The bending part of the heating coil shall not be hard bent, the plastic pipe shall not be bent less than 8 times of the outer diameter of the pipe, and the composite pipe shall not be bent less than 5 times of the outer diameter of the pipe.
.
4
.
the construction of the floor heating on the second-6 floors of the commercial part is not considered temporarily
.
Ensure sufficient construction technical force, review design parameters of drawings, reasonable suggestions and secondary detailed design of drawings, etc
.
Leveling of ground; 3
.
Due to the floor heating construction team, the site has not been surveyed all the time
.
Due to the large number of house types, each house type has a special person for construction, and the construction personnel should be fixed
.
Rechecking of floor heating pipe for superelevation; 4
.
3
.
No exposed pipe after concrete pouring
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Article 5.4.4 the curing period of concrete filling layer shall not be less than 21 days
.
Key points of this project: 1
.
If the ground is too high, communicate with civil engineering technicians in advance
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Auxiliary measures shall be taken to prevent “dead break”
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The installation works and the main decoration shall be carried out simultaneously
.
For the laying of radiant heat, if the pipeline is damaged in the process of construction, it is strictly forbidden to use hot melting method
.
Construction scope and work content of floor heating; 2
.
The installation support of water collector and distributor shall be embedded firmly, horizontally and slope to the vent valve
.
Article 5.4.1 the construction of concrete filling layer shall meet the following conditions: 1
.
Article 5.3.13 setting of expansion joint: 1
.
3
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Setting of expansion joint in hall; 3
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It is qualified if the pressure drop within one hour is not more than 0.05Mpa and there is no leakage
.
2
.
Finished product protection; 7
.
All expansion joints have been laid according to the design requirements
.
3
.
3
.
2
.
2 Meeting System: the person in charge of floor heating construction shall attend the regular supervision meeting on time at 14:30 p.m
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The scheme should be practical and submitted to Party A and the supervisor for review
.
3
.
It is strictly forbidden to operate heavy load, high temperature baking, and directly place high temperature objects and high temperature heating equipment on the ground
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Expansion joints should be made of polystyrene or high foamed polyethylene foam
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Strictly control the elevation of the floor, strictly forbid the pipeline to be exposed beyond the floor, and each place found shall be punished by 1000 yuan, and shall be repaired and improved
.
Pass the acceptance of concealed works
.
3
.
The coordinate of water supply and return of the water distributor is close to the internal corner, and the horizontal coordinate of the water supply pipe of the water distributor is 8 cm away from the decorative surface of the internal corner; the center distance of water supply and return is 8 cm, and the vertical coordinate is consistent with the center of the water distributor
.
Before pipe laying, it should actively cooperate with other installation specialists Industry team combined with on-site optimization of pipe layout, model households first
.
4
.
During the construction of the pipeline in winter, air compressor is used to clean the residual water in the pipeline to prevent freezing
.
2
.
Be familiar with the floor heating construction drawing carefully, and the on-site technicians can check and control whether the on-site pipeline routing and ground control elevation can meet the requirements of pouring in advance, so as to find out the problems
.
2
.
Preparation before floor heating construction 1
.
The cold and hot water buried pipeline should avoid the floor heating pipe, and the cold water pipe should avoid the hot water pipe
.
2
.
3
.
The machinery delivery can meet the labor requirements, such as electric box, hot melt machine, scissors and pressing machine Force gauge, pressure test tool material, etc
.
5
.
Process requirements of floor heating installation engineering; 2
.
Setting of expansion joint in long aisle (mainly for floor heating in public area on the first floor of commercial building); 4
.
2
.
3 main control items of floor heating quality 1
.
The buried part laid under the ground should not have joints (supervision check before concealment)
.
Article 5.4.2 the construction of the concrete filling layer shall be undertaken by the civil construction party; the installation unit shall cooperate closely to ensure that the water pressure in the heating pipe is not less than 0.6MPa, and the system shall be maintained at not less than 0.4MPa during the curing process
.
Preparation before floor heating construction; 3
.
7
.
Not only the finished product protection within the scope of this type of work, but also the finished product protection of other types of work
.
It is strictly forbidden to have hidden dangers such as dead corner bending, bending and flattening during the laying of floor heating
.
Expansion joints should be made of high foamed polyethylene foam or filled with elastic expansion paste
.
