Anti-explosion electromagnetic air heater

Abstract

The utility model relates to an anti-explosion electromagnetic air heater which comprises a base, a fan, a variable-diameter air duct, a heating device and a second mounting frame. The air inlet end of the variable-diameter air duct is fixedly connected with the fan; the air inlet end of the heating device is fixedly connected with the air outlet end of the variable-diameter air duct; the heating device comprises a first mounting frame, a plurality of finned tubes are arranged on the first mounting frame, at least one electromagnetic coil is arranged in each finned tube in a penetrating mode, mounting boxes are arranged on the two opposite sides of the first mounting frame, the two opposite ends of each finned tube penetrate into the two mounting boxes respectively, mounting seats are fixedly arranged in the mounting boxes, a plurality of binding posts are arranged on the mounting seats, and the binding posts are arranged on the mounting seats. The side wall of the mounting box is provided with a plurality of through holes for cables to penetrate, so that the winding length of the cables and the electromagnetic coil in the mounting chamber is saved, and the electromagnetic coil and the cables are convenient to disassemble, assemble and overhaul; by arranging at least two groups of shutters, the size of an outlet of the anti-explosion electromagnetic air heater is convenient to control, so that the effect of adjusting the air volume is achieved, and different use requirements are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of air heating, and specifically relates to an explosion-proof electromagnetic hot air blower. Background Art

[0002] An explosion-proof electromagnetic hot air blower is a device that uses the principle of electromagnetic induction for heating. It is usually composed of an electromagnetic heating device, a centrifugal fan, and a control device. The electromagnetic heating device is its core component, which can efficiently convert electrical energy into thermal energy to heat the air. The electromagnetic heating device includes a number of fin tubes, and electromagnetic coils are inserted into the fin tubes to heat the fin tubes. The large number of electromagnetic coils leads to complicated wiring, which is inconvenient for disassembly and maintenance. In addition, it is inconvenient to adjust the air volume and temperature for the hot air delivery of the explosion-proof electromagnetic hot air blower. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide an explosion-proof electromagnetic hot air blower, which solves the technical problems of complicated wiring of electromagnetic coils in explosion-proof electromagnetic hot air blowers and inconvenient disassembly, assembly and maintenance.

[0004] In order to solve the above problems, the technical solution of the utility model is: an explosion-proof electromagnetic hot air blower, comprising:

[0005] Base;

[0006] The fan is fixedly arranged on the base;

[0007] The variable diameter air duct is fixedly arranged on the base, and the air inlet end of the variable diameter air duct is fixedly connected to the fan;

[0008] A heating device is fixedly arranged on a base, and an air inlet end of the heating device is fixedly connected to an air outlet end of a variable diameter air duct; the heating device comprises a first mounting frame, a plurality of finned tubes are arranged on the first mounting frame, at least one electromagnetic coil is inserted in the finned tube, mounting boxes are provided on opposite sides of the first mounting frame, opposite ends of the plurality of finned tubes are respectively inserted into two mounting boxes, the mounting boxes have mounting chambers, a mounting seat is fixedly arranged in the mounting box, a plurality of terminal posts are arranged on the mounting seat, a plurality of through holes for cables to be inserted are provided on the side wall of the mounting box, the cables are electrically connected to the ends of the electromagnetic coils one by one through the terminal posts to realize separate control of the electromagnetic coils, and each electromagnetic coil passes through part or all of the plurality of finned tubes;

[0009] The second installation frame is fixedly connected to the air outlet end of the heating device, and the air outlet end of the second installation frame is provided with at least two groups of shutters which are independently controlled to be opened and closed.

[0010] Optionally, each set of shutters is equipped with a control switch which can be controlled manually and / or electrically.

[0011] Optionally, the air outlet end of the second installation frame is fixedly connected to the external air duct, and the side of the second installation frame is provided with a transparent observation window, which is aligned with part of the blades of the shutter.

[0012] Optionally, the shutters are arranged in two groups, the upper and lower groups, the transparent observation window is located between the two groups of shutters, and some blades of the upper group of shutters and some blades of the lower group of shutters are both located within the observation range of the transparent observation window.

[0013] Optionally, the upper outer wall of the fan has a cable connection interface.

[0014] Optionally, horizontal lifting rods are symmetrically arranged on two opposite sides of the base, and at least two horizontal lifting rods are arranged on each side of the base.

[0015] Optionally, the fin tube includes a mounting tube and heat dissipation fins covering the outer circumference of the mounting tube, the length of the mounting tube is greater than the axial length of the heat dissipation fins, and there is a movable gap between an axial end of the heat dissipation fin on the mounting tube and an adjacent inner wall of the mounting frame.

[0016] Optionally, the mounting seat is vertically fixed in the mounting box, the mounting grooves on the mounting seat are vertically distributed on the mounting seat, and a plurality of threading holes are vertically distributed on the side wall of the mounting box.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model explosion-proof electromagnetic hot air blower, by providing an installation box, plays a protective role for the electromagnetic coil extending outside the fin tube, a mounting seat is provided in the installation room, a plurality of mounting slots are provided on the mounting seat, and the mounting slots are provided with corresponding wiring posts, and the cable and the electromagnetic coil are electrically connected one by one through the wiring posts, and a plurality of perforations are provided for the cable to pass through one by one, so that the position of the cable is conveniently adjusted, so that the position of the cable matches the corresponding wiring post and the electromagnetic coil, and it is convenient to adjust the connection position of the cable and the electromagnetic coil according to the spatial layout of the installation room, so that the space in the installation room is effectively utilized, and it is convenient to disassemble and repair the cable and the electromagnetic coil. A plurality of perforations and a plurality of wiring posts are provided, so that multiple groups of electromagnetic coils and multiple groups of cables are conveniently installed, and the cables are connected to the electromagnetic coils one by one, so as to realize the individual control of the multiple groups of electromagnetic coils, so as to facilitate the control of the temperature of the electromagnetic heating device, and the air volume is conveniently controlled by providing multiple groups of shutters that are individually controlled to open and close, so as to adapt to different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of an explosion-proof electromagnetic hot air blower in an embodiment;

[0020] Figure 2 The three-dimensional explosion-proof electromagnetic hot air blower in the embodiment Figure 1 ;

[0021] Figure 3 The three-dimensional explosion-proof electromagnetic hot air blower in the embodiment Figure 2 ;

[0022] Figure 4 A schematic diagram of an explosion-proof electromagnetic hot air blower showing the internal structure of the side end of the heating device in the embodiment;

[0023] Figure 5 Schematic diagram of the interior of the heating device in the embodiment.

[0024] Figure numerals: 1. base; 11. horizontal lifting rod; 2. fan; 21. cable connection interface; 3. variable diameter air duct; 4. heating device; 41. first mounting frame; 42. fin tube; 421. mounting tube; 422. heat dissipating fin; 423. movable gap; 43. mounting box; 431. mounting chamber; 432. mounting seat; 4321. mounting groove; 433. terminal; 434. perforation; 5. second mounting frame; 51. shutter; 52. control switch; 53. transparent observation window. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Example: Figure 1-Figure 5 As shown, the present embodiment provides an explosion-proof electromagnetic hot air blower, comprising a base 1, a fan 2, a variable diameter air duct 3, a heating device 4 and a second mounting frame 5; the fan 2 is fixedly arranged on the base 1; the variable diameter air duct 3 is fixedly arranged on the base 1, and the air inlet end of the variable diameter air duct 3 is fixedly connected to the fan 2; the heating device 4 is fixedly arranged on the base 1, and the air inlet end of the heating device 4 is fixedly connected to the air outlet end of the variable diameter air duct 3; the heating device 4 comprises a first mounting frame 41, a plurality of fin tubes 42 are arranged on the first mounting frame 41, at least one electromagnetic coil is passed through the fin tube 42, and the first mounting frame 41 has mounting boxes 43 on opposite sides, a plurality of fin tubes The opposite ends of 42 are respectively inserted into two installation boxes 43, which have an installation chamber 431. A mounting seat 432 is fixedly arranged in the installation box 43, and a plurality of terminal posts 433 are arranged on the mounting seat 432. The side wall of the installation box 43 is provided with a plurality of through holes 434 for the insertion of cables. The ends of the cables and the electromagnetic coils are electrically connected one by one through the terminal posts 433 to realize the individual control of the electromagnetic coils. Each electromagnetic coil passes through part or all of the plurality of fin tubes 42; the second installation frame 5 is fixedly connected to the air outlet end of the heating device 4, and at least two groups of shutters 51 that are individually controlled to open and close are arranged at the air outlet end of the second installation frame 5.

[0027] Through the above-mentioned arrangement, by setting up the installation box 43, the part of the electromagnetic coil extending out of the fin tube 42 is protected, a mounting seat 432 is arranged in the installation box 43, a mounting groove 4321 is arranged on the mounting seat 432, and terminal posts 433 are installed in the installation grooves 4321 in a one-to-one correspondence, the electromagnetic coil and the cable are electrically connected through the terminal posts 433, and the arrangement of the terminal posts 433 facilitates the adjustment of the connection position of the electromagnetic coil and the cable, and a through hole 434 is arranged on the side wall of the installation box 43 to facilitate the control of the position of the cable, so that the connection positions of the cable, the electromagnetic coil and the terminal posts 433 match each other, so that the wiring in the installation room 431 is regular, saving The winding length of the cable and the electromagnetic coil in the installation chamber 431 is controlled, and the disassembly, assembly and maintenance of the electromagnetic coil and the cable are convenient; by setting at least two groups of shutters 51, it is convenient to control the outlet size of the explosion-proof electromagnetic hot air blower, so as to achieve the effect of adjusting the air volume, so as to adapt to different usage requirements, and a plurality of perforations 434 and a plurality of terminal posts 433 are set, so as to facilitate the installation of multiple groups of cables and multiple groups of electromagnetic coils. The cables are connected to the electromagnetic coils one by one, so as to facilitate the individual control of each group of electromagnetic coils, thereby facilitating the control of the heating amount of the electromagnetic heating device 4, and cooperate with the multiple groups of individually opened and closed shutters 51, which is flexible to adjust and convenient to adapt to different usage requirements.

[0028] In the explosion-proof electromagnetic heat blower of this embodiment, the fin tubes 42 of two adjacent rows are staggered in an up-and-down manner, which can change the air inlet direction, increase the contact area between the air and the fin tubes 42, and achieve a better heating effect on the air.

[0029] In the explosion-proof electromagnetic hot air blower of this embodiment, each set of shutters 51 is equipped with a control switch 52 that can be manually and / or electrically controlled. The shutters 51 can be opened and closed manually or remotely and electrically controlled, which is convenient to operate.

[0030] In the explosion-proof electromagnetic heat blower of this embodiment, the air outlet end of the second mounting frame 5 is fixedly connected to the external air duct, and the side of the second mounting frame 5 has a transparent observation window 53, which is aligned with some blades of the shutter 51. In this way, the opening and closing state of the shutter 51 can be easily observed through the transparent observation window 53.

[0031] In the explosion-proof electromagnetic heat blower of this embodiment, the shutters 51 are arranged in two groups, the upper and lower groups, the transparent observation window 53 is located between the two groups of shutters 51, and part of the leaves of the upper group of shutters 51 and part of the leaves of the lower group of shutters 51 are both located in the observation range of the transparent observation window 53. The structure is simple, and it is convenient to observe the opening and closing states of the two groups of shutters 51 at the same time through one transparent observation window 53.

[0032] In the explosion-proof electromagnetic heat blower of this embodiment, the upper outer wall of the blower 2 is provided with a cable connection interface 21. The structure is simple and the cable connection is convenient.

[0033] In the explosion-proof electromagnetic hot air blower of this embodiment, horizontal lifting rods 11 are symmetrically arranged on opposite sides of the base 1, and at least two horizontal lifting rods 11 are arranged on each side of the base 1. By arranging the horizontal lifting rods 11, it is convenient to lift and transport the explosion-proof electromagnetic hot air blower.

[0034] In the explosion-proof electromagnetic hot air blower of this embodiment, the fin tube 42 includes a mounting tube 421 and a heat dissipation fin 422 covering the outer periphery of the mounting tube 421. The length of the mounting tube 421 is greater than the axial length of the heat dissipation fin 422. There is a movable gap 423 between an axial end of the heat dissipation fin 422 on the mounting tube 421 and the adjacent inner wall of the mounting frame. By providing the movable gap 423, the fin tube 42 can be easily disassembled and assembled.

[0035] In the explosion-proof electromagnetic hot air blower of this embodiment, the mounting seat 432 is vertically fixed in the mounting box 43, the mounting grooves 4321 on the mounting seat 432 are vertically distributed on the mounting seat 432, and a plurality of threading holes are vertically distributed on the side wall of the mounting box 43. The threading holes and the terminal posts 433 are arranged in parallel, so that the arrangement of the cables and the electromagnetic coils is more regular and concise, and is convenient for disassembly, assembly and maintenance.

Claims

1. An explosion-proof electromagnetic hot air blower, characterized in that: include: Base (1); A fan (2) is fixedly mounted on the base (1); The variable diameter wind tube (3) is fixedly arranged on the base (1), and the air inlet end of the variable diameter wind tube (3) is fixedly connected to the fan (2); The heating device (4) is fixedly arranged on the base (1), and the air inlet end of the heating device (4) is fixedly connected to the air outlet end of the variable diameter air cylinder (3); the heating device (4) comprises a first installation frame (41), a plurality of fin tubes (42) are arranged on the first installation frame (41), at least one electromagnetic coil is inserted into the fin tube (42), and the first installation frame (41) has installation boxes (43) on opposite sides, and the opposite ends of the plurality of fin tubes (42) are respectively inserted into the two installation boxes (43). The installation box (43) has an installation chamber (431) in it, a mounting seat (432) is fixedly arranged in the installation box (43), a plurality of terminal posts (433) are arranged on the mounting seat (432), a plurality of through holes (434) for cables to pass through are opened on the side wall of the installation box (43), the cables are electrically connected to the ends of the electromagnetic coils one by one through the terminal posts (433) to realize the individual control of the electromagnetic coils, and each electromagnetic coil passes through part or all of the plurality of fin tubes (42); A second installation frame (5), the second installation frame (5) is fixedly connected to the air outlet end of the heating device (4), and the air outlet end of the second installation frame (5) is provided with at least two groups of shutters (51) that are independently controlled to be opened and closed.

2. An explosion-proof electromagnetic hot air blower according to claim 1, characterized in that: Each group of shutters (51) is equipped with a control switch (52) which can be controlled manually and / or electrically.

3. The explosion-proof electromagnetic hot air blower according to claim 1, characterized in that: The air outlet end of the second installation frame (5) is fixedly connected to the external air duct, and the side of the second installation frame (5) is provided with a transparent observation window (53), and the transparent observation window (53) is aligned with part of the blades of the shutter (51).

4. The explosion-proof electromagnetic hot air blower according to claim 3, characterized in that: The shutters (51) are arranged in two groups, an upper group and an lower group; the transparent observation window (53) is located between the two groups of shutters (51); part of the leaves of the upper group of shutters (51) and part of the leaves of the lower group of shutters (51) are both located within the observation range of the transparent observation window (53).

5. The explosion-proof electromagnetic hot air blower according to claim 1, characterized in that: The upper outer wall of the fan (2) is provided with a cable connection interface (21).

6. The explosion-proof electromagnetic hot air blower according to claim 1, characterized in that: Horizontal lifting rods (11) are symmetrically arranged on two opposite sides of the base (1), and at least two horizontal lifting rods (11) are arranged on each side of the base (1).

7. The explosion-proof electromagnetic hot air blower according to claim 1, characterized in that: The fin tube (42) comprises a mounting tube (421) and a heat dissipation fin (422) covering the outer circumference of the mounting tube (421); the length of the mounting tube (421) is greater than the axial length of the heat dissipation fin (422); and a movable gap (423) is provided between an axial end of the heat dissipation fin (422) on the mounting tube (421) and an adjacent inner wall of the mounting frame.

8. The explosion-proof electromagnetic hot air blower according to claim 1, characterized in that: The mounting seat (432) is vertically fixedly arranged in the mounting box (43), the mounting grooves (4321) on the mounting seat (432) are vertically distributed on the mounting seat (432), and a plurality of threading holes are vertically distributed on the side wall of the mounting box (43).

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