CN114607607A - Inner-cooling water ring vacuum pump with adjustable cooling water joint - Google Patents
Inner-cooling water ring vacuum pump with adjustable cooling water joint Download PDFInfo
- Publication number
- CN114607607A CN114607607A CN202210420158.9A CN202210420158A CN114607607A CN 114607607 A CN114607607 A CN 114607607A CN 202210420158 A CN202210420158 A CN 202210420158A CN 114607607 A CN114607607 A CN 114607607A
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- water
- vacuum pump
- water inlet
- water outlet
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- 239000000498 cooling water Substances 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 138
- 238000001816 cooling Methods 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 244000309464 bull Species 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 241000834287 Cookeolus japonicus Species 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- 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
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- 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
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
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- 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
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses an inner cooling water ring vacuum pump with an adjustable cooling water joint, which belongs to the technical field of vacuum pumps and comprises: the vacuum pump comprises a support assembly and a vacuum pump main body arranged on the support assembly; a cooling channel is arranged in the vacuum pump main body, and a water inlet and a water outlet of the cooling channel extend to the bottom of the vacuum pump main body; the top of the supporting component is provided with a water inlet groove and a water outlet groove, the bottoms of the water inlet groove and the water outlet groove are respectively provided with a water inlet hole communicated with the water inlet pipe and a water outlet hole communicated with the water outlet pipe, and the water inlet groove and the water outlet groove are respectively communicated with the water inlet and the water outlet of the cooling channel; the top of the supporting component is respectively provided with a first sealing ring and a second sealing ring around the water inlet groove and the water outlet groove, and the first sealing ring and the second sealing ring are used for sealing the space between the supporting component and the vacuum pump main body. The invention can effectively cool the liquid in the pump through heat exchange, has better cooling effect, saves water resources, and simultaneously, the position of the water ring vacuum pump is simple and convenient to adjust.
Description
Technical Field
The invention relates to the technical field of vacuum pumps, in particular to an inner-cooling water ring vacuum pump with an adjustable cooling water joint.
Background
The description of the background of the invention pertaining to the related art to which this invention pertains is given for the purpose of illustration and understanding only of the summary of the invention and is not to be construed as an admission that the applicant is explicitly or implicitly admitted to be prior art to the date of filing this application as first filed with this invention.
The water ring vacuum pump is internally provided with an eccentric rotor with fixed blades, liquid is thrown to the inner wall of a shell, the liquid forms a liquid ring concentric with the shell, and the liquid ring and the rotor blades form a rotary variable volume vacuum pump with variable volume. When the gas temperature that the water ring vacuum pump extracted is higher, the liquid temperature in the casing can rise gradually, can only cool down through external running water after the temperature risees, and not only the cooling effect is poor, wastes a large amount of water resources moreover.
Disclosure of Invention
The invention aims to provide an inner-cooling water ring vacuum pump with an adjustable cooling water joint, which aims to solve the problem that the conventional water ring vacuum pump is inconvenient to cool.
The technical scheme for solving the technical problems is as follows:
an adjustable cooling water joint inner cooling water ring vacuum pump, comprising: the vacuum pump comprises a support assembly and a vacuum pump main body arranged on the support assembly;
a cooling channel is arranged in the vacuum pump main body, and a water inlet and a water outlet of the cooling channel extend to the bottom of the vacuum pump main body;
the top of the supporting component is provided with a water inlet groove and a water outlet groove, the bottoms of the water inlet groove and the water outlet groove are respectively provided with a water inlet hole communicated with the water inlet pipe and a water outlet hole communicated with the water outlet pipe, and the water inlet groove and the water outlet groove are respectively communicated with the water inlet and the water outlet of the cooling channel;
the top of the supporting component is respectively provided with a first sealing ring and a second sealing ring around the water inlet groove and the water outlet groove, and the first sealing ring and the second sealing ring are used for sealing the space between the supporting component and the vacuum pump main body.
According to the invention, the cooling channel is arranged in the vacuum pump, and circulating cooling water is introduced into the cooling channel, so that the liquid in the pump can be effectively cooled through heat exchange, and compared with an external cooling mode, the cooling effect is better, and water resources are saved.
The vacuum pump needs to adjust the position and the angle when being installed, and the cooling channel needs to be communicated with the water inlet pipe and the water outlet pipe, and the adjustment of the vacuum pump is inconvenient by adopting a conventional joint connection mode.
Furthermore, a backflow channel located on the inner side of the cooling channel is further arranged inside the vacuum pump main body, and a water inlet and a water outlet of the backflow channel are located on the inner wall of the vacuum pump main body.
The backflow channel is used for guiding part of liquid in the pump, so that the contact area between the heat exchange liquid and the shell is increased, and the exchange efficiency is effectively improved.
Further, the vacuum pump main body comprises a shell, a base arranged at the bottom of the shell and a rotor eccentrically arranged in the shell;
the base sets up on supporting component, and cooling channel's water inlet and delivery port are located the bottom of base, and cooling channel extends to and surrounds the rotor in the casing, extends to the bottom of base at last.
The cooling channel extends in the shell and surrounds the rotor, so that the heat exchange area can be increased, and the heat exchange efficiency is improved.
Furthermore, the rotation center of the rotor is eccentrically arranged upwards relative to the center of the inner cavity of the shell, and the water inlet and the water outlet of the backflow channel are positioned at the upper part of the inner side wall of the shell.
Furthermore, the water inlet and the water outlet of the backflow channel are obliquely arranged, so that liquid flowing in the shell can conveniently enter or flow out of the water inlet and the water outlet, and the liquid can conveniently enter or flow out of the backflow channel.
Furthermore, the shell is provided with an air inlet hole and an air outlet hole, the air inlet hole and the air outlet hole are respectively close to the water inlet and the water outlet of the backflow channel, the height of the hole opening of the air inlet hole in the inner wall of the shell is lower than the height of the water inlet of the backflow channel, and the height of the hole opening of the air outlet hole in the inner wall of the shell is lower than the height of the water outlet of the backflow channel, so that the influence on the circulation of air is avoided.
Furthermore, the supporting assembly comprises a supporting frame, a turntable rotationally arranged on the supporting frame and a speed reducing motor arranged on the supporting frame; the speed reducing motor is connected with the turntable and drives the turntable to rotate on the support frame; the base is connected with the supporting frame and the turntable through bolts respectively.
The vacuum pump main body is placed on the turntable, and when the vacuum pump main body is not connected with the supporting frame, the installation direction of the vacuum pump main body can be adjusted through the speed reducing motor, so that the direction adjustment is simple and accurate.
Further, the top of the supporting frame is flush with the top of the rotating disc.
Furthermore, a plurality of bull-eye bearings are arranged at the top of the turntable, and the tops of the bull-eye bearings are higher than the top of the turntable and are in contact with the base; the first sealing ring and the second sealing ring are respectively contacted with the base.
According to the invention, the bull eye bearing is arranged on the turntable, and when the vacuum pump main body is placed on the turntable, the position of the vacuum pump main body can be conveniently adjusted through the bull eye bearing.
Furthermore, the water inlet hole and the water outlet hole respectively penetrate through the rotary disc.
The invention has the following beneficial effects:
(1) according to the invention, the cooling channel is arranged in the water ring vacuum pump, and circulating cooling water is introduced into the cooling channel, so that the liquid in the pump can be effectively cooled through heat exchange, and compared with an external cooling mode, the cooling effect is better, and water resources are saved.
(2) When the position of the water ring vacuum pump is adjusted within a certain range, the cooling channel can be communicated with the water inlet groove and the water outlet groove, and the communication and connection mode is convenient and quick.
(3) The backflow channel is used for guiding part of liquid in the pump, so that the contact area between the heat exchange liquid and the shell is increased, and the exchange efficiency is effectively improved.
(4) The vacuum pump main body can be conveniently adjusted in position during and after installation, and is simple in adjustment process and accurate in adjustment result.
Drawings
FIG. 1 is a schematic diagram of an adjustable internal cooling water ring vacuum pump with cooling water joints according to the present invention;
FIG. 2 is a schematic structural view of the support assembly of the present invention;
FIG. 3 is a schematic cross-sectional view of the turntable of the present invention;
FIG. 4 is a schematic top view of the turntable of the present invention;
fig. 5 is a schematic structural view of a vacuum pump main body according to the present invention.
