Lower box body assembly of waste gas treatment equipment

Abstract

The utility model discloses a lower box body assembly of waste gas treatment equipment, which comprises a lower box body, the lower box body is provided with an anti-condensation assembly, the anti-condensation assembly comprises a gas channel and a gas guide pipe, the gas guide pipe is annularly provided with a gas guide hole, and the anti-condensation assembly is used for enhancing gas flow and raising temperature. According to the utility model, the lower box body is designed to be funnel-shaped, and the gas channel is additionally arranged on the outer side of the lower box body, so that treated waste gas is introduced into the gas channel and then discharged out of the furnace body; meanwhile, a gas guide pipe is additionally arranged in a dead zone where condensation is prone to being generated at the bottom of the lower box body, gas flowing is enhanced, local temperature is raised, the gas inlet temperature does not need to be too high, the number of front-end heat exchangers is reduced, and equipment corrosion caused by condensation and dew condensation of the lower box body is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment equipment, in particular to a lower box assembly of waste gas treatment equipment. Background Art

[0002] Volatile organic compounds (VOCs) refer to a class of organic compounds that are volatile at room temperature. Due to the low concentration of volatile organic compounds (VOCs) and large air volume, traditional direct-fired incinerators need to consume a lot of energy when treating these waste gases, so their energy efficiency is low. In order to solve this problem, thermal storage technology has been introduced into incinerators, especially in the glass industry. The RTO equipment is a three-bed structure design with the characteristics of high removal efficiency, stable operation and low energy consumption. The waste gas containing volatile organic compounds (VOCs) enters the thermal storage bed of the RTO through the switching of the valve. The waste gas is gradually heated by the thermal storage ceramics and enters the combustion chamber. VOCs are oxidized at high temperature in the combustion chamber and release heat. The hot air formed exchanges heat with the storage ceramics when passing through another thermal storage bed, accumulating heat to reduce the consumption of auxiliary fuel.

[0003] When RTO equipment is used in the pesticide and pharmaceutical fields, due to the low inlet temperature, condensation is likely to occur in the dead zone of the RTO lower box, resulting in liquid accumulation. Since the condensed liquid is highly acidic and corrosive, it will cause corrosion and perforation of the lower box, leading to equipment damage. Utility Model Content

[0004] The purpose of the present invention is to solve the above problems and provide a lower box assembly for exhaust gas treatment equipment.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions, including:

[0006] The lower box body is provided with an anti-condensation component, the anti-condensation component includes an airway and an air guide pipe, the air guide pipe ring is provided with air guide holes, and the anti-condensation component is used to enhance gas flow and raise temperature.

[0007] As a further description of the above technical solution, the lower box body includes a drainage portion and a communication portion, and the communication portion is connected to the bottom of the drainage portion.

[0008] As a further description of the above technical solution, the cross-section of the drainage portion is trapezoidal, and the diameter of the bottom of the drainage portion is 15%-25% of the diameter of the top.

[0009] As a further description of the above technical solution, the air ducts are arranged on both sides of the lower box body, and the air ducts are used to discharge the treated exhaust gas.

[0010] As a further description of the above technical solution, the air guide tube is arranged at the bottom of the drainage part, and the air guide tube is communicated with the airway.

[0011] As a further description of the above technical solution, the airway tube includes a first conduit and a second conduit, and the second conduit is arranged below the first conduit.

[0012] As a further description of the above technical solution, the first conduit is arranged along the inner edge of the lower box toward the axis of the lower box, and the first conduit is used to conduct heat through the box wall to raise the local temperature.

[0013] As a further description of the above technical solution, the second conduit includes a horizontal portion and a vertical portion, and the second conduit is used to enhance gas flow.

[0014] As a further description of the above technical solution, the diameter of the air guide tube is 40-50 mm, and the diameter of the air guide hole is 5-8 mm.

[0015] As a further description of the above technical solution, the area of ​​the air guide hole is larger than the cross-sectional area of ​​the air guide tube.

[0016] The beneficial effects of the utility model are as follows:

[0017] In the utility model, the lower box is designed to be funnel-shaped, and an air duct is added to the outside of the lower box to introduce the treated exhaust gas into the air duct and then discharge it from the furnace body; at the same time, an air guide pipe is added to the dead zone at the bottom of the lower box where condensation is prone to occur, thereby enhancing the gas flow and raising the local temperature, so that the intake temperature does not need to be too high, reducing the number of front-end heat exchangers and effectively preventing condensation in the lower box from corroding the equipment.

[0018] In order to more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the lower box assembly of the waste gas treatment equipment of the utility model;

[0020] Figure 2 yes Figure 1 A magnified schematic diagram of the AA position in the middle;

[0021] Figure 3 yes Figure 2 Schematic diagram of the structure of the central airway.

[0022] Reference numerals:

[0023] 1. Lower box; 11. Drainage part; 12. Connecting part; 2. Anti-condensation component; 21. Airway; 22. Air guide tube; 221. Air guide hole; 222. First conduit; 223. Second conduit. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0025] like Figure 1-Figure 3 As shown, in one embodiment, a lower box assembly of an exhaust gas treatment device includes: a lower box 1, the lower box 1 is provided with an anti-condensation assembly 2, and the anti-condensation assembly 2 is used to enhance gas flow and raise temperature.

[0026] The lower housing 1 includes a drainage portion 11 and a connecting portion 12, which is connected to the bottom of the drainage portion 11. Specifically, the drainage portion 11 is designed with a funnel-shaped structure, with a trapezoidal cross-section, which effectively facilitates the guidance and discharge of gas. The top diameter of the drainage portion 11 is relatively large, gradually shrinking as it moves downward, with the bottom diameter being 15% to 25% of the top diameter. This reduces fluid retention during discharge and improves flow efficiency.

[0027] Please continue reading Figure 1-Figure 3 In this embodiment, the anti-condensation component 2 includes an air duct 21 and an air guide pipe 22. The air duct 21 is arranged on both sides of the lower box body 1 for discharging the treated exhaust gas; the air guide pipe 22 is arranged at the bottom of the drainage part 11 and is connected to the air duct 21, so as to facilitate the discharge of gas while raising the local temperature through heat transfer through the box wall.

[0028] Furthermore, the air duct 22 includes a first conduit 222 and a second conduit 223, with the second conduit 223 disposed below the first conduit 222. The first conduit 222 is disposed along the inner edge of the lower housing 1 toward the axis of the lower housing 1, and is used to raise the local temperature through heat transfer from the housing wall; the second conduit 223 includes a horizontal portion and a vertical portion, and is used to enhance gas flow.

[0029] Specifically, the air guide pipe 22 is provided with an air guide hole 221. The diameter of the air guide pipe 22 is 40-50 mm, and the diameter of the air guide hole 221 is 5-8 mm. The area of ​​the air guide hole 221 is larger than the cross-sectional area of ​​the air guide pipe 22, which effectively increases the gas flow and ensures that the exhaust gas can be discharged smoothly and unobstructed.

[0030] Working principle: The lower box body 1 is designed to be funnel-shaped, and an air duct 21 is added to the outside of the lower box body 1. The treated exhaust gas is introduced into the air duct 21 and then discharged from the furnace body; at the same time, an air guide pipe 22 is added to the dead zone at the bottom of the lower box body 1 where condensation is prone to occur, thereby enhancing gas flow and raising local temperature.

[0031] Through the above technical solution, the present application makes it possible to avoid the intake air temperature being too high, reduces the number of front-end heat exchangers, and effectively prevents the lower box 1 from condensing and causing corrosion of the equipment.

[0032] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lower box assembly of an exhaust gas treatment device, characterized in that: include: A lower box body (1) is provided with an anti-condensation component (2), the anti-condensation component (2) comprises an air duct (21) and an air guide pipe (22), the air guide pipe (22) is provided with air guide holes (221), and the anti-condensation component (2) is used to enhance gas flow and raise temperature.

2. The lower box assembly of the exhaust gas treatment equipment according to claim 1, characterized in that: The lower box (1) comprises a drainage portion (11) and a communication portion (12), and the communication portion (12) is connected to the bottom of the drainage portion (11).

3. The lower box assembly of the exhaust gas treatment equipment according to claim 2, characterized in that: The cross section of the drainage portion (11) is trapezoidal, and the diameter of the bottom of the drainage portion (11) is 15%-25% of the diameter of the top.

4. The lower box assembly of the exhaust gas treatment equipment according to claim 1, characterized in that: The air duct (21) is arranged on both sides of the lower box (1), and the air duct (21) is used to discharge the treated waste gas.

5. The lower box assembly of the exhaust gas treatment equipment according to claim 1, characterized in that: The air guide tube (22) is arranged at the bottom of the drainage portion (11), and the air guide tube (22) is communicated with the airway (21).

6. The lower box assembly of the exhaust gas treatment equipment according to claim 1, characterized in that: The airway tube (22) comprises a first conduit (222) and a second conduit (223), wherein the second conduit (223) is arranged below the first conduit (222).

7. The lower box assembly of the exhaust gas treatment equipment according to claim 6, characterized in that: The first conduit (222) is arranged along the inner edge of the lower box body (1) toward the axis of the lower box body (1), and the first conduit (222) is used to conduct heat through the box wall to raise the local temperature.

8. The lower box assembly of the exhaust gas treatment equipment according to claim 6, characterized in that: The second conduit (223) includes a horizontal portion and a vertical portion, and the second conduit (223) is used to enhance gas flow.

9. The lower box assembly of the exhaust gas treatment equipment according to claim 1, characterized in that: The diameter of the air guide tube (22) is 40-50 mm, and the diameter of the air guide hole (221) is 5-8 mm.

10. The lower box assembly of the exhaust gas treatment equipment according to claim 1, characterized in that: The area of ​​the air guide hole (221) is larger than the cross-sectional area of ​​the air guide tube (22).

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