CN209228581U - A kind of filtering buffer and vacuum evacuation device - Google Patents
A kind of filtering buffer and vacuum evacuation device Download PDFInfo
- Publication number
- CN209228581U CN209228581U CN201822181201.2U CN201822181201U CN209228581U CN 209228581 U CN209228581 U CN 209228581U CN 201822181201 U CN201822181201 U CN 201822181201U CN 209228581 U CN209228581 U CN 209228581U
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- connecting pipe
- shell
- condensation tube
- filter structure
- filtering
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- 239000000872 buffer Substances 0.000 title claims abstract description 63
- 238000001914 filtration Methods 0.000 title claims abstract description 34
- 238000009833 condensation Methods 0.000 claims description 63
- 230000005494 condensation Effects 0.000 claims description 63
- 239000007788 liquid Substances 0.000 claims description 29
- 238000007689 inspection Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 20
- 239000010687 lubricating oil Substances 0.000 abstract description 13
- 239000003921 oil Substances 0.000 description 19
- 230000003139 buffering effect Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model provides a kind of filtering buffer and vacuum evacuation device, belongs to transformer technology field.It includes shell, offers entrance and exit on shell；Connecting pipe；Buffer Unit for being filtered to gas, Buffer Unit are mounted in shell, and one end of connecting pipe is connected to entrance, and the other end is connected to the inside of Buffer Unit, and Buffer Unit offers port on one end of entrance.The vacuum evacuation device has above-mentioned filtering buffer, it can prevent there is impurity to be mixed into the lubricating oil of vacuum pump when being vacuumized with vacuum pump to transformer, vacuum pump lubricating oils are polluted, to extend the service life of vacuum pump, reduce the risk of damage vacuum pump.
Description
Technical field
The utility model relates to transformer technology field more particularly to a kind of filtering buffers and vacuum evacuation device.
Background technique
Before transformer puts into operation in power industry, in order to ensure its insulation performance.Before oiling, need using vacuum pump
It is vacuumized, moisture content in transformer, gas content is made to reach safety standard requirements.Existing transformer passes through exhaust tube
It is directly connected to vacuum pump, is extracted out moisture, gas in transformer by vacuum pump.
However method comes with some shortcomings: 1, vacuum pump in vacuum, the oil vapour of extraction, vapor,
Mechanical admixture etc. is directly entered vacuum pump, is mixed into vacuum pump lubricating oils, pollutes vacuum pump lubricating oils, needs frequently more to lubricate
Oil seriously affects service life of vacuum pump, or the risk of damage vacuum pump；2, vacuum pump generates in vacuum
Oil vapour by vacuum pump, be exhausted directly in atmosphere, pollute the environment.
Utility model content
One of the purpose of this utility model is to provide a kind of filtering buffer, this filtering buffer aims to solve the problem that existing skill
Art intermediate pump has been easy impurity in transformer vacuum and has been mixed into the problems in pump；
The another object of the utility model is to provide a kind of vacuum evacuation device, this vacuum evacuation device aims to solve the problem that existing skill
Art intermediate pump has been easy impurity in transformer vacuum and has been mixed into the problems in pump.
To achieve the above object, the technical solution of the utility model is:
A kind of filtering buffer, for being filtered to gas, comprising:
Shell offers entrance and exit on the shell respectively；
Connecting pipe；
Buffer Unit for being filtered to gas, the Buffer Unit are mounted in the shell, the connecting tube
The one end in road is connected to the entrance, and the other end is connected to the inside of the Buffer Unit, and the Buffer Unit enters described in
Port is offered on one end of mouth.
Non-limiting embodiment according to the present utility model is it is found that the entrance that the gas in transformer passes through housing sidewall
It enters in connecting pipe, is then entered in Buffer Unit by connecting pipe, buffered by the condensation of Buffer Unit, so that
Oil vapour, vapor in gas etc. by rapidly and efficiently be condensed into liquid, since the effect of gravity is collected into the bottom of shell
Portion, and then filter this out, so as to prevent to there is impurity to be mixed into very when vacuumizing transformer with vacuum pump
In the lubricating oil of sky pump, vacuum pump lubricating oils are polluted, to extend the service life of vacuum pump, reduce the wind of damage vacuum pump
Danger.
In addition, also there is following additional technical characteristic according to the filtering buffer of the utility model embodiment:
As a kind of technical solution of the utility model, the Buffer Unit include condensation tube, the first filter structure and
Second filter structure, the condensation tube are arranged in the shell；First filter structure is inscribed in the outer of the condensation tube
Wall, and be external on opposite two inner walls of the shell；The other end of the connecting pipe is connected in the condensation tube, institute
The outer wall that the second filter structure is inscribed in the connecting pipe is stated, and is external on opposite two inner walls of the condensation tube.
Non-limiting embodiment according to the present utility model is it is found that the entrance that the gas in transformer passes through housing sidewall
It enters in connecting pipe, is then first into the second filter structure by connecting pipe, by the second filter structure
Condensation buffering so that oil vapour, vapor in gas etc. be by the liquid that is condensed into rapidly and efficiently, gas then again by
The port of condensation tube bottom enters intracorporal first filter structure of shell, buffers by the condensation of the first filter structure, Neng Goujin
The oil vapour made in gas of one step, vapor etc. by rapidly and efficiently be condensed into liquid；Since these are cold for the effect of gravity
Liquid after solidifying is collected into the bottom of shell, and then filters this out, so as to prevent with vacuum pump to transformer
There is impurity to be mixed into the lubricating oil of vacuum pump when being vacuumized, vacuum pump lubricating oils is polluted, to extend vacuum pump
Service life reduces the risk of damage vacuum pump.
As a kind of technical solution of the utility model, the connecting pipe is connected to the axis of the part in the condensation tube
Line is identical as the axis of the condensation tube.
Non-limiting embodiment according to the present utility model is it is found that the connecting pipe setting parallel with condensation tube, energy
It is enough that the gas in it is enabled steadily quickly to enter progress impurity removal in the first filter structure and the second filter structure.
As a kind of technical solution of the utility model, the first filter screen is arranged at the other end of the connecting pipe
Plate, first screen pack are external on opposite two inner walls of the condensation tube, offer on first screen pack
Multiple spaced first filter hole.
Non-limiting embodiment according to the present utility model is it is found that the entrance that the gas in transformer passes through housing sidewall
It enters in connecting pipe, the filtering of the first screen pack is then first passed around by connecting pipe, pass through the first screen pack
Impurity therein is filtered (mainly mechanical admixture is screened out), is then entered back into the second filter structure, by
The condensations of two filter structures buffers, so that oil vapour, vapor in gas etc. be by the liquid that is condensed into rapidly and efficiently, then
Gas enters intracorporal first filter structure of shell again by the port of condensation tube bottom, by the condensation of the first filter structure
Buffering, can further make oil vapour, vapor in gas etc. by rapidly and efficiently be condensed into liquid.
As a kind of technical solution of the utility model, connector is offered at the other end of the connecting pipe, it is described
Connecting pipe is connected to by the connector with the condensation tube.
Non-limiting embodiment according to the present utility model is it is found that the entrance that the gas in transformer passes through housing sidewall
It enters in connecting pipe, is entered using connector and carry out buffering filtering in condensation tube, the gas that needs filter is risen
To the effect of connection transport.
As a kind of technical solution of the utility model, first filter structure and second filter structure are in spiral shell
Revolve plate structure, axis of the axis with the condensation tube of the axis of first filter structure, second filter structure
It is identical.
Non-limiting embodiment according to the present utility model is it is found that since the first filter structure and the second filter structure are equal
Helically plate structure, therefore, the gas in transformer are entered in connecting pipe by the entrance of housing sidewall, then again according to
It is secondary to enter in the second filter structure and the first filter structure, when passing through longer in the second filter structure and the first filter structure
Between stop therefore can carry out prolonged adequately condensation buffering to gas, make be evacuated body in the second filter structure
Oil in circulating gas steam, vapor are condensed into liquid and concentrated and is collected.The structure of the spiral plate has efficient spiral
The effect for condensing buffering, quickly can be condensed into liquid for oil vapour, the vapor in gas, it is ensured that gas steadily flows into.
As a kind of technical solution of the utility model, the connecting pipe is arranged with second close to the part of the entrance
Screen pack, second screen pack are external on opposite two inner walls of the shell, open on second screen pack
Equipped with multiple spaced second filter hole.
Non-limiting embodiment according to the present utility model is it is found that carried out impurity therein by the second screen pack
It filters (mainly mechanical admixture is screened out), can further be removed some impurity in gas, prevention gas is taken out
There is the suction of impurity in null process.
As a kind of technical solution of the utility model, liquid level detector is installed in the one side wall of the shell, it is another
Observation window of liquid level is installed on opposite side wall.
Non-limiting embodiment according to the present utility model is it is found that the liquid level detector is used to detect the height of condensed fluid
Degree；Meanwhile observation window of liquid level can be used to the case where observing condensed fluid.
As a kind of technical solution of the utility model, the axis of the condensation tube is identical as the axis of the shell.
Non-limiting embodiment according to the present utility model enables gas it is found that condensation tube and housing parallel are arranged
Enough smoothly enter carries out buffering condensation in condensation tube.
A kind of vacuum evacuation device, the vacuum evacuation device include above-described filtering buffer.
The beneficial effects of the utility model are:
The utility model provides a kind of filtering buffer by above-mentioned design, which has shell, shell
Entrance is offered on side wall, and outlet is offered on top；Connecting pipe；Buffer Unit for being filtered to gas, buffering
Component is mounted in shell, and one end of connecting pipe is connected to entrance, and the other end is connected to the inside of Buffer Unit, Buffer Unit
Port is offered on one end of entrance.Gas in transformer is entered in connecting pipe by the entrance of housing sidewall,
It is then entered in Buffer Unit, is buffered by the condensation of Buffer Unit, so that oil vapour, water in gas by connecting pipe
Steam etc. by rapidly and efficiently be condensed into liquid, since the effect of gravity is collected into the bottom of shell, and then filter this out,
So as to prevent to there is impurity to be mixed into the lubricating oil of vacuum pump when vacuumizing transformer with vacuum pump, pollute
Vacuum pump lubricating oils reduce the risk of damage vacuum pump to extend the service life of vacuum pump.
The utility model provides a kind of vacuum evacuation device by above-mentioned design, and the vacuum evacuation device is due to the mistake more than having
Buffer is filtered, therefore, has the characteristics that structure is simple and operation is convenient.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the structural schematic diagram of filtering buffer provided by the embodiment of the utility model；
Fig. 2 is the first angle structural schematic diagram of filtering buffer provided by the embodiment of the utility model；
Fig. 3 is the second angle structural schematic diagram of filtering buffer provided by the embodiment of the utility model；
Fig. 4 is the third angle structural schematic diagram of filtering buffer provided by the embodiment of the utility model；
Fig. 5 is the fourth angle structural schematic diagram of filtering buffer provided by the embodiment of the utility model.
Icon: 1- filters buffer；2- shell；3- entrance；The outlet 4-；5- connecting pipe；6- Buffer Unit；7- condensation
Cylinder；The first filter structure of 8-；The second filter structure of 9-；The first screen pack of 10-；The second screen pack of 11-；12- level sensing
Device；13- observation window of liquid level.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower"
For be based on the orientation or positional relationship shown in the drawings or the utility model product using when the orientation or position usually put
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, in the present invention unless specifically defined or limited otherwise, fisrt feature on second feature or
Under may include that the first and second features directly contact, may include the first and second features be not direct contact but logical yet
Cross the other characterisation contact between them.Moreover, fisrt feature is on second feature, top and above include fisrt feature
Right above second feature and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is
Under two features, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of fisrt feature
Level height is less than second feature.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment:
The present embodiment provides a kind of vacuum evacuation devices comprising filtering buffer 1, specific structure is as hereinbefore set forth.
Fig. 1 is please referred to, cooperation is referring to Fig. 2 to Fig. 5, and the filtering buffer 1 is for being filtered gas comprising shell
2, connecting pipe 5 and the Buffer Unit 6 for carrying out buffering filtering to gas；Wherein, position of the side wall of shell 2 close to bottom
The place of setting offers the entrance 3 entered for gas, which is attached with container to be vacuumized, opens up on top useful
In the outlet 4 of discharge gas, the outlet 4 is for being controlled to a vacuum pump, and Buffer Unit 6 is mounted in shell 2, connecting pipe 5
One end is connected to entrance 3, and the other end is connected to the inside of Buffer Unit 6, and Buffer Unit 6 offers on one end of entrance 3
Port.
Gas in transformer is entered in connecting pipe 5 by the entrance 3 of 2 side wall of shell, then passes through connecting pipe 5
It enters in Buffer Unit 6, is buffered by the condensation of Buffer Unit 6, so that oil vapour, vapor in gas etc. is by quick high
Effect is condensed into liquid, since the effect of gravity is collected into the bottom of shell 2, and then filters this out, so as to prevent
There is impurity to be mixed into the lubricating oil of vacuum pump when being vacuumized with vacuum pump to transformer, pollutes vacuum pump lubrication
Oil reduces the risk of damage vacuum pump to extend the service life of vacuum pump.
Referring to figure 2., Buffer Unit 6 includes condensation tube 7, the first filter structure 8 and the second filter structure 9；Wherein, cold
Solidifying cylinder 7 is arranged in shell 2；First filter structure 8 is inscribed in the outer wall of condensation tube 7, and is external in two relatively of shell 2
On wall；The other end of connecting pipe 5 is connected in condensation tube 7, and the second filter structure 9 is inscribed in the outer wall of connecting pipe 5, and outer
It is connected on opposite two inner walls of condensation tube 7.
It should be noted that the gas in transformer is entered in connecting pipe 5 by the entrance 3 of 2 side wall of shell, then
It is first into the second filter structure 9, is buffered by the condensation of the second filter structure 9, so that in gas by connecting pipe 5
Oil vapour, vapor etc. by the liquid that is condensed into rapidly and efficiently, gas then again by 7 bottom of condensation tube port into
Enter to the first filter structure 8 in shell 2, buffers, can further make in gas by the condensation of the first filter structure 8
Oil vapour, vapor etc. by rapidly and efficiently be condensed into liquid；Since the liquid after these condensations of the effect of gravity is received
Collect the bottom of shell 2, and then filter this out, so as to prevent when being vacuumized with vacuum pump to transformer
There is impurity to be mixed into the lubricating oil of vacuum pump, pollute vacuum pump lubricating oils, to extend the service life of vacuum pump, reduces damage
The risk of vacuum pump.
It should be noted that in the present embodiment, connecting pipe 5 is connected to axis and the condensation of the part in condensation tube 7
The axis of cylinder 7 is identical.The connecting pipe 5 setting parallel with condensation tube 7 enables to the gas in it can steadily quickly
Enter progress impurity removal in the first filter structure 8 and the second filter structure 9.And in other examples, the connecting tube
The shape and structure in road 5 is not limited only to shape and structure in the present embodiment etc..
Referring to figure 3., the first screen pack 10 is arranged at the other end of connecting pipe 5, the first screen pack 10 is external
In on opposite two inner walls of condensation tube 7, multiple spaced first filter hole are offered on the first screen pack 10.
Gas in transformer is entered in connecting pipe 5 by the entrance 3 of 2 side wall of shell, then passes through connecting pipe 5
Impurity therein is filtered (mainly machine by the first screen pack 10 by the filtering for first passing around the first screen pack 10
Tool impurity is screened out), it then enters back into the second filter structure 9, is buffered by the condensation of the second filter structure 9, make to bring about the desired sensation
Oil vapour, vapor in body etc. are by the liquid that is condensed into rapidly and efficiently, and gas then is again by the logical of 7 bottom of condensation tube
Mouth enters the first filter structure 8 in shell 2, buffers by the condensation of the first filter structure 8, can further make to bring about the desired sensation
Oil vapour, vapor in body etc. by rapidly and efficiently be condensed into liquid.
Meanwhile connector is offered at the other end of connecting pipe 5, connecting pipe 5 is connected by connector and condensation tube 7
It is logical.
It should be noted that the gas in transformer is entered in connecting pipe 5 by the entrance 3 of 2 side wall of shell, then pass through
It crosses connector and enters and carry out buffering filtering in condensation tube 7, play the role of connection transport to the gas that needs filter.
It should be noted that in the present embodiment, the first filter structure 8 and the second filter structure 9 helically plate knot
Structure, the axis of the first filter structure 8, the axis of the second filter structure 9 are identical as the axis of condensation tube 7.Implement in others
In example, the structure and shape of the first filter structure 8 and the second filter structure 9 are not limited only to the shape knot in the present embodiment
Structure.
Due to the first filter structure 8 and the second filter structure 9 helically plate structure, the gas in transformer
It is entered in connecting pipe 5, is then sequentially entered again to the second filter structure 9 and the first filtering by the entrance 3 of 2 side wall of shell
In structure 8, in the second filter structure 9 and the first filter structure 8 pass through the long period stop, therefore, can to gas into
The prolonged adequately condensation buffering of row, condenses be evacuated body in the second filter structure 9 by Oil in circulating gas steam, vapor
It is collected at liquid and concentration.The structure of the spiral plate has the effect of efficient spiral condensation buffering, can be quickly by gas
Oil vapour, vapor in body are condensed into liquid, it is ensured that gas steadily flows into.
Referring to figure 4., connecting pipe 5 is arranged with the second screen pack 11, the second screen pack 11 close to the part of entrance 3
It is external on opposite two inner walls of shell 2, multiple spaced second filter hole is offered on the second screen pack 11.
Impurity therein is filtered (mainly mechanical admixture is screened out) by the second screen pack 11, it can be into one
Some impurity in gas are removed by step, there is the suction of impurity during prevention evacuating air.
Referring to figure 5., liquid level detector 12 is installed in the one side wall of shell 2, liquid is installed on another opposite side wall
Position observation window 13.The liquid level detector 12 is used to detect the height of condensed fluid；Meanwhile observation window of liquid level 13 can be used to observe
The case where condensed fluid.
It should be noted that in the present embodiment, the axis of condensation tube 7 is identical as the axis of shell 2, condensation tube 7 and shell
Body 2 is arranged in parallel, and gas is smoothly entered and carries out buffering condensation in condensation tube 7.And in other examples,
The shape and structure of condensation tube 7 is not limited only to the shape and structure in the present embodiment.
Blowdown valve is installed in the bottom of condensation tube 7, by opening the blowdown valve for impurity, the condensate liquid inside shell 2
Body etc. is discharged outside shell 2.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of filtering buffer, for being filtered to gas characterized by comprising
Shell offers entrance and exit on the shell respectively；
Connecting pipe；
Buffer Unit for being filtered to gas, the Buffer Unit are mounted in the shell, the connecting pipe
One end is connected to the entrance, and the other end is connected to the inside of the Buffer Unit, and the Buffer Unit is close to the entrance
Port is offered on one end.
2. filtering buffer according to claim 1, it is characterised in that: the Buffer Unit includes condensation tube, the first mistake
Structure and the second filter structure are filtered, the condensation tube is arranged in the shell；First filter structure is inscribed in described
The outer wall of condensation tube, and be external on opposite two inner walls of the shell；The other end of the connecting pipe is connected to described
In condensation tube, second filter structure is inscribed in the outer wall of the connecting pipe, and is external in opposite the two of the condensation tube
On a inner wall.
3. filtering buffer according to claim 2, it is characterised in that: the connecting pipe is connected in the condensation tube
Part axis it is identical as the axis of the condensation tube.
4. filtering buffer according to claim 2, it is characterised in that: be arranged at the other end of the connecting pipe
One screen pack, first screen pack are external on opposite two inner walls of the condensation tube, first screen pack
On offer multiple spaced first filter hole.
5. filtering buffer according to claim 2, it is characterised in that: the company of offering at the other end of the connecting pipe
Interface, the connecting pipe are connected to by the connector with the condensation tube.
6. filtering buffer according to claim 2, it is characterised in that: first filter structure and second filtering
Structure helically plate structure, the axis of first filter structure, second filter structure axis with it is described cold
The axis of solidifying cylinder is identical.
7. filtering buffer according to claim 1, it is characterised in that: the connecting pipe is close to the part of the entrance
It is arranged with the second screen pack, second screen pack is external on opposite two inner walls of the shell, second mistake
Multiple spaced second filter hole are offered in sieve plate.
8. filtering buffer according to claim 1, it is characterised in that: be equipped with liquid level inspection in the one side wall of the shell
Device is surveyed, observation window of liquid level is installed on another opposite side wall.
9. filtering buffer according to claim 2, it is characterised in that: the axis of the axis of the condensation tube and the shell
Line is identical.
10. a kind of vacuum evacuation device, it is characterised in that: the vacuum evacuation device includes the described in any item mistakes of claim 1 to 9
Filter buffer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822181201.2U CN209228581U (en) | 2018-12-24 | 2018-12-24 | A kind of filtering buffer and vacuum evacuation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822181201.2U CN209228581U (en) | 2018-12-24 | 2018-12-24 | A kind of filtering buffer and vacuum evacuation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209228581U true CN209228581U (en) | 2019-08-09 |
Family
ID=67508936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822181201.2U Active CN209228581U (en) | 2018-12-24 | 2018-12-24 | A kind of filtering buffer and vacuum evacuation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN209228581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372727A (en) * | 2018-12-24 | 2019-02-22 | 重庆渝能滤油机制造有限公司 | A kind of filtering buffer and vacuum evacuation device |
-
2018
- 2018-12-24 CN CN201822181201.2U patent/CN209228581U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372727A (en) * | 2018-12-24 | 2019-02-22 | 重庆渝能滤油机制造有限公司 | A kind of filtering buffer and vacuum evacuation device |
| CN109372727B (en) * | 2018-12-24 | 2024-02-20 | 重庆渝能滤油机制造有限公司 | Filter buffer and vacuumizing device |
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