Fin embedded type waste heat recovery equipment

Abstract

The utility model relates to the technical field of heat exchange, and discloses fin embedded type waste heat recovery equipment which comprises a shell, one end of the shell is open and is in threaded connection with an installation bottom cover, a steam heat exchange channel is arranged in the shell, a plurality of strip-shaped insertion openings are formed in the outer surface of the steam heat exchange channel, and the strip-shaped insertion openings are in threaded connection with the installation bottom cover. Fins are inserted into the surfaces of the strip-shaped inserting openings. The natural convection heat exchange technology is adopted, the requirements for dehumidification heat loss and air purification are avoided, heat exchange is more direct and effective, the energy utilization efficiency can be improved, the heat conduction efficiency is high, the heat exchange contact face is increased, heat exchange is more sufficient through the improved fin type heat exchange piece design, the fins are made of aluminum alloy materials, the heat conduction coefficient is high, and the heat exchange efficiency is improved. And the triangular convex block turbulent flow design is additionally arranged on the inner wall of the shell, so that gas heat exchange is more uniform and sufficient, laminar flow heat exchange is converted into turbulent flow heat exchange, and the heat exchange efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to a fin-embedded type waste heat recovery device. Background Art

[0002] With the development of industrialization, more and more factories are built. Some factories will generate a lot of waste heat when they are in operation, especially in the production process of steel, chemical, petroleum, building materials, light industry and food industries, there are abundant waste heat resources. If this part of waste heat is discharged into the air, it is not only a waste of energy, but also pollutes the environment.

[0003] Therefore, it is necessary to recover the waste heat of industrial exhaust gas. The industrial exhaust gas generally passes through a heat exchanger before being discharged. The air enters the heat exchanger and exchanges heat with the industrial exhaust gas before being discharged, thereby realizing the recovery of waste heat. The commonly used heat exchange equipment is a compression dehumidification heat exchanger. This type of equipment has a relatively complex structure and a high cost. It will cause dehumidification heat loss and also requires air purification. Therefore, a fin-embedded waste heat recovery device is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a fin-embedded waste heat recovery device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fin-embedded waste heat recovery device, comprising an outer shell, one end of which is open and threadedly connected to a mounting bottom cover, a steam heat exchange channel is arranged inside the outer shell, a plurality of strip-shaped sockets are arranged on the outer surface of the steam heat exchange channel, and fins are inserted on the surfaces of the plurality of strip-shaped sockets, one end of the fin extends to the interior of the steam heat exchange channel, and the other end extends between the outer shell and the steam heat exchange channel, so as to increase the heat exchange area, a plurality of triangular protrusions are fixed to the inner wall of the outer shell, so as to form turbulence, and the upper and lower outer surfaces of the outer shell are respectively connected to a hot air outlet and a cold air inlet.

[0006] As a further description of the above technical solution:

[0007] The fin is made of aluminum alloy material, and a connecting piece is also arranged on the surface of the fin.

[0008] As a further description of the above technical solution:

[0009] Two groups of fixed baffles are fixed on the inner wall surface of the shell, and the fixed baffles are in close contact with the outer surfaces of the fins.

[0010] As a further description of the above technical solution:

[0011] Both ends of the steam heat exchange channel are threadedly connected with elbows.

[0012] As a further description of the above technical solution:

[0013] The outer surfaces of both ends of the steam heat exchange channel are connected with retaining rings.

[0014] As a further description of the above technical solution:

[0015] An internal thread connection hole is provided on the surface of the mounting bottom cover, and an auxiliary mounting rod is detachably connected to the internal thread connection hole.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model has the characteristics of efficient energy utilization: it adopts natural convection heat exchange technology, avoids the need for dehumidification heat loss and air purification, and heat exchange is more direct and effective, which helps to improve energy utilization efficiency.

[0018] 2. The utility model has the characteristics of improving heat exchange efficiency: the improved fin-type heat exchanger design makes the heat conduction efficiency high, increases the heat exchange contact surface, and makes the heat exchange more sufficient. The fins are made of aluminum alloy material with high thermal conductivity, which greatly improves the heat exchange efficiency;

[0019] 3. The utility model optimizes the design of the recovery heat exchanger, and adds a triangular convex flow disturbance design on the inner wall of the shell to make the gas heat exchange more uniform and sufficient, transforming the laminar heat exchange into turbulent heat exchange, further improving the heat exchange efficiency;

[0020] 4. The utility model is designed as a small monomer design. In application, the monomers can be connected in series or in parallel to form groups for use according to actual conditions and needs. The application is very flexible. At the same time, each small monomer is easy to disassemble and assemble, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a fin-embedded waste heat recovery device proposed by the utility model;

[0022] Figure 2 This is a cross-sectional view of a fin-embedded waste heat recovery device proposed by the utility model;

[0023] Figure 3 A three-dimensional diagram of a fin-embedded waste heat recovery device proposed by the utility model with the installation bottom cover removed;

[0024] Figure 4 This is a first-view parts diagram of a fin-embedded waste heat recovery device proposed by the utility model;

[0025] Figure 5This is a second-view parts diagram of a fin-embedded waste heat recovery device proposed by the utility model;

[0026] Figure 6 This is a simplified operating diagram of a fin-embedded waste heat recovery device proposed in the utility model.

[0027] Legend:

[0028] 1. Outer shell; 2. Hot air outlet; 3. Cold air inlet; 4. Internal thread connection hole; 5. Elbow; 6. Steam heat exchange channel; 7. Fins; 8. Connecting piece; 9. Retaining ring; 10. Fixed retaining plate; 11. Triangular protrusion; 12. Install the bottom cover. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example:

[0031] Reference Figure 1-Figure 6 The utility model provides an embodiment: a fin-embedded waste heat recovery device, comprising a shell 1, one end of the shell 1 is open and is threadedly connected with a mounting bottom cover 12, a steam heat exchange channel 6 is arranged inside the shell 1, a plurality of strip-shaped sockets are arranged on the outer surface of the steam heat exchange channel 6, and fins 7 are inserted on the surfaces of the plurality of strip-shaped sockets, one end of the fin 7 extends to the inside of the steam heat exchange channel 6, and the other end extends between the shell 1 and the steam heat exchange channel 6, so as to increase the heat exchange area, so that the fin 7 is embedded in the steam heat exchange channel 6, the whole heat exchange fin runs through the hot zone and the cold zone, improves the heat conduction efficiency, increases the heat exchange contact surface, and the fin 7 builds a bridge for the heat exchange between the hot zone and the cold zone, ensuring the smooth flow of the heat exchange channel between the hot zone and the cold zone.

[0032] A plurality of triangular protrusions 11 are fixed to the inner wall of the outer shell 1 to form turbulence, thereby converting laminar heat exchange into turbulent heat exchange, making the gas heat exchange more uniform and sufficient, and having a low design cost. The upper and lower outer surfaces of the outer shell 1 are respectively connected to a hot air outlet 2 and a cold air inlet 3.

[0033] Specifically, the fin 7 is made of aluminum alloy material with low material cost and thermal conductivity of 236W / (m*k), which can improve the heat exchange efficiency. The surface of the fin 7 is also provided with a connecting piece 8, which can play the role of blocking the strip socket. Two sets of fixed baffles 10 are fixed on the inner wall surface of the shell 1. The fixed baffles 10 are in close contact with the outer surface of the fin 7, thereby ensuring the stability of the installation of the fin 7. Both ends of the steam heat exchange channel 6 are threadedly connected with elbows 5, which is convenient for connecting and using multiple monomers. The outer surfaces of both ends of the steam heat exchange channel 6 are connected with baffle rings 9, which is convenient for sealing the openings of the installation bottom cover 12 and the surface of the shell 1 passing through the steam heat exchange channel 6. The surface of the installation bottom cover 12 is provided with an internal threaded connecting hole 4, and the internal threaded connecting hole 4 is detachably connected with an auxiliary mounting rod. The auxiliary mounting rod can be pressed on during assembly, which makes it more convenient to rotate the installation bottom cover 12 to connect it to the shell 1.

[0034] During installation, first insert multiple fins 7 into the strip-shaped sockets of the steam heat exchange channel 6, and then insert the steam heat exchange channel 6 equipped with fins 7 from the open end of the shell 1. During insertion, the fixed baffle 10 is in contact with the fin 7, and then the bottom cover 12 is screwed on and installed.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fin-embedded waste heat recovery device, comprising a housing (1), characterized in that: One end of the shell (1) is open and is threadedly connected to a mounting bottom cover (12). A steam heat exchange channel (6) is provided inside the shell (1). The outer surface of the steam heat exchange channel (6) is provided with a plurality of strip-shaped sockets. Fins (7) are inserted on the surfaces of the plurality of strip-shaped sockets. One end of the fin (7) extends to the inside of the steam heat exchange channel (6), and the other end extends between the shell (1) and the steam heat exchange channel (6) to increase the heat exchange area. A plurality of triangular protrusions (11) are fixed to the inner wall of the shell (1) to form turbulence. The upper and lower outer surfaces of the shell (1) are respectively connected to a hot air outlet (2) and a cold air inlet (3).

2. The fin-embedded waste heat recovery device according to claim 1, characterized in that: The fin (7) is made of an aluminum alloy material, and a connecting piece (8) is also provided on the surface of the fin (7).

3. The fin-embedded waste heat recovery device according to claim 1, characterized in that: Two groups of fixed baffles (10) are fixed on the inner wall surface of the outer shell (1), and the fixed baffles (10) are in close contact with the outer surface of the fin (7).

4. The fin-embedded waste heat recovery device according to claim 1, characterized in that: Both ends of the steam heat exchange channel (6) are threadedly connected with elbows (5).

5. The fin-embedded waste heat recovery device according to claim 1, characterized in that: The outer surfaces of both ends of the steam heat exchange channel (6) are connected with retaining rings (9).

6. The fin-embedded waste heat recovery device according to claim 1, characterized in that: An internal thread connection hole (4) is provided on the surface of the mounting bottom cover (12), and an auxiliary mounting rod is detachably connected to the internal thread connection hole (4).

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