1 scope
This technology is applicable to long-wing of grey cast iron, round aerofoil, columnar and M132 group with the installation of the heatsink, steel tube type and plate type, column type and string-type radiator installation works.
2 construction preparation
2.1 materials requirements:
2.1.1 radiator (iron and steel): radiator models, specifications, pressure to be used must comply with the design requirements and a factory certificate; radiators must not have trachoma, corresponding surface is uneven, inconsistent side, cracking and Center distance and so on. Wing-type radiator fins intact. Steel series of fins shall not loose, curly, touch damage. Steel radiator should be handsome in appearance, the correct thread, elastic, and paint in good condition, the entire set of furnace not Alice stared blankly.
2.1.2 Group on part of the radiator: silk, plugging the furnace, furnace repair, threaded round wing flange, elbow, bow, bend, staple, tees, elbows, bolts, nuts, and oil, the quality requirements, offset clasp, square buckle, FLOSS, fault-free buckle. Correct thread, elastic fit. Asbestos rubber gasket 1mm is appropriate (not more than 1.5mm), and in accordance with the working pressure requirements.
2.1.3 other materials: bar, pad, supporting hooks, fixed cards, expansion bolts, steel, cold, oil, lead, oil, twine, anti-rust paint and cement used should conform to the quality and specification requirements.
2.2 the main tools:
2.2.1 machines: bench drill, drill, drill, electric pressure test pump, sand wheel saws, pipe threader.
2.2.2 tools: cast iron radiator Group on shelves, on key cases, pressure, pipe wrench, iron brush, saw, hammer, wrench, sets screen Board, self-wrench, a chisel and a hacksaw, taps, simmering tubes, manual test pump, radiator, gas welding tools, transport vehicles and so on.
2.2.3 tools: spirit level, ruler, wire pendant, pressure gauge.
2.3 operating conditions:
2.3.1 group site has water and power supplies.
2.3.2 cast iron radiators, supporting hooks and clips have been rust clean and brush paint.
2.3.3 finished interior walls and floors.
2.3.4 Interior heating pipes, risers installed, connected to the radiator pipe reserved nozzle is correctly positioned, level met the requirements.
2.3.5 radiator installation and construction materials are allowed to stack or other obstacles.
3 operational processes
3.1 process:
Preparation groups tab → group → prefabrication and installation of the heatsink cooler single pressure test → →
Radiator installation installing → radiator cooling doors → painting the pipe system installation → test →
Sub-paragraph 3.2 Summary of construction drawing layers and specifications out radiator number of groups, the number of each group, used columns into a table so that the Group and the installation.
3.3 all kinds of cast iron column radiators group:
3.3.1 set for the former to be available with a radiator on the shelves or under radiators specifications with 100x100 wood lying on the ground, four iron wedge wood tied with a wire reinforced, made a temporary set.
3.3.2 group gasket with asbestos rubber gaskets, of a thickness not exceeding 1.5mm, oil-immersed.
3.3.3 dirt within the radiator NET, steel brushes except silk NET counterparts and rust, buckle up, turn the pieces.
3.3.4 group according to statistics the number of specifications, set before the radiator, do the thread selected test.
3.3.5 Group on Shi should two people a group pendulum good first tablets, twist Shang on silk a buckle, sets Shang asbestos rubber pad, will second tablets anti-buckle alignment on silk, find are Hou two people the with a hand-held live furnace tablets, another hand will on silk key insert on silk diameter, first to back slowly back, then again Shun turned, makes ends into buckle, while slowly balanced twist tight, as this by tablets Group on to by needed of tablets number weizhi.
3.3.6 radiators consisting of slowly up, transported to a centralized location by manual or car.
3.4 external bracing prefabrication and installation:
3.4.1 according to the number and length of the radiator, calculate the length of pull out, cut off 8~ φ φ 10 round steel and straightening, collecting caps well screwed on both ends, the nuts: good morning, after rust brush paint again.
3.4.2 20 and above the radiator and pull, on each pull end caps a ride codes from the radiator upper and lower ends of the outside column into four, a ride on the code Strip on each nut; straight after the Board screw down, exposed shall not be more than one of the threaded nut thickness.
3.5 radiator pressure test:
3.5.1 the radiator to the test stage, with box spanner and temporary heart stoppage of good temporary furnace, good gas nozzle, the joining pressure test pump gt radiator pressure test can be connected directly to the pump.
3.5.2 when pressure testing open the water inlet valve, heat sink filled with water, and opening the valve, exhaust air, water full close on gas nozzle.
3.5.3 when pressure to the pressure, close the water inlet valve for 5 minutes and see if each interface leakage no leakage is qualified.
3.5.4 as has leakage with pencil made mark, will water put do, remove furnace blocking or furnace fill heart, with long Rod key from radiator external competition, volume to leaking interface of length, in key Rod Shang do mark, will key from radiator on silk hole in the stretch into to mark at, by silk buckle spin tight of direction twist moving key, makes interface continues to tightened or remove for pad, as has bad tablets needed for tablets. Steel radiator if there is leakage welding of sand hole, returning to fix a hydraulic test until qualifying. Not bad will be clearly marked (or a clear holes with a hammer to smash bad stored separately) to prevent mistakenly set to mix well again.
3.5.5 opens the drain valve and remove temporary silk threads and temporary heart, leaking water radiator after transportation to a centralized location, repair welding to repair brush two antirust paint.
3.6 install the heat sink:
3.6.1 according to design requirements, using tables in different sizes, specifications and groups of well finished radiator pressure testing and delivered to the room, according to the installation position and height on the wall painting installation centre line.
3.6.2 supporting hooks and fixed card installation:
3.6.2.1 columnar legs heatsink installation. 3/4, draw a horizontal line to the radiator high from the ground, and the intersection of the centre line of the heatsink painting mark this 15 double radiator below the fixed location. Singular missed half a piece to one side. More than 16 tablets should be planted two fixed cards, height 3/4 height of the heatsink of the horizon, from the radiator at each end in 4~6 place into. Cylindrical radiator dimensions (Figure 1-12).
3.6.2.2 mounted cylindrical radiator: supporting hook height according to the design requirements and should be back from the radiator on the height above ground of 45mm, draw a horizontal line. Hold hook-and-line is used to determine the horizontal position and line drawing scale-foot cross arm is inscribed with fins. Drawing a line under the number location and quantity distribution of support frame, draw a center line of the installation position of supporting hooks, mount the fixed height of the heatsink back from supporting hooks on the Center 3/4 of the total height of the heatsink, draw a horizontal line, its location and the number of installed with leg mount. Mounting column radiator dimensions see figures 1-12 and 1-13 (in parentheses).
3.6.2.3 the use of a chisel or drill, and draw the location of holes in the wall. Fixed the hole depth of not less than 80mm, supporting hook hole depth not less than 120mm, the depth of the poured concrete walls to 100mm (using expansion bolts by expansion bolts required depth).
3.6.2.4 rinse water hole in the debris, fill M20 cement mortar to the deep middle, fixed, hold the hook into the hole in the card, plugged, draw lines or 70mm tubes placed on supporting hooks, using horizontal leveling feet alignment, filling the mortar trowel.
3.6.2.5 columnar radiator fixed and support structure according to l-14 processing. Supporting hooks and the number and location of fixed cards by 1-15 installation (representative of square furnace).
3.6.2.9 radiator support bracket installations should meet the requirements of l-13.
3.6.3 heatsink installation:
Install support bracket number table 1-13
Radiator type a fixed number of cards in each group (a) beneath the hook (a) total (a)
All kinds of steel cylindrical furnace for cast iron and cast iron
Radiation convection radiator, M132 3~12
13~15
16~20
21 and over 1
1
2
2 2
3
3
4 3
4
5
6
Cast iron round wings each radiator are 2 supporting hooks included
Various steel closed radiator
High in 300 and below standard welding 3 fixed shelves, 4 more than 300 welding bracket
≤ 300 per set of 3 fixing bolts
>300 each group of 4 fixing bolts
Various Panel radiator Assembly the four fixing bolts (or four manufacturers supporting hooks)
Note: closed radiator or by manufacturers of steel supporting bracket in each group.
3.6.3.1 column radiators (including cast iron and steel) and the furnace of radiation convection radiator plug bushing and furnace oil, and asbestos rubber gasket, then tighten.
3.6.3.2 legs stable loading of the heatsink. Furnace fill heart are buckle side towards State tube direction, will fixed card inside nut Shang to distance meet requirements of location, sets Shang two block splint, fixed in in column Shang, with Shang outside nut, put radiator push to fixed of location, again put fixed card of two block splint cross came put citizen, with homemade tube wrench twist tight nut to must degree Hou, will radiator find straight, and find are, pad prison Hou tightened nut.
3.6.3.3 mounted column radiators and radiation-convection heat sink gently lift during straight on the hook, tighten the fixing clip straighten.
3.6.3.4 round-wing-type radiators installed. Assembled radiator up with care in supporting hooks found on straight alignment. Multi row series, flange first temporary good morning, then measure the size and piping connections.
3.6.3.5 closed strings made of steel and steel Panel radiator lifted hung on the fixed bracket, washer and nut on the belt, close to a certain degree level alignment, then tighten in place.
3.7 radiator cooling doors
3.7.1 according to design requirements, will need cooling furnace door eye blocking φ 8.4 in the drill hole, tapping on the bench with 1/8 ' taps.
3.7.2 oil furnace blocking a good lead, plus a good asbestos rubber gasket, radiator with box spanner to tighten. In the cold lead oil on the threads, wrapped around a little hemp thread, twisted by the fire plug, use wrench to tight the moderate, let hole inclined 45 ° outwards (should be installed in front of comprehensive pressure test).
3.7.3 steel series fin type radiator, flat tube radiators according to design requirements and statistics required number of radiator cooling, at the request of processing when ordering, the manufacturers are responsible for as well.
3.7.4 steel plate radiator out doors special doors let water exit plug, when making order request.
3.7.5 rounded wing-type radiator out door installation according to the design requirements on the flange cooling eye, practices the same furnace install and the cold wind blocking the door.
4 quality criteria
4.1 project:
Radiator type, specification, quality and hydrostatic test installation must meet the requirements of specification for design and construction (such as when one group hydrostatic testing not required, should be carried out according to factory test pressure of a test 5min seepage and leakage is qualified).
Inspection methods: inspection and test records.
4.2 Basic project:
4.2.1 cast iron wing-type radiator fins soundness of installation shall comply with the following requirements:
Long wing type, top Department off wing not over 1 a, length is unlikely to Yu 50mm, side not over 2 a, cumulative length is unlikely to Yu 200mm; round wing type, each root off wing number not over 2 a, and cumulative length is unlikely to Yu a wing tablets perimeter of 1/2, off wing surface should down or towards wall installation, surface clean, as reached exposed surface no off wing.
Inspection method: observation and standard checks.
4.2.2 steel string heatsink fins intact should comply with the following requirements:
Loose fins does not exceed 2% of all fins, fin and tidy without warping.
Inspection method: lever and observe the examination.
4.2.3 installation of the cooling equipment, carrier shall meet the following requirements:
Number and structure design and construction specifications, correct position, laying laying firm support bracket aligned, close contact with the radiator.
Inspection method: observation and hand checks.
4.2.4 radiator support brackets painted should comply with the following requirements:
Paint type and brushing a few times to meet design requirements, good adhesion, without peeling, blistering and missing coating, coating thickness uniformity, consistent color, flow and pollution-free.
Inspection method: Visual check.
4.3 allowable deviation:
Radiator installation location according to the design requirements, design custom installation location should be the same when not required; mount radiator height above ground by design, design requirements, generally not less than 150mm, but mounted on the radiator surface shall not be higher than the window height. Radiator installation coordinates, high tolerance and inspection methods are given in table l-14.
5 finished product protection
5.1 radiator group, to pressure test the installation state to carrying, neatly stacked. Operation when placing the following in the land to mat board, so as not to fall or touch the ground rusting, should prevent the rain without having to brush oil and rust-proof.
5.2 radiator handling into the floor, wooden gate, corner of ground should be careful not to bump the bad. Cylindrical furnace stove legs should be well protected and avoid touching off. Wing-type furnaces to prevent fin damage.
5.3 when picking his hole in radiator supporting hooks, exterior wall tiles should be careful not to push out the wall. Plant care in the light wall hook and fixed card application drill the hole to prevent wall cracking tick.
5.4 steel radiator transport and welding process to prevent the blades knock after installation should not be stepped on, curly leaf renovation should be smooth.
5.5 shotcrete protection measures should be taken before installing the radiator, preventing pollution, and keep them clean. Debris should be cleaned between the blades and to prevent falling into the debris.
6 quality problems to be noticed
6.1 install the heat sink position inconsistent. Not according to the drawings or measuring card size of furnace hook furnace caused by inaccurate.
6.2 asbestos rubber gasket radiator counterparts too thick, prominent lip surface of the liner diameter. Using liner thickness over 1.5mm or using dual pad, liner diameter is too large, you should use qualified liners; circular wing flange gasket thickness must not exceed 3mm.
Radiator installation method for the determination of tolerances and table 1-14
Allowed deviation of the project method
Distance from the wall on the inner surface (mm)
With the center line of the window (mm) 6
20 level (the level of
Feet), rulers,
Elevation from the ground at the bottom (mm) ± 15 lines and check
Center line vertical (mm)
Side tilt (mm) 3
3 using hanging wire and
Standard check
All
Long
Within the
The
Bending
Curved ash
Casting
Tiechangyi type
(60) (38), 2~4 (mm)
5~7 (mm) 4
6
Round wing within 2m (mm)
3~4 (mm) 3
4
It's hot
M132
Column type convection radiator 3~14 (mm)
15~24 (mm) 4
6
Series 2 (mm)
3~4 (mm) 3
4 use level (level),
Rulers, cable and standard checks
Steel
System Board-l<1M (mm)
l>1m (mm) 4
6
Tube-l<1M (mm)
l>1m (mm) 3
5
Column 3~12 (mm)
13~20 (mm) 4
6
6.3 heatsink installation unstable. This is due to the support hook arc does not comply with the radiator or contact is not tight, thanks to hooks, furnace is not strong, cylindrical radiator legs with no real cause, measures should be taken to remedy.
Hook 6.4 furnace furnace not in prison are not. Into the hole too shallow, hole cleaning not clean cement grade is too low or not caused by the filling of mortar is not strong; planted when there is no alignment or location of furnace hook, furnace is not being caused by inaccurate.
6.5 plugging the furnace, the furnace repair heart buckle is too small. Because the thread is too tight cause, prior to installation should complete the thread selected test.
6.6 floor installed the wrong column radiator number of legs, uneven placement. Requires two legs up to the 14, 15~24 should be installed 3 legs, 25 pieces and above installed 4 legs, legs evenly.
6.7-hanging radiator height above ground according to the design requirements, design requirements, generally not less than 150mm, but mounted on the radiator surface shall not be higher than the window height.
6.8 round wing with Wing-type radiators should be installed or wall installation, so as not to affect appearance; group and the eccentric flanges not wrong to ensure water or condensation water to smooth out the radiator.
6.9 in conjunction with civil construction, ensuring the accuracy of standpipe reserve and ground elevation, difficult to avoid to install the heat sink, avoid the saws, horizontal, pad oven legs.
Quality of 7 records
7.1 there should be material equipment factory certificate.
7.2 material and equipment entering inspection records.
7.3 Group on furnace and single radiator pressure test records.
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