CN219829124U

CN219829124U - Preheating pipeline for hot blast stove

Info

Publication number: CN219829124U
Application number: CN202321186624.8U
Authority: CN
Inventors: 林海波; 汪杰; 王万年
Original assignee: Hefei Zhongxinwang Machinery Co ltd
Current assignee: Hefei Zhongxinwang Machinery Co ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-10-13
Anticipated expiration: 2033-05-17

Abstract

The utility model relates to the field of hot blast stoves and discloses a preheating pipeline for a hot blast stove, which comprises a hot blast stove body, a heat exchanger and a preheating stove, wherein an air inlet is formed in the side wall of the hot blast stove body, a hot air inlet is formed in the side wall of the preheating stove, a first preheating pipe is arranged between the air inlet and the hot air inlet, the heat exchanger is positioned between the hot blast stove body and the preheating stove, a second preheating pipe is arranged at the output end of the heat exchanger, and a three-way valve is arranged between the first preheating pipe and the second preheating pipe; according to the utility model, the three-way valve is arranged among the hot blast stove body, the heat exchanger and the preheating furnace, so that the effect of selecting different preheating temperatures according to different material requirements is achieved.

Description

Preheating pipeline for hot blast stove

Technical Field

The utility model relates to the field of hot blast stoves, in particular to a preheating pipeline for a hot blast stove.

Background

The hot blast stove is an updated product of an electric heat source and a traditional steam power heat source, the main principle is that hot air generated by burning fuel is led to materials, so that the materials are directly dried or baked, the hot air is taken as a medium and a carrier, the heat efficiency can be greatly improved, in order to further improve the working efficiency of the hot blast stove, the air temperature of the hot blast stove needs to be improved, the air in the hot blast stove is preheated by a common means, however, the preheating is also divided into low-temperature preheating and high-temperature preheating, the two preheating modes respectively correspond to different pipeline systems, one preheating mode is often adopted by the common hot blast stove, and the common hot blast stove is difficult to adapt to different preheating requirements of different materials;

in view of the above-mentioned related art, the inventor considers that the conventional hot blast stove preheating has the defect of single preheating mode, and that only one of the preheating modes can be selected for low-temperature preheating and high-temperature preheating, so a preheating pipeline for the hot blast stove is provided to solve the above-mentioned problems.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the utility model and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The utility model provides a preheating pipeline for a hot blast stove, which aims to solve the problem that a common hot blast stove is often single in preheating mode.

The preheating pipeline for the hot blast stove provided by the utility model adopts the following technical scheme:

the utility model provides a hot-blast furnace is with preheating pipeline, includes hot-blast furnace body, heat exchanger and preheating furnace, the air intake has been seted up to hot-blast furnace body lateral wall, the hot-blast mouth has been seted up to the preheating furnace lateral wall, install first preheating pipe between air intake and the hot-blast mouth, the heat exchanger is located between hot-blast furnace body and the preheating furnace, the second preheating pipe has been installed to the heat exchanger output, install the three-way valve between first preheating pipe and the second preheating pipe.

Preferably, the collecting pipe is installed to the heat exchanger input, the collecting pipe other end communicates with hot-blast furnace body top.

Preferably, the diameter of the first preheating pipe is the same as the diameter of the second preheating pipe.

Preferably, the three-way valve is an electric three-way valve.

Preferably, the three ports of the three-way valve correspond to two ends of the first preheating pipe and one end, far away from the heat exchanger, of the second preheating pipe respectively.

In summary, the utility model has the following beneficial technical effects:

the heat exchanger can collect waste heat in the hot blast stove so as to perform low-temperature preheating on the hot blast stove, the preheating furnace can perform high-temperature preheating on gas in the hot blast stove in a fuel burning mode, and the three-way valve can be selectively communicated with the first preheating pipe or the second preheating pipe; compared with the prior art, the hot blast stove has the effect of conveniently adjusting the preheating temperature, and can select low-temperature preheating or high-temperature preheating, so that the hot blast stove has more use scenes.

