Small single-phase swash plate type screw compressor

Abstract

The utility model discloses a small single-phase swash plate type screw compressor, and relates to the technical field of screw compressors. The utility model relates to an oil filter, which comprises an air storage tank, a main machine, a motor, an air filter assembly, an oil drum, an oil filter and a cooling system, the top end of the main machine is communicated with the air filter assembly through an air inlet valve, the air filter assembly is provided with an air inlet, and the oil filter filters oil in the oil drum and introduces the oil into the main machine through a pipe body. The air filtering assembly comprises a shell, a top cover nested at the top end of the shell, a mounting frame, a filter screen nested on the mounting frame, magnets, a Z plate and a filter screen close to the air inlet, the height specification of the mounting frame is the largest, the magnets are mounted on the inner side face, away from the air inlet, of the shell, and an air outlet is formed in the lower portion of the Z plate. According to the air filtering assembly, an air inlet path is optimized through a Z plate, most of fine magnetic impurities are adsorbed through a magnet after filtering is conducted through a plurality of layers of filter screens and before air enters a main machine, and then normal operation of the screw compressor is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of screw compressors, in particular to a small single-phase inclined plate type screw compressor. Background Art

[0002] The air filter element structure installed on the traditional small single-phase inclined plate screw compressor has a relatively simple design structure, usually a single-layer filter element structure. This structural design can only meet basic filtering needs; but due to the diversification of usage scenarios, single-layer filter elements are gradually unable to meet usage needs. For example, if the usage scenario is a steel plant, there may be impurities such as iron filings around the screw compressor, and the iron filings may be large or small. If only a single-layer filter element structure is set, it cannot efficiently remove iron filings within a certain specification range. Utility Model Content

[0003] The utility model provides a small single-phase inclined plate type screw compressor, which overcomes the shortcomings described in the background technology.

[0004] The technical solution adopted by the utility model to solve its technical problem is:

[0005] A small single-phase inclined plate screw compressor includes an air storage tank, a main engine, a motor, an air filter assembly, an oil drum, an oil filter, a cooling system, and a frame. A frame is mounted on the top of the air storage tank, and the main engine, the motor, the oil drum, and the cooling system are installed on the frame. The motor is connected to the main engine through a transmission connection. The top of the main engine is connected to the air filter assembly through an air intake valve, and an air intake port is arranged on the air filter assembly. The oil filter filters the oil in the oil drum and introduces it into the main engine through a pipe body, and the cooling system is connected to the main engine through the pipe body. The air filter assembly includes a shell, a top cover nested on the top of the shell, a mounting frame, a filter screen nested on the mounting frame, a magnet, and a Z plate. A buckle part is arranged at the bottom end of the top cover, and a plurality of sealing rings are nested on the outer surface of the buckle part. Bumps are arranged on both sides of the mounting frame, and a plurality of mounting ports matching the bumps are arranged on the Z plate and the buckle part. The height specification of the filter screen and the mounting frame close to the air intake port is the largest. A plurality of magnets are installed on the inner side of the shell away from the air intake port, and an air outlet is arranged below the Z plate.

[0006] The single-phase inclined disc screw compressor in the utility model improves the actual application effect by optimizing the structure of the air filter component. Multiple layers of filters are provided to meet the filtering needs; the vertically installed filters are convenient for observing the amount of impurities filtered by the filters at different positions, and can be efficiently removed with a vacuum cleaner and a pipe body without removing the filters. The air intake path is optimized by the Z plate, and after being filtered by multiple layers of filters, fine magnetic impurities are adsorbed by magnets before the air is discharged, ensuring the normal operation of the screw compressor; the frame structure with a height difference allows the impurities to be temporarily blocked on the plane where the height difference is located after the air passes through the first filter, which plays a certain dispersing role.

[0007] A preferred technical solution: three filters are provided, namely a first filter, a second filter and a third filter. The height and area of ​​the first filter are larger than those of the second filter and the third filter.

[0008] A better technical solution: The air filter assembly also includes an air inlet pipe and an air outlet pipe, which are connected to the shell. An external filter is set at the air inlet position of the air inlet pipe, and the connection between the air outlet pipe and the shell is the air outlet, ensuring that magnetic impurities can be adsorbed at different heights when air is inhaled.

[0009] A preferred technical solution: a plurality of magnets are installed in layers along the vertical direction.

[0010] A preferred technical solution: When the Z plate is installed in the shell, the side close to the air inlet is lower.

[0011] A preferred technical solution: the diameter of the outlet pipe is smaller than the diameter of the inlet valve, and a sealing ring is provided on the outer surface of the outlet pipe to facilitate disassembly and assembly, and to ensure the sealing after installation.

[0012] A better technical solution: A plurality of hanging plates are arranged on the upper surface of the Z plate to further enhance the effect of hanging impurities.

[0013] A preferred technical solution: a plurality of hanging plates are arranged on the bottom surface of the shell to further enhance the effect of hanging impurities.

[0014] A better technical solution: The height of the hanging plate is 3-6cm.

[0015] By adopting the above technical solution, the beneficial effects of the utility model are:

[0016] 1. The utility model meets the filtering needs by optimizing the arrangement of multiple layers of filter screens; the filter screens installed vertically are convenient for observing the amount of impurities filtered by the filter screens at different positions, and can efficiently cooperate with the vacuum cleaner and the pipe body to remove impurities without disassembling the filter screens.

[0017] 2. In the utility model, the air filter assembly optimizes the air intake path through the Z plate. After being filtered by the multi-layer filter screens and before the main engine intakes air, most of the tiny magnetic impurities are adsorbed by magnets, thereby ensuring the normal operation of the screw compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a rear view of the utility model;

[0021] Figure 3is a schematic diagram of the structure of an air filter assembly;

[0022] Figure 4 This is a schematic diagram of the structure of a hanging plate provided on an air filter assembly.

[0023] Description of main reference numerals:

[0024] 1. Gas tank; 2. Main engine; 3. Motor; 4. Air filter assembly; 5. Oil drum; 6. Oil filter; 7. Cooling system; 8. Frame; 9. Air inlet; 10. Shell; 11. Top cover; 12. Mounting frame; 13. Magnet; 14. Z-plate; 15. Snap-fit ​​part; 16. First filter; 17. Second filter; 18. Third filter; 19. Inlet pipe; 20. Exit pipe; 21. Exit; 22. Hanging plate; 23. Bump; 24. Mounting port. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 4 As shown, a small single-phase inclined plate screw compressor includes an air storage tank 1, a main engine 2, a motor 3, an air filter assembly 4, an oil barrel 5, an oil filter 6, a cooling system 7, and a frame plate 8. The top of the air storage tank 1 is provided with a frame plate 8, on which the main engine 2, the motor 3, the oil barrel 5, and the cooling system 7 are installed. The motor 3 is connected to the main engine 2 by transmission, and the top of the main engine 2 is connected to the air filter assembly 4 through an intake valve. The air filter assembly 4 is provided with an air inlet 9. The oil filter 6 filters the oil in the oil barrel 5 and introduces it into the main engine 2 through a pipe body. The cooling system 7 is connected to the main engine 2 through a pipe body. The air filter assembly 4 comprises a housing 10, a top cover 11 nested at the top of the housing 10, a mounting frame 12, a filter nested on the mounting frame 12, a magnet 13, and a Z plate 14. A buckle 15 is provided at the bottom of the top cover 11, and a plurality of sealing rings are nested on the outer surface of the buckle 15. Lugs 23 are provided on both sides of the mounting frame 12. A plurality of mounting ports 24 matching the lugs 23 are provided on the Z plate 14 and the buckle 15. The filter and mounting frame 12 near the air inlet 9 have the largest height specification. A plurality of magnets 13 are installed on the inner side of the housing 10 away from the air inlet 9. An air outlet 21 is provided below the Z plate 14. The largest height specification is compared with the filter and mounting frame 12 at other positions. The reason why the height specification is the largest is due to the height difference structure.

[0026] Furthermore, three filters are provided, namely a first filter 16 , a second filter 17 , and a third filter 18 . The height and area of ​​the first filter 16 are greater than those of the second filter 17 and the third filter 18 .

