CN203620523U - Proportional gas and air mixing device - Google Patents
Proportional gas and air mixing device Download PDFInfo
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- CN203620523U CN203620523U CN201320804858.4U CN201320804858U CN203620523U CN 203620523 U CN203620523 U CN 203620523U CN 201320804858 U CN201320804858 U CN 201320804858U CN 203620523 U CN203620523 U CN 203620523U
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Abstract
The utility model discloses a proportional gas and air mixing device which consists of a gas pipeline, a compressed air pipeline, a mixed gas output pipeline and a control disk, wherein the gas pipeline comprises a gas inlet, a pneumatic shut-off valve a, a pressure regulator a, a regulation valve a, a rotor flow meter, a valve a and a pressure gauge; the compressed air pipeline comprises a compressed air inlet, a pneumatic shut-off valve b, a pressure regulator b, a regulation valve b, a rotor flow meter b, a valve b and a pressure gauge; the mixed gas output pipeline comprises a static mixer, a valve c, a mixed gas outlet, a pressure gauge, a pressure transducer and an oxygen content analyzer; gas sources of the pneumatic shut-off valves are from the compressed air pipeline; the pneumatic shut-off valves, the pressure transducer and the oxygen content analyzer are respectively connected with the control disk through wires. The proportional gas and air mixing device has the advantages of simple structure, high gas mixing precision and low cost; proportion control is manually executed; the flow can be directly observed through the control disk; the proportional gas and air mixing device is convenient to operate and is particularly suitable to be used under a low-flow working condition.
Description
(1) technical field
The utility model relates to combustion gas application technology, particularly a kind of proportioning type combustion gas and air mixing device.
(2) background technology
City gas generally has three kinds: coal gas, liquefied petroleum gas and natural gas (gas well gas, coal bed gas, biogas, associated gas).The calorific value of each combustion gas is different, and coal gas is minimum, and natural gas is placed in the middle, and liquefied petroleum gas is the highest, and their combustion position is also different.Therefore want to make to replace mutually between them, for example high heating value combustion gas substitutes fuel gas with low heat value, needs high heating value combustion gas to carry out dilution air.In gas industry, blending mode has three kinds at present: venturi type, proportion expression and follow-up flow formula.The mixed gas cost of venturi type is low but require fuel gas inlet pressure high, and outlet pressure is low; The mixed gas automaticity of proportioning type is low and cost is higher; The mixed gas of follow-up flow formula can realize automatic control but cost is higher.
(3) utility model content
The purpose of this utility model is for above-mentioned existing problems, and a kind of gas precision is high, cost is low proportioning type combustion gas and air mixing device simple in structure, mixed are provided.
The technical solution of the utility model:
A kind of proportioning type combustion gas and air mixing device, formed by fuel gas pipeline, compressed air line, mixture output tube road and control panel, fuel gas pipeline comprises fuel gas inlet, pneumatic cut-off valve a, pressure regulator a, control valve a, spinner flowmeter and valve a and is connected in series by pipeline, on the import of pneumatic cut-off valve a and the outlet conduit of pressure regulator a, is respectively equipped with Pressure gauge a and Pressure gauge d; Compressed air line comprises compressed air inlet, pneumatic cut-off valve b, pressure regulator b, control valve b, spinner flowmeter b and valve b and is connected in series by pipeline, on the import of pneumatic cut-off valve b and the outlet conduit of pressure regulator b, is respectively equipped with Pressure gauge b and Pressure gauge e; Mixture output tube road comprises static mixer, valve c and mixed gas outlet and is connected in series by pipeline, in static mixer, be provided with flow-disturbing net, on the pipeline between valve c and mixed gas outlet, be respectively equipped with Pressure gauge c, pressure transmitter and oxygen conten analyser; The valve a outlet of fuel gas pipeline and the valve b outlet of compressed air line enter in static mixer by pipeline respectively; The source of the gas of pneumatic cut-off valve a and pneumatic cut-off valve b is taken from compressed air line, and pneumatic cut-off valve a, pneumatic cut-off valve b, pressure transmitter and oxygen conten analyser are connected with control panel by wire respectively.
