CN204201467U - Flammable explosive gas quantitative proportioning small flow safe output device - Google Patents
Flammable explosive gas quantitative proportioning small flow safe output device Download PDFInfo
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- CN204201467U CN204201467U CN201420497904.5U CN201420497904U CN204201467U CN 204201467 U CN204201467 U CN 204201467U CN 201420497904 U CN201420497904 U CN 201420497904U CN 204201467 U CN204201467 U CN 204201467U
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Abstract
The utility model discloses a kind of flammable explosive gas quantitative proportioning small flow safe output device, comprise constant voltage compressing device (1), explosion-proof tank (2) and gas proportion mixing control gear (3); Explosion-proof tank comprises cover (21) and tank body (22), cover is provided with constant voltage suction port (211), pressure relief opening (212), dry air air outlet (213) and flammable explosive gas air outlet (214), and tank body (22) inside is provided with dismountable middle compartment (221); Gas proportion mixing control gear (3) comprises dry air bag (31), flammable explosive gas bag (32), dry air air pipe (33), flammable explosive gas air pipe (34) and mixer (35), and mixer is connected with testing inspection instrument by output pipe.Safety output unit structure is simple, the mixed gas of safe storage and conveying flammable explosive gas and air while can realizing constant voltage proportioning.
Description
Technical field
The utility model relates to a kind of gasometry proportioning small flow safe output device, specifically be applicable to a gasometry proportioning small flow safe output device for the flammable explosive gas scientific experimentations such as methane, hydrogen, carbon monoxide, belong to flammable explosive gas proportioning export technique field.
Background technique
The gas that the difference of 10% or upper explosive limit and lower limit that the lower explosion limit mixed with air is less than volume ratio is greater than 20% is referred to as flammable explosive gas, although the understanding of people to flammable explosive gas such as methane, hydrogen, carbon monoxide is more and more deep, but it is clear not to still have considerable characteristic to be familiar with, and therefore needs to carry out a large amount of scientific experimentations.
Flammable explosive gas is blasted generally must meet three conditions, certain gas concentration, sufficient oxygen and high temperature burning things which may cause a fire disaster, but the flammable explosive gas in test often in Water demand explosion limits and the mixed gas of air or oxygen, analytic process is abnormally dangerous, therefore, store and carry the mixed gas of flammable explosive gas and air simultaneously safely and the device of different mixing gas atmosphere and proportioning can be provided to prevent from burning, the generation of even explosive accident, just become the problem that first scientific research personnel will consider.
In process of the test, different tests often needs the small flow mixed gas exporting different air pressure, and existing equipment is as air pump etc., is difficult to meet constant voltage, the explosion-proof output requirement with different ratio gas.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of flammable explosive gas quantitative proportioning small flow safe output device, and structure is simple, the mixed gas of safe storage and conveying flammable explosive gas and air while can realizing constant voltage proportioning.
To achieve these goals, this flammable explosive gas quantitative proportioning small flow safe output device comprises constant voltage compressing device, explosion-proof tank and gas proportion mixing control gear;
Described constant voltage compressing device comprises air compressor and reduction valve, and reduction valve is arranged at the outlet side of air compressor;
Described explosion-proof tank comprises cover and tank body, cover is connected by bindiny mechanism is airtight with tank body, cover is provided with constant voltage suction port, pressure relief opening, dry air air outlet and flammable explosive gas air outlet, constant voltage suction port and pressure relief opening are equipped with stop valve, dry air air outlet and flammable explosive gas air outlet are equipped with Flow valve, and constant voltage suction port is communicated with reduction valve by pipeline;
Tank body has airtight cavity shape structure, and cavity shape structure inside is provided with dismountable middle compartment, and middle compartment is provided with openwork hole;
Described gas proportion mixing control gear comprises dry air bag, flammable explosive gas bag, dry air air pipe, flammable explosive gas air pipe and mixer, dry air bag is arranged at below middle compartment or top, is connected with dry air air outlet is airtight by pneumatic tube;
Flammable explosive gas bag is arranged at above or below middle compartment, is connected with flammable explosive gas air outlet is airtight by pneumatic tube;
Dry air air pipe is connected dry air air outlet and flammable explosive gas air outlet respectively with one end of flammable explosive gas air pipe, the other end all connects mixer, and dry air air pipe and flammable explosive gas air pipe are equipped with flowmeter and pressure reading mechanism;
Mixer is connected with testing inspection instrument by output pipe.
