Steam generator of waste heat recovery equipment of wire rod heating furnace

Abstract

The utility model discloses a wire rod heating furnace waste heat recovery equipment steam generator, which relates to the technical field of waste heat recovery, and comprises a shell, an inner cavity of the shell is divided into an evaporation cavity, a heating cavity and an exhaust cavity, an evaporator body is arranged in the evaporation cavity, an economizer body is arranged in the heating cavity, and the right side of the shell is connected with a flue gas inlet. The flue gas inlet is communicated with the evaporation cavity, and the top of the shell is connected with a flue gas outlet. Flue gas enters the evaporator body, transversely washes the evaporator pipe set, then vertically rises through the tail of the evaporator body, enters the top smoke box in the heating cavity, then vertically and transversely washes the economizer body downwards, and then the flue gas turns at the bottom of the economizer body and then enters the rising smoke box. According to the steam generator, a natural circulation mode is adopted, open-air horizontal air inlet and vertical upward exhaust arrangement are adopted, the structure is compact, the overall size is small, and the occupied area is small.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, and particularly relates to a steam generator for waste heat recovery equipment of a wire heating furnace. Background Technique

[0002] In industrial production, various heating furnaces, incinerators, smelting furnaces, etc. will generate a large amount of waste gas. These waste gases contain a large amount of heat, and the waste heat can be recovered to generate steam for production, life use or power generation. Currently, there are mainly two types of steam generating devices on the market. One is a boiler, and the other is a small steam generator. However, the small steam generator in industrial production currently has a relatively complex structure, resulting in a relatively large overall volume, occupying a large amount of floor space and being inconvenient to use. Therefore, a steam generator is needed to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a steam generator for waste heat recovery equipment of a wire heating furnace to solve the problems raised in the above background technique.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0005] The steam generator for waste heat recovery equipment of a wire heating furnace includes a housing. The inner cavity of the housing is partitioned into an evaporation chamber, a heating chamber and an exhaust chamber. An evaporator body is arranged inside the evaporation chamber, and a economizer body is arranged inside the heating chamber. A flue gas inlet is connected to the right side of the housing, and the flue gas inlet communicates with the evaporation chamber. A flue gas outlet is connected to the top of the housing, and the flue gas outlet communicates with the exhaust chamber. The top side of the evaporation chamber communicates with the heating chamber, and the bottom side of the heating chamber communicates with the exhaust chamber.

[0006] Preferably, a top smoke box is connected to the top of the economizer body, and an upper sealing plate is connected to the outside of the top smoke box. The side of the upper sealing plate is connected to the inner wall of the heating chamber. To ensure the tightness at the top of the heating chamber and facilitate the vertical downward passage of flue gas through the top smoke box and the economizer body.

[0007] Preferably, a rising smoke box is arranged inside the exhaust chamber, and the top of the rising smoke box communicates with the flue gas outlet. To promote the discharge of flue gas from the steam generator through the rising smoke box and the flue gas outlet.

[0008] Preferably, a lower sealing plate is connected to the outside of the bottom of the rising smoke box, and the side of the lower sealing plate is connected to the inner wall of the exhaust chamber. To ensure the tightness at the bottom of the exhaust chamber and facilitate the vertical upward discharge of flue gas through the bottom of the rising smoke box.

[0009] Preferably, a soot blower interface is provided at the top of the housing, and the soot blower interface is located above the top smoke box, for connecting existing external soot blower equipment.

[0010] Preferably, a steam collector body is provided in the evaporation chamber, and the steam collector body is arranged at the top of the evaporator body, for collecting the steam heated by the evaporator body through the steam collector body.

[0011] Preferably, the interiors of the evaporator body and the economizer body both adopt a structure of in-line arranged spiral finned tubes, which is convenient for the flue gas to flow across the evaporator tube bank and the economizer tube bank horizontally.

[0012] Preferably, a water pipe group is provided on the left side of the housing, and the water pipe group is communicated with the evaporator body and the economizer body, for water resources to enter the evaporator body and the economizer body.

[0013] Preferably, a steam pipe group is provided at the top of the housing, and the steam pipe group is connected to the steam collector body. After the steam is concentrated through the steam collector body, the generated steam is supplied for production, life use or power generation through the steam pipe group, reducing resource waste.

[0014] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0015] 1. The present utility model provides a steam generator for a wire heating furnace waste heat recovery device, to solve the problems of the existing structure being relatively complex, the overall volume being relatively large, and occupying a large amount of area space. The flue gas enters the evaporator body from the flue gas inlet and flows across the evaporator tube bank horizontally, then vertically rises in the evaporation chamber at the tail of the evaporator body and enters the top smoke box in the heating chamber. Subsequently, it vertically descends and flows across the economizer tube bank of the economizer body horizontally in the top smoke box. Then, the flue gas turns at the bottom of the economizer body and enters the rising smoke box, and then is discharged from the evaporator module through the flue gas outlet. This steam generator adopts a natural circulation method, with an open horizontal inlet and a vertical upward exhaust arrangement, having a compact structure, a relatively small overall volume, and a small floor area. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic top view structure diagram of the present utility model;

[0018] Figure 3 is a schematic front sectional view structure diagram of the present utility model;

[0019] Figure 4 is a schematic left sectional view structure diagram of the present utility model;

[0020] Figure 5 This is a schematic top cross-sectional structure diagram of the present utility model.

[0021] In the figure: 1. Housing; 11. Evaporation chamber; 12. Heating chamber; 13. Exhaust chamber;

[0022] 2. Flue gas inlet; 3. Evaporator body; 4. Top smoke box; 5. Economizer body; 6. Flue gas outlet; 7. Rising smoke box; 8. Soot blower interface; 9. Steam collector body; 10. Water pipe group; 101. Steam pipe group. Specific embodiments

[0023] The following further describes the present utility model in detail with reference to embodiments:

[0024] As Figures 1-5 shown, the present utility model provides a steam generator for waste heat recovery equipment of a wire heating furnace, including a housing 1. The inner cavity of the housing 1 is partitioned into an evaporation chamber 11, a heating chamber 12, and an exhaust chamber 13. An evaporator body 3 is arranged inside the evaporation chamber 11, and an economizer body 5 is arranged inside the heating chamber 12. A flue gas inlet 2 is connected to the right side of the housing 1, and the flue gas inlet 2 communicates with the evaporation chamber 11. A flue gas outlet 6 is connected to the top of the housing 1, and the flue gas outlet 6 communicates with the exhaust chamber 13. The top side of the evaporation chamber 11 communicates with the heating chamber 12, and the bottom side of the heating chamber 12 communicates with the exhaust chamber 13.

[0025] Furthermore, the inside of both the evaporator body 3 and the economizer body 5 adopts a staggered arrangement of spiral finned tube structures, which is convenient for the flue gas to flow horizontally across the evaporator tube group and the economizer tube group.

[0026] As Figure 4 shown, a top smoke box 4 is connected to the top of the economizer body 5. An upper sealing plate is connected to the outside of the top smoke box 4, and the side of the upper sealing plate is connected to the inner wall of the heating chamber 12. The sealing performance at the top of the heating chamber 12 is beneficial for the flue gas to pass vertically downward through the top smoke box 4 and the economizer body 5. An ascending smoke box 7 is arranged inside the exhaust chamber 13. The top of the ascending smoke box 7 communicates with the flue gas outlet 6. A lower sealing plate is connected to the outside of the bottom of the ascending smoke box 7, and the side of the lower sealing plate is connected to the inner wall of the exhaust chamber 13. The sealing performance at the bottom of the exhaust chamber 13 is beneficial for the flue gas to be discharged vertically upward through the bottom of the ascending smoke box 7.

[0027] Furthermore, a soot blower interface 8 is opened at the top of the housing 1. The soot blower interface 8 is located above the top smoke box 4 and is used to connect to an existing external acoustic soot blower device. The acoustic soot blower technology converts compressed air (or steam) into high-power sound waves or infrasound waves (a pressure wave that propagates in a spatial medium (gas) in the form of a density wave) and sends them into the generator. When the ash deposited on the heated surface is repeatedly pulled and pressed by the density waves that alternate at a certain frequency, it loosens and falls off due to fatigue and is carried away by the flue gas flow.

[0028] As shown Figures 1-5 in the figure, a steam collector body 9 is provided in an evaporation chamber 11. The steam collector body 9 is arranged at the top of an evaporator body 3. A water pipe group 10 is provided on the left side of a housing 1. The water pipe group 10 is communicated with the evaporator body 3 and a economizer body 5. A steam pipe group 101 is provided on the top of the housing 1. The steam pipe group 101 is connected to the steam collector body 9.

[0029] Furthermore, the steam collector body 9 is used for storing steam, while the water pipe group 10 promotes water to enter the economizer body 5 and the evaporator body 3. After the evaporator body 3 is heated, the water becomes a steam-water mixture and enters the steam collector body 9. Then, after the steam is concentrated by the steam collector body 9, the generated steam is supplied for production, life use or power generation through the steam pipe group 101, reducing resource waste.

[0030] Next, the working principle of this high-solid-waste brine filtration device will be specifically described.

[0031] As shown Figures 1-5 in the figure, this steam generator adopts a natural circulation mode. Flue gas enters the evaporator body 3 through a flue gas inlet 2 and laterally flushes an evaporator tube group. Then, it vertically rises in the evaporation chamber 11 at the tail of the evaporator body 3 and enters a top smoke box 4 in a heating chamber 12. Subsequently, it vertically descends and laterally flushes an economizer tube group of the economizer body 5 in the top smoke box 4. Then, the flue gas makes a 180° turn at the bottom of the economizer body 5 and enters a rising smoke box 7. Subsequently, it is discharged from the evaporator module through a flue gas outlet 6. This steam generator adopts a natural circulation mode, with open-air horizontal intake and vertical upward exhaust arrangement, featuring a compact structure, a relatively small overall volume, and a small floor area.

[0032] It should be noted that in the description of the present disclosure, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0033] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A steam generator for waste heat recovery equipment of a wire heating furnace, characterized in that: It includes a shell, the inner cavity of the shell is divided into an evaporation chamber, a heating chamber and an exhaust chamber, the evaporator body is arranged inside the evaporation chamber, the economizer body is arranged inside the heating chamber, and the right side of the shell is connected to a flue gas inlet, the flue gas inlet is communicated with the evaporation chamber, and the top of the shell is connected to a flue gas outlet, the flue gas outlet is communicated with the exhaust chamber, the top side of the evaporation chamber is communicated with the heating chamber, and the bottom side of the heating chamber is communicated with the exhaust chamber.

2. The steam generator for waste heat recovery equipment of wire heating furnace according to claim 1, characterized in that: The top of the economizer body is connected to a top smoke box, the outer side of the top smoke box is connected to an upper sealing plate, and the side of the upper sealing plate is connected to the inner wall of the heating chamber.

3. The steam generator for waste heat recovery equipment of wire heating furnace according to claim 2, characterized in that: A rising smoke box is arranged inside the exhaust cavity, and the top of the rising smoke box is connected to the smoke outlet.

4. The steam generator for waste heat recovery equipment of wire heating furnace according to claim 3, characterized in that: The outer side of the bottom of the ascending smoke box is connected with a lower sealing plate, and the side of the lower sealing plate is connected to the inner wall of the exhaust cavity.

5. The steam generator for waste heat recovery equipment of wire heating furnace according to claim 1, characterized in that: A soot blower interface is provided on the top of the shell body, and the soot blower interface is located above the top smoke box.

6. The steam generator for waste heat recovery equipment of wire heating furnace according to claim 1, characterized in that: A steam collector body is arranged in the evaporation chamber, and the steam collector body is arranged on the top of the evaporator body.

7. The steam generator for waste heat recovery equipment of wire heating furnace according to claim 1, characterized in that: The interiors of the evaporator body and the economizer body both adopt a spiral fin tube structure arranged in series.

8. The steam generator for waste heat recovery equipment of wire heating furnace according to claim 1, characterized in that: A water pipe group is provided on the left side of the shell, and the water pipe group is connected to the evaporator body and the economizer body.

9. The steam generator for waste heat recovery equipment of wire heating furnace according to claim 6, characterized in that: A steam pipe group is provided on the top of the shell, and the steam pipe group is connected to the steam collector body.

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