CN204114529U - Oil-based lubricating pump station - Google Patents
Oil-based lubricating pump station Download PDFInfo
- Publication number
- CN204114529U CN204114529U CN201420555381.5U CN201420555381U CN204114529U CN 204114529 U CN204114529 U CN 204114529U CN 201420555381 U CN201420555381 U CN 201420555381U CN 204114529 U CN204114529 U CN 204114529U
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- oil
- pressure
- hydraulic pump
- valve
- pump station
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Abstract
The utility model provides an oil base lubrication pump station, including ordinary pressure oil tank, hydraulic pump, bag formula energy storage ware, the import of oil base lubrication pump station, the export of oil base lubrication pump station, heat exchanger. The utility model can realize the pressure change and regulation from normal pressure to pressure and then to normal pressure by configuring the hydraulic pump and the pressure regulating valve; the bag type energy accumulator is configured to absorb the pressure pulsation of the outlet of the hydraulic pump so as to keep the pressure stable; by configuring the one-way valve, the bag type energy accumulator and the pressure regulating valve, the hydraulic control one-way valve can realize the pressure maintaining function under the power-off state of a motor of the hydraulic pump and under the abnormal state of no pressure at an outlet caused by the fault of the hydraulic pump; the oil return pipeline is provided with a heat exchanger which can cool the oil with raised temperature, so that the temperature is low when the oil is pumped by the hydraulic pump again after returning to the normal-pressure oil tank, and the long-term operation of the hydraulic pump is ensured.
Description
Technical field
The utility model belongs to the sealing auxiliary system field of mechanical seal structure, especially relates to a kind of oil base Lubricating pump station.
Background technique
Double-face mechanical sealing structure includes interior sealing, external sealed two sealing surfaces.The cavity that Seal cage is interior sealing, formed between external sealed and metal end; Liquid in this cavity is called sealing liquid.And Double End mechanical seal structure with pressure requires that the pressure of Seal cage must higher than the pressure of sealed medium.For the supplementary equipment that guarantee mechanical seal structure works under control environment and configure becomes sealing auxiliary system.
Generally for and meet above-mentioned requirements and can configure the auxiliary seal system of a sealing liquid tank for mechanical seal structure, i.e. a pressure volume pot, tank bottom is liquid, and top is nitrogen, and nitrogen provides the pressure being greater than sealed medium.Sealing liquid tank sealing auxiliary system can solve the problem of Seal cage pressure, but sealing liquid cannot circulate substantially, and when temperature height and rotating speed height, the temperature of sealing liquid tank can raise, and reduces lubricity; The fabricating cost of sealing liquid tank is higher, and pressure more high cost is higher, cost of increasing input.
Summary of the invention
The utility model provides a kind of oil base Lubricating pump station, be applicable to the sealing auxiliary system of Double End mechanical seal structure with pressure, with lubricant oil, mineral wet goods oils for lubricant medium, solve pressure, lubrication, the cooling problem of Double End mechanical seal structure with pressure, ensure mechanical seal structure long-term work under adapt circumstance.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of oil base Lubricating pump station, comprise normal pressure fuel tank, oil hydraulic pump, bladder type hydropneumatic accumulator, the import of oil base Lubricating pump station, oil base Lubricating pump station exports, heat exchanger, described oil hydraulic pump is connected with hydraulic pump motor, the import of described oil hydraulic pump is connected with described normal pressure fuel tank, described hydraulic pressure delivery side of pump is exported with described oil base Lubricating pump station by outlet valve block and is connected, the import of described oil base Lubricating pump station is connected by the import of scavenger valve block and described heat exchanger, the outlet of described heat exchanger is connected with described normal pressure fuel tank, the import of described oil base Lubricating pump station and described oil base Lubricating pump station are exported to be imported and exported by mechanical seal and are connected, described outlet valve block is provided with relief valve, one-way valve, stop valve, described hydraulic pressure delivery side of pump connects described stop valve through described one-way valve, the outlet of described stop valve connects described bladder type hydropneumatic accumulator, described relief valve is provided with between described oil hydraulic pump and described stop valve, described scavenger valve block comprises pressure regulator valve, Pilot operated check valve, and the import of described oil base Lubricating pump station connects described heat exchanger through described Pilot operated check valve, and described hydraulically-controlled one-way valve is connected with pressure gauge through described pressure regulator valve.
Described normal pressure fuel tank is connected with air-strainer.
Be provided with coarse-grain filtering device between described normal pressure fuel tank and described oil hydraulic pump, between described heat exchanger and described normal pressure fuel tank, be provided with fine filter.
Described normal pressure fuel tank is provided with level meter.
Be provided with lubricant medium in described normal pressure fuel tank, described lubricant medium is lubricant oil or mineral oil.
Utilize oil base Lubricating pump station to realize the suitable method of mechanical seal structure environment, comprise the following steps:
(1) oiling process: inject oil by described air-strainer in described normal pressure fuel tank;
(2) gas replenishment process: the nitrogen being filled with 70%-80% times of Seal cage pressure in bladder type hydropneumatic accumulator;
(3) pipeline connection procedure: the import and export of oil base Lubricating pump station are imported and exported with mechanical seal and is connected; The cooling water pipeline of described heat exchanger is connected;
(4) operate engineering: relief valve is adjusted to 1.1 times of Seal cage pressure, pressure regulator valve aperture is adjusted to maximum.Start hydraulic pump motor, progressively pressure regulator valve aperture is turned down, and observe manometric indicating value simultaneously, stop regulating modulating valve and locked adjusting nut after reaching Seal cage pressure;
(5) docking process: stop until sealed medium equipment and after decrease temperature and pressure after 30-45 minute, stop hydraulic pump motor, and release.
The beneficial effect that the utility model has: by configuration oil hydraulic pump and pressure regulator valve, can realize oil from normal pressure to having pressure again to pressure change and the adjustment of normal pressure; By the pressure pulsation of configuration bladder type hydropneumatic accumulator Absorbable rod hydraulic pump outlet, keep pressure stability; By configuration one-way valve, bladder type hydropneumatic accumulator, pressure regulator valve, Pilot operated check valve causes exporting the pressure holding function under stress-free abnormal state with Hydraulic pump fault under can realizing hydraulic pump motor off-position; Return line is configured with heat exchanger, and the oil that temperature raises can be cooled, when guaranteeing again to be sucked by oil hydraulic pump after normal pressure fuel tank got back to by oil, temperature is low, ensure the long-acting running of oil hydraulic pump, and heat exchanger is positioned at return line, do not need to configure high pressure heat exchanger, cost-saving; After heat exchanger and between normal pressure fuel tank, be configured with fine filter, in filterable oil, impurity can not can not be polluted again to the oil in normal pressure oil.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
In figure: 1. normal pressure fuel tank 2. coarse-grain filtering device 3. level meter 4. oil hydraulic pump 5. hydraulic pump motor 6. outlet valve block 7. relief valve 8. one-way valve 9. stop valve 10 bladder type hydropneumatic accumulator 11 pressure gauge 12. scavenger valve block 13. pressure regulator valve 14. Pilot operated check valve 15. heat exchanger 16. air-strainer 17. fine filter 18. liquid discharging valve
Embodiment
As shown in Figure 1, the utility model provides a kind of oil base lubrication station, comprise normal pressure fuel tank 1, oil hydraulic pump 4, bladder type hydropneumatic accumulator 10, the import of oil base Lubricating pump station, oil base Lubricating pump station exports, heat exchanger 15, air-strainer 16, normal pressure fuel tank 1 is connected with air-strainer 16, the import of oil hydraulic pump 4 is connected with normal pressure fuel tank 1, the outlet of oil hydraulic pump 4 to be exported with oil base Lubricating pump station by outlet valve block 6 and is connected, the import of oil base Lubricating pump station is connected by the import of scavenger valve block 12 and heat exchanger, the outlet of heat exchanger 15 is connected with normal pressure fuel tank 1, the import of oil base Lubricating pump station and oil base Lubricating pump station are exported to be imported and exported by mechanical seal and are connected, outlet valve block 6 is provided with relief valve 7, one-way valve 8, stop valve 9, the outlet of oil hydraulic pump 4 connects stop valve 9 through one-way valve 8, the outlet of stop valve 9 connects bladder type hydropneumatic accumulator 10, relief valve 7 is provided with between oil hydraulic pump 4 and stop valve 9, scavenger valve block 12 comprises pressure regulator valve 13, Pilot operated check valve 14, and the import of oil base Lubricating pump station connects heat exchanger 15 through Pilot operated check valve 14, and hydraulically-controlled one-way valve 14 is connected with pressure gauge 11 through pressure regulator valve 13, normal pressure fuel tank side is provided with liquid discharging valve 18.
Further, between normal pressure fuel tank 1 and oil hydraulic pump 4, be provided with coarse-grain filtering device 2, between heat exchanger 15 and normal pressure fuel tank 1, be provided with fine filter 17.
Further, normal pressure fuel tank 1 is provided with level meter 3.
Further, be provided with lubricant medium in normal pressure fuel tank 1, lubricant medium is lubricant oil or mineral oil.
Further, oil hydraulic pump 4 is connected with hydraulic pump motor 5.
The utility model provides one to be applicable to lubricant oil, mineral oil for lubricant medium, for Double End mechanical seal structure with pressure provides the oil base Lubricating pump station of lubrication and cooling.The open type forced circulation system that it comprises normal pressure fuel tank 1, oil hydraulic pump 4, hydraulic pump motor 5, one-way valve 8, bladder type hydropneumatic accumulator 10, pressure gauge 11, pressure regulator valve 13, Pilot operated check valve 14, heat exchanger 17, fine filter 18 form for core component.
By configuration oil hydraulic pump 4 and pressure regulator valve 13, oil can be realized and change to the pressure of normal pressure from normal pressure again to there being pressure and regulating.Oil in normal pressure fuel tank 1 is sucked by oil hydraulic pump 4 and gets rid of from outlet, the aperture of pressure regulator valve 13 is regulated to set up load, in the space that oil hydraulic pump 4 exports between pressure regulator valve 13, set up pressure, oil gets back to normal pressure fuel tank 1 after the pipeline and parts of pressure regulator valve 13 outlet downstream, and pressure reduces to normal pressure.Both ensure that the pressure of the Seal cage of the Double End mechanical seal structure with pressure be installed between oil hydraulic pump 4 and pressure regulator valve 13 on pipeline was higher than sealed medium pressure, again without the need to configuring pressurized container for oil in reserve.Pressure regulation spectrum is large, cost-saving.
By the pressure pulsation that configuration bladder type hydropneumatic accumulator 10 Absorbable rod oil hydraulic pump 4 exports, keep pressure stability.
By configuration one-way valve 8, bladder type hydropneumatic accumulator 10, pressure regulator valve 13, Pilot operated check valve 14 causes exporting the pressure holding function under stress-free abnormal state with oil hydraulic pump 4 fault under can realizing hydraulic pump motor 5 off-position.The nitrogen of preliminary filling 75% times of Seal cage pressure in the capsule of bladder type hydropneumatic accumulator 10, when regulating pressure regulator valve to normal Seal cage pressure, stores the oil of 25% volume in bladder type hydropneumatic accumulator 10 housing.Under oil hydraulic pump 4 exports pressure-less state, Pilot operated check valve 14 can be closed, and the oil between one-way valve 8 and Pilot operated check valve 14 cannot get back to normal pressure fuel tank 1; The oil simultaneously stored in bladder type hydropneumatic accumulator 10 can add in Seal cage, guarantees that Seal cage pressure can not be down to normal pressure fast.This function can greatly improve mechanical seal structure using effect and reduce equipment reveal probability.
Return line is configured with heat exchanger 17, and the oil that temperature raises can be cooled, when guaranteeing again to be sucked by oil hydraulic pump 4 after normal pressure fuel tank 1 got back to by oil, temperature is low, ensures the long-acting running of oil hydraulic pump 4.And heat exchanger 17 is positioned at return line, do not need to configure high pressure heat exchanger, cost-saving.
After heat exchanger 17 and between normal pressure fuel tank 1, be configured with fine filter 18, in filterable oil, impurity can not can not be polluted again to the oil in normal pressure fuel tank 1.
As shown in Figure 1, a kind of oil base Lubricating pump station and utilize it to realize the suitable method of mechanical seal structure environment, step is as follows:
Oiling process: inject oil by air-strainer 16 in normal pressure fuel tank 1, and observe level meter 3 to by reaching normal level position;
Gas replenishment process: the nitrogen being filled with 75% times of Seal cage pressure in bladder type hydropneumatic accumulator 10;
Pipeline connection procedure: the import and export of oil base Lubricating pump station to be imported and exported with mechanical seal with seamless steel pipe or flexible pipe and is connected; The cooling water pipeline of heat exchanger 15 connects;
Running engineering: relief valve 7 is adjusted to 1.1 times of Seal cage pressure, pressure regulator valve 13 aperture is adjusted to maximum, all the other valve wide opens except normal closed gate in accompanying drawing.Start hydraulic pump motor 5, progressively pressure regulator valve 13 aperture is turned down, and observe the indicating value of pressure gauge 11 simultaneously, stop regulating modulating valve 13 and locked adjusting nut after reaching Seal cage pressure;
Docking process: stop until sealed medium equipment and after decrease temperature and pressure after 30 minutes, stop hydraulic pump motor 5, and release.
By pipeline, mechanical seal structure with pressure to Lubricating pump station and Double End is connected, after starting hydraulic pump motor, oil sucks by oil hydraulic pump from fuel tank, being transported in the Seal cage of double-face mechanical sealing structure, ensureing that Seal cage pressure is higher than sealed medium more than pressure 0.2MPa by regulating pressure regulator valve.Can store the oil of 25% volume in accumulator, during normal work, accumulator can the pressure pulsation of absorption pump outlet, keeps Seal cage pressure stability; Simultaneously under abnormal state, as off-position or oil hydraulic pump cannot working staties, oil can be closed in space between the two by one-way valve and Pilot operated check valve, relies on the oil subsidy be stored in accumulator to fill guarantee Seal cage pressure higher than sealed medium pressure.Return line is configured with heat exchanger and filter, the oil of heat can be cooled, impure oil filters clean.
The utility model can provide following guarantee for Double End mechanical seal structure with pressure: in normal and abnormal state lower seal chamber, oil pressure is higher than more than sealed medium 0.2MPa; Oil in normal state lower seal chamber is pump circulation; Input Seal cage oil be through filter and cooling, be cooled clean liquid, thus ensure mechanical seal structure work under adapt circumstance, improve sealing effect, extend sealing life.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (5)
1. an oil base Lubricating pump station, comprise normal pressure fuel tank, oil hydraulic pump, bladder type hydropneumatic accumulator, the import of oil base Lubricating pump station, oil base Lubricating pump station exports, heat exchanger, described oil hydraulic pump is connected with hydraulic pump motor, it is characterized in that: the import of described oil hydraulic pump is connected with described normal pressure fuel tank, described hydraulic pressure delivery side of pump is exported with described oil base Lubricating pump station by outlet valve block and is connected, the import of described oil base Lubricating pump station is connected by the import of scavenger valve block and described heat exchanger, the outlet of described heat exchanger is connected with described normal pressure fuel tank, the import of described oil base Lubricating pump station and described oil base Lubricating pump station are exported to be imported and exported by mechanical seal and are connected, described outlet valve block is provided with relief valve, one-way valve, stop valve, described hydraulic pressure delivery side of pump connects described stop valve through described one-way valve, the outlet of described stop valve connects described bladder type hydropneumatic accumulator, described relief valve is provided with between described oil hydraulic pump and described stop valve, described scavenger valve block comprises pressure regulator valve, Pilot operated check valve, and the import of described oil base Lubricating pump station connects described heat exchanger through described Pilot operated check valve, and described hydraulically-controlled one-way valve is connected with pressure gauge through described pressure regulator valve.
2. oil base Lubricating pump station according to claim 1, is characterized in that: described normal pressure fuel tank is connected with air-strainer.
3. oil base Lubricating pump station according to claim 2, is characterized in that: be provided with coarse-grain filtering device between described normal pressure fuel tank and described oil hydraulic pump, is provided with fine filter between described heat exchanger and described normal pressure fuel tank.
4. oil base Lubricating pump station according to claim 3, is characterized in that: described normal pressure fuel tank is provided with level meter.
5. oil base Lubricating pump station according to claim 4, is characterized in that: be provided with lubricant medium in described normal pressure fuel tank, and described lubricant medium is lubricant oil or mineral oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555381.5U CN204114529U (en) | 2014-09-25 | 2014-09-25 | Oil-based lubricating pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555381.5U CN204114529U (en) | 2014-09-25 | 2014-09-25 | Oil-based lubricating pump station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204114529U true CN204114529U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420555381.5U Expired - Fee Related CN204114529U (en) | 2014-09-25 | 2014-09-25 | Oil-based lubricating pump station |
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| Country | Link |
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| CN (1) | CN204114529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315323A (en) * | 2014-09-25 | 2015-01-28 | 天津西澳维密封技术发展有限公司 | Oil-based lubricating pump station and method for realizing environment suitability of mechanical sealing structure by using same |
-
2014
- 2014-09-25 CN CN201420555381.5U patent/CN204114529U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315323A (en) * | 2014-09-25 | 2015-01-28 | 天津西澳维密封技术发展有限公司 | Oil-based lubricating pump station and method for realizing environment suitability of mechanical sealing structure by using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20160925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |