CN216789872U - Gas cylinder leakage quantity testing device - Google Patents
Gas cylinder leakage quantity testing device Download PDFInfo
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- CN216789872U CN216789872U CN202220507947.1U CN202220507947U CN216789872U CN 216789872 U CN216789872 U CN 216789872U CN 202220507947 U CN202220507947 U CN 202220507947U CN 216789872 U CN216789872 U CN 216789872U
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- lower sleeve
- top nozzle
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Abstract
The utility model discloses a gas cylinder leakage testing device which comprises an upper sleeve, a lower sleeve and a top nozzle, wherein the upper sleeve is connected with the lower sleeve in a matching way, and a test gas cylinder is arranged in a cavity formed by the upper sleeve and the lower sleeve; the top nozzle is detachably connected to the lower sleeve, one end of the top nozzle is positioned in the lower sleeve and is connected with the bottom of the test gas cylinder in a jacking mode, and the nozzle at the upper end of the test gas cylinder is fixed on the upper sleeve; the top nozzle is provided with an air duct communicated with a cavity formed by the upper sleeve and the lower sleeve; the air passage comprises a central passage and vent holes, the vent holes are distributed on the top nozzle positioned in the lower sleeve, and the vent holes are communicated with the central passage. According to the utility model, the test gas cylinder is hermetically wrapped and fixed through the upper sleeve, the lower sleeve and the top nozzle, and a corresponding detection interface, namely the top nozzle, is reserved, so that a detection device can conveniently collect all leakage media of the test gas cylinder; the gas cylinder leakage detection device is simple in structure, easy to process, low in processing cost and convenient to use and operate, and completely meets the requirement for detecting the integral leakage amount of the gas cylinder.
Description
Technical Field
The utility model belongs to the technical field of gas cylinder testing, and particularly relates to a gas cylinder leakage testing device.
Background
The gas cylinder is used as a movable gas source and is used for storing gas with certain pressure in the using process, and the gas cylinder has the characteristics of safety, reliability and the like. In the fields of aerospace and the like, stricter requirements are put forward on the use of the gas cylinder, and the gas cylinder is required to have high pressure bearing capacity and low leakage amount during long-term storage. For this purpose, test requirements for helium mass spectrometer leak detection are set forth. The test requirement is that the helium gas which is easy to leak is used as a medium, the whole leakage amount of the gas cylinder is detected with high precision, and after the gas cylinder is filled with the helium gas with specified pressure, the whole leakage amount of the gas cylinder is required not to exceed the specified value of the technical requirement. There are also relevant standard requirements for helium mass spectrometric detection. In order to ensure that the whole leakage amount of the gas cylinder can be detected according to the technical requirements, a gas cylinder leakage amount testing device needs to be designed so as to complete the detection of the whole leakage amount of the gas cylinder.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model makes up the defects of the prior art and provides a gas cylinder leakage quantity testing device.
In order to achieve the purpose, the utility model adopts the following technical scheme.
The utility model relates to a gas cylinder leakage rate testing device which comprises an upper sleeve, a lower sleeve and a top nozzle, wherein the upper sleeve is connected with the lower sleeve in a matching way, and a test gas cylinder is arranged in a cavity formed by the upper sleeve and the lower sleeve; the top nozzle is detachably connected to the lower sleeve, one end of the top nozzle is positioned in the lower sleeve and is connected with the bottom of the test gas cylinder in a jacking mode, and the nozzle at the upper end of the test gas cylinder is fixed on the upper sleeve; the top nozzle is provided with an air duct communicated with a cavity formed by the upper sleeve and the lower sleeve.
In a preferred embodiment of the present invention, the top nozzle is a tubular structure.
As another preferable scheme of the utility model, the top nozzle of the tubular structure is provided with an air duct, the air duct comprises a central channel and vent holes, the vent holes are distributed on the top nozzle positioned in the lower sleeve, and the vent holes are communicated with the central channel.
As another preferred scheme of the utility model, the upper sleeve is provided with an upper nozzle and an upper connecting disc, and the lower sleeve is provided with a lower nozzle and a lower connecting disc; the bottle mouth at the upper end of the test gas bottle is connected with the upper connecting mouth of the upper sleeve in a matching way, and the top mouth is connected with the lower connecting mouth of the lower sleeve in a matching way; the upper connecting disc of the upper sleeve is fixedly connected with the lower connecting disc of the lower sleeve through bolts.
As another preferable scheme of the utility model, a sealing ring is arranged at the joint of the upper connecting nozzle of the upper sleeve and the cylinder nozzle at the upper end of the test gas cylinder, a sealing ring is arranged at the joint of the lower connecting nozzle of the lower sleeve and the top nozzle, and a sealing ring is arranged at the joint of the upper connecting disc of the upper sleeve and the lower connecting disc of the lower sleeve.
As another preferable scheme of the utility model, the top nozzle upper and lower nozzles of the lower sleeve are both provided with mutually matched threads, and the top nozzle is in threaded connection with the lower nozzle of the lower sleeve.
The utility model has the beneficial effects that:
according to the gas cylinder leakage rate testing device provided by the utility model, the testing gas cylinder is hermetically wrapped and fixed through the upper sleeve, the lower sleeve and the top nozzle, and the corresponding detection interface, namely the top nozzle, is reserved, so that the detecting device can conveniently collect all leakage media of the testing gas cylinder; the gas cylinder leakage detection device is simple in structure, easy to process, low in processing cost and convenient to use and operate, and completely meets the requirement for detecting the integral leakage amount of the gas cylinder.
Drawings
Fig. 1 is a schematic perspective view of a gas cylinder leakage amount testing device according to the present invention.
Fig. 2 is a schematic sectional structural view of a gas cylinder leakage testing device of the utility model.
The labels in the figure are: 1 is a bottle mouth, 2 is an upper joint mouth, 3 is an upper sleeve, 4 is an upper connecting disc, 5 is a bolt, 6 is a lower connecting disc, 7 is a lower sleeve, 8 is a lower joint mouth, 9 is a top mouth, 10 is a vent hole, 11 is a sealing ring, 12 is a test gas bottle, and 13 is a thread.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 and 2, the utility model provides a gas cylinder leakage rate testing device, which comprises an upper sleeve 3, a lower sleeve 7 and a top nozzle 9, wherein the upper sleeve 3 is connected with the lower sleeve 7 in a matching manner, and a test gas cylinder 12 is arranged in a cavity formed by the upper sleeve 3 and the lower sleeve 7; the top nozzle 9 is detachably connected to the lower sleeve 7, one end of the top nozzle 9 is positioned in the lower sleeve 7 and is connected with the bottom of the test gas cylinder 12 in a jacking mode, and the nozzle 1 at the upper end of the test gas cylinder 12 is fixed on the upper sleeve 3; the top nozzle 9 is provided with an air duct communicated with a cavity formed by the upper sleeve 3 and the lower sleeve 7.
The top nozzle 9 is of a tubular structure, the air passage comprises a central channel and vent holes 10, the vent holes 10 are distributed on the top nozzle 9 positioned in the lower sleeve 7, and the vent holes 10 are communicated with the central channel; the upper sleeve 3 is provided with an upper nozzle 2 and an upper connecting disc 4, and the lower sleeve 7 is provided with a lower nozzle 8 and a lower connecting disc 6; a bottle mouth 1 at the upper end of a test gas bottle 12 is connected with an upper connector 2 of an upper sleeve 3 in a matching way, and a top mouth 9 is connected with a lower connector 8 of a lower sleeve 7 in a matching way; the upper connecting disc 4 of the upper sleeve 3 is fixedly connected with the lower connecting disc 6 of the lower sleeve 7 through a bolt 5.
A sealing ring 11 is arranged at the joint of the upper nozzle 2 of the upper sleeve 3 and the nozzle 1 at the upper end of the test gas cylinder 12, and specifically, as shown in fig. 2, two sealing grooves for clamping and fixing the sealing ring 11 are arranged on the inner side of the upper nozzle 2 of the upper sleeve 3. A sealing ring 11 is arranged at the joint of the lower nozzle 8 and the top nozzle 9 of the lower sleeve 7, and specifically, as shown in fig. 2, two sealing grooves for clamping and fixing the sealing ring 11 are arranged on the outer side of the top nozzle 9. A sealing ring 11 is arranged at the joint of the upper connecting disc 4 of the upper sleeve 3 and the lower connecting disc 6 of the lower sleeve 7, and specifically, as shown in fig. 2, a sealing groove for clamping and fixing the sealing ring 11 is arranged on the lower connecting disc 6 of the lower sleeve 7.
The upper and lower sleeve 7 of top mouth 9 all is provided with screw thread 13 of mutually supporting on the lower mouth 8, is connected through screw thread 13 between the lower mouth 8 of top mouth 9 and lower sleeve 7, has realized the dismantlement and the installation between top mouth 9 and the lower sleeve 7.
