CN112844010A

CN112844010A - Exhaust gas treatment system

Info

Publication number: CN112844010A
Application number: CN201911102121.6A
Authority: CN
Inventors: 李建霖; 曾伟庭
Original assignee: Wholetech System Hitech Ltd
Current assignee: Wholetech System Hitech Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2021-05-28

Abstract

An exhaust gas treatment system comprises an inlet washing unit, a reaction unit communicated with the inlet washing unit, and an outlet washing unit communicated with the reaction unit. The inlet washing unit comprises an inlet body defining a first inner space, and an inlet auxiliary module arranged on the inlet body. The inlet auxiliary module is provided with an inlet shell part, a first sampling pipe, a first air pressure sensor and a first nitrogen gas supply pipe, wherein the inlet shell part is arranged on the inlet body and is provided with a first opening facing the first inner space, the first sampling pipe is arranged on the inlet shell part and is provided with a first sampling hole communicated with the first inner space, the first air pressure sensor is connected to the first sampling pipe, the first opening facing the same side as the first sampling hole is communicated with the first inner space, and nitrogen gas can be supplied to the first inner space without influencing pressure detection.

Description

Exhaust gas treatment system

Technical Field

The invention relates to pollutant treatment equipment for industrial processes, in particular to an exhaust gas treatment system.

Background

Referring to fig. 1, a conventional exhaust gas treatment apparatus 1 includes an inlet scrubbing unit 11 adapted to communicate with a front-end manufacturing apparatus (not shown), a reaction unit 12 communicating with the inlet scrubbing unit 11, an outlet scrubbing unit 13 communicating with the reaction unit 12, and a water tank 14 for receiving scrubbing wastewater. The inlet washing unit 11 includes a body 110 defining an inner space 100, a nitrogen gas supply pipe 111 disposed in the body 110 and communicating with the inner space 100, and a pressure detecting module 112 disposed in the body 110 at an interval from the nitrogen gas supply pipe 111 and configured to detect a pressure value of the inner space 100. The nitrogen gas supply pipe 111 is used to supply nitrogen gas to the inner space 100, because the nitrogen gas is an inert gas for chemical reaction, and in addition to adjusting the gas concentration in cooperation with an additionally introduced reaction gas, it can promote the gas flow in the inner space 100 without causing chemical reaction and provide additional kinetic energy for gas movement, thereby reducing the chance of dust particles in the exhaust gas adhering to the inner wall surface of the body 110.

However, in order to reliably detect the gas pressure in the inner space 100, the pressure detecting module 112 is required to directly sample the gas in the inner space 100, so that although the adhesion of dust particles to the body 110 can be reduced through the nitrogen gas supply pipe 111, it is difficult to ensure that the pressure detecting module 112 is not affected by the dust particles in the exhaust gas. When the pressure detecting module 112 is stuck with dust particles of the exhaust gas, even if the dust particles are blocked, the accuracy of the pressure detection is certainly affected, and for the automatic operation of performing the judgment depending on the pressure value in the inner space 100, adverse effects may be generated, and even the safety of the operation of the exhaust gas treatment apparatus 1 may be affected.

Disclosure of Invention

The present invention is directed to an exhaust gas treatment system capable of ensuring normal operation of pressure detection. The waste gas treatment system comprises an inlet washing unit, a reaction unit communicated with the downstream of the inlet washing unit, and an outlet washing unit communicated with the downstream of the reaction unit.

The inlet washing unit comprises an inlet body defining a first inner space, and an inlet auxiliary module arranged on the inlet body. The inlet auxiliary module is provided with an inlet shell portion, a first sampling pipe, a first air pressure sensor and a first nitrogen supply pipe, wherein the inlet shell portion is arranged on the inlet body and is provided with a first opening facing the first inner space, the first sampling pipe is arranged on the inlet shell portion and is provided with a first sampling hole communicated with the first inner space and facing the same side with the first opening, the first air pressure sensor is connected to the first sampling pipe, and the first nitrogen supply pipe is connected to the inlet shell portion and is communicated with the first inner space through the first opening.

