Gas-liquid separator and compressor

Abstract

The gas-liquid separator provided by the present invention comprises: a shell, provided with a gas-liquid separation chamber; an inlet, provided at one end of the shell and connected with the gas-liquid separation chamber; an outlet, provided at the other end of the shell and connected with the gas-liquid separation chamber; a guide tube, provided in the gas-liquid separation chamber, extending from the outlet toward the inlet, connected with the outlet, and spaced apart from the inlet; at least one ventilation structure is provided on the peripheral wall of the guide tube or the end wall facing away from the inlet, the ventilation structure connects the gas-liquid separation chamber with the inner cavity of the guide tube; an impurity adsorption device, including at least one first impurity adsorption structure, provided in the gas-liquid separation chamber. By providing the guide tube, liquid refrigerant and impurities are prevented from being directly discharged to the outlet, thereby improving the gas-liquid separation effect. At the same time, by providing the impurity adsorption device, it plays a role in blocking impurities, preventing impurities from entering the compressor and causing the pump body assembly to get stuck, and the flow resistance of the refrigerant will not be increased due to the provision of the filter, thereby improving the performance of the compressor.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning, and in particular to a gas-liquid separator and a compressor. Background Art

[0002] The gas-liquid separator is an important part of the air conditioning system. It has the functions of storage, gas-liquid separation, filtration, silencing and refrigerant buffering. The gas-liquid separator is installed between the air conditioning evaporator and the compressor, connected to the suction pipe of the compressor, to prevent the liquid refrigerant from flowing into the compressor and causing liquid hammer. During the operation of the air conditioning system, the refrigerant coming out of the evaporator cannot be guaranteed to be completely vaporized, and liquid refrigerant will enter the gas-liquid separator. Since the liquid refrigerant is heavier than the gas, it will directly fall to the bottom of the gas-liquid separator cylinder. The vaporized refrigerant enters the compressor from the outlet of the gas-liquid separator, thereby preventing the compressor from sucking in liquid refrigerant and causing liquid hammer.

[0003] The prior art discloses a gas-liquid separator. In order to improve the gas-liquid separation effect of the refrigerant, a guide component is also arranged between the air inlet pipe and the air outlet pipe. The guide component can change the flow direction of the fluid entering the air outlet pipe to prevent the liquid refrigerant from flowing directly to the air outlet pipe. In order to prevent impurities (such as iron filings and copper filings) in the pipeline from directly entering the compressor, a filter assembly is also installed between the air inlet pipe and the exhaust pipe of the gas-liquid separator to prevent impurities from entering the compressor. However, the filter assembly will increase the flow resistance of the refrigerant while blocking the impurities, thereby reducing the performance of the compressor. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the gas-liquid separator in the prior art that, due to the setting of the filter assembly, it blocks impurities while increasing the flow resistance of the refrigerant and reducing the performance of the compressor, thereby providing a gas-liquid separator and compressor that can block impurities without increasing the flow resistance of the refrigerant and improve the performance of the compressor.

[0005] A gas-liquid separator, comprising:

[0006] The shell is provided with a gas-liquid separation chamber;

[0007] an inlet, disposed at one end of the shell and communicated with the gas-liquid separation chamber;

[0008] An outlet is provided at the other end of the shell and communicates with the gas-liquid separation chamber;

[0009] A flow guide pipe is provided in the gas-liquid separation chamber, extends from the outlet toward the inlet, is communicated with the outlet, and is spaced apart from the inlet; at least one ventilation structure is provided on the peripheral wall of the flow guide pipe or the end wall facing away from the inlet, and the ventilation structure communicates the gas-liquid separation chamber with the inner cavity of the flow guide pipe;

[0010] The impurity adsorption device comprises at least one first impurity adsorption structure, which is arranged in the gas-liquid separation chamber.

[0011] The first impurity adsorption structure is arranged at an end of the gas-liquid separation chamber away from the inlet.

[0012] The guide pipe is provided with an oil return hole, and the first impurity adsorption structure is arranged relative to an end of the oil return hole away from the inlet.

[0013] The first impurity adsorption structure is arranged in one-to-one correspondence with the oil return hole.

[0014] The ventilation structure includes at least one ventilation unit, and the ventilation unit includes a plurality of ventilation holes distributed at intervals along the circumference of the guide tube.

