Ventilation and air conditioning system debugging
1 scope
The technology standard is suitable for use in ventilation and air conditioning system debugging and running.
2 construction preparation
2.1 instrumentation requirements and main instrument tools:
2.1.1 ventilation and air conditioning system debugging instruments should be used by the factory qualified certificate and identification documents.
2.1.2 strict measurement, are not allowed to be used on the debugging work without verification, certificate, or more than qualified seal verification cycles and JingJian unqualified measuring instruments and meters.
2.1.3 must understand all kinds of commonly used instrument structure principle and performance, strict control of their use and calibration methods, according to the rules of operation steps for testing.
2.1.4 comprehensive effect measure, the use of instrument accuracy level should be higher than the level object.
2.1.5 handling and use of instruments to should take put down gently, prevent vibration and impact, do not use the instrument should be placed on special tool box, moistureproof prevent filth, etc.
2.1.6 measuring temperature meter; Measurement of humidity instrument; Measure wind instrument; Measurement of wind pressure instrument; Other common electrician instruments, tachometer, particle counter, sound level meter, steel tape, hand electric drill, live wrench, screwdriver, wire cutting pliers, hammers, high stool, flashlights, radios, calculators, rod, etc.
2.2 operation conditions
2.2.1 ventilation air-conditioning systems must be installed, debugging before operation in conjunction with the construction unit to conduct a comprehensive inspection, all comply with the design, construction and acceptance standard and the requirements of engineering quality inspection evaluation standard, to running and debugging.
2.2.2 ventilation air conditioning system operation need of water, electricity, steam and compressed air, etc., should have conditions of use, clean up the scene.
2.2.3 debugging before operation to be prepared for the following work:
2.2.3.1 should debug operation scheme, the content including debugging purposes, time schedule, debugging project, program and adopt the method;
2.2.3.2 according to debug operation plan, prepared instrument and tools and debugging record form;
2.2.3.3 familiar with ventilation and air conditioning systems for all design data, calculation of state parameter, understand design intent, master duct system, cold source and heat source system, the working principle of electric system;
2.2.3.4 duct system of regulating valve, fire dampers, smoke valve, the outlet and inlet valve plate, the working state of the blade should be in open position.
2.2.4 ventilation air volume air conditioning system debugging, the first response to fan the stand-alone commissioning, equipment in good condition after comply with the design requirements, can debug work.
3 operation process
3.1 debugging process is as follows:
The preparatory work
Ventilation and air conditioning system air conditioning automatic control system
Check control circuit check before debugging
Ventilation and air conditioning system controller and detector
Air flow test and adjust the form performance check
Air conditioner equipment automatic control system and inspection
To determine and adjust the measuring instrument calibration linkage
Air conditioning system comprehensive effect determination
Prepare completion of commissioning report data compilation
3.2 the preparation:
3.2.1 familiar with air conditioning system design drawings and relevant technical documents, indoor and outdoor air parameters calculation, air volume, hot and cold load, constant temperature accuracy requirement, etc., make clear to send (back) the wind system, cooling and heating system, the whole process of automatic control system.
3.2.2 perspective schematic drawing ventilation and air conditioning system.
3.2.3 commissioning staff, in conjunction with the design, construction and the construction unit field, find out the air conditioning system installation quality is unqualified, find out the construction in conformity with design, recorded in the schedule of defects, the deadline to revise.
3.2.4 ready for commissioning the required instruments and tools necessary to eliminate the defect list of all sorts of problems. After the power supply, water supply, cold and heat source is ready, can go as planned operation and debugging.
3.3 check before the ventilation and air conditioning system operation;
3.3.1 check whether type, specification and design of fan and motor.
3.3.2 rainfall distribution on 10-12 check if the anchor bolts are tight, damping pedestal, pulley or coupling are looking for is.
3.3.3 to check whether there is enough oil bearing area, the amount and type of filling lubricating oil shall comply with the provisions of the equipment technical documents.
We check and there is a requirement for grounding fan motor, duct ground wire connection is reliable.
3.3.5 check valves to regulate the fan, after should be flexible and reliable positioning device.
3.3.6 fan start can continuous operation, operation should not less than two hours.
3.3.7 ventilation leakage air volume air conditioning equipment stand-alone commissioning and duct system after testing qualified, may system linkage test run, is not less than 8 h.
3.4 ventilation air conditioning system of air volume measurement and adjustment:
3.4.1 track according to the engineering actual situation, draw the system single perspective, should indicate the duct size, section location of measuring points and send (back) of tuyere position, indicate the design air volume at the same time. Wind speed, cross section area and the casing outside the area (figure 4-40).
Figure 4-40
3.4.2 before open the fan, air duct and valves to regulate the tuyere itself, in the full open position, the 3-way regulating valve in the middle position (figure 4-41) air treatment rooms in various damper should be put in actual operation position.
Rule 3.4.3 open fan air volume measurement and adjustment, first rough air volume total air volume measurement whether meet the design requirements, accomplish know fairly well, to the next step debugging.
3.4.4 system air volume measurement and adjustment, the main and branch pipe of the wind
Figure 4-41
The amount available pitot tube, micro pressure meter test instrument. To send (back) system using geometric distribution method "flow" or "benchmark tuyere adjustment method" and so on, from the system as far as the disadvantage of the loop, then gradually transferred to the ventilator.
3.4.5 tuyere air volume test available thermal anemometer, impeller anemometer or cup anemometer, moving at a constant speed by using the fixed point method or method to measure average wind speed, calculate the air volume. Test times no less than 3 ~ 5 times.
3.4.6 system air volume adjustment after balance, should be achieved:
3.4.6.1 tuyere air volume, the new air volume and air volume, back to the measured values and the design of air volume value is not greater than 10%.
3.4.6.2 new air volume and return air volume should be approximately equal to the sum of the total air volume, or the sum of each delivery.
3.4.6.3 total delivery should be slightly greater than the sum of return air and exhaust air.
3.4.6.4 system air volume measurement including determination of air volume and air pressure, the system total wind pressure will be subject to full differential pressure measurement before and after the fan; The system total air volume to total volume or total of the fan duct air volume shall prevail.
3.4.7 system airflow test adjustment problems that should be paid attention to:
3.4.7.1 measuring point section location choice where the air is uniform and stable, generally choose 4 ~ 5 times the pipe diameter after produce local resistance (or long duct size) and local resistance is about 1.5 ~ 2 times the pipe diameter before (or long duct size) of the straight duct segment (figure 4-42).
3.4.7.2, when the average wind speed is measured in a rectangular duct duct measurement section should be divided into several equal small cross section to make it as close as possible to the square; , when the average wind speed is measured in a circular duct should be according to pipe diameter size, the cross section area is divided into several equal concentric rings, each circle should be measured four points.
3.4.7.3 no regulator of the air duct, if you want to adjust the air flow, can be adjusted by the temporary inserts in the air duct flange plate, air volume adjustment, flashboard staying in and seal leakage.
3.5 air conditioner equipment performance measurement and adjustment
3.5.1 track of the determination of water quantity and water spray chamber the determination of thermal properties should be in the summer or close to the summer outdoor calculated parameter conditions, its cooling capacity meets the design requirements.
3.5.2 filter resistance measurement, puts forward the determination of resistance, cooling capacity and heating capacity determination of the resistance value should be calculated and the heat value of losing air and the heat absorption value meets the design requirements.
3.5.3 in measurement process, ensure the water supply, cold and heat source, make detailed records, to check whether there is a discrepancy with the design data, if there is any discrepancy should be adjusted.
3.6 air conditioning automatic control system control circuit check:
3.6.1 verify the sensitive element, instrument or instrument adjusting and regulating model, specification and installation of parts of the actuator is consistent with the design drawing requirements.
3.6.2 drawings, according to the wiring terminal under the control panel (or over) check the wiring.
3.6.3 wiring diagram according to control principle diagram and the dish, to check the terminal (wiring.
3.6.4 radar echoes captured on the automatic regulating system of interlock, signal, remote monitoring and control device and adjust the links such as checking whether it is right, meets the design requirements.
3.6.5 sensitive element and the location of the measuring element installed, shall meet the following requirements:
3.6.5.1 requires full ventricular control, should be put inside is not affected by local heat source area; Local area is strict, strict should be on site; Room temperature components should be placed on the location of the air flow.
