CN113685356A - Cooling device for water ring vacuum pump for vacuumizing power station condenser - Google Patents
Cooling device for water ring vacuum pump for vacuumizing power station condenser Download PDFInfo
- Publication number
- CN113685356A CN113685356A CN202110939493.5A CN202110939493A CN113685356A CN 113685356 A CN113685356 A CN 113685356A CN 202110939493 A CN202110939493 A CN 202110939493A CN 113685356 A CN113685356 A CN 113685356A
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- Prior art keywords
- pipe
- cooling
- vacuum pump
- water ring
- cooling liquid
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- 238000001816 cooling Methods 0.000 title claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000000110 cooling liquid Substances 0.000 claims abstract description 55
- 239000007788 liquid Substances 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
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
- 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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- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/10—Auxiliary systems, arrangements, or devices for extracting, cooling, and removing non-condensable gases
Abstract
The invention discloses a cooling device for a water ring vacuum pump for vacuumizing a power station condenser, which comprises the condenser and is characterized in that: the condenser comprises a condenser and a condenser, wherein one end of the condenser is connected with a vacuumizing pipe in a through mode, one end of the vacuumizing pipe is provided with a vacuum pump main body, one side of the vacuum pump main body is correspondingly provided with an air inlet pipe and an air outlet pipe, a water ring cooling device is arranged inside the vacuum pump main body and comprises a cooling bag, the middle of one side of the vacuum pump main body is rotatably connected with a pump shaft through a bearing, a cooling liquid outer pipe is connected outside the pump shaft, pump blades are uniformly arranged on the outer wall of the cooling liquid outer pipe, square through holes are formed in the pump blades, the cooling bag is embedded inside the square through holes, one end of the cooling bag is connected with a cooling liquid discharge pipe, the other end of the cooling bag is connected with a cooling liquid inlet pipe, and a one-way valve II is arranged on the cooling liquid inlet pipe.
Description
Technical Field
The invention relates to the technical field of water ring vacuum pumps, in particular to a cooling device for a water ring vacuum pump for vacuumizing a condenser of a power station.
Background
The power station condenser is a heat exchanger for condensing steam discharged from a steam turbine, and is mainly applied to a steam turbine power device. The steam separated from the refrigerant is condensed into liquid on the cooling wall surface, so that the condenser keeps high vacuum degree.
The water ring vacuum pump for vacuumizing the condenser is used for assisting in maintaining the vacuum degree in the condenser, when steam is mainly in a gaseous state, the power required to be vacuumized is high due to high internal pressure, the power required to be vacuumized is low due to reduction of the internal pressure after the steam is condensed, the rotating speeds of impellers are different when the impellers are reflected on the vacuum pump, heat is generated due to friction between the water rings and blades in the impellers of the water ring vacuum pump when the impellers rotate, the water ring temperature rise amplitude is different due to different rotating speeds of the blades, and the traditional cooling method is that cooling liquid is continuously introduced, so that accurate and rapid cooling matching cannot be achieved;
in addition, water ring vacuum pump need filter high temperature steam and cool off at the in-process of evacuation, avoids the suction pump body inside to cause the water yield too much and calorific capacity too big, and some inside steam also can be taken away to water ring vacuum pump itself when exhausting, needs external even income pipeline to supply the water yield of water ring, needs design a series of external equipment, and the structure is complicated. Therefore, it is necessary to design a cooling device for a water ring vacuum pump for vacuumizing a power station condenser, which has a simple structure and is accurate and quick in cooling matching.
Disclosure of Invention
The invention aims to provide a cooling device for a water ring vacuum pump for vacuumizing a condenser of a power station, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a power station condenser is heat sink for evacuation water ring vacuum pump, includes the condenser, its characterized in that: one end of the condenser is connected with a vacuumizing tube in a through mode, one end of the vacuumizing tube is provided with a vacuum pump main body, an air inlet pipe and an air outlet pipe are correspondingly installed on one side of the vacuum pump main body, and a water ring cooling device is arranged inside the vacuum pump main body.
According to the technical scheme, the water ring cooling device comprises a cooling bag, the middle part of one side of the vacuum pump main body is rotatably connected with a pump shaft through a bearing, the outer part of the pump shaft is connected with a cooling liquid outer pipe, the outer wall of the cooling liquid outer pipe is uniformly provided with pump blades, the pump blades are provided with square through holes, and the cooling bag is embedded in the square through hole, one end of the cooling bag is connected with a cooling liquid discharge pipe, the other end of the cooling bag is connected with a cooling liquid inlet pipe, a one-way valve II is arranged on the cooling liquid inlet pipe, the cooling liquid discharge pipe is provided with a one-way valve I, one end of the cooling liquid inlet pipe and one end of the cooling liquid discharge pipe are communicated with the two sides of the cooling liquid outer pipe, the inside of coolant liquid outer tube is provided with flexible body, the both ends through connection of flexible body has the heat transfer inner tube, the both ends of heat transfer inner tube are provided with refrigerant liquid entry and refrigerant liquid export.
According to the technical scheme, one end of the pump shaft is connected with the swing rod, the middle of the swing rod is provided with the elastic expansion part, one end of the swing rod is connected with the balancing weight, the balancing weight is in contact with the flexible pipe body, and one end of the cooling bag is connected with the supply deformation part.
According to the technical scheme, one end of the balancing weight is provided with the extension part, and the extension part is arc-shaped.
According to the technical scheme, the inner wall of the cooling liquid outer pipe is correspondingly hinged with the liquid baffle plate, and one side of the liquid baffle plate is in contact with the flexible pipe body.
According to the technical scheme, a condensate cavity is arranged inside the air inlet pipe, a tension film is arranged at the bottom of the condensate cavity, one side of the tension film is flush with the inner wall of the vacuum pump main body, one end of the condensate cavity is connected with a water ring supply pipe in a penetrating manner, one end of the water ring supply pipe is connected with the inner wall of the vacuum pump main body in a penetrating manner, a baffle is arranged at the pipe orifice of the water ring supply pipe, and the baffle and the tension film are of a matching structure.
According to the technical scheme, the inside of the gas condensation cavity is provided with the plurality of cold guide grooves, the inner walls of the cold guide grooves are obliquely fixed with the cold guide pieces through welding, one ends of the cold guide pieces stretch into the inside of the vacuum pump main body, the bottom of the gas condensation cavity is provided with the vent pipe, and one end of the vent pipe is communicated with the inner wall of the vacuum pump main body.
According to the technical scheme, one end of the pump blade is provided with the elastic traction device, the elastic traction device comprises an eccentric wheel, the middle of the eccentric wheel is connected with the pump shaft, one side of the eccentric wheel is uniformly provided with rotating pins in a circumferential shape, the rotating pins are connected with elastic traction wires, the elastic traction wires are connected with the cooling bag, and the cooling bag is in sliding connection with the pump blade.
According to the technical scheme, a sealing ring is arranged between the cooling liquid outer pipe and the heat exchange inner pipe.
According to the technical scheme, the outer surface of the cooling bag is in a streamline shape.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the water ring cooling device is arranged, so that the water ring can be cooled, the temperature rise phenomenon in the running process is avoided, the contact area of the cooling liquid and the water ring can be adjusted according to the rotating speed of the pump shaft by arranging the cooling bag, the supply deformation part and other components, and the cooling effect is good.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of a vacuum pump main body according to the present invention;
FIG. 3 is a schematic view of the water ring cooling apparatus of the present invention;
FIG. 4 is a schematic view of the internal structure of the outer tube of the cooling liquid according to the present invention;
in the figure: 1. a condenser; 11. vacuumizing a tube; 2. a vacuum pump main body; 21. an air inlet pipe; 211. a condensate chamber; 212. a water ring supply pipe; 213. a tensile film; 22. an air outlet pipe; 23. a pump shaft; 24. a pump blade; 3. an elastic traction device; 4. a water ring cooling device; 41. a heat exchange inner tube; 42. a coolant outer tube; 421. a flexible pipe body; 43. a cooling bladder; 431. a deformation part is supplied; 44. cooling the liquid discharge pipe; 441. a one-way valve I; 45. cooling the liquid inlet pipe; 451. a second one-way valve; 46. a swing rod; 461. an elastic expansion part; 47. a balancing weight; 471. an extension part; 48. a liquid baffle; 481. an elastic element.
Detailed Description
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, the present invention provides a technical solution: the utility model provides a power station condenser is heat sink for water ring vacuum pump for evacuation, includes condenser 1, its characterized in that: one end of the condenser 1 is connected with a vacuumizing pipe 11 in a through manner, one end of the vacuumizing pipe 11 is provided with a vacuum pump main body 2, one side of the vacuum pump main body 2 is correspondingly provided with an air inlet pipe 21 and an air outlet pipe 22, a water ring cooling device 4 is arranged inside the vacuum pump main body 2 and used for cooling a water ring in the operation process of the vacuum pump main body 2 to prevent the water ring from being overhigh in temperature in the operation process, and the vacuum pump main body 2 is used for vacuumizing the condenser 1 to maintain the vacuum degree in the condenser 1;
as shown in fig. 2-3, the water ring cooling device 4 includes a cooling bag 43, the pump shaft 23 is rotatably connected to the middle portion of one side of the vacuum pump main body 2 through a bearing, the outer portion of the pump shaft 23 is connected with a cooling liquid outer tube 42, the outer wall of the cooling liquid outer tube 42 is uniformly provided with pump blades 24, the pump blades 24 are provided with square through holes, the cooling bag 43 is embedded inside the square through holes, one end of the cooling bag 43 is connected with a cooling liquid discharge tube 44, the other end of the cooling bag 43 is connected with a cooling liquid inlet tube 45, the cooling liquid inlet tube 45 is provided with a check valve II 451, the cooling liquid discharge tube 44 is provided with a check valve I441, one ends of the cooling liquid inlet tube 45 and the cooling liquid discharge tube 44 are communicated with two sides of the cooling liquid outer tube 41, the inner portion of the cooling liquid outer tube 42 is provided with a flexible tube 421, two ends of the flexible tube 421 are communicated with the heat exchange inner tube 41, two ends of the heat exchange inner tube 41 are provided with a refrigerant inlet and a refrigerant outlet, the cooling bag 43 is integrated on the pump blade 24, and is cooled by direct contact of the cooling bag 43 and the water ring, compared with a conventional wall-attached cooling mode, the cooling bag has a large contact area with the water ring, and can generate a relatively uniform cooling effect on the water ring along with convection generated by operation of the water ring, the cooling effect is good, a circulation passage of cooling liquid is from the cooling liquid outer pipe 42 to the cooling liquid inlet pipe 45, then the cooling liquid enters the one-way valve II 451 and flows into the cooling bag 43, then the cooling liquid is discharged from the cooling liquid discharge pipe 44 to form circulation of the cooling water, the cooling water enters the inside of the cooling liquid outer pipe 42 and is cooled through the cooling liquid outer pipe 41, and thus cooling circulation is realized;
as shown in fig. 4, one end of the pump shaft 23 is connected with a swing rod 46, the middle of the swing rod 46 is provided with an elastic expansion part 461, one end of the swing rod 46 is connected with a weight block 47, the weight block 47 is in contact with the flexible pipe 421, one end of the cooling bag 43 is connected with a supply deformation part 431, when the pump shaft 23 operates, the swing rod 46 swings, and the elastic expansion part 461 is stretched due to outward expansion of the inertia weight block 47, at this time, the weight block 47 extends outward and props up the flexible pipe 421, so that the space between the flexible pipe 421 and the cooling liquid outer pipe 42 is reduced, more cooling liquid participates in the cooling circulation of the cooling bag 43, the cooling area is increased, otherwise, the space between the flexible pipe 421 and the cooling liquid outer pipe 42 is reduced, the cooling area is reduced, and the cooling effect can be conveniently adjusted according to the rotating speed;
one end of the counterweight 47 is provided with an extension part 471, the extension part 471 is arc-shaped, and the extension part 471 is used for increasing the contact area between the counterweight 47 and the flexible pipe body 421, so that the deformation effect is increased, and the area change is more obvious;
the inner wall of the cooling liquid outer pipe 42 is correspondingly hinged with a liquid baffle plate 48, one side of the liquid baffle plate 48 is in contact with the flexible pipe body 421, and the liquid baffle plate 48 is used for blocking liquid on two sides, so that the liquid cannot directly enter the cooling liquid inlet pipe 45 from the upper part, and the cooling is better realized;
as shown in fig. 1, a condensate chamber 211 is arranged inside the air inlet pipe 21, a tension film 213 is arranged at the bottom of the condensate chamber 211, one side of the tension film 213 is flush with the inner wall of the vacuum pump main body 2, one end of the condensate chamber 211 is connected with a water ring supply pipe 212 in a through manner, one end of the water ring supply pipe 212 is connected with the inner wall of the vacuum pump main body 2 in a through manner, a baffle is arranged at the nozzle of the water ring supply pipe 212, the baffle and the tension film 213 are in a matched structure, and after condensed water cooled by steam enters the condensate chamber 211, moisture is accumulated inside the condensate chamber, when the amount of the water ring is insufficient due to loss, the pressure felt by the tension film 213 is reduced, so that the baffle is lifted up due to deformation, the condensed water is supplied to the inside of the vacuum pump main body 2 from the water ring supply pipe 212, thereby facilitating the utilization of the condenser 1 and supplying the water ring in real time without an external water ring supply pipeline, and saving space;
the inside of the condensing cavity 211 is provided with a plurality of cooling guide grooves, the inner walls of the cooling guide grooves are obliquely fixed with cooling guide fins by welding, one ends of the cooling guide fins extend into the inside of the vacuum pump main body 2, the bottom of the condensing cavity 211 is provided with vent pipes, one ends of the vent pipes are communicated with the inner wall of the vacuum pump main body 2, when water in the condenser 1 enters the condensing cavity 211, the temperature of a water ring in the vacuum pump main body 2 is transferred to the cooling guide grooves through the cooling guide fins, so that high-temperature steam is cooled, and cooled gas enters the vacuum pump main body 2 from the vent pipes and then is discharged from the gas outlet pipe 22 for vacuum pumping, so that the steam and the water are conveniently separated, the moisture in the steam is collected, and the gas is discharged;
one end of the pump blade 24 is provided with an elastic traction device 3, the elastic traction device 3 comprises an eccentric wheel, the middle part of the eccentric wheel is connected with the pump shaft 23, one side of the eccentric wheel is uniformly provided with rotating pins in a circumferential shape, the rotating pins are connected with elastic traction wires, the elastic traction wires are connected with a cooling bag 43, the cooling bag 43 is in sliding connection with the pump blade 24, when the pump blade 24 starts to run, the eccentric wheel is driven to rotate, the orientation of each rotating pin is unchanged and the eccentric wheel rotates, when the rotating pin moves to the far end, the elastic traction wires can drive the cooling bag 43 to gather to the center of the pump blade 24, when the elastic traction wires at the near end contract and drive the cooling bag 43 to expand outwards, when the contact area of the blade and the water ring is small, the elastic traction wires are used for expanding the contact area of the cooling bag 43 and the water ring, and when the contact area of the blade and the water ring is large, the water ring cooling device is used for reducing the resistance of water and further improving the cooling effect of the water ring;
a sealing ring is arranged between the cooling liquid outer pipe 42 and the heat exchange inner pipe 41, and the sealing ring is used for preventing a cooling medium in the heat exchange inner pipe 41 from flowing out when the heat exchange inner pipe 41 and the cooling liquid outer pipe 42 rotate relatively, so that the sealing property is improved;
the outer surface of the cooling bag 43 is streamline, and the streamline can reduce the resistance of water when the cooling bag 43 and the water ring move relatively, thereby saving energy.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a power station condenser is heat sink for water ring vacuum pump for evacuation, includes condenser (1), its characterized in that: one end of the condenser (1) is in through connection with a vacuumizing pipe (11), one end of the vacuumizing pipe (11) is provided with a vacuum pump main body (2), one side of the vacuum pump main body (2) is correspondingly provided with an air inlet pipe (21) and an air outlet pipe (22), and a water ring cooling device (4) is arranged inside the vacuum pump main body (2);
the water ring cooling device (4) comprises a cooling bag (43), the middle part of one side of the vacuum pump main body (2) is rotatably connected with a pump shaft (23) through a bearing, the outside of the pump shaft (23) is connected with a cooling liquid outer pipe (42), pump blades (24) are uniformly installed on the outer wall of the cooling liquid outer pipe (42), square through holes are formed in the pump blades (24), the cooling bag (43) is embedded in the square through holes, one end of the cooling bag (43) is connected with a cooling liquid discharge pipe (44), the other end of the cooling bag (43) is connected with a cooling liquid inlet pipe (45), a check valve II (451) is arranged on the cooling liquid inlet pipe (45), a check valve I (441) is arranged on the cooling liquid discharge pipe (44), and one ends of the cooling liquid inlet pipe (45) and the cooling liquid discharge pipe (44) are communicated with the two sides of the cooling liquid outer pipe (41), a flexible pipe body (421) is arranged inside the cooling liquid outer pipe (42), two ends of the flexible pipe body (421) are connected with a heat exchange inner pipe (41) in a penetrating way, and two ends of the heat exchange inner pipe (41) are provided with a refrigerating liquid inlet and a refrigerating liquid outlet;
the vacuum pump is characterized in that a condensate cavity (211) is arranged in the air inlet pipe (21), a tension film (213) is arranged at the bottom of the condensate cavity (211), one side of the tension film (213) is flush with the inner wall of the vacuum pump main body (2), one end of the condensate cavity (211) is connected with a water ring supply pipe (212) in a penetrating manner, one end of the water ring supply pipe (212) is connected with the inner wall of the vacuum pump main body (2) in a penetrating manner, a baffle is arranged at a pipe orifice of the water ring supply pipe (212), and the baffle and the tension film (213) are of a matched structure.
2. The cooling device for the water ring vacuum pump for vacuumizing the power station condenser according to claim 1 is characterized in that: the inside of the gas condensation chamber (211) is provided with a plurality of cold guide grooves, the inner wall of each cold guide groove is obliquely fixed with a cold guide sheet through welding, one end of each cold guide sheet extends into the inside of the vacuum pump main body (2), the bottom of the gas condensation chamber (211) is provided with a vent pipe, and one end of each vent pipe is communicated with the inner wall of the vacuum pump main body (2).
3. The cooling device for the water ring vacuum pump for vacuumizing the power station condenser according to claim 1 is characterized in that: and a sealing ring is arranged between the cooling liquid outer pipe (42) and the heat exchange inner pipe (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110939493.5A CN113685356A (en) | 2020-10-23 | 2020-10-23 | Cooling device for water ring vacuum pump for vacuumizing power station condenser |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110939493.5A CN113685356A (en) | 2020-10-23 | 2020-10-23 | Cooling device for water ring vacuum pump for vacuumizing power station condenser |
| CN202011146599.1A CN112360744B (en) | 2020-10-23 | 2020-10-23 | Cooling device for water ring vacuum pump for vacuumizing of power station condenser |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011146599.1A Division CN112360744B (en) | 2020-10-23 | 2020-10-23 | Cooling device for water ring vacuum pump for vacuumizing of power station condenser |
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| Publication Number | Publication Date |
|---|---|
| CN113685356A true CN113685356A (en) | 2021-11-23 |
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| CN202011146599.1A Active CN112360744B (en) | 2020-10-23 | 2020-10-23 | Cooling device for water ring vacuum pump for vacuumizing of power station condenser |
| CN202110939493.5A Pending CN113685356A (en) | 2020-10-23 | 2020-10-23 | Cooling device for water ring vacuum pump for vacuumizing power station condenser |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011146599.1A Active CN112360744B (en) | 2020-10-23 | 2020-10-23 | Cooling device for water ring vacuum pump for vacuumizing of power station condenser |
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| CN (2) | CN112360744B (en) |
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| CN113266550B (en) * | 2021-06-02 | 2022-09-06 | 华能榆社发电有限责任公司 | Vacuum pump inlet cooling device |
| CN115895811A (en) * | 2022-11-04 | 2023-04-04 | 安徽紫约生物科技有限公司 | Blueberry fruit wine fermentation device and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2184300A1 (en) * | 1995-08-31 | 1997-03-01 | Paul Henry Bent | Fan having blades with flanges |
| CN201225296Y (en) * | 2008-06-17 | 2009-04-22 | 华北电力大学 | Water ring vacuum pump capable of improving condensing steam turbine efficiency |
| CN203177688U (en) * | 2013-01-30 | 2013-09-04 | 北京世纪源博科技股份有限公司 | Efficient water ring vacuum pump system for condensing steam turbine unit |
| CN205349746U (en) * | 2016-01-19 | 2016-06-29 | 东营立洋化工有限公司 | Device of water ring vacuum pump work water cooling and deoiling |
| CN205841197U (en) * | 2016-08-04 | 2016-12-28 | 湖南大唐先一能源管理有限公司 | Roots's water-ring vacuum system with preposition combination cooling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1317568A (en) * | 1969-10-11 | 1973-05-23 | Plessey Co Ltd | Liquid ring pumps |
| CN110578688B (en) * | 2019-08-07 | 2022-01-18 | 湖北同方高科泵业有限公司 | Water ring pump with internal refrigerating system |
| CN111594441B (en) * | 2020-05-21 | 2022-10-14 | 上海工程技术大学 | Small-volume water-saving water ring pump device |
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2020
- 2020-10-23 CN CN202011146599.1A patent/CN112360744B/en active Active
- 2020-10-23 CN CN202110939493.5A patent/CN113685356A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2184300A1 (en) * | 1995-08-31 | 1997-03-01 | Paul Henry Bent | Fan having blades with flanges |
| CN201225296Y (en) * | 2008-06-17 | 2009-04-22 | 华北电力大学 | Water ring vacuum pump capable of improving condensing steam turbine efficiency |
| CN203177688U (en) * | 2013-01-30 | 2013-09-04 | 北京世纪源博科技股份有限公司 | Efficient water ring vacuum pump system for condensing steam turbine unit |
| CN205349746U (en) * | 2016-01-19 | 2016-06-29 | 东营立洋化工有限公司 | Device of water ring vacuum pump work water cooling and deoiling |
| CN205841197U (en) * | 2016-08-04 | 2016-12-28 | 湖南大唐先一能源管理有限公司 | Roots's water-ring vacuum system with preposition combination cooling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112360744B (en) | 2021-07-30 |
| CN112360744A (en) | 2021-02-12 |
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Application publication date: 20211123 |
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