The commissioning work for the completion and acceptance of the clean room purification project should be carried out in the following four steps:
Preparations before commissioning of cleaning engineering in clean room.
(2) Single-machine test run of clean room purification project.
(3) Debugging of cleaning engineering in clean room.
(4) Performance test and comprehensive evaluation of clean room.
(1) Preparations before commissioning of cleanroom purification project
1. Organizational preparation for commissioning of cleanroom purification project:
Establish a commissioning group headed by the construction unit (owner) with the participation of the personnel of the design unit, construction unit and supervision unit. The debugging team leads the overall debugging work. The debugging team coordinates all aspects of the relationship. The debugging team provides various soft and hard conditions for the debugging work.
2. Debugging Outline of Cleaning Room Purification Project
Under the leadership and organization of the commissioning team, the commissioning outline is compiled. The debugging outline is a guiding document for debugging work. The contents of the debugging outline include: organizing division of labor, ** material mobilization; debugging projects, debugging methods, debugging instruments; debugging procedures, debugging progress, debugging plan arrangement, etc. The compilation of the debugging outline makes the debuggers clear in thinking, unified in understanding, consistent in pace and orderly in action, and makes the debugging work go smoothly.
3. The quality inspection of clean room construction site.
Under the leadership and organization of the commissioning team, the relevant leaders and technicians of the construction units, design units, construction units and supervision units participate in the comprehensive inspection of the construction site and construction quality. From refrigeration station, heat exchange station, boiler room, transformer and distribution station, air conditioning room to cooling, heating, power supply system, air conditioning purification system and automatic control system. From equipment (refrigerators, boilers, pumps, cooling towers, air conditioners, etc.), accessories (valves, tuyeres, mufflers, etc.), pipelines and pipelines to thermal insulation, equipment foundation, pipeline support and hangers, etc., to conduct a comprehensive inspection of the construction quality. See if there are any discrepancies between construction and design drawings according to the drawings. Find out the unqualified items of construction quality and find out the reasons. It also fills in the "defect list" one by one for quality problems such as construction, processing and installation, puts forward suggestions for rectification, and finishes rectification within a time limit (before formal debugging).
4. Cleaning of air-conditioning equipment and air-conditioning system in clean room purification project:
It is necessary to clean the clean room thoroughly before commissioning. Carry out a serious, comprehensive and thorough cleaning of the floor, wall, ceiling, doors and windows of the clean room (preferably by a professional cleaning company); check, check and test air-conditioning equipment, air-conditioning pipes (air supply pipes, return pipes, fresh air pipes), air-conditioning accessories (cleaners, valves, tuyeres, etc.). Until the requirements for cleanliness are met.
(2) Installation of coarse and medium-effect filters for the first air blowing. On the basis of thorough cleaning, install coarse and medium efficiency filters in the air conditioner. The air-blowing time of the whole purification air-conditioning system is 24-36 hours, which makes the whole system get preliminary purification.
Installation of high efficiency filters. High efficiency filters can be installed after air blowing. Before installing the high efficiency filter, it is required to check the leakage one by one, and plug the leakage of the leakers. Leak detection is carried out on the temporary leak detection platform, and the dust source uses atmospheric dust. Only the qualified high-efficiency filter can be installed, after the installation, the installation seal of the high-efficiency filter can be leaked (scanned by the dust particle counter), so that the installation is qualified.
(4) After qualified leak detection, the second air-blowing of the purified air-conditioning system will be carried out. Air blowing time is 24 hours before commissioning.
5. Preparing test instruments, instruments and tools for cleanroom cleaning engineering
Before debugging, the instruments and instruments used in debugging should be debugged and calibrated. The instruments used include instruments for measuring wind speed, air volume, temperature, relative humidity, pressure difference, noise, vibration, revolution, time, atmospheric pressure and cleanliness.
(2) Preparation of equipment and tools for commissioning. Such as: electrical tools, plumbing tools, metal wrenching tools, fitter tools and climbing ladders. And ask the construction unit to cooperate with electricians, plumbers, metal pullers and fitters.

(3) Preparation of drawings and record forms for debugging and testing.

(2) Single-engine test run of clean room purification project
Single-machine test is to test all the equipment, accessories and other units in the project. The purpose of single engine test is to inspect and assess the installation quality of these equipments and accessories and the quality of the products manufactured. The main contents of single engine test are as follows:
Water and electricity go first. That is to say, first of all, the equipment and system of water supply and power supply are inspected and assessed. Such as pumps, transformers, distribution boxes, switches, etc. To ensure the normal and reliable supply of water and electricity.
Furthermore, it makes a monolithic examination of the cooling equipment (refrigerators, cooling towers, refrigerated water pumps, cooling water, etc.), heating equipment (boilers, heat exchangers, hot water pumps, etc.), air conditioning equipment (surface coolers, heaters, humidifiers, filters, fans, etc.), automatic control equipment, meters, valves and accessories of each system. Nucleus. See if it can meet the design requirements and normal operation. In particular, the rotating equipment such as fans and pumps should be tested to see whether they are running smoothly, whether there is noise and collision and reversal phenomenon; whether the wiring of electrical equipment is correct; whether refrigerators and boilers can meet the design requirements; whether the cooling and dehumidifying capacity of surface coolers in air conditioners, humidifying capacity of humidifiers, etc. should be checked and assessed. If a fault occurs and a problem is found, it should be eliminated immediately.
For large-scale equipment such as refrigerators, boilers, air conditioners, etc. (especially imported equipment), it is better to have on-site guidance from the commissioning personnel of the manufacturer or be responsible for the commissioning of the manufacturer, and then transfer it to the user after normal operation. Single-machine test run is a good preparation for linkage debugging of individual equipment.
(3) Linkage debugging of cleanroom purification project
In general, linkage debugging is divided into two stages, namely, air distribution stage and linkage debugging stage.
1. Air distribution:
Air distribution is to adjust the air supply, return air, fresh air and exhaust volume of each clean room to the design air volume according to the design requirements. Because a clean workshop may have multiple air-conditioning air supply and exhaust systems, or an air-conditioning air supply system has to bear the air supply of multiple clean rooms. Therefore, the air distribution and commissioning work is a heavy workload, long time, patient and meticulous work. The air distribution and commissioning work is also the key work of the whole commissioning work. Standard tuyere method is commonly used in air distribution commissioning.
Standard tuyere method: A clean room may have several, dozens of air conditioning supply and return tuyeres. Because they are interconnected, when adjusting the air volume of one air outlet, the air volume of other air outlets will also change with it. Therefore, the standard tuyere method is adopted.
The so-called standard tuyere method is to open all valves to the maximum before air volume distribution, and find the most disadvantageous tuyere (the smallest tuyere) among all the tuyeres, using this tuyere as the standard tuyere. A monitoring instrument is installed on the standard tuyere to test the change of the air volume of the standard tuyere at any time. Then adjust the air volume of all other tuyeres. Because adjusting the air volume of any air outlet will affect the change of the air volume of the adjusted air outlet; therefore, when adjusting the air volume of any air outlet, the air volume of the standard air outlet at that time should be taken as the reference air volume, so that all the air volume of the adjusted air outlet will change synchronously with the change of the air volume of the standard air outlet.
When a purified air conditioning system is responsible for air conditioning in many clean rooms, the debugging should be carried out from the end of the clean room to the main pipe. First, the relative relationship between the air supply volume of each clean room is adjusted. Then, the total valve of the system is used to adjust the air supply volume of each clean room to the real design. Air supply capacity.
2. Linkage Debugging of Clean Room Purification Project
The linkage debugging is carried out after the adjustment of air flow and the test run of a single engine. Linkage commissioning will purify the air conditioning system and all the systems serving the purified air conditioning system, namely: cooling system (refrigerators, cooling towers, water pumps and all parts of the cooling system), heating system (boilers, water pumps and all parts of the heating system), power supply system (distribution boxes, frequency converters, etc.). All the automatic control systems are put into operation, and the comprehensive performance and linkage performance of each system are evaluated. If necessary, set a certain amount of load artificially in the clean room to check the sensitivity and coordination of temperature and humidity probes, intermediate instruments and actuators; check the accuracy and accuracy of temperature and humidity probes.
Shandong Aide Purification Engineering Co., Ltd. has strong technical strength and construction experience, according to the different needs of clean places, using professional equipment, to form different levels of clean standard space, to create the most suitable production and working environment. At present, it has established close cooperation with many enterprises and is a trustworthy professional purifying project implementer. Wechat Public Number: Aide-188