CN218895272U - Compressed gas filling detection device - Google Patents
Compressed gas filling detection device Download PDFInfo
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- CN218895272U CN218895272U CN202120364472.0U CN202120364472U CN218895272U CN 218895272 U CN218895272 U CN 218895272U CN 202120364472 U CN202120364472 U CN 202120364472U CN 218895272 U CN218895272 U CN 218895272U
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- interface
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- compressed gas
- recovery
- detection device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
The utility model relates to a compressed gas filling detection device which comprises a four-way joint, wherein four interfaces of the four-way joint are a detection interface, an air inlet interface, a recovery interface and a gas cylinder interface respectively, the gas cylinder interface is used for being connected with a gas cylinder to be detected, the detection interface is connected with a pressure gauge, and the detection interface is also connected with a vacuum pump; the air inlet interface is connected with a compressed gas conveying pipe; the recovery interface is connected with the gas recovery assembly. The utility model has reasonable structural design, can not only supplement the air bottle which is not fully filled when detecting the air bottle, but also recycle the air of the super-filled air bottle, and is convenient to use.
Description
Technical field:
the utility model relates to a compressed gas filling detection device.
The background technology is as follows:
it is known to detect each cylinder after the compressed gas has been filled to see if there are under-filled or over-filled cylinders. For the gas cylinders which are not filled, the gas cylinders need to be transported to a filling station again for filling, so that time is wasted, and transportation cost is increased; for overfilling gas cylinders, the current treatment is direct discharge, which not only wastes gas product, but can also affect the health of field operators.
The utility model comprises the following steps:
the utility model aims at improving the problems in the prior art, namely the technical problem to be solved by the utility model is to provide a compressed gas filling detection device which is reasonable in design and convenient for filling the insufficient gas cylinder and recovering the excessive gas.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the compressed gas filling detection device comprises a four-way joint, wherein four interfaces of the four-way joint are a detection interface, an air inlet interface, a recovery interface and a gas cylinder interface respectively, the gas cylinder interface is used for being connected with a gas cylinder to be detected, the detection interface is connected with a pressure gauge, and the detection interface is also connected with a vacuum pump; the air inlet interface is connected with a compressed gas conveying pipe; the recovery interface is connected with the gas recovery assembly.
Further, the air inlet interface is provided with an air inlet control valve; the recovery interface is provided with an exhaust control valve.
Further, the gas recovery assembly comprises a buffer gas tank, one end of the buffer gas tank is provided with an air inlet hole, the other end of the buffer gas tank is provided with an air outlet hole, the air inlet hole is connected with a recovery interface, and the air outlet hole is connected with a recovery gas cylinder through a transition pipe.
Further, the diameter of the buffer gas tank is larger than that of the transition pipe.
Further, a first control valve for connecting a vacuum pump is arranged on the buffer gas tank.
Further, a second control valve is arranged on a pipeline connected with the vacuum pump through the detection interface.
Further, the compressed gas conveying pipe is connected with a compressed gas source, and a third control valve used for being connected with a vacuum pump is arranged on the compressed gas conveying pipe.
Further, the gas cylinder detection device further comprises a supporting seat for placing the gas cylinder to be detected, and an electronic scale for measuring the weight of the gas cylinder to be detected is arranged on the supporting seat.
Compared with the prior art, the utility model has the following effects: the utility model has reasonable structural design, can not only supplement the air bottle which is not fully filled when detecting the air bottle, but also recycle the air of the super-filled air bottle, and is convenient to use.
Description of the drawings:
fig. 1 is a schematic diagram of a front view configuration of an embodiment of the present utility model.
The specific embodiment is as follows:
the utility model will be described in further detail with reference to the drawings and the detailed description.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1, the compressed gas filling detection device of the utility model comprises a four-way joint 1, wherein four interfaces of the four-way joint are a detection interface 101, an air inlet interface 102, a recovery interface 103 and a gas cylinder interface 104 respectively, the gas cylinder interface 104 is used for being connected with a gas cylinder 2 to be detected, the detection interface 101 is connected with a pressure gauge 3, and the detection interface 101 is also connected with a vacuum pump 4; the air inlet interface 102 is connected with a compressed gas delivery pipe 5; the recovery interface 103 is connected to the gas recovery module 6. Before use, the four-way joint 1 is vacuumized through the vacuum pump 4, when the gas cylinder 2 to be detected is communicated with the four-way joint 1, the pressure value on the pressure gauge 3 is approximate to the pressure value of the gas cylinder 2 to be detected, namely, a worker can quickly judge that the gas cylinder to be detected is under-filled, just filled or over-filled by comparing the pressure on the pressure gauge with the normal working pressure of the gas cylinder; if the filling is insufficient, the filling is carried out by the compressed gas conveying pipe; if the filling is excessive, the redundant gas is recovered through the gas recovery component.
