CN113864290A - Exhaust oiling device - Google Patents
Exhaust oiling device Download PDFInfo
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- CN113864290A CN113864290A CN202111211312.3A CN202111211312A CN113864290A CN 113864290 A CN113864290 A CN 113864290A CN 202111211312 A CN202111211312 A CN 202111211312A CN 113864290 A CN113864290 A CN 113864290A
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- rotary valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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Abstract
The invention discloses an exhaust and oil injection device, relates to an auxiliary device capable of vacuumizing, oil injection and exhaust, and belongs to the technical field of tests. The invention relates to an auxiliary device of a pulse pressure calibration device, which can be used for vacuumizing, oil injection and exhaust and comprises a pressure controller, an oil-gas separator, a three-way rotary valve, a pressure monitor, a rotary valve, a hydraulic pump, a first-stage filter, a second-stage filter and a hydraulic cylinder. The method comprises the steps of firstly installing a pressure sensor used for testing on a hydraulic cylinder, forming a closed environment in the hydraulic cylinder, then controlling the pressure by using a pressure controller, vacuumizing the hydraulic cylinder, then injecting hydraulic oil into the hydraulic cylinder through a hydraulic pump, placing the hydraulic cylinder on a calibration platform for testing after the oil injection is finished, and recovering the residual hydraulic oil in a pipeline and recycling the residual hydraulic oil after the operation is finished. The invention can avoid the complicated procedures of manual oil injection and air exhaust and obviously improve the working efficiency.
Description
Technical Field
The invention relates to an exhaust and oil injection device, in particular to an auxiliary device capable of vacuumizing, oil injection and exhaust, and belongs to the technical field of tests.
Background
With the continuous development of scientific technology, the field of dynamic testing is required to be increased continuously, the pulse pressure calibration device is one of the most widely applied dynamic pressure calibration devices, and the pulse pressure calibration device can adjust the pressure in an experiment, so that the output sensitivity and nonlinearity of the pressure testing system in a full-scale range are obtained. Because the pulse pressure calibration device basically adopts liquid medium to test in order to reach the pressure amplitude of hundreds of megapascals, before carrying out the pulse pressure calibration test, the work of exhausting and injecting oil to the hydraulic cylinder is needed, at present, the manual exhausting and injecting oil mode is basically adopted to operate, but the gas in the hydraulic cylinder can be exhausted only by a plurality of cycles, and the waste of a large amount of hydraulic oil is also caused, the whole exhausting and injecting oil work is time-consuming and labor-consuming, and the efficiency is low, therefore, the efficiency of the pulse pressure calibration test can be greatly improved by solving the exhausting and injecting oil work.
Disclosure of Invention
The invention aims to provide an oil injection and exhaust device which is an auxiliary device of a pulse pressure calibration device and can be used for vacuumizing, oil injection and exhaust. The invention can avoid the complicated procedures of manual oil injection and air exhaust and obviously improve the working efficiency.
The purpose of the invention is realized by the following technical scheme.
The invention discloses an exhaust and oil injection device which comprises a pressure controller, an oil-gas separator, a three-way rotary valve, a pressure monitor, a rotary valve, a hydraulic pump, a first-stage filter, a second-stage filter and a hydraulic cylinder.
The exhaust and oil injection device mainly comprises a gas circuit, an oil circuit and a loading section; the gas path consists of a pressure controller and an oil-gas separator, the output end of the pressure controller is connected with the input end of the oil-gas separator, and the output end of the oil-gas separator is connected with one path of the three-way rotary valve; the oil circuit consists of a hydraulic pump, a first-stage filter and a second-stage filter, the output end of the hydraulic pump is connected with the input end of the first-stage filter through a pipeline, the output end of the first-stage filter is connected with the input end of the second-stage filter through a pipeline, and the output end of the second-stage filter is connected with the other path of the three-way rotary valve; the loading section mainly comprises a three-way rotary valve, a pressure monitor, a rotary valve and a hydraulic cylinder, wherein the third path of the three-way rotary valve is connected with the rotary valve through a pipeline, the pressure monitor monitors the pressure of the pipeline between the three-way rotary valve and the rotary valve, and the rotary valve is directly connected with the hydraulic cylinder through the pipeline; the sealing performance of each connecting part of the whole device is ensured, and leakage cannot occur.
The working method of the air exhaust and oil injection device disclosed by the invention comprises the following steps:
when the work of exhausting and filling oil in the hydraulic cylinder is carried out, firstly all valves are closed, the related sensors are installed in the hydraulic cylinder, then the three-way rotary valve is communicated with the air passage part, the rotary valve is opened, the pressure controller is adjusted to be in a vacuumizing mode, the pressure in the pipeline is read in real time by the pressure monitor, when the pressure in the pipeline reaches a vacuum condition, the rotary valve is closed, the three-way rotary valve is communicated with the oil passage part, the hydraulic pump and the rotary valve are opened, hydraulic oil flows into the hydraulic cylinder after passing through the first-stage filter and the second-stage filter, the rotary valve is closed firstly after the hydraulic cylinder is filled with oil, then the hydraulic pump is closed, the work of exhausting and filling oil is finished, the hydraulic cylinder is placed on the calibration platform for testing, finally the pressure controller is adjusted to be in a positive pressure mode, the rotary valve is opened, and the three-way rotary valve is communicated with the air passage part, the hydraulic oil in the pipeline is discharged by gas and cleaned for the next use.
After the operation is finished, the residual hydraulic oil in the pipeline is recovered and reused.
Has the advantages that:
1. the invention discloses an oil injection and exhaust device, which is an auxiliary device of a pulse pressure calibration device. The invention can avoid the complicated procedures of manual oil injection and air exhaust and obviously improve the working efficiency.
2. According to the oil injection and exhaust device disclosed by the invention, the hydraulic cylinder is connected with the air passage and the oil passage through the three-way rotary valve, the time and labor wasting work of daily laboratory personnel can be simply and efficiently completed in the modes of air extraction and oil injection, the operation is simple, the operation is convenient, the time is saved, and the work efficiency can be obviously improved.
3. According to the oil injection exhaust device disclosed by the invention, the oil-gas separator is added in the gas path part, so that hydraulic oil is effectively separated from gas, stable and reliable output of the pressure controller is ensured, and meanwhile, the influence of the hydraulic oil in the oil path part on the gas path system can be avoided.
4. According to the oil injection and exhaust device disclosed by the invention, the first-stage filter and the second-stage filter are added in the oil path part, and the gas mixed in the hydraulic oil is filtered by adjusting the size of the meshes of the filter screens of the two-stage filters, so that the hydraulic oil entering a hydraulic cylinder is effectively ensured not to be mixed with gas any more, and the working efficiency is obviously improved.
5. According to the oil injection and exhaust device disclosed by the invention, after the operation is finished, the residual hydraulic oil in the pipeline is recovered and reused, and compared with the prior manual operation which wastes a large amount of hydraulic oil, the oil injection and exhaust device is economical and reliable, and is energy-saving and environment-friendly.
Drawings
FIG. 1 is a schematic diagram of an oil injection and air exhaust device disclosed by the invention.
The system comprises a pressure controller 1, an oil-gas separator 2, a three-way rotary valve 3, a pressure monitor 4, a rotary valve 5, a hydraulic pump 6, a first-stage filter 7, a second-stage filter 8 and a hydraulic cylinder 9.
Detailed Description
For a better understanding of the objects and advantages of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Example 1:
as shown in fig. 1, the present embodiment discloses an exhaust and oil injection device, which includes a pressure controller 1, an oil-gas separator 2, a three-way rotary valve 3, a pressure monitor 4, a rotary valve 5, a hydraulic pump 6, a first-stage filter 7, a second-stage filter 8, and a hydraulic cylinder 9.
The exhaust and oil injection device mainly comprises a gas circuit, an oil circuit and a loading section; the gas path consists of a pressure controller 1 and an oil-gas separator 2, the output end of the pressure controller 1 is connected with the input end of the oil-gas separator 2, and the output end of the oil-gas separator 2 is connected with one path of the three-way rotary valve 3; the oil circuit consists of a hydraulic pump 6, a first-stage filter 7 and a second-stage filter 8, the output end of the hydraulic pump 6 is connected with the input end of the first-stage filter 7 through a pipeline, the output end of the first-stage filter 7 is connected with the input end of the second-stage filter 8 through a pipeline, and the output end of the second-stage filter 8 is connected with the other path of the three-way rotary valve 3; the loading section consists of a three-way rotary valve 3, a pressure monitor 4, a rotary valve 5 and a hydraulic cylinder 9, a third path of the three-way rotary valve 3 is connected with the rotary valve 5 through a pipeline, the pressure monitor 4 monitors the pressure of the pipeline between the three-way rotary valve 3 and the rotary valve 5, and the rotary valve 5 and the hydraulic cylinder 9 are directly connected through the pipeline; the sealing performance of each connecting part of the whole device is ensured, and leakage cannot occur.
The working method of the oil injection and exhaust device disclosed by the embodiment comprises the following steps: when the work of exhausting and filling oil in the hydraulic cylinder 9 is carried out, firstly all valves are closed, relevant sensors are installed in the hydraulic cylinder 9, then the three-way rotary valve 3 is communicated with the air path part, the rotary valve 5 is opened, the pressure controller 1 is adjusted to be in a vacuumizing mode, the pressure in the pipeline is read in real time through the pressure monitor 4, when the pressure in the pipeline reaches a vacuum condition, the rotary valve 5 is closed, the three-way rotary valve 3 is communicated with the oil path part, the hydraulic pump 6 and the rotary valve 5 are opened, hydraulic oil flows into the hydraulic cylinder after passing through the first-stage filter 7 and the second-stage filter 8, after the hydraulic cylinder 9 is full of oil, the rotary valve 5 is closed, the hydraulic pump 6 is closed, at the moment, the work of exhausting and filling oil is completed, the hydraulic cylinder can be placed on a calibration platform for testing, finally, the pressure controller 1 is adjusted to be in a positive pressure mode, the rotary valve 5 is opened, the three-way rotary valve 3 is communicated with the air path part, and the hydraulic oil in the air path part is discharged by air and cleaned for the next use. The initial pressure in the pressure chamber can be set as desired while conducting the test.
The mechanical structure related to the air and oil exhaust and injection device of the embodiment has very long service life and long-time continuous use capacity, the used liquid medium can be recycled, the damage and pollution to the use environment can not be caused, and the device is economical and efficient.
The above detailed description is intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above detailed description is only exemplary of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. The utility model provides an exhaust oiling device which characterized in that: the device comprises a pressure controller (1), an oil-gas separator (2), a three-way rotary valve (3), a pressure monitor (4), a rotary valve (5), a hydraulic pump (6), a first-stage filter (7), a second-stage filter (8) and a hydraulic cylinder (9);
the exhaust and oil injection device mainly comprises a gas circuit, an oil circuit and a loading section; the gas path consists of a pressure controller (1) and an oil-gas separator (2), the output end of the pressure controller (1) is connected with the input end of the oil-gas separator (2), and the output end of the oil-gas separator (2) is connected with one path of the three-way rotary valve (3); the oil circuit consists of a hydraulic pump (6), a first-stage filter (7) and a second-stage filter (8), the output end of the hydraulic pump (6) is connected with the input end of the first-stage filter (7) through a pipeline, the output end of the first-stage filter (7) is connected with the input end of the second-stage filter (8) through a pipeline, and the output end of the second-stage filter (8) is connected with the other path of the three-way rotary valve (3); the loading section consists of a three-way rotary valve (3), a pressure monitor (4), a rotary valve (5) and a hydraulic cylinder (9), a third path of the three-way rotary valve (3) is connected with the rotary valve (5) through a pipeline, the pressure monitor (4) is arranged between the three-way rotary valve and the rotary valve to monitor the pressure of the pipeline, and the rotary valve (5) is directly connected with the hydraulic cylinder (9) through the pipeline; the sealing performance of each connecting part of the whole device is ensured, and leakage cannot occur.
2. The gas and oil injection apparatus of claim 1, wherein: the working method is that,
when the work of exhausting and filling oil in the hydraulic cylinder (9) is carried out, firstly all valves are closed, relevant sensors are installed in the hydraulic cylinder (9), then the three-way rotary valve (3) is communicated with the air circuit part, the rotary valve (5) is opened, the pressure controller (1) is adjusted to a vacuumizing mode, the pressure in the pipeline is read in real time through the pressure monitor (4), when the pressure in the pipeline reaches the vacuum condition, the rotary valve (5) is closed, the three-way rotary valve (3) is communicated with the oil circuit part, the hydraulic pump (6) and the rotary valve (5) are opened, hydraulic oil flows into the hydraulic cylinder after passing through the first-stage filter (7) and the second-stage filter (8), after the hydraulic cylinder (9) is filled with oil, the rotary valve (5) is closed firstly, then the hydraulic pump (6) is closed, the work of exhausting and filling oil is finished at the moment, the hydraulic cylinder can be placed on a calibration platform for testing, and finally, adjusting the pressure controller (1) to be in a positive pressure mode, opening the rotary valve (5), connecting the three-way rotary valve (3) with the air path part, and discharging and cleaning the hydraulic oil in the air path by using air for next use.
3. The gas and oil injection apparatus of claim 2, wherein: after the operation is finished, the residual hydraulic oil in the pipeline is recovered and reused.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111211312.3A CN113864290A (en) | 2021-10-18 | 2021-10-18 | Exhaust oiling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111211312.3A CN113864290A (en) | 2021-10-18 | 2021-10-18 | Exhaust oiling device |
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| CN113864290A true CN113864290A (en) | 2021-12-31 |
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| CN202111211312.3A Pending CN113864290A (en) | 2021-10-18 | 2021-10-18 | Exhaust oiling device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4696684A (en) * | 1985-06-13 | 1987-09-29 | Hanshi Shen | Method and apparatus for eliminating cavitation in hydraulic systems |
| JPS62237712A (en) * | 1986-04-08 | 1987-10-17 | Mitsubishi Electric Corp | Degassing and oil pouring method for oil-filled apparatus |
| CN102680049A (en) * | 2012-06-11 | 2012-09-19 | 山东电力集团公司潍坊供电公司 | Vacuum oil injection monitoring device of transformer |
| CN102817883A (en) * | 2012-09-11 | 2012-12-12 | 浙江大学 | Multi-functional special oiling device for deep-sea hydraulic system |
| CN203412859U (en) * | 2013-08-16 | 2014-01-29 | 中国西电电气股份有限公司 | Visible vacuum pumping, oil filling and gas exhausting device |
| CN103903834A (en) * | 2014-04-17 | 2014-07-02 | 中国北车集团大连机车车辆有限公司 | Insulating oil injection system and method for main transformer of electric locomotive |
| CN105289095A (en) * | 2015-11-25 | 2016-02-03 | 国网浙江省电力公司绍兴供电公司 | Automatic insulating oil filtering system and filtering method thereof |
| CN209193543U (en) * | 2018-11-16 | 2019-08-02 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of HMB-8.3 hydraulic disk spring device vacuum oiling device |
| CN110415930A (en) * | 2019-07-24 | 2019-11-05 | 国网浙江省电力有限公司检修分公司 | The online vacuum oiling device of conservator and its application method |
-
2021
- 2021-10-18 CN CN202111211312.3A patent/CN113864290A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4696684A (en) * | 1985-06-13 | 1987-09-29 | Hanshi Shen | Method and apparatus for eliminating cavitation in hydraulic systems |
| JPS62237712A (en) * | 1986-04-08 | 1987-10-17 | Mitsubishi Electric Corp | Degassing and oil pouring method for oil-filled apparatus |
| CN102680049A (en) * | 2012-06-11 | 2012-09-19 | 山东电力集团公司潍坊供电公司 | Vacuum oil injection monitoring device of transformer |
| CN102817883A (en) * | 2012-09-11 | 2012-12-12 | 浙江大学 | Multi-functional special oiling device for deep-sea hydraulic system |
| CN203412859U (en) * | 2013-08-16 | 2014-01-29 | 中国西电电气股份有限公司 | Visible vacuum pumping, oil filling and gas exhausting device |
| CN103903834A (en) * | 2014-04-17 | 2014-07-02 | 中国北车集团大连机车车辆有限公司 | Insulating oil injection system and method for main transformer of electric locomotive |
| CN105289095A (en) * | 2015-11-25 | 2016-02-03 | 国网浙江省电力公司绍兴供电公司 | Automatic insulating oil filtering system and filtering method thereof |
| CN209193543U (en) * | 2018-11-16 | 2019-08-02 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of HMB-8.3 hydraulic disk spring device vacuum oiling device |
| CN110415930A (en) * | 2019-07-24 | 2019-11-05 | 国网浙江省电力有限公司检修分公司 | The online vacuum oiling device of conservator and its application method |
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