CN2566261Y - Composite liquid volume compensation device - Google Patents
Composite liquid volume compensation device Download PDFInfo
- Publication number
- CN2566261Y CN2566261Y CN 02269405 CN02269405U CN2566261Y CN 2566261 Y CN2566261 Y CN 2566261Y CN 02269405 CN02269405 CN 02269405 CN 02269405 U CN02269405 U CN 02269405U CN 2566261 Y CN2566261 Y CN 2566261Y
- Authority
- CN
- China
- Prior art keywords
- compensation
- cross beam
- test
- volume
- liquid volume
- 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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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a composite type liquid volume compensating device. The utility model comprises a test bed frame, a guideway, a movable cross beam, a bladder type energy accumulator, a hydraulic cylinder and a high-pressure flexible pipe, wherein, the movable cross beam is connected with the test bed frame through the hydraulic cylinder. The utility model is characterized in that a compensating device is added between the test bed frame and the movable cross beam, the compensating device comprises a compensating plunger piston, a sealed packing and a compensating liquid cylinder, wherein, the compensating liquid cylinder is communicated with a pressure testing device through the high-pressure flexible pipe.
Description
Technical field
The utility model relates to a kind of pressure testing liquid volume compensation system, particularly a kind of combined type liquid volume compensation system.
Background technology
When high-tension apparatus is carried out withstand voltage test, generally all to form an airtight space, equipment is tested as test(ing) medium with liquid.If do the dynamic pressure test, particularly exist between the pressure testing equipment to do relatively reciprocating motion, generally can cause the volume-variation of confined space, thereby cause the pressure surge of internal liquid.At present, in order to reduce this pressure surge, generally adopt bladder type hydropneumatic accumulator to compensate the volume change of liquid.The volume change of liquid is big more, and desired pressure range is more little, and the volume of needed bladder type hydropneumatic accumulator is also just big more, therefore often needs in parallel use of a plurality of bladder type hydropneumatic accumulators just can meet the demands, and this just makes, and equipment investment is big, cost is higher.
For overcoming big, the higher shortcoming of cost of equipment investment that existing liquid volume compensation system exists, the purpose of this utility model is to propose a kind of combined type liquid volume compensation system, reduce the volume change of liquid to greatest extent, thereby reduce the volume of needed bladder type hydropneumatic accumulator.
Summary of the invention
For realizing described purpose, the combined type liquid volume compensation system that the utility model proposes comprises: test-bed [1], guide rail [3], moved cross beam [5], bladder type hydropneumatic accumulator [9], hydraulic cylinder [10] and high-pressure hose [12].Connect by hydraulic cylinder [10] between moved cross beam [5] and the test-bed [1].It is characterized in that having increased compensation system between test-bed [1] and moved cross beam [5], compensation system comprises compensation plunger [2], sealed packing [4] and compensation fluid cylinder [6], and compensation fluid cylinder [6] is communicated with pressure testing device [8] by high-pressure hose [12].
Owing to increased compensation plunger [2], sealed packing [4] and compensation fluid cylinder [6], reduced the volume change of liquid, reduced the volume of needed bladder type hydropneumatic accumulator [9], therefore can reduce equipment investment and cost.
The purpose of this utility model, feature and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Description of drawings
Fig. 1 is a kind of combined type liquid volume compensation system synoptic diagram.1 test-bed, 2 compensation plungers, 3 guide rails, 4 sealed packings, 5 moved cross beams, 6 compensation fluid cylinders, 7 packing units, 8 pressure testing devices, 9 bladder type hydropneumatic accumulators, 10 hydraulic cylinders, 11 check bars, 12 high-pressure hoses
Embodiment
A most preferred embodiment of the present utility model now is provided in conjunction with the accompanying drawings.
Guide rail [3] is housed on the test-bed [1], and moved cross beam [5] can be along guide rail [3] to-and-fro movement under the driving of hydraulic cylinder [10].Check bar [11] and compensation fluid cylinder [6] are housed on the moved cross beam [5], and check bar [11] and compensation fluid cylinder [6] move with moved cross beam [5].Pressure testing device [8] is equipped with in the bottom of test-bed [1], and packing unit [7] is equipped with in the porch of pressure testing device [8], and check bar [11] passes packing unit [7], is sealed by packing unit [7] between check bar [11] and the pressure testing device [8].Compensation plunger [2] is equipped with at the top of test-bed [1], and when moved cross beam [5] when moving up and down, compensation plunger [2] is done relative to-and-fro movement in compensation fluid cylinder [6], and compensation plunger [2] and compensating between the fluid cylinder [6] is sealed by sealed packing [4].During test, when moved cross beam [5] when moving down, check bar [11] progresses into pressure testing device [8], volume in the pressure testing device [8] reduces gradually, and compensation plunger [2] withdraws from compensation fluid cylinder [6] gradually, volume in compensation fluid cylinder [6] increases gradually, so the total measurement (volume) of pressure testing device [8] and compensation fluid cylinder [6] changes not quite, with the bladder type hydropneumatic accumulator [9] of less volume pressure surge is controlled in allowed limits.Equally, when moved cross beam [5] when moving up, the volume in the pressure testing device [8] increases gradually, and the volume in the compensation fluid cylinder [6] reduces gradually, and the total measurement (volume) variation of pressure testing device [8] and compensation fluid cylinder [6] is also little.Check bar [11] for sectional dimension, change of shape, by changing the diameter of compensation plunger [2], can in [11] oscillation cycles of check bar, make the total measurement (volume) variable quantity minimum of pressure testing device [8] and compensation fluid cylinder [6], and this moment, needed bladder type hydropneumatic accumulator [9] volume was also minimum.
Claims (2)
1. combined type liquid volume compensation system, comprise: test-bed [1], guide rail [3], moved cross beam [5], bladder type hydropneumatic accumulator [9], hydraulic cylinder [10] and high-pressure hose [12], connect by hydraulic cylinder [10] between moved cross beam [5] and the test-bed [1], it is characterized in that between test-bed [1] and moved cross beam [5], having increased compensation system.
2. combined type liquid volume compensation system according to claim 1 is characterized in that compensation system comprises compensation plunger [2], sealed packing [4] and compensation fluid cylinder [6], and compensation fluid cylinder [6] is communicated with pressure testing device [8] by high-pressure hose [12].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269405 CN2566261Y (en) | 2002-09-06 | 2002-09-06 | Composite liquid volume compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269405 CN2566261Y (en) | 2002-09-06 | 2002-09-06 | Composite liquid volume compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2566261Y true CN2566261Y (en) | 2003-08-13 |
Family
ID=33734651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02269405 Expired - Fee Related CN2566261Y (en) | 2002-09-06 | 2002-09-06 | Composite liquid volume compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2566261Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001036A (en) * | 2018-05-24 | 2018-12-14 | 大连理工大学 | A kind of lever inverse type triaxial cell pressure compensator |
| CN110132771A (en) * | 2019-05-27 | 2019-08-16 | 沈阳仪表科学研究院有限公司 | Compensator constant pressure fatigue tester |
-
2002
- 2002-09-06 CN CN 02269405 patent/CN2566261Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001036A (en) * | 2018-05-24 | 2018-12-14 | 大连理工大学 | A kind of lever inverse type triaxial cell pressure compensator |
| CN110132771A (en) * | 2019-05-27 | 2019-08-16 | 沈阳仪表科学研究院有限公司 | Compensator constant pressure fatigue tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |