CN217212685U - Quick detection device for methane gas in underground closed system - Google Patents
Quick detection device for methane gas in underground closed system Download PDFInfo
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- CN217212685U CN217212685U CN202221006887.1U CN202221006887U CN217212685U CN 217212685 U CN217212685 U CN 217212685U CN 202221006887 U CN202221006887 U CN 202221006887U CN 217212685 U CN217212685 U CN 217212685U
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- Prior art keywords
- sealing
- self
- bag
- gas
- methane
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 76
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 238000012031 short term test Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 abstract description 45
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a gas detection technical field, in particular to a methane gas fast detection device in underground sealing, which comprises a self-sealing bag, wherein the self-sealing bag consists of a plastic bag and a self-sealing bag sealing strip, and also comprises a detection structure connected with the self-sealing bag, the detection structure comprises a methane portable instrument, a transmission component, a sealing connection component and an exhaust and air suction component, after the gas in the self-sealing bag is discharged, the self-sealing bag is held by one hand, an air suction rubber ball is pinched by the other hand, the gas in the sealing is discharged into the self-sealing bag, after the self-sealing bag is swelled, the frequency of pinching the air suction rubber ball is reduced, the sealing of the self-sealing bag is prevented from being spread, the air suction rubber ball is pinched continuously for 3-5 minutes, the methane portable instrument displays stable value for more than 30 seconds and can be read, the device can fast and accurately measure the concentration value of methane under the condition of low-concentration oxygen in the sealing, thereby improving the methane gas fast detection accuracy on site in the sealing, the detection cost is reduced, and the operation is simple and convenient.
Description
Technical Field
The utility model relates to a gaseous technical field that detects specifically is gaseous quick detection device of airtight interior methane in pit.
Background
Methane is an organic compound of the formula CH 4 And the molecular weight is 16.043. The methane is the simplest organic matter and is the hydrocarbon with the minimum carbon content, the methane is widely distributed in the nature, is the main component of natural gas, methane and pit gas, commonly known as gas, can be used as fuel and raw materials for producing substances such as hydrogen, carbon black, carbon monoxide, acetylene, hydrocyanic acid, formaldehyde and the like, and the content of the methane in the air needs to be detected in a coal mine.
The existing optical gas detector is used for detecting methane gas in a downhole seal, and other gases such as CO and CO are generally contained in the seal 2 And other alkane gas, if the optical gas detector does not absorb the gas medicament, the measured concentration is higher, the detection accuracy is influenced, and the existing device which needs sampling and conveying for analysis and detection is inconvenient to use and reduces the detection efficiency, so that the invention provides the device for quickly detecting the methane gas in the underground closed system.
Disclosure of Invention
In view of the above-mentioned and/or the problem that exists among the current airtight interior methane gas quick detection device in pit, provided the utility model discloses.
Therefore, the utility model aims at providing a gaseous quick detection device of methane in airtight in pit can solve the above-mentioned current airtight interior methane gas of using of optical gas calibrator inspection in pit that proposes, generally contains other gases in airtight, like CO, CO 2 And other alkane gases, if the optical gas detector does not absorb the above gas agents, the measured concentration is also higher, and the detection accuracy is affected.
For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:
gaseous quick detection device of methane in airtight in pit, it includes: the self-sealing bag consists of a plastic bag and a self-sealing bag sealing strip, and also comprises a detection structure connected with the self-sealing bag;
the detection structure comprises a portable methane instrument, a transmission assembly, a sealing connection assembly and an exhaust air suction assembly, the portable methane instrument is installed in a self-sealing bag, one end of the transmission assembly penetrates through the sealing strip of the self-sealing bag and extends into the plastic bag, the sealing connection assembly is installed at the joint of the outer side of the transmission assembly and the sealing strip of the self-sealing bag, and the other end of the transmission assembly is connected with the air suction and exhaust assembly.
As an airtight interior methane gas short-term test device in pit an preferred scheme, wherein: the air suction and exhaust assembly comprises an air suction rubber ball, an air inlet and an air outlet are formed in the two ends of the air suction rubber ball respectively, and one-way valves are fixedly mounted on the inner walls of the air inlet and the air outlet respectively.
