CN112082794A - Double-power-source gas cylinder fatigue experiment device - Google Patents
Double-power-source gas cylinder fatigue experiment device Download PDFInfo
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- CN112082794A CN112082794A CN202010935279.8A CN202010935279A CN112082794A CN 112082794 A CN112082794 A CN 112082794A CN 202010935279 A CN202010935279 A CN 202010935279A CN 112082794 A CN112082794 A CN 112082794A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical field of fatigue tests of high-pressure gas cylinders, and particularly relates to a double-power-source gas cylinder fatigue test device which comprises a hydraulic pump, an industrial control all-in-one machine, a gas cylinder connecting set and a plurality of gas-liquid booster pumps, wherein each gas-liquid booster pump comprises a liquid inlet, a liquid outlet and a gas inlet, the liquid inlets of the gas-liquid booster pumps are communicated with the hydraulic pump, the liquid outlets of the gas-liquid booster pumps are communicated with the gas cylinder connecting set, each gas cylinder connecting set comprises a plurality of parallel quick connectors A with check valves, the gas inlets of the gas-liquid booster pumps are connected with a gas source, an electromagnetic reversing valve is arranged between each gas-liquid booster pump and the gas source, the gas cylinder connecting. The purpose is as follows: the hydraulic oil is pressurized simultaneously through the plurality of gas-liquid booster pumps connected in parallel, the pressurizing speed is increased, and meanwhile, the equipment purchase cost is reduced compared with equipment capable of pressurizing hydraulic oil at a large flow rate at one time.
Description
Technical Field
The invention belongs to the technical field of high-pressure gas cylinder fatigue tests, and particularly relates to a double-power-source gas cylinder fatigue test device.
Background
The development of the gas cylinder industry is closely related to the development of the industry. Along with the rapid development of scientific and technical level and industry, the application of high-pressure gas cylinders is more and more extensive, various high-pressure high-performance gas cylinders are continuously researched and developed and produced, and the high-pressure gas cylinders are also listed in the type test of the civil gas cylinder industry. The production process of the high-pressure gas cylinder is improved through the fatigue test of the high-pressure gas cylinder, the comprehensive performance of the high-pressure gas cylinder is improved, and the method plays an important role in the development of the high-pressure gas cylinder industry.
The fatigue test of the high-pressure gas cylinder refers to that the high-pressure gas cylinder is repeatedly subjected to pressurization test within a period of time, continuous pulse pressure circulation is realized, and the integrity of the gas cylinder, the recorded corresponding data and the like are observed after the test is finished.
Disclosure of Invention
The purpose of the invention is: the gas cylinder fatigue experiment device with double power sources is used for simultaneously pressurizing hydraulic oil through a plurality of gas-liquid pressurizing pumps connected in parallel, so that the pressurizing speed is increased, and the equipment purchase cost is reduced compared with equipment capable of pressurizing hydraulic oil at a large flow rate at one time.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a gas cylinder fatigue test device in double dynamical source, includes hydraulic pump, industry control all-in-one, gas cylinder linkage group and a plurality of gas-liquid booster pump, the gas-liquid booster pump includes inlet, liquid outlet and air inlet, the inlet and the hydraulic pump intercommunication of gas-liquid booster pump, the liquid outlet and the gas cylinder linkage group intercommunication of gas-liquid booster pump, the gas cylinder linkage group is including a plurality of parallelly connected quick-operation joint A who takes the check valve, the air inlet of gas-liquid booster pump is connected with the air supply, install the electromagnetic directional valve between gas-liquid booster pump and the air supply, the gas cylinder linkage group still is connected with pressure transmitter and air-vent valve, industry control all-in-one respectively with hydraulic pump.
Further, the pressurization proportion of the plurality of gas-liquid booster pumps is different. Due to the structural design, the maximum supercharging speed and efficiency can be ensured according to the difference of the number of the tested gas cylinders and the test pressure.
Further limiting, the pressure regulating valve is connected with an electric proportional valve, the electric proportional valve is communicated with an air source, and the industrial control all-in-one machine is in signal connection with the electric proportional valve. Such structural design controls electric proportional valve through industry control all-in-one to the control air supply passes through the backpressure that electric proportional valve applyed to the pressure regulating valve, realizes the purpose of the rated pressure of control air-vent valve, controls the pressure of the interior hydraulic oil of gas cylinder connection group then.
