Oil separator of screw compressor

Abstract

The utility model discloses an oil separator of a screw compressor, belongs to the technical field of oil separators, and aims to solve the problems that in the prior art, a screw and buckle mode is adopted, once the screw and buckle mode is loosened, the screw and buckle mode needs to be fastened again, and a filter element is tedious and difficult to disassemble and assemble. A closing cover covers an upper end opening of the oil separator shell, a combined mechanism is arranged between the closing cover and the mounting end plate and comprises a fixed supporting column, an embedded sliding block and a reset spring, the mounting end plate is fixed to the upper end of the oil separator shell, and the fixed supporting column is arranged in the closing cover; according to the oil separator, the purpose of combining the oil separation filter element and the closing cover can be achieved through the arranged combination mechanism, the step of independently installing the oil separation filter element and the oil separator shell is omitted through the combination mode, and extraction and disassembly of the oil separation filter element can be achieved while the closing cover is separated from the oil separator shell.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil separators, and in particular relates to an oil separator for a screw compressor. Background Art

[0002] The oil supply of the semi-hermetic screw compressor is a self-circulating structure. After the oil tank is supplied with oil through the functions of compressor lubrication, loading and unloading, mixed refrigerant cooling, etc., the oil and the refrigerant are finally separated by the oil separation structure at the oil separation end component, and then returned to the oil tank for continued circulation. When the refrigerant of the compressor is discharged from the compressor, all the oil needs to be left in the compressor. Therefore, the prior art sets an oil separator inside the compressor to separate the oil and the refrigerant.

[0003] However, the existing oil separator mainly includes a housing and a filter element. In order to prevent the filter element from loosening inside the housing, the end plate of the filter element needs to be fixed after it is placed in the housing. The traditional method of using screws and buckles needs to be retightened once it is loose. Before retightening the filter element, it is necessary to carry out cumbersome steps of disassembling and assembling the end cover of the housing. In addition, it is difficult to reach into the housing to extract the filter element when replacing the filter element. There is a risk of scratching the housing when personnel extract it forcefully.

[0004] Therefore, there is a need for an oil separator for a screw compressor to solve the problem that the screws and buckles used in the prior art need to be retightened once they are loose, and the filter element disassembly and assembly steps are cumbersome and difficult. Utility Model Content

[0005] The purpose of the utility model is to provide an oil separator for a screw compressor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil separator of a screw compressor, comprising an oil separator housing, an oil separator filter element is arranged inside the oil separator housing, an upper port cover of the oil separator housing is provided with a closing cover, a combination mechanism is arranged between the closing cover and the mounting end plate, the combination mechanism comprises a fixed pillar, an embedded slider and a reset spring, the mounting end plate is fixed to the upper end of the oil separator housing, the fixed pillar is arranged inside the closing cover, the embedded slider is sleeved on the surface of the fixed pillar, the reset spring is sleeved on the outside of the fixed pillar, a tightening mechanism is arranged inside the closing cover, the tightening mechanism comprises a tightening plate, a spring sleeve and a telescopic slide rod, the tightening plate is arranged below the closing cover, the spring sleeve is fixed on the inner wall of the closing cover, and the telescopic slide rod is arranged between the tightening plate and the spring sleeve.

[0007] It should be noted in the solution that an assembly slide is provided on the upper surface of the mounting end plate, and a take-in and put-out port connected to the assembly slide is provided on the upper surface of the mounting end plate.

[0008] It is further worth noting that a guide slot is provided on the lower end surface of the closing cover, the upper end of the embedded slider is slidably connected in the guide slot of the closing cover, and the lower end of the embedded slider is slidably connected in the assembly slot of the mounting end plate.

[0009] It should be further explained that a fixed support is fixed between the inner walls of the closing cover, one end of the fixed support is fixed to the wall where the guide slot is located, and the other end of the fixed support is fixed to a side surface of the fixed support.

[0010] As a preferred implementation, one end of the return spring is fixed to a side surface of the embedded slider, and the other end of the return spring is fixed to a side surface of the fixed support.

[0011] As a preferred embodiment, the lower end of the telescopic slide rod is fixed at the center of the upper surface of the clamping plate, the upper end of the telescopic slide rod is slidably connected to the inside of the spring sleeve, and a lifting spring is provided at the portion where the telescopic slide rod extends into the spring sleeve, one end of the lifting spring is fixed to the inner wall of the spring sleeve, and the other end of the lifting spring is fixed to the end plate of the telescopic slide rod.

[0012] As a preferred embodiment, a lifting slide arm is fixed to the upper surface of the abutting plate, the lifting slide arm is slidably connected to a fixed support, and an anti-slip pad is fixed to the lower surface of the abutting plate.

[0013] As a preferred embodiment, an assembly port is provided inside the oil separator housing, a locking seat is fixed at the edge of the upper end surface of the oil separator housing, and a docking seat is fixed at the edge of the lower end surface of the closing cover.