As a gaseous quick detection device of airtight interior methane in pit an optimal selection scheme, wherein: the air inlet and the air outlet on one side of the one-way valve are respectively provided with an annular groove, and the inner wall of each annular groove is fixedly provided with an annular rubber ring.
As an airtight interior methane gas short-term test device in pit an preferred scheme, wherein: one end of the transmission assembly is connected with the inner walls of the air inlet and the air outlet in a sliding mode and is connected with the inner walls of the annular rubber rings on the inner sides of the air inlet and the air outlet in an extruding and friction mode.
As an airtight interior methane gas short-term test device in pit an preferred scheme, wherein: the transmission assembly comprises a first connecting pipe and a second connecting pipe, one end of the connecting pipe penetrates through the self-sealing bag sealing strip and extends into the plastic bag, and the sealing connection assembly is arranged at the joint of the first outer wall of the connecting pipe and the self-sealing bag sealing strip.
As an airtight interior methane gas short-term test device in pit an preferred scheme, wherein: the other end of the first connecting pipe and one end of the second connecting pipe are both in sliding connection with the inner walls of the gas inlet and the gas outlet and are in extrusion friction connection with the inner walls of the annular rubber rings on the inner sides of the gas inlet and the gas outlet.
As an airtight interior methane gas short-term test device in pit an preferred scheme, wherein: sealing connection subassembly includes the arc connecting block, the equal fixedly connected with arc connecting block in inboard top and the bottom of valve bag sealing strip, the connecting hole has been seted up to arc connecting block inboard.
As an airtight interior methane gas short-term test device in pit an preferred scheme, wherein: an annular connecting groove is formed in the outer wall of the connecting pipe, the outer wall of the annular connecting groove is connected with a connecting hole formed in the arc-shaped connecting block in a clamped mode, and a rubber pad is installed at the joint of the inner wall of the connecting hole and the outer wall of the annular connecting groove.
Compared with the prior art:
after gas in the self-sealing bag is discharged, the self-sealing bag is held by one hand, the air suction rubber ball is held by the other hand, the gas in the sealing bag is discharged into the self-sealing bag, after the self-sealing bag is swelled, the frequency of holding the air suction rubber ball is reduced, the self-sealing bag is prevented from being sealed and opened, the air suction rubber ball is continuously held by the hand for 3-5 minutes, the display value of the portable methane instrument is stable for more than 30 seconds, and the instrument can read the gas.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a sectional view of the present invention;
FIG. 3 is an enlarged view of the area A in FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of the area B of FIG. 2 according to the present invention;
FIG. 5 is a front view of the sealing strip of the self-sealing bag of the present invention;
fig. 6 is a front view of the present invention during air exhaust.
In the figure: the methane portable instrument comprises a valve bag 1, a plastic bag 11, a valve bag sealing strip 12, a methane portable instrument 3, a first connecting pipe 41, a second connecting pipe 42, an arc-shaped connecting block 51, a connecting hole 52, a rubber pad 53, an annular connecting groove 54, a suction rubber ball 61, an air inlet 62, an air outlet 63, an annular groove 64, an annular rubber ring 65 and a one-way valve 66.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The utility model provides a quick detection device for methane gas in underground sealing, which has the advantages of convenient use and improved detection accuracy, please refer to fig. 1-6, which comprises a self-sealing bag 1, wherein the self-sealing bag 1 is composed of a plastic bag 11 and a self-sealing bag sealing strip 12, a methane portable instrument 3 is arranged in the self-sealing bag 1, a gas inlet 62 and a gas outlet 63 are respectively arranged at the two ends of a gas suction rubber ball 61, a check valve 66 is fixedly arranged on the inner wall of the gas inlet 62 and the inner wall of the gas outlet 63, annular grooves 64 are respectively arranged on the inner wall of the gas inlet 62 and the inner wall of the gas outlet 63 at one side of the check valve 66, annular rubber rings 65 are fixedly arranged on the inner wall of the annular grooves 64, arc-shaped connecting blocks 51 are fixedly connected at the top end and the bottom end of the inner side of the self-sealing bag sealing strip 12, connecting holes 52 are arranged on the inner side of the arc-shaped connecting blocks 51, an annular connecting groove 54 is arranged on the outer wall of the first connecting pipe 41, the annular connecting groove 54 is clamped with the connecting holes 52 arranged on the arc-shaped connecting blocks 51, a rubber pad 53 is arranged at the joint of the inner wall of the connecting hole 52 and the outer wall of the annular connecting groove 54, the first connecting pipe 41 penetrates through the valve bag sealing strip 12 and extends into the valve bag 1, a rubber pad 5 is fixedly arranged in the connecting hole 52 on the arc-shaped connecting block 51, and the rubber pad 5 in the arc-shaped connecting block 51, the connecting hole 52 and the connecting hole 52 is clamped in the annular connecting groove 54 formed in the first connecting pipe 41 to fix the connecting pipe 41.
One end of the first connecting pipe 41 penetrates through the sealing strip 12 of the valve bag and extends into the plastic bag 11, the sealing and connecting assembly is arranged at the joint of the outer wall of the first connecting pipe 41 and the sealing strip 12 of the valve bag, the other end of the first connecting pipe 41 and one end of the second connecting pipe 42 are both connected with the inner walls of the air inlet 62 and the air outlet 63 in a sliding manner, and is connected with the inner walls of the annular rubber ring 65 at the inner sides of the air inlet 62 and the air outlet 63 in a squeezing and friction way, when exhausting, the other end of the first connecting pipe 41 is inserted into the air inlet 62 of the air suction rubber ball 61, and is connected with the annular rubber ring 65 in the air inlet 62 in a squeezing and friction way, the outer wall of the bottom end of the connecting pipe 42 is inserted into the air outlet 63 of the air suction rubber ball 61 and is connected with the annular rubber ring 65 in the air outlet 63 in a squeezing and friction way, by squeezing the air suction rubber ball 6, the gas in the valve bag 1 is transferred to the air suction rubber ball 6 through the connection tube 41, and is discharged through the second connection tube 42 connected to the outlet 633 of the air suction rubber ball 61.
During air suction, after the first connecting pipe 41 and the second connecting pipe 42 are respectively pulled out from the air inlet 62 and the air outlet 63, the other end of the first connecting pipe 41 is inserted into the air outlet 63 of the air suction rubber ball 61 and is in extrusion friction connection with the annular rubber ring 65 in the air outlet 63, the second connecting pipe 42 is inserted into the air inlet 62 of the air suction rubber ball 61 and is in extrusion friction connection with the annular rubber ring 65 in the air inlet 62, and air is transmitted into the self-sealing bag 1 through the second connecting pipe 42 and the first connecting pipe 41 by extruding the air suction rubber ball 61.
When in specific use, a person skilled in the art firstly places the methane portable instrument 3 in the valve bag 1, passes the first connecting pipe 41 through the sealing strip 12 of the valve bag and extends into the valve bag 1, the rubber pad 5 is fixedly arranged in the connecting hole 52 on the arc-shaped connecting block 51, the rubber pad 5 in the arc-shaped connecting block 51, the connecting hole 52 and the connecting hole 52 is clamped in the annular connecting groove 54 arranged on the first connecting pipe 41, the connecting pipe 41 is fixed, the other end of the first connecting pipe 41 is inserted into the air inlet 62 of the air suction rubber ball 61, and is connected with the annular rubber ring 65 in the air inlet 62 in a squeezing and friction way, the outer wall of the bottom end of the connecting pipe 42 is inserted into the air outlet 63 of the air suction rubber ball 61 and is connected with the annular rubber ring 65 in the air outlet 63 in a squeezing and friction way, by squeezing the air suction rubber ball 6, the air in the valve bag 1 is transmitted to the air suction rubber ball 6 through the connecting pipe 41 and then is discharged through the second connecting pipe 42 connected with the air outlet 633 of the air suction rubber ball 61.
After the first connecting pipe 41 and the second connecting pipe 42 are respectively pulled out from the air inlet 62 and the air outlet 63, the other end of the first connecting pipe 41 is inserted into the air outlet 63 of the air suction rubber ball 61 and is in extrusion friction connection with the annular rubber ring 65 in the air outlet 63, the second connecting pipe 42 is inserted into the air inlet 62 of the air suction rubber ball 61 and is in extrusion friction connection with the annular rubber ring 65 in the air inlet 62, the self-sealing bag 1 is held by one hand, the air suction rubber ball 61 is held by one hand, the closed internal gas is discharged into the self-sealing bag 1, after the self-sealing bag 1 is expanded, the frequency of holding the air suction rubber ball 61 is reduced, the self-sealing bag is prevented from being opened, the air suction rubber ball 61 is continuously held for 3-5 minutes, the methane portable instrument 3 displays that the numerical value is stable for more than 30 seconds, the reading can be carried out, the use is convenient, and the detection accuracy is improved.
Claims (8)
1. Methane gas short-term test device in airtight in pit, including valve bag (1), valve bag (1) comprises plastic bag (11), valve bag sealing strip (12), its characterized in that: the self-sealing bag also comprises a detection structure connected with the self-sealing bag (1);
the detection structure comprises a portable methane instrument (3), a transmission assembly, a sealing connection assembly and an exhaust air suction assembly, the portable methane instrument (3) is installed in a self-sealing bag (1), one end of the transmission assembly penetrates through the self-sealing bag sealing strip (12) and extends into a plastic bag (11), the sealing connection assembly is installed at the joint of the outer side of the transmission assembly and the self-sealing bag sealing strip (12), and the other end of the transmission assembly is connected with the air suction and exhaust assembly.
2. The device for rapidly detecting the methane gas in the underground seal according to claim 1, wherein the air suction and exhaust assembly comprises an air suction rubber ball (61), an air inlet (62) and an air outlet (63) are respectively formed at two ends of the air suction rubber ball (61), and check valves (66) are fixedly mounted on inner walls of the air inlet (62) and the air outlet (63).
3. The device for rapidly detecting the methane gas in the underground seal according to claim 2, wherein annular grooves (64) are formed in the inner walls of the gas inlet (62) and the gas outlet (63) on one side of the check valve (66), and annular rubber rings (65) are fixedly mounted on the inner walls of the annular grooves (64).
4. The device for rapidly detecting the methane gas in the underground seal according to claim 3, wherein one end of the transmission assembly is connected with the inner walls of the gas inlet (62) and the gas outlet (63) in a sliding manner and is connected with the inner walls of the annular rubber rings (65) at the inner sides of the gas inlet (62) and the gas outlet (63) in a squeezing and friction manner.
5. The device for rapidly detecting the methane gas in the downhole seal according to claim 4, wherein the transmission assembly comprises a first connecting pipe (41) and a second connecting pipe (42), one end of the first connecting pipe (41) extends into the plastic bag (11) through the valve bag sealing strip (12), and the sealing and connecting assembly is installed at the joint of the outer wall of the first connecting pipe (41) and the valve bag sealing strip (12).
6. The device for rapidly detecting the methane gas in the underground seal according to claim 5, wherein the other end of the first connecting pipe (41) and one end of the second connecting pipe (42) are both connected with the inner walls of the gas inlet (62) and the gas outlet (63) in a sliding manner and are connected with the inner walls of the annular rubber rings (65) at the inner sides of the gas inlet (62) and the gas outlet (63) in a squeezing and friction manner.
7. The device for rapidly detecting the methane gas in the underground seal according to claim 6, wherein the sealing and connecting assembly comprises an arc-shaped connecting block (51), the arc-shaped connecting block (51) is fixedly connected to the top end and the bottom end of the inner side of the valve bag sealing strip (12), and a connecting hole (52) is formed in the inner side of the arc-shaped connecting block (51).
8. The device for rapidly detecting the methane gas in the underground closed environment as claimed in claim 7, wherein the outer wall of the first connecting pipe (41) is provided with an annular connecting groove (54), the outer wall of the annular connecting groove (54) is clamped with a connecting hole (52) formed in the arc-shaped connecting block (51), and a rubber gasket (53) is arranged at the joint of the inner wall of the connecting hole (52) and the outer wall of the annular connecting groove (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221006887.1U CN217212685U (en) | 2022-04-28 | 2022-04-28 | Quick detection device for methane gas in underground closed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221006887.1U CN217212685U (en) | 2022-04-28 | 2022-04-28 | Quick detection device for methane gas in underground closed system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217212685U true CN217212685U (en) | 2022-08-16 |
Family
ID=82776394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221006887.1U Expired - Fee Related CN217212685U (en) | 2022-04-28 | 2022-04-28 | Quick detection device for methane gas in underground closed system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217212685U (en) |
-
2022
- 2022-04-28 CN CN202221006887.1U patent/CN217212685U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220816 |