As further improvement of the utility model scheme, described reduction valve adopts electromagnetic relief pressure valve, stop valve on described constant voltage suction port and pressure relief opening adopts electromagnet cut off valve, Flow valve on described dry air air outlet and flammable explosive gas air outlet adopts electromagnetic flow valve, flowmeter on described dry air air pipe and flammable explosive gas air pipe and pressure reading mechanism inside are respectively equipped with flow transducer and pressure transducer, also comprise electrical control mechanism, electrical control mechanism comprises central processing unit (CPU), Isobarically Control loop, dry air flow control circuit and other flow control circuits inflammable and explosive, central processing unit (CPU) respectively with air compressor 11, electromagnetic relief pressure valve, electromagnet cut off valve on constant voltage suction port and pressure relief opening, dry air air pipe, electromagnetic flow valve on dry air air outlet and flammable explosive gas air outlet, flow transducer on flammable explosive gas air pipe and pressure transducer electrical connection.
As further improvement of the utility model scheme, the cavity shape structure inside of described tank body is also provided with dismountable upper compartment and lower compartment, upper compartment and lower compartment are equipped with openwork hole, described dry air bag is arranged between middle compartment and lower compartment or between middle compartment and upper compartment, and described flammable explosive gas bag is arranged between middle compartment and upper compartment or between middle compartment and lower compartment.
As further improvement of the utility model scheme, be provided with stirrer in described mixer, stirrer connects the driving mechanism of mixer outside.
As further improvement of the utility model scheme, described middle compartment, upper compartment and lower compartment are screen net structures.
Compared with prior art, this flammable explosive gas quantitative proportioning small flow safe output device realizes extruding the dry air bag and flammable explosive gas bag that are positioned at explosion-proof tank because employing inputs constant air pressure in explosion-proof tank, and then realizes the constant voltage proportioning of dry air and flammable explosive gas; According to the data feedback of flowmeter and pressure reading mechanism, by the dry air and the flammable explosive gas mixed gas that regulate the Flow valve on dry air air outlet and flammable explosive gas air outlet can obtain different ratio at the output terminal of mixer; Whole apparatus structure is simple, and airtight connection, puts an end to the fire source, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, constant voltage compressing device, 11, air compressor, 12, reduction valve, 2, explosion-proof tank, 21, cover, 211, constant voltage suction port, 212, pressure relief opening, 213, dry air air outlet, 214, flammable explosive gas air outlet, 22, tank body, 221, middle compartment, 222, upper compartment, 223, lower compartment, 23, bindiny mechanism, 3, gas proportion mixing control gear, 31, dry air bag, 32, flammable explosive gas bag, 33, dry air air pipe, 34, flammable explosive gas air pipe, 35, mixer, 4, electrical control mechanism.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, this flammable explosive gas quantitative proportioning small flow safe output device comprises constant voltage compressing device 1, explosion-proof tank 2 and gas proportion mixing control gear 3.
Described constant voltage compressing device 1 comprises air compressor 11 and reduction valve 12, and reduction valve 12 is arranged at the outlet side of air compressor 11.
Described explosion-proof tank 2 comprises cover 21 and tank body 22, cover 21 is connected by bindiny mechanism 23 is airtight with tank body 22, cover 21 is provided with constant voltage suction port 211, pressure relief opening 212, dry air air outlet 213 and flammable explosive gas air outlet 214, constant voltage suction port 211 and pressure relief opening 212 are equipped with stop valve, dry air air outlet 213 and flammable explosive gas air outlet 214 are equipped with Flow valve, and constant voltage suction port 211 is communicated with reduction valve 12 by pipeline;
Tank body 22 has airtight cavity shape structure, and cavity shape structure inside is provided with dismountable middle compartment 221, and middle compartment 221 is provided with openwork hole.
Described gas proportion mixing control gear 3 comprises dry air bag 31, flammable explosive gas bag 32, dry air air pipe 33, flammable explosive gas air pipe 34 and mixer 35, dry air bag 31 is arranged at below middle compartment 221 or top, is connected with dry air air outlet 213 is airtight by pneumatic tube;
Flammable explosive gas bag 32 is arranged at above or below middle compartment 221, is connected with flammable explosive gas air outlet 214 is airtight by pneumatic tube;
Dry air air pipe 33 is connected dry air air outlet 213 and flammable explosive gas air outlet 214 respectively with one end of flammable explosive gas air pipe 34, the other end all connects mixer 35, and dry air air pipe 33 and flammable explosive gas air pipe 34 are equipped with flowmeter and pressure reading mechanism;
Mixer 35 is connected with testing inspection instrument by output pipe.
Before the work of this flammable explosive gas quantitative proportioning small flow safe output device, first the dry air bag 31 and flammable explosive gas bag 32 that are filled with dry air and flammable explosive gas are placed in tank body 22 respectively, respectively with the dry air air outlet 213 on cover 21 and flammable explosive gas air outlet 214 is airtight be connected after, airtight connection cover 21 and tank body 22 can start proportioning.
Start air compressor 11, open constant voltage suction port 211 and pressure relief opening 212, regulate the delivery pressure of reduction valve 12, namely air compressor 11 inputs constant air pressure extruding stem air bag 31 and flammable explosive gas bag 32 by reduction valve 12 in tank body 22, open the Flow valve on dry air air outlet 213 and flammable explosive gas air outlet 214, dry air and flammable explosive gas are namely respectively from dry air bag 31, flammable explosive gas bag 32 flows into dry air air pipe 33 through respective pneumatic tube, flammable explosive gas air pipe 34, finally arrive mixer 35, dry air and flammable explosive gas can use after mixing in mixer 35, data feedback according to flowmeter and pressure reading mechanism regulates the Flow valve on dry air air outlet 213 and flammable explosive gas air outlet 214 can obtain dry air and the flammable explosive gas mixed gas of different ratio at the output terminal of mixer 35.
Because inflammable gas and dry air married operation have danger, therefore in order to ensure the Security operated, as further improvement of the utility model scheme, described reduction valve 12 adopts electromagnetic relief pressure valve, stop valve on described constant voltage suction port 211 and pressure relief opening 212 adopts electromagnet cut off valve, Flow valve on described dry air air outlet 213 and flammable explosive gas air outlet 214 adopts electromagnetic flow valve, flowmeter on described dry air air pipe 33 and flammable explosive gas air pipe 34 and pressure reading mechanism inside are respectively equipped with flow transducer and pressure transducer, also comprise electrical control mechanism 4, electrical control mechanism 4 comprises central processing unit (CPU), Isobarically Control loop, dry air flow control circuit and other flow control circuits inflammable and explosive, central processing unit (CPU) respectively with air compressor 11, electromagnetic relief pressure valve, electromagnet cut off valve on constant voltage suction port 211 and pressure relief opening 212, dry air air pipe 33, electromagnetic flow valve on dry air air outlet 213 and flammable explosive gas air outlet 214, flow transducer on flammable explosive gas air pipe 34 and pressure transducer electrical connection, like this, during the work of this flammable explosive gas quantitative proportioning small flow safe output device, long-rangely by central processing unit (CPU), each stop valve and Flow valve can be controlled, timely adjustment outlet pressure and flow different proportionings can be realized by the feedback of flow transducer and pressure transducer.
Bending is caused because placement location is improper in order to prevent the pneumatic tube of dry air bag 31 and flammable explosive gas bag 32, and then cause air-flow not smooth, as further improvement of the utility model scheme, the cavity shape structure inside of described tank body 22 is also provided with dismountable upper compartment 222 and lower compartment 223, upper compartment 222 and lower compartment 223 are equipped with openwork hole, described dry air bag 31 is arranged between middle compartment 221 and lower compartment 223 or between middle compartment 221 and upper compartment 222, described flammable explosive gas bag 32 is arranged between middle compartment 221 and upper compartment 222 or between middle compartment 221 and lower compartment 223, pneumatic tube passes in the openwork hole of correct position, namely compartment plays a supporting role to pneumatic tube, prevent its bending, ensure that ventilation is smooth and easy.
In order to ensure dry air and flammable explosive gas Homogeneous phase mixing in mixer 35 further, as further improvement of the utility model scheme, stirrer is provided with in described mixer 35, stirrer connects the driving mechanism of mixer 35 outside, driving mechanism can drive stirrer at mixer 35 internal rotating, is uniformly mixed gas.
Affect to reduce the constraint of compartment on dry air bag 31 and flammable explosive gas bag 32 further, as further improvement of the utility model scheme, described middle compartment 221, upper compartment 222 and lower compartment 223 are screen net structures.
This flammable explosive gas quantitative proportioning small flow safe output device can realize the constant voltage proportioning of dry air and flammable explosive gas; According to the data feedback of flowmeter and pressure reading mechanism, by the dry air and the flammable explosive gas mixed gas that regulate the Flow valve on dry air air outlet and flammable explosive gas air outlet can obtain different ratio at the output terminal of mixer; Whole apparatus structure is simple, and airtight connection, puts an end to the fire source, safe and reliable.
Claims (5)
1. a flammable explosive gas quantitative proportioning small flow safe output device, comprise constant voltage compressing device (1), explosion-proof tank (2) and gas proportion mixing control gear (3), constant voltage compressing device (1) comprises air compressor (11) and reduction valve (12), reduction valve (12) is arranged at the outlet side of air compressor (11), it is characterized in that
Described explosion-proof tank (2) comprises cover (21) and tank body (22), cover (21) is connected by bindiny mechanism (23) is airtight with tank body (22), cover (21) is provided with constant voltage suction port (211), pressure relief opening (212), dry air air outlet (213) and flammable explosive gas air outlet (214), constant voltage suction port (211) and pressure relief opening (212) are equipped with stop valve, dry air air outlet (213) and flammable explosive gas air outlet (214) are equipped with Flow valve, constant voltage suction port (211) is communicated with reduction valve (12) by pipeline, tank body (22) has airtight cavity shape structure, and cavity shape structure inside is provided with dismountable middle compartment (221), and middle compartment (221) is provided with openwork hole,
Described gas proportion mixing control gear (3) comprises dry air bag (31), flammable explosive gas bag (32), dry air air pipe (33), flammable explosive gas air pipe (34) and mixer (35), dry air bag (31) is arranged at middle compartment (221) below or top, is connected with dry air air outlet (213) are airtight by pneumatic tube; Flammable explosive gas bag (32) is arranged at above or below middle compartment (221), is connected with flammable explosive gas air outlet (214) are airtight by pneumatic tube; Dry air air pipe (33) and one end of flammable explosive gas air pipe (34) are connected dry air air outlet (213) and flammable explosive gas air outlet (214) respectively, the other end all connects mixer (35), and dry air air pipe (33) and flammable explosive gas air pipe (34) are equipped with flowmeter and pressure reading mechanism; Mixer (35) is connected with testing inspection instrument by output pipe.
2. flammable explosive gas quantitative proportioning small flow safe output device according to claim 1, it is characterized in that, described reduction valve (12) adopts electromagnetic relief pressure valve, stop valve on described constant voltage suction port (211) and pressure relief opening (212) adopts electromagnet cut off valve, Flow valve on described dry air air outlet (213) and flammable explosive gas air outlet (214) adopts electromagnetic flow valve, flowmeter on described dry air air pipe (33) and flammable explosive gas air pipe (34) and pressure reading mechanism inside are respectively equipped with flow transducer and pressure transducer, also comprise electrical control mechanism (4), electrical control mechanism (4) comprises central processing unit (CPU), Isobarically Control loop, dry air flow control circuit and other flow control circuits inflammable and explosive, central processing unit (CPU) respectively with air compressor (11), electromagnetic relief pressure valve, electromagnet cut off valve on constant voltage suction port (211) and pressure relief opening (212), dry air air pipe (33), electromagnetic flow valve on dry air air outlet (213) and flammable explosive gas air outlet (214), flow transducer on flammable explosive gas air pipe (34) and pressure transducer electrical connection.
3. flammable explosive gas quantitative proportioning small flow safe output device according to claim 1 and 2, it is characterized in that, the cavity shape structure inside of described tank body (22) is also provided with dismountable upper compartment (222) and lower compartment (223), upper compartment (222) and lower compartment (223) are equipped with openwork hole, described dry air bag (31) is arranged between middle compartment (221) and lower compartment (223) or between middle compartment (221) and upper compartment (222), described flammable explosive gas bag (32) is arranged between middle compartment (221) and upper compartment (222) or between middle compartment (221) and lower compartment (223), pneumatic tube passes in the openwork hole of correct position.
4. flammable explosive gas quantitative proportioning small flow safe output device according to claim 1 and 2, is characterized in that, is provided with stirrer in described mixer (35), and stirrer connects the outside driving mechanism of mixer (35).
5. flammable explosive gas quantitative proportioning small flow safe output device according to claim 3, is characterized in that, described middle compartment (221), upper compartment (222) and lower compartment (223) are screen net structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497904.5U CN204201467U (en) | 2014-09-01 | 2014-09-01 | Flammable explosive gas quantitative proportioning small flow safe output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497904.5U CN204201467U (en) | 2014-09-01 | 2014-09-01 | Flammable explosive gas quantitative proportioning small flow safe output device |
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| Publication Number | Publication Date |
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| CN204201467U true CN204201467U (en) | 2015-03-11 |
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| CN201420497904.5U Expired - Fee Related CN204201467U (en) | 2014-09-01 | 2014-09-01 | Flammable explosive gas quantitative proportioning small flow safe output device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514497A (en) * | 2020-04-09 | 2021-10-19 | 北京市劳动保护科学研究所 | Method for controlling humidity of flammable and explosive gas mixture |
-
2014
- 2014-09-01 CN CN201420497904.5U patent/CN204201467U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514497A (en) * | 2020-04-09 | 2021-10-19 | 北京市劳动保护科学研究所 | Method for controlling humidity of flammable and explosive gas mixture |
| CN113514497B (en) * | 2020-04-09 | 2024-04-19 | 北京市科学技术研究院城市安全与环境科学研究所 | Method for controlling humidity of inflammable and explosive gas mixture |
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| C14 | Grant of patent or utility model | ||
| 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: 20150311 Termination date: 20160901 |