CN221347272U - Sealing oil vacuum pump group - Google Patents
Sealing oil vacuum pump group Download PDFInfo
- Publication number
- CN221347272U CN221347272U CN202322647061.4U CN202322647061U CN221347272U CN 221347272 U CN221347272 U CN 221347272U CN 202322647061 U CN202322647061 U CN 202322647061U CN 221347272 U CN221347272 U CN 221347272U
- Authority
- CN
- China
- Prior art keywords
- oil
- vacuum pump
- pump
- rotary vane
- pressure sensor
- 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.)
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Links
- 238000007789 sealing Methods 0.000 title description 8
- 238000000926 separation method Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 23
- 239000007788 liquid Substances 0.000 description 9
- 230000001050 lubricating effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a sealed oil vacuum pump group, which comprises an oil tank, an oil-gas separation device and an oil drum, wherein the oil tank is communicated with the oil-gas separation device through a pump group, the oil drum is used for collecting oil separated by the oil-gas separation device, the oil tank is communicated with the oil-gas separation device through a rotary vane vacuum pump, a pressure sensor is arranged in a pipeline for communicating the oil tank with the rotary vane vacuum pump, data of the pressure sensor are transmitted to a controller, the controller controls the operation of the rotary vane vacuum pump through data transmitted by the pressure sensor, an oil outlet end of the oil-gas separation device is provided with a branch pipe, and the branch pipe is communicated with the pipeline between the pressure sensor and the rotary vane vacuum pump through an oil pump. According to the sealed oil vacuum pump set, the original Roots pump and the water ring vacuum pump are replaced by the rotary vane vacuum pump, enough vacuum pressure can be provided, the controller and the pressure sensor are matched for more convenient control, and the starting system is optimized.
Description
Technical Field
The utility model relates to a sealing oil vacuum pump set for a vacuum oil tank.
Background
The existing turbine unit sealing oil vacuum system adopts three pump sets, two pump sets are connected in parallel and can be mutually standby, one water ring vacuum pump is connected with the pump sets in series, because the vacuum pressure provided by the pump sets is insufficient, the water ring vacuum pump is used for sequentially starting the pump sets 1 and 2 because the pump sets are subjected to screw compression, heat is easy to generate due to friction between structures, the pump sets are frequently subjected to high-temperature influence, meanwhile, the pump sets need to be frequently overhauled, copper pipes which are required to dissipate heat of the pump sets are required to be dismantled during overhauling, the pump sets are easy to damage, the starting procedure of the water ring vacuum pump and the pump sets is strict, 1. The inlet manual door of the vacuum pumping device is closed, 2. The pressure of the water ring vacuum pump is adjusted to be 0.2Mpa after the closed water supply manual door is adjusted, 3 Mpa, after the pump sets are checked to be normal, the inlet pressure of the pump sets is adjusted to be 0.1Mpa,4 # Roots pumps are sequentially started, 5. The inlet pressure of the two sealing oil vacuum pumps are checked to be smaller than-0.08 Mpa, the inlet manual door of the vacuum pumping device is slowly opened, vacuum is built, the starting process is complicated, and when the system cannot be restored, and the system is reduced, and the potential safety hazard of the new sealing oil pump set is required to be optimized.
Disclosure of utility model
The present utility model is directed to a sealing oil vacuum pump set to solve the above-mentioned problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a sealed oil vacuum pump group, includes oil tank, oil-gas separation device and oil drum, and the oil tank passes through pump package and oil-gas separation device intercommunication, and the oil drum is used for collecting the fluid that oil-gas separation device separated, the oil tank is linked together with oil-gas separation device through the rotary vane vacuum pump, installs pressure sensor in the pipeline that oil tank and rotary vane vacuum pump communicate, and pressure sensor's data transmission gives the controller, and the controller passes through the operation of pressure sensor transmission's data control rotary vane vacuum pump.
As still further aspects of the utility model: the oil outlet end of the oil-gas separation device is provided with a branch pipe, and the branch pipe is communicated with a pipeline between the pressure sensor and the rotary vane vacuum pump through an oil pump.
As still further aspects of the utility model: and a water pool for cooling the oil liquid is arranged on the branch pipe between the oil-gas separation device and the oil pump.
As still further aspects of the utility model: a first control valve is arranged between the branch pipe and the oil drum.
As still further aspects of the utility model: the oil pump transmits oil through the dropping liquid pipe extending to the inside of the pipeline between the pressure sensor and the rotary vane vacuum pump, and the oil is transmitted into the pipeline drop by controlling the transmission efficiency of the oil pump.
As still further aspects of the utility model: and a second control valve is arranged between the pressure sensor and the oil tank.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the sealed oil vacuum pump set, the rotary vane vacuum pump is adopted to replace the original Roots pump and the water ring vacuum pump, the controller and the pressure sensor are matched to control conveniently while enough vacuum pressure can be provided, and the starting system is optimized.
2. According to the sealed oil vacuum pump set, oil is formed by collecting oil gas, the oil is circulated to be used for lubricating and cooling the rotary vane vacuum pump, the water tank is matched for further cooling, the loss of the rotary vane vacuum pump is reduced, and the service life of the rotary vane vacuum pump is prolonged.
Drawings
FIG. 1 is a schematic diagram of a seal oil vacuum pump set;
Fig. 2 is a prior art schematic diagram of a sealed oil vacuum pump assembly.
In the figure: 1. an oil tank; 2. a rotary vane vacuum pump; 3. an oil-gas separation device; 4. a first control valve; 5. an oil drum; 6. a second control valve; 8. A pool; 9. an oil pump; 10. a drip tube; 11. a pressure sensor; 12. a controller; 13. roots pump; 14. a water ring vacuum pump.
Detailed Description
Referring to fig. 1-2, in an embodiment of the present utility model, a sealed oil vacuum pump set includes an oil tank 1, an oil-gas separation device 3 and an oil tank 5, where the oil tank 1 is communicated with the oil-gas separation device 3 through a pump set, the oil tank 5 is used to collect oil separated by the oil-gas separation device 3, the oil tank 1 is communicated with the oil-gas separation device 3 through a rotary vane vacuum pump 2, a pressure sensor 11 is installed in a pipeline where the oil tank 1 is communicated with the rotary vane vacuum pump 2, data of the pressure sensor 11 is transmitted to a controller 12, the controller 12 controls operation of the rotary vane vacuum pump 2 through data transmitted by the pressure sensor 11, the controller 12 is in the prior art, and the controller refers to a master command device that changes wiring of a main circuit or a control circuit according to a predetermined sequence and changes resistance values in the circuit to control starting, speed regulation, braking and reversing of a motor, and can control operation of the rotary vane vacuum pump 2 through data transmitted by the pressure sensor 11, and when pressure is satisfied, the rotary vane vacuum pump 2 performs a low power or a standby state, and reduces energy consumption.
The working principle of the utility model is as follows: the existing turbine unit sealing oil vacuum system adopts three pump sets, two Roots pumps 13 which are connected in parallel and can be mutually standby, a water ring vacuum pump 14 which is connected with the Roots pumps in series, and a rotary vane vacuum pump 2 which is technically changed into a rotary vane vacuum pump 2 to operate, wherein the rotary vane vacuum pump 2 is sufficient for meeting vacuum pressure, hydrogen in oil is sufficiently pumped out, the Roots pump 13 and the water ring vacuum pump 14 are not required to be matched for use, and the pressure sensor 11 is matched with a single controller 12, so that the operation of the rotary vane vacuum pump 2 can be controlled through pressure, the inside of the oil tank 1 is always kept in a specified air pressure value range, and compared with the prior art, the control and fault rate are greatly reduced.
Referring to fig. 1-2, the embodiment of the present utility model further includes that the oil outlet end of the oil-gas separation device 3 is provided with a branch pipe, the branch pipe is communicated with a pipeline between the pressure sensor 11 and the rotary vane vacuum pump 2 through an oil pump 9, the oil pump 9 is a metering oil pump, and a certain amount of oil can be pumped from the inside of the oil-gas separation device 3 for lubrication and cooling according to requirements.
In a preferred embodiment: a water tank 8 for cooling oil liquid is arranged on a branch pipe between the oil-gas separation device 3 and the oil pump 9, cooling water is filled in the water tank 8, and a section of the branch pipe passing through the water tank 8 is a copper coil pipe, so that the heat exchange capacity of the branch pipe is improved.
