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CN-117006755-B - Oil separator and air conditioning unit

CN117006755BCN 117006755 BCN117006755 BCN 117006755BCN-117006755-B

Abstract

The invention provides an oil separator and an air conditioning unit. The oil separator comprises a shell, a separation device and an air inlet pipe, wherein a preset separation structure is arranged in the shell, an air inlet and an air outlet are formed in the shell, the separation device is detachably arranged in the shell, the air inlet pipe of the separation device is communicated with the air inlet, and the air outlet of the separation device is communicated with the air outlet through the preset separation structure. According to the oil separator and the air conditioning unit, the separation device is arranged to be of the detachable structure, so that whether the separation device is installed or not can be selected according to different applied air conditioning units, the requirements of the air conditioning units under different working conditions are met, the functions of the oil separator are exerted to the maximum in a limited space, and the application range of the oil separator is enlarged.

Inventors

  • LIN QIANLING
  • WANG TIEQIANG
  • YOU HAOLIANG
  • WANG XIAOYONG

Assignees

  • 珠海格力电器股份有限公司

Dates

Publication Date
20260505
Application Date
20230728

Claims (8)

  1. 1. An oil separator, characterized by comprising: The device comprises a shell (1), wherein a preset separation structure (2) is arranged in the shell (1), and an air inlet (11) and an air outlet (12) are arranged on the shell (1); The separation device (3) is detachably arranged in the shell (1), an air inlet pipe (5) of the separation device (3) is communicated with the air inlet (11), and an air outlet of the separation device (3) is communicated with the air outlet (12) through the preset separation structure (2); the separation device (3) comprises: A housing (31); the baffle plate assembly is arranged in the shell (31), the baffle plate assembly and the inner wall of the shell (31) jointly form a baffling channel, and the air inlet pipe (5) and the air outlet are communicated with the baffling channel; a first filter mechanism (32), the first filter mechanism (32) being disposed within the baffle channel; The baffle assembly comprises a first baffle (33), the interior of the shell (31) is divided into a first cavity and a second cavity by the first baffle (33), a first space is reserved between the first baffle (33) and a bottom plate of the shell (31), the first cavity and the second cavity are communicated through the first space, the air inlet pipe (5) is communicated with the first cavity, the air outlet is communicated with the second cavity, and the first filtering mechanism (32) is arranged in the second cavity; The baffle assembly further comprises a second baffle (34), the second baffle (34) is arranged between the first baffle (33) and the air inlet pipe (5), the second baffle (34) divides the first chamber into an air inlet cavity and a separation cavity, a second space is arranged between the second baffle (34) and a top plate of the shell (31), the air inlet cavity and the separation cavity are communicated through the second space, the air inlet pipe (5) is communicated with the air inlet cavity, and the separation cavity is communicated with the second chamber through the first space; The lower end of the second baffle plate (34) is bent into the air inlet cavity to form an oil baffle plate (35), and the oil baffle plate (35) is arranged in a sealing way with the inner wall of the shell (31); the baffle assembly further includes a baffle (37), the baffle (37) being disposed within the second chamber.
  2. 2. An oil separator according to claim 1, wherein the oil baffle plate (35) is provided with an oil passing hole (36).
  3. 3. The oil separator according to claim 2, wherein the oil passing hole (36) is provided at a portion of the oil baffle plate (35) near the inner wall of the housing (31).
  4. 4. The oil separator according to claim 1, wherein the separation device (3) further comprises a flow equalizing plate (38), the flow equalizing plate (38) is disposed in the second chamber, and the flow equalizing plate (38) is located at a side of the first filter mechanism (32) away from the air outlet.
  5. 5. An oil separator according to claim 1, wherein the bottom plate of the housing (31) is curved in shape, and oil drop through holes (39) are provided at the lowest points of the curved surfaces.
  6. 6. An oil separator according to claim 1, wherein the predetermined separation structure (2) comprises a second filter mechanism arranged between the air outlet (12) and the air outlet.
  7. 7. The oil separator according to claim 1, further comprising a third baffle (4), wherein the air outlet is provided at the top of the separation device (3), and wherein the third baffle (4) is provided between the air outlet and the preset separation structure (2).
  8. 8. An air conditioning unit comprising the oil separator according to any one of claims 1 to 7.

Description

Oil separator and air conditioning unit Technical Field The invention relates to the technical field of oil-gas separation equipment, in particular to an oil separator and an air conditioning unit. Background The oil separator is used as one of four key components of a screw refrigerating unit, and has the function of separating and filtering a high-temperature high-pressure gaseous refrigerant discharged from a compressor from a refrigerating oil mixture in a refrigeration cycle. In actual operation of the unit, the high-temperature and high-pressure gaseous refrigerant discharged by the screw compressor entrains part of compressor frozen oil particles and enters the oil separator. If the part of the refrigeration oil is entrained by the air flow and enters the condenser or enters the evaporator along with the circulating medium to be accumulated, the heat exchange capacity of the two compressors is reduced, the compressor is damaged due to lack of refrigeration oil lubrication, and finally the system cannot continuously and safely run. Therefore, in order to solve the problem of separation of the refrigerating oil, the continuous safe operation of the system is ensured, the oil-gas separation is carried out on the fluid discharged by the compressor by adopting the oil separator, the separated high-purity gaseous refrigerant enters the condenser, and the liquid refrigerating oil returns to the compressor by utilizing the differential pressure effect. In the conventional vertical oil structure shown in fig. 1, after the gaseous refrigerant with oil enters the oil space from the top air inlet and diverges, part of large-particle oil drops flow downwards to the bottom under the action of gravity and enter the oil return area, most of the large-particle oil drops are entrained along with the airflow, impact on the cylinder, part of the oil drops are separated, and the rest of the small-particle oil drops continue to enter the oil space along with the airflow bypassing the cylinder. The gaseous refrigerant flows towards the oil filter screen slightly under the action of gravity and inertia force in the flowing process, the speed of small particle oil drops in the flowing process is gradually reduced, and finally the small particle oil drops are settled to the bottom oil level area. The oil separator has the advantages of simple form, small vibration and the like in the running process of the small-cooling-capacity unit, but has unstable oil content capability and larger fluctuation of air flow when the oil separator is applied to the variable-working-condition unit, so that the oil separator has the problem of narrow application range. Disclosure of Invention In order to solve the technical problem that the oil separator in the prior art cannot meet the requirements of a small-cooling-capacity unit and a variable-working-condition unit at the same time and has a narrow application range, the oil separator and the air conditioning unit which utilize a detachable separating device to select and match according to actual requirements to improve the application range are provided. An oil separator comprising: The device comprises a shell, wherein a preset separation structure is arranged in the shell, and an air inlet and an air outlet are arranged on the shell; The separation device is detachably arranged in the shell, an air inlet pipe of the separation device is communicated with the air inlet, and an air outlet of the separation device is communicated with the air outlet through the preset separation structure. The separation device includes: A housing; The baffle plate assembly is arranged in the shell, the baffle plate assembly and the inner wall of the shell jointly form a baffling channel, and the air inlet pipe and the air outlet are communicated with the baffling channel; The first filtering mechanism is arranged in the baffling channel. The baffle assembly comprises a first baffle, the first baffle divides the inside of the shell into a first chamber and a second chamber, a first interval is reserved between the first baffle and a bottom plate of the shell, the first chamber and the second chamber are communicated through the first interval, the air inlet pipe is communicated with the first chamber, the air outlet is communicated with the second chamber, and the first filtering mechanism is arranged in the second chamber. The baffle assembly further comprises a second baffle plate, the second baffle plate is arranged between the first baffle plate and the air inlet pipe, the first chamber is divided into an air inlet cavity and a separation cavity by the second baffle plate, a second interval is reserved between the second baffle plate and a top plate of the shell, the air inlet cavity and the separation cavity are communicated through the second interval, the air inlet pipe is communicated with the air inlet cavity, and the separation cavity is communicated with the second chamber through the first inte