CN217503993U

CN217503993U - Air supply device applied to crevice heat exchange tube of hot-blast stove

Info

Publication number: CN217503993U
Application number: CN202221335046.5U
Authority: CN
Inventors: 赵丽娟; 程宇骁; 刘峰; 梁晓朋; 周博洋
Original assignee: Shaanxi Huantong Energy Technology Co ltd
Current assignee: Shaanxi Huantong Energy Technology Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-27
Anticipated expiration: 2032-05-31

Abstract

The utility model provides a be applied to air supply device of crevice heat exchange tube of hot-blast furnace, belong to hot-blast furnace corollary equipment field, including the hot-blast furnace main part, air compressor machine and the supply-air duct of setting between hot-blast furnace main part and air compressor machine, be equipped with the supply-air outlet in the hot-blast furnace main part, the supply-air duct includes first pipeline, the second pipeline of setting in the first pipeline outside, establish first inlet port on the second pipeline, the gas outlet intercommunication of first inlet port and air compressor machine, establish the sealing washer between first pipeline and the second pipeline, first pipeline both ends are equipped with hot air exitus and tube-shape dog respectively, tube-shape dog inner tube is equipped with cold wind export, hot air exitus and supply-air outlet intercommunication, establish the second inlet port on the first pipeline, the second inlet port setting is equipped with the toper dog in the first pipeline of hot air exitus one side between the sealing washer. Air is compressed by the air compressor and then is treated by the air supply pipeline, so that the initial temperature of the air entering the hot blast stove is increased, and the heat utilization rate of the device is increased.

Description

Air supply device applied to crevice heat exchange tube of hot blast stove

Technical Field

The utility model relates to a hot-blast furnace corollary equipment field, concretely relates to be applied to air feed device of crevice heat exchange tube of hot-blast furnace.

Background

The hot-blast furnace is with blast heating to the uniform temperature, for the heating installation that provides the environment that suits of production, it is multi-purpose in the chemical industry, the spraying, fields such as stoving heating, can divide into two kinds of heat accumulation formula heat transfer according to its theory of operation, the hot-blast furnace of heat transfer formula mainly uses high temperature resistant pottery heat transfer device as core component among the prior art, it is high to have a heat transfer temperature, the advantage that area is little, but its prevalence is not high, and most use the air-blower directly to let in the air-blast furnace with the air and carry out heat transfer treatment, the heat utilization ratio remains to be improved, for solving above-mentioned problem, now provide the air supply device who is applied to the clearance heat exchange tube of hot-blast furnace and solve this problem.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a be applied to air supply device of crack heat exchange tube of hot-blast furnace, accessible air compressor machine is handled through supply air duct after with air compression, and then improves the initial temperature that gets into gas in the hot-blast furnace, and then improves the heat utilization efficiency of device.

In order to solve the technical problem, the utility model provides a be applied to air feed device of crevice heat exchange tube of hot-blast furnace, its characterized in that: comprises a hot blast stove main body, an air compressor and an air supply pipeline arranged between the hot blast stove main body and the air compressor, the hot blast stove main body is provided with an air supply outlet, the air supply pipeline comprises a first pipeline and a second pipeline arranged outside the first pipeline, the second pipeline is provided with a first air inlet which is communicated with an air outlet of the air compressor in a matching way, sealing rings for sealing are symmetrically arranged between the first pipeline and the second pipeline, a hot air outlet and a cylindrical stop block are respectively arranged at two ends of the first pipeline, a cold air outlet is arranged on an inner cylinder of the cylindrical stop block, the hot air outlet is communicated with the air supply outlet in a matching way, a plurality of second air inlets are arranged on the first pipeline, the second air inlet is arranged between the sealing rings, and a conical stop block fixed on the first pipeline is arranged in the first pipeline on one side of the hot air outlet.

Furthermore, a gas pipe is arranged between the first gas inlet hole and the air compressor, one end of the gas pipe is connected with the first gas inlet hole in a matching mode, and the other end of the gas pipe is connected with a gas outlet of the air compressor in a matching mode.

Furthermore, the air supply outlet and the hot air outlet end of the first pipeline are respectively provided with a flange plate, and a rubber gasket is arranged between the flange plates.

Furthermore, the pipe diameter of one side of the hot air outlet is larger than that of one side of the cold air outlet, a plurality of supports for supporting the conical stop block 12 are arranged on the base surface of the conical stop block, and the supports are uniformly distributed on the base surface of the conical stop block.

Further, the outer base surface of the cylindrical stop block is fixedly connected with the inner base surface of the first pipeline.

Furthermore, the second air inlet holes are obliquely arranged and evenly and circumferentially distributed on the first pipeline body.

Further, the cold air outlet is provided with an arc-shaped bent pipe, and the arc-shaped bent pipe is communicated with the heat dissipation cabin of the air compressor.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

1. the air compressor is used for pressurizing the air, the air is rotated and rubbed at a high speed in the air supply pipeline when passing through the air supply pipeline, then a part of the air flows form cold air to enter the heat dissipation cabin, and the other part of the hot air flows enter the hot blast stove from the hot air outlet for heat exchange, so that the initial temperature of the air entering the hot blast stove is improved, and the heat utilization rate of the hot blast stove is increased.

2. The arc-shaped bent pipe is communicated with a heat dissipation cabin of the air compressor, and cold air flow formed by the cold air pipeline passes through the arc-shaped bent pipe to enter the heat dissipation cabin to perform heat dissipation treatment on the air compressor, so that energy consumed by the air compressor by using heat dissipation equipment is reduced.

3. The second air inlet hole which is obliquely arranged is tangentially arranged with the inner wall of the first pipeline, so that the gas enters the first pipeline under the action of high pressure and rotates at high speed to advance.

4. The air supply pipeline is made of steel, and no moving part is arranged in the pipeline, so that the abrasion of the device in the use process of the pipeline is reduced.

Drawings

FIG. 1 is a cross-sectional view of the main body of the air supply apparatus of the present invention applied to a crevice heat exchange tube of a hot air stove;

FIG. 2 is a sectional view of the hot air outlet of the present invention;

FIG. 3 is a sectional view of the cold air outlet of the present invention;

fig. 4 is an enlarged view of the structure a of the present invention.

1. A hot blast main body; 2. an air compressor; 3. an arc-shaped bent pipe; 4. an air supply outlet; 5. a first conduit; 6. a second conduit; 7. a first air intake hole; 8. a seal ring; 9. a hot air outlet; 10. a cold air outlet; 11. a second air intake hole; 12. a conical stopper; 13. a barrel-shaped stopper; 14. a gas delivery pipe; 15. a flange plate; 16. a rubber gasket; 17. and (3) a bracket.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present invention. It is to be understood that the embodiments described are some, not all embodiments of the invention. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

Example one

As shown in fig. 1-4:

the utility model provides a be applied to air feed device of crevice heat exchange tube of hot-blast furnace which characterized in that: the hot blast stove comprises a hot blast stove main body 1, an air compressor 2 and an air supply pipeline arranged between the hot blast stove main body 1 and the air compressor 2, wherein an air supply outlet 4 is arranged on the hot blast stove main body 1, the air supply pipeline comprises a first pipeline 5 and a second pipeline 6 arranged on the outer side of the first pipeline 5, a first air inlet 7 is arranged on the second pipeline 6, the first air inlet 7 is communicated with an air outlet of the air compressor 2 in a matching way, sealing rings 8 for sealing are symmetrically arranged between the first pipeline 5 and the second pipeline 6, a hot air outlet 9 and a cylindrical stop block 13 are respectively arranged at two ends of the first pipeline 5, a cold air outlet 10 is arranged on an inner cylinder of the cylindrical stop block 13, the hot air outlet 9 is communicated with the air supply outlet 4 in a matching way, a plurality of second air inlets 11 are arranged on the first pipeline 5, and the second air inlets 11 are arranged between the sealing rings 8, a conical stop block 12 fixed on the first pipeline 5 is arranged in the first pipeline 5 at one side of the hot air outlet 9.

Particularly, the blast pipe is suitable for the material and selects steel, the pipeline is inside not to set up any moving part, thereby reduce the device wearing and tearing in the pipeline use, the position deviation that the second air inlet set up is to cold wind export 10 one side, seal ring inner circle and the fixed welding setting of 5 outer walls of first pipeline, its outer lane and the welding setting of 6 inner walls of second pipeline, guarantee the pipeline seal nature, avoid leading to the blast pipe can not normal use because of the gas tightness, second inlet port 11 sets up with the tangent of 5 inner walls of first pipeline, and then make gas can advance at high-speed rotation after getting into in the first pipeline 5.

According to the utility model discloses an embodiment, as shown in fig. 1, first inlet port 7 with be equipped with gas-supply pipe 14 between the

air compressor machine

2, 14 one end of gas-supply pipe with 7 accordant connection of first inlet port, the other end with the gas outlet accordant connection of

air compressor machine

2, 14 both ends of gas-supply pipe should be equipped with airtight device, and then make gas normally get into the supply air duct, and the material that corresponding gas-supply pipe 14 was chosen should have compressive capacity.

According to the utility model discloses an embodiment, as shown in fig. 1, 4, supply-

air outlet

4 and 9 ends of first pipeline 5 hot air outlet are equipped with ring flange 15 respectively, be equipped with rubber packing ring 16 between the ring flange 15, use fastening bolt to fasten between the ring flange 15, rubber packing ring 16 sets up between fastening bolt and ring flange 15 inner circle, and then guarantees the gas tightness of device when using.

According to the utility model discloses an embodiment, as shown in fig. 1, the pipe diameter of hot air outlet 9 one side is greater than the pipe diameter of cold air outlet 10 one side, be equipped with on the 12 base planes of toper dog and be used for supporting its fixed a plurality of supports 17, support 17 evenly distributed is in the 12 base planes of toper dog, support 17 are equipped with four, and the 12 base planes of even array distribution toper dog.

According to an embodiment of the present invention, as shown in fig. 1, the outer base surface of the tube-shaped stopper 13 is fixedly connected to the inner base surface of the first pipe 5, so that the formed cold air flow can flow into the arc elbow 3 in the inner hole of the tube-shaped stopper 13.

According to the utility model discloses an embodiment, as shown in fig. 1, 3, second inlet port 11 slope sets up, and even circumference distributes on the 5 bodys of first pipeline, specifically is equipped with four second inlet ports 11, and with the tangent setting of 5 inner walls of first pipeline, guarantees that gaseous can high-speed rotatory the advancing inside getting into first pipeline 5.

According to the utility model discloses an embodiment, as shown in fig. 1, cold wind export 10 is equipped with arc return bend 3, arc return bend 3 with air compressor machine 2's heat dissipation cabin is linked together, and the cold air current that the cold air duct formed passes arc return bend 3 and gets into in the heat dissipation cabin, carries out the thermal treatment to air compressor machine 2.

The utility model discloses a use method:

when the air-cooled heat exchange furnace is used, air compressed by the air compressor passes through the air inlet hole in the second pipeline in the air delivery pipe to enter the second pipeline, the cavity formed by the first pipeline and the sealing gasket, further, the compressed air entering the cavity passes through the first air inlet hole in the first pipeline to enter the first pipeline, the air entering the first pipeline rotates and flows to the hot air outlet, part of air loses kinetic energy under the action of the conical baffle plate to form inner-layer air to flow to the cold air outlet, then the inner-layer air further enters the arc-shaped bent pipe to further cool the air compressor heat dissipation cabin, the temperature of air flow formed by the hot air outlet is increased, and the air flow further enters the hot air furnace to exchange heat.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a be applied to air feed device of crevice heat exchange tube of hot-blast furnace which characterized in that: comprises a hot blast stove main body (1), an air compressor (2) and an air supply pipeline arranged between the hot blast stove main body (1) and the air compressor (2), wherein an air supply outlet (4) is arranged on the hot blast stove main body (1), the air supply pipeline comprises a first pipeline (5) and a second pipeline (6) arranged on the outer side of the first pipeline (5), a first air inlet (7) is arranged on the second pipeline (6), the first air inlet (7) is communicated with an air outlet of the air compressor (2) in a matching way, a sealing ring (8) for sealing is symmetrically arranged between the first pipeline (5) and the second pipeline (6), a hot air outlet (9) and a tubular check block are respectively arranged at two ends of the first pipeline (5), an inner barrel-shaped check block (13) is provided with an inner barrel cold air outlet (10), and the hot air outlet (9) is communicated with the air supply outlet (4) in a matching way, the sealing ring is characterized in that a plurality of second air inlets (11) are formed in the first pipeline (5), the second air inlets (11) are arranged between the sealing rings (8), and a conical stop block (12) fixed on the first pipeline (5) is arranged in the first pipeline (5) on one side of the hot air outlet (9).

2. The air supply device of claim 1, which is applied to crevice heat exchange tubes of hot-air stoves, wherein: an air conveying pipe (14) is arranged between the first air inlet hole (7) and the air compressor (2), one end of the air conveying pipe (14) is connected with the first air inlet hole (7) in a matched mode, and the other end of the air conveying pipe is connected with an air outlet of the air compressor (2) in a matched mode.

3. The air supply device of claim 1, which is applied to crevice heat exchange tubes of hot-air stoves, wherein: and the ends of the air supply outlet (4) and the hot air outlet (9) of the first pipeline (5) are respectively provided with a flange plate (15), and a rubber gasket (16) is arranged between the flange plates (15).

4. The air supply device of claim 1, which is applied to crevice heat exchange tubes of hot-air stoves, wherein: the pipe diameter of one side of the hot air outlet (9) is larger than that of one side of the cold air outlet (10), a plurality of supports (17) for supporting the conical stop block (12) to be fixed are arranged on the base surface of the conical stop block (12), and the supports (17) are uniformly distributed on the base surface of the conical stop block (12).

5. The air supply device of claim 1, which is applied to crevice heat exchange tubes of hot-air stoves, wherein: the outer base surface of the cylindrical stop block (13) is fixedly connected with the inner base surface of the first pipeline (5).

6. The air supply device of claim 1, which is applied to crevice heat exchange tubes of hot-air stoves, wherein: the second air inlet holes (11) are obliquely arranged and evenly and circumferentially distributed on the pipe body of the first pipeline (5).

7. The air supply device of claim 1, which is applied to crevice heat exchange tubes of hot-air stoves, wherein: the cold air outlet (10) is provided with an arc-shaped bent pipe (3), and the arc-shaped bent pipe (3) is communicated with the heat dissipation cabin of the air compressor (2).