Working procedure of the present utility model: after two kinds of gas accesss to plant, be adjusted to identical pressure by pressure regulator, observe flow and regulate control valve by control panel when work, can obtain the gaseous mixture of different proportion; When the oxygen content of mixed gas outlet is when than setting value, high or pressure raises suddenly, control panel receives oxygen conten analyser signal and pressure signal, and control panel is reported to the police and commanded stop valve to cut off source of the gas, assurance downstream user safety.
The utility model has the advantages that: simple in structure, the mixed gas precision of this mixing device is high, cost is low; Proportion control is manually, directly observes uninterrupted by control panel, easy to operate; The air capacity that enters static mixer is followed the gas quantity variation that enters blender, and to gaseous-pressure is less demanding, mixed gas outlet pressure is relatively high, is specially adapted to low flow rate condition and uses.
(4) accompanying drawing explanation
Accompanying drawing is combustion gas and air mixing device schematic diagram.
In figure: 1. fuel gas inlet 2. Pressure gauge a3. pneumatic cut-off valve a4. pressure regulator a5. Pressure gauge d6. control valve a7. spinner flowmeter a8. ball valve a9. air intlet 10. Pressure gauge b11. pneumatic cut-off valve b12. pressure regulator b13. Pressure gauge e14. control valve b15. spinner flowmeter b16. ball valve b17. static mixer 18. flow-disturbing net 19. valve c20. Pressure gauge c21. pressure transmitter 22. oxygen conten analyser 23. mixed gas outlet 24. control panels
(5) specific embodiment
A kind of proportioning type combustion gas and air mixing device, formed by fuel gas pipeline, compressed air line, mixture output tube road and control panel 24, fuel gas pipeline comprises fuel gas inlet 1, pneumatic cut-off valve a3, pressure regulator a4, control valve a6, spinner flowmeter 7 and valve a8 and is connected in series by pipeline, on the import of pneumatic cut-off valve a3 and the outlet conduit of pressure regulator a4, is respectively equipped with Pressure gauge a2 and Pressure gauge d5; Compressed air line comprises compressed air inlet 9, pneumatic cut-off valve b11, pressure regulator b12, control valve b14, spinner flowmeter b15 and valve b19 and is connected in series by pipeline, on the import of pneumatic cut-off valve b11 and the outlet conduit of pressure regulator b12, is respectively equipped with Pressure gauge b10 and Pressure gauge e13; Mixture output tube road comprises static mixer 17, valve c19 and mixed gas outlet 23 and is connected in series by pipeline, in static mixer 17, be provided with flow-disturbing net 18, on the pipeline between valve c19 and mixed gas outlet 23, be respectively equipped with Pressure gauge c20, pressure transmitter 21 and oxygen conten analyser 22; The valve a8 outlet of fuel gas pipeline and the valve b16 outlet of compressed air line enter in static mixer 17 by pipeline respectively; The source of the gas of pneumatic cut-off valve a3 and pneumatic cut-off valve b11 is taken from compressed air line, and pneumatic cut-off valve a3, pneumatic cut-off valve b11, pressure transmitter 21 and oxygen conten analyser 22 are connected with control panel 24 by wire respectively.
