CN216935092U

CN216935092U - Dust-removing heat exchanger

Info

Publication number: CN216935092U
Application number: CN202220272254.9U
Authority: CN
Inventors: 杨宝贺
Original assignee: Xinjiang Tianxin Jingrun Environmental Protection Technology Co ltd
Current assignee: Xinjiang Tianxin Jingrun Environmental Protection Technology Co ltd
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-07-12
Anticipated expiration: 2032-02-10

Abstract

The utility model relates to the technical field of environmental protection, in particular to a dust-removing heat-exchanging device, which comprises a shell, wherein the upper part of the shell is connected with an air inlet pipe, a spiral clapboard is arranged in the shell and forms a spiral air duct in the shell, a heat exchange channel is arranged in the spiral clapboard, an air outlet pipe is arranged at the top of the shell, a dust exhaust port is arranged at the bottom of the shell, high-temperature dust-containing gas flows in the spiral air channel, a heat exchange medium flows in the heat exchange channel, compared with the prior art, the dust removal and heat exchange device provided by the utility model has simple structure and high heat exchange efficiency, the smoke outlet of the boiler is connected with the air inlet pipe of the device, most of heat in hot smoke is absorbed by water, meanwhile, dust in the flue gas is also removed by the dust removal device, so that the organic combination of heat exchange and dust removal is realized, and the dual purposes of waste heat utilization and environment-friendly emission are achieved.

Description

Dust-removing heat exchanger

Technical Field

The utility model relates to the technical field of environmental protection, in particular to a dust removal and heat exchange device.

Background

At present, heat exchange and dust removal are two independent systems. A heat exchanger, also called a heat exchanger, is used for equipment for exchanging heat between fluids with different temperatures. One fluid is higher in temperature and emits heat; the other fluid is at a lower temperature and absorbs heat. The heat exchanger is divided into three categories of dividing wall type, mixed type and heat accumulating type according to the heat transfer mode. The dust removal is divided into two stages of coarse dust removal and fine dust removal. The coarse dust removal mainly adopts a dust settling chamber, reduces the flow velocity of dust-containing flue gas, realizes natural settling of coarse particle dust by utilizing the gravity principle, and reduces the dust content in the flue gas. The fine dust removal generally adopts a bag dust remover, a ceramic multi-tube dust remover, an electric dust remover and the like to carry out high-efficiency dust removal, and reaches the environmental-friendly discharge standard. At present, a complete dust removal and heat exchange device capable of removing dust while exchanging heat does not exist.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a dust removal heat exchange device.

The technical scheme adopted by the utility model is as follows: dust removal heat transfer device, the key lies in: the air inlet pipe is connected to the upper portion of the shell, a spiral partition plate is arranged in the shell, a spiral air channel is formed in the shell, a heat exchange channel is formed in the spiral partition plate, an air outlet pipe is arranged at the top of the shell, a dust exhaust port is formed in the bottom of the shell, high-temperature dust-containing gas flows in the spiral air channel, and a heat exchange medium flows in the heat exchange channel.

Preferably, the spiral partition plate comprises a plurality of strip-shaped arc plates, cavities are formed in the strip-shaped arc plates, the strip-shaped arc plates are spliced to form an integral structure, adjacent cavities are sequentially communicated to form the heat exchange channel, and the upper end of the spiral partition plate is fixedly connected with the top of the shell.

Preferably, the air inlet pipe is arranged close to the top of the shell and connected with the shell along the tangential direction.

Preferably, the dust exhaust device further comprises a medium inlet pipe and a medium outlet pipe, the medium outlet pipe is communicated with the cavity on the outermost side and penetrates out of the top of the shell, and the medium inlet pipe is communicated with the cavity on the innermost side and penetrates out of the dust exhaust port.

Preferably, the lower part of the shell is contracted towards the center to form an inverted cone, and the dust exhaust port is positioned at the vertex of the cone.

Preferably, the outer wall of the shell is provided with a heat insulation layer.

