CN102078755B - Integrally skid-mounted denitration device of power plant - Google Patents
Integrally skid-mounted denitration device of power plant Download PDFInfo
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- CN102078755B CN102078755B CN 201010561748 CN201010561748A CN102078755B CN 102078755 B CN102078755 B CN 102078755B CN 201010561748 CN201010561748 CN 201010561748 CN 201010561748 A CN201010561748 A CN 201010561748A CN 102078755 B CN102078755 B CN 102078755B
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Abstract
An integrally skid-mounted denitration device of a power plant is composed by a liquid ammonia part, a gasification part, a pressure regulating part, a compressed air part and a skid-mounted chassis part. The liquid ammonia part comprises an import valve, a filter, a ammonia discharging pump, a check valve and a liquid ammonia tank; the gasification part comprises an inlet ball valve, a carburetor, a steam pipe and an export ball valve; the pressure regulating part comprises a filter, a check valve, a pneumatically regulating valve, an outlet valve, a flow meter and a static the mixing chamber; and the skid chassis is of a rectangular steel plate and all components are directly fixed with the skid chassis or indirectly through a fixed pipe. Four hooks are arranged at angle region of the skid-mounted chassis. The denitration device is of the integrally skid mounted structure, and has the advantages of high heat transfer efficiency, good denitration effect, space saving, simple installation, and easy operation. By the invention, denitration in the power plant becomes simple and is of significant effects on environmental protection.
Description
(1) technical field
The present invention relates to the application technology of power plant emission denitrating flue gas, particularly a kind of whole skid power plant denitrification apparatus.
(2) background technology
Contain a large amount of nitre (nitrogen oxide NO) in the power plant discharging flue gas, enter and form acid rain in the atmosphere, very harmful to the mankind.Ammonia (NH is used in denitration usually
4) the reducing process realization.Because liquid ammonia gasification heat exchange efficiency is low, cause the liquefied ammonia gasification unstable, have influence on the inhomogeneous blending of ammonia and flue gas, reduce denitration effect.And whole denitrating system equipment is many, the discrete installation of monomer, and floor space is big, the control connection complexity, installation difficulty is big, long construction period.Therefore need a kind of device to make liquefied ammonia can stablize gasification, prevented liquid, improve heat exchange efficiency; Accurately blending improves denitration effect; Single devices with discrete installation is assembled into sled simultaneously, thereby it is big to solve floor space, the installation difficulty height, and the problem of long construction period makes simple what become with power plant's denitration improvement project.
(3) summary of the invention
The objective of the invention is at above-mentioned existing problems, provide a kind of integrated skid structure, heat exchange efficiency height, denitration effect is good, installation is simple and operation and maintenance whole skid easily power plant denitrification apparatus.
Technical scheme of the present invention:
A kind of whole skid power plant denitrification apparatus, formed by liquefied ammonia part, gasification part, pressure regulation part, compressed air part and skid chassis, liquefied ammonia partly comprises inlet valve, filter, unloads ammonia pump, check-valves and ammonia tank and be connected in series by the liquefied ammonia pipeline, is parallel with bypass line with the liquefied ammonia pipeline and is connected with the import and export pipeline of ammonia tank respectively and is provided with bypass valve; The gasification part comprises inlet ball valve, liquefied ammonia gasifier, steam pipework and outlet ball valve and is connected in series by pipeline, the liquefied ammonia gasifier is coiled indirect heat exchange structure, steam pipework comprises steam inlet valve, pressure-reducing valve and steam outlet valve and is connected in series by pipeline, steam outlet valve is connected by the coil pipe of pipeline with the liquefied ammonia gasifier, inlet ball valve is connected with the outlet of ammonia tank by pipeline, and the outlet ball valve is connected with pressure-regulating portion subentry pipeline by pipeline; The pressure-regulating portion branch comprises filter, check-valves, ammonia pneumatic control valve, ammonia outlet valve, ammonia flow meter and static mixing chamber and is connected in series by pipeline; Compressed air partly comprises air inlet valve, air pneumatic control valve, air outlet valve and mass air flow sensor and by the pipeline laggard static mixing chamber of going into that is connected in series; The skid chassis is rectangular steel plates, and all components of liquefied ammonia part, gasification part, pressure regulation part and compressed air part is all directly fixed with the skid chassis or passed through the pipeline indirect securement, and the angular region on skid chassis is provided with four suspension hooks.
Working procedure of the present invention:
The liquid ammonia of liquid ammonia storage tank filters foreign material through filter, injects ammonia tank through unloading ammonia pump again.After liquid ammonia in the ammonia tank enters liquefied ammonia gasifier heat exchange gasification, after regulating pressure, send, after flowmeter metering, after mixing, static mixer is injected into atomizer with compressed air through pressure regulation and metering, thereby regulate the ratio of ammonia and compressed-air actuated flow control atomizing ammonia respectively by the open degree of control and regulation valve, make the more abundant mixing of ammonia and air, denitration effect is met the demands.
Advantage of the present invention is: this denitrification apparatus adopts integrated skid structure, and the heat exchange efficiency height, denitration effect is good, floor space is little, it is simple, easy to use to install, and is becoming simple thereby make with power plant's denitration improvement project, and its environmental protection effect is very big.
(4) description of drawings
Fig. 1 is this denitrification apparatus master TV structure schematic diagram.
Fig. 2 is this denitrification apparatus plan structure schematic diagram.
Among the figure: 1. inlet valve 2. filters 3. unload ammonia pump 4. check-valves 5. ammonia tanks 6. bypass valves 7. inlet ball valves 8. liquefied ammonia gasifiers 9. outlet 18. air inlet valves, 19. air pneumatic control valves, 20. air outlet valves, 21. mass air flow sensor, 22. skid chassis, ball valve 10. steam inlet valves, 11. pressure-reducing valves, 12. steam outlet valves, 13. filters, 14. ammonia pneumatic control valves, 15. ammonia outlet valves, 16. ammonia flow meters static mixing chambers 17. 23. suspension hooks
(5) specific embodiment
Embodiment:
A kind of whole skid power plant denitrification apparatus, formed by liquefied ammonia part, gasification part, pressure regulation part, compressed air part and skid chassis, liquefied ammonia partly comprises inlet valve 1, filter 2, unloads ammonia pump 3, check-valves 4 and ammonia tank 5 and be connected in series by the liquefied ammonia pipeline, is parallel with bypass line with the liquefied ammonia pipeline and is connected with the import and export pipeline of ammonia tank respectively and is provided with bypass valve 6; The gasification part comprises inlet ball valve 7, liquefied ammonia gasifier 8, steam pipework and outlet ball valve 9 and is connected in series by pipeline, liquefied ammonia gasifier 8 is coiled indirect heat exchange structure, steam pipework comprises steam inlet valve 10, pressure-reducing valve 11 and steam outlet valve 12 and is connected in series by pipeline, steam outlet valve 12 is connected by the coil pipe of pipeline with liquefied ammonia gasifier 8, inlet ball valve 7 is connected by the outlet of pipeline with ammonia tank 5, and outlet ball valve 9 is connected with pressure-regulating portion subentry pipeline by pipeline; The pressure-regulating portion branch comprises filter 13, ammonia pneumatic control valve 14, ammonia outlet valve 15, ammonia flow meter 16 and static mixing chamber 17 and is connected in series by pipeline; Compressed air partly comprises air inlet valve 18, air pneumatic control valve 19, air outlet valve 20 and mass air flow sensor 21 and by the pipeline laggard static mixing chamber 17 of going into that is connected in series; Skid chassis 22 is rectangular steel plates, and all components of liquefied ammonia part, gasification part, pressure regulation part and compressed air part is all directly fixed with skid chassis 22 or passed through the pipeline indirect securement, and the angular region on skid chassis 22 is provided with four suspension hooks 23.
Among this embodiment, whole skid power plant denitrification apparatus installs, and transports the tank car of liquefied ammonia and reaches the spot, and with sebific duct the liquefied ammonia import is linked to each other with the liquid outlet of tank car, by unloading ammonia pump liquefied ammonia is driven in the ammonia tank.Liquefied ammonia enters into liquefied ammonia gasifier forced gasification, handling through the pressure regulation of ammonia pressure regulation metering pipeline and metering laggardly to go in static mixing gas, air regulates through compressed air equally that metering is laggard goes in static mixer, two kinds of gas is mixed into uniformly in static mixer in the flue of power plant and mixes with flue gas, carries out denitration.Entire equipment is all concentrated and is made on the chassis, is convenient to mobile transportation, saves a large amount of engineering times and occupation of land etc. like this.
Among this embodiment, ammonia tank is the sealing low-temperature storage tank.The liquefied ammonia gasifier adopts Tianjin Huamai Gas Technology Development Co., Ltd.'s product, and model is HSV.Unload the YQB15-5 product that ammonia pump adopts Harbin hydrocarbon pump factory to produce, the TDS-200 product that flowmeter adopts sky, Tianjin letter instrucment and meter plant to produce.Steel skid chassis is of a size of 12 meters of length, 2.2 meters of width.
Claims (1)
1. whole skid power plant denitrification apparatus, it is characterized in that: formed by liquefied ammonia part, gasification part, pressure regulation part, compressed air part and skid chassis, liquefied ammonia partly comprises inlet valve, filter, unloads ammonia pump, check-valves and ammonia tank and be connected in series by the liquefied ammonia pipeline, is parallel with bypass line with the liquefied ammonia pipeline and is connected with the import and export pipeline of ammonia tank respectively and is provided with bypass valve; The gasification part comprises inlet ball valve, liquefied ammonia gasifier, steam pipework and outlet ball valve and is connected in series by pipeline, the liquefied ammonia gasifier is coiled indirect heat exchange structure, steam pipework comprises steam inlet valve, pressure-reducing valve and steam outlet valve and is connected in series by pipeline, steam outlet valve is connected by the coil pipe of pipeline with the liquefied ammonia gasifier, inlet ball valve is connected with the outlet of ammonia tank by pipeline, and the outlet ball valve is connected with pressure-regulating portion subentry pipeline by pipeline; The pressure-regulating portion branch comprises filter, check-valves, ammonia pneumatic control valve, ammonia outlet valve, ammonia flow meter and static mixing chamber and is connected in series by pipeline; Compressed air partly comprises air inlet valve, air pneumatic control valve, air outlet valve and mass air flow sensor and by the pipeline laggard static mixing chamber of going into that is connected in series; The skid chassis is rectangular steel plates, and all components of liquefied ammonia part, gasification part, pressure regulation part and compressed air part is all directly fixed with the skid chassis or passed through the pipeline indirect securement, and the angular region on skid chassis is provided with four suspension hooks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561748 CN102078755B (en) | 2010-11-26 | 2010-11-26 | Integrally skid-mounted denitration device of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561748 CN102078755B (en) | 2010-11-26 | 2010-11-26 | Integrally skid-mounted denitration device of power plant |
Publications (2)
| Publication Number | Publication Date |
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| CN102078755A CN102078755A (en) | 2011-06-01 |
| CN102078755B true CN102078755B (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010561748 Expired - Fee Related CN102078755B (en) | 2010-11-26 | 2010-11-26 | Integrally skid-mounted denitration device of power plant |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055963B (en) * | 2013-01-25 | 2015-02-04 | 龙净科杰环保技术（上海）有限公司 | Integrated regeneration system and method of mobile SCR (Selective Catalytic Reduction) denitrification catalyst |
| CN104474863B (en) * | 2014-11-13 | 2016-06-29 | 中国石油化工股份有限公司 | A kind of skid-mounted type Crouse's sulfur-containing tail gas processes device |
| CN107029548A (en) * | 2015-07-14 | 2017-08-11 | 中国人民解放军63605部队 | A kind of skid-mounted device for uns-dimethylhydrazine waste gas harmless treatment |
| CN107879359A (en) * | 2017-12-11 | 2018-04-06 | 营口萌达电子科技有限公司 | A kind of liquid ammonia evaporator skid mounted equipment |
| CN109603543A (en) * | 2018-12-27 | 2019-04-12 | 华能国际电力股份有限公司丹东电厂 | It is a kind of for the interim for ammonia system and application method of power plant's SCR denitration device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0278241A1 (en) * | 1987-02-11 | 1988-08-17 | Deutsche Babcock Anlagen Gmbh | Process for mixing ammoniac into a flue gas stream |
| CN201524525U (en) * | 2009-09-11 | 2010-07-14 | 宇星科技发展(深圳)有限公司 | SCR flue gas denitrating device |
| CN201643957U (en) * | 2010-01-28 | 2010-11-24 | 天津市奥利达设备工程技术有限公司 | Direct water blowing type liquid ammonia gasifier for steam water bath |
| CN201889152U (en) * | 2010-11-26 | 2011-07-06 | 天津市华迈燃气技术发展有限公司 | Denitration unit of overall skid-mounted power plant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3924669B2 (en) * | 1998-05-27 | 2007-06-06 | 日立造船株式会社 | Method for producing aqueous ammonia solution |
-
2010
- 2010-11-26 CN CN 201010561748 patent/CN102078755B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0278241A1 (en) * | 1987-02-11 | 1988-08-17 | Deutsche Babcock Anlagen Gmbh | Process for mixing ammoniac into a flue gas stream |
| CN201524525U (en) * | 2009-09-11 | 2010-07-14 | 宇星科技发展(深圳)有限公司 | SCR flue gas denitrating device |
| CN201643957U (en) * | 2010-01-28 | 2010-11-24 | 天津市奥利达设备工程技术有限公司 | Direct water blowing type liquid ammonia gasifier for steam water bath |
| CN201889152U (en) * | 2010-11-26 | 2011-07-06 | 天津市华迈燃气技术发展有限公司 | Denitration unit of overall skid-mounted power plant |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-44230A 2000.02.15 |
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Address after: 300384 Tianjin Huayuan Industrial Park Haitai development five road eight Applicant after: Tianjin Huamai Gas Equipment Co., Ltd. Address before: 300384 Tianjin Huayuan Industrial Park Haitai development five road eight Applicant before: Tianjin Huamai Gas Technology Development Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: TIANJIN HUAMAI GAS TECHNOLOGY DEVELOPMENT CO., LTD. TO: TIANJIN HUAMAI GAS EQUIPMENT CO., LTD. |
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