CN112112866A - Electrified oil supplementing device for high-voltage circuit breaker - Google Patents
Electrified oil supplementing device for high-voltage circuit breaker Download PDFInfo
- Publication number
- CN112112866A CN112112866A CN202010778628.XA CN202010778628A CN112112866A CN 112112866 A CN112112866 A CN 112112866A CN 202010778628 A CN202010778628 A CN 202010778628A CN 112112866 A CN112112866 A CN 112112866A
- Authority
- CN
- China
- Prior art keywords
- oil
- circuit breaker
- voltage circuit
- pipe
- flow passage
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0427—Heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0423—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses an electrified oil supplementing device of a high-voltage circuit breaker, which comprises a hydraulic oil barrel for supplementing oil and an oil pipeline for connecting oil cylinders on the high-voltage circuit breaker, wherein a shunting device and a centrifugal degassing device are arranged on the oil pipeline. The invention provides an electrified oil supplementing device of a high-voltage circuit breaker, which is convenient for oil supplementation, ensures the personal safety of oil supplementing personnel, avoids gas from entering along with hydraulic oil, and ensures the normal work of the high-voltage circuit breaker.
Description
Technical Field
The invention relates to the technical field of oil supplement of power equipment, in particular to an electrified oil supplement device of a high-voltage circuit breaker.
Background
The high-voltage circuit breaker plays a role in controlling and protecting in an electric power system, hydraulic oil leakage is caused by the aging of oil pipe seals due to the long-term operation of the high-voltage circuit breaker, the high-voltage circuit breaker needs to be supplemented with hydraulic oil, the oil is supplemented in a way of pouring the hydraulic oil into an original oil tank upper cover, but a circuit breaker oil cylinder is positioned at the upper part of the circuit breaker and is about 3 meters away from a live conductor, when the circuit breaker is in an operating state, strong induced electricity exists when oil is supplemented to the oil tank, potential safety hazards exist when the oil is supplemented in an electrified state, a certain amount of gas is carried into the oil cylinder when the oil is supplemented, under the high-voltage condition, the influence of the permeated gas is amplified, the condition that the circuit breaker operating device cannot be pressed is finally caused, the performance of the high-voltage circuit breaker is directly influenced, even the safety of high-voltage equipment of a nuclear power station is threatened, and a relatively serious safety accident and economic loss are caused.
For example, the "charged oil supplementing device for a high voltage circuit breaker" disclosed in the chinese patent document has publication number CN 210040042U, and includes a frame, on which a first support plate and a second support plate are fixedly connected; the first supporting plate is rotatably connected with a first rotating disc penetrating through the first supporting plate, the first rotating disc is fixedly connected with a plurality of first connecting pipes which penetrate through the first rotating disc and are distributed in a circular shape, and a circle formed by the first connecting pipes and the rotating disc are concentric circles; the first connecting pipe is provided with a flowmeter and a valve, the first connecting pipe is communicated with a transparent hose, the transparent hose is communicated with an oil drain valve of the oil cylinder, and one end of the first connecting pipe, which is far away from the transparent hose, is provided with a butt joint; a plurality of movable second connecting pipes corresponding to the first connecting pipes are arranged on the second supporting plate, one ends of the second connecting pipes are provided with butt joints, and one ends of the second connecting pipes, which are far away from the butt joints, are communicated with the oil storage cylinder; although the utility model discloses a have easy operation, mend advantages such as oily efficient, security are strong, nevertheless can not carry out the degasification to hydraulic oil, have great potential safety hazard.
Disclosure of Invention
The invention aims to solve the problems of potential safety hazards and the like in the process of electrified oil supplement in the prior art, provides the electrified oil supplement device for the high-voltage circuit breaker, is convenient to supplement oil, ensures the personal safety of oil supplement personnel, avoids gas from entering along with hydraulic oil, and ensures the normal work of the high-voltage circuit breaker.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a high voltage circuit breaker electrified oil supplementing device, is including the hydraulic oil bucket that is used for mending oil, the oil pipe way that is used for connecting the hydro-cylinder on the high voltage circuit breaker be provided with diverging device and centrifugal gas removal equipment on the oil pipe way.
In the technical scheme, the hydraulic oil barrel is used for providing hydraulic oil for supplementing the oil cylinder of the high-voltage circuit breaker, the hydraulic oil enters the oil cylinder on the high-voltage circuit breaker from the hydraulic oil barrel through the oil pipeline, the operation replaces an original electrified oil supplementing mode of pouring the hydraulic oil into the upper cover of the oil tank, the oil supplementation is convenient, and the personal safety of operating personnel is ensured; in addition, the distribution device is favorable for converging the hydraulic oil in the hydraulic oil barrel into the plurality of oil cylinders, and the centrifugal degassing device is favorable for eliminating gas in the hydraulic oil, so that the gas is prevented from entering along with the hydraulic oil, and the normal work of the high-voltage circuit breaker is ensured.
Preferably, the centrifugal degassing device comprises a centrifugal separation pipe, an oil inlet pipe, an oil outlet pipe, an exhaust pipe and an air extraction device, the exhaust pipe is communicated with the centrifugal separation pipe and the air extraction device, the centrifugal separation pipe comprises a conical flow passage, the large end of the conical flow passage is communicated with the exhaust pipe, the small end of the conical flow passage is communicated with the oil outlet pipe, a tangential oil inlet is arranged on the side wall of the conical flow passage, and the tangential oil inlet is communicated with the oil inlet pipe.
Centrifugal degassing unit passes through centrifugal separation pipe with hydraulic oil and gas separation, when using, hydraulic oil enters into in the centrifugal separation pipe from the tangential oil inlet, hydraulic oil forms the vortex flow in circular cone form runner, the vortex flow produces centrifugal force, because the centrifugal force that bubble and hydraulic oil received is different, gaseous the central axis that tends to conical runner, hydraulic oil is close to conical runner wall, therefore gaseous just gathers near runner central axis and then discharges from the blast pipe, the formation of vortex flow makes inside runner pressure distribution reduce from wall to central axis gradient simultaneously, the gradient change of pressure forces partial gaseous the precipitation of having dissolved in hydraulic oil, gas in the hydraulic oil has effectively been eliminated.
Preferably, the centrifugal separation pipe further comprises a transition pipe, the transition pipe comprises a horn-shaped flow passage and a cylindrical flow passage which are integrally arranged, the cylindrical flow passage is communicated with the small end of the conical flow passage and the large end of the horn-shaped flow passage, and the oil outlet pipe is connected with the large end of the horn-shaped flow passage.
The transition pipe is provided with and does benefit to and is used for reducing the velocity of flow, and cylindric runner intercommunication tubaeform runner and coniform runner, the oil pipe is connected to tubaeform runner main aspects, and along with the increase of runner pipe diameter, the velocity of flow reduces, enters into the velocity of flow reduction in the oil pipe, has avoided the velocity of flow too big to cause inconveniently.
Preferably, a supercharging device is arranged on the oil inlet pipe.
The arrangement of the pressurizing device is beneficial to increasing the flow velocity of the hydraulic oil in the centrifugal separation pipe, is beneficial to forming a swirling flow, and improves the separation efficiency.
Preferably, the air extraction device comprises an air collection tank and an air extraction pump arranged at the upper end of the air collection tank.
The gas can take out a part of hydraulic oil in the discharge process, the gas collection tank is arranged for separating the discharged gas and the hydraulic oil, the gas in the gas collection tank is conveniently pumped out in time by the aid of the air pump, and the gas in the centrifugal separation pipe is conveniently discharged from the exhaust pipe by the aid of the air pump.
Preferably, the centrifugal degassing device further comprises an oil collecting tank, and the oil collecting tank is communicated with the lower end of the gas collecting tank.