[0015] A plurality of clearance grooves are arranged at intervals on the peripheral wall of the flow guide pipe, and the vent holes are arranged on the groove bottoms of the clearance grooves.

[0016] Two ventilation structures are arranged on the end wall of the flow guide tube facing away from the inlet, and are arranged on the end walls on both sides of the flow guide tube.

[0017] The end of the flow guide tube facing the inlet comprises:

[0018] a flow blocking section, arranged opposite to the inlet and having an outer diameter smaller than an outer diameter of a peripheral wall of the flow guide pipe;

[0019] The flow guiding section connects the flow blocking section and the peripheral wall of the flow guiding pipe.

[0020] The impurity adsorption device further comprises at least one second impurity adsorption structure, which is arranged outside the flow blocking section.

[0021] The impurity adsorption device is a magnet.

[0022] A compressor, wherein the air inlet of the compressor is connected with the above-mentioned gas-liquid separator.

[0023] The technical solution of the present invention has the following advantages:

[0024] 1. The gas-liquid separator provided by the present invention comprises: a shell, provided with a gas-liquid separation chamber; an inlet, provided at one end of the shell and connected with the gas-liquid separation chamber; an outlet, provided at the other end of the shell and connected with the gas-liquid separation chamber; a guide tube, provided in the gas-liquid separation chamber, extending from the outlet toward the inlet, connected with the outlet, and spaced from the inlet; at least one ventilation structure is provided on the peripheral wall of the guide tube or the end wall facing away from the inlet, the ventilation structure connects the gas-liquid separation chamber with the inner cavity of the guide tube; an impurity adsorption device, including at least one first impurity adsorption structure, provided in the gas-liquid separation chamber. By providing the guide tube, liquid refrigerant and impurities are prevented from being discharged directly to the outlet, liquid hammer and damage to the compressor are prevented, and the gas-liquid separation effect is improved. At the same time, by providing the impurity adsorption device, the impurities are blocked, and the impurities are prevented from entering the compressor to cause the pump body assembly to be stuck, and the flow resistance of the refrigerant will not be increased due to the provision of the filter, thereby improving the performance of the compressor.

[0025] 2. In the gas-liquid separator provided by the present invention, the first impurity adsorption structure is arranged at the end of the gas-liquid separation chamber away from the inlet. By arranging the first impurity adsorption structure at the end of the gas-liquid separation chamber away from the inlet, impurities that gather toward the outlet of the shell due to their own physical properties can be adsorbed to a greater extent, preventing impurities from entering the outlet of the shell through the vent hole, thereby ensuring the impurity blocking effect.

[0026] 3. In the gas-liquid separator provided by the present invention, the guide tube is provided with an oil return hole, and the first impurity adsorption structure is arranged relative to the end of the oil return hole away from the inlet. By arranging the first impurity adsorption structure relative to the end of the oil return hole away from the inlet, impurities are adsorbed and gathered at the outlet end of the shell, preventing impurities from entering the outlet of the shell from the oil return hole, thereby improving the effect of blocking impurities.

[0027] 4. In the gas-liquid separator provided by the present invention, the ventilation structure is arranged at one end of the guide tube close to the inlet. By arranging the ventilation structure at one end of the guide tube close to the inlet, it is ensured that the gaseous refrigerant after gas-liquid separation can enter the outlet of the shell from the ventilation structure, and impurities and liquid refrigerant are prevented from entering the outlet of the shell from the ventilation structure, thereby ensuring the gas-liquid separation effect.

[0028] 5. In the gas-liquid separator provided by the present invention, a plurality of clearance grooves are arranged at intervals on the peripheral wall of the flow guide tube, and the vent holes are arranged on the groove bottoms of the clearance grooves. By arranging a plurality of clearance grooves at intervals on the peripheral wall of the flow guide tube, and the vent holes are arranged on the groove bottoms of the clearance grooves, the refrigerant and impurities enter from the inlet of the shell to the outlet end for gas-liquid separation and impurity adsorption, preventing the liquid refrigerant and impurities from directly entering the outlet of the shell from the vent holes when entering.