When the ground area is more than 30 m2 or the side length is more than 6m, the expansion joint shall be set at a spacing of not more than 6m, and the width of the expansion joint shall not be less than 8mm
.
The floor heating water collector plays a very important role in the floor heating construction, and is the heart and blood of the floor heating system; the water distributor is installed on the top and the water collector is installed on the bottom, with the center distance of 200 and the center distance of the water collector from the ground not less than 300
.
The annual image node requirements shall be completed according to the schedule requirements
.
4
.
After the maintenance period, the ground should be properly protected
.
Site management requirements 1
.
4
.
6
.
When installing the heating pipeline, the positioning of the collector and water distributor must be equipped; the movement of the floor heating before the construction of block a and block B of the tower Hand over the work, etc
.
Material requirements when entering the site, the material acceptance shall be carried out in strict accordance with the specification requirements, and the materials entering the site shall be stacked by category
.
At the same time, the installation and maintenance of the valve should be considered
.
Continuous expansion joint shall be laid at the junction with internal and external walls, columns and doors, and the joint of expansion joint shall be lapped with a width of not less than 10 mm; the expansion joint shall be reliably fixed with walls and columns, and shall be closely connected with the ground insulation layer, and the width of expansion joint shall not be less than 20 mm
.
Article 5.4.3 when pouring concrete fill layer, the construction personnel should wear soft bottom shoes and adopt flat shovel
.
The problems existing in the handover of working face shall be solved by the supervisor and Party A in a timely manner without intentional delay
.
This project is a fine decoration project, with high requirements for finished product protection, so as to avoid the quality, safety risks and damage of finished and semi-finished products caused by cross construction
.
every week to report the completion of this week, the plan of next week and the matters to be solved by the general contractor; if there are technical problems in cooperation, the constructors shall report to the supervisor for immediate meeting
.
Installation and related quality requirements of water collector and distributor; 6
.
Finished product protection 1
.
There must be a special warehouse on site to store coil pipes, and it is strictly forbidden to be exposed to the sun
.
Combination The characteristics of this project focus on the overview of the floor heating installation project 8
.
Combined with the actual situation of the site, it should actively cooperate to prepare the special construction scheme for floor heating construction
.
In this paper, the author Chu Yusong explained the construction requirements of floor heating installation in detail from the following aspects: 1
.
Installation process 5
.
In order to ensure the construction quality and visual effect, it is required that the floor heating construction should be “sample first” before the construction of each installation process, and the large-scale construction can be carried out after the confirmation of Party A and the supervisor on site
.
In special cases, it must be reported to the supervisor and the image record must be made
.
The image progress of the floor heating installation project 1
.
All components and parts must be sent to the site first, and sealed after confirmation
.
The cold and hot water pipes shall be handed over to the floor heating team under pressure after the completion of construction
.
A large number of components and parts enter the site and compare with the sealed components and parts, and all components and parts inconsistent with the sample will be cleared out of the site
.
The laying project of the floor heating in the public area on the first floor of the commercial building and 7-34 floors of block a and block B
.
Personnel arrangement and machinery delivery: block a and block B of the tower are two super high-rise buildings, which are required to be equipped with a general technical director of floor heating and two team leaders
.
Installation process; 5
.
2
.
(can be layered, phased transfer)
.
3
.
In order to meet the needs of the installation project, each specialty should cooperate with each other, and the floor heating should enter the site
.
3
.
The bridge should be added on the cold water pipe, and it is better not on the hot water pipe, because the pressure of the hot water pipe is small
.
6
.
If pouring is not reported, 5000 yuan will be fined for each place
.
Installation of water distributor and relevant quality requirements 1
.
Process points of floor heating installation engineering; 3
.
For the handover between installation types of work, there must be a shift order from the team
.
2
.
After the installation of the heating pipe and the water pressure test is qualified, the heating pipe is under pressure
.
Site management requirements; 4
.
The construction scope and work content of the floor heating of this project 1
.
Before concealment of coil pipe, hydraulic test shall be carried out, and pressure maintaining construction shall be carried out during pouring, which shall not be less than 1.5 times of working pressure, but not less than 0.6MPa
.
The expansion joint shall be separated from the whole section from the upper edge of the insulation layer to the upper edge of the filling layer
.
If you find a frozen place, you will be fined 5000 yuan
.
In this project, the water distributor is set at the lower part of the washbasin, and the installation position is according to the drawing requirements
.
