CJJ 71-2000 Engineering Technical Specifications for Motor Vehicle Washing Stations
Some standard content:
Engineering construction standard full text information system
Industry standard of the People's Republic of China
Technical specification of
automotive rinsing station engineeringCJJ71-—2000
2000Beijing
Engineering construction standard full text information system
Engineering construction standard full text information system
Industry standard of the People's Republic of China
Technical specification of
automotive rinsing station engineering engineeringCJJ71-—2000
Editing unit: Tianjin Environmental Sanitation Engineering Design InstituteApproving department: Ministry of Construction of the People's Republic of ChinaEffective date: August 1, 2000
2000 Beijing
Engineering Construction Standard Full-text Information System
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Notice on the Release of the Industry Standard "Engineering Technical Specifications for Motor Vehicle Washing Stations"
Construction Standard [2000] No. 104
In accordance with the requirements of the Ministry of Construction's "Notice on Issuing the 1995 Urban Construction and Construction Engineering Industry Standard Formulation and Revision Project Plan (Second Batch)" (Construction Standard [1995] No. 661), the "Engineering Technical Specifications for Motor Vehicle Washing Stations" edited by Tianjin Environmental Sanitation Engineering Design Institute has been reviewed and approved as a mandatory industry standard, numbered CU71-2000, and will be implemented on August 1, 2000. This standard is managed by the Shanghai Municipal Environmental Sanitation Administration, the technical unit responsible for urban environmental sanitation standards of the Ministry of Construction, and is interpreted by the Tianjin Environmental Sanitation Engineering Design Institute. It is published by the China Construction Industry Press organized by the Standard and Norms Research Institute of the Ministry of Construction. Ministry of Construction of the People's Republic of China
May 10, 2000
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Engineering Construction Standards Full Text Information System
According to the requirements of the Ministry of Construction's Construction Standard [1995] No. 661, the code compilation team has formulated this code on the basis of extensive investigation and research, careful summary of practical experience, reference to relevant foreign standards and extensive solicitation of opinions. The main technical contents of this code are: 1. The site selection principles, general layout and architectural design technical principles of motor vehicle washing station projects; 2. The technical principles of equipment, power supply, water supply and sewage treatment systems of motor vehicle washing station projects; 3. The construction, acceptance, and operation, maintenance and safety of motor vehicle washing stations. This code is managed by the Shanghai Municipal Environmental Sanitation Administration, the technical unit responsible for urban environmental sanitation standards of the Ministry of Construction, and is authorized to be interpreted by the main editor. The main editor of this code is: Tianjin Environmental Sanitation Engineering Design Institute. (Address: No. 233, Nanjing Road, Heping District, Tianjin: Postal Code: 300052). The participating units of this code are: Wuhan Environmental Sanitation Science Research Institute. The main drafters of this code are: Liu Boqun, Yang, Wu Jianping
Lu Zhengkai
Mu Huichuan
Engineering Construction Standard Full Text Information System
Feng Qilin
Zhang Desheng
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Station type and site:
General layout design
Architectural design
General provisions
4.2 Architectural design of cleaning room and car wash station
4.3 Architectural design of water treatment system
4.4 Architectural design of control room
Cleaning equipment and power supply and distribution system
General provisions
5.2 Cleaning equipment
5.3 Power supply Water pipelines…
5.4 Power supply and distribution system
Water supply, drainage and sewage treatment system
6.1 Water supply system…
6.2 Drainage system and sewage treatment system
Construction and acceptance
7.1 Construction
7.2 Acceptance
8 Operation, maintenance and safety
Appendix A: Test items and test methods for the quality of car wash wastewater in motor vehicle washing stations
Terms used in this regulation
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Engineering construction standard full text information system
1.0.1 This regulation is formulated to make the construction, construction, operation, maintenance and management of motor vehicle washing station projects practical, economical, safe and reliable. 1.0.2 This regulation applies to new construction projects of urban motor vehicle washing stations. 1.0.3 In addition to complying with this regulation, the construction of motor vehicle washing stations shall also comply with the provisions of the relevant national mandatory standards in force. Engineering Construction Standards Full-text Information System
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Station Type and Site
2.0.1 Motor vehicle washing stations are divided into small and large types according to their daily car washing capacity: 1. Small ones are those with a daily car washing volume of less than or equal to 500 vehicles. 2. Large ones are those with a daily car washing volume of more than 500 vehicles. 2.0.2 The site selection of motor vehicle washing stations shall comply with the following provisions: 1. It must comply with the requirements of the overall urban construction plan. 2. It must comply with the requirements of the urban appearance and environmental sanitation industry plan. 3. It must have the necessary power and water sources. 4. Convenient transportation, and vehicles should be convenient to enter and exit. 5. It should combine the long-term and short-term, have sufficient space for short-term construction, and leave room for development.
