Boiler flue gas purification device

Abstract

The utility model relates to the technical field of flue gas purification, in particular to a boiler flue gas purification device which comprises a purification tower, a spraying structure is rotationally installed in the purification tower, a purification structure is connected to the top of the purification tower in a screwed and sleeved mode, the spraying structure comprises a rotating ring, and the outer edges of the upper side and the lower side of the rotating ring are fixedly connected with inner rings of bearings. And turbine blades are arranged on the side surface of the rotating ring, water inlets are formed in the roots of the turbine blades and communicate with the flow equalizing grooves, the flow equalizing grooves communicate with the spraying pipe, and spraying openings are fixedly formed in the bottom side of the spraying pipe. According to the utility model, in the spraying process, the rotating ring is in a rotating state all the time, a static water curtain sprayed from a fixed spraying opening in a traditional spraying structure is optimized into dynamic spraying through a water curtain sprayed in a rotating manner, spraying dead angles are reduced, and comburent particles existing in smoke passing through the spraying structure due to insufficient combustion are reduced; and a combustible gas partially soluble in water.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas purification, in particular to a boiler flue gas purification device. Background Art

[0002] Industrial boilers are widely used and consume a lot of coal. The pollution caused by the smoke discharged into the atmosphere after combustion is quite serious. The harmful sulfur dioxide gas produced after fuel combustion is discharged into the atmosphere and oxidized into sulfur trioxide by combining with oxygen in the air. Then it combines with water vapor in the air to form sulfuric acid smoke or combines with flue gas to form sulfide, which will pollute the surrounding environment. The discharged flue gas needs to be purified by purification equipment.

[0003] Most of the current flue gas purification equipment uses a spraying method to purify the smoke particle components produced by incomplete combustion of fuel. The spray heads of the current spraying structure are mostly fixedly installed and their positions cannot be changed, which results in the spraying range of the water curtain being fixed, resulting in the existence of spraying dead corners, affecting the spraying effect. Utility Model Content

[0004] The purpose of the utility model is to provide a boiler flue gas purification device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A boiler flue gas purification device comprises a purification tower, a spray structure is rotatably installed inside the purification tower, a purification structure is screwed and sleeved on the top of the purification tower, the spray structure comprises a swivel, the upper and lower outer edges of the swivel are fixedly connected to the inner ring of the bearing, the side surface of the swivel is provided with turbine blades, the root of the turbine blade is provided with a water inlet, the water inlet is communicated with an equal flow groove, the equal flow groove is communicated with a spray pipe, and a spray port is fixedly installed on the bottom side of the spray pipe.

[0007] Furthermore, the purification tower comprises a tower body, a spiral interface is fixedly installed at the opening of the upper end of the tower body, a flue gas interception tank is fixedly sleeved at the lower end of the tower body, a water trough is opened in the waist part of the flue gas interception tank, and one side of the water trough is connected to a water supply pipe.

[0008] Furthermore, a tower bottom is fixedly installed at the lower end of the flue gas interception tank, a drainage pipe is fixedly connected to the bottom side of the tower bottom, a smoke inlet pipe is fixedly connected to the side surface of the tower bottom, and a water shielding edge is fixedly installed at the opening edge of the smoke inlet pipe located inside the tower bottom.

[0009] Furthermore, a spray pipe is fixedly installed on the inner side of the rotating ring, the number of the spray pipes is several, and one end of the spray pipe is fixedly connected to the side surface of the connecting seat.

[0010] Furthermore, the purification structure includes a rotary cover, the upper side of the rotary cover is fixedly connected to an exhaust port, the lower edge of the side surface of the rotary cover is fixedly sleeved with a threaded ring, the inner wall of the rotary cover is fixedly sleeved with a base ring, the bottom side of the base ring is fixedly installed with a hanging rod, the lower end of the hanging rod is fixedly connected to a stuffing frame, and the number of the stuffing frames is several.

[0011] Furthermore, the rotating ring is rotatably mounted on the inner wall of the thin waist of the smoke interception tank through a bearing, and the turbine blades extend into the water trough.

[0012] Furthermore, the rotary cover is screwed and sleeved with the spiral interface through a threaded ring, and the suspension rod and the filling frame are slidably sleeved inside the tower body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Use the water flow to push the turbine blades, so that the swivel rotates, and under the guidance of the turbine blades, it enters the water inlet. The water inlet is designed as a V-shaped structure, which is convenient for water to enter the flow trough from the large mouth. At the same time, the small mouth can also reduce the flow rate of water entering the flow trough, so as to avoid the water flow providing insufficient thrust to the turbine blades and unable to rotate the swivel. After the water phase enters the flow trough, it flows into the spray pipe and finally sprays out through the spray port to spray and purify the flue gas. During the spraying process, the swivel is always in a rotating state, so that the spraying water curtain is also in a rotating state. The static water curtain sprayed from the fixed spray port in the traditional spray structure is optimized to a dynamic spray, reducing the spray dead angle, reducing the combustion particles in the flue gas passing through the spray structure due to incomplete combustion, and some flammable gases soluble in water. The ends of each spray pipe are connected to each other through the connecting seat to support each other and ensure the stability of each spray pipe during rotating spraying.

[0015] 2. Each packing frame is suspended and installed at the bottom of the screw cap through the suspension rod and the base ring, and then the screw cap and the upper end of the tower body are designed to be screwed together, which is convenient for disassembly and assembly, and for replacing and replenishing the purification packing in the packing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the purification tower in the utility model;

[0018] Figure 3 It is a cross-sectional view of the spray structure in the utility model;

[0019] Figure 4 It is a cross-sectional view of the purification structure in the utility model;

[0020] Figure 5 This utility model Figure 2 Enlarged view of point A in the middle.

[0021] In the figure: 1. purification tower; 101. tower body; 102. spiral interface; 103. flue gas intercepting tank; 104. water trough; 105. water supply pipe; 106. tower bottom; 107. drain pipe; 108. smoke inlet pipe; 109. water shield; 2. spray structure; 201. swivel; 202. bearing; 203. turbine blade; 204. water inlet; 205. flow balancing trough; 206. spray pipe; 207. connecting seat; 208. spray port; 3. purification structure; 301. screw cover; 302. exhaust port; 303. threaded ring; 304. base ring; 305. suspension rod; 306. packing frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5 In an embodiment of the utility model, a boiler flue gas purification device includes a purification tower 1, a spray structure 2 is rotatably installed inside the purification tower 1, a purification structure 3 is screwed and sleeved on the top of the purification tower 1, and the spray structure 2 includes a swivel 201, and the outer edges of the upper and lower sides of the swivel 201 are fixedly connected to the inner ring of the bearing 202, a turbine blade 203 is opened on the side surface of the swivel 201, and a water inlet 204 is opened at the root of the turbine blade 203, the water inlet 204 is communicated with the equal flow groove 205, the equal flow groove 205 is communicated with the spray pipe 206, and a spray port 208 is fixedly installed on the bottom side of the spray pipe 206; a spray pipe 206 is fixedly installed on the inner side of the swivel 201, and the number of the spray pipes 206 is a plurality of, and one end of the spray pipe 206 is fixedly connected to the side surface of the connecting seat 207.

[0024] Specifically, the water flow is used to push the turbine blades 203, so that the rotating ring 201 rotates, and under the guidance of the turbine blades 203, the water enters the water inlet 204, and the water inlet 204 is designed as a V-shaped structure, which is convenient for the water flow to enter the flow balancing groove 205 from the large mouth, and the small mouth can also reduce the flow rate of the water flow entering the flow balancing groove 205, so as to avoid that the water flow provides insufficient thrust to the turbine blades 203 and cannot rotate the rotating ring 201. After the water phase enters the flow balancing groove 205, it flows into the spray pipe 206 and is finally sprayed out through the spray port 208 to treat the flue gas. Spray purification work is carried out. During the spraying process, the rotating ring 201 is always in a rotating state, so that the spraying water curtain is also in a rotating state. The static water curtain sprayed from the fixed spray port 208 in the traditional spray structure is optimized to dynamic spraying, reducing the spraying dead angle, reducing the combustion particles in the flue gas passing through the spray structure 2 due to incomplete combustion, and some flammable gases soluble in water. The ends of each spray pipe 206 are connected together through the connecting seat 207 to support each other, thereby ensuring the stability of each spray pipe 206 during rotating spraying.

[0025] Embodiment 1

[0026] like Figure 2-3 As shown in Figure 5, in this embodiment, a flue gas interception tank 103 is fixedly sleeved at the lower end of the tower body 101, a water trough 104 is opened in the narrow waist part of the flue gas interception tank 103, and a water supply pipe 105 is connected to one side of the water trough 104; the swivel 201 is rotatably installed on the inner wall of the narrow waist part of the flue gas interception tank 103 through the bearing 202, and the turbine blades 203 are inserted into the water trough 104.

[0027] In this embodiment, the flue gas intercepting tank 103 is designed as a gourd-shaped structure and has a plurality of inwardly contracted narrow-mouth structures, and the spray structure 2 is rotatably installed at these narrow-mouth structures, so that the smoke can prolong its residence time in the smoke intercepting tank 103 and can be fully sprayed by the spray structure 2, thereby improving the degree of purification of the smoke in the smoke intercepting tank 103. The channel connecting the water trough 104 and the water supply pipe 105 is cut into the water trough 104 at a forty-five degree angle in the horizontal direction, ensuring the impact angle of the water flow on the turbine blades 203, so that the swivel 201 has sufficient rotational power.

[0028] like Figure 2 As shown, in this embodiment, a tower bottom 106 is fixedly installed at the lower end of the flue gas interception tank 103, a drainage pipe 107 is fixedly connected to the bottom side of the tower bottom 106, a smoke inlet pipe 108 is fixedly connected to the side surface of the tower bottom 106, and a water shielding edge 109 is fixedly installed at the opening edge of the smoke inlet pipe 108 located inside the tower bottom 106.

[0029] During specific implementation, the drain pipe 107 is designed to have a curved pipe structure with one end bent upward, imitating a toilet drain pipe. The principle of communicating vessels is used to create a certain water seal structure at the bottom of the tower bottom 106 to seal the drain pipe 107 and prevent smoke from leaking from the drain pipe 107. At the same time, the smoke inlet pipe 108 is designed to be a downwardly inclined pipe structure, and a water shielding edge 109 is designed at the connecting port between the smoke inlet pipe 108 and the tower bottom 106 to prevent the water curtain sprayed by the spray structure 2 from flowing back into the smoke inlet pipe 108.

[0030] Embodiment 2

[0031] On the basis of the first embodiment, in order to supplement the method of purifying some of the harmful gases insoluble in water after the spray structure 2 purifies the harmful components soluble in water, which is not mentioned in the first embodiment.

[0032] like Figure 1 , 4 As shown, in this embodiment, the purification tower 1 includes a tower body 101, and a spiral interface 102 is fixedly installed at the opening of the upper end of the tower body 101; the purification structure 3 includes a rotary cover 301, and the upper side of the rotary cover 301 is fixedly connected with an exhaust port 302, and the lower edge of the side surface of the rotary cover 301 is fixedly sleeved with a threaded ring 303, and the inner wall of the rotary cover 301 is fixedly sleeved with a base ring 304, and the bottom side of the base ring 304 is fixedly installed with a suspension rod 305, and the lower end of the suspension rod 305 is fixedly connected with a packing frame 306, and the number of packing frames 306 is several; the rotary cover 301 is screwed and sleeved with the spiral interface 102 through the threaded ring 303, and the suspension rod 305 and the packing frame 306 are slidably sleeved inside the tower body 101.

[0033] In specific implementation, each filling frame 306 is suspended and installed at the bottom of the rotary cover 301 through the suspension rod 305 and the base ring 304, and then the rotary cover 301 and the upper end of the tower body 101 are designed to be screwed together, which is convenient for disassembly and assembly, and convenient for replacing and replenishing the purification fillers in the filling frame 306.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A boiler flue gas purification device, comprising a purification tower, characterized in that: A spray structure is rotatably installed inside the purification tower, and a purification structure is screwed and sleeved on the top of the purification tower. The spray structure includes a swivel, and the upper and lower outer edges of the swivel are fixedly connected to the inner ring of the bearing. Turbine blades are provided on the side surface of the swivel, and a water inlet is provided at the root of the turbine blade. The water inlet is communicated with a flow equalizing groove, and the flow equalizing groove is communicated with a spray pipe, and a spray port is fixedly installed on the bottom side of the spray pipe.

2. A boiler flue gas purification device according to claim 1, characterized in that: The purification tower comprises a tower body, a spiral interface is fixedly installed at the opening of the upper end of the tower body, a flue gas interception tank is fixedly sleeved at the lower end of the tower body, a water trough is opened in the waist part of the flue gas interception tank, and one side of the water trough is connected to a water supply pipe.

3. A boiler flue gas purification device according to claim 2, characterized in that: A tower bottom is fixedly installed at the lower end of the flue gas interception tank, a drainage pipe is fixedly connected to the bottom side of the tower bottom, a smoke inlet pipe is fixedly connected to the side surface of the tower bottom, and a water shielding edge is fixedly installed at the opening edge of the smoke inlet pipe located inside the tower bottom.

4. A boiler flue gas purification device according to claim 3, characterized in that: A spray pipe is fixedly installed on the inner side of the rotating ring. The number of the spray pipes is several, and one end of the spray pipe is fixedly connected to the side surface of the connecting seat.

5. A boiler flue gas purification device according to claim 4, characterized in that: The purification structure includes a rotary cover, the upper side of the rotary cover is fixedly connected to an exhaust port, the lower edge of the side surface of the rotary cover is fixedly sleeved with a threaded ring, the inner wall of the rotary cover is fixedly sleeved with a base ring, the bottom side of the base ring is fixedly installed with a hanging rod, the lower end of the hanging rod is fixedly connected to a stuffing frame, and the number of the stuffing frames is several.

6. A boiler flue gas purification device according to claim 5, characterized in that: The rotating ring is rotatably mounted on the inner wall of the thin waist of the smoke interception tank through a bearing, and the turbine blades are inserted into the water trough.

7. A boiler flue gas purification device according to claim 6, characterized in that: The screw cap is screwed and sleeved with the spiral interface through a threaded ring, and the suspension rod and the filling frame are slidably sleeved inside the tower body.

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