Claims (1)
1. a proportioning type combustion gas and air mixing device, it is characterized in that: formed by fuel gas pipeline, compressed air line, mixture output tube road and control panel, fuel gas pipeline comprises fuel gas inlet, pneumatic cut-off valve a, pressure regulator a, control valve a, spinner flowmeter and valve a and is connected in series by pipeline, on the import of pneumatic cut-off valve a and the outlet conduit of pressure regulator a, is respectively equipped with Pressure gauge a and Pressure gauge d; Compressed air line comprises compressed air inlet, pneumatic cut-off valve b, pressure regulator b, control valve b, spinner flowmeter b and valve b and is connected in series by pipeline, on the import of pneumatic cut-off valve b and the outlet conduit of pressure regulator b, is respectively equipped with Pressure gauge b and Pressure gauge e; Mixture output tube road comprises static mixer, valve c and mixed gas outlet and is connected in series by pipeline, in static mixer, be provided with flow-disturbing net, on the pipeline between valve c and mixed gas outlet, be respectively equipped with Pressure gauge c, pressure transmitter and oxygen conten analyser; The valve a outlet of fuel gas pipeline and the valve b outlet of compressed air line enter in static mixer by pipeline respectively; The source of the gas of pneumatic cut-off valve a and pneumatic cut-off valve b is taken from compressed air line, and pneumatic cut-off valve a, pneumatic cut-off valve b, pressure transmitter and oxygen conten analyser are connected with control panel by wire respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804858.4U CN203620523U (en) | 2013-12-06 | 2013-12-06 | Proportional gas and air mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804858.4U CN203620523U (en) | 2013-12-06 | 2013-12-06 | Proportional gas and air mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203620523U true CN203620523U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320804858.4U Expired - Fee Related CN203620523U (en) | 2013-12-06 | 2013-12-06 | Proportional gas and air mixing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203620523U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164267A (en) * | 2014-08-14 | 2014-11-26 | 重庆大学 | Method for supplementing biogas by virtue of liquefied natural gas (LNG) blended with air |
| CN105727779A (en) * | 2016-02-03 | 2016-07-06 | 扈乃维 | Control system of fluid refining device |
| CN106841296A (en) * | 2017-04-04 | 2017-06-13 | 煤炭科学技术研究院有限公司 | A kind of oxygen nitrogen mixes high accuracy matching device and method |
| CN108266639A (en) * | 2016-12-30 | 2018-07-10 | 广东珠江燃气集团有限公司 | For the gas power generation system of environmentally friendly air mixture |
| CN110898693A (en) * | 2019-11-29 | 2020-03-24 | 苏州浦煦流体控制系统有限公司 | High-precision combustible gas mixer |
| CN111318192A (en) * | 2020-03-23 | 2020-06-23 | 潍坊众成自动化设备有限公司 | System and method for automatically proportioning various fuel gases and air according to flow requirements |
| CN112126485A (en) * | 2020-09-14 | 2020-12-25 | 大连派思燃气设备有限公司 | Gas mixing system for power station |
| CN112191117A (en) * | 2020-09-21 | 2021-01-08 | 上海仪器仪表自控系统检验测试所有限公司 | Blending device and blending method for multiple combustible gases |
-
2013
- 2013-12-06 CN CN201320804858.4U patent/CN203620523U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164267A (en) * | 2014-08-14 | 2014-11-26 | 重庆大学 | Method for supplementing biogas by virtue of liquefied natural gas (LNG) blended with air |
| CN104164267B (en) * | 2014-08-14 | 2016-01-13 | 重庆大学 | A kind of natural gas liquids dilution air supplies the method for biogas |
| CN105727779A (en) * | 2016-02-03 | 2016-07-06 | 扈乃维 | Control system of fluid refining device |
| CN105727779B (en) * | 2016-02-03 | 2018-09-28 | 扈乃维 | A kind of control system of fluid refining device |
| CN108266639A (en) * | 2016-12-30 | 2018-07-10 | 广东珠江燃气集团有限公司 | For the gas power generation system of environmentally friendly air mixture |
| CN108266639B (en) * | 2016-12-30 | 2019-12-03 | 广东珠江燃气集团股份有限公司 | Gas power generation system for environmentally friendly air mixture |
| CN106841296A (en) * | 2017-04-04 | 2017-06-13 | 煤炭科学技术研究院有限公司 | A kind of oxygen nitrogen mixes high accuracy matching device and method |
| CN110898693A (en) * | 2019-11-29 | 2020-03-24 | 苏州浦煦流体控制系统有限公司 | High-precision combustible gas mixer |
| CN110898693B (en) * | 2019-11-29 | 2022-04-22 | 苏州浦煦流体控制系统有限公司 | High-precision combustible gas mixer |
| CN111318192A (en) * | 2020-03-23 | 2020-06-23 | 潍坊众成自动化设备有限公司 | System and method for automatically proportioning various fuel gases and air according to flow requirements |
| CN112126485A (en) * | 2020-09-14 | 2020-12-25 | 大连派思燃气设备有限公司 | Gas mixing system for power station |
| CN112191117A (en) * | 2020-09-21 | 2021-01-08 | 上海仪器仪表自控系统检验测试所有限公司 | Blending device and blending method for multiple combustible gases |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140604 Termination date: 20201206 |