Screw compressor

Abstract

The utility model relates to the technical field of compressors, in particular to a screw compressor which comprises a compressor body, and an air inlet pipe and an air outlet pipe which are communicated with the interior of the compressor body are arranged on the compressor body. And the cooling assembly circularly pumps cooling liquid so as to cool and dissipate heat of the compressor body. And the dustproof cover is arranged outside the air inlet pipe in a sleeving mode so as to conduct dust removal treatment on air entering the air inlet pipe. And the dust cover self-cleaning assembly is arranged on the dust cover, and the dust cover self-cleaning assembly rotates around the dust cover in a working state so as to remove dust adsorbed on the outer surface of the dust cover. According to the utility model, the shell of the compressor can be quickly cooled and radiated, so that the temperature of the inner chamber of the compressor is reduced, high-temperature compressed air is cooled, the damage of the high-temperature air to the external connecting pipe is avoided, meanwhile, the air entering the inner cavity of the compressor can be dedusted and filtered, and a dedusting structure can be self-cleaned during dedusting and filtering.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a screw compressor. Background Art

[0002] A screw compressor is a type of gas compressor, such as an air compressor, that uses a rotary positive displacement mechanism. They are often used to replace piston compressors where large volumes of high-pressure air are required for large industrial applications or to operate high-powered pneumatic tools, such as jackhammers and impact wrenches.

[0003] The Chinese patent with the authorization announcement number CN219639052U discloses a screw air compressor, including: an upper shell, a lower shell is arranged above the upper shell, and the upper shell and the lower shell are sealed by a sealing gasket, and the upper shell and the lower shell are fixedly connected by a fastening screw, an active screw and a driven screw are arranged above the upper shell, and the left ends of the active screw and the driven screw are both provided with a first gear; a water tank, the water tank is arranged on the left side of the upper shell, and a fan rack is fixedly installed above the right side of the water tank, a water pump is fixedly installed on the adjacent side of the water tank, and the power end of the water pump is connected to a second gear, and a heat dissipation fan is installed on the top of the fan rack; a cooling water pipe, the cooling water pipe is arranged on both the upper shell and the lower shell. The screw air compressor is convenient for air cooling and water cooling of the compressor, which is convenient for the long-term operation of the compressor, and reduces the temperature of the compressed gas, which is convenient for the use of the compressed gas.

[0004] However, the device still has shortcomings: the heat exchange area between the cooling structure and the compressor is small, resulting in low cooling efficiency of the compressed air, and there is a lack of structure for processing the air entering the compressor cavity. After dust enters the cavity, it is easy to scratch the inner wall of the compressor cavity under the push of the rotor. Utility Model Content

[0005] The utility model aims to provide a screw compressor in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is a screw compressor, which comprises a compressor body. An air inlet pipe and an air outlet pipe which are communicated with the interior of the compressor body are arranged on the compressor body.

[0007] The cooling component cools down and dissipates heat by circulating coolant.

[0008] The dust cover is mounted on the outside of the air intake pipe to remove dust from the air entering the air intake pipe.

[0009] And a dust cover self-cleaning component, which is arranged on the dust cover and rotates around the dust cover in a working state to remove dust adsorbed on the outer surface of the dust cover.

[0010] Preferably, the cooling component includes a sealing cover and a coolant circulation component. The sealing cover is sleeved on the outside of the compressor body shell. A liquid flow channel is set between the sealing cover and the outer wall of the compressor body shell. The coolant circulation component is cyclically connected to the liquid flow channel.

[0011] Preferably, a spiral guide plate is arranged outside the shell of the compressor body, and the outer edge of the spiral guide plate is connected to the inner wall of the sealing cover.

[0012] Preferably, the coolant circulation component includes a refrigerator and a circulation pump, a return pipe is arranged at the input end of the refrigerator, the return pipe is connected to one end of the liquid flow channel, the output end of the refrigerator is connected to the input end of the circulation pump, a feed pipe is arranged at the output end of the circulation pump, and the other end of the feed pipe is connected to the other end of the liquid flow channel.

[0013] Preferably, the dust cover self-cleaning assembly includes a rotating shaft and a driving assembly. The rotating shaft is rotatably connected to the dust cover, and the rotating shaft is driven by the driving assembly. A movable plate is arranged on the top of the rotating shaft, and a brush roller is arranged on the movable plate. The brush roller is in flexible contact with the curved surface of the dust cover.

[0014] Preferably, the driving assembly comprises an impeller, the impeller is arranged on the rotating shaft, and the impeller is located in the air inlet pipe.

[0015] Preferably, the roller shaft of the brush roller is rotatably connected to the movable plate, and a gear is arranged on the roller shaft, a gear ring is arranged on the dust cover, and the gear is meshingly connected with the gear ring.

[0016] Preferably, a support ring slidably connected to the dust cover is provided on the dust cover, a support block is provided on the support ring, and the roller shaft passes through the support block and is rotatably connected to the support block.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] By arranging a sealing cover on the outside of the compressor body and providing a spiral channel inside the sealing cover for the circulation of coolant, this structure can increase the contact area between the coolant and the outer shell of the compressor body, thereby improving the heat exchange efficiency and accelerating the efficiency of cooling the air inside the compressor body. At the same time, the utility model also optimizes the air inlet. When filtering dust and other impurities in the air, the dust removal structure is self-cleaned. The cleaning process does not consume electrical energy, saving manpower and energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a structural schematic diagram of the compressor body;

[0021] Figure 3 It is a schematic diagram of the structure of the dust cover.

[0022] Figure numerals: 1. frame; 2. compressor body; 201. spiral guide plate; 3. air inlet pipe; 4. air outlet pipe; 5. sealing cover; 6. return pipe; 7. refrigerator; 8. circulating pump; 9. feed pipe; 10. dust cover; 11. rotating shaft; 12. impeller; 13. movable plate; 14. brush roller; 15. gear; 16. gear ring; 17. support ring. DETAILED DESCRIPTION

[0023] Embodiment 1

[0024] like Figure 1-Figure 3 As shown, a screw compressor proposed by the utility model comprises a compressor body 2, on which an air inlet pipe 3 and an air outlet pipe 4 communicating with the interior are arranged.

[0025] The cooling component cools down and dissipates heat by circulating and pumping the coolant. The cooling component includes a sealing cover 5 and a coolant circulation component. The sealing cover 5 is sleeved on the outside of the shell of the compressor body 2. A liquid flow channel is set between the sealing cover 5 and the outer wall of the shell of the compressor body 2. The coolant circulation component is circulated and connected with the liquid flow channel. A spiral guide plate 201 is set outside the shell of the compressor body 2, and the outer edge of the spiral guide plate 201 is connected to the inner wall of the sealing cover 5. The coolant circulation component includes a refrigerator 7 and a circulation pump 8. A return pipe 6 is set at the input end of the refrigerator 7, and the return pipe 6 is connected to one end of the liquid flow channel. The output end of the refrigerator 7 is connected to the input end of the circulation pump 8. A feeding pipe 9 is set at the output end of the circulation pump 8, and the other end of the feeding pipe 9 is connected to the other end of the liquid flow channel.

[0026] The dust cover 10 is sleeved on the outside of the air intake pipe 3 to remove dust from the air entering the air intake pipe 3 .

[0027] And a dust cover self-cleaning assembly, which is arranged on the dust cover 10 and rotates around the dust cover 10 in the working state to remove dust adsorbed on its outer surface. The dust cover self-cleaning assembly includes a rotating shaft 11 and a driving assembly, the rotating shaft 11 is rotatably connected to the dust cover 10, the rotating shaft 11 is driven by the driving assembly, a movable plate 13 is arranged at the top of the rotating shaft 11, a brush roller 14 is arranged on the movable plate 13, and the brush roller 14 is in flexible contact with the curved surface of the dust cover 10. The driving assembly includes an impeller 12, the impeller 12 is arranged on the rotating shaft 11, and the impeller 12 is located in the air intake pipe 3.

[0028] In this embodiment, when the compressor is working, its inner cavity is heated due to the high heat generated by air compression. At this time, the circulating pump 8 extracts the low-temperature coolant in the refrigerator 7 and sends it into the spiral channel. The low-temperature coolant circulates along the inner part of the spiral channel and exchanges heat with the shell of the compressor body 2. The temperature of the coolant after heat exchange rises, while the high-temperature air in the compressor body 2 and its inner cavity cools down. The heated coolant flows back into the refrigerator 7 through the return pipe 7, and the high-temperature coolant is cooled down again in the refrigerator 7. This cycle improves the cooling efficiency of the compressor. Before the outside air enters the intake pipe 3, dust and other impurities in the air are blocked, so that the air entering the compressor does not contain particulate impurities, but due to the suction effect, dust and other impurities are easily adsorbed on the outer wall of the dust cover 10, and the air will drive the impeller 12 to rotate in the process of entering the intake pipe 3. The impeller 12 drives the rotating shaft 11 and the movable plate 13 to rotate, and the brush roller 14 at the bottom of the movable plate 13 is used to circulate and clean the outer wall of the dust cover 10, so that the dust cover 10 maintains high-efficiency filtering and ventilation.

