Small and portable vacuum drying test device

Abstract

The utility model relates to the technical field of device failure analysis and climate environment, in particular to a small and portable vacuum drying test device which comprises a box body, a vacuum system and a temperature controller, the vacuum system comprises a vacuum pump, a vacuum valve and a vacuum connecting pipe, one end of the vacuum connecting pipe is connected into the vacuum pump through a vacuum pipe connecting hole, and the other end of the vacuum connecting pipe is connected with the temperature controller. The other end of the vacuum connecting pipe is connected with the vacuum pump, a vacuum valve is arranged on the vacuum connecting pipe, and the vacuum valve is arranged in the box body. Under the condition that the box body is matched with a vacuum system, when a porous sample is poured with epoxy resin, the epoxy resin can fully permeate into pores of the sample as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical fields of device failure analysis and climate environment, and particularly relates to a small and portable vacuum drying test device. Background Art

[0002] When pouring an epoxy resin into a multi-porous structure sample in a natural environment, it is easy that the epoxy resin fails to fully penetrate into the pores of the sample during the curing process, resulting in deformation of the sample during subsequent slicing and grinding, affecting the analysis effect. In addition, when it is necessary to accelerate the curing of the epoxy resin, the heat generated by heating and the self-curing of the epoxy resin are superimposed, which may cause the sample to be overheated, causing changes in the sample and affecting the sample analysis; when the sample is stained and pulled out, the red ink penetrates into the cracks of the sample slowly under natural conditions, and may not penetrate into the interior of the cracks within a short time due to the tiny cracks in the sample, consuming time and having a poor analysis effect.

[0003] In view of this, the utility model provides a small and portable vacuum drying test device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a small and portable vacuum drying test device aiming at the deficiencies of the prior art.

[0005] To solve the above technical problems, the following technical solutions are adopted:

[0006] A small and portable vacuum drying test device includes a box body, a vacuum system and a temperature controller. The vacuum system includes a vacuum pump, a vacuum valve and a vacuum connecting pipe. One end of the vacuum connecting pipe is connected to the inside through a vacuum tube connection hole, the other end of the vacuum connecting pipe is connected to the vacuum pump, and a vacuum valve is provided on the vacuum connecting pipe. The vacuum valve is arranged inside the box body.

[0007] The temperature controller is arranged inside the box body. The temperature controller includes a temperature controller connector, a heater and a platinum thermal resistance PT100. The 1 port of the temperature controller connector is connected to the live wire, the 2 port of the temperature controller connector is connected to the live wire, one end of the heater is connected to the 3 port of the temperature controller connector, the other end of the heater is connected to the 4 port of the temperature controller connector, one end of the platinum thermal resistance PT100 is connected to the 5 port of the temperature controller connector, and the other end of the platinum thermal resistance PT100 is connected to the 6 port of the temperature controller connector.

[0008] On the basis of the above technical solution, a further improvement is that the vacuum pump is provided with an air extraction port and an exhaust port, and the air extraction port is connected to the inside of the box body through a vacuum connecting pipe.

[0009] On the basis of the above technical solution, a further improvement is that the vacuum system further includes a vacuum valve switch, which is arranged on the front side of the box body and is connected to the vacuum valve.

[0010] On the basis of the above technical solution, a further improvement is that a fuse is provided on the live wire.

[0011] On the basis of the above technical solution, a further improvement is that a gas release valve is provided on the front side of the box body.

[0012] On the basis of the above technical solution, a further improvement is that a power switch is provided on the front side of the box body, and the power switch is connected to an indicator light. -

[0013] On the basis of the above technical solution, a further improvement is that a box door is provided on the front side of the box body, and a handle is provided on the box door.

[0014] On the basis of the above technical solution, a further improvement is that a vacuum gauge is provided on the front side of the box body.

[0015] Due to the adoption of the above technical solution, the following beneficial effects are achieved:

[0016] The utility model provides a small and portable vacuum drying test device. When the box body is combined with the vacuum system, when pouring epoxy resin for multi-porous samples, the epoxy resin can be made to fully penetrate into the pores of the samples as much as possible.

[0017] When the sample needs to be heated to accelerate curing, it can be carried out in the vacuum drying box body. Under vacuum conditions, the curing temperature can be reduced (low air pressure, low temperature), avoiding excessive heating of the sample and causing changes, which affects the analysis.

[0018] When dyeing and pulling out the sample, the sample can be evacuated. Using vacuum, the red ink molecules can be evenly distributed inside the sample, so that the red ink molecules can better penetrate into the cracks of the sample.

[0019] This test device can also avoid oxidation of some samples due to heating, avoid killing biological cells under heated air and provide a dust-free particle-damaging environment.

[0020] This test device can be used for heating or evacuation treatment alone. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following further describes the present utility model with reference to the drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of a small and portable vacuum drying test device according to an embodiment of the present utility model.

[0023] Figure 2 This is a schematic structural diagram of the vacuum system and temperature controller in the embodiment of the present utility model.

[0024] Figure 3 This is a schematic structural diagram of the box body in the embodiment of the present utility model.

[0025] Reference numerals: 1 - box body; 2 - vacuum system; 3 - temperature controller; 4 - fuse; 5 - air release valve; 6 - power switch; 7 - indicator light; 8 - box door; 9 - handle; 10 - shelf.

[0026] 21 - vacuum pump; 22 - vacuum valve; 23 - vacuum connection pipe; 24 - vacuum pipe connection hole; 25 - vacuum valve switch; 26 - vacuum gauge.

[0027] 211 - air extraction port, 212 - exhaust port.

[0028] 31 - temperature controller connector; 32 - heater; 33 - platinum thermal resistance PT100. Specific embodiments

[0029] 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 drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0030] Refer to Figures 1-3 , a small and portable vacuum drying test device, comprising a box body 1, a vacuum system 2 and a temperature controller 3. The vacuum system 2 includes a vacuum pump 21, a vacuum valve 22 and a vacuum connection pipe 23. One end of the vacuum connection pipe 23 is connected to the inside through a vacuum pipe connection hole 24, the other end of the vacuum connection pipe 23 is connected to the vacuum pump 21, and a vacuum valve 22 is provided on the vacuum connection pipe 23. The vacuum valve 22 is arranged inside the box body 1. A vacuum gauge 26 is provided on the front side of the box body 1. By providing the vacuum pump 21, the vacuum valve 22 and the vacuum connection pipe 23, when it is necessary to evacuate the inside of the box body 1, by starting the vacuum valve 22, the vacuum pump 21 starts to work to evacuate the inside of the box body 1. A vacuum gauge 26 is installed inside the box body 1, and the pressure value can be displayed on the surface of the box body 1, and the internal air pressure value of the test box body 1 can be read in real time. In the case of the combination of the test box body 1 and the vacuum system 2, when pouring epoxy resin into a multi-porous sample, the epoxy resin can be made to penetrate into the pores of the sample as fully as possible.

[0031] As a further illustration of this embodiment, the temperature controller 3 is disposed inside the box body 1. The temperature controller 3 includes a temperature controller connector 31, a heater 32, and a platinum thermal resistor PT100 (33). The 1-port of the temperature controller connector 31 is connected to the live wire, and the 2-port of the temperature controller connector 31 is also connected to the live wire. One end of the heater 32 is connected to the 3-port of the temperature controller connector 31, and the other end of the heater 32 is connected to the 4-port of the temperature controller connector 31. One end of the platinum thermal resistor PT100 (33) is connected to the 5-port of the temperature controller connector 31, and the other end of the platinum thermal resistor PT100 (33) is connected to the 6-port of the temperature controller connector 31. The main feature of the platinum thermal resistor PT100 (33) is that its resistance value is 100 ohms at 0°C. The platinum thermal resistor PT100 (33) is widely used in fields such as industrial temperature measurement, and has advantages such as high measurement accuracy, good stability, and wide temperature measurement range. By measuring the change in the resistance value of the PT100 and then according to the corresponding characteristic curve, the temperature of the environment inside the box body 1 can be accurately determined, avoiding changes in the sample due to excessive heating and affecting the analysis.

[0032] As a further illustration of this embodiment, the vacuum pump 21 is provided with an air extraction port 211 and an exhaust port 212. The air extraction port 211 is connected to the inside of the box body 1 through a vacuum connection pipe 23. The air extracted by the vacuum pump 21 can be discharged through the exhaust port 212.

[0033] As a further illustration of this embodiment, the vacuum system 2 further includes a vacuum valve switch 25. The vacuum valve switch 25 is disposed on the front side of the box body 1, and the vacuum valve switch 25 is connected to the vacuum valve 22.

[0034] As a further illustration of this embodiment, a fuse 4 is provided on the live wire. The fuse 4 is used to protect the entire device and prevent accidents such as electrical fires.

[0035] As a further illustration of this embodiment, a gas release valve 5 is provided on the front side of the box body 1.

[0036] As a further illustration of this embodiment, a power switch 6 is provided on the front side of the box body 1, and the power switch 6 is connected to an indicator light 7.

[0037] As a further illustration of this embodiment, a box door 8 is provided on the front side of the box body 1, and a handle 9 is provided on the box door 8.

[0038] As a further illustration of this embodiment, a shelf 10 is provided on the box door 8.

[0039] Working principle of the utility model: First, open the box door 8, place the sample in the box body 1, start the vacuum valve 22, and let the vacuum pump 21 start working to evacuate the box body 1. A vacuum gauge 26 is installed in the box body 1, and the pressure value can be displayed on the surface of the box body 1, and the internal air pressure value of the test box body 1 can be read in real time. At the same time, control the temperature inside the box body 1 through the heater 32. By measuring the change in the resistance value of PT100 and then according to the corresponding characteristic curve, the temperature of the environment inside the box body 1 can be accurately determined, avoiding changes in the sample caused by excessive heating and affecting the analysis. When the test box body 1 is combined with the vacuum system 2, it can make the epoxy resin fully penetrate into the pores of the multi-porous sample when pouring the epoxy resin.

[0040] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the utility model to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the utility model.

Claims

1. A small and portable vacuum drying test device, comprising a box body, a vacuum system and a temperature controller, characterized in that: The vacuum system includes a vacuum pump, a vacuum valve, and a vacuum connecting pipe. One end of the vacuum connecting pipe is connected to the inside through a vacuum pipe connection hole, the other end of the vacuum connecting pipe is connected to the vacuum pump, and a vacuum valve is provided on the vacuum connecting pipe. The vacuum valve is arranged inside the box body; The temperature controller is arranged inside the box body. The temperature controller includes a temperature controller connector, a heater, and a platinum thermal resistance PT100. The 1 port of the temperature controller connector is connected to the live wire, the 2 port of the temperature controller connector is connected to the live wire, one end of the heater is connected to the 3 port of the temperature controller connector, the other end of the heater is connected to the 4 port of the temperature controller connector, one end of the platinum thermal resistance PT100 is connected to the 5 port of the temperature controller connector, and the other end of the platinum thermal resistance PT100 is connected to the 6 port of the temperature controller connector.

2. The small and portable vacuum drying test device according to claim 1, characterized in that: The vacuum pump is provided with an air suction port and an exhaust port, and the air suction port is connected to the inside of the box body through a vacuum connecting pipe.

3. The small and portable vacuum drying test device according to claim 1, wherein: The vacuum system further includes a vacuum valve switch, which is arranged on the front side of the box body and is connected to the vacuum valve.

4. A small and portable vacuum drying test device according to claim 1, characterized in that: A fuse is provided on the live wire.

5. A small and portable vacuum drying test device according to claim 1, characterized in that: A gas release valve is provided on the front side of the box body.

6. The small and portable vacuum drying test device according to claim 1, characterized in that: A power switch is provided on the front side of the box body, and the power switch is connected to an indicator light.

7. A small and portable vacuum drying test device according to claim 1, characterized in that: A box door is provided on the front side of the box body, and a handle is provided on the box door.

8. A small and portable vacuum drying test device according to claim 1, characterized in that A vacuum gauge is provided on the front side of the box body.

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