In this embodiment, for convenience in control, the air inlet interface 102 is provided with an air inlet control valve 7 for controlling on-off of air inlet; the recovery interface 103 is provided with an exhaust control valve 8 for controlling the on-off of exhaust.
In this embodiment, the gas recovery assembly 6 includes a buffer gas tank 601, one end of the buffer gas tank 601 is provided with a gas inlet hole, the other end is provided with a gas outlet hole, the gas inlet hole is connected with the recovery port 103, and the gas outlet hole is connected with the recovery gas bottle 603 via a transition pipe 602; the buffer tank 601 is provided with a first control valve 9 for connecting the vacuum pump 4. When the redundant gas in the gas cylinder 2 to be detected needs to be recovered, the vacuum pump 4 firstly vacuumizes the gas recovery component 6, then opens the valve of the gas recovery cylinder 603 and the exhaust control valve 8, and compressed gas in the gas cylinder 2 to be detected enters the gas recovery cylinder 603 after passing through the buffer gas cylinder 601 and the transition pipe 602 under the action of pressure; when the pressure value on the pressure gauge 3 is the normal working pressure of the gas cylinder, the exhaust control valve 8 is closed, and gas recovery is realized.
In this embodiment, the buffer gas tank 601 and the transition pipe 602 are made of 316 stainless steel materials with good corrosion resistance and strength, so that the buffer gas tank and the transition pipe can bear the impact force of compressed gas, and the safety of the whole device is improved.
In this embodiment, the diameter of the buffer gas tank 601 is larger than the diameter of the transition pipe 602, and the length of the transition pipe is larger than the length of the buffer gas tank; the diameter difference, the length difference and the formed volume difference of the buffer gas tank and the transition pipe form a gas pressure difference in the device to control the flow of gas, so that the existence of multi-stage step pressure difference in the whole recovery process ensures that excessive gas filled excessively can be smoothly conveyed, and simultaneously the transition pipe can bear the pressure of the gas.
In this embodiment, the components connected with the four interfaces of the four-way connector 1 are all in sealed connection, the transition pipe and the recovery gas cylinder are also in sealed connection, and these specific sealed connection technologies belong to the existing mature technical means, and the connection modes are not repeated here.
In this embodiment, a second control valve 10 is installed on a pipeline connected to the vacuum pump 4 through the detection interface 101.
In this embodiment, the compressed gas delivery pipe 5 is connected to a compressed gas source 11, and a third control valve 12 for connecting a vacuum pump is disposed on the compressed gas delivery pipe 5, so as to vacuum the compressed gas delivery pipe before delivering the compressed gas.
In this embodiment, the device further includes a support base 13 for placing a gas cylinder to be detected, and an electronic scale 14 for measuring the weight of the gas cylinder 2 to be detected is disposed on the support base 13. Preferably, in order to improve safety, the periphery of the top surface 13 of the supporting seat may be provided with an explosion-proof wall 15, where one of the explosion-proof walls is provided to facilitate the opening and closing of the gas cylinder to be detected.
In this embodiment, the first control valve, the second control valve, and the third control valve are connected in parallel. It should be noted that the first control valve, the second control valve, the third control valve, the intake control valve, and the exhaust control valve may be electrically operated.
The specific implementation process comprises the following steps: before operation, the intake control valve and the exhaust control valve are in the closed state, and the first control valve 9, the second control valve 10, and the third control valve 12 are also in the closed state. When in operation, the device comprises: (1) Connecting a gas cylinder interface 104 of the four-way joint 1 with a gas cylinder 2 to be detected, then opening a second control valve 10, and vacuumizing the whole four-way joint 1 by a vacuum pump 4 through a detection interface 101; (2) Closing the second control valve 10 and opening the valve of the gas cylinder 2 to be detected, wherein the pressure value on the pressure gauge 3 is approximate to the pressure value of the gas cylinder 2 to be detected, and if the pressure value on the pressure gauge 3 is the same as the normal working pressure of the gas cylinder, the gas cylinder 2 to be detected is normally filled; if the pressure value on the pressure gauge 3 is higher than the normal working pressure of the gas cylinder, the gas cylinder 2 to be detected is proved to be excessively filled; if the pressure value on the pressure gauge 3 is lower than the normal working pressure of the gas cylinder, the gas cylinder 2 to be detected is proved to be insufficiently filled; (3) If the gas cylinder 2 to be detected is excessively filled, a first control valve 9 is opened, a vacuum pump 4 firstly vacuumizes a gas recovery assembly 6, then the valves of the first control valve 9, an exhaust control valve 8 and a recovery gas cylinder 603 are opened and closed, and compressed gas in the gas cylinder 2 to be detected enters the recovery gas cylinder 603 after passing through a buffer gas cylinder 601 and a transition pipe 602 under the action of pressure; when the pressure value on the pressure gauge 3 is the normal working pressure of the gas cylinder, the exhaust control valve 8 is closed, so that the recovery of the redundant gas in the gas cylinder 2 to be detected is realized; (4) If the to-be-detected gas cylinder 2 is not fully filled, the third control valve 12 is opened, the vacuum pump 4 vacuumizes the compressed gas conveying pipe 5, then the third control valve 12 is closed, the air inlet control valve 7 is opened, the compressed gas source 11 supplements and fills the compressed gas into the to-be-detected gas cylinder 2 through the compressed gas conveying pipe 5 and the four-way joint 1, and when the pressure value on the pressure gauge 3 is the normal working pressure of the gas cylinder, the air inlet control valve 7 is closed, so that the supplement and the filling of the to-be-detected gas cylinder 2 are completed.
If the utility model discloses or relates to components or structures fixedly connected with each other, then unless otherwise stated, the fixed connection is understood as: detachably fixed connection (e.g. using bolts or screws) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).
In addition, terms used in any of the above-described aspects of the present disclosure to express positional relationship or shape have meanings including a state or shape similar to, similar to or approaching thereto unless otherwise stated.
Any part provided by the utility model can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.
Claims (8)
1. A compressed gas fills detection device, characterized in that: the four interfaces of the four-way connector are a detection interface, an air inlet interface, a recovery interface and a gas cylinder interface respectively, the gas cylinder interface is used for being connected with a gas cylinder to be detected, the detection interface is connected with a pressure gauge, and the detection interface is also connected with a vacuum pump; the air inlet interface is connected with a compressed gas conveying pipe; the recovery interface is connected with the gas recovery assembly.
2. The compressed gas filling detection device according to claim 1, wherein: the air inlet interface is provided with an air inlet control valve; the recovery interface is provided with an exhaust control valve.
3. The compressed gas filling detection device according to claim 1, wherein: the gas recovery assembly comprises a buffer gas tank, one end of the buffer gas tank is provided with an air inlet hole, the other end of the buffer gas tank is provided with an air outlet hole, the air inlet hole is connected with a recovery interface, and the air outlet hole is connected with a recovery gas cylinder through a transition pipe.
4. A compressed gas filling detection device according to claim 3, wherein: the diameter of the buffer gas tank is larger than that of the transition pipe.
5. A compressed gas filling detection device according to claim 3, wherein: the buffer gas tank is provided with a first control valve for connecting a vacuum pump.
6. The compressed gas filling detection device according to claim 1, wherein: and a second control valve is arranged on a pipeline connected with the vacuum pump through the detection interface.
7. The compressed gas filling detection device according to claim 1, wherein: the compressed gas conveying pipe is connected with a compressed gas source, and a third control valve used for being connected with the vacuum pump is arranged on the compressed gas conveying pipe.
8. The compressed gas filling detection device according to claim 1, wherein: the gas cylinder detection device is characterized by further comprising a supporting seat for placing the gas cylinder to be detected, and an electronic scale for measuring the weight of the gas cylinder to be detected is arranged on the supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120364472.0U CN218895272U (en) | 2021-02-10 | 2021-02-10 | Compressed gas filling detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120364472.0U CN218895272U (en) | 2021-02-10 | 2021-02-10 | Compressed gas filling detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218895272U true CN218895272U (en) | 2023-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120364472.0U Active CN218895272U (en) | 2021-02-10 | 2021-02-10 | Compressed gas filling detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218895272U (en) |
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2021
- 2021-02-10 CN CN202120364472.0U patent/CN218895272U/en active Active
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