CN216975230U - Compressor and preset system thereof - Google Patents
Compressor and preset system thereof Download PDFInfo
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- CN216975230U CN216975230U CN202220160183.3U CN202220160183U CN216975230U CN 216975230 U CN216975230 U CN 216975230U CN 202220160183 U CN202220160183 U CN 202220160183U CN 216975230 U CN216975230 U CN 216975230U
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Abstract
The utility model relates to the technical field of machinery, in particular to a compressor which comprises a machine body, a movement assembly, a back pressure valve, an adjustable throttle valve and a throttling element. The machine body is internally provided with an air suction cavity, a back pressure cavity and an exhaust cavity, and is also internally provided with a first communicating channel, a second communicating channel and a third communicating channel, wherein the first communicating channel and the second communicating channel are respectively communicated with the air suction cavity and the back pressure cavity, and the third communicating channel is communicated with the back pressure cavity and the exhaust cavity. The motion subassembly sets up between back pressure chamber and exhaust chamber, and the motion subassembly includes driving disk and quiet dish, and the driving disk setting is close to one side in the back pressure chamber at quiet dish. The back pressure valve is arranged on the first communication channel, the adjustable throttle valve is arranged on the second communication channel, and the throttling element is arranged on the third communication channel. The utility model also relates to a pre-adjusting system of the compressor, which is used for pre-adjusting the compressor, so that the dynamic disc and the static disc can be prevented from being separated, and the excessive abrasion between the dynamic disc and the static disc can be prevented.
Description
Technical Field
The utility model relates to the technical field of machinery, in particular to a compressor and a pre-adjusting system thereof.
Background
A compressor is a fluid machine for lifting low-pressure gas into high-pressure gas, and a conventional scroll compressor generally includes a movable plate and a stationary plate which are matched with each other. When the compressor works, high-pressure gas can be generated between the movable disc and the static disc, the high-pressure gas can generate axial gas force of the movable disc, the movable disc and the static disc are separated from each other, and inner leakage is formed. For the separation of avoiding driving disk and quiet dish, the driving disk back is provided with the back pressure chamber, and the back pressure intracavity has the atmospheric pressure of specific pressure, and the driving disk backpressure lifting force that this atmospheric pressure formed pushes the driving disk to quiet dish to be greater than the gaseous power of driving disk axial, can avoid breaking away from of driving disk and quiet dish. However, when the pressure in the back pressure cavity is too high, the back pressure lifting force of the movable disc is obviously higher than the gas force of the axial force of the movable disc, and the movable disc is tightly contacted with the static disc to cause the abrasion between the movable disc and the static disc to be aggravated, so that the reliability of the compressor is reduced.
Therefore, a compressor and a pre-conditioning system thereof are needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a compressor, which can adjust the pressure in a back pressure cavity, prevent a movable disc from separating from a static disc, ensure the normal work of the compressor, avoid the excessive abrasion between the movable disc and the static disc and prolong the service life of the compressor.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a compressor, comprising:
the air suction device comprises a machine body, wherein an air suction cavity, a back pressure cavity and an exhaust cavity are arranged in the machine body, a first communicating channel, a second communicating channel and a third communicating channel are further arranged in the machine body, the first communicating channel and the second communicating channel can be communicated with the air suction cavity and the back pressure cavity, and the third communicating channel is communicated with the back pressure cavity and the exhaust cavity;
the moving assembly is arranged between the back pressure cavity and the exhaust cavity and comprises a moving disc and a static disc, and the moving disc is arranged on one side, close to the back pressure cavity, of the static disc;
a back pressure valve disposed on the first communication passage;
an adjustable throttle valve provided on the second communication passage;
a throttling element disposed on the third communication passage.
As a preferred scheme of the compressor, the adjustable throttle valve comprises a valve casing and a valve core, the valve casing is provided with a valve cavity in a penetrating manner, two ends of the valve cavity are respectively communicated with the back pressure cavity and the suction cavity, and the valve core is used for adjusting the minimum flow area of airflow in the valve cavity.