[0029] 6. In the gas-liquid separator provided by the present invention, the end of the flow guide tube facing the inlet includes: a flow blocking section, which is arranged opposite to the inlet and has an outer diameter smaller than the outer diameter of the peripheral wall of the flow guide tube; and a flow guide section, which connects the flow blocking section with the peripheral wall of the flow guide tube. By configuring the end of the flow guide tube facing the inlet to include a flow blocking section and a flow guide section, and the outer diameter of the flow blocking section is smaller than the outer diameter of the peripheral wall of the flow guide tube, the refrigerant and impurities entering from the shell inlet can better enter the shell through the flow guide, thereby reducing the turbulence of the refrigerant.

[0030] 7. In the gas-liquid separator provided by the present invention, the impurity adsorption device further comprises at least one second impurity adsorption structure, which is arranged outside the flow blocking section. By arranging the second impurity adsorption structure outside the flow blocking section, impurities entering from the shell inlet can be adsorbed, thereby improving the adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 is a cross-sectional view of a gas-liquid separator of the present invention;

[0033] Figure 2 A cross-sectional view of an alternative form of the gas-liquid separator of the present invention;

[0034] Figure 3 A cross-sectional view of an alternative form of the gas-liquid separator of the present invention;

[0035] Figure 4 A cross-sectional view of an alternative form of the gas-liquid separator of the present invention;

[0036] Figure 5 A cross-sectional view of an alternative form of the gas-liquid separator of the present invention;

[0037] Figure 6 A cross-sectional view of an alternative form of the gas-liquid separator of the present invention;

[0038] Description of reference numerals:

[0039] 1-shell; 2-gas-liquid separation chamber; 3-inlet; 4-outlet; 5-guide pipe; 6-ventilation structure; 7-tube cavity; 8-first impurity adsorption structure; 9-oil return hole; 10-allowance groove; 11-flow blocking section; 12-guide section; 13-second impurity adsorption structure; 14-inlet pipe; 15-outlet pipe. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] like Figure 1-Figure 6 As shown, a gas-liquid separator is provided in this embodiment, comprising: a shell 1, an inlet 3, an outlet 4, a flow guide pipe 5 and an impurity adsorption device.

[0043] The shell 1 is provided with a gas-liquid separation chamber 2; the inlet 3 is provided at one end of the shell 1 and communicated with the gas-liquid separation chamber 2; the outlet 4 is provided at the other end of the shell 1 and communicated with the gas-liquid separation chamber 2; the guide tube 5 is provided in the gas-liquid separation chamber 2, extends from the outlet 4 toward the inlet 3, communicates with the outlet 4, and is spaced from the inlet 3; at least one ventilation structure 6 is provided on the peripheral wall of the guide tube 5 or the end wall facing away from the inlet 3, and the ventilation structure 6 communicates the gas-liquid separation chamber 2 with the tube cavity 7 of the guide tube 5; the impurity adsorption device includes at least one first impurity adsorption structure 8, which is provided in the gas-liquid separation chamber 2. Specifically, the ventilation structure 6 in this embodiment is one. As a convertible embodiment, it is also possible that the ventilation structure 6 is two or more.

[0044] By providing the guide pipe 5, liquid refrigerant and impurities are prevented from being discharged directly to the outlet 4, liquid hammer and damage to the compressor are prevented, and the gas-liquid separation effect is improved. At the same time, by providing the impurity adsorption device, it plays a role in blocking impurities and preventing impurities from entering the compressor and causing the pump body assembly to get stuck. The flow resistance of the refrigerant will not be increased due to the provision of the filter, thereby improving the performance of the compressor.

[0045] In this embodiment, the first impurity adsorption structure 8 is arranged near the outlet 4 relative to the vent hole. Specifically, the first impurity adsorption structure 8 is arranged at the end of the gas-liquid separation chamber 2 away from the inlet 3. By arranging the first impurity adsorption structure 8 at the end of the gas-liquid separation chamber 2 away from the inlet 3, impurities that gather toward the outlet 4 of the housing 1 due to their own physical properties can be adsorbed to a greater extent, preventing impurities from entering the outlet 4 of the housing 1 through the vent hole, thereby ensuring the impurity blocking effect.

