CN201543389U - Follow-up gas-air mixing device - Google Patents
Follow-up gas-air mixing device Download PDFInfo
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- CN201543389U CN201543389U CN2009202509720U CN200920250972U CN201543389U CN 201543389 U CN201543389 U CN 201543389U CN 2009202509720 U CN2009202509720 U CN 2009202509720U CN 200920250972 U CN200920250972 U CN 200920250972U CN 201543389 U CN201543389 U CN 201543389U
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Abstract
The utility model provides a follow-up gas-air mixing device, composed of a mixing part, a mixture output part and a control console, wherein the mixing part comprises an air line, a gas line and a static mixer, the air line comprises a cut-off valve a, an adjusting valve and a flow rate sensor a, and is communicated to the static mixer by a pipe; the gas line comprises a cut-off valve b, a flow rate sensor b, and communicated to the static mixer by a pipe; a pressure sensor and a oxygen content sensor are arranged on the mixture output pipe; and a flow control instrument, a pressure control instrument and a oxygen content analyzer are arranged and connected on the control console by conductor wires. The device of the utility model is characterized in that: the control part adopts the flow control instrument, which can rapidly receive and compare the flowmeter signal, the output signal controlling and adjusting valve is open, and the cut-off valve is controlled by the oxygen content analyzer and the pressure control instrument on the control disc; and the device has advantages of simple structure, high mixing precision, and is specially suitable for using under high flow rate behavior.
Description
(1) technical field
The utility model relates to the combustion gas application technology, particularly a kind of trailing type combustion gas and air blending device.
(2) background technology
City gas generally has three kinds: a kind of is coal gas, and second kind is liquefied petroleum gas, and the third is natural gas (gas well gas, coal bed gas, biogas, an 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 between them to replace mutually, for example the high heating value combustion gas substitutes fuel gas with low heat value, then needs dilution air is carried out in the high heating value combustion gas.The blending mode has three kinds in the gas industry at present: venturi type, proportioning type and servo-actuated flow-type.Venturi type mixes pneumatolytic, and this is low but require fuel gas inlet pressure height, and outlet pressure is low; The mixed gas automaticity of proportioning type is low and cost is higher; The servo-actuated flow-type mixes gas can realize control automatically but low precision.
(3) utility model content
The purpose of this utility model is at above-mentioned existing problems, provide a kind of simple in structure, mix gas precision height, and trailing type combustion gas and air blending device that mixed gas outlet pressure relatively higher less demanding to gaseous-pressure.
The technical solution of the utility model:
A kind of trailing type combustion gas and air blending device are made of mixed gas part, gaseous mixture output and console; Mixing the gas part is made of air pipe line, fuel gas pipeline and static mixer, air pipe line comprises air intlet, valve a, stop valve a, pressure regulator, control valve and flow sensor a and by the pipeline laggard static blender of going into that is connected in series, air pipe line is provided with Pressure gauge a, fuel gas pipeline comprises fuel gas inlet, valve b, stop valve b and flow sensor b and by the pipeline laggard static blender of going into that is connected in series, fuel gas pipeline is provided with Pressure gauge b; The gaseous mixture output comprises valve c and mixed gas outlet, and the mixture output tube road is provided with Pressure gauge c, pressure sensor and oxygen level sensor; Console is provided with flow quantity control instrument, pressure controller and oxygen analysis instrument, flow sensor a is connected with flow quantity control instrument by lead with flow sensor b, pressure sensor is connected with the oxygen analysis instrument with pressure controller respectively by lead with oxygen level sensor, control valve is connected with flow quantity control instrument by lead, and stop valve a is connected with the oxygen analysis instrument with pressure controller by lead with stop valve b and is subjected to Synchronization Control.
The scope of application of the present utility model is: fuel gas inlet pressure 0.2-0.3MPa; Air intlet pressure 0.35Mpa, mixer outlet pressure 0.3-0.35Mpa; Air demand 0-5000Nm
3
The utility model has the advantages that: control section adopts flow quantity control instrument, can accept flow meter signal rapidly also relatively, output signal controls to adjust valve opening then, oxygen analysis instrument and pressure controller control on the controlled dish of stop valve, static mixer adopts core structure, and inside is provided with the flow-disturbing net and fully mixes to guarantee two kinds of gases that enter blender; Simple in structure, mix gas precision height, be specially adapted to the use of big flow operating mode.
(4) description of drawings
Accompanying drawing is combustion gas and air blending device schematic diagram.