[0014] Compared with the prior art, the oil separator for a screw compressor provided by the utility model has at least the following beneficial effects:

[0015] ⑴ The purpose of combining the oil filter element and the closing cover can be achieved by setting up a combination mechanism. This combination method eliminates the independent installation steps of the oil filter element and the oil separator housing, and the oil filter element can be pulled out and disassembled while the closing cover is separated from the oil separator housing.

[0016] ⑵ Through the setting of the clamping mechanism, during use, the clamping plate can press against the mounting end plate at the upper end of the oil filter element from above to achieve the purpose of clamping and positioning the oil filter element. The adaptive clamping method of the clamping plate is conducive to ensuring the stability of the oil filter element assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a three-dimensional diagram of the overall structure of an oil separator for a screw compressor according to the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the closed cover structure of an oil separator of a screw compressor according to the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the cross-sectional structure of a closing cover of an oil separator of a screw compressor according to the utility model;

[0021] Figure 4 The utility model is a three-dimensional diagram of the cross-sectional structure of a spring sleeve of an oil separator of a screw compressor.

[0022] In the figure: 1. Oil separator housing; 2. Assembly port; 3. Closing cover; 4. Docking seat; 5. Locking seat; 6. Oil separator filter element; 7. Mounting end plate; 8. Assembly slide port; 9. Take-in and put-out port; 10. Guide slide groove; 11. Fixed pillar; 12. Embedded slide block; 13. Return spring; 14. Fixed support; 15. Lifting slide arm; 16. Clamping plate; 17. Anti-slip gasket; 18. Spring sleeve; 19. Telescopic slide rod; 20. Lifting spring. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the embodiments.

[0024] See also Figure 1-4 The utility model provides an oil separator for a screw compressor, comprising an oil separator housing 1, an oil filter element 6 is arranged inside the oil separator housing 1, a closing cover 3 is arranged on the upper port cover of the oil separator housing 1, a combination mechanism is arranged between the closing cover 3 and the mounting end plate 7, the combination mechanism comprises a fixed pillar 11, an embedded slider 12 and a return spring 13, the mounting end plate 7 is fixed to the upper end of the oil separator housing 1, the fixed pillar 11 is arranged inside the closing cover 3, the embedded slider 12 is sleeved on the surface of the fixed pillar 11, the return spring 13 is sleeved on the outside of the fixed pillar 11, a tightening mechanism is arranged inside the closing cover 3, the tightening mechanism comprises a tightening plate 16, a spring sleeve 18 and a telescopic slide rod 19, the tightening plate 16 is arranged below the closing cover 3, the spring sleeve 18 is fixed on the inner wall of the closing cover 3, and the telescopic slide rod 19 is arranged between the tightening plate 16 and the spring sleeve 18.

[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth to explain in detail that an assembly sliding opening 8 is provided on the upper surface of the installation end plate 7 , and a taking-in and putting opening 9 connected with the assembly sliding opening 8 is provided on the upper surface of the installation end plate 7 .

[0026] Further as Figure 3 As shown, it is worth explaining in detail that a guide groove 10 is provided on the lower end surface of the closing cover 3, the upper end of the embedded slider 12 is slidably connected in the guide groove 10 of the closing cover 3, and the lower end of the embedded slider 12 is slidably connected in the assembly slide 8 of the mounting end plate 7.

[0027] This solution has the following working process: before use, the two embedded sliders 12 are stretched outward, and then the embedded sliders 12 are installed in the access opening 9 of the mounting end plate 7, and then the embedded sliders 12 slide into the assembly sliding opening 8 of the mounting end plate 7 under the action of the rebound force of the reset spring 13, so that the purpose of combining the oil filter element 6 and the closing cover 3 can be achieved. This combination method omits the independent installation steps of the oil filter element 6 and the oil separator housing 1, and the oil filter element 6 can be pulled out and disassembled when the closing cover 3 is separated from the oil separator housing 1.

[0028] According to the above working process, it can be known that the purpose of combining the oil filter element 6 and the closing cover 3 can be achieved. This combination method omits the independent installation steps of the oil filter element 6 and the oil separator housing 1, and the oil filter element 6 can be pulled out and disassembled while the closing cover 3 is separated from the oil separator housing 1.

[0029] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth explaining in detail that a fixed support 14 is fixed between the inner walls of the closing cover 3, one end of the fixed support 11 is fixed to the wall where the guide slot 10 is located, and the other end of the fixed support 11 is fixed to a side surface of the fixed support 14.

[0030] Further as Figure 4 As shown, it is worth to explain in detail that one end of the return spring 13 is fixed to one side surface of the embedded slider 12 , and the other end of the return spring 13 is fixed to one side surface of the fixed support 14 .

[0031] Further as Figure 1 As shown, it is worth explaining in detail that the lower end of the telescopic slide rod 19 is fixed at the center of the upper surface of the clamping plate 16, and the upper end of the telescopic slide rod 19 is slidably connected to the inside of the spring sleeve 18. The part where the telescopic slide rod 19 extends into the spring sleeve 18 is sleeved with a lifting spring 20, one end of the lifting spring 20 is fixed to the inner wall of the spring sleeve 18, and the other end of the lifting spring 20 is fixed to the end plate of the telescopic slide rod 19.

