CN215339125U - Explosion-proof sampling probe of combustible gas - Google Patents
Explosion-proof sampling probe of combustible gas Download PDFInfo
- Publication number
- CN215339125U CN215339125U CN202121188403.5U CN202121188403U CN215339125U CN 215339125 U CN215339125 U CN 215339125U CN 202121188403 U CN202121188403 U CN 202121188403U CN 215339125 U CN215339125 U CN 215339125U
- Authority
- CN
- China
- Prior art keywords
- explosion
- gas
- sampling
- proof
- flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The application provides an explosion-proof sampling probe for combustible gas, which comprises a sampling tube; one end of the sampling tube is fixedly connected with a first one-way valve, and the other end of the sampling tube is fixedly connected with a gas processing tube; a first flange is arranged at the port of the sampling tube close to the gas processing tube, and a second flange is arranged at the port of the gas processing tube close to the sampling tube; a sealing ring is arranged between the first flange and the second flange; a first air hole and a second air hole are formed in the second flange, a second one-way valve is arranged on the second air hole, a safety valve is arranged on the first air hole, and one end, close to the sampling tube, of the safety valve is fixedly connected with an air storage tank; the gas storage tank is positioned inside the sampling tube. When electric spark is generated in the combustible gas detection device, the combustible gas in the combustible gas detection device explodes, the pressure generated by explosion breaks the safety valve, the explosion gas enters the gas storage tank, the gas pressure in the explosion-proof sampling probe is relieved, and the explosion of the combustible gas in the detected environment caused by the explosion-proof sampling probe of the combustible gas is avoided.
Description
The technical field is as follows:
the utility model belongs to the technical field of explosion-proof sampling devices, and particularly relates to an explosion-proof sampling probe for combustible gas.
Background art:
the combustible gas is one of the serious fire hazards in the case of fire caused by combustible gas, and when the combustible gas reaches a certain concentration range in air or oxygen, the combustible gas can explode when meeting a fire source. In order to prevent the flammable gas from exploding after reaching a certain concentration, and ensure safe production, a flammable gas detection alarm device is often required to be arranged in factories or places where the flammable gas is produced and used. Wherein, combustible gas detection alarm device need use the explosion-proof sampling probe of combustible gas.
At present, the combustible gas detection alarm device has two types, namely a catalytic type and an infrared optical type. The catalytic combustible gas detection alarm device measures the concentration of combustible gas by using the resistance change of a refractory metal platinum wire after heating. When combustible gas enters the detection alarm device, oxidation reaction is caused on the surface of the platinum wire, the temperature of the platinum wire is increased by the heat generated by the oxidation reaction, and the resistivity of the platinum wire is changed; the infrared optical type combustible gas detection alarm device detects the alkane combustible gas in the field environment by using an infrared sensor through the absorption principle of an infrared light source.
However, the combustible gas detection alarm device generally works in flammable and explosive environment, but in the existing working mechanism, more regard the combustible gas detection alarm device itself as an explosion-proof device, realize the explosion-proof to the environment through its testing result, and pay attention to the explosion-proof of device itself very little, in fact, the explosion-proof of device itself has very high practical meaning, if the inside electric spark that produces of combustible gas detection device, make the inside combustible gas explosion of combustible gas detection device very easily, and then arouse through the explosion-proof sampling probe of combustible gas to be detected the combustible gas explosion in the environment.
SUMMERY OF THE UTILITY MODEL
The application provides an explosion-proof sampling probe of combustible gas can be used to solve among the prior art if the inside electric spark that produces of combustible gas detection device, makes the inside combustible gas explosion of combustible gas detection device very easily, and then arouses the problem that is detected the combustible gas explosion in the environment through the explosion-proof sampling probe of combustible gas.
The application provides an explosion-proof sampling probe for combustible gas, which comprises a sampling tube; one end of the sampling tube is fixedly connected with a first one-way valve, and the other end of the sampling tube is fixedly connected with a gas processing tube; one end of the gas processing pipe, which is far away from the sampling pipe, is fixedly connected with a purging sampling port; the purging sampling port is fixedly connected with a gas detection device;
a first flange is arranged at the port of the sampling pipe close to the gas processing pipe, and a second flange is arranged at the port of the gas processing pipe close to the sampling pipe; the first flange is fixedly connected with the second flange, and a sealing ring is arranged between the first flange and the second flange;
the second flange is provided with a first air hole and a second air hole; the first gas hole and the second gas hole are both positioned inside the gas processing pipe; a second one-way valve is arranged on the second air hole, a safety valve is arranged on the first air hole, and one end, close to the sampling tube, of the safety valve is fixedly connected with an air storage tank; the gas storage tank is positioned inside the sampling tube;
the outer wall of the gas treatment pipe is coated with an electric heating wire for heating the gas inside the gas treatment pipe; the outer wall of the electric heating wire is coated with a sealant layer; the outer wall of the adhesive sealing layer is coated with an explosion-proof shell.
