CN201396343Y - Device for removing cavitation in hydraulic system - Google Patents
Device for removing cavitation in hydraulic system Download PDFInfo
- Publication number
- CN201396343Y CN201396343Y CN 200920039708 CN200920039708U CN201396343Y CN 201396343 Y CN201396343 Y CN 201396343Y CN 200920039708 CN200920039708 CN 200920039708 CN 200920039708 U CN200920039708 U CN 200920039708U CN 201396343 Y CN201396343 Y CN 201396343Y
- Authority
- CN
- China
- Prior art keywords
- seal case
- air bag
- box body
- stop valve
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a device for removing cavitation in a hydraulic system. The top part of a sealed box body (1) presents a convex shape, an air bag (2) is positioned at the bottom of the sealed box body (1), an oil filler hole is arranged at the top of the sealed box body (1), a vacuum stop valve (7) is arranged on the oil filler hole, one end of a balance pipe (3) is arranged at the topof the box body (1) by a tee joint and communicated with an internal cavity thereof, vacuum stop valves (6, 8, 9) are arranged on three passages of the tee joint with one passage connected with a vacuum pump (5), the other end of the balance pipe (3) is provided with a bottom communicated flexible air bag (2) of the sealed box body (1) by the tee joint, one passage of the tee joint is connected with an air source (4), and a vacuum stop valve (10) is arranged on the passage between the air source (4) and the flexible air bag (2). The utility model realizes the removal of cavitation by static pre-processing and is simple in structure, convenient in operation and strong in practicability. A temperature controller can cause the sealed box body to have a suitable control temperature.
Description
Technical field
The utility model relates to a kind of device of eliminating air pocket in the hydraulic system.
Background technique
In hydraulic system, the position of flow velocity and pressure change is a lot, will produce air pocket when the pressure in somewhere is reduced to the gas separation pressure of fluid.
After air pocket takes place, vanish when flowing into the elevated pressures district, produce local high pressure and high temperature when vanishing with oil.Because high temperature impels fluid density and viscosity to descend, and makes fluid generation oxidation, acidifying, cause fluid progressively rotten, thereby shorten the working life of oil; Simultaneously hydraulic unit is produced the physical chemistry spot corrosion, the long-term like this parts that go down can suffer damage.
The generation of air pocket also makes hydraulic system produce vibration and noise, and the stability of system degenerates, and the rigidity of oil cylinder, the operation precision of actuator and oil pump volumetric efficiency all descend, and the throttling position produces the air pocket obstruction and the dynamic performance of system is degenerated.
This shows that the generation of air pocket can bring a lot of negative influences, also do not have good device to eliminate air pocket at present.
Summary of the invention
The utility model is at the existing in prior technology shortcoming, and the device of air pocket in the strong elimination hydraulic system of a kind of simple and practical property is provided, and this device is to the elimination of the static pretreatment realization of hydraulic oil air pocket.
The utility model is realized by following technical measures: it comprises seal case, balance tube and air bag, the top of seal case is a convex, air bag is positioned at the bottom of seal case, oil filler is established at the seal case top, vaccum stop valve is installed on the oil filler, one end of balance tube is installed in seal case by threeway top communicates with its inner chamber, on three passages of threeway vaccum stop valve is set all, connect vacuum pump on one of them passage, the other end of balance tube is communicated with extension airbag by the bottom that threeway is installed in seal case, connect source of the gas on one of them passage, on the passage between source of the gas and the extension airbag vaccum stop valve is set.
Vacuum gauge all is installed on above-mentioned balance tube and the seal case.
The periphery of above-mentioned air bag is provided with the flexible protective cover.
In the above-mentioned seal case temperature controller is set.
Before oiling,, the air pressure in the air bag is kept and the barometric pressure basically identical by in air bag, charging into certain gas; Refuel and to whole seal case, except that the volume of the air bag of heaving, be full of gasoline, close the valve between vacuum pump and the seal case then, pneumatic vacuum pump is extracted the gas in the air bag out, pasta in the container is descended, form space with certain negative pressure and certain vacuum degree at the fuel tank top, this negative pressure will be adjusted to suitable degree, water content in oil, volatile component are spilt in this space, and fluid is non-volatile substantially; Simultaneously air bag and head room are vacuumized, guarantee that fluid is not drawn out of, be extracted into below the disjoining pressure that is dissolved in air in the oil, and keep the regular hour, till gas exhausts in oil; The stop valve of opening at last between source of the gas and seal case gets final product.
The beneficial effects of the utility model are: 1, simple in structure, easy to operate, practical; 2, the flexible protective cover can play the effect of protection air bag, plays the effect of spacing air bag; 3 temperature controllers can make suitable control temperature in the seal case.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure, 1, seal case, 2, air bag, 3, balance tube, 4, source of the gas; 5, vacuum pump, 6, vaccum stop valve, 7, vaccum stop valve, 8, vaccum stop valve, 9, vaccum stop valve; 10, vaccum stop valve, 11, safety cover, 12, temperature controller, 13,14 vacuum gauges.
Embodiment
For clearly demonstrating the technical characterstic of this programme, by an embodiment this programme is set forth below in conjunction with accompanying drawing.
As shown in Figure 1, it comprises seal case 1, balance tube 3 and air bag 2, the top of seal case 1 is a convex, air bag 2 is positioned at the bottom of seal case 1, oil filler is established at seal case 1 top, vaccum stop valve 7 is installed on the oil filler, one end of balance tube 3 is installed in casing 1 by threeway top communicates with its inner chamber, on three passages of threeway vaccum stop valve 6 is set all, 8,9, connect vacuum pump 5 on one of them passage, the bottom that the other end of balance tube 3 is installed seal case 1 by threeway is communicated with extension airbag 2, connects source of the gas 4 on one of them passage, on the passage between source of the gas 4 and the extension airbag 2 vaccum stop valve 10 is set.
The periphery of above-mentioned air bag 2 is provided with flexible protective cover 11.
In the above-mentioned seal case 1 temperature controller 12 is set.
Before oiling,, the air pressure in the air bag 2 is kept and the barometric pressure basically identical by in air bag 2, charging into certain gas; Oiling is full of gasoline except that the volume of the air bag of heaving 2 to whole seal case 1, close the valve between vacuum pump 5 and the seal case 2 then; Pneumatic vacuum pump 5 is extracted the gas in the air bag 2 out, pasta in the container is descended, form the space with certain negative pressure and certain vacuum degree at the fuel tank top, this negative pressure will be adjusted to suitable degree, moisture, volatile component in the oil are spilt in this space, and fluid is non-volatile substantially; Simultaneously air bag 2 and head room are vacuumized, guarantee that fluid is not drawn out of, be extracted into below the disjoining pressure that is dissolved in air in the oil, and keep the regular hour, till gas exhausts in oil; The stop valve 10 of opening 1 of source of the gas 4 and seal case at last gets final product.
Claims (4)
1. the device of air pocket in the elimination hydraulic system, it is characterized in that: comprise seal case (1), balance tube (3) and air bag (2), the top of seal case (1) is a convex, air bag (2) is positioned at the bottom of seal case (1), oil filler is established at seal case (1) top, vaccum stop valve (7) is installed on the oil filler, one end of balance tube (3) is installed in casing (1) by threeway top communicates with its inner chamber, on three passages of threeway vaccum stop valve (6 is set all, 8,9), connect vacuum pump (5) on one of them passage, the bottom that the other end of balance tube (3) is installed seal case (1) by threeway is communicated with extension airbag (2), connect source of the gas (4) on one of them passage, on the passage between source of the gas (4) and the extension airbag (2) vaccum stop valve (10) is set.
2. the device of air pocket in the elimination hydraulic system according to claim 1 is characterized in that: vacuum gauge (13,14) all is installed on balance tube (3) and the seal case (1).
3. the device of air pocket in the elimination hydraulic system according to claim 1 is characterized in that: the periphery of air bag (2) is provided with flexible protective cover (11).
4. the device of air pocket in the elimination hydraulic system according to claim 1 is characterized in that: temperature controller (12) is set in the seal case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920039708 CN201396343Y (en) | 2009-04-29 | 2009-04-29 | Device for removing cavitation in hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920039708 CN201396343Y (en) | 2009-04-29 | 2009-04-29 | Device for removing cavitation in hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201396343Y true CN201396343Y (en) | 2010-02-03 |
Family
ID=41618852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920039708 Expired - Fee Related CN201396343Y (en) | 2009-04-29 | 2009-04-29 | Device for removing cavitation in hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201396343Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103620235A (en) * | 2011-05-24 | 2014-03-05 | 派克汉尼芬公司 | Hydraulic system de-aeration device |
| CN106438589A (en) * | 2016-12-06 | 2017-02-22 | 中国船舶重工集团公司第七0研究所 | Gas exhaust device used for closed type hydraulic system |
| CN111810466A (en) * | 2020-07-04 | 2020-10-23 | 中国石油天然气集团有限公司 | An oil injection device and oil injection process |
-
2009
- 2009-04-29 CN CN 200920039708 patent/CN201396343Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103620235A (en) * | 2011-05-24 | 2014-03-05 | 派克汉尼芬公司 | Hydraulic system de-aeration device |
| CN103620235B (en) * | 2011-05-24 | 2016-08-31 | 派克汉尼芬公司 | Hydraulic system degassing device |
| CN106438589A (en) * | 2016-12-06 | 2017-02-22 | 中国船舶重工集团公司第七0研究所 | Gas exhaust device used for closed type hydraulic system |
| CN106438589B (en) * | 2016-12-06 | 2019-03-08 | 中国船舶重工集团公司第七一0研究所 | A kind of exhaust apparatus for closed type hydraulic system |
| CN111810466A (en) * | 2020-07-04 | 2020-10-23 | 中国石油天然气集团有限公司 | An 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20100429 |