Gas collecting device for waste gas combustion system

Abstract

The present invention discloses a gas collecting device for an exhaust gas combustion system, and relates to the technical field of the exhaust gas combustion system. The present invention includes an exhaust gas washer, a water filter box, a circulating water pump, a buffer gas tank, an air compressor, and a compressed gas tank; the exhaust gas washer is used for water washing of the exhaust gas; the water after the exhaust gas washer washes the exhaust gas flows into the water filter box; the water filtered by the water filter box flows back to the exhaust gas washer after passing through the circulating water pump; the exhaust gas washer is filtered and transported to the buffer gas tank through a first pipeline; the air inlet of the air compressor is connected to the output end of the buffer gas tank through a second pipeline; the compressed output end of the air compressor is connected to the air inlet end of the compressed gas tank through a third pipeline; the compressed gas tank gas delivery port is connected to the exhaust gas burner through a fourth pipeline. The present invention uses a combination of an exhaust gas washer, a water filter box, a circulating water pump, a buffer gas tank, an air compressor, and a compressed gas tank to compress the exhaust gas after water washing in a low-cost manner for use in an exhaust gas combustion system.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas combustion systems, and in particular relates to a gas collecting device for waste gas combustion systems. Background Art

[0002] During the factory processing, especially the chemical plant processing, a large amount of VOC gas will be generated. These VOC gases will cause air pollution and need to be treated by the exhaust gas combustion system. The treated clean gas can be discharged into the atmosphere. Since VOC gas is mixed with a large amount of particles and residual glue after being discharged from the exhaust gas generating equipment, it cannot be treated in the furnace body of the exhaust gas combustion system. It is necessary to filter it before entering the furnace body. These particles and residual glue have strong adhesion and can easily cause the filter device to be blocked. The filter device needs to be cleaned in time, usually by water washing. However, it is difficult to thoroughly clean the residual glue by water washing, which brings great difficulties to cleaning.

[0003] Among them, the invention with publication number CN106031834B discloses an air collecting box for an exhaust gas combustion system, including an air collecting box body, a filter, a filter driving device, a filter cleaning box and a warm air delivery duct. The filter crosses the air collecting box body and can filter the exhaust gas flow in the air collecting box body. The filter driving device drives the filter to slide in a direction perpendicular to the air flow in the air collecting box body. The filter cleaning box is located on one side of the air collecting box body. The filter crosses the filter cleaning box. The filter cleaning box is connected to the warm air delivery duct. Warm air flows through the warm air delivery duct. The warm air is sprayed onto the surface of the filter. The present invention has high cleaning efficiency and thorough cleaning, saves labor, and adopts a mixture of high-temperature gas discharged from the exhaust gas combustion system and indoor air as a source of warm air, which saves energy, protects the environment, and has high energy utilization. After the filter is automatically cleaned, it can be used repeatedly, saving filtering costs. The filter screen of the above scheme passes through the gas collecting box and the filter cleaning box under the drive of the filter screen driving device. The two boxes are not separated continuously. Therefore, a precise sealing structure needs to be designed between the gas collecting box and the filter cleaning box and the filter screen to prevent the overflow of exhaust gas. The manufacturing cost of the overall gas collecting equipment is high, and the maintenance cost is also increased accordingly. In order to solve the above technical problems, this application document provides a gas collecting device for an exhaust gas combustion system. Summary of the invention

[0004] The object of the present invention is to provide a gas collecting device for a waste gas combustion system, which can wash the waste gas with water and compress it in a low-cost manner through a combination of a waste gas cleaner, a water filter box, a circulating water pump, a buffer gas tank, an air compressor and a compressed gas tank for convenient use in the waste gas combustion system.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a gas collecting device for a waste gas combustion system, comprising a waste gas washer, a water filter box, a circulating water pump, a buffer gas tank, an air compressor, and a compressed gas tank; the waste gas washer is used for washing the waste gas with water; the water after the waste gas washer cleans the waste gas flows into the water filter box; the water filtered by the water filter box flows back to the waste gas washer after passing through the circulating water pump.

[0007] As a preferred technical solution of the present invention, the exhaust gas cleaner filters and transports the exhaust gas to the buffer gas tank through the first pipe; the air compressor air inlet is connected to the buffer gas tank output end through the second pipe; the air compressor compression output end is connected to the compressed gas tank air inlet end through the third pipe; the compressed gas tank air outlet is connected to the exhaust gas burner through the fourth pipe.

[0008] As a preferred technical solution of the present invention, the exhaust gas washer includes an exhaust gas filter bottom box and a gas transmission upper cover sealedly installed on the upper end of the exhaust gas filter bottom box.

[0009] As a preferred technical solution of the present invention, the exhaust gas filter bottom box includes a cylinder with an upper opening; four fixed supporting legs are fixed to the lower end of the cylinder; an air inlet pipe is fixedly connected to the circumferential side surface of the lower half of the cylinder; an annular water trough is fixed to the inner wall of the cylinder near the upper end; a downward-closed conical cylinder is fixedly connected to the upper end of the inner ring surface of the annular water trough; an output pipe is fixedly connected to the lower end of the conical cylinder, and the output pipe passes through the cylinder to its bottom; several layers of fan-shaped air outlets are arranged evenly distributed in an annular direction on the upper half of the conical cylinder; several layers of conical cylinder ring plates matching the inner diameter of the conical cylinder are fixed to the inner wall of the conical cylinder, and the inner ring surfaces of the several layers of the conical cylinder ring plates are coplanar and arranged parallel to the inner wall of the conical cylinder; a return pipe connected to the annular water trough is fixed to the bottom of the cylinder.

[0010] As a preferred technical solution of the present invention, the gas transmission upper cover comprises an annular upper cover; an air outlet pipe is arranged at the middle of the upper end of the annular upper cover.

[0011] As a preferred technical solution of the present invention, a plurality of fan-shaped plates are fixed in an annular manner on the inner top surface of the annular upper cover; a conical barrel with an upper opening is fixed at the lower end of the plurality of fan-shaped plates; and a drainage hole is opened at the lower end of the conical barrel.

[0012] As a preferred technical solution of the present invention, the distance between the outer wall of the conical barrel and the inner annular surface of the conical cylinder ring plate is in the range of 1-2 cm.

[0013] As a preferred technical solution of the present invention, a drain pipe and a drain valve are provided at the lower end of the buffer gas tank and the lower end of the compressed gas tank.

[0014] The present invention has the following beneficial effects:

[0015] 1. The blower of the present invention collects exhaust gas from the exhaust gas emission area through a pipeline and transports the exhaust gas to the exhaust gas cleaner. The exhaust gas contacts water through multiple channels and a large area to wash away particulate matter and colloid in the exhaust gas. The exhaust gas after water washing is first passed into a buffer gas tank and then compressed into a compressed gas tank by an air compressor and transported to the burner in a compressed state. The transportation distance is long, which is convenient for long-distance exhaust gas treatment needs. The overall exhaust gas collection process equipment is stable, and the exhaust gas cleaning, filtration and collection costs are low.

[0016] 2. The exhaust gas filter bottom box of the exhaust gas cleaner of the present invention washes the exhaust gas in an alternating manner by means of annular conical surface water discharge and annular air outlet filtration, and cooperates with the conical barrel of the gas transmission upper cover to increase the contact area between the exhaust gas and the conical annular surface, resulting in a large washing area and simple and convenient processing.

[0017] 3. The exhaust gas cleaner of the present invention comprises two parts, namely, an exhaust gas filter bottom box and an air transmission upper cover. The overall structure is reasonable and simple, and the manufacture and maintenance are convenient. It cooperates with a water filter box and a circulating water pump to form an exhaust gas water washing, filtering and circulation process, and the operation is stable and reliable.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of a gas collecting device for a waste gas combustion system of the present invention;

[0021] Figure 2 is a top view of the exhaust gas washer;

[0022] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0023] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0024] Figure 5 It is a schematic diagram of the structure of the exhaust gas filter bottom box;

[0025] Figure 6 It is a structural schematic diagram of the gas transmission cover;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1-exhaust gas cleaner, 2-water filter box, 3-circulating water pump, 4-buffer gas tank, 5-air compressor, 6-compressed gas tank, 11-exhaust gas filter bottom box, 12-gas transmission cover, 111-cylinder, 112-fixed support leg, 113-inlet pipe, 114-annular water tank, 115-conical cylinder, 116-output pipe, 117-fan-shaped air outlet, 118-conical cylinder ring plate, 119-return pipe, 121-annular cover, 122-air outlet pipe, 123-fan-shaped plate, 124-conical barrel, 125-drainage hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Specific embodiment one:

[0030] See also Figure 1 As shown, the present invention is a coaxial switch controller with convenient wiring, including an exhaust gas washer 1, a water filter box 2, a circulating water pump 3, a buffer gas tank 4, an air compressor 5, and a compressed gas tank 6; the exhaust gas washer 1 is used for washing the exhaust gas with water; the water after the exhaust gas is washed by the exhaust gas washer 1 flows into the water filter box 2; the water filtered by the water filter box 2 flows back to the exhaust gas washer 1 after passing through the circulating water pump 3, and the lower ends of the buffer gas tank 4 and the compressed gas tank 6 are both provided with drain pipes and drain valves, and the output pipe of the compressed gas tank 6 is installed with a gas dryer for output use.

[0031] After filtering, the exhaust gas washer 1 is transported to the buffer gas tank 4 through the first pipeline; the air inlet of the air compressor 5 is connected to the output end of the buffer gas tank 4 through the second pipeline; the compressed output end of the air compressor 5 is connected to the air inlet end of the compressed gas tank 6 through the third pipeline; the gas delivery port of the compressed gas tank 6 is connected to the exhaust gas burner through the fourth pipeline. The buffer gas tank 4 and the compressed gas tank 6 reduce the moisture in the exhaust gas to a certain extent.

[0032] like Figure 2-3 As shown, the exhaust gas washer 1 includes an exhaust gas filter bottom box 11 and a gas transmission upper cover 12 sealed and installed on the upper end of the exhaust gas filter bottom box 11 .

[0033] like Figure 3-5As shown, the exhaust gas filter bottom box 11 includes a cylinder 111 with an upper opening; four fixed support legs 112 are fixed to the lower end of the cylinder 111; an air inlet pipe 113 is fixedly connected to the circumferential side surface of the lower half of the cylinder 111; an annular water tank 114 is fixed to the inner wall of the cylinder 111 near the upper end; a downwardly closed conical cylinder 115 is fixedly connected to the upper end of the inner ring surface of the annular water tank 114; an output pipe 116 is fixedly connected to the lower end of the conical cylinder 115, and the output pipe 116 passes through the cylinder 111 to the bottom thereof; a plurality of layers of fan-shaped air outlets 117 are arranged evenly distributed in the annular direction on the upper half of the conical cylinder 115; a plurality of layers of conical cylinder ring plates 118 matching the inner diameter of the conical cylinder 115 are fixed to the inner wall of the conical cylinder 115, and the inner ring surfaces of the plurality of layers of conical cylinder ring plates 118 are coplanar and arranged parallel to the inner wall of the conical cylinder 115; a return pipe 119 connected to the annular water tank 114 is passed through and fixed to the bottom of the cylinder 111.

[0034] like Figure 6 As shown, the gas transmission cover 12 includes an annular cover 121; an air outlet pipe 122 is arranged in the middle of the upper end of the annular cover 121; a plurality of fan-shaped plates 123 are fixed in an annular manner on the inner top surface of the annular cover 121; a conical barrel 124 with an upper opening is fixed at the lower end of the plurality of fan-shaped plates 123; a drainage hole 124 is opened at the lower end of the conical barrel 124.

[0035] The distance between the outer wall of the conical barrel 123 and the inner surface of the conical ring plate 118 is in the range of 1-2 cm, thereby enlarging the relative contact area between the exhaust gas and the water.

[0036] The exhaust gas filter bottom box 11 of the exhaust gas cleaner 1 performs alternating water washing on the exhaust gas by means of annular conical surface water discharge and annular air outlet filtering, and cooperates with the conical barrel 124 of the gas transmission upper cover 12 to increase the contact area between the exhaust gas and the conical annular surface, so that the water washing area is large and the treatment is simple and convenient.

[0037] A specific application of this embodiment is:

[0038] The blower collects the exhaust gas from the exhaust gas emission area through the pipeline and transports the exhaust gas to the exhaust gas cleaner 1. The exhaust gas contacts with water through multiple channels and a large area to wash away the particulate matter and colloid in the exhaust gas. The exhaust gas after water washing first enters the buffer gas tank 4 and then is compressed into the compressed gas tank 6 through the air compressor 5 and transported to the burner in a compressed state. The transportation distance is long, which is convenient for the exhaust gas treatment needs over long distances.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A gas collecting device for an exhaust gas combustion system, characterized in that: It comprises an exhaust gas washer (1), a water filter box (2), a circulating water pump (3), a buffer gas tank (4), an air compressor (5), and a compressed gas tank (6); The exhaust gas washer (1) is used for washing the exhaust gas with water; the water after the exhaust gas is washed by the exhaust gas washer (1) flows into the water filter box (2); the water filtered by the water filter box (2) flows back to the exhaust gas washer (1) after passing through the circulating water pump (3); The exhaust gas washer (1) filters and delivers the exhaust gas to the buffer gas tank (4) through a first pipeline; the air inlet of the air compressor (5) is connected to the output end of the buffer gas tank (4) through a second pipeline; the compressed output end of the air compressor (5) is connected to the air inlet of the compressed gas tank (6) through a third pipeline; the air delivery port of the compressed gas tank (6) is connected to the exhaust gas burner through a fourth pipeline; The exhaust gas washer (1) comprises an exhaust gas filter bottom box (11) and a gas transmission upper cover (12) hermetically mounted on the upper end of the exhaust gas filter bottom box (11); The exhaust gas filter bottom box (11) comprises a cylinder (111) with an upper opening; four fixed support legs (112) are fixed at the lower end of the cylinder (111); an air intake pipe (113) is fixedly connected to the circumferential side surface of the lower half of the cylinder (111); an annular water tank (114) is fixedly connected to the inner wall of the cylinder (111) near the upper end; a downwardly closed conical cylinder (115) is fixedly connected to the upper end of the inner ring surface of the annular water tank (114); an output pipe (116) is fixedly connected to the lower end of the conical cylinder (115), and the output pipe (116) 116) passes through the cylinder (111) to the bottom thereof; a plurality of layers of fan-shaped air outlets (117) uniformly distributed in an annular direction are provided on the upper half of the conical cylinder (115); a plurality of layers of conical cylinder ring plates (118) matching the inner diameter of the conical cylinder (115) are fixed to the inner wall of the conical cylinder (115), and the inner annular surfaces of the plurality of layers of the conical cylinder ring plates (118) are coplanar and arranged parallel to the inner wall of the conical cylinder (115); a return pipe (119) connected to the annular water tank (114) is fixedly passed through the bottom of the cylinder (111).

2. The gas collecting device for an exhaust gas combustion system according to claim 1, characterized in that: The gas transmission upper cover (12) comprises an annular upper cover (121); an air outlet pipe (122) is arranged at the middle of the upper end of the annular upper cover (121).

3. The gas collecting device for an exhaust gas combustion system according to claim 2, characterized in that: A plurality of sector plates (123) are annularly fixed on the inner top surface of the annular upper cover (121); a conical barrel (124) with an upper opening is fixed at the lower ends of the plurality of sector plates (123); and a drainage hole (124) is provided at the lower end of the conical barrel (124).

4. The gas collecting device for an exhaust gas combustion system according to claim 3, characterized in that: The distance between the outer wall of the conical barrel (123) and the inner annular surface of the conical cylinder ring plate (118) is in the range of 1-2 cm.

5. The gas collecting device for an exhaust gas combustion system according to claim 4, characterized in that: The lower end of the buffer gas tank (4) and the lower end of the compressed gas tank (6) are both provided with a drainage pipe and a drainage valve.

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