【 Weak current College 】 drainage construction drawing examination of points

1 construction and drainage professional relationship with interested parties
1.1 professional design, the relationship between each other
(1) the location of the electrical equipment and water supply (electricity) and control location, capacity match. Spare parts and control equipment can meet the requirements.
(2) electrical wiring, plumbing, ventilation, air conditioning installation location and move toward each other without interference. Buried pipe or conduit and cable Groove no contradiction between.
(3) connect devices to electrical wiring, control lines, pipes (water, oil and gas) road and equipment into the line to take over the position of the match.
(4) water, electricity, gas and wind pipe or a line in the installation of convergence regions and construction sequence is clear.
(5) the internal layout of the well pipe is reasonable, there is no contradiction in and out of the pipeline.
(6) various types of installation, debugging, testing, testing whether the clear relationship between the tie, with or without affecting each other.
1.2 drainage pipe installation and building relationships
(1) reserved, embedded location and install the actual need to match.
(2) equipment base location, size, elevation meets the needs of pipe laying.
(3) pipe Groove position, size, elevation meets the needs of pipe laying.
(4) building Elevation datum points and put the line basis position is clear.
(5) drainage, fire fighting pipe laying position and elevation of the building, structure, dimensions, and so there is no location.
(6) the building design. If the main structure, walls, ceiling and doors position structure structure, internal and external decoration materials and installation are no contradictions.
2 construction drawing examination of points
The water supply and drainage, fire fighting, civil defense Engineering Service Tribunal figure of several major principles and varies according to the drawings directory are described below in points.
The principle of trial 2.1
(1) design meets the relevant technical policy and standards and the building design documentation prepared depth requirement.
(2) drawings information are complete. Ability to meet construction requirements.
(3) design is reasonable. There are no omissions. A drawing of the mark have no errors. Relevant channel number, device model is complete and correct. The relevant parts of elevation, slope, coordinates of the location is correct. Material name, specifications, quantity is correct and complete.
(4) design specification and design of the technical requirements are clear. Design meets the conditions for the construction and equipment of enterprises. If you need to take special measures. There is no difficulty in technology. Can you guarantee the construction quality and construction safety.
(5) design intent, engineering characteristics, equipment, facilities and control process. Technological requirements are clear. The design is clear. Compliance process and technology requirements.
(6) for pipeline installation location is beautiful and easy to use.
(7) pipe, components, equipment, technical characteristics, such as pressure, temperature, medium is clear.
(8) on the fixed, vibration, thermal insulation and corrosion, heat insulation and use of methods, materials, construction technology requirements and paint color provision is clear.
(9) requires the use of special construction, construction tools, construction machinery parts requirements and practices are clear.
(10) there are no special material requirements, specifications, variety, quantity can meet the requirements, there is no possibility of substitute materials.
2.2 instance map points
2.2.1 General description
(1) design description should include the design basis, design, supply and drainage, fire protection systems and to the point of recited, tubing and connectors, valves and valves, pipe laying, pipeline pressure and corrosion-paint, piping and equipment insulation, etc.
(2) the main equipments, materials table water pumps, water treatment equipment, water heating, cooling, fire-fighting facilities, health apparatus, whether or not the security model.
(3) pipelines, equipment, anti vibration, noise, water hammer, settlement expansion, expansion, the prevention of pollution, prevention of dew, Frost, gas discharge, fixed, insulation, inspection, maintenance, etc. are to take effective and reasonable measures.
(4) whether the requirements of the fire code for setting the fire hydrant, fire sprinkler, fire extinguishing, water sprinkler, fire extinguishers and other fire safety systems and facilities, water requirement is justified.
(5) whether the use of outdated products.
2.2.2 to the row level and figure
(1) living pool, water tank is independent of the structure type.
(2) water supply piping and water heating equipment and may lead to the return of sanitary connections are there measures to prevent backflow contamination.
(3) position of the domestic water supply pumping stations are avoided with anti-vibration or have a quiet room on request. Pump, suction and pressure pipe bracket and engine room wall roof taken measures vibration or noise.
(4) there are no toilets. Bathroom layout in the restaurant, food processing, storage and distribution equipment, strict hygienic requirements of the upper House.
(5) underground sewage pump shaft is set to seal well cover and snorkel.
(6) selection of water heating equipment and its layout, laying is considered maintenance requirements.
(7) in the laying of pipeline layout, meet regulatory requirements.
2.2.3 water fire protection, civil defense section plan
(1) building in different rooms or public fire fighting facilities choice is appropriate, for any omission.
(2) fire water tank, high water tank and fire pump house meets specification requirements.
(3) fire hydrant and automatic sprinkler head, pump adapter layout meets specification requirements.
(4) requires the water curtain partition or meet fire curtain partition Department whether the regulatory requirements set by the water facilities.
(5) whether the fire elevatorSet the drainage facilities.
(6) the cold regions. No heating in the underground garage has frozen the fire water pipe may be whether there is reasonable and practicable measures antifreeze.
(7) the shape of fire extinguishers and arrangement meets specification requirements.
(8) when someone or basement. Drainage design should be consistent with the relevant norms of civil defense design and the locals against the requirements of the competent authorities.
2.2.4 General layout
(1) fire private or domestic use of outdoor water supply pipe is according to the specifications in a pipe. Fire hydrant, pump adapter layout for conformance to specifications.
(2) in municipal sewage, storm drain junction wells of pipe diameter and elevation are appropriate.