3.6.5.2 inside the duct, should be in the airflow stability section center.
3.6.5.3 "dew point" the temperature sensitive element and the appropriate measuring element in the manger and the position of the representative, and should try to avoid the influence of the secondary return air. Should not be affected by direct radiant heat, vibration or water droplets.
Monomer 3.7 regulator and gauge performance checking:
3.7.1 sensitive element of the performance test, according to the control system chooses the regulator or testing instrument required by dividing number must form a complete set, should carry on the calibration error calibration and dynamic characteristics, all should meet the design accuracy.
3.7.2 adjusting instruments and testing instrument, should make calibration characteristic check, check and action test of the adjustment characteristics and adjustment, all should meet the design accuracy.
3.7.3 regulator and other regulation performance of the actuator, full range, the determination of total travel time, the adjustment of the position limit switch, mark full stroke index value shall be such as to meet the design accuracy.
3.8 automatic control system and instrumentation linkage calibration:
3.8.1 before officially put into linkage, automatic regulation system should carry on the simulation test, as a calibration system of action is correct, meets the design requirements, and correct, can run into automatic adjustment.
3.8.2 automatic control system of operation should be find out factors that influence the system control quality system running effect of analysis, and judgment can achieve the desired effect.
3.8.3 operation adjustment of each section of automatic control system, should make the "dew point" of air conditioning system, secondary heater and room temperature keeps in the air parameters specified in the control points, comply with the design accuracy.
Comprehensive effect measure is 3.9 air conditioning system in various disciplines debugging is completed, determine the comprehensive index system linkage operation whether meet the requirements of design and production process, if can not meet the specified requirements, further adjustment should be done in the determination.
3.9.1 after dealing with the air conditioner of air parameters and air conditioning room air parameters in the work place.
3.9.2 to examine the effects of automatic control system, the adjustment equipment tested and approved by the long period of time, should reach the system running safely and reliably.
3.9.3 in automatic control system in operation conditions, determine the air conditioning room work is likely to remain in the area of a given the allowed range of air parameters and stability.
3.9.4 air conditioning system with a continuous run time, general comfort air conditioning system shall not be less than 8 h; When temperature accuracy + / - 1 ℃, should be in 8 ~ 12 h; Constant temperature precision in the plus or minus 0.5 ℃, should be in 12 to 24 h; Constant temperature precision in + / - 0.1 ~ 0.2 ℃, should be in 24 to 36 h.
3.9.5 air conditioning system with determination of the production load of comprehensive performance test and adjustment, by the construction unit should be responsible for, the construction and design units to cooperate.
3.10 data and prepare the completion of commissioning report.
Will be determined and adjusted the large amount of raw data to calculate and finishing, should include the following contents:
3.10.1 ventilation or air conditioning project summary.
3.10.2 electric equipment and automatic control system of monomer, test and detection, signal interlock protection device test and adjust the data.
3.10.3 air conditioning processing performance determination results.
3.10.4 system air volume adjustment results.
Debugging results 3.10.5 room air distribution.
3.10.6 automatically adjust the setting parameters of the system.
3.10.7 comprehensive effect determination results.
Air conditioning system of 3.10.8 make conclusive evaluation and analysis.
4 quality standards
4.1 measurement system fan RPM, total air volume, air pressure and compare the measured total air volume value and design value, deviation value should not be greater than 10%.
4.2 duct system leakage rate should comply with the design requirements or should not be greater than 10%.
4.3 system and tuyere air volume balance must be adjusted, the tuyere air volume measured values and the design value deviation should not be greater than 15%.
4.4 clean system efficient filter and high efficiency filter and frame joint leakage of infiltration rate must comply with the design requirements.
4.5 joint no-load running test, should keep air parameters in the design of a given range.
4.6 fan air volume for the suction side of air volume and pressure and air volume, the average and fan before and after the difference between the air flow should not be greater than 5%.
5 finished product protection
5.1 ventilation and air conditioning room door, window must be closely, should be designated persons on duty, non-working personnel keep out, need to go to work, should be distributed by security departments through working permit before entering.
5.2 fan, air conditioning equipment power start, shut down, should cooperate with the electrician operation, stick to jobs.