In the figure: 10-a support assembly; 11-a water inlet tank; 12-a water outlet groove; 13-water inlet hole; 14-water outlet; 15-a first sealing ring; 16-a second sealing ring; 17-bulls eye bearing; 20-a vacuum pump body; 21-a cooling channel; 22-a return channel; 23-a housing; 24-a base; 25-a rotor; 26-an air inlet hole; 27-air outlet holes; 30-water inlet pipe; 40-water outlet pipe; 101-a support frame; 102-a turntable; 103-reduction motor.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, the present invention provides an adjustable cooling water joint for an internal cooling water ring vacuum pump, including a support assembly 10 and a vacuum pump main body 20 mounted on the support assembly 10, wherein the support assembly 10 is used for supporting and adjusting the vacuum pump main body 20, the vacuum pump main body 20 is provided with a cooling channel 21, which can effectively cool the liquid in the pump by heat exchange, compared with an external cooling method, the cooling effect is better, and water resources are saved, and meanwhile, the connection mode between the support assembly 10 and the vacuum pump main body 20 facilitates the communication of pipelines, thereby facilitating the installation of the vacuum pump main body 20.
Referring to fig. 2, the supporting assembly 10 includes a supporting frame 101, a turntable 102 and a reduction motor 103. The top of support frame 101 is equipped with the arc wall, carousel 102 is circular and places in the arc wall, and simultaneously, the top surface of carousel 102 flushes with the top surface of support frame 101, gear motor 103 is vertical installs in the bottom of support frame 101, gear motor 103's motor shaft has the pivot through the coupling joint, the pivot is connected with carousel 102's centre of rotation, rotation through gear motor 103, drive carousel 102 rotates in the arc wall, thereby drive the vacuum pump main part 20 of installing on carousel 102 and rotate, carry out position control to vacuum pump main part 20.
Referring to fig. 3 and 4, the top of the rotating disc 102 is symmetrically provided with a water inlet tank 11 and a water outlet tank 12 along a central axis, the bottoms of the water inlet tank 11 and the water outlet tank 12 are respectively provided with a water inlet hole 13 and a water outlet hole 14, and the water inlet hole 13 and the water outlet hole 14 extend to the bottom of the rotating disc 102 and are respectively communicated with the water inlet pipe 30 and the water outlet pipe 40. The external cooling water enters the vacuum pump main body 20 from the water inlet pipe 30, the water inlet hole 13 and the water inlet groove 11, and flows out from the water outlet groove 12, the water outlet hole 14 and the water outlet pipe 40 after exchanging heat with the vacuum pump main body 20, so that the circulation of water flow is realized, the cooling effect on the vacuum pump main body 20 is good, and the water resource is saved.
In order to seal between the turntable 102 and the vacuum pump body 20, the top of the turntable 102 is provided with a first sealing ring 16 and a second sealing ring 17 surrounding the water inlet groove 11 and the water outlet groove 12, and the first sealing ring 16 and the second sealing ring 17 protrude from the top surface of the turntable 102.
The top of carousel 102 still is equipped with a plurality of bull's eye bearings 17, and the top height of bull's eye bearing 17 is higher than the top surface height of carousel 102, and vacuum pump main part 20 contacts with bull's eye bearing 17 when placing on carousel 102, and first sealing washer 16 and second sealing washer 17 are in compression state this moment, and when installing vacuum pump main part 20, can easily remove vacuum pump main part 20 to realize the regulation of vacuum pump main part 20 mounted position.
Referring to fig. 5, the vacuum pump main body 20 includes a housing 23, a base 24 disposed at the bottom of the housing 23, and a rotor 25 disposed inside the housing 23. The base 24 has a plate shape at both sides of the bottom thereof for connecting with the supporting frame 101 and the turntable 102 by bolts. When the vacuum pump main body 20 is installed, the vacuum pump main body 20 is placed on the turntable 102, the position of the vacuum pump main body 20 is adjusted according to the installation position, and after the position adjustment is completed, the base 24 is connected with the support frame 101 and the turntable 102 through bolts. In other embodiments of the present invention, a plurality of support legs may be further provided according to the length of the vacuum pump main body 20, so as to ensure that the support legs can be connected to the support frame 101 and the turntable 102, and at the same time, the support legs can be slid on the bull's eye bearing 17.
After vacuum pump main part 20 is installed and is accomplished, if need carry out position control to vacuum pump main part 20, only need pull down the bolt of being connected with support frame 101, can realize vacuum pump main part 20 and carousel 102's rotation through gear motor 103, avoid taking place relative rotation under the effect of bull's eye bearing 17 between vacuum pump main part 20 and carousel 102 to lead to dropping of vacuum pump main part 20.
The interior of the vacuum pump main body 20 is provided with a cooling channel 21, a water inlet and a water outlet of the cooling channel 21 are both located on the ground of the base 24 and are respectively opposite to the water inlet groove 11 and the water outlet groove 12, and the cooling channel 21 penetrates through the base 24 and then enters the shell 23, and extends around the rotor 25 and then enters the base 24.
The interior of the housing 23 is provided with a return channel 22, the water inlet and outlet of the return channel 22 being located on the inner wall of the housing 23, the return channel 22 being located inside the cooling channel 21 and surrounding the rotor 25. The liquid inside the housing 23 forms a water ring and then enters the return passage 22, and the outside is cooled and enters the cooling passage 21, so that the liquid inside the housing 23 is cooled through heat exchange.
The centre of rotation of rotor 25 is upwards eccentric settings for the center of casing 23 inner chamber, and at this moment, the water inlet and the delivery port of backward flow passageway 22 are located the upper portion of the inside wall of casing 23, and simultaneously, the water inlet and the delivery port of backward flow passageway 22 all incline the setting, and the liquid that flows in the casing 23 of being convenient for gets into or flows out water inlet and delivery port.
The shell 23 is provided with an air inlet hole 26 and an air outlet hole 27, the air inlet hole 26 and the air outlet hole 27 are respectively close to the water inlet and the water outlet of the backflow channel 22, the height of the opening of the air inlet hole 26 on the inner wall of the shell 23 is lower than the height of the water inlet of the backflow channel 22, and the height of the opening of the air outlet hole 27 on the inner wall of the shell 23 is lower than the height of the water outlet of the backflow channel 22, so that the influence on the circulation of air is avoided.
Other structures of the vacuum pump main body 20, such as the specific structure and connection mode of the rotor 25, the connection mode of the air inlet pipe and the air outlet pipe, and the working principle of the vacuum pump, belong to the prior art, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides an interior cold water ring vacuum pump with adjustable cooling water joint which characterized in that includes: a support assembly (10) and a vacuum pump main body (20) mounted on the support assembly (10);
a cooling channel (21) is arranged inside the vacuum pump main body (20), and a water inlet and a water outlet of the cooling channel (21) extend to the bottom of the vacuum pump main body (20);
the top of the supporting component (10) is provided with a water inlet groove (11) and a water outlet groove (12), the bottoms of the water inlet groove (11) and the water outlet groove (12) are respectively provided with a water inlet hole (13) communicated with a water inlet pipe (30) and a water outlet hole (14) communicated with a water outlet pipe (40), and the water inlet groove (11) and the water outlet groove (12) are respectively communicated with a water inlet and a water outlet of the cooling channel (21);
the top of the supporting component (10) is provided with a first sealing ring (15) and a second sealing ring (16) around the water inlet groove (11) and the water outlet groove (12) respectively, and the first sealing ring and the second sealing ring are used for sealing between the supporting component (10) and the vacuum pump main body (20).
2. The inner cold water ring vacuum pump with adjustable cooling water connection according to claim 1, characterized in that the vacuum pump main body (20) is further provided with a return channel (22) inside the cooling channel (21), and the water inlet and outlet of the return channel (22) are located on the inner wall of the vacuum pump main body (20).
3. The adjustable cooling water joint inner cooling water ring vacuum pump according to claim 2, characterized in that the vacuum pump main body (20) comprises a housing (23), a base (24) arranged at the bottom of the housing (23), and a rotor (25) eccentrically arranged inside the housing (23);
the base (24) is arranged on the supporting component (10), the water inlet and the water outlet of the cooling channel (21) are positioned at the bottom of the base (24), and the cooling channel (21) extends into the shell (23) and surrounds the rotor (25) and finally extends to the bottom of the base (24).
4. The inner cold water ring vacuum pump with adjustable cooling water joint as claimed in claim 3, characterized in that the center of rotation of said rotor (25) is eccentrically disposed upward with respect to the center of the inner cavity of said housing (23), and the water inlet and outlet of said return channel (22) are located at the upper portion of the inner side wall of said housing (23).
5. The adjustable cooling water joint inner cooling water ring vacuum pump according to claim 4, characterized in that the water inlet and the water outlet of the return channel (22) are obliquely arranged, so that the liquid flowing in the shell (23) can enter or flow out of the water inlet and the water outlet.
6. The adjustable cooling water joint inner cooling water ring vacuum pump according to claim 4, characterized in that the housing (23) is provided with an air inlet hole (26) and an air outlet hole (27), the air inlet hole (26) and the air outlet hole (27) are respectively close to the water inlet and the water outlet of the backflow channel (22), the air inlet hole (26) is positioned at the opening of the inner wall of the housing (23) and has a height lower than the height of the water inlet of the backflow channel (22), and the air outlet hole (27) is positioned at the opening of the inner wall of the housing (23) and has a height lower than the height of the water outlet of the backflow channel (22).
7. The inner cold water ring vacuum pump with the adjustable cooling water joint as claimed in any one of claims 3 to 6, characterized in that the support assembly (10) comprises a support frame (101), a turntable (102) rotatably arranged on the support frame (101), and a speed reduction motor (103) arranged on the support frame (101); the speed reducing motor (103) is connected with the turntable (102) and drives the turntable (102) to rotate on the supporting frame (101); the base (24) is connected with the supporting frame (101) and the turntable (102) through bolts respectively.
8. The adjustable cooling water joint internal cooling water ring vacuum pump according to claim 7, characterized in that the top of the support frame (101) is flush with the top of the turntable (102).
9. The inner cold water ring vacuum pump with adjustable cooling water joint as claimed in claim 7, characterized in that the top of the turntable (102) is provided with a plurality of bull's eye bearings (17), the top of the bull's eye bearings (17) is higher than the top of the turntable (102) and is in contact with the base (24); the first sealing ring (15) and the second sealing ring (16) are respectively contacted with the base (24).
10. An inner cold water ring vacuum pump with adjustable cooling water joint according to claim 7, characterized in that the water inlet hole (13) and the water outlet hole (14) respectively penetrate through the rotary table (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210420158.9A CN114607607A (en) | 2022-04-20 | 2022-04-20 | Inner-cooling water ring vacuum pump with adjustable cooling water joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210420158.9A CN114607607A (en) | 2022-04-20 | 2022-04-20 | Inner-cooling water ring vacuum pump with adjustable cooling water joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114607607A true CN114607607A (en) | 2022-06-10 |
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ID=81869691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210420158.9A Pending CN114607607A (en) | 2022-04-20 | 2022-04-20 | Inner-cooling water ring vacuum pump with adjustable cooling water joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114607607A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205908453U (en) * | 2016-07-06 | 2017-01-25 | 上海久信机电设备制造有限公司 | A cooling device for roots vacuum pump |
| CN206377048U (en) * | 2016-12-23 | 2017-08-04 | 上海久信机电设备制造有限公司 | A kind of vavuum pump |
| CN207018200U (en) * | 2017-07-15 | 2018-02-16 | 湖南和鑫新能源技术有限公司 | A kind of Roots's liquid ring vacuum pump assembly |
| CN207246012U (en) * | 2017-07-04 | 2018-04-17 | 剑阁县联动活塞制造有限公司 | A kind of water ring vacuum pump with cooling device |
| CN210738761U (en) * | 2019-08-15 | 2020-06-12 | 湖南凯利特能源科技有限公司 | Air compressor machine mount pad and air compressor machine |
| CN213116695U (en) * | 2020-07-31 | 2021-05-04 | 中众泰德能源集团有限公司 | Power plant unit water ring vacuum pump |
-
2022
- 2022-04-20 CN CN202210420158.9A patent/CN114607607A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205908453U (en) * | 2016-07-06 | 2017-01-25 | 上海久信机电设备制造有限公司 | A cooling device for roots vacuum pump |
| CN206377048U (en) * | 2016-12-23 | 2017-08-04 | 上海久信机电设备制造有限公司 | A kind of vavuum pump |
| CN207246012U (en) * | 2017-07-04 | 2018-04-17 | 剑阁县联动活塞制造有限公司 | A kind of water ring vacuum pump with cooling device |
| CN207018200U (en) * | 2017-07-15 | 2018-02-16 | 湖南和鑫新能源技术有限公司 | A kind of Roots's liquid ring vacuum pump assembly |
| CN210738761U (en) * | 2019-08-15 | 2020-06-12 | 湖南凯利特能源科技有限公司 | Air compressor machine mount pad and air compressor machine |
| CN213116695U (en) * | 2020-07-31 | 2021-05-04 | 中众泰德能源集团有限公司 | Power plant unit water ring vacuum pump |
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