Flue gas cooling quench tower

Abstract

The utility model provides a flue gas cooling quench tower which comprises a quench tower main body, a cooling structure is arranged in the quench tower main body, a spraying device is arranged above the cooling structure in the quench tower main body, and a gas inlet pipe is fixedly installed on the outer wall of one side of the quench tower main body. And a first cooling pipe is fixedly mounted below the cooling structure in the quench tower main body. By designing the cooling structure and the spraying device, during use, flue gas is introduced into the first cooling pipe through the gas inlet pipe, the flue gas passing distance can be increased due to the fact that the first cooling pipe is spiral, the cooling time is prolonged, the cooling effect is improved, then the second pump body connected with the first circulating water pipe is started, and the cooling effect is improved. And cooling liquid is pumped into the second cooling pipe, when flue gas penetrates through the air holes, secondary cooling can be achieved, the cooling liquid in the second cooling pipe and the cooling liquid in the quench tower body can form circulation through the second circulating water pipe, and therefore the flue gas cooling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quenching towers, in particular to a flue gas cooling quenching tower. Background Art

[0002] Flue gas is a mixture of gas and smoke, and is the main cause of air pollution in residential areas. The composition of flue gas is very complex, including water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons and nitrogen oxides, etc. The smoke includes fuel ash, coal particles, oil droplets and high-temperature cracking products.

[0003] The application number is 201921384635.0, and it proposes a quenching tower for efficient flue gas cooling: when the current quenching tower cools the flue gas, the flue gas stays in the quenching tower for too short a time, resulting in low efficiency and poor cooling effect; the current quenching tower is not equipped with a temperature monitoring device, so the flue gas temperature is not lowered to the emission standard before being discharged to the outside, causing pollution to the atmosphere, thereby reducing the practicality of the quenching tower.

[0004] However, when the above device is in use, since the flue gas from the air inlet pipe directly enters the condensate water, the flue gas exists in the condensate water for too short a time and the cooling effect is not obvious. In addition, since the condensing medium in the condenser tube cannot be replaced during use, after a period of use, the temperature of the condensing medium rises and the cooling effect cannot be achieved.

[0005] Therefore, in response to the above problems, we propose a flue gas cooling quenching tower. Utility Model Content

[0006] The utility model aims to provide a flue gas cooling quenching tower to solve the problems raised by the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flue gas cooling quenching tower, comprising a quenching tower body, a cooling structure is arranged inside the quenching tower body, a spray device is arranged inside the quenching tower body above the cooling structure, an air inlet pipe is fixedly installed on the outer wall of one side of the quenching tower body, a first cooling pipe is fixedly installed inside the quenching tower body below the cooling structure, the air inlet end of the first cooling pipe is connected to the air inlet pipe, a tower cover is fixedly installed on the top of the quenching tower body, and an air outlet pipe is fixedly installed inside the tower cover.

[0008] As a further description of the utility model: the cooling structure includes a second cooling pipe fixedly installed inside the quenching tower body, the second cooling pipe is hollow, and a plurality of air holes penetrating up and down are opened inside the second cooling pipe, and the first circulating water pipe and the second circulating water pipe are distributed above and below the side walls of the second cooling pipe, and the first circulating water pipe and the second circulating water pipe are connected to the quenching tower body at one end away from the second cooling pipe, and a second pump body is also installed on the first circulating water pipe.

[0009] As a further description of the utility model: the spray device includes a first pump body fixedly installed on the side wall of the quenching tower body, a suction pipe is fixedly installed on the output end of the first pump body, and the end of the suction pipe away from the first pump body is connected to the bottom end of the quenching tower body.

[0010] As a further description of the utility model: three connecting pipes distributed front and back are fixedly installed at the output end of the first pump body, and a plurality of atomizing nozzles distributed equidistantly left and right are fixedly installed at the bottom of the connecting pipe.

[0011] As a further description of the utility model: an air return pipe is fixedly installed between the air outlet pipe and the air inlet pipe, an air pump and a solenoid valve are installed on the air return pipe, and a temperature sensor is fixedly installed on the inner wall of the tower cover.

[0012] As a further description of the utility model: a fixed sleeve of the outer wall at the bottom end of the quenching tower body is provided with a fixed ring, four groups of legs are fixedly installed at the bottom of the fixed ring, and a liquid outlet pipe is fixedly installed at the bottom of the quenching tower body.

