Full-sealed type refrigerant liquid pump structure and method for using same in high-rise building refrigerating system
A refrigerant, fully sealed technology, used in refrigeration and liquefaction, refrigerators, refrigeration components, etc., can solve problems such as leakage, sharp increase in use costs, and unfavorable energy saving in refrigeration systems.
Inactive Publication Date: 2017-02-15
梁嘉麟
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Problems solved by technology
[0003] ——Since the leakage problem of the liquid pump has not been solved, no matter how large the water leakage is when the water pump is used, it will basically not affect the use cost of the refrigeration system, although the intermediate link of using water as an intermediate transition medium to assist in the transfer of cooling capacity is added However, the reality has proved that this is still affordable; and when the refrigerant pump is used, it leaks very expensive refrigerant for air conditioning and high-temperature refrigeration, which causes a dramatic increase in the cost of use. The increase is unbearable for people, although this (refrigerant liquid pump) can allow the refrigerant to cool the air in the room through direct evaporation and heat absorption in the evaporator (reducing an intermediate link of water cooling transfer), It is beneficial to energy saving. However, compared with the harm caused by refrigerant leakage, the benefits it brings outweigh the benefits. Thermal energy transfer
[0004] At present, in the low-temperature refrigeration system of high-rise cold storage, the conventional ammonia pump (refrigerant can leak from the inside of the pump body to the atmospheric space) as the main body of the ammonia refrigerant pressurized distribution device has been successfully used in the low-temperature refrigeration system of high-rise cold storage. The refrigerant is directly evaporated and refrigerated in the evaporator; its disadvantage is that the leakage of ammonia refrigerant liquid from the inside of the ammonia pump to the atmospheric space is relatively large, and it is inevitable to regularly replenish the ammonia refrigerant to the refrigeration system. Even so, the advantages outweigh the disadvantages, because the cost of ammonia refrigerant is extremely low, and water cannot be used as a medium in places below 0°C; if the refrigerant ammonia (about 0.2 yuan per kilogram) is changed to Freon F12 (per kilogram more than 50 yuan) or its homogeneous substitutes, which will inevitably increase the daily operating cost of the cold storage hundreds of times; for this reason, the vast majority of low-temperature cold storages that use Freon or its homogeneous substitutes as refrigerants are It is a small single-layer (no refrigerant liquid pump is needed at this time), and the refrigerant used in the medium and large high-rise cold storages must be ammonia liquid due to the use of ammonia pumps for liquid supply.
[0005] Generally speaking, for the leakage of liquid pumps, the requirements of the national standard (mainly for water) are to allow leakage, but the leakage is not allowed to exceed the standard; however, for refrigerant pumps, water pumps that meet the requirements of the above national standards are still Cannot meet the daily use requirements of using expensive non-ammonia refrigerants such as Freon (refrigerants that replace banned Freon are more expensive)
[0006] Obviously, the prerequisite for solving the above problems is: the leakage of the liquid pump, that is, the refrigerant liquid pump must be solved. Secondly, there is another problem of technical reliability in the refrigeration system after the refrigerant liquid pump is adopted.
Method used
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[0018] In conjunction with the schematic diagram of the accompanying drawings of the present invention, in order to realize the above-mentioned purpose of the present invention, it is proposed to adopt the following technologies:
[0019] The fully sealed refrigerant liquid pump B in the present invention includes structurally:
[0020] The pump body 2 and the drive motor composed of the motor rotor 4 and the stator winding 5, the pump body 2 and the drive motor composed of the motor rotor 4 and the stator winding 5 are sealed in a sealed housing 7, and, The sealing shell 7 constituting the refrigerant liquid pump B is also provided with a pipe interface:
[0021] Gas pressure balance pipe 3 and liquid pressure balance pipe 3' and low-pressure liquid inlet pipe 1 and high-pressure liquid outlet pipe 8;
[0022] The pipe interface of the gas pressure balance pipe 3 is connected to the upper part of the cavity space formed between the sealed casing 7, the pump body 2 and the dr...
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Disclosed are a full-sealed type refrigerant liquid pump structure and a method for using the same in a high-rise building refrigerating system. The using method (mounting method) is mainly implemented in the mode that a full-sealed type seal shell (7) obtained through a metal welding process and a pair of pipes composed of the gas pressure equalizing pipe (3) and the liquid pressure equalizing pipe (3') and connected with a low-pressure liquid storage barrel device (D) are additionally arranged on a combined structure including a pump body (2) and a pulling motor thereof so that normal work of the refrigerating system can be ensured. According to the full-sealed type refrigerant liquid pump structure and the method for using the same in the high-rise building refrigerating system, energy can be saved by about 30% as for daily operation cost; if a water-free energy transmission mode is also taken into consideration in a high-rise building heating system, a water-free energy transmission type high-rise building central refrigerating and heating air-conditioning system should be easily formed; and in addition, the problem that refrigerant leaks into outside space is avoided.
Description
technical field [0001] The present invention relates to a fully sealed refrigerant liquid pump structure that will never leak refrigerant molecules into the atmosphere and its use in the refrigeration system of high-rise buildings to allow the refrigerant to evaporate and absorb heat for cooling (relying on the latent heat of the phase change of the refrigerant for direct cooling) To replace the water medium to transport cold energy and absorb heat for refrigeration (relying on water medium non-phase-transition sensible heat indirect delivery of cold), the method of greatly saving energy, that is, the method of connecting and using the relevant pipelines of the refrigeration system. Background technique [0002] At present, in the refrigeration and air-conditioning systems of high-rise or super high-rise buildings, due to the pressure formed by the compressor in the refrigeration system, it is difficult to press the low-pressure liquid refrigerant up, and it usually relies on...
Claims
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IPC IPC(8): F04B15/08F04B17/03F25B41/00F25B41/40
CPCF04B15/08F04B17/03F25B41/00F25B2400/19
Inventor梁嘉麟
Owner梁嘉麟