6. When a city builds or renovates parking lots, stations, ports, and airports, motor vehicle washing stations should be uniformly planned and implemented as supporting facilities for the city's appearance and environmental sanitation. 7. Small motor vehicle washing stations can be attached to garbage transfer stations, parking lots, gas stations and other facilities on the premise of meeting this regulation. 8. Large motor vehicle washing stations should be built on the side of the city's approach to the suburbs. 2
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3 Master Plan Design
3.0.1 The master plan design of motor vehicle washing stations shall comply with the following provisions: 1. The master plan layout is compact, the terrain is used reasonably, and the land and investment are saved. 2. The layout is reasonable, the divisions are clear, the process is convenient, and the use is convenient, which meets the use functions of the washing station.
3. The water supply and drainage and water treatment systems should be reasonably laid out. 4. Motor vehicle washing stations should have sludge and waste oil disposal sites and facilities. 3.0.2 The entrance and exit of a motor vehicle washing station shall comply with the following provisions: 1. It shall comply with the requirements of urban planning and traffic management. 2. A certain length of ramp shall be set.
3. The entrance and exit ramps should not be orthogonal to the main road. 4. The entrance and exit of a motor vehicle washing station shall meet the driver's sight requirements and shall be marked with eye-catching signs.
5. At the entrance of a large motor vehicle washing station, parking spaces for waiting vehicles shall be set according to the difference between the peak flow of motor vehicles entering the city and the washing capacity. 3.0.3 A roadway with a width of not less than 4m and running through the entire station and a sidewalk with a width of not less than 1.5m shall be set up in a large motor vehicle washing station. 3.0.4 The layout of the buildings (structures) of a motor vehicle washing station shall comply with the following provisions: 1. The buildings (structures) of the water treatment system shall be arranged according to the principles of saving investment, reducing land occupation, convenient use, and shortening pipelines. 2. Mud and sand drying beds and waste oil (residue) storage yards shall be arranged in places with convenient transportation to the outside world.
3. Offices and auxiliary rooms should be separated from the car wash work area to avoid mutual interference. 3
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4Architectural Design
4.1General Provisions
4.1.1 The motor vehicle washing station shall consist of buildings (structures) such as the washing room, car washing platform, water treatment system and control room. Various types of buildings (structures) shall be increased, decreased or combined according to the different scales and use requirements of the washing station.
4.2Architectural Design of Washing Rooms and Car Washing Platforms
4.2.1 The design of the washing room of a small motor vehicle washing station shall comply with the following provisions: 1. The washing equipment should be located indoors.
2. The net height in the washing room shall not be less than 4m. bZxz.net
3. The width of the door for large vehicles entering and exiting the washing room should not be less than 4m, and the width of the door for small vehicles entering and exiting should not be less than 3m. 4. The washing room should be equipped with an inner wall skirt, the height of which should not be less than 1.5m, and waterproof and easy-to-clean materials should be used.
5. The width of the pedestrian passage in the washing room should be greater than 0.8m. 4.2.2 When it is difficult to set up the washing equipment of a large motor vehicle washing station indoors, it can be set up outdoors. A washing platform and a retaining wall must be built for outdoor car washing. 4.2.3 The washing platform and retaining wall should comply with the following regulations: 1. The height of the washing platform shall not be less than 0.15m. 2. The height of the retaining wall shall not be less than 2.1m. 4.2.4 The design load of the floor of the washing room and the washing platform shall be determined according to the type of vehicle being washed, and shall not be less than Class 15 of the automobile.
4.3 Architectural design of water treatment system
4.3.1 The water treatment system should be composed of buildings (structures) such as grease trap, grit trap, clarifier, clear water tank, 4
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Engineering Construction Standard Full Text Information System
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The water supply pump room and the water supply pump room should be selected and set according to the scale of the washing station, the washing process and the actual needs.
4.3.2 The grease trap should be equipped with oil and slag separation fence. 4.3.3 The grit trap should preferably adopt hydraulic cyclone sedimentation; when hydraulic cyclone sedimentation is adopted, gas-water separation well and sand discharge well should be set, the sedimentation time should not be less than 10min, and the water flow rising speed in the tank should be less than 6mm/s.
4.3.4 The clarifier should be equipped with mud and sand removal facilities. 4.3.5 When using the sewage recycling process, a clear water tank must be built, and its volume must be greater than the maximum water consumption of 2h.
4.3.6 The motor vehicle washing station must have a concrete structure of sludge drying bed, which should have good drainage and sewage collection facilities, and it is strictly forbidden to pollute the groundwater and the surrounding environment.
The concrete strength grade of the reinforced concrete structure should be greater than or equal to C20, the impermeability grade should be greater than or equal to P6, and the thickness of the steel protection layer should be greater than or equal to 50mm.
Safety protection facilities must be installed in the sedimentation tank and clear water tank. 4.4 Architectural design of the control room
4.4.1 The control system can be designed as partition and segment control, and the large motor vehicle washing station should be designed as centralized control.
4.4.2 The control room of a large motor vehicle washing station shall comply with the following regulations: 1. The net height in the control room shall not be less than 2.5m. 2. The working area should be observable.
3. It should be well ventilated, well lit, and have low vibration. 5
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Cleaning Equipment and Power Supply and Distribution System
5.1 General Provisions
5.1.1 Cleaning equipment shall include flushing device, scrubbing device and drying (blowing) device. The above devices shall be determined according to the cleaning process and may be set up individually or in combination. 5.2 Cleaning Equipment
5.2.1 The start, operation and stop of the cleaning equipment and its working parts shall be controlled automatically.
5.2.2 The allowable deviation of the time for the automatic control device to start or shut down after the vehicle arrives shall be ±2s.
5.2.3 The cleaning equipment shall have the function of cleaning all parts of the vehicle. 5.2.4 The bristles of the scrubbing device shall be made of soft and wear-resistant materials to prevent scratches on the vehicle. 5.2.5 When washing the chassis and wheels of a vehicle, a water pressure of 0.8-1.0MPa should be used; when washing the carriage, a water pressure of 0.6-0.8MPa should be used; and when brushing the carriage, a water pressure of 0.2-0.3MPa should be used.
The parts and fasteners of the cleaning equipment should be made of rust-proof materials or treated with rust-proof treatment. 5.3 Water supply pipelines
5.3.1 The water supply pipelines should be made of carbon steel pipes, and their pressure bearing capacity must reach 1.3 times the working pressure.
5.3.2 In addition to the main valves that should be installed in the main pipelines, each branch pipeline should also be equipped with branch valves.
5.3.3 The water supply pipeline must be equipped with a pressure regulating and unloading valve. 5.3.4 The water supply pipeline should be equipped with an emptying valve at the lowest position. 6
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Engineering Construction Standard Full Text Information System
5.3.5 The horizontal pipeline should have a slope of 2%~5% towards the drain valve. 5.3.6 For pipelines buried underground, except for the flange connection at the valve installation, other interfaces should be welded.
5.3.7 The valves and interface flanges of the pipeline should be installed in the valve well. 5.3.8 The depth of the underground pipeline must be below 0.3m of the local permafrost line. 5.4 Power supply and distribution system
5.4.1 The power load of the motor vehicle washing station should be Class III load. 5.4.2 The electrical equipment of the motor vehicle washing station should be three-phase electrical equipment. When single-phase or two-phase electrical equipment is used, the power load should be evenly distributed in the three-phase line. 5.4.3 The car wash work area of a motor vehicle washing station is located in a humid place, and its low-voltage distribution line must be installed with a leakage protection device, and the upper and lower levels of the leakage protection device must cooperate well. 5.4.4 The electrical equipment in the car wash work area of a motor vehicle washing station should use a safe voltage, and the line supplying power to the work area must use a copper core cable with an insulation level of 500V and reinforced insulation. Mobile electrical equipment can use a 12V voltage, non-mobile electrical equipment can use a 24V voltage, and electrical equipment with a shell protection level not less than IP55 should be used. Electrical equipment with non-safe voltage should be placed outside the car wash work area. 5.4.5 In the car wash work area of a motor vehicle washing station, the live parts of the safety voltage circuit are strictly prohibited from being connected to the ground, and are strictly prohibited from being connected to the live parts of other circuits or protective lines. The metal shells of the non-live parts of electrical equipment should be connected to the same potential. 5.4.6 The fire-fighting power lines of large motor vehicle washing stations must be separated from the cleaning power lines and living power lines: Fire-fighting power equipment should use dedicated power supply lines, which should be protected by metal pipes and concealed in non-combustible structures. 5.4.7 The thickness of the non-combustible protective layer should not be less than 30mm. When it must be laid openly, fire protection measures should be taken on the metal pipes. 5.4.8 The illumination of indoor and outdoor lighting in the car washing work area and living area of the motor vehicle washing station shall comply with the following regulations:
1. Indoor general lighting should not be less than 501x. 2. Outdoor work area lighting should not be less than 201x. 3. Outdoor living area lighting should not be less than 0.51x. 7
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5.3.2 In addition to the main valve, each branch pipe should also be equipped with a branch valve.
5.3.3 The water supply pipe must be equipped with a pressure regulating and unloading valve. 5.3.4 The water supply pipe should be equipped with an emptying valve at the lowest position. 6
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Engineering Construction Standard Full Text Information System
5.3.5 The horizontal pipeline should have a slope of 2%~5% towards the emptying valve. 5.3.6 For pipelines buried underground, except for the flange connection at the valve installation, other interfaces should be welded.