Optionally, an explosion-proof gland head is arranged on the explosion-proof shell, an electric wire penetrates through the explosion-proof gland head, and the electric heating wire is electrically connected with the explosion-proof shell.
Optionally, the adhesive sealing layer is an epoxy resin layer.
Optionally, the first flange and the second flange are fixedly connected through screws.
Optionally, the inner wall of the sampling tube is circumferentially provided with a filter screen.
Optionally, the first one-way valve is screwed to the end of the sampling tube.
Optionally, the purge sampling port is threadably coupled to an end of the gas processing tube.
Optionally, the explosion-proof housing is provided with a grounding connector.
The application provides an explosion-proof sampling probe for combustible gas, which comprises a sampling tube; one end of the sampling tube is fixedly connected with a first one-way valve, and the other end of the sampling tube is fixedly connected with a gas processing tube; one end of the gas processing pipe, which is far away from the sampling pipe, is fixedly connected with a purging sampling port; the purging sampling port is fixedly connected with a gas detection device; a first flange is arranged at the port of the sampling pipe close to the gas processing pipe, and a second flange is arranged at the port of the gas processing pipe close to the sampling pipe; the first flange is fixedly connected with the second flange, and a sealing ring is arranged between the first flange and the second flange; the second flange is provided with a first air hole and a second air hole; the first gas hole and the second gas hole are both positioned inside the gas processing pipe; a second one-way valve is arranged on the second air hole, a safety valve is arranged on the first air hole, and one end, close to the sampling tube, of the safety valve is fixedly connected with an air storage tank; the gas storage tank is positioned inside the sampling tube; the outer wall of the gas treatment pipe is coated with an electric heating wire for heating the gas inside the gas treatment pipe; the outer wall of the electric heating wire is coated with a sealant layer; the outer wall of the adhesive sealing layer is coated with an explosion-proof shell. By adopting the device, if electric sparks are generated in the combustible gas detection device, the combustible gas in the combustible gas detection device explodes, the safety valve is broken by the pressure generated by explosion, the explosion gas enters the gas storage tank, the gas pressure in the explosion-proof sampling probe is relieved, and the explosion of the combustible gas in the detected environment caused by the explosion-proof sampling probe of the combustible gas is avoided.
Description of the drawings:
in order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a flammable gas explosion-proof sampling probe provided in an embodiment of the present application;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a front view of a second flange in a flammable gas explosion-proof sampling probe according to an embodiment of the present application.
Wherein, 1-sampling tube, 11-first check valve, 12-first flange, 13-sealing ring, 14-filter screen; 2-a gas treatment pipe, 21-a purging sampling port, 22-a second flange, 221-a first air hole, 222-a second air hole, 223-a second one-way valve, 224-a safety valve, 225-an air storage tank, 23-an electric heating wire, 24-a sealant layer, 25-an explosion-proof shell, 251-an explosion-proof gram head and 252-a grounding connector.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The application provides an explosion-proof sampling probe of combustible gas, the explosion-proof sampling probe of combustible gas includes the sampling tube 1; one end of the sampling tube 1 is fixedly connected with a first one-way valve 11, and the other end of the sampling tube is fixedly connected with a gas processing tube 2; one end of the gas processing pipe 2, which is far away from the sampling pipe 1, is fixedly connected with a purging sampling port 21; the purging sampling port 21 is fixedly connected with a gas detection device. The sample gas in the detected environment enters the sampling tube 1 through the first one-way valve 11, enters the gas processing tube 2, and finally enters the gas detection device through the purging sampling port 21 to detect the concentration of the target gas.
A first flange 12 is arranged at the port of the sampling tube 1 close to the gas processing tube 2, and a second flange 22 is arranged at the port of the gas processing tube 2 close to the sampling tube 1; the first flange 12 is fixedly connected with the second flange 22, and a sealing ring 13 is arranged between the first flange 12 and the second flange 22. The sampling tube 1 and the gas processing tube 2 are fixedly connected through a first flange 12 and a second flange 22, and the sealing ring 13 increases the sealing property of the joint of the sampling tube 1 and the gas processing tube 2.
The second flange 22 is provided with a first air hole 221 and a second air hole 222; the first gas hole 221 and the second gas hole 222 are both located inside the gas processing tube 2; a second one-way valve 223 is arranged on the second air hole 222, a safety valve 224 is arranged on the first air hole 221, and one end of the safety valve 224 close to the sampling tube 1 is fixedly connected with an air storage tank 225; the gas holder 225 is located inside the sampling tube 1. If the electric spark is generated in the combustible gas detection device, the combustible gas in the combustible gas detection device explodes, the safety valve 224 is broken by the pressure generated by explosion, the explosion gas enters the gas storage tank 225, the gas pressure in the explosion-proof sampling probe is relieved, the explosion of the combustible gas in the detected environment caused by the explosion-proof sampling probe of the combustible gas is avoided, and the explosion-proof performance of the explosion-proof sampling probe of the combustible gas is enhanced.