Drawings

FIG. 1 is a schematic view of the structure of a hot air furnace body, a heat exchanger and a preheating furnace in the embodiment of the application;

FIG. 2 is a schematic diagram of the first preheating pipe, the second preheating pipe and the three-way valve according to the embodiment of the present application;

FIG. 3 is a schematic diagram of the structure of the second preheating pipe and the collecting pipe according to the embodiment of the application.

Reference numerals illustrate: 1. a hot blast stove body; 2. a heat exchanger; 3. a preheating furnace; 4. an air inlet; 5. a hot air port; 6. a first preheating tube; 7. a second preheating tube; 8. a three-way valve; 9. and (5) collecting pipes.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-3.

The embodiment of the utility model discloses a preheating pipeline for a hot blast stove. Referring to fig. 1-3, a preheating pipeline for a hot blast stove comprises a hot blast stove body 1, a heat exchanger 2 and a preheating furnace 3, wherein an air inlet 4 is formed in the side wall of the hot blast stove body 1, a hot air outlet 5 is formed in the side wall of the preheating furnace 3, a first preheating pipe 6 is arranged between the air inlet 4 and the hot air outlet 5, the heat exchanger 2 is positioned between the hot blast stove body 1 and the preheating furnace 3, a collecting pipe 9 is arranged at the input end of the heat exchanger 2, the other end of the collecting pipe 9 is communicated with the top of the hot blast stove body 1, and the collecting pipe 9 can collect waste heat in the hot blast stove body 1 and reintroduce the waste heat into the hot blast stove body 1 through the heat exchanger 2 and a second preheating pipe 7, so that the preheating effect is achieved;

the output end of the heat exchanger 2 is provided with a second preheating pipe 7, the diameter of the first preheating pipe 6 is the same as that of the second preheating pipe 7, and the diameters of the first preheating pipe 6 and the second preheating pipe are the same, so that the hot air throughput of the two preheating modes is approximately the same, and the difference between the two preheating modes is only different in temperature;

a three-way valve 8 is arranged between the first preheating pipe 6 and the second preheating pipe 7, three ports of the three-way valve 8 correspond to two ends of the first preheating pipe 6 and one end of the second preheating pipe 7 far away from the heat exchanger 2 respectively, the three-way valve 8 is an electric three-way valve 8, and no matter the three-way valve is used for high-temperature preheating or low-temperature preheating, the three-way valve 8 is dangerous for workers, and therefore the safety of the workers in the process of switching the preheating modes is ensured by the electric three-way valve 8.

The last points to be described are: first, in the description of the present utility model, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a hot-blast furnace is with preheating pipe way, includes hot-blast furnace body (1), heat exchanger (2) and preheating furnace (3), its characterized in that: an air inlet (4) is formed in the side wall of the hot blast stove body (1), a hot air opening (5) is formed in the side wall of the preheating furnace (3), a first preheating pipe (6) is arranged between the air inlet (4) and the hot air opening (5), the heat exchanger (2) is located between the hot blast stove body (1) and the preheating furnace (3), a second preheating pipe (7) is arranged at the output end of the heat exchanger (2), and a three-way valve (8) is arranged between the first preheating pipe (6) and the second preheating pipe (7).

2. A preheating duct for a hot blast stove according to claim 1, characterized in that: the collecting pipe (9) is arranged at the input end of the heat exchanger (2), and the other end of the collecting pipe (9) is communicated with the top of the hot blast stove body (1).

3. A preheating duct for a hot blast stove according to claim 1, characterized in that: the diameter of the first preheating pipe (6) is the same as that of the second preheating pipe (7).

4. A preheating duct for a hot blast stove according to claim 1, characterized in that: the three-way valve (8) is an electric three-way valve.

5. A preheating duct for a hot blast stove according to claim 1, characterized in that: the three ports of the three-way valve (8) respectively correspond to the two ends of the first preheating pipe (6) and one end of the second preheating pipe (7) far away from the heat exchanger (2).