A temperature control system for determining the chemical stability of energetic materials

Abstract

The present invention provides a temperature control system for determining the chemical stability of energetic materials. The system is a special instrument for determining the chemical stability of energetic materials. The system comprises a temperature control tank, a heating device, a refrigeration device, a circulation device, and a remote controller. Through internal circulation stirring, stainless steel enclosed electric heating, and air-cooled compressor refrigeration technology, the system can achieve precise temperature control of the oil in the temperature control tank. Compared with existing equipment, the system has a wider temperature control range and higher temperature control accuracy. The system can achieve a temperature control range of 0°C to 150°C, a temperature control fluctuation of ±0.2°C, and a temperature control uniformity of ±0.2°C. The temperature control system can accurately and quickly measure the chemical stability of various energetic materials.

Description

Technical Field

[0001] The invention belongs to a special instrument for measuring the chemical stability of energetic materials, and in particular relates to a temperature control system for measuring the chemical stability of energetic materials. Background Art

[0002] The chemical stability of energetic materials is directly related to the safety of storage, transportation, and use, and storage conditions can also directly affect the stability of energetic materials. Stability refers to the ability of energetic materials to withstand certain external influences over a certain period of time without changing their original physical and chemical properties. The stronger this ability, the better the stability. Different energetic materials have different thermal decomposition capabilities. Accurately testing their chemical stability at different temperatures is a technical difficulty in this field. Existing temperature control systems often use a single temperature control solution, such as installing air-cooled refrigeration equipment, direct cooling equipment, or heating wires in a sealed space. Due to the lack of system design, these systems often suffer from technical issues such as a narrow temperature control range, large temperature fluctuations, and poor temperature uniformity. Summary of the Invention

[0003] The present invention provides a temperature control system for determining the chemical stability of energetic materials. The system can achieve precise temperature control of the oil in a temperature control tank through internal circulation stirring, stainless steel enclosed electric heating, and air-cooled compressor refrigeration technology.

[0004] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions:

[0005] A temperature control system for determining the chemical stability of energetic materials, characterized in that it comprises a box, a remote controller, a temperature control tank, a heating device, a refrigeration device, a circulation device, a temperature sensor, an overflow pipe, a drain pipe and a drain valve, wherein: the remote controller is mounted on the outside of the box and is used to adjust the temperature of the oil in the temperature control tank, and the remote controller is connected to the host computer via a wired or wireless manner; the temperature control tank is mounted on the upper side of the box and is used to hold the oil; the heating device is mounted in the heating chamber at the bottom of the temperature control tank and is used to heat the oil in the temperature control tank; the refrigeration device is mounted on the upper side of the box and is used to heat the oil in the temperature control tank; the refrigeration device is mounted on the upper side of the box and is used to heat the oil in the temperature control tank; the refrigeration device is mounted on the lower side of the box and is used to heat the oil in the temperature control tank; the refrigeration device is mounted on the lower side of the box and is used to heat the oil in the temperature control tank; the refrigeration device is mounted on the lower side of the box and is used to heat the oil in the temperature control tank; the refrigeration device is mounted on the lower side of the box and is used to heat the oil in the temperature control tank; the refrigeration device is mounted on the lower side of the box and is used to heat the oil in the temperature control tank; the refrigeration device is mounted on the upper ... The device is installed on the lower side of the interior of the box and is used to cool the oil inside the temperature control tank; the circulation device is installed on the lower side of the interior of the box and is used to evenly stir the oil inside the temperature control tank; the temperature sensor is installed on the side wall of the temperature control tank and is used to detect the temperature of the oil in real time; the inlet of the overflow pipe is set at the top of the side wall of the temperature control tank, and the outlet of the overflow pipe is set at the bottom of the box, and the overflow pipe is used to prevent excessive oil from overflowing from the temperature control tank; the inlet of the drain pipe is set at the bottom of the temperature control tank, and the outlet of the drain pipe is set at the bottom of the box, and the drain pipe is used to discharge the oil.

[0006] Preferably, a metal liner is installed inside the temperature control tank, and the bottom of the metal liner is in contact with the heating chamber.

[0007] Preferably, the heating device adopts a stainless steel closed electric heater and includes a first heating tube, a second heating tube and a third heating tube, and the first heating tube, the second heating tube and the third heating tube are installed side by side in the heating chamber.

[0008] Preferably, the refrigeration device adopts air-cooling refrigeration and includes a heat exchanger, a compressor and an evaporator, wherein: the heat exchanger is arranged at the ventilation hole of the box; the compressor and evaporator are both arranged inside the box, and the evaporator is installed in a position close to the temperature control tank.

[0009] Preferably, the circulation device includes a liquid inlet pipe, a liquid outlet pipe and a circulation pump, one end of the liquid inlet pipe is connected to the outlet of the circulation pump, the other end of the liquid inlet pipe is arranged on the upper side wall of the temperature control tank, one end of the liquid outlet pipe is arranged at the bottom of the temperature control tank, and the other end of the liquid outlet pipe is connected to the inlet of the circulation pump.

[0010] Preferably, a drain valve is provided at the end of the drain pipe.

[0011] Preferably, a plurality of cabinet doors are provided on the front of the box body, and a base is provided on the bottom of the box body.

[0012] Preferably, the remote controller controls the operation of the heating device or the refrigeration device through PID self-tuning adjustment according to the oil set temperature and the real-time oil temperature collected by the temperature sensor, wherein: the remote controller includes a YUDIANAP-14 type remote communication chip, which can realize remote data transmission and remote monitoring.

[0013] The temperature control system for determining the chemical stability of energetic materials according to the present invention has the following beneficial effects:

[0014] The system includes a temperature control tank, a heating device, a refrigeration device, a circulation device, and a remote controller. Through internal circulation agitation, stainless steel enclosed electric heating, and air-cooled compressor refrigeration technology, it can achieve precise temperature control of the oil in the temperature control tank. Compared with existing equipment, the temperature control range is wider and the temperature control accuracy is higher. The system can achieve a temperature control range of 0°C to 150°C, a temperature control fluctuation of ±0.2°C, and a temperature control uniformity of ±0.2°C. This temperature control system can accurately and quickly measure the chemical stability of various energetic materials. At the same time, the remote controller has remote monitoring functions, enabling remote switching, remote temperature setting, and remote temperature display. It also has over-temperature alarms and data recording functions, preventing direct contact between experimenters and toxic gases that may be generated during the test, thereby improving the safety of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the back structure of the present invention;

[0017] Figure 3 is a schematic diagram of the first internal structure of the present invention;

[0018] Figure 4 is a second internal structure schematic diagram of the present invention;

[0019] Figure 5 is a third internal structure schematic diagram of the present invention;

[0020] Figure 6 Schematic diagram of the PID controller circuit of the remote controller in the present invention;

[0021] Figure 7 Schematic diagram of the remote control chip circuit of the remote controller in the present invention.

[0022] In the figure, 1- cabinet, 101- cabinet door, 102- base, 103- ventilation hole, 2- remote controller, 3- temperature control tank, 301- heating chamber, 302- metal liner, 4- heating device, 401- first heating tube, 402- second heating tube, 403- third heating tube, 5- refrigeration device, 501- heat exchanger, 502- compressor, 503- evaporator, 6- circulation device, 601- liquid inlet pipe, 602- liquid outlet pipe, 603- circulation pump, 7- temperature sensor, 8- overflow pipe, 9- drain pipe, 10- drain valve. DETAILED DESCRIPTION

[0023] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0024] The present invention will be further described according to the accompanying drawings:

[0025] This temperature control system is suitable for the determination of chemical stability of energetic materials such as gunpowder and nitrocellulose, and is also suitable as a methyl violet test system. Figures 1 to 7As shown, the system includes a box 1, a remote controller 2, a temperature control tank 3, a heating device 4, a refrigeration device 5, a circulation device 6, a temperature sensor 7, an overflow pipe 8, a drain pipe 9 and a drain valve 10. In the figure, the remote controller 2 is installed on the outside of the box 1 and is used to adjust the temperature of the oil in the temperature control tank 3. The remote controller 2 has a switch button and a temperature control button. The temperature control tank 3 is installed on the upper side of the inside of the box 1 and is used to hold the oil. Multiple temperature control tanks 3 can be set in the system. Independent temperature control schemes or unified temperature control schemes can be adopted between the temperature control tanks 3. The heating device 4 is installed in the heating cavity 301 at the bottom of the temperature control tank 3 and is used to heat the oil inside the temperature control tank 3; the refrigeration device 5 is installed on the lower side of the inside of the box 1 and is used to cool the oil inside the temperature control tank 3; the ring device 6 is installed on the lower side of the inside of the box 1 and is used to evenly stir the oil inside the temperature control tank 3; the temperature sensor 7 is installed on the side wall of the temperature control tank 3 and is used to detect the temperature of the oil in real time.

[0026] It should be noted that when multiple temperature-controlled tanks 3 adopt independent temperature control solutions, each temperature-controlled tank 3 needs to be equipped with an independent heating device 4, cooling device 5, circulation device 6, temperature sensor 7, overflow pipe 8, drain pipe 9, and drain valve 10. When multiple temperature-controlled tanks 3 adopt a unified temperature control solution, the multiple temperature-controlled tanks 3 are connected in series through pipelines, and only one set of heating device 4, cooling device 5, circulation device 6, temperature sensor 7, overflow pipe 8, drain pipe 9, and drain valve 10 is used.

[0027] like Figures 3 to 5 As shown, the inlet of the overflow pipe 8 is set at the top of the side wall of the temperature control tank 3, and the outlet of the overflow pipe 8 is set at the bottom of the box body 1. The overflow pipe 8 is used to prevent excessive oil from overflowing from the temperature control tank 3; the inlet of the drain pipe 9 is set at the bottom of the temperature control tank 3, and the outlet of the drain pipe 9 is set at the bottom of the box body 1. The drain pipe 9 is used to discharge the oil.

[0028] Specifically, such as Figure 4 and Figure 5 As shown, the temperature-controlled tank 3 is internally mounted with a metal liner 302, the bottom of which contacts the heating chamber 301. The metal liner 302 is unmodified. The heating device 4 utilizes a stainless steel enclosed electric heater and includes a first heating tube 401, a second heating tube 402, and a third heating tube 403. These three tubes are mounted side by side within the heating chamber 301.

[0029] In this embodiment, refrigeration device 5 employs air-cooling and includes a heat exchanger 501, a compressor 502, and an evaporator 503. Heat exchanger 501 is positioned at ventilation hole 103 of housing 1; compressor 502 and evaporator 503 are both positioned within housing 1, with evaporator 503 installed proximate to temperature-controlled tank 3. It should be noted that the air-cooling refrigeration solution utilizes existing technology, and this solution only specifies the placement. In specific embodiments, an air-cooling fan may be positioned on evaporator 503 for rapid cooling.

[0030] In this embodiment, the circulation device 6 includes a liquid inlet pipe 601, a liquid outlet pipe 602 and a circulation pump 603. One end of the liquid inlet pipe 601 is connected to the outlet of the circulation pump 603, and the other end of the liquid inlet pipe 601 is arranged on the upper part of the side wall of the temperature control tank 3. One end of the liquid outlet pipe 602 is arranged at the bottom of the temperature control tank 3, and the other end of the liquid outlet pipe 602 is connected to the inlet of the circulation pump 603. The oil can be evenly stirred by the circulation device 6 to ensure temperature uniformity.

[0031] Specifically, a drain valve 10 is provided at the end of the drain pipe 9 .

[0032] Specifically, a plurality of cabinet doors 101 are provided on the front of the box body 1 , and a base 102 is provided on the bottom of the box body 1 .

[0033] like Figure 6 and Figure 7 As shown, the remote controller 2 controls the operation of the heating device 4 or the refrigeration device 5 through PID self-tuning adjustment according to the oil set temperature and the real-time oil temperature collected by the temperature sensor 7. Specifically, the AI-516 PID adjustment chip is adopted, wherein: the remote controller 2 includes the YUDIAN AP-14 remote communication chip, which can realize remote data transmission and remote monitoring. Specifically, the remote controller 2 can be connected to the host computer through serial communication, Bluetooth communication or ZigBee communication to realize remote control.

[0034] The specific operation steps are as follows:

[0035] 1. Correctly adjust the over-temperature protection temperature according to the working temperature.

[0036] 2. Equipment Startup: Depending on the application, connect the power supply to oil tanks 1 and 2 (operating simultaneously or individually), and close the air switch. Connect the power supply to the remote control cabinet, and press the start button for oil tanks 1 and 2 (operating simultaneously or individually) to start the equipment. (The local control buttons function the same as the remote control console buttons, which can start and stop the equipment simultaneously.)

[0037] 3. When the remote console is powered on, the local instrument cannot set the temperature. If you need to operate the instrument locally, just turn off the circuit breaker of the remote console.

[0038] 4. The interval between turning the power on and off must not be less than one minute to ensure the normal reset of electrical components; when the equipment is not used for a long time, the main power must be turned off.

