CN212378003U

CN212378003U - Forced smoke exhaust air heat exchanger

Info

Publication number: CN212378003U
Application number: CN202020348099.5U
Authority: CN
Inventors: 潘景新
Original assignee: Hangzhou Zhongjing Technology Co ltd
Current assignee: Hangzhou Zhongjing Technology Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2021-01-19
Anticipated expiration: 2030-03-18

Abstract

The utility model relates to a forced smoke exhaust air heat exchanger, wherein a shell is provided with a smoke inlet end and a smoke outlet end; the tube bundle is arranged in the cavity of the shell; the flow distribution end cover is arranged at one end of the shell, and the flow collection box is arranged at the other end of the shell; the shunting end cover is provided with an air inlet and an air shunting cavity, the confluence box is provided with an air outlet and an air confluence cavity, and two ends of the tube bundle are respectively communicated with the air shunting cavity and the air confluence cavity; one interface of the three-way seat is connected with the smoke outlet end, and the other two interfaces are respectively connected with the ejector and the smoke exhaust tube. The heat exchanger is compact in structure and flexible to use, is suitable for being matched with one burner or a plurality of burners to be used on one industrial furnace, namely, a plurality of heat exchangers are arranged on one industrial furnace, dispersed heat supply and dispersed smoke discharge are realized, the circulation of air flow in the furnace can be promoted, the uniform distribution of the temperature in the furnace is improved, and the uniform temperature of the industrial furnace is improved.

Description

Forced smoke exhaust air heat exchanger

Technical Field

The utility model relates to an industrial furnace technical field specifically says, relates to a force air heat exchanger that discharges fume, is applicable to the industrial furnace of trades such as steel and iron, coloured, machinery, aviation, forging, pottery.

Background

At present, most of conventional burners are matched with heat exchangers which are generally concentrated heat exchangers, smoke in the furnace flows in a concentrated mode, the uniformity of the temperature in the furnace cannot be guaranteed, and the requirements for the performance of industrial furnaces to be higher and higher are challenged. Moreover, the conventional heat exchanger has a non-compact structure, is not flexible to use, and has an undesirable use effect, so that structural improvement and optimization are needed to be carried out on the heat exchanger, and a forced smoke exhaust air heat exchanger is designed to change a heat concentration heat recovery mode of the industrial furnace.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design is reasonable, compact, use nimble forced smoke exhaust air heat exchanger.

The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides a forced smoke exhaust air heat exchanger, includes casing and tube bank, its characterized in that: the device also comprises a flow distribution end cover, a flow converging box, a connecting three-way seat, an ejector and a smoke exhaust cylinder; the shell is provided with a smoke inlet end and a smoke outlet end; the tube bundle is arranged in the cavity of the shell; the flow distribution end cover is arranged at one end of the shell, and the flow collection box is arranged at the other end of the shell; the shunting end cover is provided with an air inlet and an air shunting cavity inside, the confluence box is provided with an air outlet and an air confluence cavity inside, and two ends of the tube bundle are respectively communicated with the air shunting cavity and the air confluence cavity; one interface of the three-way seat is connected with the smoke outlet end, and the other two interfaces are respectively connected with the ejector and the smoke exhaust tube.

Preferably, the tube bundle is composed of a plurality of seamless heat-resistant steel tubes, and rotational flow-shaped inserts are arranged in the heat-resistant steel tubes.

Preferably, the same ends of the plurality of seamless heat-resistant steel pipes constituting the tube bundle are welded to one tube sheet, and the other same ends of the plurality of seamless heat-resistant steel pipes are connected to one sealing plate.

Preferably, the tube plate is arranged at one end of the shell, and the header box is connected with the tube plate; the sealing plate is arranged at the other end of the shell, and the shunt end cover is connected with the sealing plate.

Preferably, a step-shaped heat-resistant sealing pipe sleeve is arranged at the joint of each steel pipe and the sealing plate.

Preferably, a partition board is further installed at one end of the tube bundle, the partition board is located below the sealing plate, a V-shaped compensator is arranged on the partition board, and one end of the V-shaped compensator is tightly pressed and sealed with the sealing groove in the sealing plate.

Preferably, the inner walls of the header box and the shell are respectively provided with a layer of heat insulation layer.

Preferably, the flue gas inlet end is provided with an inlet cavity, the flue gas outlet end is provided with an outlet cavity, and the inlet cavity and the outlet cavity are both communicated with the cavity of the shell.

Preferably, a connecting cavity is arranged in the connecting three-way seat, and an outlet cavity of the smoke outlet end is communicated with the connecting cavity.

When the utility model is applied specifically, the smoke inlet end on the shell is connected with the furnace wall, the inlet cavity of the smoke inlet end is communicated with the inner cavity of the furnace, smoke enters the cavity of the shell through the inlet cavity of the smoke inlet end, and after heat of the smoke exchanges heat with the tube bundle, the smoke enters the connecting cavity of the three-way seat through the outlet cavity of the smoke outlet end and is discharged by the smoke exhaust tube after being ejected by the air ejector; air enters the air distribution cavity from an air inlet on the distribution end cover, enters the tube bundle through distribution, enters the air collection cavity of the collection box after heat exchange between the air and the tube bundle, and is discharged through an air outlet.

Compared with the prior art, the utility model, have following advantage and effect: the heat exchanger is compact in structure and flexible to use, is suitable for being matched with one burner or a plurality of burners to be used on one industrial furnace, namely, a plurality of heat exchangers are arranged on one industrial furnace, dispersed heat supply and dispersed smoke discharge are realized, the circulation of air flow in the furnace can be promoted, the uniform distribution of the temperature in the furnace is improved, and the uniformity of the temperature of the industrial furnace is improved, so that the heat exchanger is a trend for future development.

Drawings

In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic front view of a cross-sectional structure according to an embodiment of the present invention.

Fig. 2 is a schematic sectional view taken along the line a-a in fig. 1.

Fig. 3 is a view illustrating a mounting structure at a sealing plate.

Description of reference numerals:

a housing 1; a cavity 101; a flue gas inlet end 12; an inlet chamber 120; a flue gas outlet end 13; an outlet chamber 130;

a tube bundle 2; a swirl insert 21;

a tube sheet 3; a partition plate 4; the V-shaped compensator 41;

a sealing plate 5; a seal groove 51; stepped heat resistant sealing sleeve 52;

a shunt end cap 6; an air inlet 61; an air distribution chamber 62;

a combiner box 7; an air outlet 71; an air manifold chamber 72;

connecting a tee seat 8; a connection chamber 81;

an ejector 9; a chimney 10; a furnace wall 11; an oven interior cavity 110; and a heat insulation layer 14.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Examples are given.

See fig. 1-3.

The embodiment discloses a forced smoke exhaust air heat exchanger, which comprises a shell 1, a tube bundle 2, a tube plate 3, a partition plate 4, a sealing plate 5, a shunt end cover 6, a confluence box 7, a connecting tee seat 8, an ejector 9 and a smoke exhaust tube 10.

In this embodiment, the casing 1 is provided with a flue gas inlet end 12 and a flue gas outlet end 13; the flue gas inlet end 12 is provided with an inlet cavity 120, the flue gas outlet end 13 is provided with an outlet cavity 130, and both the inlet cavity 120 and the outlet cavity 130 are communicated with the cavity 101 of the shell 1.

In this embodiment, the tube bundle 2 is mounted in the cavity 101 of the shell 1; the shunting end cover 6 is installed at the one end of casing 1, and the collection flow box 7 is installed at the other end of casing 1, and the inner wall department of collection flow box 7 and casing 1 all is equipped with one deck thermal insulation layer 14. Specifically, the tube bundle 2 is composed of a plurality of seamless heat-resistant steel tubes in which swirl inserts 21 are provided. The same ends of a plurality of seamless heat-resistant steel pipes forming the tube bundle 2 are welded on the tube plate 3, the other same ends of the plurality of seamless heat-resistant steel pipes are connected on the sealing plate 5, and the joint of each steel pipe and the sealing plate 5 is provided with a step-shaped heat-resistant sealing tube sleeve 52. The tube plate 3 is arranged at one end of the shell 1, and the confluence box 7 is connected with the tube plate 3; the sealing plate 5 is arranged at the other end of the shell 1, and the shunt end cover 6 is connected with the sealing plate 5.

In this embodiment, the partition plate 4 is located below the sealing plate 5 and is fixedly connected to the tube bundle 2, the V-shaped compensator 41 is disposed on the partition plate 4, and one end of the V-shaped compensator 41 is compressed and sealed with the sealing groove 51 of the sealing plate 5.

In this embodiment, the flow dividing end cap 6 is provided with an air inlet 61 and an air flow dividing cavity 62 therein, the combiner box 7 is provided with an air outlet 71 and an air flow converging cavity 72 therein, and two ends of the tube bundle 2 are respectively communicated with the air flow dividing cavity 62 and the air flow converging cavity 72. One connector connected with the three-way seat 8 is connected with the smoke outlet end 13, and the other two connectors are respectively connected with the ejector 9 and the smoke exhaust tube 10. A connecting cavity 81 is arranged in the connecting three-way seat 8, and an outlet cavity 130 of the smoke outlet end 13 is communicated with the connecting cavity 81.

When the heat exchanger is applied specifically, the flue gas inlet end 12 on the shell 1 is connected with the furnace wall 11, the inlet cavity 120 of the flue gas inlet end 12 is communicated with the inner cavity 110 of the furnace, flue gas enters the cavity 101 of the shell 1 from the inner cavity 110 of the furnace through the inlet cavity 120 of the flue gas inlet end 12, heat of the flue gas exchanges heat with the tube bundle 2, enters the connecting cavity 81 connected with the tee joint seat 8 through the outlet cavity 130 of the flue gas outlet end 13, and is discharged through the smoke exhaust tube 10; air enters the air diversion cavity 62 from the air inlet 61 on the diversion end cover 6, enters the tube bundle 2 through diversion, enters the air converging cavity 72 of the converging box 7 after heat exchange between the air and the tube bundle 2, and is discharged through the air outlet 71.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the patent idea of the utility model are included in the protection scope of the patent of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A forced-smoke-exhausting air heat exchanger comprising a shell (1) and a tube bundle (2), characterized in that: the device also comprises a flow distribution end cover (6), a flow converging box (7), a connecting three-way seat (8), an ejector (9) and a smoke exhaust tube (10); a flue gas inlet end (12) and a flue gas outlet end (13) are arranged on the shell (1); the tube bundle (2) is arranged in a cavity (101) of the shell (1); the flow distribution end cover (6) is installed at one end of the shell (1), and the confluence box (7) is installed at the other end of the shell (1); an air inlet (61) and an air distribution cavity (62) are arranged on the flow distribution end cover (6), an air outlet (71) and an air converging cavity (72) are arranged on the flow converging box (7), and two ends of the tube bundle (2) are respectively communicated with the air distribution cavity (62) and the air converging cavity (72); one interface of the three-way seat (8) is connected with the smoke outlet end (13), and the other two interfaces are respectively connected with the ejector (9) and the smoke exhaust tube (10).

2. A forced smoke exhaust air heat exchanger according to claim 1 wherein: the tube bundle (2) is composed of a plurality of seamless heat-resistant steel tubes, and rotational flow-shaped inserts (21) are arranged in the heat-resistant steel tubes.

3. A forced smoke exhaust air heat exchanger according to claim 2 wherein: the same ends of a plurality of seamless heat-resistant steel pipes forming the pipe bundle (2) are welded on one pipe plate (3), and the other same ends of the plurality of seamless heat-resistant steel pipes are connected on one sealing plate (5).

4. A forced smoke exhaust air heat exchanger according to claim 3 wherein: the tube plate (3) is arranged at one end of the shell (1), and the confluence box (7) is connected with the tube plate (3); the sealing plate (5) is arranged at the other end of the shell (1), and the shunt end cover (6) is connected with the sealing plate (5).

5. A forced smoke exhaust air heat exchanger according to claim 3 wherein: and a step-shaped heat-resistant sealing pipe sleeve (52) is arranged at the joint of each steel pipe and the sealing plate (5).

6. A forced smoke exhaust air heat exchanger according to claim 3 wherein: one partition plate (4) is further installed at one end of the tube bundle (2), the partition plate (4) is located below the sealing plate (5), the V-shaped compensator (41) is arranged on the partition plate (4), and one end of the V-shaped compensator (41) is tightly pressed and sealed with the sealing groove (51) in the sealing plate (5).

7. A forced smoke exhaust air heat exchanger according to claim 1 wherein: the inner walls of the header box (7) and the shell (1) are provided with a layer of heat insulation layer (14).

8. A forced smoke exhaust air heat exchanger according to claim 1 wherein: an inlet cavity (120) is formed in the smoke inlet end (12), an outlet cavity (130) is formed in the smoke outlet end (13), and the inlet cavity (120) and the outlet cavity (130) are communicated with the cavity (101) of the shell (1).

9. A forced smoke exhaust air heat exchanger according to claim 8 wherein: a connecting cavity (81) is arranged in the connecting three-way seat (8), and an outlet cavity (130) of the smoke outlet end (13) is communicated with the connecting cavity (81).