CN210269603U - Oil gas on-line measuring device based on non-dispersive infrared method - Google Patents
Oil gas on-line measuring device based on non-dispersive infrared method Download PDFInfo
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- CN210269603U CN210269603U CN201920766869.5U CN201920766869U CN210269603U CN 210269603 U CN210269603 U CN 210269603U CN 201920766869 U CN201920766869 U CN 201920766869U CN 210269603 U CN210269603 U CN 210269603U
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Abstract
The utility model belongs to the technical field of the oil gas detection, a oil gas on-line measuring device based on non-dispersive infrared method is disclosed, including box, detection case, collection box, the detection case is inside to be fixed with first inner box, infrared source transmitter is installed to first inner box side inner wall, the detector is installed to the inner wall in one side in addition of first inner box, install sample container in the middle of the first inner box is inside, the sample container upper end is fixed with the aspiration pump, the detection case is inside to be fixed with the second inner box, the separation connecting seat is installed to the bottom of the case portion in the second, separation connecting seat upper end is fixed with the active carbon bed layer. This device carries out on-line measuring to oil gas based on non-dispersive infrared method, makes the testing process quick more, accurate, combines current detection device shortcoming to improve simultaneously, has increased two functions of detection room cleanness, vapor recovery system, has both increased the accuracy of testing result, has realized the recycle of vapor resource again.
Description
Technical Field
The utility model belongs to the technical field of the oil gas detection, especially, relate to an oil gas on-line measuring device based on non-dispersive infrared method.
Background
Currently, gas explosion is one of the main forms of explosion disasters in industrial production and living fields, and oil and gas explosion is a typical gas explosion. Because the petroleum products stored in the oil depot have certain volatility, when oil gas leaks seriously, the mixture of the oil gas and air reaches the explosion concentration limit range, and once the mixture meets a fire source, the mixture can explode, so that the oil gas detection is an important means for ensuring the industrial safety and the safety of the surrounding environment. The traditional gas detection technologies comprise a gas chromatography method, a gas sensor method, a Fourier infrared spectroscopy method and the like, and most of gas detection devices manufactured according to the methods lack a gas phase recovery system and do not accord with the current environmental protection concept; in addition, most of the existing oil-gas detection devices are repeatedly and alternately used, and the detection chamber cannot be cleaned after the oil-gas detection devices are used, so that errors exist in oil-gas detection results, and the accuracy of instrument analysis is reduced.
In summary, the problems of the prior art are as follows: most of the existing gas detection devices lack a gas phase recovery system and do not accord with the existing environmental protection concept; in addition, most of the existing oil-gas detection devices are repeatedly and alternately used, and the detection chamber cannot be cleaned after the oil-gas detection devices are used, so that errors exist in oil-gas detection results, and the accuracy of instrument analysis is reduced.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists, the utility model provides an oil gas on-line measuring device based on non-dispersive infrared method.
The utility model discloses a realize like this, an oil gas on-line measuring device based on non-dispersive infrared method includes box, detection case and collection box, the box includes detection case and collection box, the detection case is inside to be fixed with first inner box, first inner box side inner wall is installed infrared source transmitter, the filter is installed to infrared source transmitter front end, the detector is installed to the other one side inner wall of first inner box, install the sample container in the middle of first inner box is inside, the sample container upper end is fixed with the aspiration pump, the detection case is inside to be fixed with the second inner box, separation connecting seat is installed to second inner box bottom, separation connecting seat upper end is fixed with the active carbon bed layer, the A/D converter is connected through the wire to the detector, the A/D converter passes through the wire and connects the transmitter, the transmitter passes through wire and connects aspiration pump, the aspiration pump, A liquid ring vacuum pump, an igniter and a computer.
Further, the universal wheel is installed to the bottom half, bottom half surface mounting has the oxygen hose fixing base, oxygen fixing base right-hand member is fixed with the liquid ring vacuum pump, it has the venthole to open in the middle of the separation connecting seat.
Furthermore, communication ports are formed in the side surfaces of the sample container and the activated carbon bed layer, oil gas transmission pipes are fixed on the two communication ports, and first electric valves are installed at gas outlets of the oil gas transmission pipes.
Furthermore, the bottom end of the sample container is fixed with an air outlet duckbill, and a second electric valve is installed on the air outlet duckbill.
Furthermore, an oxygen inlet and a waste gas outlet are formed in the surface of the front end of the combustion chamber, an air inlet nozzle and an exhaust valve are respectively installed on the oxygen inlet and the waste gas outlet, and a third electric valve and a fourth electric valve are respectively installed on the air inlet nozzle and the exhaust valve.
Further, an igniter is embedded in the inner wall of the combustion chamber, and the inner wall of the combustion chamber is coated with flame retardant paint.
Further, the infrared light source emitter and the detector correspond to each other in position.
Furthermore, a single chip microcomputer is fixed in the transmitter, and a data storage chip is fixed at the lower end of the single chip microcomputer.
The utility model discloses an advantage and positive effect do: this device carries out on-line measuring to oil gas based on non-dispersive infrared method, makes the testing process quick more, accurate, combines current detection device shortcoming to improve simultaneously, has increased two functions of detection room cleanness, vapor recovery system, has both increased the accuracy of testing result, has realized the recycle of vapor resource again.
Drawings
FIG. 1 is a schematic view of the overall structure of an oil gas online detection device based on a non-dispersive infrared method according to an embodiment of the present invention;
FIG. 2 is a perspective view of the inside of an oil gas online detection device based on a non-dispersive infrared method according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an oxygen tank fixing seat and a liquid ring vacuum pump provided in an embodiment of the present invention;
fig. 4 is a schematic diagram of a connection structure of a circuit device according to an embodiment of the present invention.
In the figure: 1. a box body; 2. a detection box; 3. an air pump; 4. a recycling bin; 5. an air inlet nozzle; 6. an exhaust nozzle; 7. a first inner box; 8. an infrared light source emitter; 9. a filter; 10. a combustion chamber; 11. a sample container; 12. a detector; 13. a second inner box; 14. an activated carbon bed layer; 15. separating the connecting seat; 16. an oil and gas transmission pipe; 17. an oxygen tank fixing seat; 18. a liquid ring vacuum pump; 19. an A/D converter; 20. a transmitter; 21. an igniter; 22. and (4) a computer.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
The structure of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, an oil gas online detection device based on a non-dispersive infrared method provided by the embodiment of the present invention includes a box body 1, a detection box 2 and a recovery box 4, the box body 1 includes the detection box 2 and the recovery box 4, a first inner box 7 is fixed inside the detection box 2, an infrared source emitter 8 is installed on the inner wall of the side surface of the first inner box 7, a filter 9 is installed at the front end of the infrared source emitter 8, a detector 12 is installed on the inner wall of the other side of the first inner box 7, a sample container 11 is installed in the middle inside of the first inner box 7, an air pump 3 is fixed on the upper end of the sample container 11, a second inner box 13 is fixed inside the detection box 2, a separation connecting seat 15 is installed at the bottom of the second inner box 13, an activated carbon bed layer 14 is fixed on the upper end of the separation connecting seat 15, the detector 12 is connected with an a/D converter 19, the A/D converter 19 is connected with a transmitter 20 through a lead wire, and the transmitter 20 is connected with the air suction pump 3, the liquid ring vacuum pump 18, the igniter 21 and the computer 22 through lead wires.
Specifically, the universal wheel is installed to box 1 bottom, 1 bottom surface mounting of box has oxygen hose fixing base 17, oxygen fixing base 17 right-hand member is fixed with liquid ring vacuum pump 18, it has the venthole to open in the middle of the separation connecting seat 15. The liquid ring vacuum pump 18 performs pressure reduction desorption on the activated carbon bed layer 14 through an air outlet in the middle of the separation connecting seat 15.
Specifically, the sample container 11 and the side surface of the activated carbon bed layer 14 are provided with communicating ports, the two communicating ports are fixed with an oil-gas transmission pipe 16, and a first electric valve is installed at a gas outlet of the oil-gas transmission pipe 16. The sample container 11 is communicated with the activated carbon bed layer 14 through an oil gas transmission pipe 16, and the detected oil gas is recycled and adsorbed.
Specifically, the bottom end of the sample container 11 is fixed with an air outlet duckbill, and a second electric valve is installed on the air outlet duckbill. The air outlet duckbill is fixedly clamped in the combustion chamber 10, and the combustion chamber 10 is communicated with the sample container 11 through the air outlet duckbill.
Specifically, an oxygen inlet and a waste gas outlet are formed in the front end surface of the combustion chamber 10, an air inlet nozzle 5 and an exhaust valve 6 are respectively installed on the oxygen inlet and the waste gas outlet, and a third electric valve and a fourth electric valve are respectively installed on the air inlet nozzle 5 and the exhaust valve 6. The fire-retardant shell is fixed to the outside of the second electric valve, the third electric valve and the fourth electric valve, the first electric valve and the second electric valve are connected with the transmitter 20 through conducting wires, and the transmitter 20 is connected with the computer 22 to achieve automatic control of the valves.
Specifically, an igniter 21 is embedded in the inner wall of the combustion chamber 10, and the inner wall of the combustion chamber 10 is coated with flame retardant paint.
Specifically, the infrared light source emitter 8 and the detector 12 correspond to each other in position. The light emitted by the infrared light source emitter 8 is split to generate light with a specific single wavelength, which passes through the sample and can reach the detector 12 in parallel.
Specifically, a single chip microcomputer is fixed in the transmitter 20, and a data storage chip is fixed at the lower end of the single chip microcomputer. The single chip microcomputer is connected with the air pump 3, the liquid ring vacuum pump 18 and the switch circuit board of the igniter 21 through leads, and the data storage chip transmits data to the computer 22.
The utility model discloses a theory of operation:
before the device is used, the electric valves are all in a closed state.
Air extraction is performed, the computer 22 gives a command, the air extraction pump 3 is started through the transmitter 20, and the air around the oil depot is extracted through the air extraction pump 3.
Oil gas detection, the air pump 20 is closed, the detection gas is stored in the sample container 11, the infrared light source emitter 8 is opened, light emitted by the infrared light source emitter 8 is split through the filter 9, light with specific single wavelength is generated and passes through the sample to parallelly reach the detector 12, a gas concentration signal detected by the detector 12 is converted into a digital signal through the A/D converter 19 and is transmitted to the transmitter 20, the digital signal reaches a computer terminal through a storage chip inside the transmitter 20, the oil gas concentration is displayed by the computer 22, and therefore whether the oil gas concentration accords with a normal range is determined.
And recovering oil gas, after the detection is finished, operating the computer 22 to give an instruction to open the first electric valve, enabling the gas in the sample container 11 to reach the activated carbon bed layer 14 through the oil gas transmission pipe 16, and adsorbing the oil gas in the detected gas through the activated carbon bed layer 14. When the activated carbon bed 14 reaches the saturated state, fix the oil jar at the liquid ring vacuum pump 18 gas outlet end at first, rethread computer 22 assigns the instruction, starts liquid ring vacuum pump 18 through the singlechip in the transmitter 20, carries out the decompression desorption to the oil gas in the activated carbon bed 14 by liquid ring vacuum pump 18, makes oil gas and air separation, absorbs the oil gas after the desorption through the oil at last, accomplishes the recycle of oil gas.
The detection chamber is clean, the detection device is moved to a normal environment area, the oxygen tank is fixed in an oxygen tank fixing seat 17, the air outlet of the oxygen tank is connected with an air inlet nozzle 5 through a hose, a third electric valve is firstly opened to enable a certain amount of oxygen to be filled in a combustion chamber 10, the third electric valve is closed after oxygenation is completed, an air pump 3 and a second electric valve are opened to close the first electric valve, residual gas in a sample container 11 is blown into the combustion chamber 10 through a common blowing device, the second electric valve is closed after blowing is completed for a period of time, oil gas and oxygen are fully contacted in the combustion chamber 10, an igniter 21 is started, the residual oil gas is fully combusted under the combustion supporting effect of the oxygen after ignition is successful to generate carbon dioxide and water, and finally a fourth electric valve is opened to discharge the combusted gas, the discharged gas has no toxicity and can not pollute the environment, No harm to human health.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides an oil gas on-line measuring device based on infrared method of non-dispersive, a serial communication port, oil gas on-line measuring device based on infrared method of non-dispersive includes box, detection case, collection box, the detection case is inside to be fixed with first interior case, infrared source transmitter is installed to first interior case side inner wall, the filter is installed to infrared source transmitter front end, the detector is installed to the other one side inner wall of first interior case, install sample container in the middle of first interior incasement portion, the sample container upper end is fixed with the aspiration pump, the detection case is inside to be fixed with the second interior case, separation connecting seat is installed to the bottom of the case portion in the second, separation connecting seat upper end is fixed with the active carbon bed layer, the A/D converter is connected through the wire to the detector, the A/D converter passes through the wire and connects the transmitter, the transmitter passes through the wire and connects aspiration pump, the filter, A liquid ring vacuum pump, an igniter and a computer.
2. The non-dispersive infrared oil-gas online detection device according to claim 1, wherein universal wheels are installed at the bottom of the box body, an oxygen tube fixing seat is installed on the surface of the bottom of the box body, a liquid ring vacuum pump is fixed at the right end of the oxygen fixing seat, and an air outlet is formed in the middle of the separation connecting seat.
3. The non-dispersive infrared oil and gas online detection device according to claim 1, wherein the sample container and the activated carbon bed layer side are provided with communication ports, oil and gas transmission pipes are fixed on the two communication ports, and a first electric valve is installed at a gas outlet of each oil and gas transmission pipe.
4. The non-dispersive infrared method-based online oil and gas detection device according to claim 1, wherein a gas outlet duckbill is fixed at the bottom end of the sample container, and a second electric valve is installed on the gas outlet duckbill.
5. The non-dispersive infrared oil-gas online detection device according to claim 1, wherein a combustion chamber is arranged in the box body, an oxygen inlet and an exhaust outlet are formed in the front end surface of the combustion chamber, an air inlet nozzle and an exhaust valve are respectively mounted on the oxygen inlet and the exhaust outlet, and a third electric valve and a fourth electric valve are respectively mounted on the air inlet nozzle and the exhaust valve.
6. The non-dispersive infrared method-based oil and gas online detection device according to claim 5, wherein an igniter is embedded in the inner wall of the combustion chamber, and the inner wall of the combustion chamber is coated with flame retardant paint.
7. The non-dispersive infrared based on-line oil and gas detection device as claimed in claim 1, wherein the infrared light source emitter and the detector are positioned correspondingly.
8. The non-dispersive infrared oil and gas online detection device according to claim 1, wherein a single chip microcomputer is fixed in the transmitter, and a data storage chip is fixed at the lower end of the single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920766869.5U CN210269603U (en) | 2019-05-27 | 2019-05-27 | Oil gas on-line measuring device based on non-dispersive infrared method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920766869.5U CN210269603U (en) | 2019-05-27 | 2019-05-27 | Oil gas on-line measuring device based on non-dispersive infrared method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210269603U true CN210269603U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920766869.5U Active CN210269603U (en) | 2019-05-27 | 2019-05-27 | Oil gas on-line measuring device based on non-dispersive infrared method |
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| Country | Link |
|---|---|
| CN (1) | CN210269603U (en) |
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2019
- 2019-05-27 CN CN201920766869.5U patent/CN210269603U/en active Active
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