Isothermal storage test device for chemicals

Abstract

The utility model relates to an isothermal storage test device for chemicals, including a test box, a storage box arranged in the test box, a heating structure and a temperature sensor, and its technical points are: a horizontal partition is arranged at the lower part of the test box, a heat preservation cavity is formed between the horizontal partition and the test box, two X-direction tracks are arranged on the upper surface of the horizontal partition, the storage box is seated on the horizontal partition and its bottom surface is provided with an X-direction groove matched with the X-direction track, a flow stabilizing plate is connected to the middle of the top surface of the storage box, and a plurality of through holes are arranged on the flow stabilizing plate, an X-direction push-pull cylinder is fixed on one side of the outside of the test box, the cylinder rod of the X-direction push-pull cylinder is connected and fixed to the storage box, an X-direction buffer spring is arranged between the other side of the test box and the storage box, the heating structure is a heating plate fixed to the bottom surface of the horizontal partition, and there are two temperature sensors, one of which is fixed in the heat preservation cavity and the other is fixed in the storage box. The device enhances the simulation of the chemical transportation state and ensures the accuracy of the test results.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical test equipment, in particular to an isothermal storage test device for chemicals. Background Art

[0002] The self-accelerating decomposition temperature of chemicals is an important parameter for determining whether a chemical has a self-reactive hazard. It is used to assess whether a chemical will undergo dangerous self-accelerating decomposition during the transportation of the package. Isothermal storage test equipment is generally used to determine the heat generation rate of a reaction or decomposition substance over time at a constant temperature.

[0003] For example, CN 215297209 U discloses an isothermal storage test device for chemicals, which includes a box cover, a test box body, a light intensity sensor, a stirring motor, an auger, a manual plug valve, a support leg, a heating plate, a temperature sensor, a control panel, a sleeve, a rotatable light intensity adjustment cover structure and a movable chemical discharge plate structure, wherein the box cover is buckled on the upper part of the test box body; the light intensity sensor is connected to the lower middle side of the left inner wall of the test box body. The provision of a protective cover, a fixed column, a circular connecting plate, a lamp tube, a light shield, a rotating rod and a hand wheel is conducive to adjusting the light intensity; the provision of a chemical collection barrel, a U-shaped slide, a sliding plate, a handle and a discharge hopper is conducive to controlling the discharge of chemicals and facilitating the subsequent mixing of chemicals. However, it has the following problems: the simulation of chemicals in the transportation state is insufficient, so the accuracy of the results of evaluating the self-accelerating decomposition of chemicals needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a chemical isothermal storage test device with a reasonable structure and reliable use to solve the above problems, enhance the simulation of the chemical transportation state, and ensure the accuracy of the test results.

[0005] The technical solution of the utility model is:

[0006] A isothermal storage test device for chemicals, comprising a test box, a storage box arranged in the test box, a heating structure and a temperature sensor, the technical highlights of which are: a horizontal partition is provided at the lower part of the test box, a heat preservation chamber is formed between the horizontal partition and the test box, two X-direction tracks are provided at intervals on the upper surface of the horizontal partition, the storage box is seated on the horizontal partition and its bottom surface is provided with an X-direction groove matching the X-direction track, a flow stabilizing plate is connected to the middle part of the top surface of the storage box, a plurality of through holes are provided on the flow stabilizing plate, an X-direction push-pull cylinder is fixed to one side of the outside of the test box, the cylinder rod of the X-direction push-pull cylinder is connected and fixed to the storage box, an X-direction buffer spring is provided between the other side of the test box and the storage box, the heating structure is a heating plate fixed to the bottom surface of the horizontal partition, the number of the temperature sensors is two, one of which is fixed in the heat preservation chamber, and the other is fixed in the storage box.

[0007] In the above-mentioned isothermal storage test device for chemicals, a lead hole is provided on the side wall of the test box, and the lead wire of the temperature sensor fixed in the storage box passes through the lead hole to the outside, and a sealing ring is provided at the lead hole.

[0008] In the above-mentioned isothermal storage test device for chemicals, the lower end of the flow stabilizing plate extends to the bottom of the storage box and leaves a set communication gap to ensure liquid communication of the chemicals in the storage box.

[0009] The above-mentioned isothermal storage test device for chemicals has a top plate fixed on the top of the test box body, and a first matrix-shaped light-transmitting holes is provided on the top plate, a pull-out seat is provided above the top plate, and a pull-out plate is provided in the pull-out seat, and a second matrix-shaped light-transmitting holes corresponding to the first matrix-shaped light-transmitting holes are provided on the pull-out plate, and a light box is fixed above the pull-out seat.

[0010] In the above-mentioned isothermal storage test device for chemicals, a heat preservation layer is provided on the bottom surface of the heat preservation cavity.

[0011] In the above-mentioned isothermal storage test device for chemicals, the storage box is a transparent box.

[0012] The beneficial effects of the utility model are:

[0013] 1. The storage box is pushed and pulled by the X-axis push-pull cylinder, and reciprocates along the X-axis track to make the chemicals in the storage box shake. In this process, the flow is stabilized by the flow stabilizer to simulate the shaking during the transportation of chemicals. In this process, the heating plate is used to heat the storage box and the chemicals therein. In the case of shaking, the temperature increase of the chemicals is recorded by the temperature sensor, so as to obtain the heat generation rate of the chemicals changing with time at a constant temperature, which is helpful to evaluate whether dangerous self-accelerating decomposition of chemicals will occur during the transportation of packages.

[0014] 2. The light from the light box is directed toward the storage box through the second matrix-shaped light-transmitting holes on the pull-out plate and the first matrix-shaped light-transmitting holes on the top plate, and the light intensity can be adjusted by adjusting the overlap between the first matrix-shaped light-transmitting holes and the second matrix-shaped light-transmitting holes. The setting of this working condition is conducive to obtaining the effect of light on the temperature increase of chemicals during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 yes Figure 1 Side view of

[0017] Figure 3 yes Figure 1 A top view of

[0018] Figure 4 It is a schematic diagram of adjusting the overlap between the first matrix-shaped light-transmitting holes and the second matrix-shaped light-transmitting holes.

[0019] In the figure: 1. light box, 2. pull-out seat, 3. sealing ring, 4. pull-out plate, 5. temperature sensor, 6. X-axis push-pull cylinder, 7. storage box, 8. horizontal partition, 9 insulation layer, 10. heating plate, 11. temperature sensor, 12 insulation cavity, 13. X-axis track, 14. X-axis buffer spring, 15. flow stabilizing plate, 16. through hole, 17. top plate, 18. test box, 19. second matrix-shaped light-transmitting holes, 20. first matrix-shaped light-transmitting holes. DETAILED DESCRIPTION

[0020] The utility model is described in detail according to the accompanying drawings of the specification.

[0021] like Figure 1 to Figure 4 As shown, the isothermal storage test device for chemicals comprises a test box 18, a storage box 7 arranged in the test box 18, a heating structure and a temperature sensor.

[0022] Among them, a horizontal partition 8 is provided at the lower part of the test box 18, and a heat preservation chamber 12 is formed between the horizontal partition 8 and the test box 18. A heat preservation layer 9 is provided on the bottom surface of the heat preservation chamber 12. Two X-direction tracks 13 are provided on the upper surface of the horizontal partition 8. The storage box 7 is located on the horizontal partition 8 and its bottom surface is provided with an X-direction groove that cooperates with the X-direction track 13. The middle part of the top surface of the storage box 7 is connected to a flow stabilizing plate 15, and a plurality of through holes 16 are provided on the flow stabilizing plate 15. The lower end of the flow stabilizing plate 15 extends to the bottom of the storage box 7 and leaves a set communication gap to ensure that the chemical liquid in the storage box 7 is connected.

[0023] An X-direction push-pull cylinder 6 is fixed to one side of the outside of the test box 18, and the cylinder rod of the X-direction push-pull cylinder 6 is connected and fixed to the storage box 7. An X-direction buffer spring 14 is provided between the other side of the test box 18 and the storage box 7. The heating structure is a heating plate 10 fixed to the bottom surface of the horizontal partition 8, and the number of the temperature sensors is two, one of which is a temperature sensor 11 fixed in the heat preservation cavity 12, and the other is a temperature sensor 5 fixed in the storage box 7.

[0024] A top plate 17 is fixed on the top of the test box 18, and a first matrix-shaped light-transmitting hole 20 is provided on the top plate 17. A pull-out seat 2 is provided above the top plate 17, and a pull-out plate 4 is provided in the pull-out seat 2. The pull-out plate 4 is provided with a second matrix-shaped light-transmitting hole 19 corresponding to the first matrix-shaped light-transmitting hole 20. A light box 1 is fixed above the pull-out seat 2. The storage box 7 is a transparent box.

[0025] The side wall of the test box 18 is provided with a lead hole, and the lead wire of the temperature sensor 5 fixed in the storage box 7 reaches the outside through the lead hole. A sealing ring 3 is provided at the lead hole to ensure sealing.

[0026] Working principle:

[0027] 1. During the test, the X-axis push-pull cylinder 6 pushes and pulls the storage box 7 to reciprocate along the X-axis track 13 to cause the chemicals in the storage box 7 to shake. During this process, the heating plate 10 heats the storage box 7 and transfers heat to the chemicals therein. In the case of shaking, the temperature increase of the chemicals is recorded by the temperature sensor 5, thereby obtaining the heat generation rate of the chemicals changing with time at a constant temperature.

[0028] 2. The light from the light box 1 is directed toward the storage box 7 through the second matrix-shaped light-transmitting holes 19 on the pull-out plate 4 and the first matrix-shaped light-transmitting holes 20 on the top plate 17 to record the temperature increase of the chemicals. The pull-out plate 4 is moved outward, and the overlap between the first matrix-shaped light-transmitting holes 20 and the second matrix-shaped light-transmitting holes 19 is adjusted to adjust the light intensity. Figure 4 , record the temperature increase of chemicals, which is helpful to obtain the impact of light on the temperature increase of chemicals.

[0029] The above is a detailed description of the embodiments of the utility model, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the invention of the utility model should still fall within the scope of this patent.

Claims

1. An isothermal storage test device for chemicals, comprising a test box, a storage box arranged in the test box, a heating structure and a temperature sensor, characterized in that: A horizontal partition is provided at the lower part of the test box, and an insulation cavity is formed between the horizontal partition and the test box, two X-axis tracks are provided at intervals on the upper surface of the horizontal partition, the storage box is seated on the horizontal partition and its bottom surface is provided with an X-axis groove matching the X-axis track, a flow stabilizing plate is connected to the middle part of the top surface of the storage box, a plurality of through holes are provided on the flow stabilizing plate, an X-axis push-pull cylinder is fixed to one side of the outside of the test box, the cylinder rod of the X-axis push-pull cylinder is connected and fixed to the storage box, an X-axis buffer spring is provided between the other side of the test box and the storage box, the heating structure is a heating plate fixed to the bottom surface of the horizontal partition, and the number of the temperature sensors is two, one of which is fixed in the insulation cavity, and the other is fixed in the storage box.

2. The isothermal storage test device for chemicals according to claim 1, characterized in that: A lead hole is arranged on the side wall of the test box body, and the lead wire of the temperature sensor fixed in the material storage box reaches the outside through the lead hole, and a sealing ring is arranged at the lead hole.

3. The isothermal storage test device for chemicals according to claim 1, characterized in that: The lower end of the flow stabilizing plate extends toward the bottom of the material storage box and leaves a set communication gap.

4. The isothermal storage test device for chemicals according to claim 1, characterized in that: A top plate is fixed on the top of the test box, and a first matrix of light-transmitting holes is provided on the top plate. A pull-out seat is provided above the top plate, and a pull-out plate is provided in the pull-out seat. The pull-out plate is provided with second matrix of light-transmitting holes corresponding to the first matrix of light-transmitting holes. A light box is fixed above the pull-out seat.

5. The isothermal storage test device for chemicals according to claim 1, characterized in that: The bottom surface of the heat preservation cavity is provided with a heat preservation layer.

6. The isothermal storage test device for chemicals according to claim 1, characterized in that: The material storage box is a transparent box.

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