An explosion-proof constant temperature heater

Abstract

This utility model discloses an explosion-proof constant temperature heater, which includes an insulation chamber, a heating plate, a base, a temperature controller, a connecting wire, and a fixing column. This new invention is mainly used in situations requiring heating in explosion-proof areas and for analytical purposes.

Description

Technical Field

[0001] This utility model relates to a device, specifically an explosion-proof constant temperature heater device. Background Technology

[0002] In fields such as biochemistry and pharmaceuticals, thin-layer chromatography (TLC) is an important tool for monitoring production processes, leading to its widespread application in quality control, intermediate detection, and process optimization. It features rapid efficiency, fast analysis speed, low cost, ease of operation, intuitive and visual results, and quick condition optimization.

[0003] In thin-layer chromatography analysis, heating equipment is a crucial component and step, primarily serving the following functions:

[0004] 1. Stationary phase activation. Since silica gel plates are hygroscopic, adsorbents such as silica gel G easily absorb moisture, reducing their activity and affecting separation efficiency. Activation at 110℃ for 30 minutes before use can remove moisture and improve adsorption performance (especially for non-polar developing systems).

[0005] 2. Remove residual developing solvent. High-boiling-point developing solvents: If a highly polar developing solvent (such as n-butanol, ethyl acetate, etc.) is used, it evaporates slowly at room temperature, which may cause spot diffusion or background interference. Low-temperature heating can accelerate solvent evaporation and improve the clarity of subsequent color development or detection.

[0006] 3. Heating for Colorimetric Reactions. For non-colorimetric compounds: If the analyte is colorless and has no UV absorption, it needs to be reacted with a colorimetric reagent (such as sulfuric acid-ethanol, ninhydrin, etc.) before observation. Some colorimetric reactions require heating to accelerate the reaction or enhance the colorimetric effect. For example, when amino acids are colorimetrically reacted with ninhydrin, heating to around 100℃ is often required to generate purple spots. Heating can improve reaction sensitivity and colorimetric speed, avoiding false negatives due to incomplete reactions.

[0007] Due to the nature of the application areas, thin-layer chromatography analysis in the production process is often used in Class A explosion-proof workshops, where traditional multi-purpose furnaces, hair dryers, and hot air guns cannot be used. If multi-purpose furnaces, hair dryers, and hot air guns are required, they must be placed in non-explosion-proof areas, causing inconvenience. Furthermore, the drying and developing of the developing and colorimetric agents often involves the volatilization of flammable solvents, posing a risk of open flame.

[0008] This invention proposes using an explosion-proof constant temperature heater, which can effectively solve the safety risks of this process. Utility Model Content

[0009] The technical problem this invention aims to solve is the safety risks associated with using non-explosion-proof equipment for heating in explosion-proof areas. The objective is to provide an explosion-proof constant-temperature heater that, through its explosion-proof safety design, enables rapid analysis within explosion-proof areas, thereby improving production efficiency.

[0010] This utility model is achieved through the following technical solution:

[0011] An explosion-proof constant temperature heater is provided, comprising an insulation chamber 1, a heating plate 2, a base 3, a fixing column 6, a temperature controller 4, and a connecting line 5. The heating plate 2 is located inside the insulation chamber 1. The base 3 is connected to and supports the insulation chamber 1 by the fixing column 6. The temperature controller 4 is fixed to the base 3 by bolts or hooks. The control signal and power supply of the temperature controller 4 are connected to the base 3 and the heating plate 2 through the connecting line 5.

[0012] In one embodiment, the heating plate 2 is a cavity structure, with a built-in heating tube, thermometer, heating oil, and thermistor.

[0013] In one embodiment, the heating plate 2 is a sealed heating chamber in which the heating tube and thermometer are placed.

[0014] In one embodiment, the base 3 serves as a circuit integration mounting box and provides support and stability to the insulation chamber.

[0015] In one embodiment, the items heated by the heating plate 2 include silicone plates, glass dishes, or crucibles.

[0016] In one embodiment, the insulation chamber 1 is a five-sided cavity structure filled with aluminum silicate or glass wool and encased in stainless steel or corrosion-resistant material.

[0017] In one embodiment, the base 3 is an explosion-proof cavity used for electrical distribution and connection.

[0018] In one embodiment, the temperature controller 4 is a precision CNC rotary explosion-proof temperature controller.

[0019] In one embodiment, the connecting line 5 is an explosion-proof connecting line used for signal transmission and power supply.

[0020] The explosion-proof constant temperature heater provided by this utility model places the heating tube inside a sealed heating plate cavity. In the event of heating tube damage, the heat transfer oil is non-conductive and sealed within the heating plate, preventing the generation of open flames or other ignition sources. Furthermore, the base and temperature controller are both explosion-proof components, thus achieving overall explosion-proof protection for the equipment.

[0021] The working principle of this invention is as follows: A heating element is suspended and sealed within the cavity of a heating plate, which is filled with heat-conducting oil. A thermometer probe installed inside the heating plate transmits the temperature resistance signal to the controller. During use, the target temperature is set via the temperature controller knob. When the heating plate temperature falls below the set temperature, the heating element heats the heat-conducting oil. Heating stops when the heating plate reaches the target temperature, thus achieving a constant temperature effect. Simultaneously, a thermistor inside the cavity automatically cuts off the power supply if the temperature exceeds the equipment's maximum operating temperature, ensuring safe operation of the equipment.

[0022] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0023] 1. This utility model is an explosion-proof constant temperature heater. It achieves explosion-proof equipment through heating and electrical sealing, and can be used in explosion-proof areas, reducing the time and cost of sending samples to non-explosion-proof areas for analysis;

[0024] 2. This utility model effectively avoids the problem of continuous heating when a malfunction occurs, such as with a multi-functional oven, by cutting off the power supply through a thermistor. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a schematic diagram of the appearance of this utility model. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0028] Example 1

[0029] An explosion-proof constant temperature heater includes an insulation chamber 1, a heating plate 2, a base 3, a fixing column 6, a temperature controller 4, and a connecting wire 5. The heating plate 2 is located inside the insulation chamber 1. The base 3 is connected to and supports the insulation chamber 1 using the fixing column 6. The temperature controller 4 is fixed to the base 3 by bolts or hooks. The temperature controller 4's control signal and power supply are connected to the base 3 and the heating plate 2 via the connecting wire 5. The heating plate 2 is a hollow structure containing a heating tube, thermometer, heating oil, and thermistor. The base 3 serves as a circuit integration mounting box and provides support and stability to the insulation chamber. The insulation chamber 1 is a five-sided cavity structure filled with aluminum silicate or glass wool and encased in stainless steel or corrosion-resistant material. The base 3 is an explosion-proof cavity used for electrical distribution and connection. The temperature controller 4 is a precision CNC rotary explosion-proof temperature controller. The connecting wire 5 is an explosion-proof connecting wire used for signal transmission and power supply.

[0030] The specific implementation method of this embodiment is as follows: Connect the device to the power supply using an explosion-proof socket, turn on the main power switch and the heating switch, rotate the temperature control knob to set the target temperature, at which point the heating chamber will start heating. When the target temperature is reached, the item to be heated can be placed in the heating chamber. After heating is complete, rotate the temperature control knob back to zero. Turn off the main power switch and the heating switch.

[0031] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An explosion-proof constant temperature heater, characterized in that, The device includes a heat preservation chamber (1), a heating plate (2), a base (3), a fixing column (6), a temperature controller (4), and a connecting line (5). The heating plate (2) is located inside the heat preservation chamber (1). The base (3) is connected to and supports the heat preservation chamber (1) using the fixing column (6). The temperature controller (4) is fixed to the base (3) by bolts or hooks. The temperature controller (4) controls the signal and supplies power to the base (3) and the heating plate (2) through the connecting line (5).

2. The explosion-proof constant temperature heater according to claim 1, characterized in that, The heating plate (2) has a hollow structure and contains a heating tube, thermometer, heating oil, and thermistor.

3. The explosion-proof constant temperature heater according to claim 1, characterized in that, The heating plate (2) is a sealed heating chamber in which the heating tube and thermometer are placed.

4. The explosion-proof constant temperature heater according to claim 1, characterized in that, The base (3) serves as a circuit integration mounting box and provides support and stability for the insulation chamber.

5. The explosion-proof constant temperature heater according to any one of claims 1-4, characterized in that, The items heated by the heating plate (2) include silicone plates, glass dishes, or crucibles.

6. The explosion-proof constant temperature heater according to any one of claims 1-4, characterized in that, The insulated chamber (1) is a five-sided cavity structure filled with aluminum silicate or glass wool and covered with stainless steel or corrosion-resistant materials.

7. The explosion-proof constant temperature heater according to any one of claims 1-4, characterized in that, The base (3) is an explosion-proof cavity used for electrical distribution and connection.

8. The explosion-proof constant temperature heater according to any one of claims 1-4, characterized in that, The temperature controller (4) is a precision CNC rotary explosion-proof temperature controller.

9. The explosion-proof constant temperature heater according to any one of claims 1-4, characterized in that, The connecting line (5) is an explosion-proof connecting line used for signal transmission and power supply.

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