Low-noise screw compressor

Abstract

The utility model discloses a low-noise screw compressor, which relates to the technical field of compressors and comprises a compression cavity, an anode screw is arranged on one side in the compression cavity, a cathode screw is arranged on the other side in the compression cavity, a cooling device is arranged at one end of the compression cavity, and a water inlet pipe is arranged at the other end of the compression cavity. A driving gear is arranged at one end, close to the cooling device, of the anode screw rod; a plurality of heat dissipation rings are uniformly arranged in the anode screw rod at intervals; a driven gear is arranged at one end, close to the driving gear, of the cathode screw rod; a plurality of heat dissipation rings are uniformly arranged in the cathode screw rod at intervals; a motor gear is arranged at the top of the cooling device, and a return pipe is arranged at the other end of the cooling device; and a circulating pump is arranged at the other end of the return pipe. By means of the structure, the inside of the anode screw and the inside of the cathode screw can be cooled through cooling water, then pressed air is cooled, the temperature inside the compression cavity is prevented from being too high, and meanwhile the cooling water can absorb sound waves and weaken noise.

Description

Technical Field

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

[0002] Screw compressors, also known as helical compressors, are positive displacement compressors. They play a vital role in urban construction, supplying gas such as coal gas, natural gas, liquefied petroleum gas, liquefied natural gas, and compressed air. In industrial manufacturing fields such as metallurgy, food and beverages, and pharmaceuticals, screw compressors are used to provide compressed air or specialty gases to meet production process requirements.

[0003] After searching, the patent announcement number CN215633759U discloses a low-noise screw compressor, which includes a body, an isolation plate, a motor, a main rotating shaft, an auxiliary rotating shaft, a drive gear, a transmission gear, an anode screw, a cathode screw and a buffer device. The above-mentioned equipment mainly performs shock absorption and buffering on the compressor body, which can effectively prevent excessive noise caused by excessive shaking of the body. However, during use, the anode screw and the cathode screw are meshed and connected with each other. After long-term use, a large amount of heat will be generated, causing the internal temperature of the compressor to rise, which may further reduce the service life of the compressor. In addition, the internal lubricating oil may undergo catalytic decomposition at high temperatures, producing harmful substances and affecting the quality of compressed air. Therefore, we propose a low-noise screw compressor to solve the problems mentioned above. Utility Model Content

[0004] The purpose of the utility model is to provide a low-noise screw compressor to solve the problem proposed in the above background technology that in the existing low-noise screw compressor, the anode screw and the cathode screw are meshed and connected with each other during use, which will generate a lot of heat after long-term use, causing the internal temperature of the compressor to rise, which may further reduce the service life of the compressor, and the internal lubricating oil may undergo catalytic decomposition at high temperature to produce harmful substances, affecting the quality of compressed air.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A low-noise screw compressor comprises a compression chamber, an anode screw is provided on one side of the compression chamber, a cathode screw is provided on the other side of the compression chamber, a cooling device is provided at one end of the compression chamber, a water inlet pipe is provided at the other end of the compression chamber, a driving gear is provided at one end of the anode screw close to the cooling device, a plurality of heat dissipation rings are evenly spaced inside the anode screw, a driven gear is provided at one end of the cathode screw close to the driving gear, a plurality of heat dissipation rings are evenly spaced inside the cathode screw, a motor gear is provided on the top of the cooling device, a return pipe is provided at the other end of the cooling device, and a circulating pump is provided at the other end of the return pipe;

[0007] The plurality of heat dissipation rings include an inner fixed ring, a plurality of heat dissipation fins are uniformly arranged on the outside of the inner fixed ring and rotated around the axis, a plurality of outer fixed blocks are respectively arranged on the outside of the plurality of heat dissipation fins, and the plurality of outer fixed blocks are spirally arranged around the axis.

[0008] Furthermore, the compression chamber includes a cavity, an air inlet pipe is provided at one end of the top of the cavity, an air outlet pipe is provided at the other end of the bottom of the cavity, and two cavity end covers are symmetrically provided at both ends of the cavity, the air inlet pipe is fixedly connected to the cavity, the air outlet pipe is fixedly connected to the cavity, and the two cavity end covers are fixedly connected to the cavity.

[0009] Furthermore, the two ends of the anode screw are respectively rotatably connected to the two cavity end covers, one end of the anode screw is rotatably connected to the cooling device, and the other end of the anode screw is rotatably connected to one end of the water inlet pipe. The two ends of the cathode screw are respectively rotatably connected to the two cavity end covers, one end of the cathode screw is rotatably connected to the cooling device, and the other end of the cathode screw is rotatably connected to one end of the water inlet pipe.

[0010] Furthermore, the driving gear is fixedly connected to one end of the anode screw, the driven gear is fixedly connected to one end of the cathode screw, the outer side of the driven gear is meshed with the driving gear, the multiple external fixing blocks are respectively fixedly connected to the inside of the anode screw and the cathode screw, one end of the multiple heat sinks is fixedly connected to the external fixing block, and the other end of the heat sink is fixedly connected to the inner fixing ring.

[0011] Furthermore, the motor gear includes a gear motor, a transmission gear is provided on the transmission shaft of the gear motor, the gear motor is fixedly connected to the top of the cooling device, the transmission gear is fixedly connected to the transmission shaft of the gear motor, and one side of the transmission gear is engaged with the driving gear.

[0012] Furthermore, one end of the return pipe is fixedly connected to the cooling device, the other end of the return pipe is fixedly connected to the top of the circulation pump, and the other end of the water inlet pipe is fixedly connected to the circulation pump.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The present invention comprises a compression chamber, an anode screw disposed on one side of the compression chamber, a cathode screw disposed on the other side of the compression chamber, a cooling device disposed at one end of the compression chamber, a water inlet pipe disposed at the other end of the compression chamber, a return pipe disposed at the other end of the cooling device, and a circulation pump disposed at the other end of the return pipe. During this process, water that has absorbed heat from the anode and cathode screws is extracted by the circulation pump, recovered through the cooling device and the return pipe, and then returned through the water inlet pipe to complete the cooling cycle, thereby facilitating cooling of the screw compressor.

[0015] 2. The present invention comprises an anode screw having multiple heat dissipation rings evenly spaced within it, and a cathode screw having multiple heat dissipation rings evenly spaced within it. The multiple heat dissipation rings comprise an inner retaining ring, the outer portion of which is provided with multiple heat dissipation fins that rotate evenly about an axis. The outer portions of the multiple heat dissipation fins are each provided with multiple external retaining blocks, which are spirally arranged about the axis. In this process, the provision of multiple heat dissipation rings facilitates increasing the heat dissipation area, achieving rapid cooling of the anode and cathode screws and improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the driving gear installation structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the anode screw installation structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the heat dissipation ring installation structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the heat dissipation ring structure of the present utility model;

[0021] Figure numerals: 1, compression chamber; 101, cavity; 102, air inlet pipe; 103, air outlet pipe; 104, cavity end cover; 2, anode screw; 3, cathode screw; 4, cooling device; 5, water inlet pipe; 6, driving gear; 7, heat dissipation ring; 701, inner fixing ring; 702, heat sink; 703, outer fixing block; 8, passive gear; 9, motor gear; 901, gear motor; 902, transmission gear; 10, return pipe; 11, circulation pump. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5The utility model provides a technical solution: a low-noise screw compressor, comprising a compression chamber 1, an anode screw 2 is arranged on one side of the compression chamber 1, a cathode screw 3 is arranged on the other side of the compression chamber 1, a cooling device 4 is arranged at one end of the compression chamber 1, a water inlet pipe 5 is arranged at the other end of the compression chamber 1, a driving gear 6 is arranged at the end of the anode screw 2 close to the cooling device 4, a plurality of heat dissipation rings 7 are evenly spaced inside the anode screw 2, a passive gear 8 is arranged at the end of the cathode screw 3 close to the driving gear 6, a plurality of heat dissipation rings 7 are evenly spaced inside the cathode screw 3, a motor gear 9 is arranged on the top of the cooling device 4, a return pipe 10 is arranged at the other end of the cooling device 4, and a circulating pump 11 is arranged at the other end of the return pipe 10;

[0024] The plurality of heat dissipation rings 7 include an inner fixing ring 701 , the outer portion of the inner fixing ring 701 is provided with a plurality of heat dissipation fins 702 which rotate evenly around the axis, and the outer portions of the plurality of heat dissipation fins 702 are respectively provided with a plurality of outer fixing blocks 703 which are spirally arranged around the axis.

[0025] The compression chamber 1 includes a cavity 101, an air inlet pipe 102 is provided at one end of the top of the cavity 101, an air outlet pipe 103 is provided at the other end of the bottom of the cavity 101, and two cavity end covers 104 are symmetrically provided at both ends of the cavity 101. The air inlet pipe 102 is fixedly connected to the cavity 101, the air outlet pipe 103 is fixedly connected to the cavity 101, and the two cavity end covers 104 are fixedly connected to the cavity 101.

[0026] The two ends of the anode screw 2 are rotatably connected to the two cavity end covers 104, one end of the anode screw 2 is rotatably connected to the cooling device 4, and the other end of the anode screw 2 is rotatably connected to one end of the water inlet pipe 5. The two ends of the cathode screw 3 are rotatably connected to the two cavity end covers 104, one end of the cathode screw 3 is rotatably connected to the cooling device 4, and the other end of the cathode screw 3 is rotatably connected to one end of the water inlet pipe 5. In this example, the provision of the cooling device 4 facilitates rapid cooling of the outflowing hot water, facilitating water circulation and cooling.

[0027] The driving gear 6 is fixedly connected to one end of the anode screw 2, the driven gear 8 is fixedly connected to one end of the cathode screw 3, the outer side of the driven gear 8 is meshed with the driving gear 6, multiple external fixing blocks 703 are fixedly connected to the inside of the anode screw 2 and the cathode screw 3, respectively, and multiple heat sinks 702 are fixedly connected to the external fixing blocks 703 at one end, and the other ends of the heat sinks 702 are fixedly connected to the inner fixing ring 701. In this embodiment, by providing multiple heat sinks 702, it is convenient to increase the heat dissipation area and improve the cooling effect.

[0028] The motor gear 9 includes a gear motor 901, a transmission gear 902 is provided on the transmission shaft of the gear motor 901, the gear motor 901 is fixedly connected to the top of the cooling device 4, the transmission gear 902 is fixedly connected to the transmission shaft of the gear motor 901, and one side of the transmission gear 902 is engaged with the driving gear 6.

[0029] One end of the return pipe 10 is fixedly connected to the cooling device 4 , the other end of the return pipe 10 is fixedly connected to the top of the circulation pump 11 , and the other end of the water inlet pipe 5 is fixedly connected to the circulation pump 11 .

[0030] Working principle: The gear motor 901 drives the transmission gear 902 to rotate, which in turn drives the anode screw 2 inside the driving gear 6 to rotate. The passive gear 8 engages with the driving gear 6, driving the cathode screw 3 and the anode screw 2 to rotate in the opposite direction, thereby compressing the air entering through the air inlet pipe 102 and then discharging it through the air outlet pipe 103. During this process, the circulation pump 11 drives the cooling water to circulate. The cooling water passes through the inside of the anode screw 2 and the cathode screw 3, absorbs the heat on the heat sink 702, is cooled by the cooling device 4, and refluxes into the circulation pump 11 through the return pipe 10, and then enters the inside of the anode screw 2 and the cathode screw 3 through the water inlet pipe 5, realizing circulation cooling.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-noise screw compressor, characterized in that: The invention comprises a compression chamber (1), wherein an anode screw (2) is provided on one side of the compression chamber (1), a cathode screw (3) is provided on the other side of the compression chamber (1), a cooling device (4) is provided at one end of the compression chamber (1), a water inlet pipe (5) is provided at the other end of the compression chamber (1), a driving gear (6) is provided at one end of the anode screw (2) close to the cooling device (4), a plurality of heat dissipation rings (7) are evenly spaced inside the anode screw (2), a driven gear (8) is provided at one end of the cathode screw (3) close to the driving gear (6), a plurality of heat dissipation rings (7) are evenly spaced inside the cathode screw (3), a motor gear (9) is provided on the top of the cooling device (4), a return pipe (10) is provided at the other end of the cooling device (4), and a circulation pump (11) is provided at the other end of the return pipe (10); The plurality of heat dissipation rings (7) include an inner fixing ring (701), the outer portion of the inner fixing ring (701) is provided with a plurality of heat dissipation fins (702) which are uniformly rotated around an axis, and the outer portions of the plurality of heat dissipation fins (702) are respectively provided with a plurality of outer fixing blocks (703), and the plurality of outer fixing blocks (703) are spirally arranged around the axis.

2. A low-noise screw compressor according to claim 1, characterized in that: The compression chamber (1) comprises a cavity (101), an air inlet pipe (102) is provided at one end of the top of the cavity (101), an air outlet pipe (103) is provided at the other end of the bottom of the cavity (101), two cavity end covers (104) are symmetrically provided at both ends of the cavity (101), the air inlet pipe (102) is fixedly connected to the cavity (101), the air outlet pipe (103) is fixedly connected to the cavity (101), and the two cavity end covers (104) are fixedly connected to the cavity (101).

3. A low-noise screw compressor according to claim 2, characterized in that: The two ends of the anode screw (2) are respectively rotatably connected to the two cavity end covers (104), one end of the anode screw (2) is rotatably connected to the cooling device (4), and the other end of the anode screw (2) is rotatably connected to one end of the water inlet pipe (5); the two ends of the cathode screw (3) are respectively rotatably connected to the two cavity end covers (104), one end of the cathode screw (3) is rotatably connected to the cooling device (4), and the other end of the cathode screw (3) is rotatably connected to one end of the water inlet pipe (5).

4. A low-noise screw compressor according to claim 3, characterized in that: The driving gear (6) is fixedly connected to one end of the anode screw (2), the driven gear (8) is fixedly connected to one end of the cathode screw (3), the outer side of the driven gear (8) is meshed with the driving gear (6), the plurality of external fixing blocks (703) are respectively fixedly connected to the inside of the anode screw (2) and the cathode screw (3), one end of the plurality of heat sinks (702) is fixedly connected to the external fixing blocks (703), and the other end of the heat sink (702) is fixedly connected to the inner fixing ring (701).

5. A low-noise screw compressor according to claim 4, characterized in that: The motor gear (9) includes a gear motor (901), a transmission gear (902) is provided on the transmission shaft of the gear motor (901), the gear motor (901) is fixedly connected to the top of the cooling device (4), the transmission gear (902) is fixedly connected to the transmission shaft of the gear motor (901), and one side of the transmission gear (902) is meshed with the driving gear (6).

6. The low-noise screw compressor according to claim 1, characterized in that: One end of the return pipe (10) is fixedly connected to the cooling device (4), the other end of the return pipe (10) is fixedly connected to the top of the circulation pump (11), and the other end of the water inlet pipe (5) is fixedly connected to the circulation pump (11).

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