Among the figure: 1. air intlet 2. valve a 3. Pressure gauge a 4. stop valve a5. pressure regulators 6. Pressure gauge a 7. control valves 8. flow sensor a9. fuel gas inlet 10. valve b 11. Pressure gauge b 12. stop valve b13. flow sensor b 14. pipelines 15. static mixers 16. valve c17. Pressure gauge c 18. pressure sensors 19. mixed gas outlets 20. oxygen level sensors 21. consoles 22. leads 23. flow quantity control instruments 24. pressure controllers 25. oxygen conten analysers
(5) specific embodiment
A kind of trailing type combustion gas and air blending device are made of mixed gas part, gaseous mixture output and console; Mixing the gas part is made of air pipe line, fuel gas pipeline and static mixer, air pipe line comprises air intlet 1, valve a2, stop valve a4, pressure regulator 5, control valve 7 and flow sensor a8 and by the pipeline 14 laggard static blender 15 of going into that is connected in series, air pipe line is provided with Pressure gauge a3,6, fuel gas pipeline comprises fuel gas inlet 9, valve b10, stop valve b12 and flow sensor b13 and by the pipeline 14 laggard static blender 15 of going into that is connected in series, fuel gas pipeline is provided with Pressure gauge b11; The gaseous mixture output comprises valve c16 and mixed gas outlet 19, and the mixture output tube road is provided with Pressure gauge c17, pressure sensor 18 and oxygen level sensor 20; Console 21 is provided with flow quantity control instrument 23, pressure controller 24 and oxygen analysis instrument 25, flow sensor a8 is connected with flow quantity control instrument 23 by lead 22 with flow sensor b13, pressure sensor 18 is connected with oxygen analysis instrument 25 with pressure controller 24 respectively by lead 22 with oxygen level sensor 20, control valve 7 is connected with flow quantity control instrument 23 by lead 22, and stop valve a4 is connected with oxygen analysis instrument 25 with pressure controller 24 by lead 22 with stop valve b12 and is subjected to Synchronization Control.
In this example, pressure regulator 5 adopts the 627/576 type product of U.S. Fisher, control valve 7 and stop valve a, b adopt the ZMQ type and the ZXP type product of triumphant valve company in the Zhejiang, the GAS-NET F1 type product that flow quantity control instrument 23 adopts ABB AB to produce, the A1708T type product that pressure controller 24 adopts Xiamen space electricity to produce, oxygen analysis instrument 25 adopts the plum south of a city, Jiande City to add the KY-2F type product of analyzer factory.
The working procedure of present embodiment: static mixer adopts core structure, and inside is provided with the flow-disturbing net fully mixes to guarantee two kinds of gases that enter blender, and static mixer and valve are by the series connection of mixture output tube road, and Pressure gauge is arranged on the output channel; Control panel is provided with flow quantity control instrument, pressure controller and oxygen analysis instrument, flow quantity control instrument is accepted the flow signal of air part and combustion gas part, pressure sensor and oxygen level sensor all are arranged on the mixture output tube road, stop valve is connected with control panel by the control cable with control valve, oxygen analysis instrument and pressure controller control on the controlled dish of stop valve, control valve is flow quantity control instrument control on pneumatic type and the controlled dish, flow quantity control instrument can be accepted two parts flow meter signal rapidly and compare, then output signal control and regulation valve opening.
Suppose when the oxygen content of mixed gas outlet is higher than setting value, be that the air portion shunt volume increases or the department of fuel gas shunt volume reduces, flow computer measures in advance, commander's control valve 7 turns down valve port, air mass flow reduces, only fluctuating in small scope thereby reach oxygen content, is that the gaseous mixture oxygen content keeps balance.
When the oxygen content of mixed gas outlet departed from greatly than setting value, oxygen analysis instrument commander stop valve cut out import, guarantees downstream safety.
When mixed pressure force rate setting value departed from greatly, pressure controller commander stop valve cut out import, guarantees downstream safety.
Static mixer inside is the flow-disturbing net, guarantees that two kinds of gases that enter blender fully mix.
The scope of application of present embodiment is: fuel gas inlet pressure 0.2-0.3MPa; Air intlet pressure 0.35Mpa, mixer outlet pressure 0.3-0.35Mpa; Air demand 0-5000Nm
3
Claims (1)
1. trailing type combustion gas and air blending device is characterized in that: be made of mixed gas part, gaseous mixture output and console; Mixing the gas part is made of air pipe line, fuel gas pipeline and static mixer, air pipe line comprises air intlet, valve a, stop valve a, pressure regulator, control valve and flow sensor a and by the pipeline laggard static blender of going into that is connected in series, air pipe line is provided with Pressure gauge a, fuel gas pipeline comprises fuel gas inlet, valve b, stop valve b and flow sensor b and by the pipeline laggard static blender of going into that is connected in series, fuel gas pipeline is provided with Pressure gauge b; The gaseous mixture output comprises valve c and mixed gas outlet, and the mixture output tube road is provided with Pressure gauge c, pressure sensor and oxygen level sensor; Console is provided with flow quantity control instrument, pressure controller and oxygen analysis instrument, flow sensor a is connected with flow quantity control instrument by lead with flow sensor b, pressure sensor is connected with the oxygen analysis instrument with pressure controller respectively by lead with oxygen level sensor, control valve is connected with flow quantity control instrument by lead, and stop valve a is connected with the oxygen analysis instrument with pressure controller by lead with stop valve b and is subjected to Synchronization Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202509720U CN201543389U (en) | 2009-11-27 | 2009-11-27 | Follow-up gas-air mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202509720U CN201543389U (en) | 2009-11-27 | 2009-11-27 | Follow-up gas-air mixing device |
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| Publication Number | Publication Date |
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| CN201543389U true CN201543389U (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202509720U Expired - Fee Related CN201543389U (en) | 2009-11-27 | 2009-11-27 | Follow-up gas-air mixing device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353748A (en) * | 2011-09-22 | 2012-02-15 | 东南大学 | Oxygen index tester |
| CN102777766A (en) * | 2012-06-18 | 2012-11-14 | 无锡宇吉科技有限公司 | Natural gas pipeline gas-transmission system |
| CN102861520A (en) * | 2011-07-06 | 2013-01-09 | 气体产品与化学公司 | Blending compressed gases |
| CN102895890A (en) * | 2012-09-03 | 2013-01-30 | 杭州萧山管道燃气发展有限公司 | Mixed gas mixing pipe structure for natural gas and biogas, and preparation method thereof |
| CN104906993A (en) * | 2015-05-25 | 2015-09-16 | 北京扬德环境科技股份有限公司 | Gas automatic blending device and blending method |
| 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 |
| CN108568222A (en) * | 2017-03-10 | 2018-09-25 | 广东珠江燃气集团有限公司 | A kind of air mixture automatic preparing device |
| CN110360451A (en) * | 2019-07-29 | 2019-10-22 | 河南中原特钢装备制造有限公司 | Guarantee three stable gas blending techniques of steam line pressure |
| 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 |
| CN112295425A (en) * | 2019-08-02 | 2021-02-02 | 中国石油化工股份有限公司 | Purgable gas distribution system and method |
| CN112303627A (en) * | 2019-08-02 | 2021-02-02 | 中国石油化工股份有限公司 | Gas distribution system and method |
-
2009
- 2009-11-27 CN CN2009202509720U patent/CN201543389U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861520A (en) * | 2011-07-06 | 2013-01-09 | 气体产品与化学公司 | Blending compressed gases |
| CN102353748A (en) * | 2011-09-22 | 2012-02-15 | 东南大学 | Oxygen index tester |
| CN102353748B (en) * | 2011-09-22 | 2014-12-10 | 东南大学 | Oxygen index tester |
| CN102777766A (en) * | 2012-06-18 | 2012-11-14 | 无锡宇吉科技有限公司 | Natural gas pipeline gas-transmission system |
| CN102895890A (en) * | 2012-09-03 | 2013-01-30 | 杭州萧山管道燃气发展有限公司 | Mixed gas mixing pipe structure for natural gas and biogas, and preparation method thereof |
| CN104906993A (en) * | 2015-05-25 | 2015-09-16 | 北京扬德环境科技股份有限公司 | Gas automatic blending device and blending method |
| CN104906993B (en) * | 2015-05-25 | 2017-03-15 | 北京扬德环境科技股份有限公司 | A kind of automatic mixing device of methane gas and mixing method |
| CN108568222A (en) * | 2017-03-10 | 2018-09-25 | 广东珠江燃气集团有限公司 | A kind of air mixture automatic preparing 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 |
| CN110360451A (en) * | 2019-07-29 | 2019-10-22 | 河南中原特钢装备制造有限公司 | Guarantee three stable gas blending techniques of steam line pressure |
| CN110360451B (en) * | 2019-07-29 | 2021-09-28 | 河南中原特钢装备制造有限公司 | Three-gas mixing process for ensuring stable pressure of gas supply pipeline |
| CN112295425A (en) * | 2019-08-02 | 2021-02-02 | 中国石油化工股份有限公司 | Purgable gas distribution system and method |
| CN112303627A (en) * | 2019-08-02 | 2021-02-02 | 中国石油化工股份有限公司 | Gas distribution system and method |
| CN112303627B (en) * | 2019-08-02 | 2023-02-17 | 中国石油化工股份有限公司 | Gas distribution system and method |
| CN112295425B (en) * | 2019-08-02 | 2023-05-09 | 中国石油化工股份有限公司 | Purging gas distribution system and method |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANJIN HUAMAI GAS EQUIPMENT CO., LTD. Free format text: FORMER NAME: TIANJIN HUAMAI GAS TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 300384 Tianjin Huayuan Industrial Park Haitai development five road eight Patentee after: Tianjin Huamai Gas Equipment Co., Ltd. Address before: 300384 Tianjin Huayuan Industrial Park Haitai development five road eight Patentee before: Tianjin Huamai Gas Technology Development Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20161127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |