Explosion-proof module heating device
By introducing a design that the air guide member communicates with the atmosphere into the heating device, the risk of explosive dangerous gas entering the heating device is solved, and the safety and sealing of the equipment are improved, and it is suitable for high temperature, high humidity, flammable and explosive environments.
Patent Information
- Application Number
- CN202422331713.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-24
AI Technical Summary
During the drying process of existing heating devices, explosive dangerous gases are easily entered into the heating device and come into contact with the heating body power supply, resulting in explosion risk, and the housing and heating parts are deformed due to changes in the pressure in the cavity, resulting in a reduction in sealing.
An explosion-proof module heating device is designed, including a shell, a heating member and an air guide. One end of the air guide is in communication with the atmosphere in the cavity, maintaining positive pressure in the cavity, preventing explosive and dangerous gas from entering the cavity, and performing intake and exhaust operations through the air guide to avoid deformation of the shell and heating member.
Effectively prevent explosive and dangerous gas from contacting the heating parts, reduce explosion risks, protect equipment safety, improve housing sealing, and prevent deformation. It is suitable for high temperature, high humidity, flammable and explosive environments.
Smart Images
Figure CN223179247U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drying equipment, in particular to an explosion-proof module heating device. Background Art
[0002] With the development of modern industry, heating devices play an increasingly important role in the production process. Especially in processes that require precise temperature control, such as the chemical, pharmaceutical, and food processing industries, the performance of heating devices is directly related to product quality and production safety.
[0003] During the drying process of materials by existing heating devices, the explosive hazardous gases generated are likely to enter the heating devices and come into contact with the heating body power supply in the heating element, such as the conductive layer and the wiring position, resulting in an explosion. To solve this problem, a sealed cavity is formed by the heating element and the housing. The specific structure of the heating device is as follows: The heating device includes a housing with an open end, a cavity, and a heating element. The heating element seals the opening of the housing, so that the cavity formed by the heating element and the housing is a sealed structure, which can prevent the explosive hazardous gases generated during the drying of materials from entering the cavity. Although the housing and the heating element are hermetically connected, to a certain extent, it can prevent explosive hazardous gases from entering the cavity. However, the heating element also heats the air in the cavity, causing a change in the pressure inside the cavity, which will squeeze the housing and the heating element. The housing and the heating element are deformed due to the extrusion, and the sealing performance of the cavity is reduced. The explosive hazardous gases generated during the heating process of the material to be heated are likely to enter the cavity, and the explosive hazardous gases will come into contact with the heating element, easily resulting in an explosion risk, causing casualties and equipment damage. Some devices use a simple ventilation system to exhaust gases, but in many cases, this is not sufficient to prevent the accumulation of flammable gases. Summary of the Utility Model
[0004] Aiming at the problem of the existing heating device that the heating element heats the air in the cavity, resulting in a change in the pressure inside the cavity, causing deformation of the housing and the heating element, and easily leading to the entry of explosive hazardous gases into the cavity and coming into contact with the heating element to generate an explosion risk, the present application provides an explosion-proof module heating device.
[0005] The utility model provides an explosion-proof module heating device, which includes a housing, a heating element, and a gas guiding member. One end of the housing is provided with an opening, the heating element seals the opening, and a cavity is formed between the heating element and the interior of the housing. One end of the gas guiding member is arranged in the cavity, and the end of the gas guiding member far away from the cavity is communicated with the atmosphere.
[0006] Preferably, one end of the gas guiding member penetrates through the housing and extends into the cavity, and the gas guiding member is hermetically connected to the housing.
[0007] Preferably, the explosion-proof module heating device further includes at least one heat insulation member, one side of the heat insulation member abuts against the side of the heating member facing the housing, the heat insulation member is disposed in the cavity, and the side of the heat insulation member away from the heating member abuts against the housing.
[0008] Preferably, the explosion-proof module heating device further includes an explosion-proof member, the explosion-proof member is disposed on the side of the heating member away from the housing, and the projection of the heating member on the plane where the explosion-proof member is located is within the explosion-proof member.
[0009] Preferably, the explosion-proof member is of a hollow structure.
[0010] Preferably, the heating member includes a substrate, a conductive layer, a heating layer, and a protective layer. The conductive layer is disposed on the side of the substrate facing the housing, the heating layer is disposed on the side of the conductive layer away from the substrate, and the protective layer is disposed on the side of the heating layer away from the conductive layer;
[0011] The conductive layer, the heating layer, and the protective layer are all disposed in the cavity.
[0012] Preferably, the heating member is an infrared heating plate, and the heating layer is an infrared heating layer.
[0013] Preferably, the explosion-proof module heating device further includes a plurality of temperature sensors, and the temperature test ends of the plurality of temperature sensors are spaced apart on the surface of the protective layer facing the cavity.
[0014] Preferably, the explosion-proof module heating device further includes a plurality of explosion-proof sealed joints, the plurality of explosion-proof sealed joints penetrate through the surface of the housing, and the explosion-proof sealed joints are hermetically connected to the housing;
[0015] One end of the conductive layer is connected to a first wire, and the end of the first wire away from the conductive layer passes through the explosion-proof sealed joint and is connected to an external power source.
[0016] Preferably, one end of the temperature sensor is connected to a second wire, and the end of the second wire away from the temperature sensor passes through the explosion-proof sealed joint and is connected to an external power source.
[0017] For the explosion-proof module heating device provided by the present application, one end of the air guiding member is disposed in the cavity, and the end of the air guiding member away from the cavity is in communication with the atmosphere. By using the air guiding member to perform air intake and exhaust operations on the cavity, the positive pressure in the cavity can be maintained, and the change of the pressure in the cavity can be avoided, so as to prevent the housing and the heating member from being deformed by extrusion, thereby preventing the explosive dangerous gas generated by drying the material from entering the cavity and contacting the heating member to generate an explosion risk. Description of the Drawings
[0018] Figure 1 It is a schematic structural diagram of an explosion-proof module heating device provided by an embodiment of the present utility model;
[0019] Figure 2 It is a schematic cross-sectional structure diagram of an explosion-proof module heating device provided by an embodiment of the present utility model.
[0020] 1. Explosion-proof part; 2. Shell; 3. Heating element; 301. Substrate; 302. Conductive layer; 303. Heating layer; 304. Protective layer; 5. Heat insulation part; 6. Temperature sensor. Specific embodiments
[0021] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0022] In order to illustrate the technical solution of the present utility model, it will be described below through specific embodiments.
[0023] As Figure 1 - Figure 2 shown, an embodiment provided by the present application provides an explosion-proof module heating device, including a shell 2, a heating element 3 and a gas guiding element. One end of the shell 2 is provided with an opening, the heating element 3 seals the opening, and a cavity is formed between the heating element 3 and the inside of the shell 2. One end of the gas guiding element is arranged in the cavity, and the end of the gas guiding element away from the cavity is communicated with the atmosphere.
[0024] Specifically, during the heating process of the heating element 3 on the material to be heated, the material to be heated generates explosive dangerous gases. The easily explosive gases enter the heating element 3 and come into contact with the heating body power supply in the heating element 3, such as the conductive layer 302 and the wiring position, which is likely to generate electric sparks and cause explosion risks; if the temperature on the surface of the heating body in the heating element 3, such as the heating layer 303, is too high, it may also come into contact with the easily explosive gases and cause explosion risks. The heating element 3 seals the opening of the shell 2, and a cavity is formed between the heating element 3 and the inside of the shell 2. The material to be dried is arranged on the side of the heating element 3 facing away from the cavity, and the heating element 3 heats the material to be dried through heat conduction; the temperature in the cavity in this structure is relatively high, but because the cavity is sealed, it prevents explosive dangerous gases from entering, avoiding the contact between the easily explosive dangerous gases and the heating body power supply in the heating element 3, thereby avoiding the generation of explosion risks.
[0025] One end of the air guiding member is arranged inside the cavity, and the end of the air guiding member away from the cavity is communicated with the atmosphere. By using the air guiding member to perform air intake and exhaust operations on the cavity, the positive pressure inside the cavity can be maintained, preventing the pressure inside the cavity from changing and squeezing and deforming the housing 2 and the heating member 3, thereby preventing the explosive hazardous gas generated by the dried material from entering the cavity and contacting the heating member 3 to generate an explosion risk.
[0026] The heating member 3 includes electromagnetic waves that can generate radiant heat sources, such as microwaves, infrared rays, visible light, ultraviolet rays, etc. For example, the heating member 3 can be an infrared heating plate.
[0027] The air guiding member can be an air duct.