[0029] Embodiment 2

[0030] like Figure 1 and Figure 3 As shown, the screw compressor proposed by the utility model, compared with the first embodiment, the roller shaft of the brush roller 14 is rotatably connected with the movable plate 13, and a gear 15 is provided on the roller shaft, and a gear ring 16 is provided on the dust cover 10, and the gear 15 is meshedly connected with the gear ring 16. A support ring 17 is provided on the dust cover 10 to be slidably connected thereto, and a support block is provided on the support ring 17, and the roller shaft passes through the support block and is rotatably connected thereto.

[0031] In this embodiment, while the rotating shaft 11 drives the movable plate 13 to rotate, the brush roller 14 under the movable plate revolves around the axis of the rotating shaft 11, and at the same time, it rotates at high speed under the cooperation of the gear 15 and the gear ring 16, thereby improving the efficiency of the brush roller 14 in cleaning the external adsorbed substances of the dust cover 10.

[0032] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A screw compressor, characterized in that: include A compressor body (2), wherein an air inlet pipe (3) and an air outlet pipe (4) which are in communication with the interior of the compressor body (2) are provided on the compressor body (2); A cooling component, which cools down the compressor body (2) by circulating and pumping cooling liquid; A dust cover (10), the dust cover (10) is sleeved on the outside of the air intake pipe (3) to remove dust from the air entering the air intake pipe (3); And a dust cover self-cleaning component, which is arranged on the dust cover (10) and rotates around the dust cover (10) in a working state to remove dust adsorbed on the outer surface thereof.

2. A screw compressor according to claim 1, characterized in that: The cooling component comprises a sealing cover (5) and a cooling liquid circulation component. The sealing cover (5) is sleeved on the outside of the compressor body (2) shell. A liquid flow channel is provided between the sealing cover (5) and the outer wall of the compressor body (2) shell. The cooling liquid circulation component is cyclically connected to the liquid flow channel.

3. A screw compressor according to claim 2, characterized in that: A spiral guide plate (201) is arranged outside the shell of the compressor body (2), and the outer edge of the spiral guide plate (201) is connected to the inner wall of the sealing cover (5).

4. A screw compressor according to claim 2, characterized in that: The coolant circulation component comprises a refrigerator (7) and a circulation pump (8); a return pipe (6) is arranged at the input end of the refrigerator (7); the return pipe (6) is connected to one end of a liquid flow channel; the output end of the refrigerator (7) is connected to the input end of the circulation pump (8); a feed pipe (9) is arranged at the output end of the circulation pump (8); the other end of the feed pipe (9) is connected to the other end of the liquid flow channel.

5. A screw compressor according to claim 1, characterized in that: The dust cover self-cleaning assembly comprises a rotating shaft (11) and a driving assembly. The rotating shaft (11) is rotatably connected to the dust cover (10). The rotating shaft (11) is driven by the driving assembly. A movable plate (13) is arranged at the top end of the rotating shaft (11). A brush roller (14) is arranged on the movable plate (13). The brush roller (14) is in flexible contact with the arc surface of the dust cover (10).

6. A screw compressor according to claim 5, characterized in that: The driving assembly comprises an impeller (12), wherein the impeller (12) is arranged on the rotating shaft (11), and the impeller (12) is located in the air inlet pipe (3).

7. A screw compressor according to claim 5, characterized in that: The roller shaft of the brush roller (14) is rotatably connected to the movable plate (13), and a gear (15) is arranged on the roller shaft. A gear ring (16) is arranged on the dust cover (10), and the gear (15) is meshingly connected with the gear ring (16).

8. A screw compressor according to claim 7, characterized in that: A support ring (17) is provided on the dust cover (10) and is slidably connected thereto. A support block is provided on the support ring (17). The roller shaft penetrates through the support block and is rotatably connected thereto.

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