[0046] In this embodiment, the guide tube 5 is provided with an oil return hole 9, and the first impurity adsorption structure 8 is arranged relative to the end of the oil return hole 9 away from the inlet 3. By arranging the first impurity adsorption structure 8 relative to the end of the oil return hole 9 away from the inlet 3, impurities are adsorbed and gathered at the outlet 4 end of the housing 1, preventing impurities from entering the outlet 4 of the housing 1 from the oil return hole 9, thereby improving the effect of blocking impurities.

[0047] In order to ensure that impurities do not enter the outlet 4 from the oil return hole 9, the first impurity adsorption structure 8 is set in a one-to-one correspondence with the oil return hole 9, that is, the first impurity adsorption structure 8 is set at a position corresponding to the oil return hole 9, and the number of the first impurity adsorption structure 8 is the same as that of the oil return hole 9. Specifically, the number of the first impurity adsorption structures 8 is four. As a convertible embodiment, it is also possible that the number of the first impurity adsorption structures 8 is different from that of the oil return hole 9, and the number of the first impurity adsorption structures 8 can be set according to actual needs.

[0048] The ventilation structure 6 in this embodiment is arranged at one end of the flow guide tube 5 close to the inlet 3. By arranging the ventilation structure 6 at one end of the flow guide tube 5 close to the inlet 3, it is ensured that the gaseous refrigerant after gas-liquid separation can enter the outlet 4 of the shell 1 from the ventilation structure 6, and impurities and liquid refrigerant are prevented from entering the outlet 4 of the shell 1 from the ventilation structure 6, thereby ensuring the gas-liquid separation effect.

[0049] The end of the flow guide tube 5 facing the inlet 3 in this embodiment includes: a flow blocking section 11, which is arranged opposite to the inlet 3 and has an outer diameter smaller than the outer diameter of the peripheral wall of the flow guide tube 5; and a flow guide section 12, which connects the flow blocking section 11 and the peripheral wall of the flow guide tube 5. By setting the end of the flow guide tube 5 facing the inlet 3 to include the flow blocking section 11 and the flow guide section 12, and the outer diameter of the flow blocking section 11 is smaller than the outer diameter of the peripheral wall of the flow guide tube 5, the refrigerant and impurities entering from the inlet 3 of the shell 1 can be better guided into the shell 1, thereby reducing the turbulence of the refrigerant. Specifically, the flow guide section 12 is a straight line section. As a convertible embodiment, the flow guide section 12 can also be a circular arc section.

[0050] The impurity adsorption device in this embodiment further includes at least one second impurity adsorption structure 13, which is arranged outside the flow blocking section 11. By arranging the second impurity adsorption structure 13 outside the flow blocking section 11, impurities entering from the inlet 3 of the housing 1 can be adsorbed, thereby improving the adsorption effect. Specifically, the second impurity adsorption structure 13 in this embodiment is one. As a convertible embodiment, the second impurity adsorption structure 13 can also be two or more.

[0051] Specifically, the impurity adsorption device in this embodiment is a magnet.

[0052] There are many specific forms of the ventilation structure 6, such as Figure 1As shown, the ventilation structure 6 in this embodiment includes at least one ventilation unit, and the ventilation unit includes a plurality of ventilation holes spaced apart along the circumference of the flow guide tube 5. Specifically, the ventilation structure 6 in this embodiment includes one ventilation unit. As a convertible embodiment, the ventilation structure 6 may also include two ventilation units or more ventilation units.

[0053] Specifically, a plurality of clearance grooves 10 are arranged at intervals on the peripheral wall of the flow guide tube 5 in this embodiment, and the vent holes are arranged on the bottom of the clearance grooves 10. By arranging a plurality of clearance grooves 10 at intervals on the peripheral wall of the flow guide tube 5 and vent holes are arranged on the bottom of the clearance grooves 10, the refrigerant and impurities enter from the inlet 3 of the shell 1 to the outlet 4 for gas-liquid separation and impurity adsorption, preventing the liquid refrigerant and impurities from directly entering the outlet 4 of the shell 1 from the vent holes when entering. Specifically, four clearance grooves 10 are arranged at intervals on the peripheral wall of the flow guide tube 5.

[0054] As a convertible implementation method, it can also be, Figure 2-Figure 6 As shown, the ventilation structure 6 includes a plurality of ventilation units, and the plurality of ventilation units are spaced apart along the axial direction of the flow guide tube 5; or, ventilation holes are spaced apart on the peripheral wall of the flow guide tube 5; or, a plurality of outwardly protruding extension walls are spaced apart on the peripheral wall of the flow guide tube 5, and the ventilation holes are formed at the openings surrounded by the extension walls; or, two ventilation structures 6 are provided on the end wall of the flow guide tube 5 facing away from the inlet 3, and are respectively arranged on the end walls on both sides of the flow guide tube 5.

[0055] In order to better block impurities, the diameter of the vent hole in this embodiment is 0.1-0.2 mm.

[0056] The present embodiment also provides a compressor, and the above-mentioned gas-liquid separator is connected to the air inlet of the compressor. Specifically, the air inlet of the compressor is connected to the outlet 4 of the shell 1 of the gas-liquid separator through the air outlet pipe 15, and the outlet of the evaporator is connected to the inlet 3 of the shell 1 of the gas-liquid separator through the air inlet pipe 14. By arranging the gas-liquid separator between the evaporator and the compressor, liquid refrigerant is prevented from entering the compressor to cause liquid hammer, and impurities are prevented from entering the compressor to cause the pump body assembly to be stuck, thereby improving the performance of the compressor and thus improving the operating effect of the air conditioner.

[0057] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A gas-liquid separator, characterized in that: include: The housing (1) is provided with a gas-liquid separation chamber (2); An inlet (3) is provided at one end of the shell (1) and is in communication with the gas-liquid separation chamber (2); An outlet (4) is provided at the other end of the shell (1) and is communicated with the gas-liquid separation chamber (2); A flow guide tube (5) is arranged in the gas-liquid separation chamber (2), extends from the outlet (4) toward the inlet (3), is communicated with the outlet (4), and is spaced apart from the inlet (3); at least one ventilation structure (6) is provided on a peripheral wall of the flow guide tube (5) or an end wall facing away from the inlet (3); the ventilation structure (6) communicates the gas-liquid separation chamber (2) with an inner cavity (7) of the flow guide tube (5); An impurity adsorption device, comprising at least one first impurity adsorption structure (8), arranged in the gas-liquid separation chamber (2); The end of the flow guide tube (5) facing the inlet (3) comprises: A flow blocking section (11) arranged opposite to the inlet (3) and having an outer diameter smaller than an outer diameter of a peripheral wall of the flow guide tube (5); a flow guide section (12) connecting the flow blocking section (11) and the peripheral wall of the flow guide pipe (5), wherein the flow guide section (12) is a straight line section or an arc section; The impurity adsorption device further comprises at least one second impurity adsorption structure (13), which is arranged on the outer side of the flow blocking section close to the inlet (3).

2. The gas-liquid separator according to claim 1, characterized in that: The first impurity adsorption structure (8) is arranged at an end of the gas-liquid separation chamber (2) away from the inlet (3).

3. The gas-liquid separator according to claim 2, characterized in that: The guide pipe (5) is provided with an oil return hole (9), and the first impurity adsorption structure (8) is arranged at an end of the oil return hole (9) away from the inlet (3).

4. The gas-liquid separator according to claim 3, characterized in that: The first impurity adsorption structure (8) and the oil return hole (9) are arranged in a one-to-one correspondence.

5. The gas-liquid separator according to any one of claims 1 to 4, characterized in that: The ventilation structure (6) comprises at least one ventilation unit, and the ventilation unit comprises a plurality of ventilation holes distributed at intervals along the circumference of the flow guide tube (5).

6. The gas-liquid separator according to claim 5, characterized in that: A plurality of clearance grooves (10) are arranged at intervals on the peripheral wall of the flow guide pipe (5), and the vent holes are arranged on the bottom of the clearance grooves (10).

7. The gas-liquid separator according to any one of claims 1 to 4, characterized in that: Two ventilation structures (6) are provided on the end wall of the flow guide tube (5) facing away from the inlet (3), and are respectively arranged on the end walls on both sides of the flow guide tube (5).

8. The gas-liquid separator according to any one of claims 1 to 4, characterized in that: The impurity adsorption device is a magnet.

9. A compressor, characterized in that: The air inlet of the compressor is connected to a gas-liquid separator as described in any one of claims 1 to 8.

Images