CN215985035U - Portable high-precision leak detection device for hydrogen supply pipeline - Google Patents
Portable high-precision leak detection device for hydrogen supply pipeline Download PDFInfo
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- CN215985035U CN215985035U CN202121920580.8U CN202121920580U CN215985035U CN 215985035 U CN215985035 U CN 215985035U CN 202121920580 U CN202121920580 U CN 202121920580U CN 215985035 U CN215985035 U CN 215985035U
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Abstract
The utility model discloses a portable high-precision leak detection device for a hydrogen supply pipeline, which comprises a stretch-rolling sleeve, a filter screen and a gas detector, wherein a rectangular air channel groove is formed in the stretch-rolling sleeve, the filter screen is arranged in the air channel groove, four sides of the filter screen are fixed on four sides of the top of the rectangular air channel groove and are flush with the inner surfaces of two sides of the stretch-rolling sleeve, one side of the air channel groove is communicated with a side air pipe fixed on one side of the stretch-rolling sleeve, a first adhesion block is arranged on the outer side of one end of the stretch-rolling sleeve, a second adhesion block is arranged on the inner side of the other end of the stretch-rolling sleeve, the width of the first adhesion block is larger than that of the second adhesion block, and the portable high-precision leak detection device for the hydrogen supply pipeline has the advantages of being simple in installation, convenient to carry and capable of simultaneously meeting the leak detection function of hydrogen pipelines with different diameters under various conditions.
Description
Technical Field
The utility model relates to the technical field of leakage detection of hydrogen pipelines, in particular to a portable high-precision leakage detection device for a hydrogen supply pipeline.
Background
Pipeline transportation of hydrogen is a way to achieve large-scale, long-distance transportation of hydrogen. If the hydrogen pipeline leaks in the use process, explosion is easily caused, so that the leakage detection of the hydrogen pipeline in the installation acceptance, daily use or maintenance process is extremely important.
At present, the hydrogen pipeline leakage detection device on the market generally has the following problems: 1. the pressure side leakage detection is low in precision and needs to observe pressure change for a long time, and when tiny leakage occurs, the leakage is difficult to identify in a short time; 2. adopt pipeline overlay type leak hunting device, the installation is complicated and can not carry out the parcel formula installation to the hydrogen pipeline of different pipe diameters, and most hydrogen pipeline leak hunting device need detect under the condition of cleaing away intraductal hydrogen, can not satisfy the detection achievement when supplying hydrogen pipeline normal operating.
SUMMERY OF THE UTILITY MODEL
In view of the above problems in the prior art, the present invention aims to provide a portable high-precision leak detection device for hydrogen supply pipelines, which is simple to install and convenient to carry, and can simultaneously perform leak detection on hydrogen pipelines with different diameters under various conditions.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a portable high accuracy leak hunting device of hydrogen supply pipeline, is including stretching to roll up cover, filter screen and gaseous detector, stretch to be equipped with rectangle gas channel groove in the roll cover, the gas channel inslot is installed the filter screen, the filter screen four sides are fixed in the rectangle gas channel groove top four sides with stretch roll cover both sides internal surface parallel and level, gas channel groove one side intercommunication has to be fixed stretch the side trachea of rolling up cover one side, stretch to roll up the cover one end outside and install first even piece and the other end inboard second even piece of installing of gluing.
Furthermore, a plurality of groups of air inlets are uniformly arranged on the filter screen.
Furthermore, the stretching and rolling sleeve is symmetrically provided with limiting anti-slip strips along the inner sides of two axial sides of the pipeline.
Furthermore, arc-shaped heads are arranged at two ends of the limiting anti-slip strip.
Further, when the extension sleeve is installed on a hydrogen pipeline, the second adhesion block is adhered to the first adhesion block, and the width of the first adhesion block is larger than that of the second adhesion block.
Furthermore, a threaded connector is arranged at one end of the side air pipe, the threaded connector is connected with a connecting hose, and one end of the connecting hose is connected into the gas detector.
Compared with the prior art, the utility model has the following advantages:
(1) according to the utility model, the leakage detection device is arranged on the coil stretching sleeve which is sleeved on the pipeline, and then the gas in the coil stretching sleeve is extracted by the gas detector for detection, so that the detection is completed in a short time, the leakage position is accurately judged, and the detection precision is higher.
(2) According to the utility model, the gas channel groove is formed in the extending roll sleeve, the filter screen is arranged in the gas channel groove, the second adhesion block is adhered to the first adhesion block when the extending roll sleeve is arranged on the hydrogen pipeline, the width of the first adhesion block is larger than that of the second adhesion block, the second adhesion block can be adhered to the first adhesion block according to the diameter of the pipeline, the hydrogen pipeline with different diameters can be included by the device, the installation is simple, the detachment can be realized by directly separating the first adhesion block from the second adhesion block during detachment, the device is convenient to carry, and the method is also suitable for the work of leakage detection of the pressurized hydrogen pipeline.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
fig. 2 is a half-sectional perspective view provided by an embodiment of the present invention.
In the figure: 1. a coil stretching sleeve; 2. a first adhesive block; 3. a second adhesive block; 4. an airway slot; 5. a filter screen; 6. an air inlet; 7. limiting anti-slip strips; 701. an arc-shaped head; 8. a lateral air pipe; 801. a threaded joint; 802. A connecting hose; 9. a gas detector.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1-2, a portable high accuracy leak detection device for hydrogen supply pipeline, including stretch and roll cover 1, filter screen 5 and gas detector 9, stretch and roll and be equipped with rectangle gas channel groove 4 in the cover 1, install filter screen 5 in the gas channel groove 4, filter screen 5 four sides are fixed at rectangle gas channel groove 4 top four sides and stretch and roll cover 1 both sides internal surface parallel and level, gas channel groove 4 one side intercommunication has the side gas pipe 8 of fixing in stretching and rolling cover 1 one side, stretch and roll cover 1 one end outside and install first adhesion piece 2 and the other end inboard and install second adhesion piece 3.
Through set up leak hunting device to the installation stretch on the pipeline and roll up cover 1, then stretch the gas in rolling up cover 1 through the extraction of gaseous detector and detect, accomplish the detection in the short time, accurate judgement seepage position detects the precision higher.
Through being equipped with air duct groove 4 in stretching roll cover 1, air duct groove 4 is interior installs filter screen 5, second adhesion piece 3 and the adhesion of first adhesion piece 2 when stretching roll cover 1 and installing on the hydrogen pipeline, and first adhesion piece 2 width is greater than second adhesion piece 3, can glue second adhesion piece 3 to first adhesion piece 2 according to the pipeline diameter, realize the hydrogen pipeline of the different diameters of inclusion device, the installation is simple, directly can realize dismantling first adhesion piece 2 and the separation of second adhesion piece 3 when demolising, the while device is convenient for carry, this kind of mode also is applicable to the work that presses the hydrogen pipeline to check leak.
As shown in fig. 1 and 2, a plurality of groups of air inlets 6 are uniformly arranged on the filter screen 5, so that debris on the hydrogen pipeline is prevented from entering the gas detector to damage equipment or cause blockage, and the detection efficiency is prevented from being influenced.
As shown in fig. 1, the roll sleeve 1 is symmetrically provided with limiting anti-slip strips 7 along the inner sides of two axial sides of the pipeline, when the leak detection device is arranged on the vertical hydrogen pipeline, the leak detection device is not pressed by hands all the time, the anti-slip strips are supported by a certain width and are positioned on the surface of the hydrogen pipeline and the inner surface of the filter screen 5, and a negative pressure area is formed in the area due to the air suction of the gas detector 9.
As shown in fig. 2, arc-shaped heads 701 are arranged at two ends of the limiting anti-slip strip 7, so that the leak detection device can be conveniently installed on a hydrogen pipeline.
As shown in fig. 1 and 2, when the coil extension sleeve 1 is installed on the hydrogen pipeline, the second adhesion block 3 is adhered to the first adhesion block 2, and the width of the first adhesion block 2 is larger than that of the second adhesion block 3.
As shown in fig. 1 and 2, a threaded joint 801 is provided at one end of the side gas pipe 8, a connection hose 802 is connected to the threaded joint 801, and one end of the connection hose 802 is connected to the gas detector 9.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a portable high accuracy leak hunting device of hydrogen supply pipeline, detects appearance (9) including stretching to roll up cover (1), filter screen (5) and gas, its characterized in that: stretch to be equipped with rectangle gas channel groove (4) in rolling up cover (1), install filter screen (5) in gas channel groove (4), filter screen (5) four sides are fixed in the rectangle gas channel groove (4) top four sides with stretch to roll up cover (1) both sides internal surface parallel and level, gas channel groove (4) one side intercommunication has to be fixed stretch and roll up side trachea (8) of cover (1) one side, stretch to roll up the cover (1) one end outside and install first adhesion piece (2) and other end inboard and install second adhesion piece (3).
2. The portable high-precision leak detection device for the hydrogen supply pipeline according to claim 1, wherein a plurality of groups of air inlet holes (6) are uniformly formed in the filter screen (5).
3. The portable high-precision leak detection device for the hydrogen supply pipeline according to claim 1, wherein the coil extending sleeve (1) is symmetrically provided with limiting anti-slip strips (7) along the inner sides of two axial sides of the pipeline.
4. The portable high-precision leak detection device for the hydrogen supply pipeline according to claim 3, wherein arc-shaped heads (701) are arranged at two ends of the limiting anti-slip strip (7).
5. The portable high-precision leak detection device for the hydrogen supply pipeline according to claim 1, wherein the second adhesion block (3) is adhered to the first adhesion block (2) when the coil extension sleeve (1) is installed on the hydrogen pipeline, and the width of the first adhesion block (2) is larger than that of the second adhesion block (3).
6. The portable high-precision leak detection device for the hydrogen supply pipeline according to claim 1, wherein one end of the side gas pipe (8) is provided with a threaded joint (801), the threaded joint (801) is connected with a connecting hose (802), and one end of the connecting hose (802) is connected into the gas detector (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121920580.8U CN215985035U (en) | 2021-08-17 | 2021-08-17 | Portable high-precision leak detection device for hydrogen supply pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121920580.8U CN215985035U (en) | 2021-08-17 | 2021-08-17 | Portable high-precision leak detection device for hydrogen supply pipeline |
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| CN215985035U true CN215985035U (en) | 2022-03-08 |
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| CN202121920580.8U Active CN215985035U (en) | 2021-08-17 | 2021-08-17 | Portable high-precision leak detection device for hydrogen supply pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636523A (en) * | 2022-05-17 | 2022-06-17 | 浙江大学 | Carrier gas bin testing device for hydrogen conveying pipeline |
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2021
- 2021-08-17 CN CN202121920580.8U patent/CN215985035U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636523A (en) * | 2022-05-17 | 2022-06-17 | 浙江大学 | Carrier gas bin testing device for hydrogen conveying pipeline |
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