The oil collecting tank is used for collecting the hydraulic oil discharged from the gas collecting tank, so that waste is avoided, and the phenomenon that the efficiency of the air pump is influenced when the amount of the hydraulic oil in the gas collecting tank is too much and the hydraulic oil is sucked into the air pump is avoided.
Preferably, a heating sheet is provided on the side wall of the conical flow path.
When the temperature rises, the solubility of gas can drop, and then the heating plate be provided with and do benefit to further the gas in the hydraulic oil of discharging, improve exhaust efficiency.
Preferably, a cooling device for cooling is sleeved outside the oil outlet pipeline.
The cooling device is arranged to reduce the temperature of the hydraulic oil in the oil outlet pipe and improve the safety.
Therefore, the invention has the following beneficial effects:
(1) the oil is convenient to supplement, the personal safety of oil supplementing personnel is ensured, gas is prevented from entering along with hydraulic oil, and the normal work of the high-voltage circuit breaker is ensured;
(2) the centrifugal separation pipe effectively eliminates gas in the hydraulic oil in a mode of enabling the hydraulic oil to form a vortex flow in the conical flow passage;
(3) the arrangement of the pressurizing device is beneficial to increasing the flow velocity of the hydraulic oil in the centrifugal separation pipe, is convenient to form a swirling flow, and improves the separation efficiency;
(4) the arrangement of the heating sheet on the side wall of the conical flow channel reduces the gas solubility and effectively improves the exhaust efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an electrified oil supplementing device of a high-voltage circuit breaker;
FIG. 2 is a schematic view of a first configuration of a centrifugal degassing apparatus;
FIG. 3 is a schematic view of a second configuration of the centrifugal degassing apparatus;
in the figure: 1. the device comprises an oil cylinder 2, an oil pipeline 3, a flow dividing device 4, a centrifugal degassing device 401, an oil outlet pipe 402, a cooling device 403, a centrifugal separation pipe 404, an oil inlet pipe 405, a pressurizing device 406, an exhaust pipe 407, a gas collecting tank 408, an air suction pump 409, an oil collecting tank 410, a horn-shaped flow passage 411, a cylindrical flow passage 412, a conical flow passage 5 and a hydraulic oil barrel.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
Example 1:
in the embodiment 1 shown in fig. 1 and fig. 2, the electrified oil supplementing device for the high-voltage circuit breaker comprises a hydraulic oil barrel 5 and an oil pipeline 2, wherein the hydraulic oil barrel 5 is used for supplementing oil, hydraulic oil enters the oil cylinder 1 on the high-voltage circuit breaker from the hydraulic oil barrel 5 through the oil pipeline 2, the oil pipeline 2 is provided with a flow dividing device 3 and a centrifugal degassing device 4, the centrifugal degassing device 4 comprises a centrifugal separation pipe 403, an oil inlet pipe 404, an oil outlet pipe 401, an exhaust pipe 406 and an air extraction device, the exhaust pipe 406 is used for communicating the centrifugal separation pipe 403 and the air extraction device, wherein the centrifugal separation chamber comprises a conical flow passage 412, the large end of the conical flow passage 412 is connected with the exhaust pipe 406, the small end is connected with the oil outlet pipe 401, in addition, a tangential oil inlet is formed in the side wall of the conical flow passage 412 and is communicated with the oil inlet pipe 404, and the tangential oil inlet is formed in the position, close to the large end, of the side wall of the conical flow passage 412.
In the technical scheme, hydraulic oil enters the oil cylinder 1 on the high-voltage circuit breaker from the hydraulic oil barrel 5 through the oil pipeline 2, an original electrified oil supplementing mode that hydraulic oil is poured into the upper cover of the oil tank is replaced, oil supplementing is convenient, and personal safety of operating personnel is guaranteed; the arrangement of the flow dividing device 3 is beneficial to converging the gas in the hydraulic oil barrel 5 into the plurality of oil cylinders 1, the arrangement of the centrifugal degassing device 4 is beneficial to eliminating the gas in the hydraulic oil, the gas is prevented from entering along with the hydraulic oil, the normal operation of the high-voltage circuit breaker is ensured, when the oil cylinder 1 of the high-voltage circuit breaker is replenished, the hydraulic oil enters the conical flow passage 412 of the centrifugal separation pipe 403 from the tangential oil inlet, the hydraulic oil forms a vortex flow in the conical flow passage 412, the vortex flow generates centrifugal force, the gas tends to the central axis of the conical flow passage due to the difference of the centrifugal force of the bubbles and the hydraulic oil, the hydraulic oil is close to the wall surface of the conical flow passage, therefore, the gas is gathered near the central axis of the flow passage and then discharged from the exhaust pipe 406, meanwhile, the formation of the vortex flow causes the gradient reduction of the pressure distribution of the internal flow passage, effectively eliminate gas in the hydraulic oil, avoid gas to enter into hydro-cylinder 1 along with hydraulic oil, guarantee high-voltage circuit breaker normal operating.
In addition, in order to ensure that the hydraulic oil forms a swirling flow in the conical flow passage 412, a pressurizing device 405 is arranged on the oil inlet pipe 404, and the arrangement of the pressurizing device 405 is beneficial to increasing the flow speed of the hydraulic oil in the centrifugal separation pipe 403 and improving the separation efficiency.
Example 2:
as shown in fig. 3, the embodiment 2 is basically the same as the embodiment 1, except that: centrifugal separation pipe 403 still includes the transition pipe, the transition pipe sets up between the tip of coniform runner 412 and goes out oil pipe 401, the transition pipe includes tubaeform runner 410 and cylindric runner 411 that the integral type set up, wherein cylindric runner 411 communicates the tip of coniform runner 412 and the main aspects of tubaeform runner 410, tubaeform runner 410's main aspects is connected with play oil pipe 401, the transition pipe be provided with do benefit to and be used for reducing the velocity of flow, cylindric runner 411 communicates tubaeform runner 410 and coniform runner 412, oil pipe 401 is connected to tubaeform runner 410 main aspects, along with the increase of runner pipe diameter, the velocity of flow reduces, the velocity of flow that enters into in the play oil pipe 401 reduces, the too big inconvenience that causes of velocity of flow has been avoided.
Example 3:
the embodiment 3 is basically the same as the embodiment 1, except that: the air extracting device comprises an air collecting tank 407 and an air extracting pump 408, a part of hydraulic oil can be brought out by air in the exhaust process, the air collecting tank 407 is used for separating the exhausted air and the hydraulic oil, the air extracting pump 408 is used for facilitating the timely extraction of the air in the air collecting tank 407, and meanwhile, the air extracting pump 408 is used for facilitating the driving of the air in the centrifugal separation pipe 403 to be exhausted from the exhaust pipe 406; the air pump 408 is arranged at the upper end of the air collecting tank 407, so that the failure of the air pump 408 caused by the fact that hydraulic oil is simultaneously pumped out by the air pump 408 in the air pumping process is avoided.
Further, the centrifugal degassing device 4 further comprises an oil collecting tank 409, the oil collecting tank 409 is communicated with the lower end of the gas collecting tank 407, and the oil collecting tank 409 is used for collecting hydraulic oil discharged from the gas collecting tank 407, so that waste is avoided, and the phenomenon that the efficiency of the air suction pump 408 is affected due to the fact that the amount of the hydraulic oil in the gas collecting tank 407 is too large and the hydraulic oil is sucked into the air suction pump 408 is avoided.
Example 4:
the embodiment 4 is basically the same as the embodiment 1, except that: the heating plates are arranged on the side walls of the conical flow passage 412, and when the temperature rises, the solubility of the gas can be reduced, so that the arrangement of the heating plates is beneficial to further discharging the gas in the hydraulic oil.
Furthermore, a cooling device 402 for cooling is sleeved outside the oil outlet pipe 401, and the cooling device 402 is used for reducing the temperature of the hydraulic oil in the oil outlet pipe 401, so that the safety is improved.
It should be noted that as used in the foregoing description, the terms "front," "back," "left," "right," "upper" and "lower" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
The above examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (8)
1. The electrified oil supplementing device for the high-voltage circuit breaker is characterized by comprising a hydraulic oil barrel (5) for supplementing oil and an oil pipeline (2) for connecting an oil cylinder (1) on the high-voltage circuit breaker, wherein a flow dividing device (3) and a centrifugal degassing device (4) are arranged on the oil pipeline (2).
2. The electrified oil supplementing device of the high-voltage circuit breaker according to claim 1, wherein the centrifugal degassing device (4) comprises a centrifugal separation tube (403), an oil inlet tube (404), an oil outlet tube (401), an exhaust tube (406) and an air extraction device, the exhaust tube (406) is communicated with the centrifugal separation tube (403) and the air extraction device, the centrifugal separation tube (403) comprises a conical flow channel (412), the large end of the conical flow channel (412) is communicated with the exhaust tube (406) and the small end of the conical flow channel is communicated with the oil outlet tube (401), a tangential oil inlet is arranged on the side wall of the conical flow channel (412), and the tangential oil inlet is communicated with the oil inlet tube (404).
3. The electrified oil supplementing device of the high-voltage circuit breaker according to claim 2, wherein the centrifugal separation pipe (403) further comprises a transition pipe, the transition pipe comprises a horn-shaped flow passage (410) and a cylindrical flow passage (411) which are integrally arranged, the cylindrical flow passage (411) is communicated with the small end of the conical flow passage (412) and the large end of the horn-shaped flow passage (410), and the oil outlet pipe (401) is connected with the large end of the horn-shaped flow passage (410).
4. The charged oil supplementing device of the high-voltage circuit breaker according to claim 2, characterized in that a pressure boosting device (405) is arranged on the oil inlet pipe (404).
5. The charged oil supplementing device of the high-voltage circuit breaker according to any one of claims 2 to 4, characterized in that the air extracting device comprises a gas collecting tank (407) and an air extracting pump (408) arranged at the upper end of the gas collecting tank (407).
6. The charged oil supplementing device of the high-voltage circuit breaker according to claim 5, wherein the centrifugal degassing device (4) further comprises an oil collecting tank (409), and the oil collecting tank (409) is communicated with the lower end of the gas collecting tank (407).
7. The charged oil supplementing device of the high-voltage circuit breaker according to any one of claims 2 to 4, characterized in that a heating sheet is arranged on the side wall of the conical flow passage (412).
8. The charged oil supplementing device of the high-voltage circuit breaker according to claim 7, wherein a cooling device (402) for cooling is sleeved outside the oil outlet pipe (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778628.XA CN112112866A (en) | 2020-08-05 | 2020-08-05 | Electrified oil supplementing device for high-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778628.XA CN112112866A (en) | 2020-08-05 | 2020-08-05 | Electrified oil supplementing device for high-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112112866A true CN112112866A (en) | 2020-12-22 |
Family
ID=73799162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010778628.XA Pending CN112112866A (en) | 2020-08-05 | 2020-08-05 | Electrified oil supplementing device for high-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112112866A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182377A (en) * | 2021-05-10 | 2021-07-30 | 大昌汽车部件股份有限公司 | Piston blank and processing technology thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2279200Y (en) * | 1996-09-19 | 1998-04-22 | 中国人民解放军工程兵工程学院 | Liquid bubble removing device |
| CN106641724A (en) * | 2017-01-23 | 2017-05-10 | 国网河南省电力公司检修公司 | Portable on-line automatic oil replenishing device for high-voltage circuit breaker |
| CN106975245A (en) * | 2017-04-26 | 2017-07-25 | 浙江大学 | Gas-liquid separation device with taper collection chamber and helical form honeycomb duct |
| CN110259683A (en) * | 2018-03-12 | 2019-09-20 | 广东威灵汽车部件有限公司 | Oil separating device, compressor and the vehicle with it |
| CN210040042U (en) * | 2019-06-27 | 2020-02-07 | 国网浙江省电力有限公司嘉兴供电公司 | Electrified oil supplementing device of high-voltage circuit breaker |
-
2020
- 2020-08-05 CN CN202010778628.XA patent/CN112112866A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2279200Y (en) * | 1996-09-19 | 1998-04-22 | 中国人民解放军工程兵工程学院 | Liquid bubble removing device |
| CN106641724A (en) * | 2017-01-23 | 2017-05-10 | 国网河南省电力公司检修公司 | Portable on-line automatic oil replenishing device for high-voltage circuit breaker |
| CN106975245A (en) * | 2017-04-26 | 2017-07-25 | 浙江大学 | Gas-liquid separation device with taper collection chamber and helical form honeycomb duct |
| CN110259683A (en) * | 2018-03-12 | 2019-09-20 | 广东威灵汽车部件有限公司 | Oil separating device, compressor and the vehicle with it |
| CN210040042U (en) * | 2019-06-27 | 2020-02-07 | 国网浙江省电力有限公司嘉兴供电公司 | Electrified oil supplementing device of high-voltage circuit breaker |
Non-Patent Citations (1)
| Title |
|---|
| 李硕等: "《液压与气压传动》", 31 January 2019, 华中科技大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182377A (en) * | 2021-05-10 | 2021-07-30 | 大昌汽车部件股份有限公司 | Piston blank and processing technology thereof |
| CN113182377B (en) * | 2021-05-10 | 2022-07-01 | 大昌汽车部件股份有限公司 | Piston blank and processing technology thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112112866A (en) | Electrified oil supplementing device for high-voltage circuit breaker | |
| CN201735262U (en) | Gas-liquid separator in tube body | |
| CN203201879U (en) | Pipeline ejector pump | |
| CN202040088U (en) | High-efficiency, energy-saving and leakage-free vertical self-sucking pump | |
| CN110496420B (en) | Continuous oil-water separation equipment | |
| CN203702620U (en) | Efficient energy-saving water filling deviceof centrifugal pump | |
| CN202673696U (en) | Middle-high concentration paper pulp centrifugal pump | |
| CN208742105U (en) | A kind of ore dressing dewatering operation three-level Separate System of Water-jet | |
| CN205532985U (en) | Hydraulic turbine water installations | |
| CN101975171B (en) | Water-pump piloting automatic vacuum suction device | |
| CN204000800U (en) | The energy-saving drainage system of bulb type generator set | |
| CN204996593U (en) | Reinforce miniature cyclone and adopt high -pressure separator of this separator | |
| CN108786283A (en) | A kind of ore dressing dewatering operation three-level Separate System of Water-jet | |
| CN207545916U (en) | Sand extraction device and sand and water separating system | |
| CN204900269U (en) | From steady current pump device of pressure boost | |
| CN110813002A (en) | Venturi cyclone dust collector | |
| CN205361671U (en) | Chats discharge device of whirl - static microbubble flotation column | |
| CN205241395U (en) | A tankage for oil -field brine is handled | |
| CN104120693B (en) | The energy-saving drainage system of a kind of bulb type generator set | |
| CN213270290U (en) | Zero-loss oil core oil return structure of air compressor | |
| CN102080667A (en) | Steam-water separator of efficient energy-saving seal-free automatic control self-sucking pump | |
| CN204508868U (en) | The molten formula air-flotation system of pump | |
| CN202001395U (en) | High-efficiency and energy-saving steam-water separator of seal-free self-control and self-sucked pump | |
| CN217437817U (en) | Vortex type water treatment device of air separation cooling system | |
| CN202962109U (en) | Aluminium heavy-duty wire drawing lubrication cooling liquid optimizing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201222 |
|
| RJ01 | Rejection of invention patent application after publication |