Injection type ion deodorization system for malodorous waste gas treatment of storage tank

Abstract

The utility model discloses an injection type ion deodorization system for malodorous waste gas treatment of a storage tank. The injection type ion deodorization system comprises a fresh air filter unit, an air supply filter unit, an ion generation and mixed reaction unit and a chemical adsorption unit, the fresh air filter unit comprises a fresh air filter unit and a fresh air fan which are connected; the air supply filter unit comprises an air supply fan and an air supply filter unit; the fresh air fan feeds outdoor fresh air into the ion generation and mixing reaction unit through the fresh air filtering unit. The system combines the characteristics of malodorous waste gas of the regulation and storage tank, and adopts corresponding waste gas treatment process technologies according to different conditions and treatment requirements of waste gas with different concentrations, so that the comprehensive operation cost of the waste gas treatment system is reduced and the energy consumption is saved while the treatment target is ensured to be realized; compared with traditional ion deodorization equipment, the decomposition efficiency can be improved to 80-90%, and the total treatment efficiency of the whole set of system reaches 95% or above through subsequent treatment of the chemical adsorption unit.

Description

Technical Field

[0001] The utility model relates to the technical field of malodorous waste gas treatment in environmental protection technology, in particular to an injection type ion deodorization system for treating malodorous waste gas in a regulating pool. Background Art

[0002] In the prior art, in the field of municipal malodorous waste gas treatment, processes such as ion method, biological filter, physical adsorption and chemical washing are usually used for treatment.

[0003] Traditional ion deodorization equipment produces a large number of positive and negative oxygen ions under the action of high-voltage electric fields. It has strong oxidizing properties and can oxidize and decompose ammonia, hydrogen sulfide, methyl mercaptan, ethers, amines and other polluting odor factors in a short period of time, open the chemical bonds of organic volatile gases, and ultimately generate stable and harmless small molecules such as carbon dioxide and water.

[0004] However, the combination of oxygen ions and odor molecules still requires a certain mixing reaction time, which cannot be met by traditional ion deodorization equipment due to the equipment's land occupation and its own structure. As a result, the treatment efficiency of traditional ion deodorization equipment is low, and it cannot achieve the expected treatment effect for low-concentration, high-volume odorous waste gas generated by similar storage tanks. At the same time, the national and local requirements for odor emissions are gradually increasing, and the current emission situation is difficult to meet the ever-increasing emission standards.

[0005] Therefore, in order to solve the above problems, it is necessary to develop an injection ion deodorization system for the treatment of malodorous waste gas in the regulating pool, which has a reasonable structure and can effectively improve work efficiency and work quality. Utility Model Content

[0006] The purpose of the utility model is to provide an injection type ion deodorization system for treating malodorous waste gas from a storage tank in view of the shortcomings of the prior art; the technical scheme is as follows:

[0007] An injection type ion deodorization system for treating malodorous waste gas from a storage tank, comprising a fresh air filter unit, an air supply filter unit, an ion generation and mixing reaction unit, and a chemical adsorption unit;

[0008] The fresh air filter unit includes a connected fresh air filter unit and a fresh air fan; the supply air filter unit includes a supply air fan and a supply air filter unit;

[0009] The fresh air fan sends the outdoor fresh air to the ion generation and mixing reaction unit through the fresh air filter unit; the fresh air fan sends the odorous waste gas in the regulating storage tank to the air supply filter unit for filtration and then sends it to the ion generation and mixing reaction unit;

[0010] The ion generation and mixing reaction unit is provided with an ion generation section on the left and an air mixing section on the right. The outdoor fresh air sent by the fresh air fan and the odorous waste gas sent by the air supply fan enter the ion generation section on the left, and then pass through the air mixing section to be sent to the chemical adsorption unit;

[0011] The chemical adsorption unit is provided with a chemical adsorption filler, and the mixed gas is treated by the chemical adsorption filler and then discharged into the atmosphere.

[0012] Furthermore, the ion generation section in the ion generation and mixing reaction unit is provided with an ion deodorization device.

[0013] Furthermore, the air mixing section in the ion generation and mixing reaction unit is equipped with a reversely arranged partition, so that the mixed gas flows in an S-shaped direction in the air mixing section.

[0014] Furthermore, the chemical adsorption filler in the chemical adsorption unit is provided with four layers evenly spaced up and down, an air duct is formed between adjacent chemical adsorption fillers, and the left ends of the two middle layers of chemical adsorption fillers are sealed by a sealing plate, and the right ends of the two upper layers of chemical adsorption fillers and the right ends of the two lower layers of chemical adsorption fillers are also sealed by a sealing plate accordingly.

[0015] Furthermore, the size of each layer of chemical adsorption filler in the chemical adsorption unit is set to: 5m*2.4m*0.4m; the filling volume of each layer of chemical adsorption filler is 4.8m 3 ; Four floors totaling 19.2m 3 .

[0016] Furthermore, the power of the air supply fan is set to 22KW; the power of the fresh air fan is set to 15KW.

[0017] Beneficial effects: The utility model has the following beneficial effects: the system combines the characteristics of the malodorous waste gas from the regulating pool, and adopts the corresponding waste gas treatment process technology according to the different conditions and treatment needs of the waste gas of different concentrations. While ensuring the realization of the treatment goals, it reduces the comprehensive operating costs of the waste gas treatment system and saves energy consumption, so that the impact of the waste gas emissions after treatment is reduced to an environmentally acceptable level, meeting the country's overall requirements for environmental protection; compared with traditional ion deodorization equipment, the decomposition efficiency can be increased to 80-90%, and then treated by a chemical adsorption unit, so that the total treatment efficiency of the whole system reaches more than 95%. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the structural diagram of the utility model;

[0019] Figure 2 This is a structural diagram of the ion generation and mixing reaction unit of the utility model;

[0020] Figure 3 This is a structural diagram of the chemical adsorption unit of the utility model;

[0021] Figure 4 for Figure 3 Middle AA section view. DETAILED DESCRIPTION

[0022] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0023] like Figure 1 As shown, an injection type ion deodorization system for treating malodorous waste gas from a storage tank comprises a fresh air filter unit, a supply air filter unit, an ion generation and mixing reaction unit 1 and a chemical adsorption unit 2;

[0024] The fresh air filter unit includes a fresh air filter unit 3 and a fresh air fan 4 connected to each other; the supply air filter unit includes a supply air fan 5 and a supply air filter unit 6;

[0025] The fresh air blower 4 sends the outdoor fresh air to the ion generation and mixing reaction unit 1 through the fresh air filter unit 3; the fresh air blower 4 sends the odorous waste gas in the storage tank to the air supply filter unit 6 for filtration and then sends it to the ion generation and mixing reaction unit 1;

[0026] like Figure 2 As shown, the ion generation and mixing reaction unit 1 is provided with an ion generation section 11 on the left and an air mixing section 12 on the right. The outdoor fresh air sent by the fresh air fan 4 and the odorous waste gas sent by the air supply fan 5 enter the ion generation section 11 on the left, and then pass through the air mixing section 12 to be sent to the chemical adsorption unit 2;

[0027] A chemical adsorption filler 21 is provided in the chemical adsorption unit 2 , and the mixed gas is treated by the chemical adsorption filler 21 and then discharged into the atmosphere.

[0028] The ion generating section 11 in the ion generating and mixing reaction unit 1 is provided with an ion deodorizing device 101 .

[0029] The air mixing section 12 in the ion generation and mixing reaction unit 1 is installed with a reversely arranged partition 102 so that the mixed gas flows in an S-shaped direction in the air mixing section 12 .

[0030] like Figure 3 and Figure 4As shown, the chemical adsorption filler 21 in the chemical adsorption unit 2 is provided with four layers evenly spaced from top to bottom, an air duct 22 is formed between adjacent chemical adsorption fillers 21, and the left ends of the middle two layers of chemical adsorption fillers 21 are sealed by a sealing plate 23, and the right ends of the upper two layers of chemical adsorption fillers 21 and the right ends of the lower two layers of chemical adsorption fillers 21 are also sealed by the sealing plate 23 accordingly.

[0031] The size of each layer of chemical adsorption filler 21 in the chemical adsorption unit 2 is set to: 5m*2.4m*0.4m; the filling amount of each layer of chemical adsorption filler 21 is 4.8m 3 ; Four floors totaling 19.2m 3 ; The power of the air supply fan 5 is set to 22KW; the power of the fresh air fan 4 is set to 15KW.

[0032] The overall working process of this system is as follows: First, the malodorous waste gas is sucked by the air supply fan through the collection system to the front air inlet of the ion generation and mixing reaction device. At the same time, the fresh air of the same volume is blown into the left air inlet by the fresh air fan. This part of the mixed gas produces positive and negative oxygen ions under the action of the high-voltage electric field of the ion deodorization equipment in the ion generation and mixing reaction device. The waste gas and the fresh air are then mixed through a series of diversions to fully react and decompose. Finally, the remaining small amount of undecomposed odor molecules are further adsorbed and decomposed by the chemical adsorption filler in the chemical adsorption unit, and are discharged into the atmosphere after meeting the emission requirements.

[0033] The whole system design of this utility model can process odorous waste gas with an air volume of 32000m 3 / h, the power of the supporting air supply fan is 22kW; the corresponding fresh air volume is also 32000m 3 / h, and the supporting fan power is selected to be 15kW; the air volumes of the two are synchronously controlled by the frequency converter to be equal, and the odor molecules are effectively decomposed after the two are guided and mixed through the mixing reaction device.

[0034] Among them, the design size of the fresh air filtration unit is L*W*H=1820*1400*2430mm, equipped with 9 F7-level medium-efficiency filters; the design size of the air supply filtration unit is L*W*H=2340*1900*1920mm, equipped with 9 F7-level medium-efficiency filters; the design size of the ion generation and mixed reaction unit is L*W*H=4200*2000*2500mm, equipped with 16 sets of high-energy ion generation modules (0.25kW each), totaling 4kW; the design size of the chemical adsorption unit is L*W*H=6400*2900*2700mm, and the chemical adsorption unit is designed with four layers of chemical adsorption fillers, and adopts a four-layer series filling method. The filling volume of each layer is 5m*2.4m*0.4m, and the total volume is 4.8m 3 , four floors totaling 19.2m 3, while ensuring the flow area, the exhaust gas residence time is increased to 0.8S; the filler is loaded from top to bottom, which is convenient for later operation, maintenance and replacement.

[0035] The above-mentioned specific implementation mode is only a preferred embodiment of the present invention and is not intended to limit the implementation of the present invention and the scope of the claims. All equivalent changes and modifications made according to the content of the patent protection scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. An injection type ion deodorization system for treating malodorous waste gas from a storage tank, characterized in that: It comprises a fresh air filter unit, a supply air filter unit, an ion generation and mixing reaction unit (1) and a chemical adsorption unit (2); The fresh air filter unit comprises a connected fresh air filter unit (3) and a fresh air fan (4); the supply air filter unit comprises a supply air fan (5) and a supply air filter unit (6); The fresh air blower (4) sends outdoor fresh air to the ion generation and mixing reaction unit (1) through the fresh air filter unit (3); the fresh air blower (4) sends the odorous waste gas in the storage tank to the air supply filter unit (6) for filtration and then sends it to the ion generation and mixing reaction unit (1); The ion generation and mixing reaction unit (1) is provided with an ion generation section (11) on the left and an air mixing section (12) on the right. The outdoor fresh air sent in by the fresh air fan (4) and the malodorous waste gas sent in by the air supply fan (5) enter the ion generation section (11) on the left, and then pass through the air mixing section (12) and are sent to the chemical adsorption unit (2); The chemical adsorption unit (2) is provided with a chemical adsorption filler (21), and the mixed gas is treated by the chemical adsorption filler (21) and then discharged into the atmosphere.

2. The injection type ion deodorization system for treating malodorous waste gas from a storage tank according to claim 1 is characterized in that: The ion generating section (11) in the ion generating and mixing reaction unit (1) is provided with an ion deodorizing device (101).

3. The injection type ion deodorization system for treating malodorous waste gas from a storage tank according to claim 1 is characterized in that: The air mixing section (12) in the ion generation and mixing reaction unit (1) is provided with a reversely arranged partition (102), so that the mixed gas flows in an S-shaped direction in the air mixing section (12).

4. The injection type ion deodorization system for treating malodorous waste gas from a storage tank according to claim 1 is characterized in that: The chemical adsorption filler (21) in the chemical adsorption unit (2) is provided with four layers evenly spaced from top to bottom, an air duct (22) is formed between adjacent chemical adsorption fillers (21), and the left ends of the two middle layers of chemical adsorption fillers (21) are sealed by a sealing plate (23), and the right ends of the two upper layers of chemical adsorption fillers (21) and the right ends of the two lower layers of chemical adsorption fillers (21) are also correspondingly sealed by a sealing plate (23).

5. The injection type ion deodorization system for treating malodorous waste gas from a storage tank according to claim 4 is characterized in that: The size of each layer of chemical adsorption filler (21) in the chemical adsorption unit (2) is set to: 5m*2.4m*0.4m; the filling amount of each layer of chemical adsorption filler (21) is 4.8m 3 ; Four floors totaling 19.2m 3 .

6. The injection type ion deodorization system for treating malodorous waste gas from a storage tank according to claim 1 is characterized in that: The power of the air supply fan (5) is set to 22KW; the power of the fresh air fan (4) is set to 15KW.

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