Efficient heat exchange air heater

Abstract

The utility model discloses an efficient heat exchange air heater which comprises a box body structure, a heating structure is arranged in the box body structure, the box body structure comprises a heater with a heating rod on the upper portion, a heating box body is arranged on the heating rod in a penetrating mode, and meanwhile the heating box body is fixedly installed on the heater. A flame-retardant heat preservation film is arranged in the heating box body, the outer wall of the heating box body is wrapped with a flame-retardant heat preservation layer, the heating structure comprises a U-shaped pipe internally provided with a through hole fin plate, and one end of the U-shaped pipe penetrates through the heating box body, extends to the outer wall of the heating box body and is fixedly connected with a fan. And meanwhile, the other end of the U-shaped pipe penetrates through the heating box body and extends to the upper portion of the outer wall of the heating box body to be connected with the mounting hopper in an embedded and through mode, and a through hole cavity disc connected with the other end of the U-shaped pipe in an embedded and through mode is laid in the mounting hopper.

Description

Technical Field

[0001] The utility model relates to the technical field of air heaters, in particular to an air heater with high efficiency heat exchange. Background Art

[0002] In the food processing, printing and dyeing, hardware, casting, painting, heating, coating and other industries, heating and drying are often required. After searching, it is found that the existing public technology has the publication number: CN201141699Y, an air heater, which includes a heating box, an air outlet is provided on the box wall of the heating box, a heating liner is provided inside the heating box, a heating source is provided inside the heating liner, and a hollow cavity for heating air is left between the heating liner and the box wall. Due to the adoption of the above technical solution, compared with the past, the technical problems of the stainless steel tube in the heater liner in the prior art being easily burned and damaged, increasing the maintenance cost, and the low heat exchange efficiency and wasting energy are solved. It has the advantages of being sturdy and durable, not easy to be damaged, reducing the maintenance cost, high heat exchange efficiency and saving energy.

[0003] In summary: the air heater installed in the above case adopts the method of adding fuel to perform heat exchange with the air. However, when performing heat exchange by adding fuel, it not only increases the fuel cost but also causes the exhaust gas of the fuel to pollute the environment. Utility Model Content

[0004] The purpose of the utility model is to provide an air heater with high efficiency heat exchange in view of the deficiencies of the prior art, so as to solve the problem in the above background technology that heat exchange by adding fuel not only increases fuel costs but also causes fuel exhaust gas to pollute the environment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air heater with high efficiency heat exchange, comprising a box structure, wherein a heating structure is arranged inside the box structure;

[0006] The box structure includes a heater with a heating rod on the top, and a heating box is provided through the heating rod, and the heating box is fixedly mounted on the heater;

[0007] The interior of the heating box is provided with a flame retardant heat-insulating film, and the outer wall of the heating box is wrapped with a flame retardant heat-insulating layer.

[0008] By adopting the above technical solution, the medium is heated by the provided heating rod.

[0009] Preferably, the heating structure includes a U-shaped tube with a through-hole fin plate inside, and one end of the U-shaped tube passes through the heating box, extends to the outer wall of the heating box and is fixedly connected to the fan, while the other end of the U-shaped tube passes through the heating box, extends above the outer wall of the heating box and is inlaid with the mounting bucket.

[0010] By adopting the above technical solution, a two-way installation connection is achieved through the provision of a U-shaped tube.

[0011] Preferably, a through-hole cavity plate is laid inside the installation bucket and is embedded and connected to the other end of the U-shaped tube, and a connecting pipe is embedded and connected to the upper part of the interior of the heating box body on one side of the through-hole cavity plate.

[0012] By adopting the above technical solution, fixed installation is achieved through the provided installation bucket.

[0013] Preferably, another through-hole cavity disk is fixed above the interior of the installation bucket, and a one-way valve is provided inside the other through-hole cavity disk. Meanwhile, a filter screen is matchedly installed on the other through-hole cavity disk, and the installation bucket is fixed above the heating box.

[0014] By adopting the above technical solution, the dust in the air can be filtered through the provided filter.

[0015] Preferably, the flame retardant thermal insulation film is an aluminum foil thermal insulation film, and the flame retardant thermal insulation film is arranged in a rectangular shape.

[0016] By adopting the above technical solution, the flame retardant thermal insulation film is provided to achieve thermal insulation.

[0017] Preferably, the overall shape of the through-hole fin plate is "V".

[0018] By adopting the above technical solution, the through-hole fin plate is provided to play a role in buffering and limiting current.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the air heater with high efficiency heat exchange,

[0020] (1) This case solves the problem that the air heater in the above case adopts the method of adding fuel to exchange heat with the air. However, the method of adding fuel to exchange heat not only increases the fuel cost but also causes the exhaust gas of the fuel to pollute the environment. When the air needs to be heated, the operator controls the heater and the heating rod to heat the medium inside the heating box. After the medium is heated, the heat is transferred to the U-shaped tube inside the heating box. When the heat is transferred through the U-shaped tube, the air transported to the inside of the U-shaped tube is heated. The heater controls the heating temperature of the medium inside the heating box and keeps the heated medium inside the heating box warm, so as to avoid frequent heating of the medium inside the heating box, which not only increases energy consumption but also reduces the air heating efficiency.

[0021] (2) By setting up: a heating structure, the flow rate of air inside the U-shaped tube is reduced, the heat exchange efficiency of the air is improved and the air heating time is shortened. When the medium inside the heating box is heated, the heat is transferred to the U-shaped tube and the internal through-hole fin plate. The through-hole fin plate reduces the flow rate of air inside the U-shaped tube and improves the heat exchange efficiency of the air. When the medium inside the heating box is in a heated state, the steam generated is transported to the U-shaped tube and the installation bucket through the connecting pipe. The steam transported to the U-shaped tube and the installation bucket preheats and heat exchanges the air inside the installation bucket and the U-shaped tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the box structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the heating structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the through-hole cavity disk of the utility model.

[0026] In the figure: 1. Box structure; 101. Heater; 102. Heating rod; 103. Heating box; 104. Flame retardant thermal insulation film; 105. Flame retardant thermal insulation layer; 2. Heating structure; 201. U-shaped tube; 202. Through-hole fin plate; 203. Fan; 204. Mounting bucket; 205. Through-hole cavity plate; 206. Connecting pipe; 207. Filter. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-4 The utility model provides a technical solution: an air heater with high efficiency heat exchange, such as Figure 1 and Figure 2As shown, the box structure 1 includes a heater 101 with a heating rod 102 on the top, and a heating box 103 is penetrated by the heating rod 102, and the heating box 103 is fixedly installed on the heater 101, wherein a temperature sensing module is arranged inside the heating box 103, and the heating temperature of the medium inside the heating box 103 is monitored by the temperature sensing module, and the medium inside the heating box 103 is kept at a constant temperature by the temperature sensing module.

[0029] The above scheme further provides a flame retardant thermal insulation film 104 inside the heating box 103, and the flame retardant thermal insulation film 104 is an aluminum foil thermal insulation film, and the flame retardant thermal insulation film 104 is arranged in a rectangular shape. When the above-mentioned components are arranged in the form of an aluminum foil thermal insulation film, this not only insulates the inner wall of the heating box 103, but also prevents leakage of the medium inside the heating box 103. In addition, the aluminum foil thermal insulation film is arranged in the form of an aluminum foil, which effectively improves the compression resistance of the flame retardant thermal insulation film 104. When the flame retardant thermal insulation film 104 is arranged in a rectangular shape, it effectively insulates and waterproofs the inner wall of the heating box 103, and the outer wall of the heating box 103 is wrapped with a flame retardant thermal insulation layer 105.

[0030] In the above solution, when the air needs to be heated, the operator controls the heater 101 and the heating rod 102 to heat the medium inside the heating box 103 .

[0031] like Figure 3 and Figure 4 As shown, a heating structure 2 is arranged inside the box structure 1, and the heating structure 2 includes a U-shaped tube 201 with a through-hole fin plate 202 arranged inside, and the through-hole fin plate 202 is arranged in a "V" shape as a whole. When the above-mentioned components are arranged in a "V" shape as a whole, it not only reflects the symmetry of the installation arrangement of the above-mentioned components, but also reflects the practicality of the installation arrangement of the above-mentioned components. When the above-mentioned components are arranged in a "V" shape as a whole, the heat transfer of the installation arrangement of the above-mentioned components and the slowing down of the air flow rate are simultaneously reflected. The U-shaped tube 201 has one end that penetrates the heating box 103 and extends to the outer wall of the heating box 103 and is fixedly connected to the fan 203. Meanwhile, the other end of the U-shaped tube 201 penetrates the heating box 103 and extends to the upper part of the outer wall of the heating box 103 and is embedded and connected to the mounting bucket 204. The U-shaped tube 201 and the through-hole fin plate 202 are both made of copper material. The use of copper material not only improves the thermal conductivity of the through-hole fin plate 202 and the U-shaped tube 201, but also effectively avoids the use of other materials that lead to low thermal conductivity.

[0032] Furthermore, the above scheme is provided with a through hole cavity plate 205 which is embedded and connected with the other end of the U-shaped tube 201 inside the installation bucket 204, and a connecting tube 206 is embedded on one side of the through hole cavity plate 205 and is embedded and connected with the upper part of the interior of the heating box 103, wherein the through hole cavity plate 205 and the connecting tube 206 are also made of copper material, and the copper material is also used for heat conduction.

[0033] The above scheme further comprises another through-hole cavity disk 205 fixed above the interior of the installation bucket 204, and a one-way valve is provided inside the other through-hole cavity disk 205. Meanwhile, a filter screen 207 is installed on the other through-hole cavity disk 205, and the installation bucket 204 is fixed above the heating box 103.

[0034] In the above scheme, after the medium inside the heating box 103 is heated, the heat is transferred to the U-shaped tube 201 and the internal through-hole fin plate 202. The through-hole fin plate 202 reduces the flow velocity of the air inside the U-shaped tube 201 and improves the heat exchange efficiency of the air. When the medium inside the heating box 103 is in a heated state, the steam generated is transported to the inside of the U-shaped tube 201 and the installation bucket 204 through the connecting pipe 206. The steam transported to the inside of the U-shaped tube 201 and the installation bucket 204 preheats and heat exchanges the air inside the installation bucket 204 and the U-shaped tube 201.

[0035] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. An air heater with high efficiency heat exchange, comprising a box structure (1), characterized in that: A heating structure (2) is provided inside the box structure (1); The box structure (1) comprises a heater (101) with a heating rod (102) on the top, and a heating box (103) is provided through the heating rod (102), and the heating box (103) is fixedly mounted on the heater (101); The interior of the heating box (103) is provided with a flame retardant thermal insulation film (104), and the outer wall of the heating box (103) is wrapped with a flame retardant thermal insulation layer (105).

2. The air heater with high efficiency heat exchange according to claim 1, characterized in that: The heating structure (2) comprises a U-shaped tube (201) with a through-hole fin plate (202) inside, and one end of the U-shaped tube (201) passes through the heating box (103) and extends to the outer wall of the heating box (103) to be fixedly connected to the fan (203), while the other end of the U-shaped tube (201) passes through the heating box (103) and extends above the outer wall of the heating box (103) to be embedded and connected to the installation bucket (204).

3. The air heater with high efficiency heat exchange according to claim 2, characterized in that: A through-hole cavity disk (205) is laid inside the installation bucket (204) and is embedded and connected to the other end of the U-shaped tube (201), and a connecting tube (206) is embedded on one side of the through-hole cavity disk (205) and is embedded and connected to the upper part of the interior of the heating box (103).

4. The air heater with high efficiency heat exchange according to claim 2, characterized in that: Another through-hole cavity disk (205) is fixed above the interior of the installation bucket (204), and a one-way valve is provided inside the other through-hole cavity disk (205). A filter screen (207) is also installed on the other through-hole cavity disk (205). The installation bucket (204) is fixed above the heating box (103).

5. The air heater with high efficiency heat exchange according to claim 1, characterized in that: The flame retardant thermal insulation film (104) is an aluminum foil thermal insulation film, and the flame retardant thermal insulation film (104) is arranged in a rectangular shape.

6. The air heater with high efficiency heat exchange according to claim 2, characterized in that: The through-hole fin plate (202) is arranged in a "V" shape as a whole.

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