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CN-121993405-A - Compressor and heat exchange device

CN121993405ACN 121993405 ACN121993405 ACN 121993405ACN-121993405-A

Abstract

The invention provides a compressor and heat exchange equipment, wherein the compressor comprises a shell, a first air cylinder and a second air cylinder, a first air suction port, a second air suction port and an air supplementing port are formed on the shell, the first air cylinder and the second air cylinder are arranged in the shell, the volume of the first air cylinder is smaller than that of the second air cylinder, a first compression cavity is formed in the first air cylinder and communicated with the first air suction port, a second compression cavity is formed in the second air cylinder and communicated with the second air suction port and the air supplementing port, an air supplementing channel is formed between the air supplementing port and the second compression cavity, the sectional area S1 of the air supplementing channel and the area S2 of the first air suction port are met, and S1/S2 is more than or equal to 0.05 and less than or equal to 1. The compressor and the heat exchange equipment provided by the invention can solve the problem that the use performance is affected due to the fact that the air supplementing effect of the compressor in the prior art is poor.

Inventors

  • HU YUSHENG
  • WEI HUIJUN
  • REN LIPING
  • FU ZHENG
  • SU YONGQIANG
  • YAN WEIHAO

Assignees

  • 珠海格力电器股份有限公司

Dates

Publication Date
20260508
Application Date
20241107

Claims (14)

  1. 1. A kind of compressor, in which the compressor is composed of a casing, characterized by comprising the following steps: A housing (10), wherein the housing (10) is provided with a first air suction port (110), a second air suction port (120) and an air supplementing port (130); a first cylinder (20) and a second cylinder (30) disposed inside the housing (10), the first cylinder (20) having a volume smaller than the second cylinder (30); The inside of first cylinder (20) is formed with first compression chamber (210), first compression chamber (210) with first induction port (110) intercommunication, the inside of second cylinder (30) is formed with second compression chamber (310), second compression chamber (310) with second induction port (120) and air-compensating port (130) intercommunication, air-compensating port (130) with be formed with the air-compensating channel between second compression chamber (310), the sectional area S1 of air-compensating channel and the area S2 of first induction port (110) satisfy, are 0.05 be less than or equal to S1/S2 be less than or equal to 1.
  2. 2. The compressor of claim 1, wherein the suction pressure of the first suction port (110) is greater than the suction pressure at the second suction port (120).
  3. 3. The compressor of claim 1, wherein the suction air pressure at the air supply port (130) is the same as the suction air pressure at the first suction port (110).
  4. 4. A compressor according to claim 3, wherein the sectional area S1 of the air-supplementing passage and the area S2 of the first air-intake port (110) satisfy 0.2< S1/S2≤0.3.
  5. 5. The compressor of claim 1, wherein, The first cylinder (20) is disposed at the bottom end side of the second cylinder (30) along the height direction of the housing (10), and/or The volume V2 of the first cylinder (20) is 80% or less of the volume V1 of the second cylinder (30).
  6. 6. The compressor of claim 1, wherein, An air passage (810) is formed in the second cylinder body of the second cylinder (30), one end of the air passage (810) is communicated with the air supplementing port (130), and the other end of the air passage (810) is communicated with the second compression cavity (310) of the second cylinder (30).
  7. 7. The compressor according to claim 1, wherein a plurality of second cylinders (30) are provided, the plurality of second cylinders (30) are provided along the height direction of the housing (10), the compressor further comprises a partition plate (80), the partition plate (80) is provided between two adjacent second cylinders (30), the partition plate (80) is provided with an air passing channel (810), one end of the air passing channel (810) is communicated with the air supplementing port (130), and the other ends of the air passing channels (810) are respectively communicated with the second compression cavities (310) of two adjacent second cylinders (30).
  8. 8. The compressor according to claim 7, wherein the second cylinder (30) comprises: A second cylinder; The second rollers are movably arranged in the second cylinder body to form a second compression cavity (310), one end, facing each other, of each two adjacent second cylinder bodies is abutted to the same partition plate (80), and the air passing channel (810) on the partition plate (80) is communicated with the second compression cavity (310).
  9. 9. The compressor according to claim 1, characterized in that the compressor further comprises: A first bearing (50); a second bearing (60), a first cavity is formed between the first bearing (50) and the second bearing (60), and at least one second cylinder (30) is arranged in the first cavity; The cover plate (70), the cover plate (70) is arranged on one side, far away from the first bearing (50), of the second bearing (60), a second cavity is formed between the cover plate (70) and the second bearing (60), the first cavity and the second cavity are arranged in parallel, and the first cylinder (20) is arranged in the second cavity.
  10. 10. The compressor according to any one of claims 1 to 9, further comprising a crankshaft (40), the crankshaft (40) having a first eccentric portion provided inside the first cylinder (20) and a second eccentric portion provided inside the second cylinder (30), the second eccentric portion being provided in one-to-one correspondence with the second cylinder (30), the eccentric directions of the first and second eccentric portions being different.
  11. 11. The compressor of claim 10, wherein an outer periphery of the first eccentric portion does not exceed an outer periphery of a main body portion of the crankshaft (40).
  12. 12. A heat exchange apparatus, characterized in that it comprises the compressor of any one of claims 1 to 11, said heat exchange apparatus further comprising: a liquid separator (90), wherein the liquid separator (90) is communicated with a second air suction port (120) on the compressor; The flash evaporator (1300), the gas vent (140) of flash evaporator (1300) respectively with first induction port (110) on the compressor with make-up gas port (130) intercommunication, the liquid discharge port of flash evaporator (1300) with knockout (90) intercommunication, be equipped with gas vent (140) on casing (10) of compressor, gas vent (140) with the import intercommunication of flash evaporator (1300).
  13. 13. The heat exchange device according to claim 12, further comprising a heat exchanger (1100), wherein the heat exchanger (1100) is provided on a line between the exhaust port (140) and the flash evaporator (1300), and wherein the heat exchanger (1100) is provided on a line between the flash evaporator (1300) and the liquid separator (90).
  14. 14. The heat exchange device of claim 12, further comprising: A throttle valve (1200), the throttle valve (1200) is arranged on a pipeline between the exhaust port (140) and the flash evaporator (1300), and the throttle valve (1200) is arranged on a pipeline between the flash evaporator (1300) and the liquid separator (90); and the electromagnetic valve (1400) is arranged on a connecting pipeline between the exhaust port (140) and the air supplementing port (130).

Description

Compressor and heat exchange device Technical Field The invention relates to the technical field related to mechanical equipment, in particular to a compressor and heat exchange equipment. Background With the development of air conditioning systems, it is expected that the compressor is coupled with more functions and technologies, for example, in order to meet more capacity requirements, the prior art has a single-cylinder compressor and a multi-cylinder compressor, for example, in a common single-stage air conditioning system, the heating capacity of the air conditioning system is greatly attenuated and cannot meet the heating requirements of users under the low temperature condition, and in order to solve the problems, the air supplementing and enthalpy increasing application to the compressor and the refrigerating system can effectively improve the heating capacity and the energy efficiency. The enthalpy increasing effect is affected by the air supplementing amount of the compressor, namely, the air supplementing amount is too small, the amount of gas generated by the flash evaporator needs to be reduced, the medium pressure is increased, the saturated liquid enthalpy value in the flash evaporator is increased, the evaporation side enthalpy difference is reduced, and the refrigerating capacity is reduced. And the single-stage air supplementing is to supplement air to the air cylinder in compression, and the air supplementing pressure is higher than the cavity pressure to smoothly enter the air cylinder, so that the air supplementing enthalpy increasing circulation is formed. The pressure of the air supplementing is generally in the middle of the suction pressure and the exhaust pressure, the pressure of the cavity is rapidly changed in the rotating process of the compressor, the pressure of the cavity can be the same as the pressure of the air supplementing in an extremely short time, and then the pressure of the cavity is higher than the pressure of the air supplementing, so that the air supplementing cannot enter the cavity, the time for entering the cavity is very short, the air supplementing quantity is too small, and the enthalpy increasing effect is poor. Especially in light working conditions, the pressure difference is smaller, the air supplementing pressure is also relatively smaller, the air supplementing time is shorter, and even no air supplementing effect is achieved. Therefore, the working condition application range of the existing single-stage air-supplementing compressor is smaller, especially in light working conditions, and air-supplementing enthalpy can not be basically increased. From the above, the compressor in the prior art has the problem of poor air supplementing effect, which affects the service performance. Disclosure of Invention The invention mainly aims to provide a compressor and heat exchange equipment, which are used for solving the problem that the use performance is affected due to poor air supplementing effect of the compressor in the prior art. In order to achieve the above object, according to one aspect of the present invention, there is provided a compressor including a housing having a first suction port, a second suction port, and a supply port, a first cylinder and a second cylinder provided inside the housing, the first cylinder having a smaller volume than the second cylinder, a first compression chamber formed inside the first cylinder, the first compression chamber being in communication with the first suction port, a second compression chamber formed inside the second cylinder, the second compression chamber being in communication with the second suction port and the supply port, a supply passage formed between the supply port and the second compression chamber, a sectional area S1 of the supply passage and an area S2 of the first suction port being satisfied, 0.05≤S1/S2≤1. Further, the suction pressure of the first suction port is greater than the suction pressure at the second suction port. Further, the suction air pressure at the air supply port is the same as the suction air pressure at the first air suction port. Further, the sectional area of the air supplementing channel is S1, and the area of the first air suction port is S2, wherein S1/S2 is more than 0.2 and less than or equal to 0.3. Further, the first cylinder is disposed at a bottom end side of the second cylinder in a height direction of the housing, and/or a volume V 2 of the first cylinder is 80% or less of a volume V 1 of the second cylinder. Further, an air passage is arranged on the second cylinder body of the second cylinder, one end of the air passage is communicated with the air supplementing port, and the other end of the air passage is communicated with the second compression cavity of the second cylinder. Further, the second cylinder is provided with a plurality of, and a plurality of second cylinders set up along the direction of height of casing, and the compressor still include