The assembly and use process of the utility model is explained by combining the technical scheme of the utility model and the attached drawings: when a test gas cylinder 12 needs to be tested, firstly, a cylinder mouth 1 at the upper end of the test gas cylinder 12 is inserted into an upper connector 2 of an upper sleeve 3, and a sealing ring 11 is installed for sealing; then a sealing groove on a lower connecting disc 6 of a lower sleeve 7 is filled with a matched sealing ring and is fixed with the upper sleeve 3 through a bolt 5; and finally, screwing the top nozzle 9 with the threads 13 and the sealing ring 11 into the lower nozzle 8 of the lower sleeve 7, and propping against the bottom of the test gas cylinder 12 to fix the test gas cylinder 12. Helium is introduced into a test gas cylinder 12 through a cylinder nozzle 1, a helium detection device is installed at a top nozzle 9, if a helium leakage phenomenon occurs, leaked helium flows out through a vent hole 10 and a central channel on the top nozzle 9, and the helium content can be detected through the helium detection device.
According to the utility model, the test gas cylinder 12 is hermetically wrapped and fixed through the upper sleeve 3, the lower sleeve 7 and the top nozzle 9, and the corresponding detection interface, namely the top nozzle 9 is reserved, so that a detection device can conveniently collect all leakage media of the test gas cylinder 12, and a special detection device (such as a special helium mass spectrometer leak detector) is adopted to quantitatively detect gas flowing out of the detection interface, namely the top nozzle 9, so as to determine whether the whole leakage amount of the test gas cylinder 12 meets the relevant technical requirements.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the utility model.
Claims (6)
1. The utility model provides a gas cylinder leaks leakage quantity testing arrangement which characterized in that: the gas cylinder testing device comprises an upper sleeve, a lower sleeve and a top nozzle, wherein the upper sleeve is connected with the lower sleeve in a matching way, and a testing gas cylinder is arranged in a cavity formed by the upper sleeve and the lower sleeve; the top nozzle is detachably connected to the lower sleeve, one end of the top nozzle is positioned in the lower sleeve and is connected with the bottom of the test gas cylinder in a jacking mode, and the nozzle at the upper end of the test gas cylinder is fixed on the upper sleeve; the top nozzle is provided with an air duct communicated with a cavity formed by the upper sleeve and the lower sleeve.
2. A gas cylinder leakage test device according to claim 1, characterized in that: the top nozzle is of a tubular structure.
3. A gas cylinder leakage test device according to claim 2, characterized in that: the top nozzle of the tubular structure is provided with an air passage, the air passage comprises a central channel and air holes, the air holes are distributed on the top nozzle positioned in the lower sleeve, and the air holes are communicated with the central channel.
4. A gas cylinder leakage test device according to claim 1, characterized in that: the upper sleeve is provided with an upper joint nozzle and an upper connecting disc, and the lower sleeve is provided with a lower joint nozzle and a lower connecting disc; the cylinder mouth at the upper end of the test gas cylinder is connected with the upper connector of the upper sleeve in a matching way, and the top mouth is connected with the lower connector of the lower sleeve in a matching way; the upper connecting disc of the upper sleeve is fixedly connected with the lower connecting disc of the lower sleeve through bolts.
5. A gas cylinder leakage test device according to claim 4, characterized in that: the sealing ring is arranged at the joint of the upper connecting nozzle of the upper sleeve and the bottle mouth at the upper end of the test gas bottle, the sealing ring is arranged at the joint of the lower connecting nozzle of the lower sleeve and the top mouth, and the sealing ring is arranged at the joint of the upper connecting disc of the upper sleeve and the lower connecting disc of the lower sleeve.
6. A gas cylinder leakage test device according to claim 4, characterized in that: the lower nozzles of the upper and lower sleeves of the top nozzle are provided with mutually matched threads, and the top nozzle is connected with the lower nozzle of the lower sleeve through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220507947.1U CN216789872U (en) | 2022-03-09 | 2022-03-09 | Gas cylinder leakage quantity testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220507947.1U CN216789872U (en) | 2022-03-09 | 2022-03-09 | Gas cylinder leakage quantity testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216789872U true CN216789872U (en) | 2022-06-21 |
Family
ID=82000254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220507947.1U Active CN216789872U (en) | 2022-03-09 | 2022-03-09 | Gas cylinder leakage quantity testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216789872U (en) |
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2022
- 2022-03-09 CN CN202220507947.1U patent/CN216789872U/en active Active
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