Constant-temperature heating device of trace moisture meter

Abstract

The utility model relates to the technical field of heating devices, and discloses a constant-temperature heating device of a trace moisture meter, which comprises a bottom frame and an electric heating plate, a through bayonet is arranged above the surface of the bottom frame, the electric heating plate is embedded and fixed in the bayonet above the bottom frame, and a plurality of fins are uniformly fixed on the bottom surface of the electric heating plate. An air inlet is formed in the surface of the bottom frame below the middle position of the electric heating plate, a fan is mounted on the surface of the bottom frame below the air inlet, and a plurality of air ports communicated with the interior of the bottom frame are uniformly formed in the surface of the bottom frame on the outer ring of the electric heating plate. According to the technical scheme, the test cup is supported on the surface of the electric heating plate above the bottom frame, when the room temperature is low, the electric heating plate is used for directly heating a solution in the test cup, heat of the electric heating plate is transmitted to air through the fins and then is blown to the outer ring of the test cup, and the ambient temperature is also increased; and the accuracy of the final determination experiment is not influenced by a low-temperature environment.

Description

Technical Field

[0001] The utility model relates to the technical field of heating devices, in particular to a constant temperature heating device for a trace moisture meter. Background Art

[0002] The trace moisture meter is also known as the Karl Fischer moisture meter. Similar products include moisture meter, moisture meter, moisture detector, moisture measuring instrument and moisture analyzer. It is used to accurately measure the trace moisture content in samples. It is based on the principle of Karl Fischer coulometric titration and can accurately measure the trace moisture in liquids, solids and others. It is widely used in electricity, petroleum, chemical pharmaceuticals, food and solar panel cutting fluid and other fields.

[0003] When the room temperature around the device is low, the temperature of the solution will also be low, which will affect the detected solution and ultimately affect the accuracy of the measurement. Therefore, we propose a constant temperature heating device for a trace moisture meter. Utility Model Content

[0004] The utility model aims to provide a constant temperature heating device for a trace moisture meter. By placing a test cup support on the surface of an electric heating plate above a bottom frame, the electric heating plate is used to directly heat the solution in the test cup when the room temperature is low, and the heat of the electric heating plate is transferred to the air through fins and then blown to the outer ring of the test cup, so that the surrounding environmental temperature is also increased, ensuring that the accuracy of the final measurement experiment is not affected by the low temperature environment, and solving the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a constant temperature heating device for a trace moisture meter, comprising a bottom frame and an electric heating plate, wherein a through bayonet is provided above the surface of the bottom frame, and the electric heating plate is embedded and fixed in the bayonet above the bottom frame; a plurality of fins are evenly fixed on the bottom surface of the electric heating plate, an air inlet is provided on the surface of the bottom frame below the middle position of the electric heating plate, a fan is installed on the surface of the bottom frame below the air inlet, and a plurality of air ports connected to the inside of the bottom frame are evenly provided on the surface of the bottom frame of the outer circle of the electric heating plate.

[0006] By adopting the above technical solution, the test cup containing the solution is placed in the middle of the electric heating plate on the surface of the bottom plate. When the test experiment is carried out in a low temperature environment, the electric heating plate is started to directly heat the test cup and the solution, and the fan is used to blow air to the outer circle of the test cup after being heated by the fins, so that the air around the test cup is heated, thereby reducing the influence of the low temperature on the test accuracy.

[0007] Optionally, the bottom outer ring of the bottom frame is vertically supported and fixed with supporting feet, and a plurality of supporting feet are evenly arranged.

[0008] By adopting the above technical solution, the bottom frame is placed on a desktop or device surface through the support legs on the outer ring of its bottom.

[0009] Optionally, a rubber pad is fixed to the bottom surface of the support leg, and the rubber pad is fixed to the bottom of the support leg by fitting.

[0010] By adopting the above technical solution, the supporting feet are supported on the desktop or device surface in a non-slip manner through the rubber pads.

[0011] Optionally, a panel is fixed around the upper outer circle of the bottom frame, and the panel is located at the outer circle of the air outlet.

[0012] By adopting the above technical solution, the enclosure can block and prevent the hot air from spreading outwards.

[0013] Optionally, thermal insulation cotton is fixed to the inner surface of the enclosure, and the thermal insulation cotton is fixed to the inner surface of the enclosure by bonding.

[0014] By adopting the above technical solution, the heat insulation cotton can further reduce the heat loss of the outer ring of the test cup.

[0015] Optionally, a temperature sensor is fixed to the inner side of the enclosure, and the temperature sensor is placed on the surface of the heat insulation cotton on the inner side of the enclosure.

[0016] By adopting the above technical solution, the temperature of the air outside the test cup is detected by using a temperature sensor, so that the power of the electric heating plate can be adjusted when necessary.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] 1. The technical solution of the present application places the test cup support on the surface of the electric heating plate above the bottom frame. When the room temperature is low, the electric heating plate is used to directly heat the solution in the test cup, and the heat of the electric heating plate is transferred to the air through the fins and then blown to the outer circle of the test cup, so that the surrounding environmental temperature is also increased, ensuring that the accuracy of the final measurement experiment is not affected by the low temperature environment.

[0019] 2. The technical solution of the present application has a certain thermal insulation effect by fixing the enclosure around the outer circle above the bottom frame and fixing the thermal insulation cotton on the inner circle of the enclosure, thereby reducing the emission of hot air to the surroundings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the constant temperature heating device of the trace moisture meter of the utility model;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the constant temperature heating device of the trace moisture meter of the utility model;

[0023] Figure 3The utility model is a schematic diagram of the bottom structure of the electric heating plate of the constant temperature heating device of the trace moisture meter.

[0024] In the figure: 1. bottom frame; 11. bayonet; 12. air port; 13. air inlet; 14. support foot; 141. rubber pad; 2. electric heating plate; 21. fin; 3. fan; 4. enclosure; 41. thermal insulation cotton; 5. temperature sensor. DETAILED DESCRIPTION

[0025] See also Figure 1-3 The utility model provides a technical solution: a constant temperature heating device for a trace moisture meter, comprising a bottom frame 1 and an electric heating plate 2. The bottom outer ring of the bottom frame 1 is vertically supported and fixed with a support leg 14. The support leg 14 is evenly arranged with a plurality of support legs. The bottom frame 1 is supported by the support leg 14, and the bottom frame 1 can be supported on a desktop or the surface of a device. A rubber pad 141 is fixed to the bottom surface of the support leg 14 by fitting. When supporting, the rubber pad 141 can play an anti-slip role in the support placement.

[0026] A bayonet 11 is provided on the surface of the bottom frame 1, and the bayonet 11 passes through the inside and outside of the bottom frame 1. The electric heating plate 2 is embedded in the bayonet 11 fixed on the top of the bottom frame 1, and the top of the electric heating plate 2 is exposed above the bottom frame 1. The test cup support for detection is placed on the surface of the electric heating plate 2. After the electric heating plate 2 is started, the solution in the test cup can be heated.

[0027] A plurality of fins 21 are evenly fixed on the bottom surface of the electric heating plate 2, an air inlet 13 is provided on the surface of the bottom frame 1 below the middle position of the electric heating plate 2, a fan 3 is installed on the surface of the bottom frame 1 below the air inlet 13, and an air outlet of the fan 3 faces upward, so that external air can enter from the air inlet 13, and then pass through the fins 21, and the heat of the electric heating plate 2 is transferred to the fins 21 to heat the air, and a plurality of air ports 12 connected to the inside of the bottom frame 1 are evenly provided on the surface of the bottom frame 1 of the outer circle of the electric heating plate 2, and the heated air is blown upward from the air port 12 to the circle of the test cup, so that the air temperature of the outer circle of the test cup is also increased.

[0028] A panel 4 is fixed around the upper outer circle of the bottom frame 1. The panel 4 is located on the outer circle of the air outlet 12. The panel 4 can prevent the hot air blown upward from dispersing outward, and a heat insulation cotton 41 is fixed on the inner surface of the panel 4. The heat insulation cotton 41 is fixed to the inner surface of the panel 4 by bonding, and the heat insulation cotton 41 plays a role of heat insulation. A temperature sensor 5 is fixed on the inner side of the panel 4. The temperature sensor 5 is bonded to the surface of the heat insulation cotton 41 on the inner side of the panel 4, and can monitor the air temperature of the outer circle of the test cup in real time.

[0029] When in use, the bottom frame 1 is supported on the side surface of the trace moisture meter or the side table through the support feet 14 and the rubber pads 141 at the bottom thereof in a non-slip manner, the electric heating plate 2, the temperature sensor 5 and the fan 3 are all connected to the control device and powered on, and the test cup is placed in the middle of the electric heating plate 2 above the bottom frame 1. When the room temperature is low, the electric heating plate 2 is started and operated in a low-power state to heat the solution in the test cup. The heat of the electric heating plate 2 during operation is simultaneously transferred to the fins 21, so that the fan 3 is started to blow air into the upper bottom frame 1, and the air heated by the fins 21 is ejected upward from the air port 12 to the outer circle of the test cup, so that the air temperature around the test cup is also increased, ensuring that the solution in the test cup and the surroundings of the test cup are in a non-low-temperature state, ensuring that the accuracy of the subsequent detection experiment is not affected, and the temperature sensor 5 can monitor the temperature around the test cup in real time.

Claims

1. A constant temperature heating device for a trace moisture meter, comprising a bottom frame (1) and an electric heating plate (2), characterized in that: A through-going bayonet (11) is provided on the surface of the bottom frame (1), and the electric heating plate (2) is embedded and fixed in the bayonet (11) on the top of the bottom frame (1); A plurality of fins (21) are evenly fixed on the bottom surface of the electric heating plate (2); an air inlet (13) is provided on the surface of the bottom frame (1) below the middle position of the electric heating plate (2); a fan (3) is installed on the surface of the bottom frame (1) below the air inlet (13); and a plurality of air ports (12) that are in communication with the interior of the bottom frame (1) are evenly provided on the surface of the bottom frame (1) at the outer ring of the electric heating plate (2).

2. A constant temperature heating device for a trace moisture meter according to claim 1, characterized in that: The bottom outer ring of the bottom frame (1) is vertically supported and fixed with supporting feet (14), and a plurality of supporting feet (14) are evenly arranged.

3. A constant temperature heating device for a trace moisture meter according to claim 2, characterized in that: A rubber pad (141) is fixed to the bottom surface of the support leg (14), and the rubber pad (141) is fixed to the bottom of the support leg (14) by a fitting manner.

4. A constant temperature heating device for a trace moisture meter according to claim 1, characterized in that: A surrounding plate (4) is fixed around the upper outer ring of the bottom frame (1), and the surrounding plate (4) is located at the outer ring of the air port (12).

5. A constant temperature heating device for a trace moisture meter according to claim 4, characterized in that: The inner surface of the enclosure (4) is fixed with heat insulation cotton (41), and the heat insulation cotton (41) is fixed to the inner surface of the enclosure (4) by a fitting manner.

6. A constant temperature heating device for a trace moisture meter according to claim 5, characterized in that: A temperature sensor (5) is fixed on the inner side of the enclosure (4), and the temperature sensor (5) is attached to the surface of the heat insulation cotton (41) on the inner side of the enclosure (4).

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