Further limit, a quick joint B with a one-way valve is arranged between the liquid outlet of each gas-liquid booster pump and the gas cylinder connecting group. Such structural design, when overhauing arbitrary one gas-liquid booster pump, can directly open the quick-operation joint B who takes the check valve that the gas-liquid booster pump corresponds, can cut the pipeline that the gas-liquid booster pump corresponds, when needing to use, the corresponding quick-operation joint B who takes the check valve of intercommunication again can, convenient to use.
Further inject, industry control all-in-one machine is signal connection has temperature transmitter still, temperature transmitter installs on the gas cylinder connection group. Due to the structural design, the temperature of the outer wall of the gas cylinder in the gas cylinder connecting set is monitored in real time through the temperature transmitter and fed back to the industrial control all-in-one machine, so that accidents such as explosion and the like caused by overhigh temperature of the gas cylinder after long-time use are avoided.
Further inject, the entry end of hydraulic pump is connected with the oil tank, be equipped with filter, level gauge, thermometer and cooler in the oil tank, the filter is installed between oil tank and hydraulic pump, level gauge, thermometer and cooler and industrial control all-in-one signal connection. Such structural design, accessible filter come to the hydraulic oil that gets into in the hydraulic pump, detect the residual oil mass in the oil tank through the level gauge, carry out real-time temperature through the thermometer to the hydraulic oil in the oil tank and detect, cool down through the cooler to hydraulic oil.
Further limit, a quick connector C with a one-way valve is respectively arranged between the hydraulic pump and the liquid inlet of each gas-liquid booster pump. Such structural design, the hydraulic pump is through the quick-operation joint C who takes the check valve and the inlet intercommunication of each gas-liquid booster pump, damages the back at arbitrary gas-liquid booster pump, can directly carry out the split to quick-operation joint C to cut the pipeline that the gas-liquid booster pump that damages corresponds, convenient to use.
Further limit, an overflow valve is further installed on a pipeline between the hydraulic pump and the gas-liquid booster pump. The pressure of the hydraulic oil entering the gas-liquid booster pump is limited through the overflow valve by the structural design, and the pressure stabilizing effect is achieved.
The invention adopting the technical scheme has the advantages that:
1. the hydraulic oil is pressurized by the plurality of gas-liquid booster pumps connected in parallel, so that the pressurizing speed is increased, and the equipment purchase cost is reduced compared with equipment capable of pressurizing hydraulic oil at one time in a large flow;
2. the hydraulic oil pumped out by the hydraulic pump is secondarily pressurized by the plurality of gas-liquid booster pumps, so that the power requirement of a motor of the hydraulic pump is greatly reduced, the requirement on a power line is also greatly reduced, 220V voltage can be used under the action of a frequency converter, and the requirement on the environment is low and the adaptability is strong;
3. the plurality of gas-liquid booster pumps are connected in parallel and do not influence each other, so that even if one of the gas-liquid booster pumps is damaged in the use process, the experimental effect is not influenced, and the adaptability is strong;
4. all install a quick-operation joint B who takes the check valve between the liquid outlet and the gas cylinder connection group through each gas-liquid booster pump for when overhauing arbitrary gas-liquid booster pump, can directly open the quick-operation joint B who takes the check valve that the gas-liquid booster pump corresponds, can cut the pipeline that the gas-liquid booster pump corresponds, when needs use, the corresponding quick-operation joint B who takes the check valve of intercommunication again can, convenient to use.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural diagram of an embodiment of a dual-power-source gas cylinder fatigue test device of the present invention;
the main element symbols are as follows:
a hydraulic pump 1, an oil tank 11, a filter 12, a liquid level meter 13, a thermometer 14, a cooler 15, an overflow valve 16,
An industrial control integrated machine 2, a temperature transmitter 21, a gas-liquid booster pump 3,
A quick joint A41, a quick joint B42, a quick joint C43,
An air source 5, an electromagnetic directional valve 6, a pressure transmitter 71, a pressure regulating valve 72 and an electric proportional valve 720;
in the figure, solid lines represent pipes, and broken lines represent power supply lines or signal lines.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.
As shown in fig. 1, the dual-power-source gas cylinder fatigue testing device comprises a hydraulic pump 1, an industrial control all-in-one machine 2, a gas cylinder connecting set and four gas-liquid booster pumps 3, wherein each gas-liquid booster pump 3 comprises a liquid inlet, a liquid outlet and a gas inlet, the liquid inlets of the gas-liquid booster pumps 3 are communicated with the hydraulic pump 1, the liquid outlets of the gas-liquid booster pumps 3 are communicated with the gas cylinder connecting set, the gas cylinder connecting set comprises a plurality of parallel quick connectors a41 with check valves, the gas inlets of the gas-liquid booster pumps 3 are connected with a gas source 5, an electromagnetic reversing valve 6 is installed between each gas-liquid booster pump 3 and the gas source 5, the gas cylinder connecting set is further connected with a pressure transmitter 71 and a pressure regulating valve 72, and the.
The four gas-liquid booster pumps 3 in this embodiment are different in boosting ratio. The maximum pressurizing speed and efficiency can be ensured according to different numbers and testing pressures of the tested gas cylinders 10.
The pressure regulating valve 72 is connected with an electric proportional valve 720, the electric proportional valve 720 is communicated with the air source 5, and the industrial control all-in-one machine 2 is in signal connection with the electric proportional valve 720. The electric proportional valve 720 is controlled through the industrial control all-in-one machine 2, so that the purpose of controlling the rated pressure of the pressure regulating valve is realized by controlling the back pressure applied to the pressure regulating valve 72 by the air source 5 through the electric proportional valve 720, and then the pressure of hydraulic oil in the air bottle connecting set is controlled.
A quick joint B42 with a one-way valve is arranged between the liquid outlet of each gas-liquid booster pump 3 and the gas cylinder connecting set. When any one gas-liquid booster pump 3 is overhauled, the quick coupling B42 with the one-way valve corresponding to the gas-liquid booster pump 3 can be directly opened, the pipeline corresponding to the gas-liquid booster pump 3 can be cut off, and when the gas-liquid booster pump needs to be used, the corresponding quick coupling B42 with the one-way valve is communicated, so that the gas-liquid booster pump is convenient to use.
The industrial control integrated machine 2 is further connected with a temperature transmitter 21 through signals, and the temperature transmitter 21 is installed on the gas cylinder connecting group. The temperature of the outer wall of the gas cylinder 10 in the gas cylinder connecting group is monitored in real time through the temperature transmitter 21 and fed back to the industrial control all-in-one machine 2, so that accidents such as explosion and the like caused by overhigh temperature after the gas cylinder 10 is used for a long time are avoided.
An oil tank 11 is connected to the inlet end of the hydraulic pump 1, a filter 12, a liquid level meter 13, a thermometer 14 and a cooler 15 are arranged in the oil tank 11, the filter 12 is installed between the oil tank 11 and the hydraulic pump 1, and the liquid level meter 13, the thermometer 14, the cooler 15 and the industrial control all-in-one machine 2 are in signal connection. The hydraulic oil entering the hydraulic pump 1 can be fed through the filter 12, the residual oil amount in the oil tank 11 is detected through the liquid level meter 13, the real-time temperature detection is carried out on the hydraulic oil in the oil tank 11 through the thermometer 14, and the cooling is carried out on the hydraulic oil through the cooler 15.
And a quick joint C43 with a one-way valve is respectively arranged between the hydraulic pump 1 and the liquid inlet of each gas-liquid booster pump 3. The hydraulic pump 1 is communicated with the liquid inlet of each gas-liquid booster pump 3 through the quick connector C43 with the one-way valve, after any one gas-liquid booster pump 3 is damaged, the quick connector C43 can be directly split, and therefore the pipeline corresponding to the damaged gas-liquid booster pump 3 is cut off, and the hydraulic pump is convenient to use.
An overflow valve 16 is also arranged on a pipeline between the hydraulic pump 1 and the gas-liquid booster pump 3. The overflow valve 16 limits the pressure of the hydraulic oil entering the gas-liquid booster pump 3 and plays a role in stabilizing the pressure.
In the embodiment, when the gas cylinder pressure gauge is used, the gas cylinder 10 to be detected is connected through the quick connector A41 with the one-way valve, the industrial control integrated machine 2 is used for controlling the hydraulic pump 1 to operate, and meanwhile, the electromagnetic directional valve 6 is controlled to move to the right traveling position, so that the gas source 5 is communicated with the gas inlet of the gas-liquid booster pump 3, at the moment, the gas-liquid booster pump 3 boosts the hydraulic oil pumped out by the hydraulic pump 1, and the pressure of the hydraulic oil in the gas cylinder 10 is increased to reach the test pressure;
after the testing pressure is reached, the pressure of the redundant hydraulic oil is discharged through the pressure regulating valve 72, the pressure is maintained for a certain time, the pressure maintaining time is carried out, the calculation is started when the pressure of the hydraulic oil in the gas cylinder 10 detected by the pressure transmitter 71 reaches the detection pressure, and after the pressure maintaining is finished, the electric proportional valve 720 is controlled through the industrial and control integrated machine 2, so that the back pressure applied to the pressure regulating valve 72 by the gas source 5 through the electric proportional valve 720 is controlled, the back pressure is reduced, at the moment, the hydraulic oil in the gas cylinder 10 flows back to the oil cylinder through the pressure regulating valve 72 under the action of the pressure, the pressure relief is completed, and the pressure;
after the pressure relief is finished, the back pressure of the pressure regulating valve 72 is increased again, and the gas-liquid booster pump 3 boosts the gas cylinder 10 again;
repeating the above processes to realize multiple pressurizing-depressurizing processes for the gas cylinder 10, and completing the fatigue test for the gas cylinder.
The double-power-source gas cylinder fatigue experimental device provided by the invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a gas cylinder fatigue test device of double dynamical source which characterized in that: comprises a hydraulic pump (1), an industrial control all-in-one machine (2), a gas cylinder connecting set and a plurality of gas-liquid booster pumps (3), the gas-liquid booster pump (3) comprises a liquid inlet, a liquid outlet and a gas inlet, the liquid inlet of the gas-liquid booster pump (3) is communicated with the hydraulic pump (1), the liquid outlet of the gas-liquid booster pump (3) is communicated with a gas cylinder connecting group, the gas cylinder connecting group comprises a plurality of quick connectors A (41) which are connected in parallel and provided with one-way valves, an air inlet of the gas-liquid booster pump (3) is connected with an air source (5), an electromagnetic directional valve (6) is arranged between the gas-liquid booster pump (3) and the air source (5), the gas cylinder connecting set is also connected with a pressure transmitter (71) and a pressure regulating valve (72), the industrial control integrated machine (2) is in signal connection with the hydraulic pump (1), the electromagnetic directional valve (6) and the pressure transmitter (71) respectively.
2. The dual-power-source gas cylinder fatigue testing device as claimed in claim 1, characterized in that: the pressurization proportion of the plurality of gas-liquid booster pumps (3) is different.
3. The dual-power-source gas cylinder fatigue testing device as claimed in claim 1, characterized in that: the pressure regulating valve (72) is connected with an electric proportional valve (720), the electric proportional valve (720) is communicated with an air source (5), and the industrial control all-in-one machine (2) is in signal connection with the electric proportional valve (720).
4. The dual-power-source gas cylinder fatigue testing device as claimed in claim 1, characterized in that: and a quick joint B (42) with a one-way valve is arranged between the liquid outlet of each gas-liquid booster pump (3) and the gas cylinder connecting group.
5. The dual-power-source gas cylinder fatigue testing device as claimed in claim 1, characterized in that: the industrial control integrated machine (2) is further connected with a temperature transmitter (21) through signals, and the temperature transmitter (21) is installed on the gas cylinder connecting set.
6. The dual-power-source gas cylinder fatigue testing device as claimed in claim 1, characterized in that: the inlet end of the hydraulic pump (1) is connected with an oil tank (11), a filter (12), a liquid level meter (13), a thermometer (14) and a cooler (15) are arranged in the oil tank (11), the filter (12) is installed between the oil tank (11) and the hydraulic pump (1), and the liquid level meter (13), the thermometer (14), the cooler (15) and the industrial control all-in-one machine (2) are in signal connection.
7. The dual-power-source gas cylinder fatigue testing device as claimed in claim 1, characterized in that: and a quick connector C (43) with a one-way valve is respectively arranged between the hydraulic pump (1) and the liquid inlet of each gas-liquid booster pump (3).
8. The dual-power-source gas cylinder fatigue testing device as claimed in claim 1, characterized in that: and an overflow valve (16) is also arranged on a pipeline between the hydraulic pump (1) and the gas-liquid booster pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010935279.8A CN112082794A (en) | 2020-09-08 | 2020-09-08 | Double-power-source gas cylinder fatigue experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010935279.8A CN112082794A (en) | 2020-09-08 | 2020-09-08 | Double-power-source gas cylinder fatigue experiment device |
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| Publication Number | Publication Date |
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| CN112082794A true CN112082794A (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010935279.8A Pending CN112082794A (en) | 2020-09-08 | 2020-09-08 | Double-power-source gas cylinder fatigue experiment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309689A (en) * | 2021-06-11 | 2021-08-27 | 宜兴市恒安封头有限公司 | Double-medium pressurization system suitable for end socket air tightness detection |
-
2020
- 2020-09-08 CN CN202010935279.8A patent/CN112082794A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309689A (en) * | 2021-06-11 | 2021-08-27 | 宜兴市恒安封头有限公司 | Double-medium pressurization system suitable for end socket air tightness detection |
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