CN211042924U - Pressure resistance test system for large container - Google Patents
Pressure resistance test system for large container Download PDFInfo
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- CN211042924U CN211042924U CN201921943749.4U CN201921943749U CN211042924U CN 211042924 U CN211042924 U CN 211042924U CN 201921943749 U CN201921943749 U CN 201921943749U CN 211042924 U CN211042924 U CN 211042924U
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Abstract
The utility model discloses a big container pressure resistance test system, including hydraulic tank, first pressure loading device and second pressure loading device, the hydraulic fluid inlet of first pressure loading device, second pressure loading device all is connected with hydraulic tank, the oil-out of first pressure loading device, second pressure loading device all is used for being connected with the oil inlet of the big container that awaits measuring, first pressure loading device's discharge capacity is greater than second pressure loading device's discharge capacity, first pressure loading device's loading pressure is less than second pressure loading device's loading pressure. The utility model provides a withstand voltage test system of big container synthesizes traditional low pressure test system and high pressure test system's advantage, can accomplish the high pressure resistant test of big container fast, high efficiency, and the power of consumption is also smaller, and the test cost is also lower.
Description
Technical Field
The utility model belongs to the technical field of withstand voltage test, concretely relates to big container withstand voltage test system.
Background
In a container pressure resistance test system, a test scheme is generally selected according to the pressure resistance value that the test system needs to achieve. For a low-pressure test system, a gear pump or a vane pump is generally selected as a loading power source, and the discharge capacity of the gear pump or the vane pump is determined according to the size of a container and the required test time, so that the system is a simpler system, can also show higher efficiency in a large container pressure resistance test, but has a lower test pressure value. For a high-pressure test system, a feasible scheme is to select a high-pressure plunger pump as a loading power source, then determine the displacement of the plunger pump according to the size of a container and the required test time, when the container is large and the test time requirement is short, the plunger pump with the large displacement must be selected to realize the displacement and the pressure of the plunger pump required by the whole system are large, and therefore, large power consumption is needed. Another possible solution is to select a gear pump as a loading power source and amplify the loading pressure by a supercharger, which has low test efficiency, when the test efficiency is improved by selecting a gear pump with a large displacement and a supercharger with a large flow rate, the power consumption of the whole system is relatively large, and the selected supercharger is expensive, resulting in high test cost.
In summary, in the related art, the system meeting the requirement of the pressure resistance test efficiency of the large container can reach a lower test pressure value; the high-pressure requirement of the large container pressure resistance test is met, the efficiency is low, or the cost for meeting the test efficiency is high, and the consumed power is high.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the above technical problems, the utility model provides a big container withstand voltage test system.
The purpose of the utility model is realized through the following technical scheme:
the large container pressure withstanding test system comprises a hydraulic oil tank, a first pressure loading device and a second pressure loading device, oil inlets of the first pressure loading device and the second pressure loading device are connected with the hydraulic oil tank, oil outlets of the first pressure loading device and the second pressure loading device are used for being connected with an oil inlet of a large container to be tested, the discharge capacity of the first pressure loading device is larger than that of the second pressure loading device, and the loading pressure of the first pressure loading device is smaller than that of the second pressure loading device.
As a further improvement, the device further comprises an isolation one-way valve, and an oil outlet of the first pressure loading device is connected with an oil inlet of the large container to be tested through the isolation one-way valve.
As a further improvement, the first pressure loading device comprises a first oil pump and a first reversing valve, an oil inlet of the first oil pump is connected with the hydraulic oil tank, the first reversing valve is arranged between an oil outlet of the first oil pump, an inlet of the isolating one-way valve and the hydraulic oil tank, and the first reversing valve is used for switching and controlling the oil outlet of the first oil pump to be respectively connected with the inlet of the isolating one-way valve or the hydraulic oil tank.
As a further improvement, the first pressure loading device comprises a first overflow valve, and an oil inlet and an overflow port of the first overflow valve are respectively connected with an oil outlet of the first oil pump and the hydraulic oil tank.
As a further improvement, the first pressure loading device comprises a first pressure gauge, and the first pressure gauge is connected with an oil outlet of the first oil pump.
