CN107288882A - A kind of vacuum pump water circle device - Google Patents
A kind of vacuum pump water circle device Download PDFInfo
- Publication number
- CN107288882A CN107288882A CN201710488567.1A CN201710488567A CN107288882A CN 107288882 A CN107288882 A CN 107288882A CN 201710488567 A CN201710488567 A CN 201710488567A CN 107288882 A CN107288882 A CN 107288882A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- storage tank
- vavuum pump
- communicated
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/004—Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/005—Details concerning the admission or discharge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of vacuum pump water circle device, including base, vavuum pump is provided with the top of the base, air inlet pipe is communicated with the left of the vavuum pump, the surface of described air inlet pipe one end is communicated with communicating pipe, the inside of the communicating pipe is fixedly connected with filter screen, fixed block is fixedly connected with the right side of the base top, open up fluted at the top of the fixed block, the groove is internally provided with storage tank, it has been fixedly connected with the top of the storage tank both sides at the top of contiguous block, the contiguous block and has offered neck.The setting that the present invention passes through gas-liquid separator, the moisture that the gas interior that vavuum pump is discharged contains can be liquefied, pass through the setting of flow divider, the effect that the water flowed out inside storage tank passes through flow divider can be reached to the purpose recycled, solving water ring is unable to reach the purpose recycled simultaneously, so that the problem of reducing the operating efficiency of vavuum pump.
Description
Technical field
The present invention relates to vacuum pump technology field, specially a kind of vacuum pump water circle device.
Background technology
Water-ring vacuum pump abbreviation water ring pump, be widely used in machinery, petrochemical industry, manufacture, food, sugar industry and
Electronic applications, because in the course of the work, the compression process of gas is isothermal, so when compressing and aspirating explosion hazard gases not
Easily cause danger, water-ring vacuum pump can also extract dust-laden containing water gas in addition, such as Chinese patent discloses " band water circle device
Vavuum pump " (the patent No.：201420128617.7), the patent is by the way that vavuum pump is fixed in fixed seat, and its air inlet is set
There is filter, the gas outlet of the vavuum pump is connected by pipeline with liquid reserve tank, pipeline is provided with liquefying plant, liquefying plant
Delivery port is connected with liquid reserve tank, and liquid reserve tank is fixed in fixed seat by support, and it is provided with the exhaust outlet for being used for finally being vented, storage
The water inlet of the outlet conduit of liquid case and heat exchanger is connected, and the delivery port of heat exchanger is provided with flow divider, the flow divider respectively with branch
Pipe I and branch pipe II are connected, and branch pipe I is connected with the water inlet of liquefying plant, and branch pipe II is connected with the water inlet of vavuum pump, but should
The water ring that device is internally formed when in use is unable to reach the purpose recycled, so as to reduce the operating efficiency of vavuum pump.
The content of the invention
It is an object of the invention to provide a kind of vacuum pump water circle device, possess water ring and can reach and recycle
Purpose, so as to improve the advantage of the operating efficiency of vavuum pump, solve water ring and be unable to reach the purpose recycled, so as to drop
The problem of operating efficiency of roughing pump.