As a preferable scheme of the compressor, a circular table is annularly arranged in the valve cavity, a tapered portion is arranged at the end of the valve core, the circular table is matched with the tapered portion to adjust the minimum flow area, and a conical angle formed by extending the circular table is larger than that of the tapered portion.
As a preferable mode of the compressor, a side air guide groove is penetratingly provided on a side wall of the valve element along an axial direction of the valve housing, an end face air guide groove is penetratingly provided at one end of the valve element, at which the tapered portion is not provided, along a radial direction, and the side air guide groove is communicated with the end face air guide groove.
As a preferable aspect of the compressor, the adjustable throttle valve further includes an adjusting member for adjusting a relative position of the valve spool in the valve housing.
In a preferred embodiment of the compressor, the adjuster has an air guide center hole extending through an axis of the valve housing.
As a preferable mode of the compressor, the valve core and the adjusting member are both disposed in the valve cavity, and the adjusting member is disposed at an end of the valve core where the tapered portion is not disposed.
Preferably, the adjusting member is screw-engaged with an inner wall of the valve housing.
As a preferable mode of the compressor, the adjustable throttle valve is configured to enable a pressure difference a between the back pressure chamber and the suction chamber and a pressure difference B between the discharge chamber and the suction chamber to satisfy a-K × B, and K is in a range of 0.2 to 0.7.
Another object of the present invention is to provide a pre-adjusting system for a compressor, which can pre-adjust the pressure in the back pressure chamber of the compressor, so as to prevent the movable platen from separating from the stationary platen, ensure the normal operation of the compressor, prevent the excessive abrasion between the movable platen and the stationary platen, and prolong the service life of the compressor.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a system for presetting a compressor as described above, comprising:
the high-pressure gas cylinder is communicated with the exhaust cavity through a communicating pipeline;
the pressure regulating valve is arranged on the communicating pipeline;
a first pressure gauge for measuring pressure within the exhaust chamber;
a second pressure gauge for measuring pressure within the back pressure chamber.
The utility model has the beneficial effects that:
the utility model provides a compressor, which comprises a machine body, a moving assembly, a back pressure valve, an adjustable throttle valve and a throttling element. The air suction cavity, the back pressure cavity and the exhaust cavity are arranged in the machine body, a first communicating channel, a second communicating channel and a third communicating channel are further arranged in the machine body, the first communicating channel and the second communicating channel are respectively communicated with the air suction cavity and the back pressure cavity, and the third communicating channel is communicated with the back pressure cavity and the exhaust cavity. The motion subassembly sets up between back pressure chamber and exhaust chamber, and the motion subassembly includes driving disk and quiet dish, and the driving disk setting is close to one side in the back pressure chamber at quiet dish. The back pressure valve is arranged on the first communication channel, the adjustable throttle valve is arranged on the second communication channel, and the throttling element is arranged on the third communication channel. The backpressure valve, the adjustable throttle valve and the throttling element can jointly adjust the pressure in the backpressure cavity. When the compressor is in low load operation, the pressure difference between the exhaust cavity and the air suction cavity is small, and the pressure difference between the back pressure cavity and the air suction cavity is smaller than the action pressure of the back pressure valve, the back pressure valve is in a closed state. In order to avoid the pressure in the backpressure intracavity to be close to or be equal to the pressure in the exhaust chamber, so that dynamic disc backpressure lifting force is far greater than the pneumatic power of dynamic disc axial, causes wearing and tearing too big between dynamic disc and the quiet dish, and this compressor still is provided with second intercommunication passageway and adjustable throttle valve, and opening of adjustable throttle valve can reduce the pressure in the backpressure intracavity, avoids wearing and tearing too big between dynamic disc and the quiet dish. When the compressor is in high-load operation, the pressure difference between the exhaust cavity and the air suction cavity is large, and the pressure difference between the back pressure cavity and the air suction cavity is larger than the action pressure of the back pressure valve, the back pressure valve is opened, and at the moment, the back pressure valve and the adjustable throttle valve jointly adjust the pressure in the back pressure cavity. Therefore, the compressor can prevent the movable disc from being separated from the static disc by jointly adjusting the pressure in the back pressure cavity through the back pressure valve, the adjustable throttle valve and the throttling element, ensure the normal work of the compressor, and simultaneously prevent the excessive abrasion between the movable disc and the static disc, thereby prolonging the service life of the compressor.
The utility model also provides a pre-adjusting system of the compressor, which comprises a high-pressure gas cylinder, a pressure regulating valve, a first pressure instrument and a second pressure instrument. The high-pressure gas cylinder is communicated with the exhaust cavity through a communicating pipeline so as to simulate a high-pressure environment in the exhaust cavity. The pressure regulating valve is arranged on the communicating pipeline to regulate the pressure in the exhaust cavity. The first pressure gauge is used for measuring the pressure in the exhaust cavity, and the second pressure gauge is used for measuring the pressure in the back pressure cavity. The preset system of the compressor is utilized to pre-adjust the compressor, so that the back pressure lifting force of the movable disc is slightly larger than the axial gas force of the movable disc, the movable disc is prevented from being separated from the static disc, the normal work of the compressor is guaranteed, meanwhile, the excessive abrasion between the movable disc and the static disc can be prevented, and the service life of the compressor is prolonged.
Drawings
Fig. 1 is a sectional view of a partial structure of a compressor provided in an embodiment of the present invention;
fig. 2 is a schematic view of a partial structure of a compressor provided in an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an adjustable throttle valve provided in accordance with an embodiment of the present invention;
FIG. 4 is an exploded view of an adjustable throttle valve provided in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a compressor preset system according to an embodiment of the present invention.
In the figure:
1. a body;
2. a motion assembly; 21. a movable plate; 22. a stationary disc;
3. a back pressure valve;
4. an adjustable throttle valve; 41. a valve housing; 411. a valve cavity; 412. a circular table top; 42. a valve core; 421. a tapered portion; 422. a side air guide groove; 423. an end face air guide groove; 43. an adjustment member; 431. a gas guiding middle hole; 432. an external threaded portion;
5. a throttling element;
6. a high pressure gas cylinder; 7. a pressure regulating valve; 8. a first pressure gauge; 9. a second pressure gauge;
100. an air suction cavity; 200. a back pressure chamber; 300. and an exhaust cavity.
Detailed Description
The technical scheme of the utility model is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
When the compressor works, high-pressure gas can be generated between the movable disc and the static disc, and the high-pressure gas can generate axial gas force of the movable disc, so that the movable disc and the static disc are separated from each other to form inner leakage. For the separation of avoiding driving disk and quiet dish, the driving disk back is provided with the backpressure chamber, and the backpressure intracavity has the atmospheric pressure of specific pressure, and the driving disk backpressure lifting force that this atmospheric pressure formed pushes the driving disk to quiet dish to be greater than the gaseous power of driving disk axial, can avoid breaking away from of driving disk and quiet dish. When the pressure in the back pressure cavity is too large, the back pressure lifting force of the movable disc is obviously higher than the gas force of the axial force of the movable disc, so that the abrasion between the movable disc and the static disc is aggravated, and the reliability of the compressor is reduced.
Accordingly, the present embodiment provides a compressor to solve the above-mentioned problems.
As shown in fig. 1 to 2, the compressor includes a body 1, a moving assembly 2, a back pressure valve 3, an adjustable throttle 4, and a throttling element 5. The suction cavity 100, the back pressure cavity 200 and the exhaust cavity 300 are arranged in the machine body 1, a first communicating channel, a second communicating channel and a third communicating channel are further arranged in the machine body 1, the first communicating channel and the second communicating channel are respectively communicated with the suction cavity 100 and the back pressure cavity 200, and the third communicating channel is communicated with the back pressure cavity 200 and the exhaust cavity 300. The moving assembly 2 is arranged between the back pressure chamber 200 and the exhaust chamber 300, the moving assembly 2 comprises a moving disc 21 and a static disc 22, and the moving disc 21 is arranged on one side of the static disc 22 close to the back pressure chamber 200. A back pressure valve 3 is provided on the first communication passage, an adjustable throttle valve 4 is provided on the second communication passage, and a throttling element 5 is provided on the third communication passage. The back pressure valve 3, the variable throttle valve 4 and the throttling element 5 are able to jointly regulate the pressure in the back pressure chamber 200.
When the compressor is in low load operation, the pressure difference between the exhaust cavity 300 and the suction cavity 100 is small, and the pressure difference between the back pressure cavity 200 and the suction cavity 100 is smaller than the operating pressure of the back pressure valve 3, the back pressure valve 3 is in a closed state. In order to avoid that the pressure in the back pressure cavity 200 is close to or equal to the pressure in the exhaust cavity 300, so that the lifting force of the back pressure of the movable disc is far greater than the axial gas force of the movable disc, and the abrasion between the movable disc 21 and the static disc 22 is too large, the compressor is further provided with a second communication channel and an adjustable throttle valve 4, the back pressure cavity 200 and the suction cavity 100 can be communicated by opening the adjustable throttle valve 4, the pressure in the back pressure cavity 200 is reduced, and the excessive abrasion between the movable disc 21 and the static disc 22 is avoided. When the compressor is in high load operation, the pressure difference between the exhaust cavity 300 and the suction cavity 100 is larger, and the pressure difference between the back pressure cavity 200 and the suction cavity 100 is larger than the operating pressure of the back pressure valve 3, the back pressure valve 3 is opened, and at this time, the back pressure valve 3 and the adjustable throttle valve 4 jointly adjust the pressure in the back pressure cavity 200. Therefore, the compressor can prevent the movable disc 21 from being separated from the static disc 22 by jointly adjusting the pressure in the back pressure cavity 200 through the back pressure valve 3, the adjustable throttle valve 4 and the throttling element 5, ensure the normal operation of the compressor, and simultaneously prevent the excessive abrasion between the movable disc 21 and the static disc 22, thereby prolonging the service life of the compressor.
As shown in fig. 3 to 4, in order to enable the adjustable throttle 4 to adjust the flow area of the second communication passage, the adjustable throttle 4 preferably includes a valve housing 41 and a valve spool 42. Specifically, the valve housing 41 is provided with a valve cavity 411 in a penetrating manner, two ends of the valve cavity 411 are respectively communicated with the back pressure cavity 200 and the suction cavity 100, and the valve core 42 is used for adjusting the minimum flow area of the airflow in the valve cavity 411.
Preferably, a circular table 412 is arranged in the valve cavity 411 in an inner ring mode, a conical portion 421 is arranged at the end portion of the valve core 42, the circular table 412 is matched with the conical portion 421 to adjust the minimum flow area, and a conical angle formed by extending the circular table 412 is larger than that of the conical portion 421. The central through hole at the end of the valve core 42 where the area of the conical part 421 can be smaller than the area of the round table 412 in the valve cavity 411 is arranged, and the extending depth of the conical part 421, namely the position of the valve core 42 in the valve cavity 411 is adjusted, so that the air flow circulation area at the central through hole can be adjusted.
In order to ensure the flow of the air flow in the adjustable throttle 4, it is preferable that a side surface air guide groove 422 is penetratingly provided on a side wall of the valve body 42 in an axial direction of the valve housing 41, an end surface air guide groove 423 is penetratingly provided at an end of the valve body 42 where the tapered portion 421 is not provided in a radial direction, and the side surface air guide groove 422 and the end surface air guide groove 423 are communicated. The air flow can flow in from the central through hole and enter the end face air guide groove 423 through the side face air guide groove 422.
To adjust the position of valve spool 42 within valve housing 41, adjustable throttle 4 preferably further includes an adjustment member 43, adjustment member 43 being used to adjust the relative position of valve spool 42 within valve housing 41. Preferably, the adjuster 43 is provided with an air guide center hole 431 penetrating along the axis of the valve housing 41. Preferably, the valve core 42 and the adjusting member 43 are both disposed in the valve chamber 411, and the adjusting member 43 is disposed at an end of the valve core 42 where the tapered portion 421 is not disposed. The air flows from the end surface air guide groove 423 into the air guide center hole 431 and flows to the outside of the adjustable throttle valve 4.
Preferably, the adjuster 43 is in threaded engagement with the inner wall of the valve housing 41. Rotating the adjuster 43 moves the position of the adjuster 43 within the valve chamber 411 to abut the valve element 42 and adjust the position of the valve element 42. Preferably, the spool 42 is closer to the back pressure chamber 200 than the adjuster 43 so that the air flow pushes the spool 42 against the adjuster 43.
Preferably, the adjustable throttle 4 is configured to enable a pressure difference a between the back pressure chamber 200 and the suction chamber 100 and a pressure difference B between the exhaust chamber 300 and the suction chamber 100 to satisfy a value of K × B, K being in a range of 0.2 to 0.7. Repeated experiments show that when the compressor meets the pressure difference proportional relation, the back pressure lifting force of the movable disc is slightly larger than the axial gas force of the movable disc, so that the movable disc 21 and the static disc 22 are prevented from being separated, the normal work of the compressor is ensured, the excessive abrasion between the movable disc 21 and the static disc 22 can be prevented, and the service life of the compressor is prolonged.
As shown in fig. 5, the present embodiment further provides a pre-regulation system of the compressor, which includes a high-pressure gas cylinder 6, a pressure regulating valve 7, a first pressure meter 8 and a second pressure meter 9. Wherein, the high-pressure gas cylinder 6 is communicated with the exhaust cavity 300 through a communication pipeline so as to simulate the high-pressure environment in the exhaust cavity 300. The pressure regulating valve 7 is provided on the communication pipe to regulate the pressure in the exhaust chamber 300. The first pressure gauge 8 is used to measure the pressure in the exhaust chamber 300 and the second pressure gauge 9 is used to measure the pressure in the back pressure chamber 200.
The pre-adjusting method of the pre-adjusting system comprises the following steps:
first, the suction chamber 100 is communicated with the atmosphere. The pressure regulating valve 7 is then adjusted so that the pressure PD in the exhaust chamber 300 becomes smaller than the operating pressure of the back pressure valve 3. That is, the differential pressure between the exhaust chamber 300 and the intake chamber 100 is smaller than the operating pressure of the back pressure valve 3, the differential pressure between the back pressure chamber 200 and the intake chamber 100 is smaller, and the back pressure valve 3 is in the closed state.
Then, the adjustable throttle 4 is adjusted so that the pressure PC inside the back pressure chamber 200 satisfies: PC is K × PD, and K ranges from 0.2 to 0.7. The real-time pressures of the back pressure chamber 200 and the exhaust chamber 300 can be known by means of the first pressure gauge 8 and the second pressure gauge 9, i.e. the adjustable throttle 4 is adjusted such that the ratio of the pressures of the back pressure chamber 200 and the exhaust chamber 300 is in the range of 0.2-0.7. At this moment, the lifting force slightly is greater than the gaseous power of driving disk axial to the driving disk backpressure support, can prevent that driving disk 21 and quiet dish 22 from breaking away from, when guaranteeing the compressor normal work, can also prevent wearing and tearing too big between driving disk 21 and the quiet dish 22, the life of extension compressor.
Certainly, the pressure in the exhaust cavity 300 can be adjusted to simulate the high-load operation state of the compressor, when the opening degree of the adjustable throttle valve 4 is unchanged under the verification of the opening state of the backpressure valve 3, whether the ratio of the pressures of the backpressure cavity 200 and the exhaust cavity 300 is unchanged or not is judged to obtain a proper opening degree, the movable disc 21 is prevented from being separated from the static disc 22, the normal work of the compressor is ensured, meanwhile, the excessive abrasion between the movable disc 21 and the static disc 22 is prevented, and the service life of the compressor is prolonged.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A compressor, comprising:
the air suction device comprises a machine body (1), wherein an air suction cavity (100), a back pressure cavity (200) and an air exhaust cavity (300) are arranged in the machine body (1), a first communicating channel, a second communicating channel and a third communicating channel are further arranged in the machine body (1), the first communicating channel and the second communicating channel can be communicated with the air suction cavity (100) and the back pressure cavity (200), and the third communicating channel is communicated with the back pressure cavity (200) and the air exhaust cavity (300);
the moving assembly (2) is arranged between the back pressure cavity (200) and the exhaust cavity (300), the moving assembly (2) comprises a moving disc (21) and a static disc (22), and the moving disc (21) is arranged on one side, close to the back pressure cavity (200), of the static disc (22);
the backpressure valve (3) is arranged on the first communication channel;
an adjustable throttle valve (4), the adjustable throttle valve (4) being provided on the second communication passage;
a throttle element (5), the throttle element (5) being provided on the third communication passage.
2. The compressor as claimed in claim 1, wherein the adjustable throttle valve (4) comprises a valve housing (41) and a valve core (42), the valve housing (41) is provided with a valve cavity (411) in a penetrating manner, two ends of the valve cavity (411) are respectively communicated with the back pressure cavity (200) and the suction cavity (100), and the valve core (42) is used for adjusting the minimum flow area of the airflow in the valve cavity (411).
3. The compressor as claimed in claim 2, wherein a circular table surface (412) is arranged in the valve cavity (411) in an inner ring manner, a tapered portion (421) is arranged at an end portion of the valve core (42), the circular table surface (412) is matched with the tapered portion (421) to adjust the minimum flow area, and a conical angle formed by extending the circular table surface (412) is larger than that of the tapered portion (421).
4. The compressor of claim 3, wherein a side air guide groove (422) is formed in a side wall of the valve body (42) in a direction of an axis of the valve housing (41) and penetrates therethrough, an end face air guide groove (423) is formed in a radial direction at an end of the valve body (42) where the tapered portion (421) is not formed, and the side air guide groove (422) and the end face air guide groove (423) communicate with each other.
5. Compressor according to claim 3, characterized in that the adjustable throttle valve (4) further comprises an adjusting member (43), the adjusting member (43) being used for adjusting the relative position of the valve spool (42) within the valve housing (41).
6. Compressor according to claim 5, characterized in that the adjusting piece (43) is provided with an air guide central hole (431) extending through it along the axis of the valve housing (41).
7. The compressor according to claim 5, wherein the valve core (42) and the adjusting member (43) are both disposed in the valve chamber (411), the adjusting member (43) being disposed at an end of the valve core (42) where the tapered portion (421) is not disposed.
8. Compressor according to claim 7, characterized in that the adjustment member (43) is in threaded engagement with the inner wall of the valve housing (41).
9. The compressor according to claim 1, wherein the adjustable throttle valve (4) is configured to enable a pressure difference a between the back pressure chamber (200) and the suction chamber (100) and a pressure difference B between the discharge chamber (300) and the suction chamber (100) to satisfy a-K x B, K being in a range of 0.2-0.7.
10. A system for pre-conditioning a compressor as claimed in any one of claims 1 to 9, characterized by comprising:
the high-pressure gas cylinder (6), the said high-pressure gas cylinder (6) communicates with said exhaust cavity (300) through the communicating line;
the pressure regulating valve (7), the said pressure regulating valve (7) is set up on the said communicating pipe;
a first pressure gauge (8), the first pressure gauge (8) for measuring a pressure within the exhaust chamber (300);
a second pressure gauge (9), the second pressure gauge (9) for measuring the pressure within the back pressure chamber (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220160183.3U CN216975230U (en) | 2022-01-20 | 2022-01-20 | Compressor and preset system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220160183.3U CN216975230U (en) | 2022-01-20 | 2022-01-20 | Compressor and preset system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216975230U true CN216975230U (en) | 2022-07-15 |
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ID=82351662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220160183.3U Active CN216975230U (en) | 2022-01-20 | 2022-01-20 | Compressor and preset system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216975230U (en) |
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2022
- 2022-01-20 CN CN202220160183.3U patent/CN216975230U/en active Active
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