CN107191416B

CN107191416B - Filter device, compressor and rotary mechanical equipment

Info

Publication number: CN107191416B
Application number: CN201710561587.7A
Authority: CN
Inventors: 蒋彩云; 张治平; 钟瑞兴; 蒋楠; 陈玉辉; 周义; 刘增岳; 雷连冬; 欧阳鑫旺; 陈健
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2017-07-11
Filing date: 2017-07-11
Publication date: 2023-06-30
Anticipated expiration: 2037-07-11
Also published as: CN107191416A

Abstract

The present invention provides a filtering device comprising: the shell assembly is provided with an oil inlet and an oil outlet; the filter assembly is arranged in the shell assembly and is communicated with the oil inlet; the cooling component is arranged in the shell component and can cool the lubricating oil filtered by the filtering component; lubricating oil enters the filtering assembly from the oil inlet and flows into the shell assembly after being filtered, and flows out of the oil outlet after being cooled by the cooling assembly. The filtering function and the cooling function are integrated on one structure, so that occupied space is reduced, leakage points are reduced while the structure is simplified, the complexity of a compressor connecting pipeline is reduced, the reliability is improved, and meanwhile, the flow of lubricating oil can be reduced, so that the pressure loss is reduced. The invention also provides a compressor and rotary mechanical equipment.

Description

Filter device, compressor and rotary mechanical equipment

Technical Field

The invention relates to the technical field of mechanical equipment, in particular to a filtering device, a compressor and rotary mechanical equipment.

Background

In general, in rotary machines such as centrifugal compressors, blowers, and air compressors, it is necessary to cool and lubricate an operating portion with lubricating oil. Since particles in the lubricating oil cause wear to the operating parts, the lubricating oil needs to be filtered. Meanwhile, the temperature of the lubricating oil rises after passing through the operation part, and the lubricating oil needs to be cooled and recycled. Therefore, in the oil path system, two devices of an oil filter and an oil cooler are needed, and lubricating oil needs to pass through the two devices in sequence to finish filtering, purifying and cooling. However, due to the existence of the oil filter and the oil cooler, more space is occupied, so that a pipeline is complex, and meanwhile, the flow of lubricating oil is long, so that the reliability is reduced, and the cooling effect is affected.

Disclosure of Invention

In view of this, it is necessary to provide a filtering device capable of integrating a filtering function with a cooling function to reduce an occupied space, a compressor including the filtering device, and a rotary machine including the filtering device, aiming at the problem that the existing lubricating oil is large in occupied space caused by filtering through an oil filter and then cooling through an oil cooler.

The above purpose is achieved by the following technical scheme:

a filtration device comprising:

the shell assembly is provided with an oil inlet and an oil outlet;

the filter assembly is arranged in the shell assembly and is communicated with the oil inlet;

the cooling component is arranged in the shell component and can cool the lubricating oil filtered by the filtering component;

lubricating oil enters the filtering assembly from the oil inlet and flows into the shell assembly after being filtered, and flows out of the oil outlet after being cooled by the cooling assembly.

In one embodiment, the cooling assembly is disposed outside of the filter assembly.

In one embodiment, the cooling assembly comprises a cooling part, a refrigerant inlet pipe and a refrigerant outlet pipe, one end of the cooling part is connected with the refrigerant inlet pipe, and the other end of the cooling part is connected with the refrigerant outlet pipe;

the cooling part is arranged on the outer side of the filtering part in a surrounding mode, and the refrigerant inlet pipe and the refrigerant outlet pipe penetrate through the shell assembly respectively to extend out.

In one embodiment, the cooling part comprises a first cooling pipe and a second cooling pipe, the first cooling pipe is arranged on the inner side of the second cooling pipe, and a preset interval exists between the first cooling pipe and the second cooling pipe;

the first cooling pipe and the second cooling pipe are all spirally arranged.

In one embodiment, one end of the first cooling pipe is connected with one end of the second cooling pipe, the other end of the first cooling pipe is communicated with the refrigerant inlet pipe, and the other end of the second cooling pipe is connected with the refrigerant outlet pipe.

In one embodiment, the filtering device further comprises a partition plate, wherein the partition plate is located between the first cooling pipe and the second cooling pipe, one end of the partition plate is fixed on the shell assembly, and a gap is formed between the other end of the partition plate and the shell assembly.

In one embodiment, the partition is provided in a cylindrical shape;

the height of the partition plate along the axial direction is 0.3-0.9 times of the height of the first cooling pipe along the spiral axial direction.

In one embodiment, the filter assembly comprises a filter element, a top cover and a bottom cover, wherein the top cover and the bottom cover are respectively arranged at two ends of the filter element, the top cover seals the filter element, an oil inlet is formed in the bottom cover, and the oil inlet is communicated with the oil inlet and the inner cavity of the filter assembly.

In one embodiment, the housing assembly comprises a housing, a base and a cover plate, wherein the base and the cover plate are respectively installed at two ends of the housing, the bottom cover is fixed on the base, and the top cover is arranged on the cover plate;

the oil inlet is positioned on the base, and the oil outlet is positioned on the shell.

In one embodiment, the housing assembly further comprises a bracket for fixing the filter device, one end of the bracket is disposed on the housing, and the other end of the bracket extends in a direction away from the housing.

In one embodiment, the shell assembly further comprises an oil inlet pipe, an oil outlet pipe, a connector and a stop valve, wherein the oil inlet pipe is installed on the oil inlet of the base through the connector, and the oil outlet pipe is installed in the oil outlet of the shell;

the two stop valves are respectively arranged on the oil inlet pipe and the oil outlet pipe, and the stop valves can control the on-off of the oil inlet pipe and the oil outlet pipe.

In one embodiment, the filtering device further comprises a fluorine injection nozzle, the shell is further provided with a vacuum hole, the vacuum hole is communicated with the interior of the shell, and the fluorine injection nozzle is installed in the vacuum hole.

Also relates to a compressor comprising a housing and a filter device according to any of the technical features described above;

the filter device is mounted in the housing.

Also relates to a rotary mechanical device comprising a filtering device according to any of the technical features described above.

After the technical scheme is adopted, the invention has the beneficial effects that:

according to the filtering device, the compressor and the rotary mechanical equipment, the cooling assembly is arranged on the outer side of the filtering assembly, so that lubricating oil enters the filtering assembly through the oil inlet of the shell assembly and flows into the shell assembly after being filtered by the filtering assembly, at the moment, the cooling assembly can cool the filtered lubricating oil, and meanwhile, the purposes of filtering and cooling are achieved, the problem that the occupied space is large due to the fact that the conventional lubricating oil is filtered by the oil filter and then cooled by the oil cooler is effectively solved, the filtering function and the cooling function are integrated on one structure, occupied space is reduced, leakage points are reduced while the structure is simplified, the complexity of a connecting pipeline of the compressor is reduced, the reliability is improved, meanwhile, the flow of the lubricating oil is reduced, and the pressure loss is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of a filter device according to an embodiment of the present invention;

wherein:

100-a filtration device;

110-a housing assembly;

111-a housing;

112-a base;

113-cover plate;

114-a bracket;

115-an oil inlet pipe;

116-an oil outlet pipe;

117-linker;

120-a filter assembly;

121-top cap;

122-bottom cover;

123-a filter element;

130-a cooling assembly;

131-a cooling part;

1311—a first cooling tube;

1312-a second cooling tube;

132-refrigerant inlet pipe;

133-refrigerant outlet pipe;

140-a fluorine injection nozzle;

150—a first seal;

160-a second seal;

