Efficient ammonia water evaporator

Abstract

The utility model relates to the technical field of ammonia water evaporators, in particular to an efficient ammonia water evaporator which comprises an evaporator body, a gas conveying assembly is arranged on the outer side of the evaporator body, and the top end of the gas conveying assembly is connected with a spray gun installed in the evaporator body. The bottom end of the air conveying assembly is connected with a connecting pipe installed on the evaporator body, an annular collecting assembly is installed in the bottom end of the evaporator body in an attached mode, and a flow dividing and air guiding assembly extending into the collecting assembly is fixed to the end, located in the evaporator body, of the connecting pipe. Part of ammonia water spray sprayed into the evaporator body gradually gathers into water drops and drips into the collecting assembly along the inner wall of the evaporator body, and the flow dividing and gas guiding assembly can guide part of high-heat waste gas into the collecting assembly to heat the collected ammonia water, so that secondary evaporation work of the ammonia water is promoted, and the evaporation completeness of the ammonia water is improved.

Description

Technical Field

[0001] This utility model relates to the field of ammonia evaporator technology, specifically a high-efficiency ammonia evaporator. Background Technology

[0002] In denitrification operations, most currently, the method of adding ammonia water is used to achieve denitrification of flue gas. In order to ensure that the ammonia water can be fully mixed with the flue gas, the flue gas is usually passed through an ammonia water evaporator, and the ammonia water is injected into the evaporator in the form of a spray. The ammonia water is evaporated by the high temperature flue gas, thereby achieving full mixing of ammonia water and flue gas and the purpose of denitrification.

[0003] However, in the operation of existing ammonia evaporators, the temperature near the pipe wall is reduced because the pipe wall is always in close contact with the external environment. When the ammonia spray adheres to the pipe wall, it will gradually form water droplets, causing dripping. This part of the ammonia is difficult to contact with the high-temperature flue gas and evaporate, which will affect the mixing of ammonia and flue gas and the completeness of evaporation. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency ammonia evaporator to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is: a high-efficiency ammonia water evaporator, including an evaporator body, a gas supply component is provided on the outside of the evaporator body, a spray gun installed inside the evaporator body is connected to the top of the gas supply component, a connecting pipe installed on the evaporator body is connected to the bottom of the gas supply component, an annular collection component is fitted inside the bottom of the evaporator body, and a diversion gas guide component extending into the collection component is fixed at one end of the connecting pipe located inside the evaporator body.

[0006] The aforementioned components achieve the following effects: atomized ammonia water can be sprayed onto the evaporator body through the spray gun; high-heat exhaust gas after dust removal can be introduced into the bottom of the evaporator body to contact the atomized ammonia water, achieving the purpose of heating and evaporation. The gas supply pipe is also connected to the high-heat exhaust gas and introduces it into the spray gun and the diversion and guiding gas assembly. After the exhaust gas enters the spray gun, it undergoes preheating and pressurization with the input ammonia water to promote the evaporation of ammonia water. Some of the ammonia water sprayed into the evaporator body gradually gathers into water droplets and drips into the collection assembly along the inner wall of the evaporator body. The diversion and guiding gas assembly can introduce some of the high-heat exhaust gas into the collection assembly to heat the collected ammonia water, promote its secondary evaporation, and improve the completeness of ammonia water evaporation.

[0007] Preferably, the diversion and air guiding assembly includes a bent pipe connected to the connecting pipe, a bottom pipe fixed at the bottom end of the bent pipe, and annularly distributed diversion pipes connected to the side wall of the bottom pipe. The end of the diversion pipe away from the bottom pipe extends into the collection assembly and is connected to an atomizing head.

[0008] The above-mentioned components achieve the following effects: by using the bending pipe in conjunction with the diversion pipe, high-heat exhaust gas can be introduced from the atomizing head into the ammonia water collected in the collection component, and by using the atomizing head, the high-heat exhaust gas can promote the heating and evaporation of ammonia water.

[0009] Preferably, the air supply assembly includes an air supply pipe connected to the air inlet end of the spray gun, and a side pipe connected to the connecting pipe is fixed at the bottom end of the air supply pipe.

[0010] The aforementioned components achieve the following effects: through the gas supply pipe, high-heat exhaust gas can be introduced into the spray gun and the diversion gas guiding assembly connected to the connecting pipe, in conjunction with the side pipe.

[0011] Preferably, the collection assembly includes a collection ring fixed to the inner wall of the evaporator body, the top of the collection ring having a collection groove, and the atomizing head located in the collection groove.

[0012] The effect achieved by the above components is that the ammonia water condensed on the inner wall of the evaporator body can be collected through the collection groove on the collection ring, so that the exhaust gas from the atomizing head can come into contact with the ammonia water for secondary heating and evaporation.

[0013] Preferably, an air distribution mesh plate is fixed inside the collection ring.

[0014] The effect achieved by the above components is that the high-heat exhaust gas introduced from the bottom of the evaporator body can be evenly distributed through the air distribution mesh plate, thereby improving the heat exchange effect between the exhaust gas and the atomized ammonia water.

[0015] This utility model provides an improved high-efficiency ammonia evaporator, which has the following improvements and advantages compared with the prior art:

[0016] Firstly, this utility model uses a spray gun to spray atomized ammonia water onto the evaporator body. The bottom of the evaporator body can be introduced with high-heat exhaust gas after dust removal to contact the atomized ammonia water, achieving the purpose of heating and evaporation. The gas supply pipe is also connected to the high-heat exhaust gas and introduces it into the spray gun and the diversion and guiding gas component. After the exhaust gas enters the spray gun, it is preheated and pressurized with the input ammonia water to promote the evaporation of ammonia water. Some of the ammonia water sprayed into the evaporator body gradually gathers into water droplets and drips into the collection component along the inner wall of the evaporator body. The diversion and guiding gas component can introduce some of the high-heat exhaust gas into the collection component to heat the collected ammonia water, promote its secondary evaporation, and improve the completeness of ammonia water evaporation.

[0017] Secondly, this utility model can collect the ammonia water condensed on the inner wall of the evaporator body through the collection groove on the collection ring, which facilitates the contact between the exhaust gas from the atomizing head and the ammonia water for secondary heating and evaporation. The gas distribution mesh plate can evenly distribute the high-heat exhaust gas introduced from the bottom of the evaporator body, thereby improving the heat exchange effect between the exhaust gas and the atomized ammonia water. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the flow diversion and air guiding component in this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Evaporator body; 2. Gas supply pipe; 3. Side pipe; 4. Spray gun; 5. Connecting pipe; 6. Flow diversion and air guiding assembly; 61. Bending pipe; 62. Bottom pipe; 63. Flow diversion pipe; 64. Atomizing head; 7. Collection assembly; 71. Collection ring; 72. Collection trough; 73. Air distribution mesh plate. Detailed Implementation

[0024] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0025] This utility model provides an improved high-efficiency ammonia evaporator. The technical solution of this utility model is as follows:

[0026] In embodiments of this utility model, such as Figures 1-3As shown, a high-efficiency ammonia evaporator includes an evaporator body 1. An air supply assembly is provided on the outside of the evaporator body 1. The air supply assembly includes an air supply pipe 2 connected to the air inlet of a spray gun 4. The spray gun 4 can spray atomized ammonia water onto the evaporator body 1. High-heat exhaust gas after dust removal can be introduced into the bottom of the evaporator body 1 to contact the atomized ammonia water, achieving the purpose of heating and evaporation. A side pipe 3 connected to a connecting pipe 5 is fixed to the bottom of the air supply pipe 2. The high-heat exhaust gas can be introduced into the spray gun 4 and the connecting pipe 5 through the air supply pipe 2 in conjunction with the side pipe 3. The connecting pipe 5 connects to the diversion and gas guiding assembly 6. The top of the gas guiding assembly is connected to a spray gun 4 installed inside the evaporator body 1. After the waste gas enters the spray gun 4, it undergoes preheating and pressurization with the input ammonia water to promote ammonia evaporation. The bottom of the gas guiding assembly is connected to the connecting pipe 5 installed on the evaporator body 1. A ring-shaped collection assembly 7 is fitted inside the bottom of the evaporator body 1. The collection assembly 7 includes a collection ring 71 fixed to the inner wall of the evaporator body 1, with a collection groove 72 at the top of the collection ring 71. An atomizing head... 64 is located in the collection tank 72. The collection tank 72 on the collection ring 71 can collect the ammonia water condensed on the inner wall of the evaporator body 1, so that the exhaust gas from the atomizing head 64 can come into contact with the ammonia water for secondary heating and evaporation. A gas distribution mesh plate 73 is fixed on the inner side of the collection ring 71. The gas distribution mesh plate 73 can evenly distribute the high-heat exhaust gas introduced from the bottom of the evaporator body 1. The end of the connecting pipe 5 located inside the evaporator body 1 is fixed with a diversion guide extending into the collection assembly 7. Component 6, the diversion and gas guiding component 6 includes a bent pipe 61 connected to the connecting pipe 5. A bottom pipe 62 is fixed to the bottom end of the bent pipe 61. A ring-shaped diversion pipe 63 is connected to the side wall of the bottom pipe 62. The end of the diversion pipe 63 away from the bottom pipe 62 extends into the collection component 7 and is connected to an atomizing head 64. The bent pipe 61 can cooperate with the diversion pipe 63 to guide the high-heat exhaust gas from the atomizing head 64 into the ammonia water collected in the collection component 7. The atomizing head 64 can be used to promote the heating and evaporation of ammonia water by the high-heat exhaust gas.

[0027] The working principle of the high-efficiency ammonia evaporator provided by this utility model is as follows: Atomized ammonia water can be sprayed onto the evaporator body 1 through the spray gun 4. High-heat exhaust gas after dust removal can be introduced into the bottom of the evaporator body 1 to contact the atomized ammonia water. The air distribution plate 73 can evenly distribute the high-heat exhaust gas introduced from the bottom of the evaporator body 1 to achieve the purpose of heating and evaporation. The air supply pipe 2 is also connected to the high-heat exhaust gas and introduces it into the spray gun 4 and the diversion and guiding component 6. After the exhaust gas enters the spray gun 4, it is preheated and pressurized with the input ammonia water to promote the evaporation of ammonia water. Some of the ammonia water sprayed into the evaporator body 1 gradually gathers into water droplets and drips into the collection component 7 along the inner wall of the evaporator body 1. The collection groove 72 on the collection ring 71 can collect the ammonia water condensed on the inner wall of the evaporator body 1. The bent pipe 61 can cooperate with the diversion pipe 63 to introduce the high-heat exhaust gas from the atomizing head 64 into the ammonia water collected in the collection component 7. The atomizing head 64 can be used to promote secondary evaporation.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency ammonia evaporator, comprising an evaporator body (1), characterized in that: An air supply assembly is provided on the outside of the evaporator body (1). A spray gun (4) installed inside the evaporator body (1) is connected to the top of the air supply assembly. A connecting pipe (5) installed on the evaporator body (1) is connected to the bottom of the air supply assembly. A ring-shaped collection assembly (7) is fitted inside the bottom of the evaporator body (1). A diversion air guide assembly (6) extending into the collection assembly (7) is fixed at one end of the connecting pipe (5) inside the evaporator body (1).

2. The high-efficiency ammonia evaporator according to claim 1, characterized in that: The gas delivery assembly includes a gas delivery pipe (2) connected to the air inlet end of the spray gun (4), and a side pipe (3) connected to the connecting pipe (5) is fixed at the bottom end of the gas delivery pipe (2).

3. The high-efficiency ammonia evaporator according to claim 1, characterized in that: The diversion and air guiding assembly (6) includes a bent pipe (61) connected to the connecting pipe (5), a bottom pipe (62) is fixed at the bottom end of the bent pipe (61), and a ring-shaped diversion pipe (63) is connected to the side wall of the bottom pipe (62). The end of the diversion pipe (63) away from the bottom pipe (62) extends into the collection assembly (7) and is connected to an atomizing head (64).

4. The high-efficiency ammonia evaporator according to claim 3, characterized in that: The collection assembly (7) includes a collection ring (71) fixed on the inner wall of the evaporator body (1), and a collection groove (72) is provided at the top of the collection ring (71), and the atomizing head (64) is located in the collection groove (72).

5. The high-efficiency ammonia evaporator according to claim 4, characterized in that: An air distribution mesh plate (73) is fixed inside the collection ring (71).

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