A far infrared electric heating device for a reaction kettle

Abstract

The utility model relates to the technical field of reactor heating devices, and specifically to a far-infrared electric heating device for a reactor, comprising a reactor body and a far-infrared electric heating device arranged at the bottom of the reactor body, the far-infrared electric heating device comprising a heating device shell, a cavity is arranged between the heating device shell and the reactor body, an insulation layer and an electric heating element are arranged in sequence on the inner wall of the heating device shell in the cavity, a junction box is arranged on one side of the heating device shell, and an inflation interface and an exhaust interface connected to the cavity are respectively arranged on the other side of the heating device shell. The utility model adopts a positive pressure inflation structure to fill the cavity with inert gas, thereby preventing the electric heating element from oxidative denaturation, and filling the entire cavity with inert gas, which can squeeze out other gas media and improve safety.

Description

Technical Field

[0001] The utility model relates to the technical field of reactor heating devices, in particular to a far-infrared electric heating device for a reactor. Background Art

[0002] The reactor heating device is specially used to heat the reactor. When the substance solution is heated in the reactor, the temperature needs to be increased and maintained within a certain range. When the reaction is terminated, the heating needs to be stopped immediately to prevent the residual heat of the heater from affecting the reactor. The electric heating elements in the existing reactor heating devices are prone to oxidation and degeneration, which affects the service life. Utility Model Content

[0003] The utility model aims to provide a far-infrared electric heating device for a reactor in view of the defects of the prior art, so as to solve the problem that the electric heating elements in the existing reactor heating devices are easily oxidized and degenerated, thus affecting the service life.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A far-infrared electric heating device for a reactor comprises a reactor body and a far-infrared electric heating device arranged at the bottom of the reactor body, the far-infrared electric heating device comprises a heating device shell, a cavity is arranged between the heating device shell and the reactor body, an insulation layer and an electric heating element are arranged in sequence on the inner wall of the heating device shell in the cavity, a junction box is arranged on one side of the heating device shell, and an inflation interface and an exhaust interface connected to the cavity are respectively arranged on the other side of the heating device shell.

[0006] As a preferred technical solution of the utility model, an upper flange is provided on the outer side of the reaction kettle body, and a lower flange connected to the upper flange is provided on the shell of the heating device.

[0007] As a preferred technical solution of the utility model, a temperature sensor is provided on the housing of the heating device.

[0008] As a preferred technical solution of the utility model, the cavity is filled with an inert gas, and the inert gas is nitrogen.

[0009] As a preferred technical solution of the present utility model, the thermal insulation layer is made of rock wool.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model adopts a positive pressure inflation structure to fill the cavity with inert gas, thereby preventing the electric heating element from oxidative degeneration. The entire cavity is filled with inert gas, and other gas media can be squeezed out, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a top view schematic diagram of the utility model;

[0014] In the figure: 1. Reactor body; 2. Upper flange; 3. Heating device housing; 4. Lower flange; 5. Inflating interface; 6. Exhaust interface; 7. Cavity; 8. Insulation layer; 9. Temperature sensor; 10. Electric heating element; 11. Junction box. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0016] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0017] Example

[0018] refer to Figure 1-2 As shown, a far-infrared electric heating device for a reactor comprises a reactor body 1 and a far-infrared electric heating device arranged at the bottom of the reactor body 1, the far-infrared electric heating device comprises a heating device shell 3 with a U-shaped structure, a cavity 7 is arranged between the heating device shell 3 and the reactor body 1, an insulation layer 8 and an electric heating element 10 are arranged in sequence on the inner wall of the heating device shell 3 in the cavity 7, a junction box 11 is arranged on one side of the heating device shell 3, and an inflation interface 5 and an exhaust interface 6 connected to the cavity 7 are respectively arranged on the other side of the heating device shell 3, the exhaust interface 6 is used to discharge the gas in the cavity 7, and the inflation interface 5 is used to fill the cavity 7 with gas.

[0019] Furthermore, an upper flange 2 is coaxially welded to the outer side of the reactor body 1 , and a lower flange 4 bolted to the upper flange is provided on the heating device housing 3 , so that the far-infrared electric heating device is installed at the bottom of the reactor body 1 .

[0020] Furthermore, a temperature sensor 9 is provided on the heating device housing 3 .

[0021] Furthermore, the cavity 7 is filled with an inert gas, and the inert gas is preferably nitrogen. The provision of the inert gas can prevent the electric heating element 10 made of metal from being denatured.

[0022] Furthermore, the thermal insulation layer 8 is made of rock wool, thereby preventing heat loss and improving the heating effect of the far-infrared electric heating device.

[0023] When in use, nitrogen is filled into the cavity 7 through the inflation interface 5 using the positive pressure inflation structure. By filling the cavity 7 with nitrogen, the electric heating element 10 can be prevented from oxidative denaturation. The nitrogen fills the entire cavity 7, thereby squeezing out other gas media in the cavity 7 and improving safety. When the nitrogen in the cavity 7 reaches a suitable pressure, the far-infrared electric heating device is started for heating treatment.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A far-infrared electric heating device for a reaction kettle, comprising a reaction kettle body (1) and a far-infrared electric heating device arranged at the bottom of the reaction kettle body (1), characterized in that: The far-infrared electric heating device comprises a heating device shell (3), a cavity (7) is provided between the heating device shell (3) and the reaction kettle body (1), a heat-insulating layer (8) and an electric heating element (10) are provided in sequence on the inner wall of the heating device shell (3) in the cavity (7), a junction box (11) is provided on one side of the heating device shell (3), and an air charging interface (5) and an exhaust interface (6) respectively connected to the cavity (7) are provided on the other side of the heating device shell (3).

2. The far-infrared electric heating device for a reaction kettle according to claim 1, characterized in that: An upper flange (2) is provided on the outside of the reaction kettle body (1), and a lower flange (4) connected to the upper flange (2) is provided on the housing (3) of the heating device.

3. The far-infrared electric heating device for a reaction kettle according to claim 1, characterized in that: A temperature sensor (9) is provided on the heating device housing (3).

4. The far-infrared electric heating device for a reaction kettle according to claim 1, characterized in that: The cavity (7) is filled with an inert gas, which is nitrogen.

5. The far-infrared electric heating device for a reaction kettle according to claim 1, characterized in that: The thermal insulation layer (8) is made of rock wool.

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