CN213037422U - Ammonia water ammonia still device for waste incineration denitration - Google Patents
Ammonia water ammonia still device for waste incineration denitration Download PDFInfo
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- CN213037422U CN213037422U CN202021387811.9U CN202021387811U CN213037422U CN 213037422 U CN213037422 U CN 213037422U CN 202021387811 U CN202021387811 U CN 202021387811U CN 213037422 U CN213037422 U CN 213037422U
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Abstract
The utility model discloses an aqueous ammonia evaporates ammonia device for msw incineration denitration, aqueous ammonia evaporates ammonia device includes: the ammonia distillation device is configured to gasify the denitration reducing agent into ammonia gas and is provided with an inlet and an outlet, wherein the inlet is used for introducing a heating agent into the ammonia distillation device, and the outlet is used for leading out the gasified ammonia gas; a first conduit in communication with the inlet configured to introduce a heating agent into the inlet via the first conduit; a second conduit in communication with the outlet configured to pass a heating agent into the outlet. A ammonia water ammonia still device for msw incineration denitration is high-efficient, simple, prevent that condensation, adjustable temperature, the ammonia preparation facilities that the power consumption is low, is applicable to the preparation of waste power plant SCR denitration ammonia.
Description
Technical Field
The utility model relates to a flue gas treatment field particularly relates to an aqueous ammonia evaporates ammonia device for msw incineration denitration.
Background
SCR denitration is to make NOx and reducing agent NH in the presence of catalyst3A technique capable of reacting at low temperatures (150 ℃ C. and 400 ℃ C.). The usual reactants: liquid ammonia, ammonia water and urea. Wherein the reactant is gasified into ammonia gas before entering the reaction module, so as to be mixed with the flue gas more quickly and better and prevent liquid drops from damaging the reactor and the catalyst. The required system is the ammonia gas preparation system.
For an ammonia gas preparation system with a reactant of dilute ammonia water, hot air or clean hot flue gas is usually adopted to heat the dilute ammonia water, so that ammonia gas is evaporated and then enters an SCR reactor to react with NOx in the flue gas under the action of a catalyst.
The existing commonly used ammonia water ammonia distillation device has complex system; the occupied area is large; the clean flue gas (air) needs to be heated to a higher temperature, and if the temperature is lower, the outlet of the ammonia still can have the defects of condensation and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that exists at present, provide an aqueous ammonia evaporates ammonia device for msw incineration denitration, aqueous ammonia evaporates ammonia device and includes:
the ammonia distillation device is configured to gasify the denitration reducing agent into ammonia gas and is provided with an inlet and an outlet, wherein the inlet is used for introducing a heating agent into the ammonia distillation device, and the outlet is used for leading out the gasified ammonia gas;
a first conduit in communication with the inlet configured to direct a heating agent into the inlet via the first conduit;
a second conduit in communication with the outlet configured to pass a heating agent into the outlet.
Optionally, the first and second conduits are in communication.
Optionally, one end of the second pipeline is arranged on the pipe body of the first pipeline, and the other end of the second pipeline is communicated with the outlet.
Optionally, the ammonia still has a first section, a second section and a third section arranged from bottom to top.
Optionally, the first portion is a cylindrical structure, the second portion is a conical structure with a top dimension smaller than a bottom dimension, and the third portion is a cylindrical structure.
Optionally, the second conduit communicates with the top of the third portion.
Optionally, a spray gun is arranged at the bottom of the ammonia still and configured to spray the denitration reducing agent after atomization.
Optionally, the first pipeline is arranged horizontally, and the second pipeline is arranged vertically.
Optionally, a valve is disposed on the second pipeline to control the flow of the heating agent.
Optionally, the heating agent is electrically heated clean flue gas or air.
A ammonia water ammonia still device for msw incineration denitration is high-efficient, simple, prevent that condensation, adjustable temperature, the ammonia preparation facilities that the power consumption is low, is applicable to the preparation of waste power plant SCR denitration ammonia.
The utility model has the advantages that:
(1) the heated clean flue gas introduced into the outlet of the ammonia still ensures the temperature at the outlet of the ammonia still and ensures that no condensation exists at the outlet;
(2) the heated clean flue gas entering from the outlet of the ammonia still can increase the disturbance in the device and further ensure the uniform heating of the dilute ammonia water;
(3) because of the existence of the hot clean flue gas entering from the outlet of the ammonia still, the temperature at the outlet of the ammonia still can be prevented from being too low, the temperature of the clean flue gas after being heated can be properly reduced, and the electricity consumption cost of the electric heater can be saved;
(4) the flow of the branch can be adjusted by the adjusting valve on the branch, thereby adjusting the temperature in the ammonia still.
Drawings
The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.
In the drawings:
figure 1 is the utility model discloses a structural schematic diagram of an aqueous ammonia still ammonia device for msw incineration denitration.
Reference symbols of the drawings
101. Inlet port
102. An outlet
103. Third part
104. The second part
105. The first part
106. First pipeline
107. Second pipeline
108. Valve gate
109. Spray gun
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals refer to like elements throughout.
It will be understood that, although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present invention.
Spatial relational terms such as "under," "below," "under," "above," "over," and the like may be used herein for convenience in describing the relationship of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
Embodiments of the invention are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of the invention. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, embodiments of the invention should not be limited to the particular shapes of regions illustrated herein, but are to include deviations in shapes that result, for example, from manufacturing. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of the present invention.
In order to provide a thorough understanding of the present invention, detailed steps and detailed structures will be provided in the following description in order to explain the technical solution provided by the present invention. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
At present, cold flue gas/cold air is heated by electric heating, and in order to prevent incomplete evaporation of ammonia water, the temperature of clean flue gas is usually higher by an electric heating/steam heater, so that certain energy waste is caused; if the heating temperature is low, the problems of condensation and the like can occur at the outlet of the ammonia still.
In order to solve the problem, the utility model provides a high-efficient, simple, prevent condensing, adjustable temperature, power consumption are low ammonia water ammonia still device is applicable to the preparation of rubbish power plant SCR denitration ammonia, ammonia water ammonia still device includes:
the ammonia distillation device is configured to gasify the denitration reducing agent into ammonia gas and is provided with an inlet and an outlet, wherein the inlet is used for introducing a heating agent into the ammonia distillation device, and the outlet is used for leading out the gasified ammonia gas;
a first conduit in communication with the inlet configured to direct a heating agent into the inlet via the first conduit;
a second conduit in communication with the outlet configured to pass a heating agent into the outlet.
The utility model has the advantages that:
(1) the heated clean flue gas introduced into the outlet of the ammonia still ensures the temperature at the outlet of the ammonia still and ensures that no condensation exists at the outlet;
(2) the heated clean flue gas entering from the outlet of the ammonia still can increase the disturbance in the device and further ensure the uniform heating of the dilute ammonia water;
(3) because of the existence of the hot clean flue gas entering from the outlet of the ammonia still, the temperature at the outlet of the ammonia still can be prevented from being too low, the temperature of the clean flue gas after being heated can be properly reduced, and the electricity consumption cost of the electric heater can be saved;
(4) the flow of the branch can be adjusted by the adjusting valve on the branch, thereby adjusting the temperature in the ammonia still.
Example one
It is right below to combine the attached drawing the utility model discloses an aqueous ammonia evaporates ammonia device carries out detailed description, wherein figure 1 is the utility model discloses a structural schematic diagram that is used for the aqueous ammonia of msw incineration denitration to evaporate ammonia device.
The garbage incineration in the utility model refers to a mode of innocent treatment of garbage incineration by adopting a grate furnace or a fluidized bed and other equipment. The smoke generated in the burning process contains pollutants such as NOx, and can be discharged after reaching the standard after being treated. SCR denitration is a smoke selective catalytic reduction denitration technology, and a reducing agent such as ammonia reacts with NOx in smoke in the presence of a catalyst to generate pollution-free N2. The utility model discloses in if do not have the special explanation, msw incineration, SCR denitration and ammonia preparation system all refer to this explanation.
As shown in fig. 1, the ammonia water distillation apparatus of the present application includes: the inlet 101, the outlet 102, the third portion 103, the second portion 104, the first portion 105, the first pipe 106, the second pipe 107, the valve 108 and the spray gun 109, and the structure of each portion will be described in detail with reference to the drawings.
The utility model discloses in, ammonia still equipment is that the device that turns into gaseous state ammonia with denitration reduction reagent such as liquid ammonia, aqueous ammonia, urea etc. in order to mix the reaction with the flue gas.
As shown in FIG. 1, the ammonia distillation apparatus has an inlet 101 and an outlet 102, which are respectively disposed at two ends of the ammonia distillation apparatus, for example, the inlet 101 is disposed at the bottom of the ammonia distillation apparatus, and the outlet 102 is disposed at the top of the ammonia distillation apparatus.
The inlet 101 is used for introducing a heating agent into the ammonia still to convert reducing agents such as liquid ammonia, ammonia water and urea into gaseous ammonia gas to be mixed and reacted with the flue gas.
The outlet 102 is used for leading out the gasified ammonia gas to be mixed and reacted with the flue gas to be treated.
The heating agent may be heated air or clean flue gas, but is not limited to one.
For example, in an embodiment of the utility model, clean flue gas is chooseed for use to the heating agent, and clean flue gas heats through electric heater unit, and the main line of the clean flue gas after the heating lets in the ammonia still entry, carries out the heat transfer with weak aqua ammonia, makes the ammonia evaporation.
The ammonia distillation equipment comprises a third part 103, a second part 104 and a first part 105 which are arranged from top to bottom in sequence, as shown in fig. 1.
Wherein the third portion 103 is a cylindrical structure, the second portion 104 is a conical structure, and the first portion 105 is a cylindrical structure.
Optionally, the sizes of the third portion 103, the second portion 104, and the first portion 105 decrease in sequence, wherein the size refers to the diameters of the third portion 103, the second portion 104, and the first portion 105.
In order to solve the problem that exists at present the ammonia water evaporates ammonia device sets up two pipelines, for example the clean flue gas after the heating has the export that one sweetgum fruit goes into evaporating ammonia device, guarantees to evaporate ammonia device exit and does not have the condensation, can also increase the disturbance in evaporating ammonia device, guarantees to be heated evenly.
Specifically, in an embodiment, the ammonia water distilling apparatus includes a first pipeline 106 and a second pipeline 107, wherein the first pipeline 106 is communicated with the inlet and is configured to introduce a heating agent into the inlet through the first pipeline; the second conduit 107 communicates with the outlet and is configured to pass a heating agent into the outlet.
Specifically, one end of the second pipeline 107 is disposed on the pipe body of the first pipeline 106 to communicate with the first pipeline 106, so as to introduce a part of clean flue gas from the first pipeline 106 into the second pipeline 107, and transmit the clean flue gas to the outlet through the second pipeline, so as to ensure that no condensation exists at the outlet of the ammonia still.
Wherein the second conduit 107 communicates with the top of the third portion 103.
Optionally, the first pipeline 106 is horizontally arranged, and the second pipeline 107 is vertically arranged, so as to introduce clean flue gas into the top of the ammonia water evaporation device from the bottom of the ammonia water evaporation device along a vertical direction. It should be noted that, in the present invention, the arrangement manner of the first pipeline 106 and the second pipeline 107 is not limited to horizontal or vertical, and may be arranged according to space, field and specific needs, which are not listed here.
Optionally, a valve 108 is disposed on the second pipeline 107 to control the flow of the heating agent. The temperature in the ammonia still can be controlled by adjusting the flow of the heated clean flue gas of the second pipeline 107, the ammonia still speed can be controlled, and the electric energy can be saved.
In the utility model, by arranging the first pipeline and the second pipeline, the clean flue gas introduced into the inlet of the ammonia still heats the dilute ammonia water, so that the ammonia gas is evaporated; the heated clean flue gas introduced into the outlet of the ammonia still ensures that no condensation exists at the outlet of the ammonia still and increases the disturbance in the ammonia still; the flow of clean flue gas after the heating that can adjust this branch road comes the temperature in the ammonia still device of adjusting to and the speed of evaporating ammonia, guarantee to evaporate ammonia device exit and do not have the condensation, also can increase the disturbance in the ammonia still device, guarantee to be heated evenly.
Optionally, a spray gun is arranged at the bottom of the ammonia still and configured to spray the denitration reducing agent after atomization.
The specific structure and type of the spray gun can be selected according to actual needs, and is not further limited herein.
The utility model has the advantages that:
(1) the heated clean flue gas introduced into the outlet of the ammonia still ensures the temperature at the outlet of the ammonia still and ensures that no condensation exists at the outlet;
(2) the heated clean flue gas entering from the outlet of the ammonia still can increase the disturbance in the device and further ensure the uniform heating of the dilute ammonia water;
(3) because of the existence of the hot clean flue gas entering from the outlet of the ammonia still, the temperature at the outlet of the ammonia still can be prevented from being too low, the temperature of the clean flue gas after being heated can be properly reduced, and the electricity consumption cost of the electric heater can be saved;
(4) the flow of the branch can be adjusted by the adjusting valve on the branch, thereby adjusting the temperature in the ammonia still.
More than synthesizing, the utility model discloses according to msw incineration project self characteristics, improve the ammonia preparation system, research and development one set can temperature regulation, ensure the ammonia preparation system of ammonia still device export noncondensation. The system has the advantages of energy conservation, simple structure, small operation and maintenance amount, low cost, small occupied area and the like.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an aqueous ammonia evaporates ammonia device for msw incineration denitration which characterized in that, aqueous ammonia evaporates ammonia device and includes:
the ammonia distillation device is configured to gasify the denitration reducing agent into ammonia gas and is provided with an inlet and an outlet, wherein the inlet is used for introducing a heating agent into the ammonia distillation device, and the outlet is used for leading out the gasified ammonia gas;
a first conduit in communication with the inlet configured to introduce a heating agent into the inlet via the first conduit;
a second conduit in communication with the outlet configured to pass a heating agent into the outlet.
2. The ammonia water evaporation device of claim 1, wherein the first pipeline and the second pipeline are in communication.
3. The ammonia water evaporation device as claimed in claim 2, wherein one end of the second pipeline is arranged on the pipe body of the first pipeline, and the other end of the second pipeline is communicated with the outlet.
4. The ammonia water distilling apparatus according to claim 1, wherein the ammonia distilling device has a first portion, a second portion and a third portion arranged from bottom to top.
5. The ammonia water distilling apparatus of claim 4, wherein the first portion is a cylindrical structure, the second portion is a conical structure with a top size smaller than a bottom size, and the third portion is a cylindrical structure.
6. The ammonia water distilling apparatus according to claim 5, wherein the second pipe communicates with a top of the third portion.
7. The ammonia water evaporation device as claimed in claim 1, wherein a spray gun is arranged at the bottom of the ammonia evaporation equipment and is configured to spray the denitration reducing agent after atomization.
8. The ammonia water evaporation device of claim 1, wherein the first pipeline is horizontally arranged, and the second pipeline is vertically arranged.
9. The ammonia water distilling apparatus according to claim 1, wherein a valve is provided on the second pipeline to control the flow rate of the heating agent.
10. The ammonia water distilling apparatus according to claim 1, wherein the heating agent is electrically heated clean flue gas or air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021387811.9U CN213037422U (en) | 2020-07-14 | 2020-07-14 | Ammonia water ammonia still device for waste incineration denitration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021387811.9U CN213037422U (en) | 2020-07-14 | 2020-07-14 | Ammonia water ammonia still device for waste incineration denitration |
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| Publication Number | Publication Date |
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| CN213037422U true CN213037422U (en) | 2021-04-23 |
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| CN202021387811.9U Active CN213037422U (en) | 2020-07-14 | 2020-07-14 | Ammonia water ammonia still device for waste incineration denitration |
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