CN212651608U - System capable of quickly adjusting ammonia gas supply - Google Patents
System capable of quickly adjusting ammonia gas supply Download PDFInfo
- Publication number
- CN212651608U CN212651608U CN202020837289.3U CN202020837289U CN212651608U CN 212651608 U CN212651608 U CN 212651608U CN 202020837289 U CN202020837289 U CN 202020837289U CN 212651608 U CN212651608 U CN 212651608U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- ammonia
- fixedly connected
- liquid ammonia
- secondary air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a system capable of quickly adjusting ammonia supply, including liquid ammonia storage jar, liquid ammonia storage jar passes through pipeline one and hot overgrate air pipeline fixed connection, pipeline one is from left to right fixedly connected with solenoid valve and flowmeter one in proper order, fixedly connected with liquid ammonia gasification pipeline in the hot overgrate air pipeline, the one end fixedly connected with pipeline two of pipeline one is kept away from to hot overgrate air pipeline, the female pipe of ammonia is spouted to the one end fixedly connected with that pipeline two was kept away from to pipeline two, spout the female intraductal fixedly connected with static mixer of ammonia, the lower extreme fixedly connected with pipeline three of pipeline two, lie in pipeline three left side fixedly connected with solenoid valve two on the two of pipeline, pipeline three keeps away from the one end fixed connection of pipeline two on the desulfurizing tower, pipeline three is from the top down fixedly connected with solenoid valve three in proper order, frequency conversion pump and. The utility model has the advantages of being scientific and reasonable in structure, it is convenient to spout ammonia and adjust, and the cost of manufacture is low, is fit for using widely.
Description
Technical Field
The utility model relates to a denitration ammonia supply system of power plant specifically is a system that can quick adjustment ammonia supply.
Background
In the denitration process of a thermal power plant, when the load of a unit changes or the quality of coal changes, the generation amount of NOx at the outlet of a hearth changes, and the demand of a system for ammonia gas changes. The system that partial power plant adopted urea pyrolysis or urea hydrolysis, this type of system generally follows the nature relatively poor, needs certain regulation time, can cause the condition of spouting ammonia or spouting ammonia less, and it causes ammonia escape volume to increase easily to spout ammonia, and it is overproof that ammonia less is spouted to have probably to lead to export NOx to discharge, and for this, but this application provides a system of quick adjustment ammonia supply.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a but the system of quick adjustment ammonia supply, solve the current denitration of power plant and spout the problem that ammonia system adjustment spouts the ammonia volume lag.
The utility model provides a technical scheme that above-mentioned problem adopted is: a system capable of rapidly adjusting ammonia supply comprises a liquid ammonia storage tank, and is characterized in that: the utility model discloses a desulfurization tower, including pipeline one, hot overgrate air pipeline, pipeline two, liquid ammonia storage jar passes through pipeline one and hot overgrate air pipeline fixed connection, from left to right in proper order fixedly connected with solenoid valve one and flowmeter one on the pipeline one, fixedly connected with liquid ammonia gasification pipeline in the hot overgrate air pipeline, the one end fixedly connected with pipeline two of pipeline one is kept away from, the female pipe of fixedly connected with static mixer in the female pipe of ammonia spouts, the lower extreme fixedly connected with pipeline three of pipeline two, lie in pipeline two left side fixedly connected with solenoid valve two of pipeline three, pipeline three keeps away from the one end fixed connection of pipeline two on the desulfurizing tower, from the top down in proper order fixedly connected with solenoid valve three, inverter pump and flowmeter two on the pipeline three.
Furthermore, the hot secondary air pipeline is a hot air pipeline led out from the flue of the power plant.
Further, the liquid ammonia gasification pipeline is respectively communicated with the first pipeline and the second pipeline in a sealing mode.
Furthermore, the outer wall of the liquid ammonia gasification pipeline is provided with heat absorption fins.
Further, the ammonia injection main pipe is communicated with an inlet of the desulfurizing tower through a third pipeline.
Compared with the prior art, the utility model, have following advantage and effect: the utility model provides a system that can quick adjustment ammonia supply adopts new structure, has set up the ammonia system that spouts that can adjust, at thermal power plant denitration in-process, can mix through liquid ammonia and hot overgrate air, and the formation of quick adjustment ammonia avoids NOx to discharge and exceeds standard. When the ammonia amount in the existing ammonia injection main pipe is too high, redundant ammonia is introduced into the inlet of the desulfurizing tower through a pipeline, so that the supply of ammonia is reduced. Reduce the excessive condition of spouting ammonia or spouting ammonia by a short time through above-mentioned method to avoided the excessive ammonia that spouts to arouse the ammonia escape volume to increase easily, spout ammonia by a short time and can lead to the problem that export NOx discharged and exceeds standard, the utility model discloses rational in infrastructure, it is convenient to spout ammonia and adjust, and the cost of manufacture is low, is fit for using widely.
Drawings
Fig. 1 is a schematic structural diagram of a system capable of rapidly adjusting ammonia gas supply in an embodiment of the present invention.
In the figure: the system comprises a liquid ammonia storage tank 1, a first electromagnetic valve 2, a first pipeline 3, a first flow meter 4, a hot secondary air pipeline 5, a liquid ammonia gasification pipeline 6, a heat absorption fin 601, a second pipeline 7, a mother ammonia spraying pipe 8, a second electromagnetic valve 9, a static mixer 10, a third pipeline 11, a third electromagnetic valve 12, a variable frequency pump 13, a second flow meter 14 and a desulfurizing tower 15.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1, a system capable of rapidly adjusting ammonia supply comprises a liquid ammonia storage tank 1, wherein the liquid ammonia storage tank 1 is used for storing liquid ammonia, the liquid ammonia storage tank 1 is fixedly connected with a hot secondary air pipeline 5 through a pipeline I3, a solenoid valve I2 and a flow meter I4 are fixedly connected to the pipeline I3 from left to right in sequence, the flow meter I4 can display the flow of the passing liquid ammonia, a liquid ammonia gasification pipeline 6 is fixedly connected to the interior of the hot secondary air pipeline 5, the liquid ammonia gasification pipeline 6 can gasify the liquid ammonia through high temperature in the hot secondary air pipeline 5, a pipeline II 7 is fixedly connected to one end of the hot secondary air pipeline 5 far away from the pipeline I3, an ammonia injection main pipe 8 is fixedly connected to one end of the pipeline II 7 far away from the hot secondary air pipeline 5, a static mixer 10 is fixedly connected to the interior of the ammonia injection main pipe 8, and the static mixer 10 can mix the ammonia, the lower extreme fixedly connected with pipeline three 11 of pipeline two 7, lie in pipeline three 11 left side fixedly connected with solenoid valve two 9 on the pipeline two 7, the one end fixed connection that pipeline two 7 was kept away from to pipeline three 11 is on desulfurizing tower 15, from the top down fixedly connected with solenoid valve three 12 in proper order on the pipeline three 11, variable frequency pump 13 and flowmeter two 14, the control that variable frequency pump 13 can be fine is from spouting the volume of taking out of ammonia in the ammonia mother pipe 8, flowmeter two 14 can show the flow that the ammonia was taken out.
The hot secondary air pipeline 5 is a hot air pipeline led out from the flue of the power plant, and the hot secondary air pipeline 5 is a mature technology in the power plant and fully utilizes the heat energy in the flue of the power plant; the liquid ammonia gasification pipeline 6 is respectively communicated with the first pipeline 3 and the second pipeline 7 in a sealing way, the liquid ammonia gasification pipeline 6 is positioned in the hot secondary air pipeline 5 and can gasify liquid ammonia entering from the first pipeline 3, and then ammonia is output from the second pipeline 7; the outer wall of the liquid ammonia gasification pipeline 6 is provided with heat absorption fins 601, and the heat absorption fins 601 are convenient for the liquid ammonia gasification pipeline 6 to more fully absorb heat in the hot secondary air pipeline 5; the ammonia injection main pipe 8 is communicated with an inlet of the desulfurizing tower 15 through a third pipeline 11, so that ammonia gas can be conveniently conveyed into a hearth of a power plant.
The electrical components presented here are electrically connected to an external master controller and 220V mains, and the master controller may be a conventional known device for controlling a computer or the like.
The working method comprises the following steps: when the device is installed, an ammonia injection main pipe 8 is fixedly communicated with a hearth opening of a power plant, a liquid ammonia gasification pipeline 6 is fixed inside a hot secondary air pipeline 5, when the device is used, a first electromagnetic valve 2 and a second electromagnetic valve 9 are opened, liquid ammonia enters the liquid ammonia gasification pipeline 6 in the hot secondary air pipeline 5 from a liquid ammonia storage tank 1 through a first pipeline 3, a first flow meter 4 displays the flow of the liquid ammonia, the liquid ammonia gasification pipeline 6 is located in the hot secondary air pipeline 5 with high temperature, the liquid ammonia is gasified at high temperature when passing through, the gasified ammonia enters the ammonia injection main pipe 8 through a second pipeline 7, and is fully mixed with ammonia in the original main pipe through a static mixer 10 in the ammonia injection main pipe 8, so that the content of the ammonia in the ammonia injection main pipe 8 is improved;
and closing the second electromagnetic valve 9, opening the third electromagnetic valve 12, simultaneously opening the variable frequency pump 13, pumping out the ammonia gas in the ammonia spraying main pipe 8 by the variable frequency pump 13 through the second pipeline 7, and entering the desulfurizing tower 15 through the third pipeline 11, thereby preventing the problem of ammonia escape caused by excessive ammonia spraying.
Those not described in detail in this specification are well within the skill of the art.
Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the scope of the present invention.
Claims (5)
1. A system for the rapid regulation of the supply of ammonia, comprising a liquid ammonia storage tank (1), characterized in that: the device comprises a liquid ammonia storage tank (1), a first pipeline (3) and a first hot secondary air pipeline (5) which are fixedly connected, a first electromagnetic valve (2) and a first flowmeter (4) are fixedly connected on the first pipeline (3) from left to right in sequence, a liquid ammonia gasification pipeline (6) is fixedly connected in the first hot secondary air pipeline (5), a second pipeline (7) is fixedly connected at one end of the first pipeline (3) far away from the second hot secondary air pipeline (5), an ammonia spraying main pipe (8) is fixedly connected at one end of the second pipeline (7) far away from the second hot secondary air pipeline (5), a static mixer (10) is fixedly connected in the ammonia spraying main pipe (8), a third pipeline (11) is fixedly connected at the lower end of the second pipeline (7), a second electromagnetic valve (9) is fixedly connected at the left side of the third pipeline (11) on the second pipeline (7), and one end of the third pipeline (11) far away from the second pipeline (7) is fixedly connected on a, and the pipeline III (11) is fixedly connected with an electromagnetic valve III (12), a variable frequency pump (13) and a flowmeter II (14) from top to bottom in sequence.
2. A system for rapidly regulating the supply of ammonia gas as defined in claim 1 wherein: the hot secondary air pipeline (5) is a hot air pipeline led out from the flue of the power plant.
3. A system for rapidly regulating the supply of ammonia gas as defined in claim 1 wherein: and the liquid ammonia gasification pipeline (6) is respectively communicated with the pipeline I (3) and the pipeline II (7) in a sealing way.
4. A system for rapidly regulating the supply of ammonia gas as defined in claim 1 wherein: and the outer wall of the liquid ammonia gasification pipeline (6) is provided with heat absorption fins (601).
5. A system for rapidly regulating the supply of ammonia gas as defined in claim 1 wherein: and the ammonia injection main pipe (8) is communicated with an inlet of the desulfurizing tower (15) through a third pipeline (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837289.3U CN212651608U (en) | 2020-05-19 | 2020-05-19 | System capable of quickly adjusting ammonia gas supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837289.3U CN212651608U (en) | 2020-05-19 | 2020-05-19 | System capable of quickly adjusting ammonia gas supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212651608U true CN212651608U (en) | 2021-03-05 |
Family
ID=74747479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020837289.3U Active CN212651608U (en) | 2020-05-19 | 2020-05-19 | System capable of quickly adjusting ammonia gas supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212651608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672295A (en) * | 2020-05-19 | 2020-09-18 | 华电电力科学研究院有限公司 | System capable of quickly adjusting ammonia gas supply and working method thereof |
-
2020
- 2020-05-19 CN CN202020837289.3U patent/CN212651608U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672295A (en) * | 2020-05-19 | 2020-09-18 | 华电电力科学研究院有限公司 | System capable of quickly adjusting ammonia gas supply and working method thereof |
| CN111672295B (en) * | 2020-05-19 | 2024-07-30 | 华电电力科学研究院有限公司 | System capable of rapidly adjusting ammonia gas supply and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212651608U (en) | System capable of quickly adjusting ammonia gas supply | |
| CN106732242B (en) | The system that photocatalysis carbon dioxide prepares hydrocarbon fuel methanol | |
| CN114195095A (en) | Novel high-temperature continuous solid block hydrogen generation device hydrogen generation control system | |
| CN103833048A (en) | System and method for rapid preparation of ammonia water | |
| CN209451639U (en) | A kind of denitrating flue gas ammonia gas supply system | |
| CN213777864U (en) | Flow distribution device of multi-element heat supply heat source | |
| CN111672295B (en) | System capable of rapidly adjusting ammonia gas supply and working method thereof | |
| CN116576441A (en) | Energy storage system and tower type solar thermal power generation system | |
| CN202078851U (en) | Conveyer device for oxidized air and dry desulfurizing agent | |
| CN212799638U (en) | Improved generation sulfur trioxide gas production system | |
| CN203458992U (en) | Device for making ammonia water from liquid ammonia | |
| CN211041397U (en) | Based on frostproofing air heating device of methyl alcohol nanometer catalytic oxidation mine well head | |
| CN210261140U (en) | Ammonia water preparation system capable of simultaneously preparing ammonia water with two concentrations | |
| CN203108427U (en) | Automatic adjusting and spraying equipment for denitrating cement kiln | |
| CN104989502B (en) | A kind of automobile-used SCR hydrolysis of urea reactor | |
| CN220041931U (en) | Hydrogen storage tank temperature control system of hydrogen fuel cell | |
| CN107569869B (en) | Cold and hot flow control energy-conserving yolk oil extraction system of pipe | |
| CN109990494A (en) | Energy-efficient solar water supply system and its control method | |
| CN208800062U (en) | A kind of explosion-proof mixing arrangement for vehicle maintenance service liquid production and sales | |
| CN220835505U (en) | Synthetic ammonia conversion circulation cooling system | |
| CN111412519A (en) | Modular electric energy phase-change heat storage purification air supply heating system | |
| CN205152025U (en) | Gas circulation formula of ventilating a little methane fermentation device | |
| CN207227355U (en) | A kind of coal-fired gasification hydrogen producer | |
| CN219117328U (en) | Glass melting furnace bin capable of realizing temperature self-adjustment | |
| CN102313311B (en) | Industrial heat energy recycling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |