High-efficiency flue gas electric heater

Abstract

The utility model discloses a high-efficiency flue gas electric heater which comprises a heating box, guide plates are fixedly installed on the inner side of the heating box, a heating pipe is arranged between the guide plates, heat conduction fins are arranged on the surface of the heating pipe, the upper end of the heating pipe is fixed on the heating box, the guide plates comprise main plates, and the main plates are arranged on the main plates. A heat conducting plate is arranged on the outer side of the main plate, and auxiliary vent holes are formed in the surface of the main plate; a power connection box is arranged at the upper end of the heating box, and the upper end of the heating pipe penetrates through the heating box to be connected with the power connection box; the heating box comprises a protection plate, a heat insulation layer is arranged on the inner side of the protection plate, and a lining plate is arranged on the inner side of the heat insulation layer; through the designed guide plate, smoke is guided to a certain extent through the guide plate during use, a heating channel is lengthened, the heat absorption and heat conduction effects of the heat conduction plate are matched to assist in heating the smoke, and the auxiliary vent holes are convenient for the smoke to quickly pass through and are matched with the heat conduction plate for heating and heat conduction.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric heaters, and in particular relates to a high-efficiency flue gas electric heater. Background Art

[0002] The functions of flue gas heaters can be simplified into two types: raising the exhaust temperature and solving the problem of white smoke coming out of the chimney. Generally speaking, industrial exhaust will be heated up because the exhaust temperature after wet desulfurization is about 50°C. It is necessary to use a flue gas heater to increase the temperature of the flue gas discharged from the chimney. Raising the flue temperature of 50°C to 80°C can raise it by about 200M, which is more conducive to diffusion and reduces pollution.

[0003] With respect to the above-mentioned flue gas electric heater related technologies, the inventors believe that:

[0004] The flue gas electric heater reheats the flue gas when in use, but the channels of some heaters are not long, and the flue gas cannot be effectively heated to the expected temperature when passing through, which will affect the heating treatment effect. Therefore, it is necessary to design a high-efficiency flue gas electric heater to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high-efficiency flue gas electric heater to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency flue gas electric heater, comprising a heating box, a guide plate is fixedly installed on the inner side of the heating box, a heating tube is arranged between the guide plates, a heat-conducting fin is arranged on the surface of the heating tube, the upper end of the heating tube is fixed on the heating box, the guide plate comprises a main board, a heat-conducting plate is arranged on the outer side of the main board, and auxiliary ventilation holes are opened on the surface of the main board.

[0007] Preferably, an electrical connection box is provided at the upper end of the heating box, and the upper end of the heating tube passes through the heating box and is connected to the electrical connection box.

[0008] Preferably, the heating box comprises a protective plate, a heat insulating layer is arranged on the inner side of the protective plate, and an inner lining plate is arranged on the inner side of the heat insulating layer.

[0009] Preferably, a clamping plate is provided on the outer side of the heating tube, and one end of the clamping plate is mounted on the guide plate.

[0010] Preferably, a clamping groove is formed at one end of the clamping plate, and the radius of the clamping groove is the same as the radius of the heating tube.

[0011] Preferably, a mounting post is provided at one end of the clamping plate, and the mounting post is inserted into the inner side of the auxiliary vent hole and fixed by bolts.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the designed guide plate, the flue gas is guided to a certain extent during use, the heating channel is extended, and the heat absorption and heat conduction effect of the heat conduction plate is cooperated to assist in heating the flue gas. The auxiliary vent holes facilitate the rapid passage of the flue gas and cooperate with the heat conduction plate for heating and heat conduction.

[0014] 2. Through the designed clamping plate, the clamping plate is clamped on the heating tube during use, so that the installation of the heating tube is more stable and the phenomenon of the heating tube being shaken by force when the flue gas is introduced is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the heating top view structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the heating side structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the clamping plate of the utility model;

[0019] In the figure: 1. Heating box; 2. Power connection box; 3. Guide plate; 4. Heating tube; 5. Heat-conducting fins; 6. Protective plate; 7. Insulation layer; 8. Lining plate; 9. Main board; 10. Heat-conducting plate; 11. Auxiliary vents; 12. Clamping plate; 13. Clamping groove; 14. Mounting column. DETAILED DESCRIPTION

[0020] 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.

[0021] Example 1: Please refer to Figures 1 to 4The utility model provides a technical solution: a high-efficiency flue gas electric heater, including a heating box 1, a guide plate 3 is fixedly installed on the inner side of the heating box 1, a heating tube 4 is arranged between the guide plates 3, a heat conducting fin 5 is arranged on the surface of the heating tube 4, the upper end of the heating tube 4 is fixed on the heating box 1, the guide plate 3 includes a main board 9, a heat conducting plate 10 is arranged on the outer side of the main board 9, and an auxiliary vent hole 11 is opened on the surface of the main board 9. After the flue gas enters the heating box 1, it is guided through the opening at one end of the guide plate 3 and ventilated with the auxiliary vent hole 11, so as to ensure the flue gas passing amount, and at the same time the heat conducting plate 10 The heat emitted by the heating tube 4 is absorbed, and auxiliary heating is performed through the heat conducting plate 10 when the auxiliary vent hole 11 is ventilated, and then further heated by the cooperation of the heating tube 4 and the heat conducting fins 5. At the same time, the main channel opened at one end of the guide plate 3 is in full contact with the heating tube 4 so as to be fully heated; an electrical connection box 2 is provided at the upper end of the heating box 1, and the upper end of the heating tube 4 passes through the heating box 1 and is connected to the electrical connection box 2, which is convenient for connecting electricity for heating when in use; the heating box 1 includes a protective plate 6, and a heat insulating layer 7 is provided on the inner side of the protective plate 6, and an inner lining plate 8 is provided on the inner side of the heat insulating layer 7, so as to ensure the heat insulation effect of the heating box 1 when in use.

[0022] From the above description, it can be seen that the utility model has the following beneficial effects: when in use, the guide plate 3 guides the flue gas to a certain extent, extends the heating channel, cooperates with the heat absorption and heat conduction effect of the heat conduction plate 10 to assist in heating the flue gas, and facilitates the rapid passage of the flue gas through the auxiliary vents 11 and cooperates with the heat conduction plate 10 for heating and heat conduction.

[0023] Example 2: Please refer to Figures 1 to 4 As shown, on the basis of embodiment 1, the utility model provides a technical solution: a clamping plate 12 is provided on the outer side of the heating tube 4, one end of the clamping plate 12 is installed on the guide plate 3, a clamping groove 13 is opened at one end of the clamping plate 12, the radius of the clamping groove 13 is the same as the radius of the heating tube 4, and the clamping plate 12 is stably clamped on the heating tube 4 through the clamping groove 13; a mounting column 14 is provided at one end of the clamping plate 12, the mounting column 14 is inserted into the inner side of the auxiliary vent hole 11 and fixed by bolts, and the clamping plate 12 is stably installed on the guide plate 3 through the cooperation of the mounting column 14 and the auxiliary vent hole 11.

[0024] By adopting the above technical solution, the clamping plate 12 is clamped on the heating tube 4 during use, so that the installation of the heating tube 4 is more stable, and the phenomenon of the heating tube 4 being shaken by force when the flue gas is introduced is avoided.

[0025] The working principle and use process of the utility model are as follows: when in use, it is connected to the flue gas duct. After the flue gas enters the heating box 1, it is guided through the opening at one end of the guide plate 3 and ventilated with the auxiliary vent hole 11 to ensure the flue gas flow rate. At the same time, the heat conducting plate 10 absorbs the heat emitted by the heating tube 4. When the auxiliary vent hole 11 is ventilated, the heat conducting plate 10 assists in heating. Then, the heating tube 4 and the heat conducting fins 5 cooperate to further heat the flue gas. At the same time, the main channel opened at one end of the guide plate 3 is in full contact with the heating tube 4 so as to be fully heated, so that the heating effect of the flue gas is better and more efficient. When in use, the flue gas is supported on the heating tube 4 and the guide plate 3 by the clamping plate 12, so that the heating tube 4 is more stable when installed and used, and the phenomenon that the flue gas blows the heating tube 4 to vibrate is reduced.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A high-efficiency flue gas electric heater, comprising a heating box (1), characterized in that: A guide plate (3) is fixedly mounted on the inner side of the heating box (1), a heating tube (4) is arranged between the guide plates (3), a heat conducting fin (5) is arranged on the surface of the heating tube (4), the upper end of the heating tube (4) is fixed on the heating box (1), the guide plate (3) comprises a main board (9), a heat conducting plate (10) is arranged on the outer side of the main board (9), and an auxiliary ventilation hole (11) is opened on the surface of the main board (9).

2. A high-efficiency flue gas electric heater according to claim 1, characterized in that: An electrical connection box (2) is provided at the upper end of the heating box (1), and the upper end of the heating tube (4) passes through the heating box (1) and is connected to the electrical connection box (2).

3. The high-efficiency flue gas electric heater according to claim 1, characterized in that: The heating box (1) comprises a protective plate (6), a heat insulation layer (7) is arranged on the inner side of the protective plate (6), and an inner lining plate (8) is arranged on the inner side of the heat insulation layer (7).

4. The high-efficiency flue gas electric heater according to claim 1, characterized in that: A clamping plate (12) is provided on the outer side of the heating tube (4), and one end of the clamping plate (12) is mounted on the guide plate (3).

5. The high-efficiency flue gas electric heater according to claim 4, characterized in that: A clamping groove (13) is formed at one end of the clamping plate (12), and the radius of the clamping groove (13) is the same as the radius of the heating tube (4).

6. A high-efficiency flue gas electric heater according to claim 4, characterized in that: A mounting column (14) is provided at one end of the clamping plate (12); the mounting column (14) is inserted into the inner side of the auxiliary vent hole (11) and fixed by means of bolts.

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