As a further improvement, the second pressure loading device comprises a second oil pump, a second reversing valve and a hydraulic pressure booster, an oil inlet of the second oil pump is connected with the hydraulic oil tank, an outlet of the hydraulic pressure booster is used for being connected with an oil inlet of the large container to be tested, the second reversing valve is arranged among an oil outlet of the second oil pump, an inlet of the hydraulic pressure booster and the hydraulic oil tank, and the second reversing valve is used for switching and controlling the oil outlet of the second oil pump to be respectively connected with the inlet of the hydraulic pressure booster or the hydraulic oil tank.
As a further improvement, the second reversing valve is a three-position four-way M-shaped reversing valve, the three-position four-way M-shaped reversing valve is provided with a pressure oil port, an oil return port, a first working oil port and a second working oil port, the pressure oil port is connected with an oil outlet of the second oil pump, the oil return port is connected with a hydraulic oil tank, and the first working oil port and the second working oil port are connected with a hydraulic pressure booster.
As a further improvement, the second pressure loading device comprises a second overflow valve, and an oil inlet and an overflow port of the second overflow valve are respectively connected with an oil outlet of the second oil pump and the hydraulic oil tank.
As a further improvement, the second pressure loading device comprises a second pressure gauge, and the second pressure gauge is connected with an oil outlet of the second oil pump.
As a further improvement, the oil pump further comprises a motor which is in driving connection with the first oil pump and the second oil pump simultaneously.
The utility model provides a big container pressure resistance test system, including hydraulic tank, first pressure loading device and second pressure loading device, the hydraulic fluid inlet of first pressure loading device, second pressure loading device all is connected with hydraulic tank, the oil-out of first pressure loading device, second pressure loading device all is used for being connected with the oil inlet of the big container that awaits measuring, first pressure loading device's discharge capacity is greater than second pressure loading device's discharge capacity, first pressure loading device's loading pressure is less than second pressure loading device's loading pressure. The utility model provides a withstand voltage test system of big container synthesizes traditional low pressure test system and high pressure test system's advantage, can accomplish the high pressure resistant test of big container fast, high efficiency, and the power of consumption is also smaller, and the test cost is also lower.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a hydraulic schematic diagram of the large container pressure resistance test system of the present invention in a standby state.
Fig. 2 is a hydraulic schematic diagram of the large container pressure resistance testing system of the present invention in a low pressure liquid-filled state.
Fig. 3 is a hydraulic schematic diagram of the large container pressure resistance testing system of the present invention in a high pressure liquid-filled state.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.
Combine fig. 1 to fig. 3 to show, the embodiment of the utility model provides a withstand voltage test system of big container, including hydraulic tank 1, first pressure loading device 2 and second pressure loading device 3, the hydraulic fluid inlet of first pressure loading device 2, second pressure loading device 3 all is connected with hydraulic tank 1, the oil-out of first pressure loading device 2, second pressure loading device 3 all is used for being connected with the oil inlet of the big container 4 that awaits measuring, the discharge capacity of first pressure loading device 2 is greater than the discharge capacity of second pressure loading device 3, the loading pressure of first pressure loading device 2 is less than the loading pressure of second pressure loading device 3.
The utility model discloses in the above-mentioned embodiment, first pressure loading device 2's oil pump can adopt big discharge capacity low pressure gear pump for the liquid charging exhaust of big container, second pressure loading device 3's oil pump can adopt little discharge capacity low pressure gear pump + booster or adopt little discharge capacity high pressure plunger pump, is used for the withstand voltage test of big container. The output pressure of the first pressure loading device 2 is low, but the output flow is large, and the large container to be detected can be filled with hydraulic oil quickly. The output flow of the second pressure loading device 3 is small, but the output pressure is high, and the pressure loading, maintaining and unloading of the tested container can be realized. The embodiment of the utility model provides a withstand voltage test system of big container synthesizes traditional low pressure test system and high-pressure test system's advantage, can accomplish the high pressure resistant test of big container fast, high efficiency, and the power of consumption is also smaller, and the test cost is also lower.
As a further preferred embodiment, the device further comprises an isolation check valve 5, an oil outlet of the first pressure loading device 2 is connected with an oil inlet of the large container to be tested 4 through the isolation check valve 5, the isolation check valve 5 adopts a high-pressure check valve, an inlet of the high-pressure check valve is connected with the oil outlet of the first pressure loading device 2, and an outlet of the high-pressure check valve is connected with an oil inlet of the large container to be tested 4. The isolating one-way valve 5 is used for separating the second pressure loading device 3 from the second pressure loading device 3, so that the influence of high pressure when the second pressure loading device 3 is loaded on the first pressure loading device 2 is avoided.
As a further preferred embodiment, the first pressure loading device 2 includes a first oil pump 21 and a first direction change valve 22, and the first oil pump 21 is a large discharge low pressure gear pump. The oil inlet of the first oil pump 21 is connected with the hydraulic oil tank 1, the first reversing valve 22 is arranged between the oil outlet of the first oil pump 21, the inlet of the isolating one-way valve 5 and the hydraulic oil tank 1, and the first reversing valve 22 is used for switching and controlling the oil outlet of the first oil pump 21 to be connected with the inlet of the isolating one-way valve 5 or the hydraulic oil tank 1 respectively. Specifically, the first reversing valve 22 is a two-position four-way reversing valve, the two-position four-way reversing valve is provided with a pressure oil port, an oil return port, a first working oil port and a second working oil port, the pressure oil port is connected with an oil outlet of the first oil pump 21, the oil return port is connected with the hydraulic oil tank 1, one of the first working oil port and the second working oil port is connected with an inlet of the isolating check valve 5, and the other one of the first working oil port and the second working oil port is connected with the hydraulic oil tank 1. When the first direction valve 22 is switched to the left position, the oil outlet of the first oil pump 21 is connected to the inlet of the isolating one-way valve 5 through the first direction valve 22, and when the first direction valve 22 is switched to the right position, the oil outlet of the first oil pump 21 is connected to the hydraulic oil tank 1 through the first direction valve 22, so that unloading of the first oil pump 21 is realized.
As a further preferred embodiment, the first pressure loading device 2 includes a first relief valve 23, and an oil inlet and an overflow port of the first relief valve 23 are respectively connected to an oil outlet of the first oil pump 21 and the hydraulic oil tank 1. The first pressure loading device 2 comprises a first pressure gauge 24, and the first pressure gauge 24 is connected with an oil outlet of the first oil pump 21. The first relief valve 23 is used to protect the first oil pump 21 from exceeding a set pressure. The first pressure gauge 24 is used for displaying an output pressure value of the first oil pump 21, and when the output pressure value reaches a preset pressure value, the first reversing valve 22 can be controlled to reverse, so that the first oil pump 21 is unloaded.
As a further preferred embodiment, the second pressure loading device 3 includes a second oil pump 31, a second direction valve 32 and a hydraulic pressure booster 33, the second oil pump 31 employs a low-displacement low-pressure gear pump with low cost, the hydraulic pressure booster 33 employs a low-flow hydraulic pressure booster, the hydraulic pressure booster 33 is used for amplifying the oil pressure output by the second oil pump 31, and the booster 33 with a suitable boosting ratio is selected, so that different highest test pressure values can be realized. An oil inlet of the second oil pump 31 is connected with the hydraulic oil tank 1, an outlet of the hydraulic pressure booster 33 is used for being connected with an oil inlet of the large container 4 to be tested, the second reversing valve 32 is arranged between an oil outlet of the second oil pump 31, an inlet of the hydraulic pressure booster 33 and the hydraulic oil tank 1, the second reversing valve 32 is used for switching and controlling the oil outlet of the second oil pump 31 to be connected with the inlet of the hydraulic pressure booster 33 or the hydraulic oil tank 1 respectively, and oil output by the second oil pump 31 is amplified in loading pressure through the hydraulic pressure booster 33.
As a further preferred embodiment, the second reversing valve 32 is a three-position four-way M-shaped reversing valve, the three-position four-way M-shaped reversing valve is provided with a pressure oil port, an oil return port, a first working oil port and a second working oil port, the pressure oil port is connected with an oil outlet of the second oil pump 31, the oil return port is connected with the hydraulic oil tank 1, and the first working oil port and the second working oil port are connected with the hydraulic pressure booster 33. The three-position four-way M-shaped reversing valve is provided with a pressure oil port, an oil return port, a first working oil port and a second working oil port. The second reversing valve has a middle position M-type function, when the second reversing valve is switched to a middle position, the pressure oil port is connected with the oil return port, and at the moment, the oil outlet of the second oil pump 31 is connected with the hydraulic oil tank 1, so that unloading of the second oil pump 31 is realized.
As a further preferred embodiment, the second pressure loading device 3 includes a second overflow valve 34, and an oil inlet and an overflow port of the second overflow valve 34 are respectively connected to an oil outlet of the second oil pump 31 and the hydraulic oil tank 1. The second pressure loading device 3 comprises a second pressure gauge 35, and the second pressure gauge 35 is connected with an oil outlet of the second oil pump 31. The second relief valve 34 serves to protect the second oil pump 31 from exceeding the set pressure. The second pressure gauge 35 is used for displaying an output pressure value of the second oil pump 31, and when the output pressure value reaches a preset pressure value, the second reversing valve 32 can be controlled to reverse, so that the second oil pump 31 is unloaded.
In a further preferred embodiment, the oil pump further comprises a motor 6, the motor 6 is preferably an electric motor, and the motor 6 is in driving connection with the first oil pump 21 and the second oil pump 31. The motor 6 drives the first oil pump 21 and the second oil pump 31 to rotate at the same time, oil inlets of the first oil pump 21 and the second oil pump 31 draw hydraulic oil from the hydraulic oil tank 1, and unloading of the first oil pump 21 and the second oil pump 31 is controlled by the first reversing valve 22 and the second reversing valve 32 respectively. In this way, two oil pumps are driven by a single motor 6, which is economical and can reduce the cost of the test system.
When adopting the embodiment of the utility model provides a when big container pressure resistance test system carries out high pressure resistance test to the big container 4 that awaits measuring, will await measuring big container 4 and place on workstation 8, the oil drain port installation ball valve 7 or the plug screw of the big container 4 that awaits measuring, the oil inlet and the export of isolating check valve 5, the exit linkage of hydraulic pressure booster 33, the test manometer 9 is connected to the oil inlet of the big container 4 that awaits measuring, motor 6 drives first oil pump 21, the operation of second oil pump 31. In the standby state, the first direction valve 22 is in the right position, the second direction valve 32 is in the middle position, and both the first oil pump 21 and the second oil pump 31 are in the unloaded state, as shown in fig. 1. When the large container is subjected to low-pressure liquid filling, the ball valve 7 is opened, the first reversing valve 22 is reversed to be in the left position, the second reversing valve 32 is still in the middle position, the first oil pump 21 extracts hydraulic oil in the hydraulic oil tank 1, the hydraulic oil is filled into the large container 4 to be measured through the first reversing valve 22 and the isolating one-way valve 5, and air in the large container 4 to be measured is discharged through the ball valve 7, which is shown in fig. 2. After the large container 4 to be tested is filled with hydraulic oil, the ball valve 7 is closed, the first reversing valve 22 is reversed to be in the right position, the second reversing valve 32 is reversed to be in the left position, the second oil pump 31 extracts the hydraulic oil in the hydraulic oil tank 1, and the hydraulic oil is filled into the large container 4 to be tested through the second reversing valve 32 and the hydraulic pressure booster 33 to carry out pressure loading, which is shown in fig. 3. When the test pressure gauge 9 displays that the loading pressure inside the large container 4 to be tested reaches a preset value, the second reversing valve 32 is reversed to be in a middle position, and the pressure of the large container 4 to be tested is maintained. After the pressure resistance test is completed, the ball valve 7 is opened to complete the pressure unloading.
In the description above, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore should not be construed as limiting the scope of the invention.
In conclusion, although the present invention has been described with reference to the preferred embodiments, it should be noted that, although various changes and modifications can be made by those skilled in the art, unless such changes and modifications depart from the scope of the present invention, they should be construed as being included therein.
Claims (10)
1. The large container pressure resistance testing system is characterized by comprising a hydraulic oil tank (1), a first pressure loading device (2) and a second pressure loading device (3), oil inlets of the first pressure loading device (2) and the second pressure loading device (3) are connected with the hydraulic oil tank (1), oil outlets of the first pressure loading device (2) and the second pressure loading device (3) are used for being connected with an oil inlet of a large container (4) to be tested, the discharge capacity of the first pressure loading device (2) is larger than that of the second pressure loading device (3), and the loading pressure of the first pressure loading device (2) is smaller than that of the second pressure loading device (3).
2. The large vessel pressure resistance test system according to claim 1, wherein: the oil outlet of the first pressure loading device (2) is connected with the oil inlet of the large container (4) to be tested through the isolation one-way valve (5).
3. The large vessel pressure resistance test system according to claim 2, wherein: the first pressure loading device (2) comprises a first oil pump (21) and a first reversing valve (22), an oil inlet of the first oil pump (21) is connected with the hydraulic oil tank (1), the first reversing valve (22) is arranged between an oil outlet of the first oil pump (21), an inlet of the isolating one-way valve (5) and the hydraulic oil tank (1), and the first reversing valve (22) is used for switching and controlling the oil outlet of the first oil pump (21) to be connected with the inlet of the isolating one-way valve (5) or the hydraulic oil tank (1) respectively.
4. The large vessel pressure withstanding testing system of claim 3 wherein: the first pressure loading device (2) comprises a first overflow valve (23), and an oil inlet and an overflow port of the first overflow valve (23) are respectively connected with an oil outlet of the first oil pump (21) and the hydraulic oil tank (1).
5. The large vessel pressure withstanding testing system of claim 3 wherein: the first pressure loading device (2) comprises a first pressure gauge (24), and the first pressure gauge (24) is connected with an oil outlet of the first oil pump (21).
6. The large vessel pressure withstanding testing system of claim 3 wherein: the second pressure loading device (3) comprises a second oil pump (31), a second reversing valve (32) and a hydraulic pressure booster (33), an oil inlet of the second oil pump (31) is connected with the hydraulic oil tank (1), an outlet of the hydraulic pressure booster (33) is used for being connected with an oil inlet of a large container (4) to be tested, the second reversing valve (32) is arranged between an oil outlet of the second oil pump (31), an inlet of the hydraulic pressure booster (33) and the hydraulic oil tank (1), and the second reversing valve (32) is used for switching and controlling the oil outlet of the second oil pump (31) to be connected with the inlet of the hydraulic pressure booster (33) or the hydraulic oil tank (1) respectively.
7. The large vessel pressure resistance test system according to claim 6, wherein: the second reversing valve (32) is a three-position four-way M-shaped reversing valve, the three-position four-way M-shaped reversing valve is provided with a pressure oil port, an oil return port, a first working oil port and a second working oil port, the pressure oil port is connected with an oil outlet of the second oil pump (31), the oil return port is connected with the hydraulic oil tank (1), and the first working oil port and the second working oil port are connected with the hydraulic supercharger (33).
8. The large vessel pressure resistance test system according to claim 6, wherein: the second pressure loading device (3) comprises a second overflow valve (34), and an oil inlet and an overflow port of the second overflow valve (34) are respectively connected with an oil outlet of the second oil pump (31) and the hydraulic oil tank (1).
9. The large vessel pressure resistance test system according to claim 6, wherein: the second pressure loading device (3) comprises a second pressure gauge (35), and the second pressure gauge (35) is connected with an oil outlet of the second oil pump (31).
10. The large vessel pressure resistance test system according to any one of claims 6 to 9, wherein: the oil pump further comprises a motor (6), and the motor (6) is simultaneously in driving connection with the first oil pump (21) and the second oil pump (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921943749.4U CN211042924U (en) | 2019-11-12 | 2019-11-12 | Pressure resistance test system for large container |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921943749.4U CN211042924U (en) | 2019-11-12 | 2019-11-12 | Pressure resistance test system for large container |
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| CN211042924U true CN211042924U (en) | 2020-07-17 |
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| CN201921943749.4U Active CN211042924U (en) | 2019-11-12 | 2019-11-12 | Pressure resistance test system for large container |
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| CN (1) | CN211042924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702198A (en) * | 2021-11-01 | 2021-11-26 | 山东宏丰海洋石油装备有限公司 | Hydrostatic pressure test method for coiled tubing |
-
2019
- 2019-11-12 CN CN201921943749.4U patent/CN211042924U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702198A (en) * | 2021-11-01 | 2021-11-26 | 山东宏丰海洋石油装备有限公司 | Hydrostatic pressure test method for coiled tubing |
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