The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.

Preferably, in the exhaust gas treatment system, the outlet washing unit includes an outlet body defining a second inner space, and an outlet auxiliary module disposed in the outlet body, the outlet auxiliary module includes an outlet shell portion disposed in the outlet body and having a second port facing the second inner space, a second sampling pipe disposed in the outlet shell portion and having a second sampling hole communicated with the second inner space and facing the same side as the second port, a second air pressure sensor connected to the second sampling pipe, and a second nitrogen supply pipe connected to the outlet shell portion and communicated with the second inner space through the second port. Preferably, in the exhaust gas treatment system, the inlet housing of the inlet auxiliary module surrounds and defines an inlet chamber, and the first nitrogen supply pipe is communicated with the inlet chamber.

Preferably, in the exhaust gas treatment system, the outlet housing of the outlet auxiliary module surrounds and defines an outlet chamber, and the second nitrogen supply pipe is communicated with the outlet chamber. The invention has the beneficial effects that: the first sampling hole of the first sampling pipe is towards the same side with the first port of the inlet shell part, so that nitrogen gas in the first inner space is input by the first nitrogen gas supply pipe and cannot be directly and reversely injected into the first sampling hole or the first port, the basic function of preventing exhaust gas dust from being attached to the inner wall of the inlet body can be exerted, kinetic energy for enabling the exhaust gas dust to be far away from the first port and the first sampling hole can be provided while the exhaust gas dust is output, exhaust gas dust accumulation is prevented, and therefore the accuracy of the first air pressure sensor for detecting air pressure through the first sampling pipe is optimized.

Drawings

FIG. 1 is a schematic diagram illustrating a prior art exhaust treatment device;

FIG. 2 is a schematic view illustrating a first embodiment of an exhaust treatment system of the present invention;

FIG. 3 is a partially enlarged perspective view illustrating an entrance assisting module of the first embodiment;

FIG. 4 is a side view in cross section, which is a perspective view of FIG. 3 illustrating a first sampling tube and a first nitrogen gas supply tube of the inlet assist module;

FIG. 5 is a schematic view illustrating a second embodiment of an exhaust treatment system of the present invention;

FIG. 6 is a partially enlarged perspective view illustrating an exit auxiliary module of the second embodiment; and

fig. 7 is a side view of a cross-sectional view, and fig. 6 is a side view of a second sampling pipe and a second nitrogen supply pipe of the outlet auxiliary module.

Detailed Description

The invention is described in detail below with reference to the following figures and examples:

referring to fig. 2, a first embodiment of the exhaust gas treatment system of the present invention includes an inlet scrubber unit 2, a reactor unit 3 connected to a downstream of the inlet scrubber unit 2, and an outlet scrubber unit 4 connected to a downstream of the reactor unit 3. It should be noted that the inlet scrubber unit 2 and the outlet scrubber unit 4 are mainly used for processing the exhaust gas by spraying a scrubber liquid therein, and the reaction unit 3 is used for providing a reaction gas for the processed exhaust gas components to generate relatively harmless substances through a specific chemical reaction.

Referring to fig. 2 to 4, the inlet washing unit 2 includes an inlet body 21 defining a first inner space 210, and an inlet auxiliary module 22 disposed at the inlet body 21. The inlet auxiliary module 22 has an inlet housing part 221 disposed on the inlet body 21 and having a first through opening 229 facing the first inner space 210, a first sampling tube 222 disposed on the inlet housing part 221 and having a first sampling hole 228 communicating with the first inner space 210 and facing the same side as the first through opening 229, a first air pressure sensor 223 connected to the first sampling tube 222, and a first nitrogen gas supply tube 224 connected to the inlet housing part 221 and communicating with the first inner space 210 through the first through opening 229.

The inlet casing 221 defines an inlet chamber 299, and the first nitrogen supply pipe 224 is connected to the inlet chamber 299. That is, the nitrogen gas supplied from the first nitrogen gas supplying pipe 224 is directly injected into the first inner space 210 through the first port 229 without being reversely injected into the first sampling pipe 222, so that the operation of detecting the gas pressure by sampling the gas from the first sampling pipe 222 is not affected. In addition, while the nitrogen gas is output from the first nitrogen gas supply pipe 224, kinetic energy of the gas far away from the first through hole 229 and even around the first sampling hole 228 to the first inner space 210 is generated, which is beneficial to keeping the exhaust gas dust away from the first through hole 229 and the first sampling hole 228, and naturally prevents dust accumulation, and optimizes the accuracy of pressure detection while maintaining the first sampling pipe 222 clear.

Referring to fig. 5 to 7, a second embodiment of the exhaust gas treatment system of the present invention is different from the first embodiment in that: the outlet washing unit 4 includes an outlet body 41 defining a second inner space 410, and an outlet auxiliary module 42 disposed on the outlet body 41, wherein the outlet auxiliary module 42 has an outlet shell portion 421 disposed on the outlet body 41 and having a second port 429 facing the second inner space 410, a second sampling pipe 422 disposed on the outlet shell portion 421 and having a second sampling hole 428 communicating with the second inner space 410 and facing the same side as the second port 429, a second pressure sensor 423 connected to the second sampling pipe 422, and a second nitrogen supply pipe 424 connected to the outlet shell portion 421 and communicating with the second inner space 410 through the second port 429. Wherein the outlet casing portion 421 surrounds and defines an outlet chamber 499, and the second nitrogen supply pipe 424 is communicated with the outlet chamber 499.

Although the amount of dust particles contained in the exhaust gas is greatly reduced after the exhaust gas is processed by the reaction unit 3, in order to ensure the normal operation of the second embodiment, the outlet auxiliary module 42 may be disposed in the outlet washing unit 4, and in the same mode as the inlet auxiliary module 22 of the first embodiment, the dust accumulation in the second port 429 and the second sampling hole 428 is avoided, so as to ensure the accuracy of the gas pressure detection, that is, another layer of assurance can be formed by the gas pressure value in the second inner space 410, and when the operation of the outlet washing unit 4 is abnormal, necessary treatment is performed in real time, thereby further improving the level of assurance of the normal operation of the second embodiment.

Claims

1. An exhaust gas treatment system comprises an inlet washing unit, a reaction unit communicated with the downstream of the inlet washing unit, and an outlet washing unit communicated with the downstream of the reaction unit; the method is characterized in that: the inlet washing unit comprises an inlet body defining a first inner space, and an inlet auxiliary module arranged on the inlet body, wherein the inlet auxiliary module is provided with an inlet shell part arranged on the inlet body and provided with a first port facing the first inner space, a first sampling pipe arranged on the inlet shell part and provided with a first sampling hole communicated with the first inner space and facing the same side of the first port, a first air pressure sensor connected to the first sampling pipe, and a first nitrogen supply pipe connected to the inlet shell part and communicated with the first inner space through the first port.

2. The exhaust treatment system of claim 1, wherein: the export washing unit including define out the export body of second inner space, and set up in the export of export body is assisted the module, export is assisted the module have set up in export body and have the orientation the export shell of the second opening of second inner space, set up in export shell and have communicate in the second inner space and with the second opening is towards the second sampling pipe of the second sampling hole of homonymy, connect in the second atmospheric pressure sensor of second sampling pipe, and connect in export shell and warp the second opening communicate in the second nitrogen supply pipe of second inner space.

3. The exhaust treatment system of claim 1, wherein: the inlet housing of the inlet auxiliary module surrounds a defined inlet chamber, with the first nitrogen supply pipe communicating with the inlet chamber.

4. The exhaust treatment system of claim 2, wherein: the outlet shell of the outlet auxiliary module surrounds and defines an outlet chamber, and the second nitrogen supply pipe is communicated with the outlet chamber.