CN216847725U - Explosion-proof type environmental air quality monitoring micro station - Google Patents
Explosion-proof type environmental air quality monitoring micro station Download PDFInfo
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- CN216847725U CN216847725U CN202220253448.4U CN202220253448U CN216847725U CN 216847725 U CN216847725 U CN 216847725U CN 202220253448 U CN202220253448 U CN 202220253448U CN 216847725 U CN216847725 U CN 216847725U
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Abstract
The utility model discloses an explosion-proof type environmental air quality monitoring miniature station relates to the air monitoring equipment field, include: the explosion-proof energy-saving gas transmission system comprises a box body, a main control unit with explosion-proof capacity, a gas sensing unit and a gas transmission unit, wherein one end of the gas transmission unit is communicated with the external environment, the other end of the gas transmission unit is connected with the gas sensing unit, the gas sensing unit is electrically connected with the main control unit, and the gas sensing unit and the gas transmission unit are connected with a power supply system through safety barriers for limiting energy to a low current intrinsic safety level; the utility model discloses well gas sensing unit and gas conveying unit all are connected with power supply system through the safety barrier for gas sensing unit and gas conveying unit become this ampere of type unit, combine the main control unit that has explosion-proof ability, can blast by fundamentally, have avoided opening the box when equipment maintenance or part are changed, and the problem of the internal explosion that takes place of ambient air admission box has improved the security that the device was used at explosion-proof area greatly.
Description
Technical Field
The utility model relates to an air monitering equipment field especially relates to a miniature station of explosion-proof type ambient air quality monitoring.
Background
Along with the increasing of the adjustment force of the national industrial structure, the upgrading and transformation range of energy conservation and emission reduction is expanded continuously, the country not only requires the total amount of pollutants to reach the standard and the emission to reach the standard for enterprises, but also implements pollution discharge monitoring and monitoring, and pays more attention to environmental protection advance prediction, process analysis and risk management and control.
From the development trend in future, environmental protection management is gradually moving to the direction of informatization, visualization, intellectualization and high efficiency, and the miniature ambient air monitoring station is used for collecting the emission types and data of pollutants in the environment and monitoring the operation condition of pollution treatment facilities, so that the environment monitoring management platform with all-around, real-time performance and capability of being created is facilitated, and the environmental protection management level of enterprises is improved.
The environmental air quality micro station is a kind of miniaturized environmental air quality monitoring equipment using sensor as detector, and compared with traditional atmospheric air station, it has the advantages of small volume, low cost, convenient arrangement, etc., and is also the main equipment for environment gridding monitoring in city and industrial park.
But in some specific industrial places, for example petrochemical industry factory, coal chemical industry enterprise, medicine refining enterprise etc. there is explosion-proof region, therefore the miniature station of ambient air installs and must relate to the explosion-proof problem of electrical equipment in these enterprises, and traditional explosion-proof mode is whole explosion-proof formula, and whole equipment is heavy, and is bulky, and the explosion-proof box needs to be opened to equipment change consumptive material spare part, difficult maintenance.
The application number is "202022028386.0", the name is "an air monitor with stable base and high sensitivity" the utility model discloses an air monitor, it keeps away from third device shell one end at the door body and installs the explosion-proof toughened glass who runs through a body, guarantee the security of inner member through explosion-proof toughened glass, but explosion-proof toughened glass's cost is higher, and its inner member needs to be changed, use when explosion-proof region when the device, need open explosion-proof toughened glass when changing the inner member, the external gas still can contact the inner member, there is the risk of explosion.
The utility model discloses an application number is "202120770384.0", and the name is "chemical industry garden air monitor" discloses an air monitor, and gas sampling system and monitoring system all set up inside the explosion-proof box of metal, be equivalent to for whole flame proof formula, have the whole equipment heaviness, bulky problem, and the cost is higher moreover, need open explosion-proof case when changing the internal component in addition, and external gas still can contact inside gas sampling system and monitoring system, has the risk of explosion.
Therefore, an explosion-proof type environmental air quality monitoring micro station with high safety and low cost is urgently needed.