[0028] For the explosion-proof module heating device provided by the present application, one end of the air guiding member is arranged inside the cavity, and the end of the air guiding member away from the cavity is communicated with the atmosphere. Using the air guiding member to perform air intake and exhaust operations on the cavity can maintain the positive pressure inside the cavity, prevent the pressure inside the cavity from changing, squeeze and deform the housing 2 and the heating member 3, thereby preventing the explosive hazardous gas generated by the dried material from entering the cavity and contacting the heating member 3 to generate an explosion risk.
[0029] In some embodiments, one end of the air guiding member penetrates through the housing 2 and extends into the cavity, and the air guiding member is hermetically connected to the housing 2.
[0030] Specifically, one end of the air guiding member penetrates through the housing 2 and extends into the cavity, which is convenient for the air guiding member to communicate the atmosphere with the cavity, perform air intake and exhaust operations on the cavity, maintain the positive pressure inside the cavity, and prevent the explosive hazardous gas generated by the dried material from entering the cavity and contacting the heating member 3 to generate an explosion risk.
[0031] The air guiding member is hermetically connected to the housing 2 to improve the sealing performance of the housing 2 and prevent the explosive hazardous gas generated during the heating process of the material to be dried from entering the cavity.
[0032] In some embodiments, the air guiding member and the housing 2 are hermetically connected through a high-temperature sealing strip.
[0033] Specifically, at the connection between the air guiding member and the housing 2, a high-temperature sealing strip is used to tightly seal the connection position between the air duct and the housing 2 to achieve the hermetic connection between the air guiding member and the housing 2.
[0034] In some embodiments, the explosion-proof module heating device further includes a heat insulation member 5, the heat insulation member 5 is arranged inside the cavity, and the side of the heat insulation member 5 away from the heating member 3 abuts against the housing 2.
[0035] Specifically, the thermal insulation member 5 serves to isolate heat. The thermal insulation member 5 is arranged on the side of the heating member 3 facing the shell 2, and the thermal insulation member 5 is arranged in the cavity to achieve heat isolation, so that the heat generated by the heating member 3 can be transferred in a single direction, thereby improving the heat transfer efficiency.
[0036] In some embodiments, the thermal insulation member 5 is made of cotton, glass or polyurethane foam.
[0037] Specifically, the thermal insulation member 5 may be thermal insulation cotton.
[0038] The heat insulating member 5 can be connected to the bottom wall and the side wall of the shell 2 by gluing or other connection methods.
[0039] In some embodiments, the explosion-proof module heating device further includes an explosion-proof component 1 , which is arranged on the side of the heating component 3 facing away from the shell 2 , and the projection of the heating component 3 on the plane where the explosion-proof component 1 is located is located inside the explosion-proof component 1 .
[0040] Specifically, the explosion-proof component 1 is configured to prevent the risk of foreign objects falling and hitting the heating component 3, thereby damaging the heating component 3. The explosion-proof component 1 is also configured to prevent the risk of foreign objects falling and hitting the material to be dried, thereby causing the material to be dried to break, thereby causing the material to be dried to directly contact the heating component 3, thereby causing the risk of heat storage and combustion.
[0041] The projection of the heating element 3 on the plane where the explosion-proof element 1 is located is located inside the explosion-proof element 1 , which means that the area of the explosion-proof element 1 is larger than that of the heating element 3 and can protect the heating element 3 .
[0042] In some embodiments, the explosion-proof component 1 is a hollow structure.
[0043] Specifically, the explosion-proof component 1 is configured as a hollow structure, which can not only provide protection but also reduce costs and product weight.
[0044] In some embodiments, the explosion-proof component 1 is a mesh structure or a fence structure.
[0045] In some embodiments, the explosion-proof component 1 is made of metal or alloy material, and the alloy material may be, for example, stainless steel, carbon steel, or zinc-aluminum alloy.
[0046] In some embodiments, as Figure 2 As shown, the heating element 3 includes a substrate 301, a conductive layer 302, a heating layer 303 and a protective layer 304. The conductive layer 302 is provided on the side of the substrate 301 facing the shell 2, the heating layer 303 is provided on the side of the conductive layer 302 facing away from the substrate 301, and the protective layer 304 is provided on the side of the heating layer 303 facing away from the conductive layer 302.
[0047] Specifically, the conductive layer 302 is used for electrically connecting to an external power source to supply electrical energy to the heating element 3. As Figure 2 shown, the conductive layer 302 is disposed on one surface of the substrate 301 facing the housing 2, and the conductive layer 302 does not cover the entire surface of the substrate 301. The conductive layer 302 is disposed on both sides of the substrate 301.
[0048] The heating layer 303 is used to generate heat to heat the material to be dried. The protective layer 304 is used to protect the heating layer 303 to prevent the heating layer 303 from being damaged, and can also prevent explosive hazardous gases from directly contacting the damaged heating layer 303, reducing the explosion risk. The protective layer 304 is also used to protect the conductive layer 302 to prevent the conductive layer 302 from being damaged. As Figure 2 shown, the protective layer 304 includes a planar section and two vertical sections. The planar section is disposed on the side of the heating layer 303 facing away from the conductive layer 302. In the thickness direction of the heating layer 303, the two vertical sections are disposed on both sides of the conductive layer 302 and the heating layer 303.
[0049] In some embodiments, the conductive layer 302, the heating layer 303, and the protective layer 304 are all disposed in the cavity.
[0050] Specifically, as Figure 2 shown, the conductive layer 302, the heating layer 303, and the protective layer 304 are all disposed in the cavity, which can protect the conductive layer 302, the heating layer 303, and the protective layer 304.
[0051] The temperature on the surface of the heating layer 303 is generally relatively high. By disposing the heating layer 303 in the cavity and sealing the cavity to prevent explosive hazardous gases from entering, it can avoid explosive hazardous gases from contacting the surface of the heating layer 303 and avoid the risk of explosion. The conductive layer 302 and the wire connection position of the conductive layer 302 connected to the external power source are also located in the cavity. The cavity is sealed to prevent explosive hazardous gases from entering and contacting the conductive layer 302 and the connection position, avoiding the risk of explosion.
[0052] In some embodiments, the heating element 3 is an infrared heating plate, and the heating layer 303 is an infrared heating layer 303.
[0053] Specifically, the heating layer 303 is an infrared heating layer 303. After the infrared heating plate is powered on, it generates heat and infrared rays, thereby heating the cavity.
[0054] In some embodiments, the material of the substrate 301 is glass, ceramic, etc. The material of the conductive layer 302 is conductive copper paste, conductive silver paste, conductive gold paste, etc. The material of the infrared heating layer 303 is carbon fiber, carbon nanotube, graphene, etc.
[0055] On one side of the substrate 301 facing away from the conductive layer 302, the material to be heated is arranged. The heat of the heating layer 303 is transferred to the substrate 301 through heat conduction, and the substrate 301 heats the material to be heated by heating the air.
[0056] In some embodiments, the explosion-proof module heating device further includes a plurality of temperature sensors 6, and the temperature test ends of the plurality of temperature sensors 6 are arranged at intervals on the surface of the protective layer 304 facing the cavity.
[0057] Specifically, the temperature test ends of the plurality of temperature sensors 6 are arranged at intervals on the surface of the protective layer 304 facing the cavity, which can test the temperatures of multiple positions of the heating element 3, monitor the temperature of the heating element 3 in real time, and prevent uneven heating caused by excessive local temperature or damage to the heating element 3.
[0058] In some embodiments, the temperature sensor 6 is arranged between the protective layer 304 and the heat insulation member 5.
[0059] The temperature sensor 6 is connected to the protective layer 304 by means of pasting. The temperature sensor 6 is arranged between the protective layer 304 and the heat insulation member 5, which can more accurately test the temperature of the heating element 3, so as to adjust parameters such as the power of the heating element 3 according to the temperature displayed by the temperature sensor 6 and realize changing the heating temperature of the heating element 3.
[0060] In some embodiments, the temperature sensor 6 is a thermocouple.
[0061] In some embodiments, the explosion-proof module heating device further includes a plurality of explosion-proof sealing joints, and the plurality of explosion-proof sealing joints penetrate through the surface of the housing 2, and the explosion-proof sealing joints are hermetically connected to the housing 2;
[0062] One end of the conductive layer 302 is connected with a first wire, and the end of the first wire away from the conductive layer 302 passes through the explosion-proof sealing joint and is connected to an external power supply.
[0063] Specifically, the explosion-proof sealing joint is hermetically connected to the housing 2 to prevent explosive gas from entering the cavity and contacting the heating element 3 to generate an explosion risk. The explosion-proof sealing joint plays an explosion-proof role and avoids the explosion caused by electric sparks between the wire and the explosive dangerous gas.
[0064] One end of the conductive layer 302 is connected with a first wire, and the end of the first wire away from the conductive layer 302 passes through the explosion-proof sealing joint and is connected to an external power supply, so as to supply electric energy to the heating element 3 and enable the heating element 3 to work.
[0065] The connection part of the first wire and the conductive layer 302 is sealed with insulating glue for insulation protection.
[0066] The explosion-proof sealing joint includes an explosion-proof sealing gland joint.
[0067] In some embodiments, one end of the temperature sensor 6 is connected to a second wire, and the end of the second wire away from the temperature sensor 6 passes through the explosion-proof sealing joint and is connected to an external power supply.
[0068] One end of the temperature sensor 6 is connected to a second wire, and the end of the second wire away from the temperature sensor 6 passes through the explosion-proof sealing joint and is connected to an external power supply, realizing the function of supplying electrical energy to the temperature sensor 6 so that the temperature sensor 6 can work.
[0069] The cavity formed by the heating element 3 and the housing 2 forms a sealed structure. The explosion-proof sealing joint is hermetically connected to the housing 2, and when the first wire and the second wire are led out through the explosion-proof sealing joint, the first wire and the second wire are also hermetically connected to the explosion-proof sealing joint; all can prevent the explosion-proof gas from entering the cavity. The conductive layer 302, the heating layer 303, the protective layer 304, and the temperature sensor 6 are all located in the cavity, playing a protective role to prevent the generation of electric sparks and the risk of fire and explosion.
[0070] For the explosion-proof module heating device provided by the present application, the material to be dried is arranged on the side of the heating element 3 away from the housing 2. After the heating element 3 is powered on, the heating element 3 generates heat to heat the material to be dried. The overall explosion-proof module heating device is a closed structure and does not come into contact with the explosive gas generated by the material to be dried. The air guiding member is connected to the outside to control the maintenance of positive pressure in the cavity, preventing deformation of the heating element 3 and the housing 2, and further preventing the explosive gas generated by the material to be dried from entering the cavity. The explosion-proof module heating device provided by the present application is applicable to heating environments with high temperature, high humidity, and high concentration of flammable and explosive gases.
[0071] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.
Claims
1. An explosion-proof module heating device, characterized in that, It includes a housing, a heating element and a gas guiding element. One end of the housing is provided with an opening, the heating element seals the opening, and a cavity is formed between the heating element and the interior of the housing. One end of the gas guiding element is arranged in the cavity, and the end of the gas guiding element away from the cavity communicates with the atmosphere.
2. The explosion-proof module heating device according to claim 1, characterized in that One end of the gas guiding element penetrates through the housing and extends into the cavity, and the gas guiding element is sealingly connected to the housing.
3. The explosion-proof module heating device according to claim 1, characterized in that, The explosion-proof module heating device further includes at least one heat insulation element, the heat insulation element is arranged in the cavity, and the side of the heat insulation element away from the heating element abuts against the housing.
4. The explosion-proof module heating device according to claim 1, wherein, The explosion-proof module heating device further includes an explosion-proof element, the explosion-proof element is arranged on the side of the heating element facing away from the housing, and the projection of the heating element on the plane where the explosion-proof element is located is within the explosion-proof element.
5. The explosion-proof module heating device according to claim 4, characterized in that, The explosion-proof element is a hollow structure.
6. The explosion-proof module heating device according to claim 1, characterized in that, The heating element includes a substrate, a conductive layer, a heating layer and a protective layer. The conductive layer is arranged on the side of the substrate facing the housing, the heating layer is arranged on the side of the conductive layer facing away from the substrate, and the protective layer is arranged on the side of the heating layer facing away from the conductive layer; The conductive layer, the heating layer and the protective layer are all arranged in the cavity.
7. The explosion-proof module heating device according to claim 6, wherein The heating element is an infrared heating plate, and the heating layer is an infrared heating layer.
8. The explosion-proof module heating device according to claim 6, wherein, The explosion-proof module heating device further includes a plurality of temperature sensors, and the temperature testing ends of the plurality of temperature sensors are arranged at intervals on the surface of the protective layer facing the cavity.
9. The explosion-proof module heating device according to claim 8, characterized in that, The explosion-proof module heating device further includes a plurality of explosion-proof sealing joints, the plurality of explosion-proof sealing joints penetrate through the surface of the housing, and the explosion-proof sealing joints are sealingly connected to the housing; One end of the conductive layer is connected with a first wire, and the end of the first wire away from the conductive layer passes through the explosion-proof sealing joint and is connected to an external power supply.
10. The explosion-proof module heating device according to claim 9, characterized in that, One end of the temperature sensor is connected with a second wire, and the end of the second wire away from the temperature sensor passes through the explosion-proof sealing joint and is connected to an external power supply.