What are the requirements for refrigeration compressor installation

What are the requirements for refrigeration compressor installation

What are the general requirements for the installation of refrigeration compressors? 1.Collect the original materials and technical documents of the refrigeration device and system design, and be familiar with all the contents 2. Check the completeness of all the approach equipment, the number of accessories and other details, complete with all kinds of installation tools, correction horns and other materials.

   3. According to the requirements of the construction drawings, carry out unpacking inventory and appearance inspection of the refrigeration compressor unit (such as packaging, equipment name, specification model, inspection certificate, instruction manual, distribution book and equipment surface, etc.), and make inspection records.

   4. For the refrigeration compressor units shipped from the whole machine, they must be installed within the specified warranty period, and the oil seal and air seal should be good, no rust, and the inside cannot be removed and washed. When the anti-rust shelf life is exceeded or there are obvious defects, the unit should be disassembled and cleaned, and refer to the factory data and technical documents of the refrigeration unit.

5.When installing the refrigeration compressor unit, it should be leveled and adjusted on the base surface of the foundation and base, and those with vibration reduction requirements should be installed according to the design requirements. Refrigeration compressor installation conditions   1. Choose a wide and well-lit place to facilitate operation and maintenance.

  2. The relative humidity of the air should be low, the dust is little, the air is clean and well ventilated.

  3. The ambient temperature must be lower than 40℃.

  4. If the factory environment is poor and dusty, pre-filter equipment must be installed.   5. Reserve the passageway, those who have the conditions can install the crane to facilitate maintenance.

  6. Reserve space for maintenance, the distance between the compressor and the wall must be at least 70 cm.

  7. The distance between the compressor and the top space is at least one meter. Notes on refrigeration compressors    piping, foundation and cooling system piping precautions:

   1. When piping in the main pipeline, the pipeline must have an inclination of 1° to 2° to facilitate the discharge of condensate in the pipeline.

   2. The pressure drop of the piping pipeline should not exceed 5% of the set pressure of the compressor, so it is better to use a larger pipe diameter for piping.

   3. The branch pipeline must be connected from the top of the main pipeline to avoid the condensation water in the pipeline from flowing into the air-consuming equipment. The compressor air outlet pipeline should preferably have a one-way valve.

   4. When several compressors are installed in series, a ball valve or automatic drain valve must be installed at the end of the main pipe to facilitate the discharge of condensate.

   5. The main pipeline should not be arbitrarily reduced. If you must reduce or enlarge the pipeline, you must use a reducer, otherwise there will be mixed flow at the joint, resulting in a large pressure loss and affecting the service life of the pipeline.

   6. If there are purification buffer facilities such as air tank and dryer after the compressor, the ideal piping should be compressor + air tank + front filter + dryer + rear filter + fine filter. In this way, the gas storage tank can filter out part of the condensed water, and the gas storage tank also has the function of reducing the temperature of the gas exhaust. The air with lower temperature and less water content will enter the dryer to reduce the load of the dryer or filter.

7. If the air consumption of the system is large and the time is short, the instantaneous air consumption changes greatly, it is advisable to install an air storage tank as a buffer (the capacity should be greater than or equal to 20% of the maximum instantaneous air volume), which can be reduced The number of frequent loading or unloading of the compressor unit, reducing the number of control element actions, has a great benefit in maintaining the reliability of the compressor operation. In general, a gas storage tank with a capacity of 20% of the displacement can be selected.

   8. For compressed air with a system pressure of less than 1.5MPa, the flow velocity in the delivery pipe must be less than 15m/sec to avoid excessive pressure drop.

   9. Use elbows and various valves in the pipeline as much as possible to reduce pressure loss.

   10. The ideal piping is that the main pipe surrounds the entire plant, so that you can get double compressed air at any location. For example, when the gas consumption of a certain branch increases suddenly, the pressure drop can be reduced. And configure the appropriate valve on the ring main line, so as to repair and cut off.

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