To achieve the above object, the present invention provides following technical scheme：A kind of vacuum pump water circle device, including bottom
It is provided with the top of seat, the base on the left of vavuum pump, the vavuum pump and is communicated with air inlet pipe, the table of described air inlet pipe one end
Face is communicated with communicating pipe, and the inside of the communicating pipe, which is fixedly connected with the right side of filter screen, the base top, to be fixedly connected with
Determine to open up fluted at the top of block, the fixed block, the groove is internally provided with storage tank, the top of the storage tank both sides
Portion, which has been fixedly connected with the top of contiguous block, the contiguous block, offers neck, is provided with lid at the top of the storage tank, institute
The both sides for stating base portion are fixedly connected with the kelly used cooperatively with neck, and kelly is located at the inside of neck, the storage
It is provided with the left of water tank on the right side of gas-liquid separator, the vavuum pump and is communicated with the first escape pipe, first escape pipe is remote
One end from vavuum pump is connected with the left side at the top of gas-liquid separator, and the top on the right side of the gas-liquid separator is communicated with first and gone out
Water pipe, the described one end of first outlet pipe away from gas-liquid separator is through the upper inside covered and extend to storage tank, the water storage
It is communicated with the second escape pipe on the right side of case, the right side of the storage tank and is communicated with the second water outlet positioned at the bottom of the second escape pipe
Pipe, the right-hand member of second outlet pipe, which is provided with the top of flow divider, the flow divider, is communicated with the first connecting tube, and described first
The top of connecting tube is connected with the right side at the top of gas-liquid separator, and the bottom of the flow divider is communicated with the second connecting tube, described
The bottom of second connecting tube is connected with the water inlet of vavuum pump.
It is preferred that, the bottom of the gas-liquid separator is fixedly connected with supporting plate, the right side of the supporting plate and storage tank
It is fixedly connected at the top of left side.
It is preferred that, it is fixedly connected with handle at the top of the upper lid, the surface of described handle one end is fixedly connected with anti-skidding
Pad.
It is preferred that, the bottom of the vavuum pump is fixedly connected with cushion block, the bottom of the cushion block and the left side of base top
It is fixedly connected.
It is preferred that, the inside of the neck is fixedly connected with the first clamp pad, and first clamp pad is in contact with kelly.
It is preferred that, the both sides of the groove inner chamber have been fixedly connected with the second clamp pad, second clamp pad and water storage
The bottom connection of case both sides is touched.
Compared with prior art, beneficial effects of the present invention are as follows：
1st, the present invention is by the setting of gas-liquid separator, the moisture progress that can contain the gas interior that vavuum pump is discharged
Liquefaction, by the setting of flow divider, can reach what is recycled by the effect that the water flowed out inside storage tank passes through flow divider
Purpose, while solving water ring is unable to reach the purpose recycled, so that the problem of reducing the operating efficiency of vavuum pump.
2nd, extraneous gas can be drawn into inside vavuum pump by the setting of air inlet pipe, pass through storage tank by the present invention
Setting, water can be stored, be convenient for using, by the setting of supporting plate, gas-liquid separator can be propped up
Support, it is ensured that the stability of work, by the setting of the second escape pipe, can be discharged the air inside storage tank.
3rd, the present invention can be supported, it is ensured that vavuum pump steady operation by the setting of cushion block to vavuum pump, pass through filter
The setting of net, the impurity contained by gas interior and molecule that can enter to external world is filtered, and is passed through first and is clamped
The setting of pad, can increase the stability that kelly is contacted with neck, prevent lid from rocking, pass through setting for the second clamp pad
Put, the stability that increase storage tank is placed, convenient that upper lid is taken by the setting of handle and slipmat, slipmat is prevented
Palm is slipped when only taking.
In summary：The present invention is gone out by gas-liquid separator, the first escape pipe, the first outlet pipe, the second escape pipe, second
Water pipe, flow divider, the first connecting tube, the cooperation of the second connecting tube and water inlet, solve water ring and are unable to reach what is recycled
Purpose, so that the problem of reducing the operating efficiency of vavuum pump.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is vavuum pump left view structural representation of the present invention；
Fig. 3 is A of the present invention partial structurtes enlarged diagram.
In figure：1 base, 2 vavuum pumps, 3 air inlet pipe, 4 communicating pipes, 5 filter screens, 6 fixed blocks, 7 grooves, 8 storage tanks, 9 connections
Block, 10 necks, lid on 11,12 kellies, 13 gas-liquid separators, 14 first escape pipes, 15 first outlet pipes, 16 second escape pipes,
17 second outlet pipes, 18 flow dividers, 19 first connecting tubes, 20 second connecting tubes, 21 water inlets, 22 supporting plates, 23 handles, 24 are prevented
Skidding, 25 cushion blocks, 26 first clamp pads, 27 second clamp pads.
Embodiment
(in the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ",
The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for
It is easy to the description present invention and simplifies description, rather than indicates or imply that signified equipment or element there must be specific side
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.)
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-3, a kind of vacuum pump water circle device, including base 1 are referred to, the top of base 1 is provided with vacuum
Pump 2, the bottom of vavuum pump 2 is fixedly connected with cushion block 25, and the bottom of cushion block 25 is fixedly connected with the left side at the top of base 1, passed through
The setting of cushion block 25, can be supported to vavuum pump 2, it is ensured that the steady operation of vavuum pump 2, the left side of vavuum pump 2 be communicated with into
Extraneous gas, by the setting of air inlet pipe 3, can be drawn into inside vavuum pump 2, the surface of the one end of air inlet pipe 3 connects by tracheae 3
Communicating pipe 4 is connected with, the inside of communicating pipe 4 is fixedly connected with filter screen 5, by the setting of filter screen 5, the gas that can enter to external world
Impurity and molecule contained by inside are filtered, and the right side at the top of base 1 is fixedly connected with fixed block 6, fixed block 6
Top opens up fluted 7, and the both sides of the inner chamber of groove 7 have been fixedly connected with the second clamp pad 27, the second clamp pad 27 and storage tank 8
The bottom connection of both sides is touched, by the setting of the second clamp pad 27, the stability that increase storage tank 8 is placed, and the inside of groove 7 is set
Storage tank 8 is equipped with, by the setting of storage tank 8, water can be stored, be convenient for using, the top of the both sides of storage tank 8
Contiguous block 9 is fixedly connected with, the top of contiguous block 9 offers neck 10, and the inside of neck 10 is fixedly connected with the first clamping
Pad 26, the first clamp pad 26 is in contact with kelly 12, by the setting of the first clamp pad 26, can increase kelly 12 and neck 10
The stability of contact, prevents lid 11 from rocking, and the top of storage tank 8 is provided with lid 11, and the top of upper lid 11, which is fixed, to be connected
Handle 23 is connected to, the surface of the one end of handle 23 is fixedly connected with slipmat 24, it is convenient by the setting of handle 23 and slipmat 24
Upper lid 11 is taken, palm is slipped when slipmat 24 prevents from taking, the both sides of the upper bottom of lid 11 have been fixedly connected with
The kelly 12 used cooperatively with neck 10, and kelly 12 is located at the inside of neck 10, the left side of storage tank 8 is provided with gas-liquid separation
Device 13, the bottom of gas-liquid separator 13 is fixedly connected with supporting plate 22, and the top on the right side and the left side of storage tank 8 of supporting plate 22 is consolidated
Fixed connection, by the setting of supporting plate 22, can be supported, it is ensured that the stability of work, vavuum pump 2 to gas-liquid separator 13
Right side be communicated with the first escape pipe 14, the left side of the one end of the first escape pipe 14 away from vavuum pump 2 and the top of gas-liquid separator 13
Side is connected, and the top on the right side of gas-liquid separator 13 is communicated with the first outlet pipe 15, and the first outlet pipe 15 is away from gas-liquid separator 13
One end is through upper lid 11 and extends to the inside of storage tank 8, the right side of storage tank 8 is communicated with the second escape pipe 16, by the
The setting of two escape pipes 16, can be discharged the air inside storage tank 8, the right side of storage tank 8 and positioned at the second outlet
The bottom of pipe 16 is communicated with the second outlet pipe 17, and the right-hand member of the second outlet pipe 17 is provided with flow divider 18, the top of flow divider 18
The first connecting tube 19 is communicated with, the top of the first connecting tube 19 is connected with the right side at the top of gas-liquid separator 13, flow divider 18
Bottom is communicated with the second connecting tube 20, and the bottom of the second connecting tube 20 is connected with the water inlet 21 of vavuum pump 2, passes through gas-liquid separation
The setting of device 13, the moisture that the gas interior that can discharge vavuum pump 2 contains is liquefied, by the setting of flow divider 18,
The effect that the water of the inside of storage tank 8 outflow passes through flow divider 18 can be reached to the purpose recycled, while solving water ring
The purpose recycled is unable to reach, so that the problem of reducing the operating efficiency of vavuum pump.
In use, when vavuum pump 2 works, extraneous high-temperature gas after filter screen 5 by entering back into inside vavuum pump 2, so
Discharged afterwards by the water ring in vavuum pump 2, can be vaporized because gas temperature is higher and carry away a certain amount of water in the inside of vavuum pump 2,
Then the part water is recycled by gas-liquid separator 13 and storage tank 8, and the moisture that gas itself is carried is through liquefaction
After also be stored in inside storage tank 8, returned to when from the water of the second outlet pipe 17 of storage tank 8 outflow by the part of flow divider 18
Inside gas-liquid separator 13, another part is back to the inner loop of vavuum pump 2 and used.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of vacuum pump water circle device, including base (1), it is characterised in that：It is provided with the top of the base (1)
Air inlet pipe (3) is communicated with the left of vavuum pump (2), the vavuum pump (2), the surface of described air inlet pipe (3) one end is communicated with
Siphunculus (4), the right side that the inside of the communicating pipe (4) is fixedly connected with the top of filter screen (5), the base (1) is fixedly connected with
Open up fluted (7) at the top of fixed block (6), the fixed block (6), the groove (7) is internally provided with storage tank (8),
It has been fixedly connected with the top of storage tank (8) both sides at the top of contiguous block (9), the contiguous block (9) and has offered neck
(10) lid (11), is provided with the top of the storage tank (8), the both sides of described upper lid (11) bottom have been fixedly connected with and blocked
The kelly (12) that groove (10) is used cooperatively, and kelly (12) is located at the inside of neck (10), the left side of the storage tank (8) is set
Have and the first escape pipe (14) is communicated with the right side of gas-liquid separator (13), the vavuum pump (2), first escape pipe (14) is remote
One end from vavuum pump (2) is connected with the left side at the top of gas-liquid separator (13), the top on the right side of the gas-liquid separator (13)
The first outlet pipe (15) is communicated with, (11) are covered simultaneously in the one end of first outlet pipe (15) away from gas-liquid separator (13) through upper
Extend to and the second escape pipe (16) is communicated with the right side of the inside of storage tank (8), the storage tank (8), the storage tank (8)
Right side and the second outlet pipe (17) is communicated with positioned at the bottom of the second escape pipe (16), the right-hand member of second outlet pipe (17) is set
It is equipped with the top of flow divider (18), the flow divider (18) and is communicated with the first connecting tube (19), first connecting tube (19)
Top is connected with the right side at the top of gas-liquid separator (13), and the bottom of the flow divider (18) is communicated with the second connecting tube (20),
The bottom of second connecting tube (20) is connected with the water inlet (21) of vavuum pump (2).
2. a kind of vacuum pump water circle device according to claim 1, it is characterised in that：The gas-liquid separator
(13) bottom is fixedly connected with supporting plate (22), and right side and the top on the left of storage tank (8) of the supporting plate (22) are fixed
Connection.
3. a kind of vacuum pump water circle device according to claim 1, it is characterised in that：The top of the upper lid (11)
Portion is fixedly connected with handle (23), and the surface of described handle (23) one end is fixedly connected with slipmat (24).
4. a kind of vacuum pump water circle device according to claim 1, it is characterised in that：The vavuum pump (2)
Bottom is fixedly connected with cushion block (25), and the bottom of the cushion block (25) is fixedly connected with the left side at the top of base (1).
5. a kind of vacuum pump water circle device according to claim 1, it is characterised in that：The neck (10) it is interior
Portion is fixedly connected with the first clamp pad (26), and first clamp pad (26) is in contact with kelly (12).
6. a kind of vacuum pump water circle device according to claim 1, it is characterised in that：Groove (7) inner chamber
Both sides be fixedly connected with the second clamp pad (27), second clamp pad (27) and the bottom connection of storage tank (8) both sides
Touch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710488567.1A CN107288882A (en) | 2017-06-23 | 2017-06-23 | A kind of vacuum pump water circle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710488567.1A CN107288882A (en) | 2017-06-23 | 2017-06-23 | A kind of vacuum pump water circle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107288882A true CN107288882A (en) | 2017-10-24 |
Family
ID=60098561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710488567.1A Withdrawn CN107288882A (en) | 2017-06-23 | 2017-06-23 | A kind of vacuum pump water circle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107288882A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253454A (en) * | 2020-10-22 | 2021-01-22 | 杭州非耀真空设备有限公司 | Water ring vacuum pump |
| CN116517831A (en) * | 2023-04-27 | 2023-08-01 | 华能国际电力股份有限公司上海石洞口第二电厂 | Variable-frequency vacuum pump system and gas-liquid separation device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3481529A (en) * | 1966-05-12 | 1969-12-02 | Siemens Ag | Method and apparatus for pumping with a liquid-ring in series with a jet ejector |
| GB1488439A (en) * | 1974-12-27 | 1977-10-12 | Gen Signal Corp | Low vacuum liquid ring pumping system |
| CN202301071U (en) * | 2011-10-28 | 2012-07-04 | 济南大学 | Water supply system of water ring vacuum pump |
| CN103939315A (en) * | 2014-03-21 | 2014-07-23 | 南通龙鹰真空泵业有限公司 | Vacuum pump with water circulating device |
| CN204961407U (en) * | 2015-07-20 | 2016-01-13 | 山东同成医药科技有限公司 | Vacuum pump circulating water cooling cyclic utilization device |
| CN205480139U (en) * | 2016-03-04 | 2016-08-17 | 雅孚顿（天津）石化产品有限公司 | Industry lubricating -oil tank with portable function |
| CN207145233U (en) * | 2017-06-23 | 2018-03-27 | 浙江凯尼真空设备有限公司 | A kind of vacuum pump water circle device |
-
2017
- 2017-06-23 CN CN201710488567.1A patent/CN107288882A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3481529A (en) * | 1966-05-12 | 1969-12-02 | Siemens Ag | Method and apparatus for pumping with a liquid-ring in series with a jet ejector |
| GB1488439A (en) * | 1974-12-27 | 1977-10-12 | Gen Signal Corp | Low vacuum liquid ring pumping system |
| CN202301071U (en) * | 2011-10-28 | 2012-07-04 | 济南大学 | Water supply system of water ring vacuum pump |
| CN103939315A (en) * | 2014-03-21 | 2014-07-23 | 南通龙鹰真空泵业有限公司 | Vacuum pump with water circulating device |
| CN204961407U (en) * | 2015-07-20 | 2016-01-13 | 山东同成医药科技有限公司 | Vacuum pump circulating water cooling cyclic utilization device |
| CN205480139U (en) * | 2016-03-04 | 2016-08-17 | 雅孚顿（天津）石化产品有限公司 | Industry lubricating -oil tank with portable function |
| CN207145233U (en) * | 2017-06-23 | 2018-03-27 | 浙江凯尼真空设备有限公司 | A kind of vacuum pump water circle device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253454A (en) * | 2020-10-22 | 2021-01-22 | 杭州非耀真空设备有限公司 | Water ring vacuum pump |
| CN116517831A (en) * | 2023-04-27 | 2023-08-01 | 华能国际电力股份有限公司上海石洞口第二电厂 | Variable-frequency vacuum pump system and gas-liquid separation device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171024 |