170-separator.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following further details the filtering device, the compressor and the rotating machinery according to the present invention by means of examples with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Referring to fig. 1, fig. 1 is a schematic cross-sectional view of a filtering apparatus 100 according to an embodiment of the present invention. The present invention provides a filtering apparatus 100, which is used in a compressor to filter and cool lubricating oil in the compressor, the filtering apparatus 100 comprising a filter unit for filtering lubricating oil; the filter device 100 of the present invention may also be used in rotating machinery, such as blowers, air compressors, etc., to filter and cool lubricating oil therein. Of course, the filter device 100 of the present invention can also be used in other types of equipment that require filtration and cooling. The filtering device 100 of the invention can integrate the filtering function and the cooling function on one structure, simultaneously achieve the purposes of filtering and cooling, reduce occupied space, simplify the structure, reduce leakage points, reduce the complexity of a connecting pipeline of a compressor, improve reliability, and simultaneously reduce the flow of lubricating oil so as to reduce pressure loss.

In the present invention, the filter device 100 includes a housing assembly 110, a filter assembly 120, and a cooling assembly 130. The housing assembly 110 is capable of accommodating various components of the filter device 100, which are installed in the housing assembly 110, and the filtering and cooling operations of the filter device 100 are completed in the housing assembly 110. The housing assembly 110 has a receiving chamber. The shell assembly 110 is provided with an oil inlet and an oil outlet, and lubricating oil enters the shell assembly 110 through the oil inlet and flows out through the oil outlet. The filter assembly 120 and the cooling assembly 130 are both mounted in the receiving chamber of the housing assembly 110. The filter assembly 120 is used for filtering the lubricating oil, so that impurities in the lubricating oil are prevented from affecting the lubrication of operating components in the compressor, and the reliability of the compressor in operation is improved. The cooling assembly 130 is used for cooling the lubricating oil, so that the lubricating oil can lubricate the operating components in the compressor, simultaneously reduce the temperature of the operating components, further improve the operation reliability of the compressor, and ensure the service performance.

The filter assembly 120 communicates with the oil inlet, and the cooling assembly 130 can cool the lubricant filtered by the filter assembly 120. Lubricating oil enters the filter assembly 120 from the oil inlet, is cooled by the cooling assembly 130 and flows out from the oil outlet after being filtered. The lubricating oil directly enters the filter assembly 120 through the oil inlet of the shell assembly 110 and is filtered, the lubricating oil filtered by the filter assembly 120 can be contacted with the cooling assembly 130, the temperature of the lubricating oil is reduced through the cooling assembly 130, the cooled lubricating oil flows out through the oil outlet of the shell assembly 110, the filtering purification and cooling operation of the lubricating oil are completed, the running reliability of the compressor is improved, and the service performance of the compressor is ensured.

The filtering device 100 integrates the filtering component 120 and the cooling component 130 into a whole, so that the filtering device 100 has both a filtering function and a cooling function, and thus, after the lubricating oil is filtered by the filtering component 120, the lubricating oil is cooled by the cooling component 130, the purposes of filtering, purifying and cooling the lubricating oil can be realized, and meanwhile, the purposes of filtering and cooling are achieved, the problem that the occupied space is large due to the fact that the lubricating oil is filtered by the oil filter and then cooled by the oil cooler at present is effectively solved, the occupied space is reduced, the structure is simplified, meanwhile, the leakage point is reduced, the complexity of a connecting pipeline of a compressor is reduced, the reliability is improved, and meanwhile, the flow of the lubricating oil can be reduced, so that the pressure loss is reduced.

Further, the cooling assembly 130 is disposed outside the filter assembly 120. Thus, the lubricating oil directly enters the filtering component 120 through the oil inlet of the shell component 110 to be filtered, the lubricating oil filtered by the filtering component 120 enters the shell component 110, at this time, the lubricating oil can be contacted with the cooling component 130 outside the filtering component 120 in the shell component 110, the temperature of the lubricating oil is reduced through the cooling component 130, the cooled lubricating oil flows out through the oil outlet of the shell component 110, the filtering, purifying and cooling operation of the lubricating oil is completed, the running reliability of the compressor is improved, and the service performance of the compressor is ensured. Preferably, the cooling assembly 130 is disposed around the outside of the filtering assembly 120, so that the contact area between the lubricating oil and the cooling assembly 130 can be increased, and the cooling effect of the lubricating oil can be improved. Of course, in other embodiments of the present invention, the cooling assembly 130 may also be disposed inside the filter assembly 120. The lubricating oil can enter the inner side of the filter assembly 120 from the outer side of the filter assembly 120 to realize the filtering operation of the lubricating oil, and then the lubricating oil contacts the cooling assembly 130 on the inner side of the filter assembly 120 to realize the cooling operation of the lubricating oil. This also enables the filter device to integrate the filter function with the cooling function.

As an embodiment, the filter assembly 120 includes a filter member 123, a top cover 121, and a bottom cover 122, wherein the top cover 121 and the bottom cover 122 are respectively mounted at two ends of the filter member 123, the top cover 121 seals the filter member 123, and the bottom cover 122 is provided with an oil inlet, which communicates with the oil inlet and the inner cavity of the filter assembly 120. The filtering component 120 is used for filtering the lubricating oil to remove impurities in the lubricating oil, avoid abrasion of operating components of the compressor caused by the impurities in the lubricating oil, and improve the service performance of the compressor. The oil inlet on the bottom cover 122 corresponds to the position of the oil inlet of the housing assembly 110 and communicates with each other. The lubricating oil entering the shell assembly 110 through the oil inlet can directly enter the filter component 123 through the oil inlet, and the top cover 121 is arranged to seal the filter component 123, so that the lubricating oil can only enter the accommodating chamber of the shell assembly 110 after being filtered by the filter component 123, and the filtering and purifying operation of the lubricating oil is realized. Moreover, the top cover 121, the bottom cover 122 and the filtering part 123 are fixedly connected in an adhesive manner, so that the leakage problem caused by that lubricating oil is not filtered by the filtering part 123 is avoided, and the reliability of the filtering of the lubricating oil is ensured.

Preferably, the filtering component 123 may be a filter screen, and of course, may be other components capable of achieving a filtering function. In addition, the material of the filter screen is not limited in principle, as long as the filter screen can filter the refrigerant. In addition, in order to achieve different filtering effects, the number of layers of the filter screen can be one to multiple, when the number of layers of the filter screen is multiple, the multiple layers of the filter screen are sleeved layer by layer according to the filtering precision, and the filtering precision of the inner cavity where the filter screen is closer is lower.

As an embodiment, the housing assembly 110 includes a housing 111, a base 112 and a cover 113, the base 112 and the cover 113 are respectively mounted at two ends of the housing 111, the bottom cover 122 is fixed on the base 112, and the top cover 121 is disposed on the cover 113. The housing 111, the base 112 and the cover 113 enclose a receiving chamber, and the filter assembly 120 and the cooling assembly 130 are disposed in the receiving chamber. The lubricating oil can be stored in the accommodating chamber after being filtered by the filtering component 120, and is cooled by the cooling component 130 outside the filtering component 120, so that the filtering and cooling of the lubricating oil are realized. The oil inlet is located on the base 112, and the oil outlet is located on the housing 111. Lubricating oil enters the inner cavity of the filtering part 123 through an oil inlet on the base 112 and an oil inlet on the bottom cover 122, and due to the sealing effect of the top cover 121, the lubricating oil can only flow into the accommodating cavity of the shell assembly 110 after being filtered by the filtering part 123 and is contacted with the cooling assembly 130 in the shell assembly 110 for cooling, and the cooled lubricating oil flows out through the oil outlet. Further, the distance of the oil outlet on the housing 111 to the base 112 is 0.2 to 0.8 times the height of the housing 111. This enables the lubrication oil to be sufficiently contacted by the filter assembly 120, increases the cooling area, and ensures the cooling effect.

In order to prevent the lubricant from leaking into the receiving chamber through the gap between the bottom cover 122 and the base 112, a first seal 150 is provided at the junction of the bottom cover 122 and the base 112 to ensure sealing performance between the bottom cover 122 and the base 112. The housing 111 is a flange-type cylindrical housing, the housing 111 is fixed to the base 112 by welding, and the cover 113 is fixed to the housing 111 by screws. In order to secure sealing performance between the top cover 121 and the cover plate 113, a second sealing member 160 is further provided between the top cover 121 and the cover plate 113. Preferably, the first seal 150 and the second seal 160 are sealing gaskets, but other types of sealing members are also possible.

It should be noted that, the external thread is provided on the bottom cover 122, the matched internal thread is provided on the inner wall of the oil outlet of the base 112, the bottom cover 122 is fixed on the base 112 in a screwing mode, so as to ensure that the filter assembly 120 is reliably fixed in the base 112, prevent unfiltered lubricating oil from directly entering the accommodating chamber due to the position of the filter assembly 120 being shifted during filtering, improve the reliability of the filtering of the lubricating oil, and further improve the service performance of the compressor. Correspondingly, the top cover 121 is arranged in a hexagonal shape. After the top cover 121, the bottom cover 122 and the filtering component 123 are fixedly arranged, the hexagonal top cover 121 can conveniently screw the bottom cover 122 of the filtering component 120 onto the base 112, so that the filtering component 120 is reliably fixed. Of course, in other embodiments of the present invention, the bottom cover 122 may be fastened in the base 112 by fastening.

Further, the housing assembly 110 further includes a bracket 114 for fixing the filter device 100, one end of the bracket 114 is disposed on the housing 111, and the other end of the bracket 114 extends in a direction away from the housing 111. The bracket 114 is used to facilitate the installation and fixation of the filter device 100, so that the position of the filter device 100 is fixed, and the influence of the position fluctuation of the filter device 100 on the filtering and cooling effects is avoided. The bracket 114 is provided with a fixing hole, and the bracket 114 is mounted on the housing of the compressor through the fixing hole, thereby realizing the mounting and fixing of the filter device 100.

Still further, the housing assembly 110 further includes an oil inlet pipe 115, an oil outlet pipe 116, and a joint 117, the oil inlet pipe 115 is installed on the oil inlet of the base 112 through the joint 117, and the oil outlet pipe 116 is installed in the oil outlet of the housing 111. The oil inlet pipe 115 is welded in the oil inlet of the base 112 through the joint 117, and the joint 117 is communicated with the oil inlet pipe 115 and the inner cavity of the filter part 123, so that lubricating oil directly enters the joint 117 through the oil inlet pipe 115 and then enters the inner cavity of the filter part 123 through the joint 117 through the oil inlet of the base 112 for filtering. The oil outlet pipe 116 is fixed in the oil outlet of the shell 111 in a welding mode, the oil outlet pipe 116 is communicated with the accommodating cavity, and the filtered and cooled lubricating oil is sent out through the oil outlet pipe 116.

Further, the filtering device 100 further includes two stop valves, which are respectively disposed on the oil inlet pipe 115 and the oil outlet pipe 116, and the stop valves can control the on-off of the oil inlet pipe 115 and the oil outlet pipe 116. When the filter assembly 120 needs to be replaced by the filter apparatus 100, both shut-off valves are closed so that the oil inlet pipe 115 and the oil outlet pipe 116 cannot be in and out of the lubricating oil, so that the oil inlet pipe 115 and the oil outlet pipe 116 are isolated from the inside of the compressor. The screw member on the cover plate 113 is unscrewed, the cover plate 113 is opened, and the filter assembly 120 is directly replaced. After the replacement is completed, the cover plate 113 is fixed on the shell through a screw; the two shut-off valves are then opened again to allow the lubricant to flow.

The filter device 100 further includes a fluorine injection nozzle 140, and the housing 111 is further provided with a vacuum hole, the vacuum hole being communicated with the interior of the housing 111, and the fluorine injection nozzle 140 being mounted in the vacuum hole. The fluorine injecting nozzle 140 is used to realize the vacuum pumping after the maintenance of the filter assembly 120, so as to prevent air from being mixed into the compressor and improve the operation reliability of the compressor. After the filter assembly 120 is replaced, the filter device 100 is vacuumized through the fluorine injection nozzle 140 to prevent air from being mixed into the compressor, and then two stop valves are opened, so that the compressor can work normally.

As an embodiment, the cooling unit 130 includes a cooling portion 131, a refrigerant inlet pipe 132, and a refrigerant outlet pipe 133, one end of the cooling portion 131 is connected to the refrigerant inlet pipe 132, and the other end of the cooling portion 131 is connected to the refrigerant outlet pipe 133. The cooling portion 131 is disposed around the outside of the filter 123, and the refrigerant inlet tube 132 and the refrigerant outlet tube 133 extend through the housing assembly 110. The refrigerant enters the cooling portion 131 through the refrigerant inlet pipe 132, the cooling portion 131 cools the lubricating oil filtered in the housing assembly 110, and the refrigerant having absorbed heat is sent out through the refrigerant outlet pipe 133 in the cooling portion 131. The cooling effect of the lubricating oil is ensured by the cooling effect of the lubricating oil by the flowing of the refrigerant in the cooling part 131. The refrigerant inlet pipe 132 and the refrigerant outlet pipe 133 pass through the base 112 of the housing assembly 110, respectively, and are fixed by welding. In this embodiment, the refrigerant inlet pipe 132 and the refrigerant outlet pipe 133 are disposed on the same side of the oil inlet pipe 115, as shown in fig. 1.

Further, the cooling portion 131 includes a first cooling tube 1311 and a second cooling tube 1312, the first cooling tube 1311 is disposed inside the second cooling tube 1312, and a predetermined distance exists between the first cooling tube 1311 and the second cooling tube 1312. That is, the first cooling tube 1311 and the second cooling tube 1312 are disposed in a double-layer structure, the first cooling tube 1311 is disposed in an inner layer, the second cooling tube 1312 is disposed in an outer layer, the double-layer first cooling tube 1311 and the second cooling tube 1312 can be respectively contacted with the filtered lubrication, the contact area between the lubrication oil and the cooling portion 131 is increased, the lubrication oil and the cooling portion 131 can be fully contacted, the heat exchange efficiency is improved, the rapid cooling of the refrigerant is realized, and the cooling effect is improved. Preferably, one end of the first cooling tube 1311 is connected to one end of the second cooling tube 1312, the other end of the first cooling tube 1311 is connected to the refrigerant inlet tube 132, and the other end of the second cooling tube 1312 is connected to the refrigerant outlet tube 133. That is, the first cooling tube 1311 connected to the refrigerant inlet tube 132 is closer to the filter assembly 120, which can improve the cooling effect of the lubricating oil and improve the cooling efficiency.

The first cooling tube 1311 and the second cooling tube 1312 are each spirally wound. The first cooling tube 1311 and the second cooling tube 1312, which are spirally provided, can further increase the contact area between the lubricating oil and the cooling portion 131, and improve the cooling efficiency. Meanwhile, the first cooling tube 1311 and the second cooling tube 1312 which are spirally arranged can ensure that the filtered lubricating oil around the filter assembly 120 is in contact with the cooling part 131, thereby ensuring the cooling effect. In this way, the refrigerant flows out of the refrigerant inlet pipe 132 through the inner spiral pipe of the first cooling pipe 1311 and the outer spiral pipe of the second cooling pipe 1312, and then flows out of the refrigerant outlet pipe 133. Of course, in another embodiment of the present invention, the first cooling tube 1311 and the second cooling tube 1312 may be disposed in a vertical loop, that is, the first cooling tube 1311 and the second cooling tube 1312 flow to the top end along the height direction shown in fig. 1, and then flow to the bottom end from the top end, so as to be disposed in a circulating manner, so that the first cooling tube 1311 and the second cooling tube 1312 are disposed around the filter assembly 120, and the lubricating oil filtered by the filter assembly 120 can contact the cooling portion 131, thereby performing cooling operation and improving reliability. In other embodiments of the present invention, the first cooling tube 1311 and the second cooling tube 1312 may be disposed in a staggered arrangement, an inclined arrangement, or other arrangement that increases the contact area of the cooling portion 131 with the lubricating oil.

