Flow-around type vertical waste heat boiler

Abstract

The utility model discloses a streaming type vertical waste heat boiler which comprises a boiler shell, a streaming smoke box, a heat exchange tube, a first connecting box body, a smoke inlet, a first boiler barrel end socket, a sewage draining exit, an ash cleaning inspection opening and a smoke outlet, the boiler shell is fixedly connected with the streaming smoke box, the streaming smoke box is fixedly connected with the heat exchange tube, and the heat exchange tube is fixedly connected with the first connecting box body. The streaming smoke box is fixedly connected to the first connecting box body, a smoke inlet is fixedly connected to the first connecting box body, a first boiler barrel end socket is fixedly connected to the first connecting box body, and a sewage draining exit is fixedly connected to the first boiler barrel end socket; the streaming smoke box is fixedly connected to the steam-water separator; according to the utility model, through the use of the streaming smoke box and the heat exchange pipe and the special bent pipe angle structure of the heat exchange pipe, the treatment stability during smoke heat exchange is improved to a certain extent, and the heat exchange efficiency is increased; all the streaming smoke boxes can be detached for maintenance, the structure is simple, and maintenance is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat boilers, in particular to a bypass type vertical waste heat boiler. Background Art

[0002] Waste heat flue gas in industries such as chemical smelting waste incineration treatment, waste liquid and waste gas incineration treatment will contain a large amount of harmful and corrosive chemical components. In addition, since the waste heat flue gas contains a certain amount of water vapor, it is very easy to form acidic and harmful substances, which will cause corrosion to the recovery equipment. In the existing waste heat recovery technology, in the design of vertical waste heat boilers, water pipes and fire pipes are usually used, and some heat pipes are used. However, the existing vertical waste heat boilers are in an unstable state because the load is sometimes high and sometimes low during operation. The water pipes are easily scaled due to the unstable water quality treatment, and the heat exchange cycle efficiency is insufficient. Secondly, the structure of the existing vertical waste heat boilers is relatively complex and maintenance is not convenient enough. Therefore, it is very necessary to design a bypass type vertical waste heat boiler. Utility Model Content

[0003] The purpose of the utility model is to provide a bypass type vertical waste heat boiler to solve the problems of the existing vertical waste heat boiler, which is that the waste heat boiler is sometimes in a large load and sometimes in a small load during operation, and is always in an unstable state, which will cause scaling inside the water pipe due to unstable water quality treatment, insufficient heat exchange cycle efficiency, and a relatively complex structure, which is not convenient for maintenance.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a bypass type vertical waste heat boiler, comprising a boiler shell, a bypass smoke box, a heat exchange pipe, a first connecting box, a flue gas inlet, a first drum head, a sewage outlet, an ash cleaning inspection port, a flue gas outlet and a water separator, wherein the boiler shell is fixedly connected to the bypass smoke box, the bypass smoke box is fixedly connected to the heat exchange pipe, the bypass smoke box is fixedly connected to the first connecting box, the flue gas inlet is fixedly connected to the first connecting box, the first drum head is fixedly connected to the sewage outlet, the bypass smoke box is fixedly connected to the ash cleaning inspection port, the bypass smoke box is fixedly connected to the flue gas outlet, and the bypass smoke box is fixedly connected to the steam-water separator.

[0005] As a further technical solution of the present invention, the steam-water separator is fixedly connected to the second connecting box body, the second connecting box body is fixedly connected to the second drum head, and the second drum head is fixedly connected to the safety valve.

[0006] As a further technical solution of the present invention, the second boiler drum head is fixedly connected to a main steam valve, the second boiler drum head is fixedly connected to a pressure pipe, the pressure pipe is fixedly connected to a pressure instrument, and the second boiler drum head is fixedly connected to an auxiliary gas valve.

[0007] As a further technical solution of the present invention, a water level gauge is fixedly connected to the boiler shell.

[0008] As a further technical solution of the present invention, the water level gauge is fixedly connected to the second connecting box, and the second connecting box is fixedly connected to the bypass smoke box.

[0009] As a further technical solution of the present invention, a water inlet is fixedly connected to the boiler shell.

[0010] As a further technical solution of the present invention, a support seat is fixedly connected to the first drum head.

[0011] The utility model provides a bypass type vertical waste heat boiler, which has the advantages of allowing flue gas to enter through the flue gas inlet and transporting condensed water to the heat exchange tube through the water supply port, and installing a required number of bypass smoke boxes according to specific requirements. The incoming flue gas passes through the heat exchange tube and is discharged through the flue gas outlet after heat exchange, and the dirty substances after the heat exchange are discharged through the sewage outlet. Through the use of the bypass smoke box and the heat exchange tube, and the special bend angle structure of the heat exchange tube, the processing stability of the flue gas during heat exchange is improved to a certain extent, and the heat exchange efficiency is increased; the interior of the machine can be observed through the dust cleaning inspection port, and the bypass smoke boxes can be disassembled for maintenance in case of abnormality. The structure is relatively simple and the maintenance is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a front view structural diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the front cross-sectional structure of the present utility model.

[0016] In the figure: 1. Boiler shell; 2. Circulation smoke box; 3. Heat exchange tube; 4. First connecting box; 5. Flue gas inlet; 6. First drum head; 7. Sewage outlet; 8. Ash cleaning inspection port; 9. Flue gas outlet; 10. Steam-water separator; 11. Second connecting box; 12. Second drum head; 13. Safety valve; 14. Main steam valve; 15. Pressure pipe; 16. Auxiliary gas valve; 17. Water level gauge; 18. Water supply port; 19. Support seat; 20. Pressure instrument. DETAILED DESCRIPTION

[0017] Please see the attached Figure 1-3 , the utility model provides an embodiment: a bypass type vertical waste heat boiler, including a boiler shell 1, a bypass smoke box 2, a heat exchange tube 3, a first connecting box body 4, a flue gas inlet 5, a first drum head 6, a sewage outlet 7, an ash cleaning inspection port 8 and a flue gas outlet 9, the boiler shell 1 is fixedly connected with the bypass smoke box 2, the bypass smoke box 2 is fixedly connected with the heat exchange tube 3, the bypass smoke box 2 is fixedly connected to the first connecting box body 4, the first connecting box body 4 is fixedly connected with the flue gas inlet 5, the first connecting box body 4 is fixedly connected with the first drum head 6, the sewage outlet 7 is fixedly connected with the first drum head 6, the bypass smoke box 2 is fixedly connected with the ash cleaning inspection port 8, the bypass smoke box 2 is fixedly connected with the flue gas outlet 9, the bypass smoke box 2 is fixedly connected to the steam-water separator 10, and the steam-water separator 10 is fixedly connected On the second connecting box 11, a second boiler drum head 12 is fixedly connected to the second connecting box 11, a safety valve 13 is fixedly connected to the second boiler drum head 12, a main steam valve 14 is fixedly connected to the second boiler drum head 12, a pressure pipe 15 is fixedly connected to the second boiler drum head 12, a pressure instrument 20 is fixedly connected to the pressure pipe 15, an auxiliary gas valve 16 is fixedly connected to the second boiler drum head 12, a water level gauge 17 is fixedly connected to the boiler shell 1, the water level gauge 17 is fixedly connected to the second connecting box 11, the second connecting box 11 is fixedly connected to the bypass smoke box 2, a water supply port 18 is fixedly connected to the boiler shell 1, the water supply port 18 is used to supply water to the heat exchange tube 3, and a support base 19 is fixedly connected to the first boiler drum head 6, the support base 19 is used to provide support for the first boiler drum head 6;

[0018] Specifically, when in use, first, let the flue gas enter through the flue gas inlet 5, and transport condensed water to the heat exchange tube 3 through the water supply port 18, and install the required number of bypass smoke boxes 2 according to specific requirements. The incoming flue gas passes through the heat exchange tube 3, and after heat exchange, it is discharged through the flue gas outlet 9. The dirty substances after the heat exchange are discharged through the sewage outlet 7. Through the use of the bypass smoke box 2 and the heat exchange tube 3, and the special bend angle structure of the heat exchange tube 3, the processing stability of the flue gas heat exchange is improved to a certain extent, and the heat exchange efficiency is increased; the inside of the machine is observed through the dust cleaning inspection port 8, and when there is an abnormality, each bypass smoke box 2 can be disassembled for maintenance. The structure is relatively simple and maintenance is also relatively convenient.

Claims

1. A vertical waste heat boiler with a bypass flow, comprising a boiler shell (1), a bypass smoke box (2), a heat exchange tube (3), a first connecting box (4), a flue gas inlet (5), a first drum head (6), a sewage outlet (7), a ash cleaning inspection port (8) and a flue gas outlet (9), characterized in that: The boiler shell (1) is fixedly connected to a flow-through smoke box (2), a heat exchange tube (3) is fixedly connected to the flow-through smoke box (2), the flow-through smoke box (2) is fixedly connected to a first connection box body (4), a flue gas inlet (5) is fixedly connected to the first connection box body (4), a first boiler drum head (6) is fixedly connected to the first connection box body (4), a sewage outlet (7) is fixedly connected to the first boiler drum head (6), an ash cleaning inspection port (8) is fixedly connected to the flow-through smoke box (2), a flue gas outlet (9) is fixedly connected to the flow-through smoke box (2), and the flow-through smoke box (2) is fixedly connected to a steam-water separator (10).

2. The vertical waste heat boiler according to claim 1, characterized in that: The steam-water separator (10) is fixedly connected to the second connecting box (11), the second connecting box (11) is fixedly connected to the second boiler drum head (12), and the second boiler drum head (12) is fixedly connected to the safety valve (13).

3. The vertical waste heat boiler according to claim 2, characterized in that: A main steam valve (14) is fixedly connected to the second drum head (12), a pressure pipe (15) is fixedly connected to the second drum head (12), a pressure instrument (20) is fixedly connected to the pressure pipe (15), and an auxiliary gas valve (16) is fixedly connected to the second drum head (12).

4. The vertical waste heat boiler according to claim 1, characterized in that: A water level gauge (17) is fixedly connected to the boiler housing (1).

5. The vertical waste heat boiler according to claim 4, characterized in that: The water level gauge (17) is fixedly connected to the second connecting box (11), and the second connecting box (11) is fixedly connected to the bypass smoke box (2).

6. The vertical waste heat boiler according to claim 4, characterized in that: A water inlet (18) is fixedly connected to the boiler housing (1).

7. The vertical waste heat boiler according to claim 1, characterized in that: A support seat (19) is fixedly connected to the first drum head (6).

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