In a preferred embodiment: a first control valve 4 is arranged between the branch pipe and the oil drum 5, and the first control valve 4 ensures that enough oil liquid supply circulation exists in the oil-gas separation device 3, and simultaneously prevents gas phase from being intervened in the oil drum 5 and the oil pump 9.
In a preferred embodiment: the oil pump 9 transmits oil through a drip pipe 10 extending to the inside of the pipeline between the pressure sensor 11 and the rotary vane vacuum pump 2, and the oil is transmitted into the pipeline drop by controlling the transmission efficiency of the oil pump 9.
In a preferred embodiment: a second control valve 6 is installed between the pressure sensor 11 and the oil tank 1, and the second control valve 6 can be an electromagnetic valve, and can be automatically closed in emergency or maintenance.
The working principle of the utility model is as follows: the gas phase in the oil liquid is separated in vacuum, but part of the oil liquid can enter the pipeline along with the gas phase, and the part of the oil gas plays a certain lubricating role when entering the inside of the rotary vane vacuum pump 2, and simultaneously, the heat generated by friction during the operation of the inside of the rotary vane vacuum pump 2 is taken away, but the oil gas in the gas phase is far insufficient, so that the oil outlet end of the subsequent oil-gas separation device 3 is connected with a pipeline driven to circulate by the oil pump 9, the oil pump 9 drives the oil liquid into the front end of the rotary vane vacuum pump 2, and the oil liquid is added into the inside of the rotary vane vacuum pump 2 along with the air flow of negative pressure, so that the lubricating role is played for the oil liquid, the heat inside the rotary vane vacuum pump 2 can be taken away, the water tank 8 is matched for further cooling, the loss of the rotary vane vacuum pump 2 is reduced, and the service life of the rotary vane vacuum pump 2 is prolonged.
It should be noted that, the foregoing embodiments all belong to the same inventive concept, and the descriptions of the embodiments have emphasis, and where the descriptions of the individual embodiments are not exhaustive, reference may be made to the descriptions of the other embodiments.
The foregoing examples merely illustrate embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (6)
1. The utility model provides a sealed oil vacuum pump group, includes oil tank (1), oil-gas separation device (3) and oil drum (5), and oil tank (1) are through pump package and oil-gas separation device (3) intercommunication, and oil drum (5) are used for collecting the fluid that oil-gas separation device (3) separated, a serial communication port, oil tank (1) are linked together with oil-gas separation device (3) through rotary vane vacuum pump (2), install pressure sensor (11) in the pipeline of oil tank (1) and rotary vane vacuum pump (2) intercommunication, and the data transmission of pressure sensor (11) gives controller (12), and the operation of rotary vane vacuum pump (2) is controlled through the data of pressure sensor (11) transmission to controller (12).
2. The sealed oil vacuum pump set according to claim 1, wherein the oil outlet end of the oil-gas separation device (3) is provided with a branch pipe, and the branch pipe is communicated with a pipeline between the pressure sensor (11) and the rotary vane vacuum pump (2) through an oil pump (9).
3. A sealed oil vacuum pump assembly according to claim 2, characterized in that a water tank (8) for cooling the oil is mounted on the branch pipe between the oil-gas separation device (3) and the oil pump (9).
4. A sealed oil vacuum pump set according to claim 3, characterized in that a first control valve (4) is mounted between the branch pipe and the oil drum (5).
5. A sealed oil vacuum pump set according to claim 2, characterized in that the oil pump (9) transfers oil through a drip tube (10) extending into the interior of the pipe between the pressure sensor (11) and the rotary vane vacuum pump (2), and the transfer efficiency of the oil pump (9) is controlled to transfer oil into the pipe drop by drop.
6. A sealed oil vacuum pump assembly according to any of claims 1-5, characterized in that a second control valve (6) is mounted between the pressure sensor (11) and the oil tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322647061.4U CN221347272U (en) | 2023-09-28 | 2023-09-28 | Sealing oil vacuum pump group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322647061.4U CN221347272U (en) | 2023-09-28 | 2023-09-28 | Sealing oil vacuum pump group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221347272U true CN221347272U (en) | 2024-07-16 |
Family
ID=91843624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322647061.4U Active CN221347272U (en) | 2023-09-28 | 2023-09-28 | Sealing oil vacuum pump group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221347272U (en) |
-
2023
- 2023-09-28 CN CN202322647061.4U patent/CN221347272U/en active Active
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