5.3.7 The valves and interface flanges of the pipeline should be installed in the valve well. 5.3.8 The depth of the pipeline buried underground must be below 0.3m of the local permafrost line. 5.4 Power supply and distribution system
5.4.1 The power load of the motor vehicle washing station should be Class III load. 5.4.2 The electrical equipment of the motor vehicle washing station should be three-phase electrical equipment. When single-phase or two-phase electrical equipment is used, the power load should be evenly distributed in the three-phase line. 5.4.3 The car washing work area of the motor vehicle washing station is in a humid place. Its low-voltage distribution line must be installed with a leakage protection device, and the upper and lower levels of the leakage protection device must be coordinated. 5.4.4 The electrical equipment in the car washing work area of the motor vehicle washing station should use a safe voltage. The power supply line to the work area must use a copper core cable with an insulation level of 500V and reinforced insulation. Mobile electrical equipment can use 12V voltage, non-mobile electrical equipment can use 24V voltage, and use electrical equipment with a shell protection level not less than IP55. Electrical equipment with non-safe voltage should be placed outside the car washing work area. 5.4.5 In the car wash work area of a motor vehicle wash station, the live parts of the safety voltage circuit are strictly prohibited from being connected to the ground, and are strictly prohibited from being connected to the live parts of other circuits or protective wires. The metal shells of the non-live parts of the electrical equipment should be connected to the same potential. 5.4.6 The fire protection power lines of large motor vehicle wash stations must be separated from the cleaning power and living power lines: fire protection equipment should use a dedicated power supply line, which should be protected by a metal pipe and concealed in the non-combustible structure. 5.4.7 The thickness of the non-combustible protective layer should not be less than 30mm. When it must be laid openly, fire protection measures should be taken on the metal pipe. 5.4.8 The illumination of indoor and outdoor lighting in the car wash work area and living area of a motor vehicle wash station should comply with the following regulations:
1. Indoor general lighting should not be less than 501x. 2. Outdoor work area lighting should not be less than 201x. 3. Outdoor living area lighting should not be less than 0.51x. 7
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5.3.2 In addition to the main valve, each branch pipe should also be equipped with a branch valve.
5.3.3 The water supply pipe must be equipped with a pressure regulating and unloading valve. 5.3.4 The water supply pipe should be equipped with an emptying valve at the lowest position. 6
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Engineering Construction Standard Full Text Information System
5.3.5 The horizontal pipeline should have a slope of 2%~5% towards the emptying valve. 5.3.6 For pipelines buried underground, except for the flange connection at the valve installation, other interfaces should be welded.
5.3.7 The valves and interface flanges of the pipeline should be installed in the valve well. 5.3.8 The depth of the pipeline buried underground must be below 0.3m of the local permafrost line. 5.4 Power supply and distribution system
5.4.1 The power load of the motor vehicle washing station should be Class III load. 5.4.2 The electrical equipment of the motor vehicle washing station should be three-phase electrical equipment. When single-phase or two-phase electrical equipment is used, the power load should be evenly distributed in the three-phase line. 5.4.3 The car washing work area of the motor vehicle washing station is in a humid place. Its low-voltage distribution line must be installed with a leakage protection device, and the upper and lower levels of the leakage protection device must be coordinated. 5.4.4 The electrical equipment in the car washing work area of the motor vehicle washing station should use a safe voltage. The power supply line to the work area must use a copper core cable with an insulation level of 500V and reinforced insulation. Mobile electrical equipment can use 12V voltage, non-mobile electrical equipment can use 24V voltage, and use electrical equipment with a shell protection level not less than IP55. Electrical equipment with non-safe voltage should be placed outside the car washing work area. 5.4.5 In the car wash work area of a motor vehicle wash station, the live parts of the safety voltage circuit are strictly prohibited from being connected to the ground, and are strictly prohibited from being connected to the live parts of other circuits or protective wires. The metal shells of the non-live parts of the electrical equipment should be connected to the same potential. 5.4.6 The fire protection power lines of large motor vehicle wash stations must be separated from the cleaning power and living power lines: fire protection equipment should use a dedicated power supply line, which should be protected by a metal pipe and concealed in the non-combustible structure. 5.4.7 The thickness of the non-combustible protective layer should not be less than 30mm. When it must be laid openly, fire protection measures should be taken on the metal pipe. 5.4.8 The illumination of indoor and outdoor lighting in the car wash work area and living area of a motor vehicle wash station should comply with the following regulations:
1. Indoor general lighting should not be less than 501x. 2. Outdoor work area lighting should not be less than 201x. 3. Outdoor living area lighting should not be less than 0.51x. 7
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