5.3 system air volume adjustment test, should not damage the duct insulation layer. Debugging is completed, should be restored cross-section of the thermal insulation layer of measuring points, measuring hole should be good, fixed, regulating valve, row tag in case of changes.
5.4 automatic control system of automatic control instrument elements, control panel box should make special protection measures, such as in case of electrical automatic control component loss and damage.
5.5 air conditioning system measuring adjustment has been completed, all the handover formalities in time, by using the unit operation, responsible for the air conditioning system of the finished product protection.
6 should pay attention to quality problems
6.1 after the ventilation and air conditioning system debugging problems and solutions are shown in table 4-44.
After the system debugging problems and solutions in table 4-44
The serial number solution analysis of the causes of the problem
1 the actual air volume is too large fan wind plate or small system resistance adjusting valve, increase resistance
Fan has problem to reduce the fan speed, or replace the fan
2 the actual air volume is too small system resistance large amplification part section size, improve some parts, check whether there is any jam on air duct or equipment
There is something wrong with the fan tighten belt, increasing the fan rotation speed or change the fan
Wind leakage plugging strict flange joint, manhole, leak inspection door or other
3 is too big, too much air velocity tuyere wind speed to send air volume is too large, air distribution is not reasonable to change the air supply outlet area, reduce the air output, change the tuyere type or add baffle the air distribution
Pass into 4 fans and pumps in excess of the prescribed noise, air duct wind speed is larger, local parts cause, muffler quality is bad for fan balance, fan and water pump isolation; Change a small fan speed; Enlarge the air duct size of wind speed is larger; To improve the local parts; The increase in air duct stick anechoic material
7 quality records
7.1 preview records.
7.2 smoke (wind) inspection records.
7.3 dust collector assembly at the scene, air conditioning air leakage testing records.
7.4 duct air leakage inspection records.
7.5 each room indoor airflow measurement data tables.
7.6 air volume of network form.
7.7 air conditioning systems test report.
7.8 the general ventilation system commissioning records.
7.9 the frozen commissioning records.
7.10 equipment installation engineering stand-alone commissioning records.
7.11 warm ventilation and air conditioning engineering equipment system running test record.
1 scope
The technology standard is suitable for use in ventilation and air conditioning system debugging and running.
2 construction preparation
2.1 instrumentation requirements and main instrument tools:
2.1.1 ventilation and air conditioning system debugging instruments should be used by the factory qualified certificate and identification documents.
2.1.2 strict measurement, are not allowed to be used on the debugging work without verification, certificate, or more than qualified seal verification cycles and JingJian unqualified measuring instruments and meters.
2.1.3 must understand all kinds of commonly used instrument structure principle and performance, strict control of their use and calibration methods, according to the rules of operation steps for testing.
2.1.4 comprehensive effect measure, the use of instrument accuracy level should be higher than the level object.
2.1.5 handling and use of instruments to should take put down gently, prevent vibration and impact, do not use the instrument should be placed on special tool box, moistureproof prevent filth, etc.
2.1.6 measuring temperature meter; Measurement of humidity instrument; Measure wind instrument; Measurement of wind pressure instrument; Other common electrician instruments, tachometer, particle counter, sound level meter, steel tape, hand electric drill, live wrench, screwdriver, wire cutting pliers, hammers, high stool, flashlights, radios, calculators, rod, etc.
2.2 operation conditions
2.2.1 ventilation air-conditioning systems must be installed, debugging before operation in conjunction with the construction unit to conduct a comprehensive inspection, all comply with the design, construction and acceptance standard and the requirements of engineering quality inspection evaluation standard, to running and debugging.
2.2.2 ventilation air conditioning system operation need of water, electricity, steam and compressed air, etc., should have conditions of use, clean up the scene.
2.2.3 debugging before operation to be prepared for the following work:
2.2.3.1 should debug operation scheme, the content including debugging purposes, time schedule, debugging project, program and adopt the method;
2.2.3.2 according to debug operation plan, prepared instrument and tools and debugging record form;
2.2.3.3 familiar with ventilation and air conditioning systems for all design data, calculation of state parameter, understand design intent, master duct system, cold source and heat source system, the working principle of electric system;
2.2.3.4 duct system of regulating valve, fire dampers, smoke valve, the outlet and inlet valve plate, the working state of the blade should be in open position.