(3) septic tank, cesspools, etc and buried water cisterns of distance is not less than 10m. when not met. Are taken to prevent contamination of water reservoir water of effective measures.
2.2.5 system diagram
2.2.5.1 water supply system
(1) high level and low level architecture of water zones for conformance to specifications, most do not use water pressure can be guaranteed.
(2) water supply piping connection exists backflow contamination problems.
(3) water tank, water tanks to the point of drinking water supply pipe is complying with the provisions adopted secure a pollution prevention measures.
(4) in accordance with the regulations required for the entry in the water, is set out in the water treatment and water supply system, water is in the water balance.
2.2.5.2 hot water system
(1) whether the hot-water supply and water partition partition, hot water supply pressure with cold water pressure balance, (separate use cold water or hot water except).
(2) where the hot water supply system is set up effective circulation system, hot water system for high-rise buildings with pressure relief valve when partitioning the circulatory system can guarantee the normal work.
(3) whether a public bathroom equipped with temperature stability and water-saving measures.
(4) system is used for the expansion pressure relief valve, expansion pipe (or expansion tank), expansion joints, fixation, and other accessories. Is there to prevent and alleviate pipeline and equipment-scaling, corrosion of the equipment.
2.2.5.3 drainage system
(1) drainage system for rain, dirt and rain bucket diversion; layout of compliance.
(2) sewage standpipe bottom horizontal drainage pipe connection meets specification requirements. Or take out home alone.
(3) water pipes is according to the specifications set snorkel and checkpoints, sweeping mouth.
2.2.5.4 fire protection system
(1) fire water tank and water in the roof fire water tank volume compliance. When fire, life combined with pools, water tanks. There is no guarantee that water is not passive fire protection measures.
(2) fire meets specification requirements. System for vacuum, pressure relief, safe use and ensure the effectiveness of measures for fire. There are no measures of the post of fire pumps.
(3) fire pumps and booster equipment meets specification requirements.
(4) whether indoor hydrant network specifications into the ring. The service pipe pipe is not less than two. Pipe arrangement of hydraulic network meets specification requirements.
(5) the roof is set test fire hydrant. Automatic sprinkler system layer is there at the end of the Terminal on the water test device.
(6) fire hydrant and sprinkler off water system pipe diameter is justified.
(7) the cold regions, and not whether the heating, garage, BU using dry or preaction sprinkler system.
(8) fire pump adapter settings meets specification requirements.
3 construction drawing examination of figure considerations
(1) see the master plan is to audit whether total design water consumption. As well as the local average water pressure and the selection of pipe diameter fits. As well as the cleanliness of water quality. To consider the accumulation of scale to reduce the occurrence of pipe flow. Therefore, the total intake duct should increase the level of water consumption basis. To check the pipe and other pipeline or building has no effect and impede the construction. Whether you need a diversion.
(2) in view of the construction drawing unit project. Mainly water system perspective. In auditing settings for the major check pipes are reasonable. Water meter settings location is easy to check and repair. To local service when the control valve. Configuration of health apparatus is economical and reasonable.
(3) for a large public buildings, water supply and construction of high-rise buildings. You want to audit for any separate fire water system. But it cannot be mixed in the general use of water piping it should have a single valve wells, separate pipe, single valve. Place the valve shaft position is less open and close. Is less maintenance. There are no obstructions around. To ensure that fire when the emergency use.
(4) on the design of the drainage pipe, materials, drainage system compatible health apparatus. When can the Tribunal figure on the pros and cons of using a material to raise questions or suggestions. For design or use of the unit of reference.
(5) according to the usage of auditable pipe diameter size is appropriate. As some public toilet because current use conditions and the staff of the complex. Its sewage standpipe diameter cannot be as usually several dunwei. Sometimes design of tube diameter DN100. Often need to increase to DN150. use only. Not be blocked.
(6) on drainage in the outdoor section. Whether the principal is pipe slope. The adequacy of the gradient. Sewage pipe bends the confluence is set to check well. Its depth is sufficient. You should also note the location of the manhole. Whether it will pollute the environment and affect vulnerability to contamination of underground structures.
(7) construction and drainage construction drawings to check each other's content is largely elevation. Lower level rooms using the same function. Prevent the upper room to kitchen and bathroom. The lower part of the housing. This damage to the room's perfect. Once the above Division of water leakage between the kitchen and bathroom. Would seriously affect the lower roomUse. At the same time to prevent the outer riser set to balcony. Both inconvenient and install even more important is the impact on appearance.
(8) to drain through beam is in some parts of the body affects the structure. Because of the drain through the beam pipe to occupy a position. The beam section. Weaken the beam's intensity. Especially the balcony outside the root of the cantilever beams. Drain through are not allowed. Otherwise there is no guarantee that the intensity of the cantilever. Leave a security risk.
4 closing
Construction drawing triage is a very detailed technical work. Its comprehensive strong. Good drawings to be audited. In addition to examining figure who seriously look at the pictures. Also with the Tribunal's own quality related graphs. Audit diagrams ' comprehensive quality. Including the ability to design look; the related design and construction specifications of understanding and awareness; on construction technology and construction method sites experience; knowledge of building and structure; on the edge of the water supply and drainage professional relevant professional knowledge; construction equipment construction and a variety of cross-channel integrated layout in collision avoidance. As long as we in engineering practice to continually improve the knowledge and skills. We will be able to improve the audit plan. More pro-active solution to construction drawing problems in ensuring the quality of the project.