[0027] Furthermore, the air filter assembly 4 further includes an air inlet pipe 19 and an air outlet pipe 20, the air inlet pipe 19 and the air outlet pipe 20 are connected to the housing 10, and an external filter screen is arranged at the air inlet 9 of the air inlet pipe 19 ( Figure 3The leftmost position of the air inlet pipe 19 in the figure), the point where the air outlet pipe 20 and the shell 10 pass through is the air outlet 21.

[0028] Furthermore, a plurality of magnets 13 are installed in layers along the vertical direction.

[0029] Furthermore, when the Z plate 14 is installed in the housing 10 , the side close to the air inlet 9 is lower.

[0030] Furthermore, the diameter of the air outlet pipe 20 is smaller than the diameter of the air inlet valve, and a sealing ring is provided on the outer surface of the air outlet pipe 20. The difference in diameter facilitates the connection between the air outlet pipe 20 and the air inlet valve.

[0031] Furthermore, a plurality of hanging plates 22 are provided on the upper surface of the Z plate 14, which can be flexibly selected according to specific needs.

[0032] Furthermore, a plurality of hanging plates 22 are disposed on the bottom surface of the housing 10 . Of course, the structure of the hanging plates 22 can also be a right angle, T-shaped, etc.

[0033] Furthermore, the height of the hanging plate 22 is 3-6 cm to avoid the height being too high to reduce the area of ​​the gas flowing through the filter.

[0034] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A small single-phase swash plate screw compressor, characterized in that: The invention comprises an air storage tank, a main engine, a motor, an air filter assembly, an oil drum, an oil filter, a cooling system and a frame. A frame is mounted on the top of the air storage tank, on which the main engine, the motor, the oil drum and the cooling system are mounted, the motor is connected to the main engine in a transmission manner, an air filter assembly is connected to the top of the main engine through an air intake valve, an air intake is arranged on the air filter assembly, the oil filter filters the oil in the oil drum and introduces the oil into the main engine through a pipe body, the cooling system is connected to the main engine through the pipe body, the air filter assembly comprises a shell, a top cover nested in the top of the shell, a mounting frame, a filter screen nested in the mounting frame, a magnet and a Z plate, a buckling part is arranged at the bottom end of the top cover, a plurality of sealing rings are nested on the outer surface of the buckling part, protrusions are arranged on both sides of the mounting frame, a plurality of mounting ports matching the protrusions are arranged on the Z plate and the buckling part, the height specification of the filter screen and the mounting frame close to the air intake is the largest, a plurality of magnets are mounted on the inner side of the shell away from the air intake, and an air outlet is arranged below the Z plate.

2. The small single-phase swash plate screw compressor according to claim 1, characterized in that: There are three filters, namely a first filter, a second filter and a third filter. The height and area of ​​the first filter are larger than those of the second filter and the third filter.

3. The small single-phase swash plate screw compressor according to claim 1, characterized in that: The air filter assembly also includes an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are connected with the shell, an external filter is arranged at the air inlet position of the air inlet pipe, and the air outlet is the connection point between the air outlet pipe and the shell.

4. The small single-phase swash plate screw compressor according to claim 1, characterized in that: A plurality of magnets are installed in layers along the vertical direction.

5. The small single-phase swash plate screw compressor according to claim 1, characterized in that: When the Z plate is installed in the housing, the side close to the air inlet is lower.

6. The small single-phase swash plate screw compressor according to claim 3, characterized in that: The diameter of the air outlet pipe is smaller than the diameter of the air inlet valve, and a sealing ring is arranged on the outer surface of the air outlet pipe.

7. The small single-phase swash plate screw compressor according to claim 1, characterized in that: A plurality of hanging plates are arranged on the upper surface of the Z plate.

8. The small single-phase swash plate screw compressor according to claim 1, characterized in that: A plurality of hanging plates are arranged on the bottom surface of the shell.

9. The small single-phase swash plate screw compressor according to claim 7 or 8, characterized in that: The height of the hanging plate is 3-6 cm.

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