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- Phone：0086-13705113637
- Tell：0086-0515-88809180
- Fax：0086-0515-88809181
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- Address：No. 18, Rongguang Road, National High-tech Park, Yancheng City, Jiangsu Province
Whether the filter is installed in the freezer inlet is estimated to be very doubtful. Below, Jin achievements to introduce to you the reasons for installing filters and not installing filters in the freezer, generally have the following points:
First, the reason why the freezer does not set the filter is as follows:
1. General debris can pass through the freezer without causing a major impact.
2. The filter has been set in front of the pump.
3. In general, the pipeline from the pump to the freezer is relatively short.
4. The horizontal pipe of the chilled water pipe at the equipment is very short, and the filter is not easy to install.
5. The filter cannot be installed on the riser.
The feedback without the filter said that the copper tube of the equipment was damaged by the welding slag, but the valve on the inlet pipe of the freezer was completely blocked in less than an hour, and the inspection was carried out, and the slag, iron filings and other debris were inside. There are. Therefore, it is recommended to consider setting the filter. Don't think that the filter in front of the pump can make the whole system safe and worry-free.
Second, the freezer installation filter has the following points:
1. Generally speaking, the flow of water in the freezer is very disturbed, and the impact on the copper tube in the equipment is relatively large, especially for the full-liquid type equipment, which has a greater influence on the copper tube and is easy to block some copper tubes.
2, close to the freezer is a large diameter, it is easier to leave debris in the construction equipment, the filter in front of the pump can filter a part of impurities, but a large part of the impurities between the pump and the equipment will be Through the device.
3. In many cases, the pump and chilled water are installed in a machine room. The distance from the freezer to the water inlet of the pump is very close, but the distance from the water outlet of the pump to the inlet of the freezing equipment is very far, and this part of the tube is almost occupied. 90% of the entire piping system.
4. The filter can be installed on the riser.
5. It is a misunderstanding that the filter cannot be installed on the riser. If the flow of water flows from top to bottom, the filter can be installed on the riser. On the contrary, a reverse flow filter should be installed, and a better method is A pressure gauge is placed before and after the filter for easy observation.
6. From the perspective of regulatory requirements:
8.5.22: “Code for Design of Heating, Ventilation and Air Conditioning in Civil Buildings” (GB50736-2012): “Filters or decontamination should be provided on the inlet pipes of equipment such as chillers or heat exchangers, circulating water pumps and make-up pumps. "".
“Decontamination requirements for equipment inlets. Equipment inlets need to be decontaminated. The location of decontamination equipment should be determined according to the size of the system and the needs of the equipment. For example, if the system is large and the pipeline that produces dirt is long, except for the system cold and heat source, water pump and other equipment. Outside the entrance, decontamination devices should be installed as needed before each sub-loop or end equipment and self-control valve, but devices with close distances may not be connected in series to decontamination devices.
Article 2 of 7.7.3 of "Design Code for Heating, Ventilation and Air Conditioning" (GB50019-2003), "Code for Design of Heating, Ventilation and Air Conditioning for Civil Buildings" (GB 50736-2012) is clearly defined in Article 8.6.4. A filter or decontaminator should be provided on the inlet pipe of the pump or chiller."
“In order to avoid foreign matter such as welding slag, welding rods, metal chips, sand and gravel, organic fabrics and cooling tower packing generated during operation, enter the condenser and evaporator, it should be set before the chiller cooling water and chilled water inlet. Filter the filter with a pore size of no more than 3mm. For the design of the circulating water pump at the condenser and evaporator inlet, the filter can be set at the inlet of the circulating water pump"
Jiangsu Jincheng Air Conditioning Engineering Co., Ltd. focuses on:
Industrial air conditioners, chemical fiber industrial air conditioners, chemical fiber industry refrigeration, textile industry air conditioners, clean room refrigeration, ventilation ducts, cooling towers, refrigeration machines and other air conditioning units and accessories.
If you want to know more about the product, please contact: Mr. Song 13705113637 Website: http://m.pc20080808.cn/