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

[0014] The utility model designs a cooling structure and a spray device on a flue gas cooling quenching tower. When in use, the flue gas is passed into the interior of a first cooling tube through an air inlet pipe. Since the first cooling tube is spiral, the distance the flue gas passes through can be increased, thereby extending the cooling time and effect. Afterwards, a second pump body connected to the first circulating water pipe is started to draw cooling liquid into the interior of the second cooling tube. When the flue gas passes through the air holes, it can be cooled for a second time, and the cooling liquid in the second cooling tube can circulate with the cooling liquid in the interior of the quenching tower body through the second circulating water pipe, thereby improving the flue gas cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the main body of the quench tower of the utility model;

[0017] Figure 3 This is a schematic diagram of the cooling structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the spray device of the utility model.

[0019] In the figure: 1. quenching tower body; 2. cooling structure; 201. second cooling pipe; 202. air hole; 203. first circulating water pipe; 204. second circulating water pipe; 3. spray device; 301. first pump body; 302. liquid suction pipe; 303. connecting pipe; 304. atomizing nozzle; 4. air inlet pipe; 5. first cooling pipe; 6. tower cover; 7. air outlet pipe; 8. air return pipe; 9. liquid outlet pipe; 10. fixing ring; 11. support leg. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: a flue gas cooling quenching tower, comprising a quenching tower body 1, a cooling structure 2 is arranged inside the quenching tower body 1, a spray device 3 is arranged above the cooling structure 2 inside the quenching tower body 1, an air inlet pipe 4 is fixedly installed on the outer wall of one side of the quenching tower body 1, a first cooling pipe 5 is fixedly installed inside the quenching tower body 1 below the cooling structure 2, the air inlet end of the first cooling pipe 5 is connected with the air inlet pipe 4, a tower cover 6 is fixedly installed on the top of the quenching tower body 1, an air outlet pipe 7 is fixedly installed inside the tower cover 6, and the bottom of the air outlet pipe 7 can be connected to a double-way pipe and a water pump to discharge the overheated coolant inside the quenching tower body 1 through the double-way pipe water pump, and transport new coolant to the inside of the quenching tower body 1.

[0022] In this embodiment: the cooling structure 2 includes a second cooling pipe 201 fixedly installed inside the quenching tower body 1, the second cooling pipe 201 is hollow, and a plurality of air holes 202 are opened inside the second cooling pipe 201, and the first circulating water pipe 203 and the second circulating water pipe 204 are distributed on the upper and lower side walls of the second cooling pipe 201, and the first circulating water pipe 203 and the second circulating water pipe 204 are connected to the quenching tower body 1 at one end away from the second cooling pipe 201, and a second pump body is also installed on the first circulating water pipe 203.

[0023] During specific use: start the second pump body connected to the first circulating water pipe 203 to draw the coolant into the second cooling pipe 201. When the flue gas passes through the air holes 202, it will be cooled for the second time, and the coolant inside the second cooling pipe 201 can form a circulation with the coolant inside the quenching tower body 1 through the second circulating water pipe 204.

[0024] In this embodiment: the spray device 3 includes a first pump body 301 fixedly installed on the side wall of the quenching tower body 1, and a suction pipe 302 is fixedly installed at the output end of the first pump body 301, and the end of the suction pipe 302 away from the first pump body 301 is connected to the bottom end of the quenching tower body 1.

[0025] When used specifically, after the first pump body 301 is started, the coolant inside the quenching tower body 1 can be transported to the atomizing nozzle 304 through the liquid suction pipe 302 .

[0026] In this embodiment, three connecting pipes 303 distributed front to back are fixedly installed at the output end of the first pump body 301 , and a plurality of atomizing nozzles 304 distributed equidistantly left to right are fixedly installed at the bottom of the connecting pipe 303 .

[0027] When used specifically, the connecting pipe 303 and the atomizing nozzle 304 can spray the coolant delivered by the first pump body 301 in the form of atomization to perform a third cooling on the flue gas.

[0028] In this embodiment: a return air pipe 8 is fixedly installed between the air outlet pipe 7 and the air inlet pipe 4 , an air pump and a solenoid valve are installed on the return air pipe 8 , and a temperature sensor is fixedly installed on the inner wall of the tower cover 6 .

[0029] During specific use: the temperature sensor is connected to an external controller. When the temperature sensor detects that the temperature of the exhaust flue gas does not meet the standard, the solenoid valve and the air pump on the return air pipe 8 can be started by the controller to transport the flue gas through the return air pipe 8 to the inside of the intake pipe 4 again, thereby achieving cyclic cooling until the flue gas exhaust temperature is reached.

[0030] In this embodiment, a fixing ring 10 is fixedly mounted on the outer wall of the bottom end of the quenching tower body 1 , four groups of legs 11 are fixedly mounted on the bottom of the fixing ring 10 , and a liquid outlet pipe 9 is fixedly mounted on the bottom of the quenching tower body 1 .

[0031] During specific use: the fixing ring 10 and the supporting legs 11 can support and fix the quenching tower body 1 and its components.

[0032] Working principle: When in use, the flue gas is passed into the first cooling tube 5 through the air inlet pipe 4. Since there is coolant inside the quenching tower body 1, the flue gas will be initially cooled when passing through the first cooling tube 5, and since the first cooling tube 5 is spiral, the distance the flue gas passes can be increased, thereby extending the cooling time and effect. Then, the second pump body connected to the first circulating water pipe 203 is started to draw the coolant into the second cooling tube 201. When the flue gas passes through the air hole 202, it will be cooled for the second time, and the coolant inside the second cooling tube 201 can form a cycle with the coolant inside the quenching tower body 1 through the second circulating water pipe 204. When the flue gas passes through the second cooling tube 201, the first pump body 301 can be started to transport the coolant to the atomizing nozzle 304 through the suction pipe 302, and the flue gas is cooled three times, thereby improving the flue gas cooling effect.

[0033] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flue gas cooling quenching tower, comprising a quenching tower body (1), characterized in that: A cooling structure (2) is provided inside the quenching tower body (1); a spray device (3) is provided inside the quenching tower body (1) above the cooling structure (2); an air inlet pipe (4) is fixedly installed on an outer wall of one side of the quenching tower body (1); a first cooling pipe (5) is fixedly installed inside the quenching tower body (1) below the cooling structure (2); an air inlet end of the first cooling pipe (5) is connected to the air inlet pipe (4); a tower cover (6) is fixedly installed on the top of the quenching tower body (1); an air outlet pipe (7) is fixedly installed inside the tower cover (6).

2. A flue gas cooling quenching tower according to claim 1, characterized in that: The cooling structure (2) comprises a second cooling pipe (201) fixedly installed inside the quenching tower body (1); the second cooling pipe (201) is hollow; a plurality of air holes (202) penetrating vertically are provided inside the second cooling pipe (201); a first circulating water pipe (203) and a second circulating water pipe (204) are distributed vertically on the side wall of the second cooling pipe (201); one end of the first circulating water pipe (203) and the second circulating water pipe (204) away from the second cooling pipe (201) is connected to the quenching tower body (1); and a second pump body is also installed on the first circulating water pipe (203).

3. A flue gas cooling quenching tower according to claim 1, characterized in that: The spray device (3) comprises a first pump body (301) fixedly mounted on the side wall of the quenching tower body (1); a liquid suction pipe (302) is fixedly mounted on the output end of the first pump body (301); and an end of the liquid suction pipe (302) away from the first pump body (301) is connected to the bottom end of the quenching tower body (1).

4. A flue gas cooling quenching tower according to claim 3, characterized in that: Three connecting pipes (303) distributed front to back are fixedly mounted on the output end of the first pump body (301), and a plurality of atomizing nozzles (304) distributed equidistantly left to right are fixedly mounted on the bottom of the connecting pipe (303).

5. A flue gas cooling quenching tower according to claim 1, characterized in that: An air return pipe (8) is fixedly installed between the air outlet pipe (7) and the air inlet pipe (4), an air pump and a solenoid valve are installed on the air return pipe (8), and a temperature sensor is fixedly installed on the inner wall of the tower cover (6).

6. A flue gas cooling quenching tower according to claim 1, characterized in that: A fixing ring (10) is fixedly mounted on the outer wall of the bottom end of the quenching tower body (1), four groups of legs (11) are fixedly mounted on the bottom of the fixing ring (10), and a liquid outlet pipe (9) is fixedly mounted on the bottom of the quenching tower body (1).

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