Rain water pipe installation technology of sewing, deformation

1 scope

This technology is applicable for industrial and civil engineering rainwater pipes, expansion joint manufacture and installation.

2 construction preparation

2.1 materials and requirements:

2.1.1 material, shall conform to the design specifications and standards detailed requirements.

2.1.2 plate and pipe: 26th, galvanized tin, cast iron pipe, 2mm thickness steel plate, 3mmx20mm φ 6 round and flat iron.

2.1.3 other material: φ 6 screws, pins, welding, soldering, hydrochloric acid, cement.

2.2 the main machinery;

2.2.1 mechanical: shearing machines, bite, not toothed saws, welding machine.

2.2.2 tools: soldering iron, hard wood, hardwood clappers, wooden hammer, steel chisel, PIN, square steel, screwdrivers, circular steel pipe, joint by joint, rulers, marking.

2.3 operating conditions:

2.3.1 roofing screed construction has been completed, check for acceptance.

2.3.2 building storm sewer Department decoration project was completed with storm conditions.

2.3.3 for the construction and installation of roof must be provided with a protective bar, ensure that installing water fall mouth of safe operation.

3 operational processes

3.1 process:

By: → line → cuting → forming → rustproof coats

Installed: → line → Setup → fixed → painting

3.2 water bucket fabrication and installation:

3.2.1 marking: according to the drawing size, materials, specification setting out dash, via reviews and drawings by accident, cut to save material for jacking blanking should be reasonable, aniseed, after feeding, cutting back the shape and size should be accurate, material type, specifications are correct.

3.2.2 after marking, cut out a template first, accurate cropping, cut vertical laying.

3.2.3: all the material counterpart welding welding, welding the correction after meets the requirements.

3.2.4 antirust coats: making good roof drain (including cast iron rainwater buckets) should be rust-proof coats.

Cast iron gullies should be brushing paint, remove weld slag, steel wire brush to brush the rust off, uniform brush paint together.

Galvanized metal water bucket, brush phosphating primer.

3.2.5 cable installation location:

3.2.5.1 overhang eaves roof drain, according to design requirements, first placed eaves plate steel, and find the roof drain location, check the height, with horizontal roof drain, with φ 6 steel frame solid, good care at the end of the template, with the cornice with a strength class of concrete compacted, not prominent gullies leveling level. Its structure is shown in Figure 10-15.

3.2.5.2 daughter wall rain bucket mouth: according to design location and the requirements, in construction structure Shi, reserved water fell mouth holes, water fell mouth of rain bucket installation Qian should pop-up rain bucket of center line, find good elevation, will rain bucket with cement mortar lying stability, with fine stone concrete embedded solid, filling closely, outside side for masonry water wall Shi, should by masonry row brick posted masonry and outside wall asymmetrical figure consistent. Its structure is shown in Figure 10-16.

3.2.5.3 rows of straight rain bucket: use cast iron, laying the elevation of water fall mouth waterproof layer increases should be considered additional layers, flexible sealing, surface protection and drainage slope, within 500mm of the water fall mouth slope shall be not less than 5%, and apply waterproof paint or sealing compound seal coating, of a thickness not less than 2mm. As shown in Figure 10-17.

3.2.6 paint: water bucket installed, with the rain Guan Louming paint brush design requirements.

3.3 production and installation of a rain water pipe: galvanized iron pipe for rainwater pipes, cast iron pipes, hard plastic tube. Galvanized iron pipe galvanized tin for the construction unit production cast iron, hard plastic for the acquisition of industrial products.

3.3.1 marking: galvanized iron water pipes, according to the specified round diameter, generally with the 26th, Tin, bite forming production, also has a square cross section of storm sewer, processed in the same way. Processing, with pin out punctuation, 5~6mm head size circumference difference, according to punctuation, draw the cutting line, size head upside down each other, followed by dash, check and correct, first cut out the templates, forming two tryout.

3.3.2 bite mouth forming: rain tube (round) General for flat bite mouth, CD good of pipe, first will a long imports on Qi Fanggang angle, push to first designated good of bite mouth line, with party wood down light playing, formed anti-bent bite mouth, then will Tin turn turn, will another side of bite mouth knock out, and will two correct, and against bent followed by knock into 90 degrees angle, at will Tin put in round tube Shang, with hand pressure into round arc, into round-like, makes its pros and cons bite mouth side intersect posted, with decision in round tube General bite mouth knock tight, that into round rain tube, Mark head cut into small triangles.

3.3.3 paint rust-proof layer: after the rain made should be painted inside phosphating primer, coating evenly.

3.3.4 rain tube installation: installation rain tube with outside wipe gray shelf by Shang down for, first in water fell mouth at hanging pendant pop-up rain tube along wall of location line, according to rain tube each section length, pre volume out fixed card location, spacing General for 1200mm, set in following a section tube of top, lying clip with cement mortar fixed, shall not scored wood plug fixed and fixed in wood stuffed. When rain water pipe in case of construction punch should be obtuse angle bend connected, and plus card at the bend.

3.3.5 paint: rain water pipe after installation should be strengthened to protect, with the last falling shelves painted surface coat of paint.

3.4 expansion joint production and installation of steel deck:

3.4.1 underlines: expansion joint cover made with galvanized iron sheet, 24~26, or according to the design requirements of other materials.

Based on design drawings, control situation, determine the size, model and, if necessary, category template, timed lap length, draw processing specific drawings, according to the figure dash, checked into a form of welding.

3.4.2: bend according to drawing or Binder, welding, making it conform to the segment of processed products, appearances before brushing rust layer.

3.4.3 installation slot cover plate: slot before installing, check seams telescopic, filled in the gap of the asphalt, ointments, such as caulking is complete, no missing items, installation of expansion joint cover again.

3.4.4 paint: installation inspected, brushing paint overlay.

4 quality criteria

4.1 project:

4.1.1 making rainwater and storm sewer pipe must comply with design requirements without welding seams, bite-free slots.

4.1.2 water, storm drains, and the expansion joint must be installed firmly, method, spacing, the specification requirements, drainage smooth, watertight.

4.2 Basic project:

4.2.1 a rain water pipe connections must be close, socket, length, and height of the drain from the apron, is, the side seen as straight, corner should be a obtuse angle, every rain water pipe must have a pipe coupling fixed. On the slot cover plate screw down each plate must be nailed tight.

4.2.2 roof drain, storm sewer, deformation joints should be coated rust layer coated after installation finishes, paint should be uniform, not through, no leakage of brush materials used shall conform to the specifications, products should be coated with a galvanized iron sheet zinc sulfonate or phosphating primer.

4.2.3 balcony, rain covers, pipe diameter, outlet length structure, should comply with the design requirements, the installation should align, position, no leaks.

5 finished product protection

5.1 product handling with care, stacking, rainwater storage surface should be flat, horizontal, vertical layering pieces. Avoid damage and deformation.

5.2 have been painted in layers of rust, paint protection, prevent rust, contaminated paint finish.

5.3 rain water pipes before installation, rain bucket measures should be taken, not to make the roof drain drain water wall, wall caused pollution.

6 quality problems to be noticed

6.1 installation of rain water pipe is not straight: install clamp is not careful when aligning. Elastic line side should control the distance from the wall, I think straight.

6.2 water bucket above screed: roof water management should be strengthened; operation should be carefully to ensure waterproofing layer in the required slope.

Rainwater pipes, deformation joints firmly fixed in 6.3: primarily in Cork under the base with nails or wood screws caused; fixed point is strictly prohibited under Cork, rain water pipe clamp fixed by mortar, and other nail or bolt.

7 quality records

This standard shall meet the following quality records:

7.1 product, the purchase of goods shall be subject to inspection, meet the design requirements should complete the acknowledgment procedures.

7.2 installation after the acceptance information.

7.3 quality acceptance inspection and evaluation information.