Disclosure of Invention
The utility model aims at providing a miniature station of explosion-proof type ambient air quality monitoring to solve the problem that above-mentioned prior art exists, adopt the main control unit flame proof, and combine this ampere of type gas sensing unit and gas delivery unit, fundamentally has solved the problem that the external air enters into the box and easily causes the explosion, and it is explosion-proof to advance to set up the main control unit moreover, has reduced explosion-proof material's use, has reduced the cost of device.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides an explosion-proof type environmental air quality monitoring micro-station, including box, main control unit, at least one gas sensing unit and the gas conveying unit that has explosion-proof ability, the main control unit and the gas sensing unit all sets up in the box, gas conveying unit one end intercommunication external environment, the other end with the gas sensing unit is connected, the gas sensing unit with the main control unit electricity is connected, the gas sensing unit and the gas conveying unit is all connected with power supply system through being used for limit energy to the low-current intrinsically safe rank safety grid.
Preferably, the power supply circuit of the main control unit is arranged in the stainless steel explosion-proof pipe.
Preferably, the main control unit comprises an internal element, an upper cover and a lower cover which are used for forming a cavity for protecting the internal element, the upper cover and the lower cover are both made of stainless steel, and the upper cover is connected with the lower cover through bolts.
Preferably, the internal component includes a circuit board and a display screen for displaying various data, the upper cover is provided with an explosion-proof glass window at a position corresponding to the display screen, one side of the lower cover is provided with a wireless communication antenna for transmitting data to the terminal device, the wireless communication antenna is electrically connected with the circuit board, and a signal output end of the wireless communication antenna is located outside the box body.
Preferably, a plurality of magnetic control switches are arranged on the circuit board and correspond to the explosion-proof glass window.
Preferably, one side of the box body, which corresponds to the explosion-proof glass window, is provided with an opening and closing door, and the opening and closing door is made of transparent materials.
Preferably, the gas conveying unit comprises a gas inlet pipeline, a standard gas pipeline and a gas exhaust pipeline, one end of the gas inlet pipeline extends out of the box body and is communicated with the outside atmosphere, the other end of the gas inlet pipeline is communicated with the gas inlet of the gas sensing unit through a three-way valve, a gas suction pump is arranged on the gas inlet pipeline, a gas outlet of the gas sensing unit is communicated with the outside atmosphere through the gas exhaust pipeline, one end of the standard gas pipeline extends out of the box body, and the other end of the standard gas pipeline is communicated with the gas inlet of the gas sensing unit through the three-way valve.
Preferably, a first filter for steam-water separation and large-particle dust removal is arranged at the air inlet end of the air inlet pipeline, and a second filter for filtering fine particles is arranged between the air suction pump and the air inlet pipe.
Preferably, the box body is made of metal or hard plastic.
Preferably, the box body is provided with an air inlet corresponding to the position of the main control unit and an air outlet corresponding to the air inlet.
The utility model discloses for prior art gain following technological effect:
1. the utility model discloses well gas sensing unit and gas conveying unit are all connected with power supply system through being used for limit can to the safe bars of low-current intrinsic safety rank, make gas sensing unit and gas conveying unit become intrinsic safety type unit, the combination has the main control unit of blast proof ability, can blast proof by fundamentally, the box has been avoided opening when equipment maintenance or part are changed, the problem of explosion taking place in the external air gets into the box, the device has been improved greatly and has been used at explosion-proof region's security, and only set up the main control unit and use explosion-proof material, compare in the box and use explosion-proof material, the use of explosion-proof material has been saved, the manufacturing cost of integrated device has been reduced.
2. The utility model discloses well main control unit's power supply circuit sets up in stainless steel explosion-proof pipe, prevents main control unit's power supply circuit and external gas contact when the power supply, has further improved the security height of device.
3. The utility model discloses in set up magnetic control switch, can control magnetic control switch through the magnetic stick and set up under the condition of not opening the upper cover, improved the safety in utilization.
4. The utility model discloses in set up the impurity that first filter and second filter can effective filtration air, avoid impurity to cause the influence to gas sensor's detection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic structural view of an explosion-proof environmental air quality monitoring micro-station of the present invention;
fig. 2 is a schematic structural diagram of the main control unit of the present invention;
wherein, 1, a box body; 2. a main control unit; 3. a gas sensing unit; 4. a stainless steel explosion-proof tube; 5. an upper cover; 6. a lower cover; 7. a display screen; 8. an explosion-proof glass window; 9. a wireless communication antenna; 10. a magnetic control switch; 11. an air intake line; 12. a standard gas pipeline; 13. an exhaust line; 14. a three-way valve; 15. a first filter; 16. a second filter; 17. an air inlet; 18. and (7) air outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a miniature station of explosion-proof type ambient air quality monitoring to solve the problem that prior art exists, adopt the main control unit flame proof, and combine this ampere of type gas sensing unit and gas delivery unit, fundamentally has solved the problem that the external air enters into the box and easily causes the explosion, and it is explosion-proof to advance to set up the main control unit moreover, has reduced explosion-proof material's use, has reduced the cost of device.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1-2, an explosion-proof environmental air quality monitoring micro station is provided, which includes a box 1, a main control unit 2 with explosion-proof capability, at least one gas sensing unit 3 and a gas delivery unit, wherein the main control unit 2 and the gas sensing unit 3 are both disposed in the box 1, one end of the gas delivery unit is connected to the external environment, the other end of the gas delivery unit is connected to the gas sensing unit 3, the gas sensing unit 3 is electrically connected to the main control unit 2, the gas sensing unit 3 and the gas delivery unit are respectively connected to a power supply system through or share a safety barrier for limiting energy to a low current intrinsic safety level, so that the gas sensing unit 3 and the gas delivery unit become intrinsic safety units, and the explosion-proof is fundamentally performed by combining the main control unit 2 with explosion-proof capability, thereby avoiding opening the box 1 during equipment maintenance or part replacement, the problem that the external air enters the box body 1 to explode is solved, the safety of the device applied to an explosion-proof area is greatly improved, and only the main control unit 2 is arranged to use an explosion-proof material, so that compared with the case body 1 which uses the explosion-proof material, the explosion-proof material is saved, and the production cost of the whole device is reduced.
The gas sensing unit 3 is a sensor component for detecting gas data, and the specific arrangement may be a gas chamber having a gas inlet and a gas outlet, and a gas sensor is arranged in the gas chamber.
In this embodiment, two gas sensor units 3 are installed, each being an intrinsic safety type three-parameter gas sensor unit (for detecting VOCs, NH3, and H)2S three gases), intrinsic safety type four-parameter gas sensing unit (for detecting SO)2NOx, CO and O3Four kinds of gas), other kinds of gas sensing units 3 may be replaced according to actual needs.
In the embodiment, the safety barrier circuit mainly comprises a 1k/0.2w current-limiting resistor, a voltage-stabilizing tube MM1Z5V1 and a self-recovery fuse JK-SMD06030020, and interfaces of the gas sensing unit 3 and the gas conveying unit are connected with a sensor probe of the safety barrier interface circuit, so that the integral explosion prevention of the equipment is realized.
Because the main control unit 2 needs great voltage to supply power, and its supply circuit also has the risk of detonating surrounding gas, consequently sets up the supply circuit of main control unit 2 in stainless steel explosion-proof tube 4, prevents that the supply circuit of main control unit 2 from contacting with external gas when the power supply, has further improved the security height of device.
The main control unit 2 comprises an internal element, and an upper cover 5 and a lower cover 6 which are used for forming a cavity for protecting the internal element, wherein the upper cover 5 and the lower cover 6 are made of stainless steel or other explosion-proof materials, the upper cover 5 is in bolt connection with the lower cover 6, and the specific bolt connection positions can be four corners of the upper cover 5 and the lower cover 6.
In order to facilitate the staff to look over gas data, internal component includes the circuit board and is used for showing display screen 7 of each item data, the position that upper cover 5 corresponds display screen 7 is provided with explosion- proof glass window 8, 6 one side of lower cover is provided with the wireless communication antenna 9 with data transmission to terminal equipment, wireless communication antenna 9 is connected with the circuit board electricity, and wireless communication antenna 9's signal output part is located the box 1 outside, wireless communication antenna 9 is with information transfer to external terminal, the staff can be at the terminal or see through explosion-proof glass window 8 and observe gas data.
Be provided with a plurality of magnetic control switch 10 on the circuit board, magnetic control switch 10 corresponds explosion-proof glass window 8 and sets up, can control magnetic control switch 10 through the magnetic rod and set up under the condition of not opening upper cover 5, has improved the safety in utilization.
One side of the box body 1 corresponding to the explosion-proof glass window 8 is provided with an opening and closing door which is made of transparent materials, or the position of the opening and closing door corresponding to the explosion-proof glass window 8 is provided with a glass window, and data on the internal display screen 7 can be directly seen from the outside.
The gas conveying unit comprises a gas inlet pipeline 11, a standard gas pipeline 12 and a gas exhaust pipeline 13, one end of the gas inlet pipeline 11 extends out of the box body 1 and is communicated with the outside atmosphere, the other end of the gas inlet pipeline is communicated with a gas inlet of the gas sensing unit 3 through a three-way valve 14, a gas suction pump is arranged on the gas inlet pipeline 11, a gas outlet of the gas sensing unit 3 is communicated with the outside atmosphere through the gas exhaust pipeline 13, one end of the standard gas pipeline 12 extends out of the box body 1, the other end of the standard gas pipeline is communicated with the gas inlet of the gas sensing unit 3 through the three-way valve 14, the gas suction pump is connected with a power supply system through a safety grid, and the path conversion of the three-way valve 14 is controlled by the main control unit 2.
The air inlet end of the air inlet pipeline 11 is provided with a first filter 15 for steam-water separation and large-particle dust removal, a second filter 16 for filtering fine particles is arranged between the air extracting pump and the air inlet pipe, the first filter 15 and the second filter 16 are arranged to effectively filter impurities in air, and the detection of the gas sensor by the impurities is prevented from being influenced.
The box 1 is made of metal or hard plastic and the like, and an explosion-proof material is not selected, so that the cost is reduced, and in addition, when the box 1 is made of metal, a layer of anti-corrosion spray plastics is additionally arranged on the metal, so that the anti-corrosion effect of the box 1 is improved.
In order to ensure normal heat dissipation of each internal component, the box body 1 is provided with an air inlet 17 corresponding to the position of the main control unit 2 and an air outlet 18 corresponding to the air inlet 17, and a fan can be arranged at the air inlet 17 or the air outlet 18 to increase the heat dissipation speed.
The outside of air intake 17 and air outlet 18 all sets up the safety cover, and the safety cover lower extreme opening sets up.
In the actual use process, the main control unit 2 controls the standard gas pipeline 12 to be communicated with the gas sensing unit 3, standard gas is supplied into an inner cavity by using external gas supply equipment, a gas sensor in the gas sensing unit 3 is calibrated, then the standard gas pipeline 12 is controlled to be disconnected with a gas inlet pipe, the gas inlet pipeline 11 is controlled to be communicated with the gas sensing unit 3, a gas suction pump is started to suck external air, the external air enters the gas sensing unit 3 after being filtered by the first filter 15 and the second filter 16, the gas sensor in the gas sensing unit 3 detects gas and transmits the data to the main control unit 2, finally, the data are displayed on the display screen 7 and are transmitted to an external terminal through the wireless communication antenna 9, and the detected gas is discharged through the gas exhaust pipeline 13; when the box body 1 is opened for equipment maintenance and equipment replacement, the main control unit 2 does not cause explosion due to the existence of the upper cover 5, the lower cover 6 and the stainless steel explosion-proof pipe 4, and elements such as the gas sensing unit 3, the air pump and the like are limited by the safety barrier, so that the gas sensing unit is changed into an intrinsically safe structure, the explosion is not caused, and workers can safely maintain and replace the gas sensing unit.
The adaptability that carries out according to actual demand all is in the protection scope of the utility model.
It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can 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 invention 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.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. The utility model provides an explosion-proof type environmental air quality monitoring micro-station, its characterized in that, includes the box, has main control unit, at least one gas sensing unit and the gas delivery unit of explosion-proof ability, the main control unit and the gas sensing unit all sets up in the box, gas delivery unit one end intercommunication external environment, the other end with the gas sensing unit is connected, the gas sensing unit with the main control unit electricity is connected, the gas sensing unit and the gas delivery unit is all connected with power supply system through being used for the energy limit to the safety barrier of low-current intrinsic safety level.
2. The explosion-proof type ambient air quality monitoring micro station according to claim 1, wherein the power supply circuit of the main control unit is disposed within a stainless steel explosion-proof tube.
3. The explosion-proof type ambient air quality monitoring micro station according to claim 1, wherein the main control unit comprises an internal element, an upper cover and a lower cover which are used for forming a chamber for protecting the internal element, the upper cover and the lower cover are both made of stainless steel, and the upper cover is connected with the lower cover through a bolt.
4. The explosion-proof type environmental air quality monitoring micro station as claimed in claim 3, wherein the internal components comprise a circuit board and a display screen for displaying various data, an explosion-proof glass window is arranged at a position of the upper cover corresponding to the display screen, a wireless communication antenna for transmitting data to a terminal device is arranged at one side of the lower cover, the wireless communication antenna is electrically connected with the circuit board, and a signal output end of the wireless communication antenna is positioned outside the box body.
5. The explosion-proof type environmental air quality monitoring micro station as claimed in claim 4, wherein a plurality of magnetic control switches are arranged on the circuit board, and the magnetic control switches are arranged corresponding to the explosion-proof glass window.
6. The explosion-proof type environmental air quality monitoring micro station as claimed in claim 4, wherein one surface of the box body corresponding to the explosion-proof glass window is provided with an opening and closing door, and the opening and closing door is made of transparent material.
7. The explosion-proof type environmental air quality monitoring micro station as claimed in claim 1, wherein the gas delivery unit comprises an air inlet pipeline, a standard gas pipeline and an air outlet pipeline, one end of the air inlet pipeline extends out of the box body and is communicated with the external atmosphere, the other end of the air inlet pipeline is communicated with an air inlet of the gas sensing unit through a three-way valve, an air pump is arranged on the air inlet pipeline, an air outlet of the gas sensing unit is communicated with the external atmosphere through the air outlet pipeline, one end of the standard gas pipeline extends out of the box body, and the other end of the standard gas pipeline is communicated with the air inlet of the gas sensing unit through a three-way valve.
8. The explosion-proof type environmental air quality monitoring micro station as claimed in claim 7, wherein a first filter for steam-water separation and large particle dust removal is arranged at the air inlet end of the air inlet pipeline, and a second filter for filtering fine particles is arranged between the air suction pump and the air inlet pipe.
9. The explosion-proof type ambient air quality monitoring micro-station of claim 1, wherein the box is made of metal or hard plastic.
10. The explosion-proof type environmental air quality monitoring micro station as claimed in claim 1, wherein an air inlet corresponding to the position of the main control unit and an air outlet corresponding to the air inlet are arranged on the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220253448.4U CN216847725U (en) | 2022-02-08 | 2022-02-08 | Explosion-proof type environmental air quality monitoring micro station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220253448.4U CN216847725U (en) | 2022-02-08 | 2022-02-08 | Explosion-proof type environmental air quality monitoring micro station |
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| Publication Number | Publication Date |
|---|---|
| CN216847725U true CN216847725U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220253448.4U Active CN216847725U (en) | 2022-02-08 | 2022-02-08 | Explosion-proof type environmental air quality monitoring micro station |
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| Country | Link |
|---|---|
| CN (1) | CN216847725U (en) |
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2022
- 2022-02-08 CN CN202220253448.4U patent/CN216847725U/en active Active
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