Has the advantages that: compared with the prior art, the dust-removing heat-exchanging device provided by the utility model has the advantages that the structure is simple, the heat-exchanging efficiency is high, the smoke outlet of the boiler is connected with the air inlet pipe of the device, most of heat in hot smoke is absorbed by water, and meanwhile, dust in the smoke is removed by the dust-removing device, so that the organic combination of heat exchange and dust removal is realized, and the double purposes of waste heat utilization and environment-friendly emission are achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the spiral separator.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, the dust-removing heat exchanger comprises a housing 1, wherein an air inlet pipe 2 is connected to the upper portion of the housing 1, a spiral partition plate 3 is arranged in the housing 1, a spiral air duct is formed in the housing 1 by the spiral partition plate 3, a heat exchange channel is arranged in the spiral partition plate 3, an air outlet pipe 4 is arranged at the top of the housing 1, a dust exhaust port 5 is arranged at the bottom of the housing 1, high-temperature dust-containing gas flows in the spiral air duct, and a heat exchange medium flows in the heat exchange channel. During practical use, high-temperature flue gas enters the spiral air duct from the air inlet pipe, and when the air current is rotating motion along the spiral partition plate, dust particles in the air current can be separated out due to the effect of centrifugal force and are discharged from the dust discharge port, heat in the flue gas is gradually absorbed by a heat exchange medium, and the temperature of the discharged flue gas is very low.

In this embodiment, the spiral partition plate 3 includes a plurality of strip arc plates 31, all set up the cavity in the strip arc plate 31, it is a plurality of the strip arc plate 31 splices and forms overall structure, and adjacent cavity communicates in proper order and forms the heat transfer passageway, the upper end of spiral partition plate 3 with 1 top fixed connection of casing. When the heat exchange device is actually used, in the process that flue gas flows in the spiral air duct, the heat exchange medium is stored in the cavity and can gradually absorb the heat of the flue gas.

In this embodiment, the air inlet pipe 2 is disposed near the top of the housing 1 and connected to the housing 1 along a tangential direction. When the dust separation device is in actual use, airflow enters the spiral air duct along the tangential direction, so that the centrifugal force generated by the tangential speed of the rotating airflow is helpful for separating dust particles in the airflow from the airflow.

In this embodiment, the dust exhaust device further comprises a medium inlet pipe 6 and a medium outlet pipe 7, the medium outlet pipe 7 is communicated with the cavity on the outermost side and penetrates out of the top of the shell 1, the medium inlet pipe 6 is communicated with the cavity on the innermost side and penetrates out of the dust exhaust port 5, and a temperature sensor is arranged on the medium outlet pipe 7. During the in-service use, the heat transfer medium is different with the flow direction of high temperature flue gas, improves heat exchange efficiency.

In this embodiment, the lower portion of the casing 1 is tapered toward the center to form an inverted cone, and the dust exhaust port 5 is located at the vertex of the cone. When in actual use, the dust collector is beneficial to dust collection.

In this embodiment, the outer wall of the shell 1 is provided with a heat insulation layer, so that heat loss is avoided during actual use.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and that those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims

1. Dust removal heat transfer device, its characterized in that: including casing (1), the upper portion of casing (1) is connected with air-supply line (2), be equipped with spiral baffle (3) in casing (1), spiral baffle (3) are in form spiral air duct in casing (1), set up the heat transfer passageway in spiral baffle (3), the top of casing (1) is equipped with out tuber pipe (4), dust exhaust mouth (5) have been seted up to casing (1) bottom, and high temperature dusty gas flows in spiral air duct, and heat transfer medium flows in the heat transfer passageway.

2. The dust-removing heat exchange device of claim 1, wherein: spiral baffle (3) include a plurality of strip arc (31), all set up the cavity in strip arc (31), it is a plurality of strip arc (31) concatenation forms overall structure, and adjacent cavity communicates the formation in proper order the heat transfer passageway, the upper end of spiral baffle (3) with casing (1) top fixed connection.

3. The dust-removing heat exchange device of claim 1, wherein: the air inlet pipe (2) is close to the top of the shell (1) and is connected with the shell (1) along the tangential direction.

4. The dust-removing heat exchange device of claim 2, wherein: the dust exhaust device is characterized by further comprising a medium inlet pipe (6) and a medium outlet pipe (7), wherein the medium outlet pipe (7) is communicated with the cavity on the outermost side and penetrates out of the top of the shell (1), and the medium inlet pipe (6) is communicated with the cavity on the innermost side and penetrates out of the dust exhaust port (5).

5. The dust-removing heat exchange device of claim 1, wherein: the lower part of the shell (1) is contracted towards the center to form an inverted cone, and the dust exhaust port (5) is positioned at the top of the cone.

6. The dust-removing heat exchange device of claim 1, wherein: the outer wall of the shell (1) is provided with a heat insulation layer (11).