2.2.4 ventilation air volume air conditioning system debugging, the first response to fan the stand-alone commissioning, equipment in good condition after comply with the design requirements, can debug work.
3 operation process
3.1 debugging process is as follows:
The preparatory work
Ventilation and air conditioning system air conditioning automatic control system
Check control circuit check before debugging
Ventilation and air conditioning system controller and detector
Air flow test and adjust the form performance check
Air conditioner equipment automatic control system and inspection
To determine and adjust the measuring instrument calibration linkage
Air conditioning system comprehensive effect determination
Prepare completion of commissioning report data compilation
3.2 the preparation:
3.2.1 familiar with air conditioning system design drawings and relevant technical documents, indoor and outdoor air parameters calculation, air volume, hot and cold load, constant temperature accuracy requirement, etc., make clear to send (back) the wind system, cooling and heating system, the whole process of automatic control system.
3.2.2 perspective schematic drawing ventilation and air conditioning system.
3.2.3 commissioning staff, in conjunction with the design, construction and the construction unit field, find out the air conditioning system installation quality is unqualified, find out the construction in conformity with design, recorded in the schedule of defects, the deadline to revise.
3.2.4 ready for commissioning the required instruments and tools necessary to eliminate the defect list of all sorts of problems. After the power supply, water supply, cold and heat source is ready, can go as planned operation and debugging.
3.3 check before the ventilation and air conditioning system operation;
3.3.1 check whether type, specification and design of fan and motor.
3.3.2 rainfall distribution on 10-12 check if the anchor bolts are tight, damping pedestal, pulley or coupling are looking for is.
3.3.3 to check whether there is enough oil bearing area, the amount and type of filling lubricating oil shall comply with the provisions of the equipment technical documents.
We check and there is a requirement for grounding fan motor, duct ground wire connection is reliable.
3.3.5 check valves to regulate the fan, after should be flexible and reliable positioning device.
3.3.6 fan start can continuous operation, operation should not less than two hours.
3.3.7 ventilation leakage air volume air conditioning equipment stand-alone commissioning and duct system after testing qualified, may system linkage test run, is not less than 8 h.
3.4 ventilation air conditioning system of air volume measurement and adjustment:
3.4.1 track according to the engineering actual situation, draw the system single perspective, should indicate the duct size, section location of measuring points and send (back) of tuyere position, indicate the design air volume at the same time. Wind speed, cross section area and the casing outside the area (figure 4-40).
Figure 4-40
3.4.2 before open the fan, air duct and valves to regulate the tuyere itself, in the full open position, the 3-way regulating valve in the middle position (figure 4-41) air treatment rooms in various damper should be put in actual operation position.
Rule 3.4.3 open fan air volume measurement and adjustment, first rough air volume total air volume measurement whether meet the design requirements, accomplish know fairly well, to the next step debugging.
3.4.4 system air volume measurement and adjustment, the main and branch pipe of the wind
Figure 4-41
The amount available pitot tube, micro pressure meter test instrument. To send (back) system using geometric distribution method "flow" or "benchmark tuyere adjustment method" and so on, from the system as far as the disadvantage of the loop, then gradually transferred to the ventilator.
3.4.5 tuyere air volume test available thermal anemometer, impeller anemometer or cup anemometer, moving at a constant speed by using the fixed point method or method to measure average wind speed, calculate the air volume. Test times no less than 3 ~ 5 times.
3.4.6 system air volume adjustment after balance, should be achieved:
3.4.6.1 tuyere air volume, the new air volume and air volume, back to the measured values and the design of air volume value is not greater than 10%.
3.4.6.2 new air volume and return air volume should be approximately equal to the sum of the total air volume, or the sum of each delivery.
3.4.6.3 total delivery should be slightly greater than the sum of return air and exhaust air.
3.4.6.4 system air volume measurement including determination of air volume and air pressure, the system total wind pressure will be subject to full differential pressure measurement before and after the fan; The system total air volume to total volume or total of the fan duct air volume shall prevail.
3.4.7 system airflow test adjustment problems that should be paid attention to:
3.4.7.1 measuring point section location choice where the air is uniform and stable, generally choose 4 ~ 5 times the pipe diameter after produce local resistance (or long duct size) and local resistance is about 1.5 ~ 2 times the pipe diameter before (or long duct size) of the straight duct segment (figure 4-42).
3.4.7.2, when the average wind speed is measured in a rectangular duct duct measurement section should be divided into several equal small cross section to make it as close as possible to the square; , when the average wind speed is measured in a circular duct should be according to pipe diameter size, the cross section area is divided into several equal concentric rings, each circle should be measured four points.
3.4.7.3 no regulator of the air duct, if you want to adjust the air flow, can be adjusted by the temporary inserts in the air duct flange plate, air volume adjustment, flashboard staying in and seal leakage.
3.5 air conditioner equipment performance measurement and adjustment
3.5.1 track of the determination of water quantity and water spray chamber the determination of thermal properties should be in the summer or close to the summer outdoor calculated parameter conditions, its cooling capacity meets the design requirements.
3.5.2 filter resistance measurement, puts forward the determination of resistance, cooling capacity and heating capacity determination of the resistance value should be calculated and the heat value of losing air and the heat absorption value meets the design requirements.
3.5.3 in measurement process, ensure the water supply, cold and heat source, make detailed records, to check whether there is a discrepancy with the design data, if there is any discrepancy should be adjusted.
3.6 air conditioning automatic control system control circuit check:
3.6.1 verify the sensitive element, instrument or instrument adjusting and regulating model, specification and installation of parts of the actuator is consistent with the design drawing requirements.
3.6.2 drawings, according to the wiring terminal under the control panel (or over) check the wiring.
3.6.3 wiring diagram according to control principle diagram and the dish, to check the terminal (wiring.
3.6.4 radar echoes captured on the automatic regulating system of interlock, signal, remote monitoring and control device and adjust the links such as checking whether it is right, meets the design requirements.
3.6.5 sensitive element and the location of the measuring element installed, shall meet the following requirements:
3.6.5.1 requires full ventricular control, should be put inside is not affected by local heat source area; Local area is strict, strict should be on site; Room temperature components should be placed on the location of the air flow.
3.6.5.2 inside the duct, should be in the airflow stability section center.
3.6.5.3 "dew point" the temperature sensitive element and the appropriate measuring element in the manger and the position of the representative, and should try to avoid the influence of the secondary return air. Should not be affected by direct radiant heat, vibration or water droplets.
Monomer 3.7 regulator and gauge performance checking:
3.7.1 sensitive element of the performance test, according to the control system chooses the regulator or testing instrument required by dividing number must form a complete set, should carry on the calibration error calibration and dynamic characteristics, all should meet the design accuracy.
3.7.2 adjusting instruments and testing instrument, should make calibration characteristic check, check and action test of the adjustment characteristics and adjustment, all should meet the design accuracy.
3.7.3 regulator and other regulation performance of the actuator, full range, the determination of total travel time, the adjustment of the position limit switch, mark full stroke index value shall be such as to meet the design accuracy.
3.8 automatic control system and instrumentation linkage calibration:
3.8.1 before officially put into linkage, automatic regulation system should carry on the simulation test, as a calibration system of action is correct, meets the design requirements, and correct, can run into automatic adjustment.
3.8.2 automatic control system of operation should be find out factors that influence the system control quality system running effect of analysis, and judgment can achieve the desired effect.
3.8.3 operation adjustment of each section of automatic control system, should make the "dew point" of air conditioning system, secondary heater and room temperature keeps in the air parameters specified in the control points, comply with the design accuracy.
Comprehensive effect measure is 3.9 air conditioning system in various disciplines debugging is completed, determine the comprehensive index system linkage operation whether meet the requirements of design and production process, if can not meet the specified requirements, further adjustment should be done in the determination.
3.9.1 after dealing with the air conditioner of air parameters and air conditioning room air parameters in the work place.
3.9.2 to examine the effects of automatic control system, the adjustment equipment tested and approved by the long period of time, should reach the system running safely and reliably.
3.9.3 in automatic control system in operation conditions, determine the air conditioning room work is likely to remain in the area of a given the allowed range of air parameters and stability.
3.9.4 air conditioning system with a continuous run time, general comfort air conditioning system shall not be less than 8 h; When temperature accuracy + / - 1 ℃, should be in 8 ~ 12 h; Constant temperature precision in the plus or minus 0.5 ℃, should be in 12 to 24 h; Constant temperature precision in + / - 0.1 ~ 0.2 ℃, should be in 24 to 36 h.
3.9.5 air conditioning system with determination of the production load of comprehensive performance test and adjustment, by the construction unit should be responsible for, the construction and design units to cooperate.
3.10 data and prepare the completion of commissioning report.
Will be determined and adjusted the large amount of raw data to calculate and finishing, should include the following contents:
3.10.1 ventilation or air conditioning project summary.
3.10.2 electric equipment and automatic control system of monomer, test and detection, signal interlock protection device test and adjust the data.
3.10.3 air conditioning processing performance determination results.
3.10.4 system air volume adjustment results.
Debugging results 3.10.5 room air distribution.
3.10.6 automatically adjust the setting parameters of the system.
3.10.7 comprehensive effect determination results.
Air conditioning system of 3.10.8 make conclusive evaluation and analysis.
4 quality standards
4.1 measurement system fan RPM, total air volume, air pressure and compare the measured total air volume value and design value, deviation value should not be greater than 10%.
4.2 duct system leakage rate should comply with the design requirements or should not be greater than 10%.
4.3 system and tuyere air volume balance must be adjusted, the tuyere air volume measured values and the design value deviation should not be greater than 15%.
4.4 clean system efficient filter and high efficiency filter and frame joint leakage of infiltration rate must comply with the design requirements.
4.5 joint no-load running test, should keep air parameters in the design of a given range.
4.6 fan air volume for the suction side of air volume and pressure and air volume, the average and fan before and after the difference between the air flow should not be greater than 5%.
5 finished product protection
5.1 ventilation and air conditioning room door, window must be closely, should be designated persons on duty, non-working personnel keep out, need to go to work, should be distributed by security departments through working permit before entering.
5.2 fan, air conditioning equipment power start, shut down, should cooperate with the electrician operation, stick to jobs.
5.3 system air volume adjustment test, should not damage the duct insulation layer. Debugging is completed, should be restored cross-section of the thermal insulation layer of measuring points, measuring hole should be good, fixed, regulating valve, row tag in case of changes.
5.4 automatic control system of automatic control instrument elements, control panel box should make special protection measures, such as in case of electrical automatic control component loss and damage.
5.5 air conditioning system measuring adjustment has been completed, all the handover formalities in time, by using the unit operation, responsible for the air conditioning system of the finished product protection.
6 should pay attention to quality problems
6.1 after the ventilation and air conditioning system debugging problems and solutions are shown in table 4-44.
After the system debugging problems and solutions in table 4-44
The serial number solution analysis of the causes of the problem
1 the actual air volume is too large fan wind plate or small system resistance adjusting valve, increase resistance
Fan has problem to reduce the fan speed, or replace the fan
2 the actual air volume is too small system resistance large amplification part section size, improve some parts, check whether there is any jam on air duct or equipment
There is something wrong with the fan tighten belt, increasing the fan rotation speed or change the fan
Wind leakage plugging strict flange joint, manhole, leak inspection door or other
3 is too big, too much air velocity tuyere wind speed to send air volume is too large, air distribution is not reasonable to change the air supply outlet area, reduce the air output, change the tuyere type or add baffle the air distribution
Pass into 4 fans and pumps in excess of the prescribed noise, air duct wind speed is larger, local parts cause, muffler quality is bad for fan balance, fan and water pump isolation; Change a small fan speed; Enlarge the air duct size of wind speed is larger; To improve the local parts; The increase in air duct stick anechoic material
7 quality records
7.1 preview records.
7.2 smoke (wind) inspection records.
7.3 dust collector assembly at the scene, air conditioning air leakage testing records.
7.4 duct air leakage inspection records.
7.5 each room indoor airflow measurement data tables.
7.6 air volume of network form.
7.7 air conditioning systems test report.
7.8 the general ventilation system commissioning records.
7.9 the frozen commissioning records.
7.10 equipment installation engineering stand-alone commissioning records.
7.11 warm ventilation and air conditioning engineering equipment system running test record.
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