[0039] 5. Do not heat or cool flammable, explosive, volatile, or corrosive items. Specifically, a test tube rack is provided in the temperature control tank, and multiple test tubes are installed on the test tube rack, in which the energetic materials to be tested are placed. For example, when testing methyl violet, after setting the temperature, use test paper to test its volatile gas.

[0040] 6. The outer surface paint layer is strictly prohibited from contacting any organic solvents (alcohol, banana oil, etc.), and can only be scrubbed with neutral detergent and water.

[0041] 7. Please clean the device regularly to avoid malfunction.

[0042] The system can achieve a temperature control range of 0°C to 150°C, a temperature control fluctuation of ±0.2°C, and a temperature control uniformity of ±0.2°C. This temperature control system can accurately and quickly measure the chemical stability of a variety of energetic materials.

[0043] Finally, it should be noted that 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A temperature control system for determining the chemical stability of energetic materials, characterized in that: The invention comprises a box (1), a remote controller (2), a temperature control tank (3), a heating device (4), a refrigeration device (5), a circulation device (6), a temperature sensor (7), an overflow pipe (8), a drain pipe (9) and a drain valve (10), wherein: The remote controller (2) is installed outside the box (1) and is used to adjust the temperature of the oil in the temperature control tank (3). The remote controller (2) is connected to the host computer via a wired or wireless method. The temperature control tank (3) is installed on the upper side of the box (1) and is used to hold oil; The heating device (4) is installed in the heating cavity (301) at the bottom of the temperature control tank (3) and is used to heat the oil inside the temperature control tank (3); The refrigeration device (5) is installed on the lower side of the box body (1) and is used to cool the oil inside the temperature control tank (3); The circulation device (6) is installed on the lower side of the box (1) and is used to uniformly stir the oil inside the temperature control tank (3); The temperature sensor (7) is mounted on the side wall of the temperature control tank (3) and is used to detect the temperature of the oil in real time; The inlet of the overflow pipe (8) is arranged at the top of the side wall of the temperature control tank (3), and the outlet of the overflow pipe (8) is arranged at the bottom of the box body (1). The overflow pipe (8) is used to prevent excessive oil from overflowing from the temperature control tank (3); The inlet of the drain pipe (9) is arranged at the bottom of the temperature control tank (3), and the outlet of the drain pipe (9) is arranged at the bottom of the box (1). The drain pipe (9) is used to discharge oil; A metal liner (302) is installed inside the temperature control tank (3), and the bottom of the metal liner (302) is in contact with the heating chamber (301); The heating device (4) adopts a stainless steel closed electric heater and comprises a first heating tube (401), a second heating tube (402) and a third heating tube (403); the first heating tube (401), the second heating tube (402) and the third heating tube (403) are installed side by side in the heating chamber (301); The refrigeration device (5) adopts air-cooled refrigeration and includes a heat exchanger (501), a compressor (502) and an evaporator (503), wherein: The heat exchanger (501) is arranged at the ventilation hole (103) of the box body (1); The compressor (502) and the evaporator (503) are both arranged inside the box (1), and the evaporator (503) is installed in a position close to the temperature control tank (3); The circulation device (6) comprises a liquid inlet pipe (601), a liquid outlet pipe (602) and a circulation pump (603), one end of the liquid inlet pipe (601) is connected to the outlet of the circulation pump (603), the other end of the liquid inlet pipe (601) is arranged on the upper part of the side wall of the temperature control tank (3), one end of the liquid outlet pipe (602) is arranged at the bottom of the temperature control tank (3), and the other end of the liquid outlet pipe (602) is connected to the inlet of the circulation pump (603).

2. The temperature control system for determining the chemical stability of energetic materials according to claim 1, characterized in that: A drain valve (10) is provided at the end of the drain pipe (9).

3. The temperature control system for determining the chemical stability of energetic materials according to claim 1, characterized in that: A plurality of cabinet doors (101) are provided on the front of the box body (1), and a base (102) is provided on the bottom of the box body (1).

4. The temperature control system for determining the chemical stability of energetic materials according to claim 1, wherein: The remote controller (2) controls the operation of the heating device (4) or the refrigeration device (5) through PID self-tuning adjustment according to the set oil temperature and the real-time oil temperature collected by the temperature sensor (7), wherein: the remote controller (2) includes a YUDIAN AP-14 type remote communication chip, which can realize remote data transmission and remote monitoring.

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