CN219670410U - Hydrogen detects sticky tape - Google Patents
Hydrogen detects sticky tape Download PDFInfo
- Publication number
- CN219670410U CN219670410U CN202223328778.4U CN202223328778U CN219670410U CN 219670410 U CN219670410 U CN 219670410U CN 202223328778 U CN202223328778 U CN 202223328778U CN 219670410 U CN219670410 U CN 219670410U
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- Prior art keywords
- hydrogen
- sensing layer
- adhesive tape
- detection
- substrate
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 85
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 85
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 238000009423 ventilation Methods 0.000 claims abstract description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 230000008447 perception Effects 0.000 claims 2
- 239000002390 adhesive tape Substances 0.000 abstract description 30
- 239000003054 catalyst Substances 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The utility model discloses a hydrogen detection adhesive tape, which relates to the technical field of hydrogen leakage detection, and comprises a hydrogen sensing layer, wherein the hydrogen sensing layer is adhered on a PI substrate; the hydrogen sensing layer is provided with a plurality of ventilation holes, wherein the hydrogen sensing layer is an oxide layer, and a catalyst is dispersed on the oxide layer; the hydrogen detection adhesive tape can be directly stuck to a part which is easy to leak hydrogen, the operation is simple, the hydrogen leakage part can be accurately judged through the color change of the adhesive tape, the color change is rapid, the sensitivity is high, and the detection capability of the hydrogen leakage part is strong. In addition, the hydrogen detection adhesive tape has extremely strong anti-interference performance, is not influenced by temperature, humidity, wind speed, dust, smoke and the like, and has extremely high safety.
Description
Technical Field
The utility model relates to the technical field of hydrogen leakage detection, in particular to a hydrogen detection adhesive tape.
Background
Hydrogen is the gas with the smallest density. There are many chemical reactions in industry, hydrogen is an important chemical raw material, which can be used as a reducing agent, and hydrogen is also used in medicine to treat partial diseases, and hydrogen balloons in life are the most common place for hydrogen.
The hydrogen is most common in the chemical industry, a gas tank is usually used for storing and transmitting the hydrogen by using a pipeline, but the leakage of the hydrogen is usually caused by the leakage of the gas tank and the pipeline or the imprecision of a valve joint, and a plurality of factories can detect the hydrogen by using a sensor, but the sensor can have the conditions of difficult detection or incapability of accurately detecting leakage points in the occasions such as special measuring fields, external wind influence and the like; therefore, the utility model provides the hydrogen detection adhesive tape, the adhesive tape is used for bonding the pipeline or the pipe joint, once hydrogen leakage occurs, the adhesive tape can change color, the position of the leakage point can be quickly found through the color-changed adhesive tape, and the coverage area of the adhesive tape is large and is not influenced by the measurement position and external wind power.
Disclosure of Invention
The utility model aims to provide a hydrogen detection adhesive tape, which solves the technical problem that the hydrogen leakage point cannot be accurately detected in special measuring fields, external wind influence and other occasions.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a hydrogen detection tape comprising a hydrogen sensing layer bonded to a PI substrate; the hydrogen sensing layer is provided with a plurality of ventilation holes.
As a further technical scheme of the utility model, a gasket is bonded at the middle position of the bottom of the hydrogen sensing layer; and release paper is attached to the bottom of the hydrogen sensing layer and the bottom of the gasket.
As a further technical scheme of the utility model, the width of the hydrogen sensing layer is slightly narrower than that of the PI substrate, wherein two side edges of the PI substrate are set to be bonding edges, and the bonding edges wrap the hydrogen sensing layer between the PI substrate and the release paper.
As a further technical scheme of the utility model, the thickness of the hydrogen sensing layer is 0.04-0.05mm.
As a further technical scheme of the utility model, the thickness of the PI substrate is 0.02mm.
As a further technical scheme of the utility model, the thickness of the gasket is 0.07mm.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model can be applied to a plurality of mechanical devices such as a gas storage bottle, a valve pipeline, a pressure monitoring warehouse, a pressure regulating valve joint, a flange plate and the like, and when the device is used, the detection adhesive tape is adhered to the outside of the mechanical devices, and the effects of on-line adhesion, on-line detection and the like can be realized without stopping the device;
2. the hydrogen sensing layer is an oxide layer, and a catalyst is dispersed on the oxide layer; the hydrogen detection adhesive tape can be directly stuck to a part which is easy to leak hydrogen, the operation is simple, the hydrogen leakage part can be accurately judged through the color change of the adhesive tape, the color change is rapid, the sensitivity is high, and the detection capability of the hydrogen leakage part is strong. In addition, the hydrogen detection adhesive tape has extremely strong anti-interference performance, is not influenced by temperature, humidity, wind speed, dust, smoke and the like, and has extremely high safety.
Drawings
FIG. 1 is a schematic view of a hydrogen detecting tape according to an embodiment of the present utility model;
FIG. 2 is a schematic structural view of a second embodiment of a hydrogen detecting tape according to the present utility model;
FIG. 3 is a schematic cross-sectional view of FIG. 2;
fig. 4 shows the experimental results of the reaction of the hydrogen test tape of the present utility model with hydrogen as the hydrogen concentration increases.
In the figure: 1. a hydrogen sensing layer; 2. a PI substrate; 3. a gasket; 4. and (5) release paper.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1, in an embodiment of the present utility model, a hydrogen detecting tape includes a hydrogen sensing layer 1, wherein the hydrogen sensing layer 1 is adhered to a PI substrate 2; a plurality of ventilation holes are formed in the hydrogen sensing layer 1; the thickness of the hydrogen sensing layer 1 is 0.05mm.
Embodiment one of the first embodiment: in the case of bolt bonding with a length of less than 30mm,
1. cutting the adhesive tape with the width of 45mm to a length of about 120mm, and winding the adhesive tape around the bolt;
2. the winding is flattened as much as possible and is not broken; the adhesive tapes on the four peripheral surfaces of the bolts are as flat as possible and are not overlapped;
3. the end portion side is folded down with as little space as possible.
Embodiment two of the first embodiment: in the case of bolt bonding of greater than 30mm in length,
1. cutting out 2 pieces of adhesive tape with the width of 45mm and the length of about 85mm, and attaching the periphery of the bolt for 2 times;
2. attaching each half cycle only around the bolt;
3. air is discharged to be closely adhered to the bulge.
Example two
Referring to fig. 2-4, a gasket 3 is bonded at the middle position of the bottom of the hydrogen sensing layer 1; the bottom of the hydrogen sensing layer 1 and the bottom of the gasket 3 are also attached with release paper 4.
In this embodiment, the thickness of the hydrogen sensing layer 1 is 0.04mm; the thickness of the PI substrate 2 is 0.02mm; the thickness of the spacer 3 is 0.07mm.
Specifically, the hydrogen sensing layer 1 is an organosilicon adhesive; the gasket 3 is a PTFE gas permeable membrane.
Referring specifically to fig. 4, the experimental results of the hydrogen detection tape according to the present utility model are shown.
In fig. 4, the experimental conditions are: in a 30ml glass tube, the flow rate was 100ml/min and the balance gas was air. Wherein the experiments were conducted by comparing the reaction curves under the same experimental conditions described above with different hydrogen concentrations, wherein air was used as the balance gas, and the hydrogen concentrations were 100%, 3%, 2% and 1%, respectively. Based on the multiple curves of fig. 4, it can be obtained that the reaction between the hydrogen gas detection adhesive tape of the present utility model and hydrogen gas will change with increasing hydrogen gas concentration, in other words, the color change speed of the hydrogen gas detection adhesive tape will increase with increasing hydrogen gas concentration.
Preferably, the width of the hydrogen sensing layer 1 is slightly narrower than the width of the PI substrate 2, wherein two sides of the PI substrate 2 are set to be bonding sides, and the bonding sides wrap the hydrogen sensing layer 1 between the PI substrate 2 and the release paper 4. The purpose of the arrangement is to prevent hydrogen leaking from other positions from contacting with the edges of the two sides of the detection adhesive tape in the using process of the color-changing adhesive tape to cause color change of the hydrogen sensing layer 1 positioned in the middle, thereby influencing the detection result.
According to the preferred embodiment of the utility model, the width of the hydrogen sensing layer 1 in the middle is set to be slightly narrower than that of the PI substrate 2, so that the two side edges of the PI substrate 2 form bonding edges, the hydrogen sensing layer 1 is wrapped between the PI substrate 2 and the release paper 4, only hydrogen leaking from the wrapping position of the detection adhesive tape can react with the hydrogen sensing layer 1 to change color, and the detection stability and reliability are improved.
The working principle of the utility model is as follows: the hydrogen detection adhesive tape can be applied to a plurality of mechanical devices such as a gas storage bottle, a valve pipeline, a pressure monitoring warehouse, a pressure regulating valve joint, a flange plate and the like, and when the hydrogen detection adhesive tape is used, the detection adhesive tape is bonded outside the mechanical devices, and the effects of online bonding, online detection and the like can be realized without stopping the machine;
in the utility model, the hydrogen sensing layer 1 is an oxide layer, and a catalyst is dispersed on the oxide layer; the hydrogen detection adhesive tape can be directly stuck to a part which is easy to leak hydrogen, the operation is simple, the hydrogen leakage part can be accurately judged through the color change of the adhesive tape, the color change is rapid, the sensitivity is high, and the detection capability of the hydrogen leakage part is strong. In addition, the hydrogen detection adhesive tape has extremely strong anti-interference performance, is not influenced by temperature, humidity, wind speed, dust, smoke and the like, and has extremely high safety.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. A hydrogen gas detection tape, characterized in that: the hydrogen sensing device comprises a hydrogen sensing layer (1), wherein the hydrogen sensing layer (1) is bonded on a PI substrate (2); a plurality of ventilation holes are formed in the hydrogen sensing layer (1), a gasket (3) is bonded at the middle position of the bottom of the hydrogen sensing layer (1), and the gasket (3) is a PTFE ventilation film.
2. The hydrogen-detecting tape according to claim 1, wherein: the bottom of the hydrogen sensing layer (1) and the bottom of the gasket (3) are also attached with release paper (4).
3. The hydrogen-detecting tape according to claim 2, wherein: the width of hydrogen perception layer (1) is slightly narrower than the width of PI substrate (2), and wherein, the both sides limit of PI substrate (2) sets up to the bonding limit, bonding limit wraps up hydrogen perception layer (1) between PI substrate (2) and release paper (4).
4. A hydrogen gas detection tape according to any one of claims 1 to 3, wherein: the thickness of the hydrogen sensing layer (1) is 0.04-0.05mm.
5. A hydrogen gas detection tape according to any one of claims 1 to 3, wherein: the thickness of the PI substrate (2) is 0.02mm.
6. The hydrogen-detecting tape according to claim 1, wherein: the thickness of the gasket (3) is 0.07mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223328778.4U CN219670410U (en) | 2022-12-08 | 2022-12-08 | Hydrogen detects sticky tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223328778.4U CN219670410U (en) | 2022-12-08 | 2022-12-08 | Hydrogen detects sticky tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219670410U true CN219670410U (en) | 2023-09-12 |
Family
ID=87899030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223328778.4U Active CN219670410U (en) | 2022-12-08 | 2022-12-08 | Hydrogen detects sticky tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219670410U (en) |
-
2022
- 2022-12-08 CN CN202223328778.4U patent/CN219670410U/en active Active
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| GR01 | Patent grant |