[0032] Further as Figure 1 As shown, it is worth explaining in detail that a lifting slide arm 15 is fixed to the upper surface of the clamping plate 16, and the lifting slide arm 15 is slidably connected to the fixed support 14, and an anti-slip gasket 17 is fixed to the lower surface of the clamping plate 16. During use, the telescopic slide rod 19 controls the clamping plate 16 to remain downward under the elastic force of the lifting spring 20, so that the clamping plate 16 can be pressed against the mounting end plate 7 at the upper end of the oil filter element 6 from above to achieve the purpose of pressing and positioning the oil filter element 6. The adaptive pressing method of the clamping plate 16 is conducive to ensuring the stability of the assembly of the oil filter element 6.

[0033] Further as Figure 1 As shown, it is worth to explain in detail that the oil separator housing 1 is provided with an assembly port 2, a locking seat 5 is fixed at the upper end surface edge of the oil separator housing 1, and a docking seat 4 is fixed at the lower end surface edge of the closing cover 3.

[0034] In summary: the purpose of combining the oil filter element 6 and the closing cover 3 can be achieved, this combination method eliminates the independent installation steps of the oil filter element 6 and the oil separator housing 1, and the oil filter element 6 can be pulled out and disassembled while the closing cover 3 is separated from the oil separator housing 1; during use, the clamping plate 16 can clamp the mounting end plate 7 at the upper end of the oil filter element 6 from above to achieve the purpose of clamping and positioning the oil filter element 6, and the adaptive clamping method of the clamping plate 16 is conducive to ensuring the stability of the assembly of the oil filter element 6.

[0035] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An oil separator for a screw compressor, comprising an oil separator housing (1), characterized in that: An oil separator filter element (6) is arranged inside the oil separator housing (1), a closing cover (3) is arranged on the upper end cover of the oil separator housing (1), a combination mechanism is arranged between the closing cover (3) and the mounting end plate (7), the combination mechanism comprising a fixed support (11), an embedded slide block (12) and a return spring (13), the mounting end plate (7) is fixed to the upper end of the oil separator housing (1), the fixed support (11) is arranged inside the closing cover (3), and the embedded slide block (12) is sleeved On the surface of the fixed pillar (11), the return spring (13) is sleeved on the outside of the fixed pillar (11), and a tightening mechanism is arranged inside the closing cover (3), the tightening mechanism comprises a tightening plate (16), a spring sleeve (18) and a telescopic slide rod (19), the tightening plate (16) is arranged below the closing cover (3), the spring sleeve (18) is fixed on the inner wall of the closing cover (3), and the telescopic slide rod (19) is arranged between the tightening plate (16) and the spring sleeve (18).

2. The oil separator for a screw compressor according to claim 1, characterized in that: An assembly sliding opening (8) is provided on the upper surface of the installation end plate (7), and a taking-in and putting-out opening (9) which is in communication with the assembly sliding opening (8) is provided on the upper surface of the installation end plate (7).

3. The oil separator for a screw compressor according to claim 2, characterized in that: The lower end surface of the closing cover (3) is provided with a guide slot (10), the upper end of the embedded slide block (12) is slidably connected in the guide slot (10) of the closing cover (3), and the lower end of the embedded slide block (12) is slidably connected in the assembly slot (8) of the mounting end plate (7).

4. The oil separator for a screw compressor according to claim 3, characterized in that: A fixed support (14) is fixed between the inner walls of the closing cover (3), one end of the fixed support (11) is fixed to the wall where the guide slot (10) is located, and the other end of the fixed support (11) is fixed to a side surface of the fixed support (14).

5. The oil separator for a screw compressor according to claim 4, characterized in that: One end of the return spring (13) is fixed to a side surface of the embedded slide block (12), and the other end of the return spring (13) is fixed to a side surface of the fixed support (14).

6. The oil separator for a screw compressor according to claim 5, characterized in that: The lower end of the telescopic slide rod (19) is fixed at the center of the upper surface of the clamping plate (16), and the upper end of the telescopic slide rod (19) is slidably connected to the inside of the spring sleeve (18). The part where the telescopic slide rod (19) extends into the spring sleeve (18) is sleeved with a lifting spring (20), one end of the lifting spring (20) is fixed to the inner wall of the spring sleeve (18), and the other end of the lifting spring (20) is fixed to the end plate of the telescopic slide rod (19).

7. The oil separator for a screw compressor according to claim 6, characterized in that: A lifting slide arm (15) is fixed on the upper surface of the abutting plate (16), and the lifting slide arm (15) is slidably connected to the fixed support (14). An anti-slip pad (17) is fixed on the lower surface of the abutting plate (16).

8. The oil separator for a screw compressor according to claim 7, characterized in that: An assembly port (2) is provided inside the oil separator housing (1), a locking seat (5) is fixed at the edge of the upper end surface of the oil separator housing (1), and a docking seat (4) is fixed at the edge of the lower end surface of the closing cover (3).

Images