CN200989337Y - Pressure oil tank - Google Patents
Pressure oil tank Download PDFInfo
- Publication number
- CN200989337Y CN200989337Y CN 200620141322 CN200620141322U CN200989337Y CN 200989337 Y CN200989337 Y CN 200989337Y CN 200620141322 CN200620141322 CN 200620141322 CN 200620141322 U CN200620141322 U CN 200620141322U CN 200989337 Y CN200989337 Y CN 200989337Y
- Authority
- CN
- China
- Prior art keywords
- oil tank
- pressure oil
- switch valve
- pressure
- inert gas
- 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.)
- Expired - Lifetime
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- 239000011261 inert gas Substances 0.000 claims abstract description 35
- 239000012530 fluid Substances 0.000 claims description 29
- 238000005086 pumping Methods 0.000 claims description 12
- 239000002828 fuel tank Substances 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 88
- 239000010720 hydraulic oil Substances 0.000 abstract description 13
- 239000007789 gas Substances 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model discloses a pressure oil tank. An inert gas aerating ring is arranged under the pressure oil tank and connected with an inert gas source. The vacuum extractor is connected with the top of the pressure oil tank by a vacuum pump through a first switch valve and a second switch valve. An alternating pressure exerting device is composed of an airbag, a vacuum pump, the first switch valve, a third switch valve, a fourth switch valve and an air packed bed filter. The vacuum pump is connected with the airbag positioned in the pressure oil tank through the first switch valve and the third switch valve. The air packed bed filter is connected with the airbag positioned in the pressure oil tank through the third switch valve and the fourth switch valve. The underside of the pressure oil tank is provided with an oil hole connected with a hydraulic pump. The utility model can effectively remove the gas in the hydraulic oil; the inert gas aerating ring is used to quicken the expelling speed of the air bubbles absorbed on the pressure oil tank walls; The alternating pressure exerting device can remove the micro air bubbles in the hydraulic oil; when the hydraulic pump is at work, the pressure of the pressure oil tank is adapted to the atmospheric pressure so as to prevent the pump from empty-suction.
Description
Technical field
The utility model relates to the fuel tank of hydraulic system, specifically relates to a kind of pressure oil tank.
Background technique
Under the normal temperature and pressure, sneak in the hydraulic oil liquid and the air quantity of dissolving is about 10%.Be dissolved with the fluid of air, its Young's modulus descends significantly, has weakened the rigidity of hydraulic system.In elements such as hydrovalve and oil hydraulic pump, owing to reasons such as low pressure and strong shearings, the dissolved gas in the fluid is separated out the generation air pocket, causes the hydraulic element cavitation erosion, and produces noise.The existence of air pocket also makes the flow characteristic of fluid become complicated.
In order to reduce the air content of hydraulic oil liquid, can vacuumize processing to hydraulic oil container, the dissolved gas in the hydraulic oil liquid is separated out.But this method can not make some small bubbles separate out.In addition, after fuel tank vacuumized, the inlet pressure of oil hydraulic pump was lower than the minimum inlet pressure that pump allows, and it is empty to cause oil hydraulic pump to inhale.
Summary of the invention
The purpose of this utility model provides a kind of pressure oil tank, can remove the bubble in the hydraulic oil liquid, can prevent that again the oil hydraulic pump suction is empty.
The technological scheme that its technical problem that solves the utility model adopts is:
Scheme 1:
Comprise pressure oil tank, vacuum pumping device, alternating pressure bringing device and above be evenly equipped with exhaust hole inert gas charge into ring; Inert gas charges into the bottom that ring is installed in pressure oil tank, is connected with inert gas source; Vacuum pumping device is linked to each other with the pressure oil tank top with the second switch valve through first switch valve by vacuum pump; The alternating pressure bringing device is made up of air bag, vacuum pump, first switch valve, the 3rd switch valve, the 4th switch valve and air-strainer, vacuum pump links to each other with air bag in being installed in pressure oil tank by first switch valve and the 3rd switch valve, and air-strainer links to each other with air bag in being installed in pressure oil tank by the 4th switch valve and the 3rd switch valve; The bottom of pressure oil tank has the hydraulic fluid port that is connected with oil hydraulic pump.
Scheme 2:
Comprise pressure oil tank, vacuum pumping device, alternating pressure bringing device and above be evenly equipped with exhaust hole inert gas charge into ring; Inert gas charges into the bottom that ring is installed in pressure oil tank, is connected with inert gas source; Vacuum pumping device is linked to each other with the fuel tank top with the second switch valve through first switch valve by vacuum pump, and air-strainer links to each other with the pressure oil tank top with the second switch valve through the 4th switch valve; The alternating pressure bringing device is single rod piston cylinder, and the rodless cavity of single rod piston cylinder links to each other with fluid in the pressure oil tank, and the rod chamber pore of piston cylinder links to each other with atmosphere or links to each other with vacuum pump with first switch valve through the 3rd switch valve; The bottom of pressure oil tank has the hydraulic fluid port that is connected with oil hydraulic pump.
More than the switch valve described in two kinds of schemes be stop valve or electromagnetism two logical switch valves.
The beneficial effect that the utlity model has is: can effectively remove the gas in the hydraulic oil liquid; Owing to adopted inert gas to charge into ring, the bubble of having accelerated to be adsorbed on the pressure oil tank wall is got rid of speed; The alternating pressure bringing device can effectively be got rid of the micro-bubble in the hydraulic oil liquid; During hydraulic pump works, pressure and external atmosphere pressure in the pressure oil tank adapt, and prevent that effectively the oil hydraulic pump suction is empty.
Description of drawings
Fig. 1 is the pressure oil tank structural drawing of the air bag among first embodiment when shrinking;
Fig. 2 is that inert gas charges into ring;
Pressure oil tank structural drawing when Fig. 3 is a airbag inflation among first embodiment;
Pressure oil tank structural drawing when Fig. 4 is second airbag inflation among the embodiment;
Fig. 5 is the pressure oil tank structural drawing of the 3rd the employing electromagnetism two logical switch valves among the embodiment;
Fig. 6 is the pressure oil tank structural drawing of the 4th the employing piston cylinder among the embodiment;
Fig. 7 is the pressure oil tank structural drawing of the 5th the employing piston cylinder among the embodiment;
Among the figure: 1. leg seat, 2. inert gas source, 3. inert gas charges into ring, 4. pressure oil tank, 5,5 '. air bag, 6,7,11,12. stop valve, 8. air-strainer, 9. ventilating hole, 10. vacuum pump, 13. manholes, 14. oil hydraulic pump, 15,16,17,18. electromagnetism, two logical switch valves, 19. rodless cavities, 20. piston, 21. single rod piston cylinders, 22. rod chambers, 23. pore, 24. handles, 25. relief openings.
Embodiment
The utility model is described in further detail by drawings and Examples.
First embodiment of the present utility model such as Fig. 1, Fig. 2, shown in Figure 3, the utility model comprise pressure oil tank 4, vacuum pumping device, alternating pressure bringing device and above be evenly equipped with exhaust hole inert gas charge into ring 3; Inert gas charges into the bottom that ring 3 is installed in pressure oil tank 4, is connected with inert gas source 2; Vacuum pumping device is linked to each other with pressure oil tank 4 tops with second stop valve 6 through first stop valve 11 by vacuum pump 10; The alternating pressure bringing device is made up of air bag 5, vacuum pump 10, first stop valve 11, the 3rd stop valve 12, the 4th stop valve 7 and air-strainer 8, vacuum pump 10 links to each other with the air bag 5 that is installed in pressure oil tank 4 tops with the 3rd stop valve 12 by first stop valve 11, and air-strainer 8 links to each other with the air bag 5 that is installed in pressure oil tank 4 tops with the 3rd stop valve 3 by the 4th stop valve 7; The bottom of pressure oil tank 4 has the hydraulic fluid port that is connected with oil hydraulic pump 14.
As shown in Figure 1, pressure oil tank 4 is supported by leg seat 1, and manhole 13 is used for the maintenance of pressure oil tank 4; During original state, stop valve 6 and stop valve 7 opened, and pressure oil tank 4 communicates with atmosphere by air-strainer 8, closes stop valve 11 and stop valve 12 after air bag 5 vacuumizes, the volume of the spatial volume above the oil level in the fuel tank after less than air bag 5 complete expansions; Close stop valve 7, open stop valve 11, opening 10 pairs of pressure oil tanks of vacuum pump vacuumizes, gas in the hydraulic oil liquid is separated out under negative pressure, charge in the ring 3 to inert gas simultaneously and charge into small amounts of inert gas continuously at inert gas source 2 places, inert gas enters fluid by exhaust port 25, strengthens the bubble at fuel tank wall place and gets rid of speed; Close inert gas source 2, when the variation in pressure in the pressure oil tank 4 is very little, close stop valve 6 and stop valve 11, open stop valve 7 and stop valve 12, air bag 5 is inflation under atmospheric effect, be full of whole pressure oil tank 4 until fluid, as shown in Figure 3, the oil liquid pressure in the pressure oil tank 4 equals external atmospheric pressure at this moment; Close stop valve 7, open stop valve 11, air bag 5 is vacuumized, air bag 5 shrinks under the effect of power such as fluid buoyancy, oil liquid pressure is reduced to vacuum pressure, alternately open stop valve 7 and stop valve 11 so repeatedly, the pressure of pressure oil tank 4 inner fluids alternate repeatedly between barometric pressure and vacuum pressure is separated out the micro-bubble in the fluid; Close stop valve 12 after air bag 5 vacuumizes, open stop valve 6 and stop valve 11, vacuum pump 10 cuts out stop valve 6, stop valve 11 and vacuum pump after the gas of separating out is extracted out, finishes the eliminating of gas in the hydraulic oil; Open stop valve 7 and stop valve 12, air bag 5 expands, and the oil liquid pressure in the pressure oil tank 4 reverts to atmospheric pressure, and opening oil hydraulic pump 14 is the oil hydraulic circuit fuel feeding.After hydraulic work system finishes, open stop valve 6, the fluid in the pressure oil tank 4 communicates with ventilating hole 9 by air-strainer 8.
Second embodiment of the present utility model as shown in Figure 4, air bag 5 ' is installed in the bottom of pressure oil tank, when the fluid in the pressure oil tank 4 being applied alternating pressure by air bag 5 ', fluid in the pressure oil tank 4 produces moving up and down by a relatively large margin, play the effect of stirring fluid, improved the removal effect of gas in the fluid.
The 3rd embodiment of the present utility model as shown in Figure 5, switch valve all adopts the logical switch valves 15,16,17 and 18 of electromagnetism two, during the logical switch valve no electric circuit of electromagnetism two, valve cuts out, during the logical switch valves energising of electromagnetism two, opening of valves has been realized the automatically controlled of alternating pressure.
The 4th embodiment of the present utility model as shown in Figure 6, comprise pressure oil tank 4, vacuum pumping device, alternating pressure bringing device and above be evenly equipped with exhaust hole inert gas charge into ring 3; Inert gas charges into the bottom that ring 3 is installed in pressure oil tank 4, is connected with inert gas source 2; Vacuum pumping device is linked to each other with pressure oil tank 4 tops with second stop valve 6 through first stop valve 11 by vacuum pump, and air-strainer 8 links to each other with the pressure oil tank top with second stop valve 6 through the 4th stop valve 7; The alternating pressure bringing device is single rod piston cylinder 21, and the rodless cavity 19 of single rod piston cylinder 21 links to each other with fluid in the pressure oil tank 4, and the pore 23 of the rod chamber 22 of piston cylinder 21 links to each other with atmosphere; Design has handle 24 on the piston 20 of piston cylinder 21; The bottom of pressure oil tank 4 has the hydraulic fluid port that is connected with oil hydraulic pump 14.
As shown in Figure 6, pressure oil tank 4 is supported by leg seat 1, and manhole 13 is used for the maintenance of pressure oil tank 4; During original state, stop valve 6 and stop valve 7 are opened, and pressure oil tank 4 communicates with atmosphere by air-strainer 8, and piston 20 is pulled out the position of back locking handle 24 fully; Close stop valve 7, open stop valve 11, opening 10 pairs of pressure oil tanks of vacuum pump vacuumizes, gas in the hydraulic oil liquid is separated out under negative pressure, charge in the ring 3 to inert gas simultaneously and charge into small amounts of inert gas continuously at inert gas source 2 places, inert gas enters fluid by exhaust port 25, strengthens the bubble at fuel tank wall place and gets rid of speed; Close inert gas source 2, when the variation in pressure in the pressure oil tank 4 is very little, close stop valve 6 and stop valve 11, remove the locking of handle 24, piston 20 pushes pressure oil tank 4 with the fluid in the piston cylinder 21 under the thrust of barometric pressure and handle 24, be full of whole pressure oil tank 4 until fluid, the oil liquid pressure in the pressure oil tank 4 equals external atmospheric pressure at this moment; The push-and-pull piston 20 repeatedly, and the pressure of pressure oil tank 4 inner fluids alternate repeatedly between barometric pressure and vacuum pressure is separated out the micro-bubble in the fluid; Piston 20 is pulled out the position of back locking handle 24, opens stop valve 6 and stop valve 11, and vacuum pump 10 cuts out stop valve 6, stop valve 11 and vacuum pump after the gas of separating out is extracted out, finishes the eliminating of gas in the hydraulic oil; Remove the locking of handle 24, the oil liquid pressure in the pressure oil tank 4 reverts to atmospheric pressure, and opening oil hydraulic pump 14 is the oil hydraulic circuit fuel feeding.After hydraulic work system finishes, open stop valve 6 and stop valve 7, the fluid in the pressure oil tank 4 communicates with ventilating hole 9 by air-strainer 8.
The 5th embodiment of the present utility model as shown in Figure 7, the rodless cavity of piston cylinder 21 links to each other with vacuum pump 10 with first stop valve 11 through the 3rd stop valve 12; To stop valve 6,7,11,12 take with first embodiment in identical control sequence, the push-pull effort that 24 need of the handle of piston 20 are very little or do not need push-pull effort to apply alternating pressure to fluid.
Above-mentioned embodiment is used for the utility model of explaining; rather than the utility model limited; in the protection domain of spirit of the present utility model and claim, any modification and change to the utility model is made all fall into protection domain of the present utility model.
Claims (4)
1. a pressure oil tank is characterized in that, comprise pressure oil tank, vacuum pumping device, alternating pressure bringing device and above be evenly equipped with exhaust hole inert gas charge into ring; Inert gas charges into the bottom that ring is installed in pressure oil tank, is connected with inert gas source; Vacuum pumping device is linked to each other with the pressure oil tank top with the second switch valve through first switch valve by vacuum pump; The alternating pressure bringing device is made up of air bag, vacuum pump, first switch valve, the 3rd switch valve, the 4th switch valve and air-strainer, vacuum pump links to each other with air bag in being installed in pressure oil tank by first switch valve and the 3rd switch valve, and air-strainer links to each other with air bag in being installed in pressure oil tank by the 4th switch valve and the 3rd switch valve; The bottom of pressure oil tank has the hydraulic fluid port that is connected with oil hydraulic pump.
2. a kind of pressure oil tank according to claim 1 is characterized in that, described switch valve is stop valve or electromagnetism two logical switch valves.
3. a pressure oil tank is characterized in that, comprise pressure oil tank, vacuum pumping device, alternating pressure bringing device and above be evenly equipped with exhaust hole inert gas charge into ring; Inert gas charges into the bottom that ring is installed in pressure oil tank, is connected with inert gas source; Vacuum pumping device is linked to each other with the fuel tank top with the second switch valve through first switch valve by vacuum pump, and air-strainer links to each other with the pressure oil tank top with the second switch valve through the 4th switch valve; The alternating pressure bringing device is single rod piston cylinder, and the rodless cavity of single rod piston cylinder links to each other with fluid in the pressure oil tank, and the rod chamber pore of piston cylinder links to each other with atmosphere or links to each other with vacuum pump with first switch valve through the 3rd switch valve; The bottom of pressure oil tank has the hydraulic fluid port that is connected with oil hydraulic pump.
4. a kind of pressure oil tank according to claim 3 is characterized in that, described switch valve is stop valve or electromagnetism two logical switch valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620141322 CN200989337Y (en) | 2006-12-22 | 2006-12-22 | Pressure oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620141322 CN200989337Y (en) | 2006-12-22 | 2006-12-22 | Pressure oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200989337Y true CN200989337Y (en) | 2007-12-12 |
Family
ID=38940374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620141322 Expired - Lifetime CN200989337Y (en) | 2006-12-22 | 2006-12-22 | Pressure oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200989337Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840132A (en) * | 2012-08-28 | 2012-12-26 | 无锡市华润环保设备有限公司 | Automatic exhaust system of oil pump |
| CN105626599A (en) * | 2014-11-27 | 2016-06-01 | 无锡市海骏液压机电设备有限公司 | Stable pressurization type oil tank provided with air bag |
| CN107503992A (en) * | 2017-10-17 | 2017-12-22 | 广西柳工机械股份有限公司 | Hydraulic oil container |
| CN111810466A (en) * | 2020-07-04 | 2020-10-23 | 中国石油天然气集团有限公司 | Oil injection device and oil injection process |
-
2006
- 2006-12-22 CN CN 200620141322 patent/CN200989337Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840132A (en) * | 2012-08-28 | 2012-12-26 | 无锡市华润环保设备有限公司 | Automatic exhaust system of oil pump |
| CN102840132B (en) * | 2012-08-28 | 2015-06-03 | 江苏高博智融科技有限公司 | Automatic exhaust system of oil pump |
| CN105626599A (en) * | 2014-11-27 | 2016-06-01 | 无锡市海骏液压机电设备有限公司 | Stable pressurization type oil tank provided with air bag |
| CN107503992A (en) * | 2017-10-17 | 2017-12-22 | 广西柳工机械股份有限公司 | Hydraulic oil container |
| CN111810466A (en) * | 2020-07-04 | 2020-10-23 | 中国石油天然气集团有限公司 | Oil injection device and oil injection process |
| CN111810466B (en) * | 2020-07-04 | 2022-07-22 | 中国石油天然气集团有限公司 | Oil injection device and oil injection process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090610 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |