Electric heater of industrial blower

Abstract

The utility model relates to the technical field of electric heaters, in particular to an electric heater of an industrial blower, which comprises an electric heating cylinder. The air blower is detachably installed on the saddle close to one side of the junction box, the output end of the air blower is detachably connected with a preheating transmission pipe, the end, away from the air blower, of the preheating transmission pipe is communicated with an air inlet in the bottom of the electric heating cylinder in an inserted mode, and a heating piece is arranged on the inner wall of the preheating transmission pipe in an attached mode; and preheated gas is transferred into the electric heating cylinder through the gas inlet, so that sufficient gas is provided for the interior of the electric heating cylinder, and meanwhile, the internal heating efficiency of the electric heating cylinder is improved by utilizing the heat of the gas.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heaters, in particular to an industrial blower electric heater. Background Art

[0002] Electric heaters convert electrical energy into thermal energy, which is used to increase the temperature, keep warm, and heat the flowing liquid and gaseous media. Electric heaters plus blowers can generate hot air, which can increase the speed of air drying. They are used in many fields. For industrial blower electric heaters, blowers are mainly used to transport clean air or gas, and to increase the pressure and volume of other equipment. It can transport compressed air, hydrogen and other media; Enhance the combustion process: In blast furnaces, electric furnaces and other equipment in the metallurgical industry, blowers are used to enhance the combustion process and provide high-pressure air to support combustion.

[0003] The airflow generated by the blower first passes through the outlet of the blower and then flows to the electric heater. Inside the electric heater, the airflow is heated when passing through the heating element and then discharged from the outlet of the electric heater. Usually, the outlet of the blower is directly connected to the inlet of the electric heater through a pipe. The pipe can be made of metal or plastic, depending on the application requirements and the nature of the gas or liquid.

[0004] Since the function of the blower is to transport air toward the electric heater to enhance the combustion efficiency, the higher the temperature of the gas transmitted by the blower, the better, that is, it is easier to input into the electric heater, which can increase the efficiency of subsequent heating. However, when the existing blower and the electric heater are transmitting gas, the air is not preheated, and the connection and distribution between the existing blower and the industrial electric heater are inconvenient to install and disassemble, which is not conducive to maintenance and replacement;

[0005] Therefore, in view of the above-mentioned problems, the present technical solution proposes an industrial blower electric heater. Utility Model Content

[0006] The purpose of the utility model is to provide an industrial blower electric heater to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an industrial blower electric heater, comprising an electric heating tube, a saddle, a junction box, and a blower; the saddle is provided with two groups and is symmetrically installed on both sides of the bottom of the electric heating tube, the junction box is connected and arranged on one side of the end of the electric heating tube, and the output end of the junction box is connected with a heating element arranged inside the electric heating tube, that is, the heating element is controlled by the junction box to heat the inside of the electric heating tube, the blower is detachably installed on the saddle near one side of the junction box, the output end of the blower is detachably connected with a preheating transmission pipe, the end of the preheating transmission pipe away from the blower is plug-in connected to the air inlet at the bottom of the electric heating tube, a section of heating sheet is fitted on the inner wall of the preheating transmission pipe, and a heating sheet is arranged on the top of the heating sheet. A control box is arranged on the side, and the top of the control box is plug-in connected to the junction box through a wire, and the junction box is used to supply power toward the heating plate, so as to heat the air transmitted along the inside of the preheating transmission tube, and the preheated gas is transferred to the inside of the electric heating tube through the air inlet, so as to ensure that sufficient gas is provided to the inside of the electric heating tube, and at the same time, the heat of the gas is used to increase the efficiency of its internal heating; at the same time, the detachable connection between the blower and the saddle, between the two ends of the preheating transmission tube and the electric heating tube and the blower, and between the wire and the junction box is used to facilitate the replacement and maintenance of the blower and the preheating transmission tube, and whether the transmission gas inside the preheating transmission tube is heated, and the junction box is used to connect the power, thereby reducing the cost of setting up an additional power structure for the operation of the heating plate.

[0008] Compared with the prior art, the utility model has the following beneficial effects: by arranging a heating plate inside the preheating transmission tube, the gas transferred to the inside of the electric heating cylinder is preheated, and the speed and efficiency of subsequent heating are increased without affecting the normal gas transmission inside the electric heating cylinder;

[0009] By adopting detachable connections between the blower and the electric heating tube, between the preheating transmission tube and the electric heating tube, between the blower, between the wire and the junction box, etc., it is convenient to replace, repair and perform various operations on the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of an industrial blower electric heater.

[0011] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of A.

[0012] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of B.

[0013] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of C in the figure.

[0014] Figure 5It is a structural schematic diagram of the saddle in the electric heater of the industrial blower;

[0015] Among them: electric heating cylinder 10, saddle 11, junction box 12, blower 13, electric heating cylinder air inlet pipe 15, preheating transmission pipe 16, blower air outlet 17, heating plate 18, wire 19, socket 20, plug 21, heat insulation cover 22, sealing ring 23, connecting plug 24, control box 25, positioning hole 26, positioning rod 27, screw 28, screw cylinder 29. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0017] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0020] See also Figure 1The industrial blower electric heater comprises an electric heating tube 10, a saddle 11, a junction box 12 and a blower 13; the saddle 11 is provided with two groups and is symmetrically installed on both sides of the bottom of the electric heating tube 10; the junction box 12 is connected and arranged on one side of the end of the electric heating tube 10, and the output end of the junction box 12 is connected with a heating element arranged inside the electric heating tube 10, that is, the heating element is controlled by the junction box 12 to heat the inside of the electric heating tube 10; the blower 13 is detachably installed on the saddle 11 near one side of the junction box 12; the output end of the blower 13 is detachably connected with a preheating transmission pipe 16; the end of the preheating transmission pipe 16 away from the blower 13 is plug-in connected to the air inlet at the bottom of the electric heating tube 10; a section of heating sheet 18 is fitted on the inner wall of the preheating transmission pipe 16; a control box is arranged on the top side of the heating sheet 18 25. The top of the control box 25 is plug-in connected to the junction box 12 through the wire 19, and the junction box 12 is used to supply power to the heating plate 18, so as to heat the air transmitted along the inside of the preheating transmission tube 16. The preheated gas is transferred to the inside of the electric heating tube 10 through the air inlet, ensuring that sufficient gas is provided to the inside of the electric heating tube 10 while increasing the efficiency of its internal heating by using the heat of the gas; at the same time, the detachable connection between the blower 13 and the saddle 11, between the two ends of the preheating transmission tube 16 and the electric heating tube 10 and the blower 13, and between the wire 19 and the junction box 12 is used to facilitate the replacement and maintenance of the blower 13 and the preheating transmission tube 16, as well as whether the gas transmitted inside the preheating transmission tube 16 is heated or not, and the junction box 12 is used to connect electricity, thereby reducing the cost of setting up an additional power structure for the operation of the heating plate 18.

[0021] In the embodiment of the present invention, refer to Figure 3 A socket 20 is installed at the top of the wire 19, and a plug 21 is provided at the bottom of the junction box 12 corresponding to the socket 20. The socket 20 and the plug 21 are plugged together to realize manual control of the wire 19 to connect electricity;

[0022] See also Figure 2 A blower outlet 17 is provided at the output end of the blower 13, and a connecting plug 24 is connected to both ends of the preheating transmission pipe 16. The air inlet corresponding to the connecting plug 24 and the blower outlet 17 are both installed with an electric heating tube air inlet pipe 15. The blower outlet 17, the connecting plug 24 and the electric heating tube air inlet pipe 15 are plugged and connected, so as to control the detachable connection between the preheating transmission pipe 16 and the blower 13 and the electric heating tube 10. At the same time, the outer surface of the connecting plug 24 is wrapped with a circle of sealing ring 23, which is used to improve the sealing performance of the connecting plug 24 after being plugged and connected with the electric heating tube air inlet pipe 15 and the blower outlet 17.

[0023] In one embodiment of the present invention, see Figure 5The outer side of the preheating transmission tube 16 near the electric heating tube air inlet pipe 15 is wrapped with a circle of heat insulation cover 22, and the heat insulation cover 22 is used to further increase the heat insulation capacity of the preheating transmission tube 16 here. Since this place is close to the electric heating tube 10, and the electric heating tube air inlet pipe 15 is connected with the inside of the electric heating tube 10 through the connecting plug 24, it is easy to transfer the high temperature heat inside the electric heating tube 10 to the outside, so the heat insulation protection strength is improved by the heat insulation cover 22;

[0024] Specifically, the cross section of the heat insulation cover 22 is set to a right triangle structure, so that the closer to the connecting plug 24, the thicker the heat insulation cover 22 is, and the stronger the heat insulation ability is.

[0025] As a preferred embodiment of the present invention, refer to Figure 4 A base is installed on the top of the blower 13, and a plurality of evenly distributed screw barrels 29 are rotatably connected to the side of the base facing the saddle 11. A screw 28 is threadedly connected to the end of each screw barrel 29, and a positioning rod 27 is connected to the end of the screw 28. A positioning hole 26 is opened on the saddle 11 corresponding to the end of the positioning rod 27. The screw barrel 29 is rotated to drive the screw 28 to move horizontally, and then the positioning rod 27 is controlled to be plugged into the positioning hole 26, so as to realize the installation and separation between the blower 13 and the saddle 11.

[0026] The working principle of the utility model is: in the idle part of the device, all the driving parts mentioned above, which refer to the power elements, electrical components and the adapted power supply, are connected through wires, and the electrical connection is completed in a sequential working order between the electrical components. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process, and does not explain the electrical control. Before use, the positioning rod 27 at its end is controlled to move horizontally by rotating the screw barrel 29, and it is plugged into the positioning hole 26 on the saddle 11, so that the blower 13 is installed on one side of the bottom of the electric heating tube 10, and then the socket 20 is plugged into the plug 21, the heating plate 18 is powered, and then the blower 13 is started to make the gas flow along the inside of the preheating transmission pipe 16, and at the same time it is heated by the heating plate 18, and then it is transferred to the inside of the electric heating tube 10 through the electric heating tube intake pipe 15 for heating.

[0027] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. Industrial blower electric heater, characterized in that, The invention comprises an electric heating tube (10), a saddle (11), a junction box (12), and a blower (13); the saddle (11) is provided with two groups and is symmetrically installed on both sides of the bottom of the electric heating tube (10); the junction box (12) is connected to one side of the end of the electric heating tube (10), and the output end of the junction box (12) is connected to a heating element arranged inside the electric heating tube (10); the blower (13) is detachably installed on the saddle (11) near the side of the junction box (12); the output end of the blower (13) is detachably connected to a preheating transmission pipe (16); one end of the preheating transmission pipe (16) away from the blower (13) is plug-connected to the air inlet at the bottom of the electric heating tube (10); a section of heating plate (18) is fitted on the inner wall of the preheating transmission pipe (16); a control box (25) is provided on one side of the top of the heating plate (18); the top of the control box (25) is plug-connected to the junction box (12) via a wire (19).

2. The industrial blower electric heater according to claim 1, characterized in that: A socket (20) is installed at the top of the wire (19), a plug (21) is provided at the bottom of the junction box (12) corresponding to the socket (20), and the socket (20) and the plug (21) are plugged into each other.

3. The industrial blower electric heater according to claim 2, characterized in that: The blower (13) is provided with a blower air outlet (17) at the output end, and a connecting plug (24) is connected to both ends of the preheating transmission pipe (16). The air inlet corresponding to the connecting plug (24) and the blower air outlet (17) are both installed with an electric heating cartridge air inlet pipe (15), and the blower air outlet (17), the connecting plug (24) and the electric heating cartridge air inlet pipe (15) are plugged and connected.

4. The industrial blower electric heater according to claim 3, characterized in that: The outer surface of the connecting plug (24) is wrapped with a sealing ring (23).

5. The industrial blower electric heater according to claim 4, characterized in that: The outer side of the preheating transmission pipe (16) close to the air inlet pipe (15) of the electric heating cylinder is wrapped with a circle of heat insulation cover (22).

6. The industrial blower electric heater according to claim 5, characterized in that: A base is installed on the top of the blower (13), and a plurality of evenly distributed screw barrels (29) are rotatably connected to one side of the base facing the saddle (11), and a screw rod (28) is threadedly connected to the end of each screw barrel (29), and a positioning rod (27) is connected to the end of the screw rod (28), and a positioning hole (26) is opened on the saddle (11) corresponding to the end of the positioning rod (27).

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