Hot-blast stove heat exchanger pipeline arrangement structure

Abstract

The utility model discloses a hot-blast stove heat exchanger pipeline arrangement structure, which relates to the technical field of hot-blast stoves, and comprises a heating unit, a fire inlet chamber, a heat insulation cover fixedly connected with the fire inlet chamber, and a reinforcing unit, which comprises a lifting assembly arranged on the side wall of the heating unit. The smoke exhaust device has the advantages that the flow speed of air around the smoke exhaust pipe is increased through the fan, then the height of flames in the heat exchange pipeline is increased through the chimney effect, and therefore it is guaranteed that the flames can completely heat the whole heat exchange pipeline, the temperature of the heat exchange pipeline is increased, the heat exchange effect of the heat exchange pipeline is improved, and the service life of the heat exchange pipeline is prolonged. Meanwhile, the fins are additionally arranged, the contact area of cold air and the heat exchange pipeline is increased, the heat exchange pipeline is divided into two channels through the heat preservation plate, heat exchange can be conducted on the cold air in the two channels at the same time, and then the heat exchange efficiency of the heat exchange pipeline is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of hot blast stove technology, and in particular to a hot blast stove heat exchanger pipe arrangement structure. Background Technology

[0002] Hot air furnaces are thermal power machinery that have become a replacement for electric heat sources and traditional steam power sources in many industries. There are many types and series of hot air furnaces, which are divided into hand-fired and machine-fired types according to the coal feeding method, and into coal, oil, and gas furnaces according to the type of fuel.

[0003] The hot blast furnace has a heat exchanger inside, but most of the heat exchange pipes in the current heat exchangers have smooth outer surfaces, which results in a small contact area between the cold air and the heat exchange pipes during heat exchange. In addition, the height of the flame inside the pipes is mostly random, which makes it easy for the temperature at the upper end of the heat exchange pipe to be lower than that at the lower end, thereby reducing the overall heat exchange effect and efficiency of the heat exchanger. To address this, a heat exchanger pipe arrangement structure for a hot blast furnace is provided. Utility Model Content

[0004] In view of the above-mentioned problems in the prior art, this utility model is proposed.

[0005] The purpose of this utility model is to provide a pipe arrangement structure for a hot air furnace heat exchanger, which aims to solve the problem that in the prior art, the flame height in the heat exchange tubes of the heat exchanger is mostly random, which easily leads to the temperature at the upper end of the heat exchange tube being lower than the temperature at the lower end, thus reducing the heat exchange efficiency of the heat exchanger.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a hot air furnace heat exchanger pipe arrangement structure, a heating unit including an inlet chamber and an insulation cover fixedly connected to the inlet chamber, and an exhaust chamber fixedly connected to the upper surface of the insulation cover, wherein an exhaust pipe is installed on the upper surface of the exhaust chamber, and an inlet is provided on the side wall of the inlet chamber; and a reinforcing unit including a lifting component provided on the side wall of the heating unit.

[0007] As a preferred embodiment of the hot air furnace heat exchanger pipe arrangement structure of this utility model, the lifting assembly includes a mounting plate whose side wall is fixedly connected to the flue gas chamber, a fan fixedly installed on the side wall of the mounting plate, and an arc-shaped seat fixedly installed on the bottom surface of the fire inlet chamber.

[0008] As a preferred embodiment of the hot air furnace heat exchanger pipe arrangement structure of this utility model, a rotating rod is fixedly installed on the rotating shaft of the fan, and one end of the rotating rod extends into the interior of the flue gas chamber.

[0009] As a preferred embodiment of the hot air furnace heat exchanger pipe arrangement structure of this utility model, one end of the rotating rod is rotatably connected to the inner wall of the flue gas chamber, and blades are fixedly installed on the outer surface of the rotating rod.

[0010] As a preferred embodiment of the hot air furnace heat exchanger pipe arrangement structure of this utility model, the blades are fixed in a spiral shape on the outer surface of the rotating rod, and the air outlet of the fan is in the same direction as the smoke outlet of the exhaust pipe.

[0011] As a preferred embodiment of the hot air furnace heat exchanger pipe arrangement structure of this utility model, the heat exchange unit includes a plurality of heat exchange pipes connected to the upper surface of the fire inlet chamber, the other end of the plurality of heat exchange pipes connected to the lower surface of the smoke exhaust chamber, and a cold air pipe and a hot air pipe connected to the side wall of the insulation cover.

[0012] As a preferred embodiment of the hot air furnace heat exchanger pipe arrangement structure of this utility model, the heat exchange unit further includes an insulation plate whose two ends are fixedly connected to the upper surface of the fire inlet chamber and the lower surface of the smoke exhaust chamber, respectively, and fins whose side walls are fixedly connected to the heat exchange pipe.

[0013] As a preferred embodiment of the hot air furnace heat exchanger pipe arrangement structure of this utility model, the insulation plate is fixedly installed between two heat exchange pipes, and the installation of the insulation plate makes the heat exchange pipes form a one-way channel.

[0014] As a preferred embodiment of the hot air furnace heat exchanger pipe arrangement structure of this utility model, the fins are configured with double bevels and are distributed in a cross pattern.

[0015] As a preferred embodiment of the hot air furnace heat exchanger pipe arrangement structure of this utility model, the cold air pipe is configured as a bend, and the hot air pipe is configured as a straight pipe.

[0016] The beneficial effects of the hot air furnace heat exchanger pipe arrangement structure of this utility model are as follows: the air velocity around the exhaust pipe is increased by using a fan, and the height of the flame inside the heat exchange pipe is increased by using the chimney effect, thereby ensuring that the flame can completely heat the entire heat exchange pipe, thereby increasing the temperature of the heat exchange pipe itself and thus improving the heat exchange effect of the heat exchange pipe. At the same time, by adding fins, the contact area between the cold air and the heat exchange pipe is increased, and the insulation plate divides the heat exchange pipe into two channels, allowing the cold air in the two channels to exchange heat simultaneously, thereby effectively improving the heat exchange efficiency of the heat exchange pipe. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the pipe arrangement structure of a hot air furnace heat exchanger according to the present invention.

[0019] Figure 2 This is an exploded structural diagram of the pipe arrangement structure of a hot air furnace heat exchanger according to the present invention.

[0020] Figure 3 This is a cross-sectional view of the pipe arrangement structure of a hot air furnace heat exchanger according to the present invention from the first angle.

[0021] Figure 4 This is a cross-sectional view of the pipe arrangement structure of a hot air furnace heat exchanger according to the present invention from a second angle.

[0022] Figure 5 This is a cross-sectional view of the pipe arrangement structure of a hot air furnace heat exchanger according to the present invention from the third angle. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments. Example 1

[0026] Reference Figure 3 This is the first embodiment of the present invention, which provides a hot air furnace heat exchanger pipe arrangement structure, including a heating unit 1 and a reinforcing unit 2.

[0027] Specifically, the heating unit 1 includes a fire inlet chamber 101 and a heat insulation cover 102 fixedly connected to the fire inlet chamber 101, and a smoke exhaust chamber 103 fixedly connected to the upper surface of the heat insulation cover 102. A smoke exhaust pipe 104 is installed on the upper surface of the smoke exhaust chamber 103, and a fire inlet 105 is provided on the side wall of the fire inlet chamber 101; and the reinforcing unit 2 includes a lifting assembly 201 provided on the side wall of the heating unit 1.

[0028] In use, the flame in the combustion chamber of the hot air furnace enters the inlet chamber 101 through the inlet 105. After passing through the heat exchange unit 3, the flame enters the exhaust chamber 103 and is then discharged through the exhaust pipe 104. When heating the heat exchange unit 3, the fan 2001 operates, and the generated wind increases the air velocity around the exhaust pipe 104. At the same time, when the fan 2001 operates, it also drives the rotating rod 2003 to rotate. The rotating rod 2003 drives the blades 2004 to rotate, and the rotation of the blades 2004 increases the flame height in the heat exchange unit 3.

[0029] In summary, this device improves the chimney effect of the exhaust pipe 104 by setting up the reinforcing unit 2 and increasing the air velocity around the exhaust pipe 104. Then, the wind speed generated by the rotation of the blades 2004 increases the overall height of the flame in the heat exchange unit 3, thereby improving the heating efficiency of the heat exchange unit 3.

[0030] Furthermore, it also includes the specific structures of heating unit 1, reinforcing unit 2, and heat exchange unit 3.

[0031] Specifically, the heating unit 1 includes a fire inlet chamber 101 and a heat insulation cover 102 fixedly connected to the fire inlet chamber 101, and a smoke exhaust chamber 103 fixedly connected to the upper surface of the heat insulation cover 102. A smoke exhaust pipe 104 is installed on the upper surface of the smoke exhaust chamber 103, and a fire inlet 105 is provided on the side wall of the fire inlet chamber 101; and...

[0032] The reinforcing unit 2 includes a lifting component 201 disposed on the side wall of the heating unit 1.

[0033] Furthermore, the lifting assembly 201 includes a mounting plate 2002 fixedly connected to the side wall of the smoke exhaust chamber 103, a fan 2001 fixedly mounted on the side wall of the mounting plate 2002, and an arc-shaped seat 2005 fixedly mounted to the bottom surface of the fire inlet chamber 101.

[0034] It should be noted that the arc-shaped surface of the arc-shaped seat 2005 corresponds to the fire inlet 105. Under the action of the arc-shaped seat 2005, the flame is concentrated upward, reducing the dispersion of the flame.

[0035] Furthermore, a rotating rod 2003 is fixedly installed on the rotating shaft of the fan 2001, and one end of the rotating rod 2003 extends into the interior of the smoke exhaust chamber 103.

[0036] Furthermore, one end of the rotating rod 2003 is rotatably connected to the inner wall of the smoke exhaust chamber 103, and blades 2004 are fixedly installed on the outer surface of the rotating rod 2003.

[0037] Furthermore, the blades 2004 are fixed in a spiral shape on the outer surface of the rotating rod 2003, and the air outlet of the fan 2001 is in the same direction as the smoke outlet of the smoke exhaust pipe 104.

[0038] Furthermore, the heat exchange unit 3 includes several heat exchange pipes 301 connected to the upper surface of the fire inlet chamber 101, the other end of the several heat exchange pipes 301 connected to the lower surface of the smoke exhaust chamber 103, and cold air pipes 304 and hot air pipes 305 connected to the side wall of the insulation cover 102. The heat exchange unit 3 also includes an insulation plate 302 with both ends fixedly connected to the upper surface of the fire inlet chamber 101 and the lower surface of the smoke exhaust chamber 103 respectively, and fins 303 fixedly connected to the side wall of the heat exchange pipes 301. The insulation plate 302 is fixedly installed between two heat exchange pipes 301, and the installation of the insulation plate 302 makes the heat exchange pipes 301 form a one-way channel.

[0039] Preferably, the fins 303 are double-sloped and arranged in a cross pattern, the cold air duct 304 is a bent duct and the hot air duct 305 is a straight duct.

[0040] The flame in the fire chamber 101 enters the heat exchange pipe 301 under the action of the arc seat 2005. Under the action of the reinforcing unit 2, the flame fills the entire heat exchange pipe 301. At this time, the flame heats the heat exchange pipe 301. Since the insulation plate 302 and fins 303 are in contact with the heat exchange pipe 301, the insulation plate 302 and fins 303 themselves also have a high temperature. Then, cold air is injected into the heat exchange pipe 301 through the cold air pipe 304. The cold air will come into contact with the outer surface of the fins 303 and the heat exchange pipe 301, thereby heating the cold air. The heated cold air is discharged through the hot air pipe 305.

[0041] Operation process: Connect the inlet 105 to the combustion chamber outlet of the hot air furnace. As the flame burns in the hot air furnace, part of the flame will enter the heating unit 1 through the inlet 105. When the flame flows in the heating unit, it will pass through the heat exchange unit 3.

[0042] Finally, during the heat exchange process, the strengthening unit 2 operates to enhance the flame of the heating unit 1.

[0043] In summary, strengthening unit 2 can improve the overall heating intensity of heating unit 1, thus ensuring the heat exchange effect and efficiency of heat exchange unit 3.

[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A pipe arrangement structure for a hot blast stove heat exchanger, characterized in that: include, The heating unit (1) includes a fire inlet chamber (101) and a heat insulation cover (102) fixedly connected to the fire inlet chamber (101), and a smoke exhaust chamber (103) fixedly connected to the upper surface of the heat insulation cover (102). A smoke exhaust pipe (104) is installed on the upper surface of the smoke exhaust chamber (103). A fire inlet (105) is provided on the side wall of the fire inlet chamber (101). The reinforcing unit (2) includes a lifting component (201) disposed on the side wall of the heating unit (1).

2. The hot blast stove heat exchanger pipe arrangement structure as described in claim 1, characterized in that: The lifting assembly (201) includes a mounting plate (2002) whose side wall is fixedly connected to the smoke exhaust chamber (103), a fan (2001) fixedly installed on the side wall of the mounting plate (2002), and an arc-shaped seat (2005) fixedly installed on the bottom surface of the fire inlet chamber (101).

3. The hot blast stove heat exchanger pipe arrangement structure as described in claim 2, characterized in that: A rotating rod (2003) is fixedly installed on the rotating shaft of the fan (2001), and one end of the rotating rod (2003) extends into the interior of the smoke exhaust chamber (103).

4. The hot blast stove heat exchanger pipe arrangement structure as described in claim 3, characterized in that: One end of the rotating rod (2003) is rotatably connected to the inner wall of the smoke exhaust chamber (103), and blades (2004) are fixedly installed on the outer surface of the rotating rod (2003).

5. The hot blast stove heat exchanger pipe arrangement structure as described in claim 4, characterized in that: The blade (2004) is fixed in a spiral shape on the outer surface of the rotating rod (2003), and the air outlet of the fan (2001) is in the same direction as the smoke outlet of the exhaust pipe (104).

6. The hot blast stove heat exchanger pipe arrangement structure as described in claim 5, characterized in that: It also includes a heat exchange unit (3), which includes a plurality of heat exchange pipes (301) connected to the upper surface of the fire chamber (101), the other end of the plurality of heat exchange pipes (301) connected to the lower surface of the smoke exhaust chamber (103), and a cold air pipe (304) and a hot air pipe (305) connected to the side wall of the insulation cover (102).

7. The hot blast stove heat exchanger pipe arrangement structure as described in claim 6, characterized in that: The heat exchange unit (3) also includes an insulation plate (302) with its two ends fixedly connected to the upper surface of the fire inlet chamber (101) and the lower surface of the smoke exhaust chamber (103) respectively, and fins (303) with their side walls fixedly connected to the heat exchange pipe (301).

8. The hot blast stove heat exchanger pipe arrangement structure as described in claim 7, characterized in that: The insulation board (302) is fixedly installed between the two heat exchange pipes (301), and the installation of the insulation board (302) makes the heat exchange pipes (301) form a one-way channel.

9. The hot blast stove heat exchanger pipe arrangement structure as described in claim 8, characterized in that: The fins (303) are configured with a double bevel and are arranged in a cross pattern.

10. The hot blast stove heat exchanger pipe arrangement structure as described in claim 9, characterized in that: The cold air duct (304) is configured as a bend, and the hot air duct (305) is configured as a straight pipe.

Images