The outer wall of the gas processing pipe 2 is coated with an electric heating wire 23 which is used for heating the gas inside the gas processing pipe 2 and avoiding the condensation of water vapor in the sample gas in the sampling process; the outer wall of the electric heating wire 23 is coated with an adhesive sealing layer 24, the adhesive sealing layer 24 can be an epoxy resin layer or a glue coating layer, and the encapsulating treatment process is adopted, so that the electric heating wire has the characteristics of shock resistance, impact resistance, insulation and the like; the outer wall of the sealant layer 24 is coated with an explosion-proof housing 25, which also enhances the explosion-proof performance of the flammable gas explosion-proof sampling probe.
An explosion-proof gland head 251 is arranged on the explosion-proof shell 25, and an electric wire penetrates through the explosion-proof gland head 251 and is electrically connected with the electric heating wire 23. The explosion-proof gram head 251 is used for fixing and protecting the electric wire, and the stability and the safety of the use of the explosion-proof sampling probe for the combustible gas are improved.
The first flange 12 and the second flange 22 are fixedly connected by screws. The adoption spiro union's mode is favorable to the dismantlement of later stage to be changed and the maintenance, practices thrift the explosion-proof sampling probe maintenance cost of combustible gas.
The inner wall of the sampling tube 1 is circumferentially provided with a filter screen 14, the filter screen 14 can filter dust in the sample gas, and the blockage in the anti-explosion sampling probe for the combustible gas is avoided; the first check valve 11 is screwed on the end part of the sampling tube 1, and the first check valve 11 is unscrewed, so that the filter screen 14 is convenient to replace.
The purge sampling port 21 is screwed to the end of the gas processing pipe 2. The purging sampling port 21 is unscrewed, and the combustible gas explosion-proof sampling probe can be separated from the gas detection device, so that the portability of the combustible gas explosion-proof sampling probe is improved.
The explosion-proof shell 25 is provided with a grounding connector 252, static electricity generated on the combustible gas explosion-proof sampling probe is guided into the ground, and the use safety of the combustible gas explosion-proof sampling probe is improved.
The application provides an explosion-proof sampling probe for combustible gas, which comprises a sampling tube 1; one end of the sampling tube 1 is fixedly connected with a first one-way valve 11, and the other end of the sampling tube is fixedly connected with a gas processing tube 2; one end of the gas processing pipe 2, which is far away from the sampling pipe 1, is fixedly connected with a purging sampling port 21; the purging sampling port 21 is fixedly connected with a gas detection device; a first flange 12 is arranged at the port of the sampling tube 1 close to the gas processing tube 2, and a second flange 22 is arranged at the port of the gas processing tube 2 close to the sampling tube 1; the first flange 12 is fixedly connected with the second flange 22, and a sealing ring 13 is arranged between the first flange 12 and the second flange 22; the second flange 22 is provided with a first air hole 221 and a second air hole 222; the first gas hole 221 and the second gas hole 222 are both located inside the gas processing tube 2; a second one-way valve 223 is arranged on the second air hole 222, a safety valve 224 is arranged on the first air hole 221, and one end of the safety valve 224 close to the sampling tube 1 is fixedly connected with an air storage tank 225; the gas holder 225 is located inside the sampling tube 1; the outer wall of the gas processing pipe 2 is coated with an electric heating wire 23 for heating the gas inside the gas processing pipe 2; the outer wall of the electric heating wire 23 is coated with a sealant layer 24; the outer wall of the sealant layer 24 is coated with an explosion-proof housing 25. By adopting the device, if electric sparks are generated in the combustible gas detection device, the combustible gas in the combustible gas detection device explodes, the safety valve 224 is broken by the pressure generated by explosion, the explosion gas enters the gas storage tank 225, the gas pressure in the explosion-proof sampling probe is relieved, and the explosion of the combustible gas in the detected environment caused by the explosion-proof sampling probe of the combustible gas is avoided.
The technical means disclosed by the scheme of the utility model are not limited to the technical means disclosed by the technical means, and also comprise the technical scheme formed by equivalent replacement of the technical features. The present invention is not limited to the details given herein, but is within the ordinary knowledge of those skilled in the art.
Claims (8)
1. An explosion-proof sampling probe for combustible gas is characterized by comprising a sampling tube (1); one end of the sampling tube (1) is fixedly connected with a first one-way valve (11), and the other end of the sampling tube is fixedly connected with a gas processing tube (2); one end of the gas processing pipe (2) far away from the sampling pipe (1) is fixedly connected with a purging sampling port (21); the purging sampling port (21) is fixedly connected with a gas detection device;
a first flange (12) is arranged at the port of the sampling tube (1) close to the gas processing tube (2), and a second flange (22) is arranged at the port of the gas processing tube (2) close to the sampling tube (1); the first flange (12) is fixedly connected with the second flange (22), and a sealing ring (13) is arranged between the first flange (12) and the second flange (22);
a first air hole (221) and a second air hole (222) are formed in the second flange (22); the first gas hole (221) and the second gas hole (222) are both located inside the gas processing tube (2); a second one-way valve (223) is arranged on the second air hole (222), a safety valve (224) is arranged on the first air hole (221), and one end, close to the sampling tube (1), of the safety valve (224) is fixedly connected with an air storage tank (225); the gas storage tank (225) is positioned inside the sampling tube (1);
the outer wall of the gas processing pipe (2) is coated with an electric heating wire (23) for heating the gas inside the gas processing pipe (2); the outer wall of the electric heating wire (23) is coated with a sealant layer (24); the outer wall of the sealant layer (24) is coated with an explosion-proof shell (25).
2. The explosion-proof sampling probe for combustible gas according to claim 1, wherein the explosion-proof housing (25) is provided with an explosion-proof gram head (251), and an electric wire is arranged in the explosion-proof gram head (251) in a penetrating way and is electrically connected with the electric heating wire (23).
3. The explosion-proof sampling probe of combustible gas of claim 1 wherein the sealant layer (24) is an epoxy layer.
4. A combustible gas explosion-proof sampling probe according to claim 1, characterized in that the first flange (12) and the second flange (22) are fixedly connected by screws.
5. The explosion-proof sampling probe of combustible gas according to claim 1, characterized in that the inner wall of the sampling tube (1) is provided with a filter screen (14) along the circumferential direction.
6. A combustible gas explosion-proof sampling probe according to claim 1, characterized in that the first check valve (11) is screwed to the end of the sampling tube (1).
7. A combustible gas explosion-proof sampling probe according to claim 1, characterized in that the purge sampling port (21) is screwed to the end of the gas processing tube (2).
8. An explosion-proof sampling probe for combustible gas according to claim 1 characterized in that the explosion-proof housing (25) is provided with a ground connection (252).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121188403.5U CN215339125U (en) | 2021-05-28 | 2021-05-28 | Explosion-proof sampling probe of combustible gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121188403.5U CN215339125U (en) | 2021-05-28 | 2021-05-28 | Explosion-proof sampling probe of combustible gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215339125U true CN215339125U (en) | 2021-12-28 |
Family
ID=79549273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121188403.5U Active CN215339125U (en) | 2021-05-28 | 2021-05-28 | Explosion-proof sampling probe of combustible gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215339125U (en) |
-
2021
- 2021-05-28 CN CN202121188403.5U patent/CN215339125U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20120102785A (en) | Flame detecting device | |
| CN106841456A (en) | Malleation purges explosion-proof chromatograph | |
| CN209785222U (en) | Detection assembly of gas detection alarm device | |
| CN215339125U (en) | Explosion-proof sampling probe of combustible gas | |
| JP5260747B2 (en) | Explosion-proof connector | |
| CN107389777A (en) | Explosion-proof hydrogen flames F exiting ID detectors | |
| CN203349930U (en) | Flame-proof integrated flame detector | |
| CN206479512U (en) | A kind of flame-proof type gas detector | |
| CN207539510U (en) | A kind of datonation-inhibition connecting tube | |
| CN214745891U (en) | Remote ultraviolet flame detector for torch | |
| CN212845221U (en) | Explosion-proof hydrogen flame ionization detector for industrial process chromatograph | |
| CN108668478A (en) | A kind of explosion-protection equipment of electromechanical integration | |
| CN211876083U (en) | Composite flame detector | |
| CN210742213U (en) | Flame arrester device of hydrogen flame ionization detector | |
| KR100405008B1 (en) | Check apparatus for the fire detector of the explosion preventive type | |
| CN217278127U (en) | Flame-proof FID detector | |
| CN217237978U (en) | Coal mine goaf spontaneous combustion monitoring devices | |
| CN217954325U (en) | Combustible gas detector | |
| CN207675204U (en) | Explosion-proof transmitter samples air chamber structure | |
| CN207112529U (en) | A kind of Antiexplosive working lamp | |
| CN211086075U (en) | Oil gas concentration detection device | |
| CN213456833U (en) | Point type combustible gas detector | |
| CN217277864U (en) | Correlation formula integration laser gas sensor | |
| CN206726423U (en) | Explosion-proof type flammable gas-detecting alarm device | |
| CN217277865U (en) | Correlation disconnect-type laser gas sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |