CN216362093U - Capsule type oil conservator oiling system and vacuumizing device - Google Patents
Capsule type oil conservator oiling system and vacuumizing device Download PDFInfo
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- CN216362093U CN216362093U CN202123173568.8U CN202123173568U CN216362093U CN 216362093 U CN216362093 U CN 216362093U CN 202123173568 U CN202123173568 U CN 202123173568U CN 216362093 U CN216362093 U CN 216362093U
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Abstract
The utility model discloses a vacuumizing device which comprises a four-way connecting pipe, a first connecting pipe and a second connecting pipe, wherein the four-way connecting pipe comprises a first branch pipe, a second branch pipe, a third branch pipe and a fourth branch pipe which are arranged in a crossed and communicated manner; one end of the first connecting pipe is communicated with the first branch pipe, and the other end of the first connecting pipe is communicated with a breathing pipe of the main oil storage cabinet; one end of the second connecting pipe is communicated with the third branch pipe, and the other end of the second connecting pipe is communicated with a breathing pipe of the switch oil conservator; the second is in charge of and is connected with the discharge valve intercommunication of main oil conservator exhaust pipe end portion, the fourth is in charge of and is connected with evacuation pipeline. The vacuum-pumping device has the advantages of simple structure, convenient use and low cost. The utility model also discloses an oil injection system of the capsule type oil conservator.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a capsule type oil conservator oiling system and a vacuumizing device.
Background
In the installation process of a large oil-immersed power transformer product, in order to prevent the oxidation of transformer oil and reduce the water content of the oil in the transformer, a vacuumizing oil injection method is adopted. For the transformer provided with the vacuum-resistant capsule type oil conservator, the oil conservator can be carried to vacuumize and fill oil together, and the method can reduce the content of gas and moisture in the transformer oil to the maximum extent.
The capsule in the capsule type oil conservator is made of rubber, and when the oil conservator is vacuumized, if the pressure difference between the inside and the outside of the capsule is too large, the capsule can be damaged. In order to ensure that the pressure inside and outside the capsule is consistent in the vacuumizing process, a communicating pipe is arranged at the top end of the oil storage cabinet in the prior art. One end of the communicating pipe is connected with the capsule breathing pipe and is communicated with the capsule air chamber, and the other end of the communicating pipe is connected with the cavity of the oil storage cabinet and is communicated with the oil chamber of the oil storage cabinet. The communicating pipe is provided with a valve, the valve is opened during vacuumizing, and the valve is closed after vacuumizing and oil injection is finished, so that the air chamber and the oil chamber are isolated. The capsule oil storage cabinet and the vacuum oil injection mode of the structure have the advantages of complex operation, and the requirement of workers for climbing to the top of the oil storage cabinet to open or close the valve. Once misoperation occurs, if the valve is in a closed state during vacuumizing, the pressure difference between the inside and the outside of the capsule is caused, and the capsule is damaged; or the valve is still in an open state after the oil injection is finished, so that the oil chamber and the air chamber of the oil storage cabinet are communicated for a long time, and the gas in the capsule enters the oil chamber of the oil storage cabinet to pollute the transformer oil, or the transformer oil flows into the breathing tube to pollute silica gel of the moisture absorber.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a vacuum pumping device, which has a simple structure, is convenient to use and has low cost.
The utility model also provides a capsule type oil conservator oiling system with the vacuumizing device.
In order to achieve the purpose, the utility model provides the following technical scheme:
an evacuation device comprising:
the four-way connecting pipe comprises a first branch pipe, a second branch pipe, a third branch pipe and a fourth branch pipe which are arranged in a cross communication mode;
one end of the first connecting pipe is communicated with the first branch pipe, and the other end of the first connecting pipe is communicated with a breathing pipe of the main oil storage cabinet;
one end of the second connecting pipe is communicated with the third branch pipe, and the other end of the second connecting pipe is communicated with a breathing pipe of the switch oil conservator;
the second branch pipe is communicated with an exhaust valve at the end part of an exhaust pipe of the main oil storage cabinet, and the fourth branch pipe is communicated with a vacuumizing pipeline;
the main oil storage cabinet breathing pipe is communicated with a capsule in the main oil storage cabinet, the switch oil storage cabinet breathing pipe is communicated with the switch oil storage cabinet, the main oil storage cabinet exhaust pipe is communicated with an inner cavity of the main oil storage cabinet, and the vacuumizing pipeline is communicated with an air suction opening of a vacuum oil filter.
Furthermore, the four-way connecting pipe is a cross-shaped connecting pipe.
Further, the first connecting pipe and the second connecting pipe are both PVC steel wire pipes.
Furthermore, the first branch pipe is connected with the first connecting pipe through a flange structure, the third branch pipe is connected with the second connecting pipe through a flange structure, the second branch pipe is connected with the exhaust valve through a flange structure, and the fourth branch pipe is connected with the vacuumizing pipeline through a flange structure.
The utility model also provides a capsule type oil storage cabinet oiling system which comprises a transformer, a main oil storage cabinet, a switch oil storage cabinet and a vacuum oil filter, and further comprises a vacuumizing device used for communicating the main oil storage cabinet, the switch oil storage cabinet and the vacuum oil filter, wherein the vacuumizing device is the vacuumizing device.
Further, a capsule is arranged in the main oil storage cabinet and is arranged at the top end in the cavity of the main oil storage cabinet.
Further, the extraction opening of vacuum oil filter passes through evacuation pipeline and fourth minute pipe intercommunication, the inner chamber of capsule is through main oil storage cabinet breathing pipe and first minute pipe intercommunication, the inner chamber of main oil storage cabinet is through main oil storage cabinet blast pipe and second minute pipe intercommunication, the inner chamber of switch oil storage cabinet is through switch oil storage cabinet breathing pipe and third minute pipe intercommunication.
Further, an oil tank of the transformer is communicated with an oil outlet of the vacuum oil filter through a first oil pipe, and a first valve is arranged on the first oil pipe;
the transformer is communicated with the inner cavity of the main oil storage cabinet through a second oil pipe, and a second valve is arranged on the second oil pipe.
Further, the bottom of main oil storage tank is provided with first notes oil drain pipe, first notes oil drain pipe's one end with the inner chamber intercommunication of main oil storage tank, the other end is provided with first notes fuel outlet valve.
Further, the bottom of switch oil conservator is provided with the second and annotates oil drain pipe, the second annotate oil drain pipe one end with the inner chamber intercommunication of switch oil conservator, the other end is provided with the second and annotates the fuel outlet valve.
According to the technical scheme, the vacuumizing device provided by the utility model is provided with the four-way connecting pipe, four communicating ports of the four-way connecting pipe are respectively communicated with the main oil storage cabinet, the vacuum oil filter, the capsule and the switch oil storage cabinet, so that simultaneous vacuum oil injection of the transformer body, the main oil storage cabinet and the switch oil storage cabinet is realized, the existing main oil storage cabinet breathing pipe on the oil storage cabinet is communicated with the capsule, the main oil storage cabinet exhaust pipe is communicated with the main oil storage cabinet, and the main oil storage cabinet breathing pipe and the main oil storage cabinet exhaust pipe are communicated through the four-way connecting pipe, so that the inner cavities of the main oil storage cabinet and the capsule are communicated, the same pressure inside and outside the capsule during vacuumizing is ensured, and the capsule is prevented from being damaged due to the pressure difference between the inside and the outside. Because main oil conservator respiratory tube and the oil conservator blast pipe are the pipe of bending and drawing the setting downwards, the height that the four-way connecting pipe is connected with the two is lower, need not to ascend a height again and just can carry out the evacuation, convenient and fast. The vacuumizing device provided by the utility model does not need to be specially provided with an oil storage cabinet communicating pipe and a valve, can realize communication by directly utilizing the existing main oil storage cabinet breathing pipe, the main oil storage cabinet exhaust pipe and the exhaust valve and adding the four-way connecting pipe 1, has a simple structure, and saves materials and cost.
The utility model also provides a capsule type oil filling system of an oil conservator, which has the vacuumizing device, so that the advantages are achieved, and the details are not repeated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vacuum pumping apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a capsule type oil conservator oiling system provided by the embodiment of the utility model.
Wherein:
1. the four-way connection pipe is 101, a first branch pipe, 102, a second branch pipe, 103, a third branch pipe, 104, a fourth branch pipe, 2, a first connection pipe, 3, a second connection pipe, 4, a main oil storage tank breathing pipe, 5, a main oil storage tank exhaust pipe, 6, a switch oil storage tank breathing pipe, 7, a vacuumizing pipeline, 8, an exhaust valve, 9, a transformer, 10, a second valve, 11, a main oil storage tank, 12, a capsule, 13, a first oil injection and discharge pipe, 14, a first oil injection and discharge valve, 15, a second oil injection and discharge pipe, 16, a second oil injection and discharge valve, 17, a switch oil storage tank connection pipe, 18, a vacuum oil filter, 19, an oil outlet, 20, a first valve, 21 and a switch oil storage tank.
Detailed Description
The embodiment of the utility model discloses a vacuumizing device which is simple in structure, convenient to use and low in cost.
The embodiment of the utility model also discloses a capsule type oil conservator oiling system with the vacuumizing device.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the vacuum pumping apparatus of the present invention includes a four-way connection pipe 1, a first connection pipe 2 and a second connection pipe 3. The four-way connecting pipe 1 comprises a first branch pipe 101, a second branch pipe 102, a third branch pipe 103 and a fourth branch pipe 104 which are arranged in a cross communication mode. One end of the first connecting pipe 2 is communicated with the first branch pipe 101, and the other end is communicated with the breathing pipe 4 of the main oil conservator. One end of the second connecting pipe 3 is communicated with the third branch pipe 103, and the other end is communicated with the breathing pipe 6 of the switch oil conservator. The second branch pipe 102 is communicated with an exhaust valve 8 at the end part of the exhaust pipe 5 of the main oil conservator, and the fourth branch pipe 104 is communicated with a vacuumizing pipeline 7.
The main oil storage cabinet breathing pipe 4 is communicated with an inner cavity of a capsule 12 in the main oil storage cabinet 11, the switch oil storage cabinet breathing pipe 6 is communicated with an inner cavity of the switch oil storage cabinet 21, the main oil storage cabinet exhaust pipe 5 is communicated with an inner cavity of the main oil storage cabinet 11, and the vacuumizing pipeline 7 is communicated with an air suction opening of the vacuum oil filter 18. And the exhaust valve 8 is used for controlling the on-off of the exhaust pipe 5 of the main oil conservator.
According to the vacuum-pumping device, the four-way connecting pipe 1 is arranged, four communicating ports of the four-way connecting pipe 1 are respectively communicated with the main oil storage cabinet 11, the vacuum oil filter 18, the capsule 12 and the switch oil storage cabinet 21, so that simultaneous vacuum oil injection of a transformer body, the main oil storage cabinet 11 and the switch oil storage cabinet 21 is realized, the existing main oil storage cabinet breathing pipe 4 on the oil storage cabinet is communicated with the capsule 12, the main oil storage cabinet exhaust pipe 5 is communicated with the main oil storage cabinet 11, and meanwhile, the main oil storage cabinet breathing pipe 4 and the main oil storage cabinet exhaust pipe 5 are communicated through the four-way connecting pipe 1, so that the main oil storage cabinet 11 is communicated with the inner cavity of the capsule 12, the same pressure inside and outside the capsule 12 during vacuum pumping is ensured, and the capsule 12 is prevented from being damaged due to the pressure difference between the inside and the outside. Because main oil conservator respiratory tube 4 and oil conservator blast pipe 5 are the pipe of bending and drawing the setting downwards, the height that four-way connecting pipe 1 and the two are connected is lower, need not to ascend a height again and just can carry out the evacuation, convenient and fast. The vacuumizing device provided by the utility model does not need to be specially provided with an oil storage cabinet communicating pipe and a valve, can realize communication by directly utilizing the existing main oil storage cabinet breathing pipe 4, the main oil storage cabinet exhaust pipe 5 and the exhaust valve 8 and adding the four-way connecting pipe 1, and has a simple structure.
In order to facilitate the installation and avoid the mutual interference between different branch pipes during the installation, the four-way connecting pipe 1 is a cross connecting pipe. Specifically, the first branch pipe 101 and the third branch pipe 103 are horizontally arranged in a straight line, the second branch pipe 102 and the fourth branch pipe 104 are vertically arranged in a straight line, and an included angle between the first branch pipe 101 and the second branch pipe 102 is 90 degrees.
In order to reduce the size requirement on the four-way connecting pipe 1 and facilitate the connection, the first connecting pipe 2 and the second connecting pipe 3 are both flexible pipes, and in an embodiment, the first connecting pipe 2 and the second connecting pipe 3 are both PVC steel wire pipes.
Put and made things convenient for the dismouting, first minute pipe 101 is connected with first connecting pipe 2 through flange structure, third minute pipe 103 is connected with second connecting pipe 3 through flange structure, second minute pipe 102 is connected with discharge valve 8 through flange structure, fourth minute pipe 104 is connected with evacuation pipeline 7 through flange structure, can understand, foretell flange structure all is connected through bolt and nut, in order to guarantee flange structure's connection leakproofness, flange structure department sets up the sealing washer.
The vacuum pumping device simplifies the vacuum oil injection operation, and has simple structure and convenient use.
The utility model also provides a capsule type oil storage cabinet oiling system which comprises a transformer 9, a main oil storage cabinet 11, a switch oil storage cabinet 21, a vacuum oil filter 18 and a vacuumizing device for communicating the main oil storage cabinet 11, the switch oil storage cabinet 21 and the vacuum oil filter 18, wherein the vacuumizing device is shown in figure 2.
Specifically, a capsule 12 is arranged in the main oil storage cabinet 11, and the capsule 12 is arranged at the top end in the cavity of the main oil storage cabinet 11. The air suction opening of the vacuum oil filter 18 is communicated with a fourth branch pipe 104 through a vacuum pumping pipeline 7, the inner cavity of the capsule 12 is communicated with a first branch pipe 101 through a main oil storage cabinet breathing pipe 4, the inner cavity of the main oil storage cabinet 11 is communicated with a second branch pipe 102 through a main oil storage cabinet exhaust pipe 5, and the inner cavity of the switch oil storage cabinet 21 is communicated with a third branch pipe 103 through a switch oil storage cabinet breathing pipe 6. The capsule 12 is generally a rubber capsule, volume compensation of insulating oil is realized through expansion of the capsule body, and the inner cavity of the capsule 12 is communicated with the atmosphere through the breathing tube 4 of the main oil storage cabinet.
Further, the oil tank of the transformer 9 is communicated with the oil outlet 19 of the vacuum oil filter 18 through a first oil pipe, and a first valve 20 is arranged on the first oil pipe. The transformer 9 is communicated with the inner cavity of the main oil storage tank 11 through a second oil pipe, and a second valve 10 is arranged on the second oil pipe. When the oil in the oil tank of the transformer 9 expands with heat, the oil flows from the oil tank to the main oil conservator 11, and when the oil in the oil tank of the transformer 9 contracts with cold, the oil flows from the main oil conservator 11 to the oil tank of the transformer 9. And a gas relay is also arranged on the second oil pipe and is arranged on one side of the second valve 10 close to the main oil conservator 11. The gas relay is an important safety protection device on the oil-immersed transformer, is arranged on the second oil pipe between a box cover of the transformer 9 and the main oil storage cabinet 11, and is connected with a signal or a tripping circuit under the action of gas or oil flow generated by internal faults of the transformer 9 so as to protect the transformer 9.
Wherein, the bottom of main oil storage tank 11 is provided with first notes fuel outlet pipe 13, and the one end of first notes fuel outlet pipe 13 communicates with the inner chamber of main oil storage tank 11, and the other end is provided with first notes fuel outlet valve 14. The first oil filling/discharging valve 14 is used for filling or discharging oil to the main oil conservator 11. The bottom of switch oil storage cabinet 21 is provided with second and annotates oil drain pipe 15, and the one end of second notes oil drain pipe 15 and the inner chamber intercommunication of switch oil storage cabinet 21, and the other end is provided with second and annotates fuel drain valve 16, and second is annotated fuel drain valve 16 and is used for annotating oil or oil drain to switch oil storage cabinet 21. The bottom end of the switch oil conservator 21 is also provided with a switch oil conservator connecting pipe 17, the switch oil conservator connecting pipe 17 is communicated with the switch oil conservator 21 with load, and is a standby oil injection and drainage pipe of the switch oil conservator 21 and used for injecting oil drainage for the switch oil conservator 21.
When the capsule type oil storage cabinet oiling system works, the second branch pipe 102 of the four-way connecting pipe 1 is connected with the exhaust valve 8, the other three pipe joints are respectively connected with the first connecting pipe 2, the second connecting pipe 3 and the vacuumizing pipeline 7, the other end of the first connecting pipe 2 is connected with the main oil storage cabinet breathing pipe 4, and the other end of the second connecting pipe 3 is connected with the switch oil storage cabinet breathing pipe 6. And (3) opening a first valve 20, enabling an oil outlet 19 of the vacuum oil filter 18 to be communicated with an oil tank of the transformer 9, opening a second valve 10 between the main oil conservator 11 and the transformer 9, and closing the first oil filling and discharging valve 14 and the second oil filling and discharging valve 16.
After the pipelines are connected according to the above, the main oil storage cabinet 11, the switch oil storage cabinet 21 and the capsule 12 are communicated with the air extraction joint of the vacuum oil filter 18 through the four-way connecting pipe 1, so that the vacuum oil filter 18 can uniformly vacuumize the main oil storage cabinet 11, the switch oil storage cabinet 21 and the capsule 12, and the pressure difference of the main oil storage cabinet 11, the switch oil storage cabinet 21 and the capsule 12 during vacuum oil injection is avoided. During the vacuum pumping, the first valve 20 is closed. During oil filling, the oil tank of the transformer 9 is communicated with the oil outlet 19 of the vacuum oil filter 18, and the second valve 10 is in an open state.
And starting the vacuum oil filter 18 for vacuumizing operation, vacuumizing at a uniform speed, reaching the specified vacuum degree, maintaining for a certain time, injecting oil into the oil tank of the transformer 9, stopping vacuumizing when the height of the oil level reaches above the gas relay, and closing the exhaust valve 8. And respectively opening the first oil injection and drainage valve 14 and the second oil injection and drainage valve 16, and injecting oil to the standard oil levels of the main oil storage cabinet 11 and the switch oil storage cabinet 21 by referring to oil temperature oil level curve nameplates, wherein the second valve 10 is in an open state in the process. The vacuum-pumping device is removed, that is, the first connecting pipe 2 is detached from the breathing pipe 4 of the main oil storage cabinet, the second connecting pipe 3 is detached from the breathing pipe 6 of the switch oil storage cabinet, the second branch pipe 102 is detached from the exhaust valve 8, and the fourth branch pipe 104 is detached from the vacuum-pumping pipeline 7.
In the description of the present solution, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present solution.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An evacuation device, comprising:
the four-way connecting pipe (1) comprises a first branch pipe (101), a second branch pipe (102), a third branch pipe (103) and a fourth branch pipe (104) which are arranged in a cross communication mode;
one end of the first connecting pipe (2) is communicated with the first branch pipe (101), and the other end of the first connecting pipe is communicated with a breathing pipe (4) of the main oil storage cabinet;
one end of the second connecting pipe (3) is communicated with the third branch pipe (103), and the other end of the second connecting pipe is communicated with a breathing pipe (6) of the switch oil conservator;
the second branch pipe (102) is communicated with an exhaust valve (8) at the end part of an exhaust pipe (5) of the main oil storage cabinet, and the fourth branch pipe (104) is communicated with a vacuumizing pipeline (7);
the main oil storage cabinet breathing pipe (4) is communicated with a capsule (12) in the main oil storage cabinet (11), the switch oil storage cabinet breathing pipe (6) is communicated with the switch oil storage cabinet (21), the main oil storage cabinet exhaust pipe (5) is communicated with the inner cavity of the main oil storage cabinet (11), and the vacuumizing pipeline (7) is communicated with an oil suction port of a vacuum oil filter (18).
2. The evacuation device according to claim 1, wherein the four-way connection tube (1) is a cross-shaped connection tube.
3. The evacuation device according to claim 1, wherein the first connection tube (2) and the second connection tube (3) are both PVC steel wire tubes.
4. The evacuation device according to claim 1, wherein the first branch pipe (101) is connected to the first connection pipe (2) by a flange structure, the third branch pipe (103) is connected to the second connection pipe (3) by a flange structure, the second branch pipe (102) is connected to the exhaust valve (8) by a flange structure, and the fourth branch pipe (104) is connected to the evacuation line (7) by a flange structure.
5. A capsule type oil conservator oiling system comprises a transformer (9), a main oil conservator (11), a switch oil conservator (21) and a vacuum oil filter (18), and is characterized by further comprising a vacuumizing device for communicating the main oil conservator (11), the switch oil conservator (21) and the vacuum oil filter (18), wherein the vacuumizing device is the vacuumizing device in any one of claims 1 to 4.
6. The capsule conservator oiling system according to claim 5, wherein a capsule (12) is arranged in the main conservator (11), the capsule (12) is arranged on the top end in the cavity of the main conservator (11).
7. The system for oiling an oil conservator in capsule type according to claim 6, wherein the air suction port of the vacuum oil filter (18) is connected to the fourth branch pipe (104) through the vacuum pumping pipeline (7), the inner cavity of the capsule (12) is connected to the first branch pipe (101) through the main conservator breather pipe (4), the inner cavity of the main conservator (11) is connected to the second branch pipe (102) through the main conservator exhaust pipe (5), and the inner cavity of the switch conservator (21) is connected to the third branch pipe (103) through the switch conservator breather pipe (6).
8. The capsule type conservator oiling system according to claim 5, wherein the oil tank of the transformer (9) is connected with the oil outlet (19) of the vacuum oil filter (18) through a first oil pipe, the first oil pipe is provided with a first valve (20);
the transformer (9) is communicated with the inner cavity of the main oil storage cabinet (11) through a second oil pipe, and a second valve (10) is arranged on the second oil pipe.
9. The system for oiling a capsule type oil conservator as claimed in claim 5, wherein the bottom end of the main oil conservator (11) is provided with a first oil injection and drainage pipe (13), one end of the first oil injection and drainage pipe (13) is communicated with the inner cavity of the main oil conservator (11), and the other end is provided with a first oil injection and drainage valve (14).
10. The system for oiling a capsule type oil conservator as claimed in claim 5, wherein the bottom end of the switch oil conservator (21) is provided with a second oil injection and drainage pipe (15), one end of the second oil injection and drainage pipe (15) is communicated with the inner cavity of the switch oil conservator (21), and the other end is provided with a second oil injection and drainage valve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123173568.8U CN216362093U (en) | 2021-12-16 | 2021-12-16 | Capsule type oil conservator oiling system and vacuumizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123173568.8U CN216362093U (en) | 2021-12-16 | 2021-12-16 | Capsule type oil conservator oiling system and vacuumizing device |
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| Publication Number | Publication Date |
|---|---|
| CN216362093U true CN216362093U (en) | 2022-04-22 |
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|---|---|---|---|
| CN202123173568.8U Active CN216362093U (en) | 2021-12-16 | 2021-12-16 | Capsule type oil conservator oiling system and vacuumizing device |
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| Country | Link |
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| CN (1) | CN216362093U (en) |
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2021
- 2021-12-16 CN CN202123173568.8U patent/CN216362093U/en active Active
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