In addition, in order to enhance the cooling effect of the cooling assembly 130, the filtering apparatus 100 further includes a partition 170, the partition 170 is located between the first cooling tube 1311 and the second cooling tube 1312, and one end of the partition 170 is fixed to the housing assembly 110, and a gap is formed between the other end and the housing assembly 110. The bottom end of the diaphragm 170 is fixed to the base 112 by welding, and a certain space exists between the top end of the diaphragm 170 and the cover plate 113 of the housing assembly 110. The lubricating oil filtered by the filter assembly 120 is stored between the separator 170 and the filter assembly 120, and is cooled by the first cooling pipe 1311; when the lubricating oil between the diaphragm 170 and the filter assembly 120 is excessive, the lubricating oil overflows from the top end of the diaphragm 170 and enters between the diaphragm 170 and the housing 111, and at this time, the lubricating oil is cooled down by the second cooling tube 1312; when the lubricant between the diaphragm 170 and the housing 111 reaches the position of the oil outlet, the lubricant flows out through the oil outlet pipe 116 in the oil outlet.

Still further, the diaphragm 170 is provided in a cylindrical shape. The partition 170 is formed in a shape corresponding to the shape of the first cooling tube 1311 and the second cooling tube 1312 in a spiral configuration to separate the first cooling tube 1311 from the second cooling tube 1312. The height of the partition 170 in the axial direction is 0.3 to 0.9 times the height of the first cooling tube 1311 in the axial direction of the spiral. In this way, more lubricating oil can be arranged between the partition 170 and the filtering component 120, the contact area between the first cooling pipe 1311 and the lubricating oil is increased, the waste of cold energy is avoided, and the cooling effect is improved.

The invention also provides a compressor, which comprises a shell and the filtering device 100 in the embodiment, wherein the filtering device 100 is arranged in the shell. The compressor of the invention filters and cools the lubricating oil through the filter device 100, thereby achieving the purposes of removing impurities in the lubricating oil and reducing the temperature of the lubricating oil. Because the filter device 100 has the functions of filtering and cooling, the compressor does not need to be provided with two parts for filtering and cooling operation respectively, the occupied space can be reduced, the complexity of a pipeline is reduced, the structure is simplified, meanwhile, leakage points are reduced, the flow of lubricating oil can be reduced, the pressure loss is reduced, and the running reliability of the compressor is improved.

The invention also provides a rotary machine comprising the filtering device 100 of the above embodiment. The rotary mechanical equipment of the invention adopts the filtering device 100 to realize the filtration and cooling of the lubricating oil, thereby achieving the purposes of removing impurities in the lubricating oil and reducing the temperature of the lubricating oil. Because the filtering device 100 has the functions of filtering and cooling, the rotating mechanical equipment does not need to be provided with two parts for filtering and cooling operation respectively, the occupied space can be reduced, the complexity of a pipeline is reduced, the structure is simplified, meanwhile, leakage points are reduced, the flow of lubricating oil can be reduced, the pressure loss is reduced, and the running reliability of the rotating mechanical equipment is improved. Preferably, the rotating machinery may refer to a blower, air compressor, or other type of rotating equipment.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be regarded as the description scope of the present specification.

The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A filter device, comprising:

the shell assembly (110) is provided with an oil inlet and an oil outlet;

the filter assembly (120) is arranged in the shell assembly (110), and the filter assembly (120) is communicated with the oil inlet;

a cooling assembly (130) disposed in the housing assembly (110), the cooling assembly (130) being capable of cooling the lubricating oil filtered by the filter assembly (120);

the oil outlet is arranged on the side face of the shell assembly (110) and is communicated with a space where the cooling assembly (130) in the shell assembly (110), lubricating oil enters the filtering assembly (120) from the oil inlet and flows into the shell assembly (110) after being filtered, and the lubricating oil flows out from the oil outlet after being cooled by the cooling assembly (130).

2. The filter device according to claim 1, wherein the cooling assembly (130) is arranged outside the filter assembly (120).

3. The filtering device according to claim 2, wherein the cooling unit (130) includes a cooling portion (131), a refrigerant inlet pipe (132) and a refrigerant outlet pipe (133), one end of the cooling portion (131) is connected to the refrigerant inlet pipe (132), and the other end of the cooling portion (131) is connected to the refrigerant outlet pipe (133);

the cooling part (131) is arranged on the outer side of the filtering component (123) of the filtering component (120) in a surrounding mode, and the refrigerant inlet pipe (132) and the refrigerant outlet pipe (133) penetrate through the shell component (110) respectively to extend out.

4. A filter device according to claim 3, wherein the cooling portion (131) comprises a first cooling tube (1311) and a second cooling tube (1312), the first cooling tube (1311) being arranged inside the second cooling tube (1312), a predetermined distance being present between the first cooling tube (1311) and the second cooling tube (1312);

the first cooling pipe (1311) and the second cooling pipe (1312) are both spirally arranged.

5. The filtering device according to claim 4, wherein one end of the first cooling pipe (1311) is connected to one end of the second cooling pipe (1312), the other end of the first cooling pipe (1311) is communicated with the refrigerant inlet pipe (132), and the other end of the second cooling pipe (1312) is connected to the refrigerant outlet pipe (133).

6. The filter device of claim 4, wherein the filter device (100) further comprises a partition (170), the partition (170) is located between the first cooling tube (1311) and the second cooling tube (1312), and one end of the partition (170) is fixed to the housing assembly (110), and a gap is formed between the other end and the housing assembly (110).

7. The filter device according to claim 6, wherein the partition (170) is provided in a cylindrical shape;

the height of the partition plate (170) in the axial direction is 0.3-0.9 times the height of the first cooling pipe (1311) in the spiral axial direction.

8. The filtering device according to any one of claims 2 to 7, wherein the filtering assembly (120) comprises a filtering component (123), a top cover (121) and a bottom cover (122), the top cover (121) and the bottom cover (122) are respectively installed at two ends of the filtering component (123), the top cover (121) seals the filtering component (123), an oil inlet is formed in the bottom cover (122), and the oil inlet is communicated with the oil inlet and the inner cavity of the filtering assembly (120).

9. The filtering device according to claim 8, wherein the housing assembly (110) includes a housing (111), a base (112) and a cover plate (113), the base (112) and the cover plate (113) are respectively mounted at two ends of the housing (111), the bottom cover (122) is fixed on the base (112), and the top cover (121) is disposed on the cover plate (113);

the oil inlet is located on the base (112), and the oil outlet is located on the shell (111).

10. The filter device according to claim 9, wherein the housing assembly (110) further comprises a bracket (114) for fixing the filter device (100), one end of the bracket (114) being provided on the housing (111), the other end of the bracket (114) extending in a direction away from the housing (111).

11. The filter device according to claim 9, wherein the housing assembly (110) further comprises an oil inlet pipe (115), an oil outlet pipe (116), a joint (117) and two shut-off valves, the oil inlet pipe (115) being mounted on the oil inlet of the base (112) by the joint (117), the oil outlet pipe (116) being mounted in the oil outlet of the housing (111);

the two stop valves are respectively arranged on the oil inlet pipe (115) and the oil outlet pipe (116), and the stop valves can control the on-off of the oil inlet pipe (115) and the oil outlet pipe (116).

12. The filter device according to claim 9, wherein the filter device (100) further comprises a fluorine injection nozzle (140), and wherein a vacuum hole is further provided in the housing (111), the vacuum hole being in communication with the interior of the housing (111), and wherein the fluorine injection nozzle (140) is mounted in the vacuum hole.

13. A compressor, characterized in that it comprises a casing and a filtering device (100) according to any one of claims 1 to 12;

the filter device (100) is mounted in the housing.

14. Rotary mechanical device, characterized in that it comprises a filtering device (100) according to any one of claims 1 to 12.