A volatile chemical transport case with temperature regulation

Abstract

The utility model provides a volatile chemical transportation box of area with temperature regulation, including box, lid, temperature regulation system, sealing assembly and pressure balance subassembly, the box is the hollow structure of top opening, is equipped with the inner bag in it. The utility model sets up the temperature regulation system who is composed of temperature sensor, temperature controller, silica gel heating sheet, semiconductor refrigeration piece, temperature sensor real -time detection inner bag temperature and feedback to temperature controller, and temperature controller can according to setting range automatic start -stop heating or refrigeration element: silica gel heating sheet is pasted to the inner bag outer wall, can be in low temperature time quick heating, semiconductor refrigeration piece cold end pastes the inner bag, and the hot end is equipped with radiating fin, can be in high temperature time high -efficient cooling, realizes temperature closed loop control, can stabilize the temperature in the box in the low volatile interval of volatile chemical, significantly reduces the volatile rate, greatly reduces material loss, avoids the risk that gas concentration suddenly rises because of temperature is too high simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of chemical transportation technology, and more specifically, it relates to a transport box for volatile chemicals with temperature control. Background Technology

[0002] Volatile chemicals (such as ethanol and ethyl acetate) face two major challenges during transportation: evaporation loss and safety hazards. Traditional transport containers typically employ simple sealed structures, making it difficult to effectively control temperature changes. This leads to accelerated evaporation of chemicals due to fluctuations in ambient temperature, resulting not only in economic losses but also the potential for explosions due to increased pressure inside the container.

[0003] Most transport containers rely solely on simple insulation layers to mitigate temperature changes, failing to actively regulate the internal temperature. Some containers employ overly tight sealing structures in pursuit of a perfect seal, yet lack pressure relief channels, leading to the continuous accumulation of volatile gases inside, creating high pressure. This can cause container deformation, seal failure, and ultimately, significant leakage. To address these shortcomings of existing technologies, there is an urgent need to design a transport container for volatile chemicals that can actively regulate temperature and balance sealing and pressure, thereby resolving safety and loss issues during the transport of volatile chemicals. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a transport box for volatile chemicals with temperature control, which is achieved by the following specific technical means:

[0005] A temperature-controlled transport box for volatile chemicals includes a box body, a lid, a temperature control system, a sealing assembly, and a pressure balancing assembly. The box body is a hollow structure with an open top and an inner liner inside. An insulation layer is filled between the inner liner and the outer wall of the box body. The lid is hinged to one side of the top opening of the box body and secured to the box body with a locking mechanism. The temperature control system includes a temperature sensor, a thermostat, a heating element, and a cooling element. The temperature sensor is installed on the inner wall of the inner liner to detect the real-time temperature inside the liner, and the thermostat is fixed to the outer wall of the box body. Its input terminal is electrically connected to a temperature sensor. The heating element and the cooling element are both installed between the outer wall of the inner liner and the insulation layer, and the control terminals of both are electrically connected to the output terminal of the thermostat. The sealing assembly includes a sealing groove located at the edge of the opening at the top of the box, and a sealing gasket located at the bottom of the box cover and adapted to the sealing groove. The bottom of the box cover has a protrusion, and the sealing gasket is fitted onto the protrusion. The pressure balancing assembly includes a pressure relief valve and a one-way breathable membrane. The pressure relief valve is installed in the middle of the box cover, and the one-way breathable membrane is located inside the pressure relief valve and is arranged corresponding to the air outlet channel of the pressure relief valve.

[0006] Furthermore, the heating element is a silicone heating pad, which is attached to the outer wall of the inner liner, and the cooling element is a semiconductor cooling pad, whose cold end is attached to the outer wall of the inner liner, and whose hot end penetrates the insulation layer and faces the outside of the box, and has heat dissipation fins on the outside of the hot end.

[0007] Furthermore, the temperature controller is equipped with a display screen and operation buttons.

[0008] Furthermore, the locking component includes a latch and a locking rod. The latch is fixedly installed on the lid, and a locking hole is provided on the surface of the latch. The locking rod is slidably installed on the box body, and the locking rod is movably inserted into the locking hole.

[0009] Furthermore, a sliding groove is provided on the side of the box body, and a slider is fixedly installed at the bottom end of the locking rod. The slider is slidably installed in the sliding groove, and a round rod is movably passed through the locking rod. A spring is movably sleeved on the round rod, and the slider is fixedly connected to the side wall of the sliding groove through the spring. The round rod is fixedly installed in the sliding groove.

[0010] Furthermore, a base plate is fixedly installed at the bottom of the box, and several reinforcing ribs are fixedly installed at the edge of the box along the base plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] I. This temperature-controlled volatile chemical transport box is equipped with a temperature control system consisting of a temperature sensor, a temperature controller, silicone heating elements, and a semiconductor cooling chip. The temperature sensor detects the inner liner temperature in real time and feeds it back to the temperature controller. The temperature controller can automatically start or stop the heating or cooling elements according to the set range. The silicone heating elements are attached to the outer wall of the inner liner and can quickly heat up at low temperatures. The semiconductor cooling chip is attached to the inner liner at the cold end and equipped with heat dissipation fins at the hot end, which can efficiently cool down at high temperatures, realizing closed-loop temperature control. It can stabilize the temperature inside the box within the low volatility range of volatile chemicals, significantly reduce the evaporation rate, greatly reduce material loss, and avoid the risk of a sudden increase in gas concentration due to excessive temperature.

[0013] Second, the sealing assembly adopts a structure of "sealing groove + protrusion with sealing gasket". When the lid is closed, the elastic sealing gasket is precisely embedded in the sealing groove, forming the first sealing barrier. The locking component is driven by a spring to automatically insert the locking rod into the lock hole. During the locking process, uniform pressure can be applied to the lid, so that the sealing gasket completely fits the gap of the sealing groove, enhancing the sealing effect. At the same time, the round rod provides a sliding guide for the locking rod, ensuring the stability of the structure after locking. Even if there are bumps during transportation, it is not easy to loosen. This solves the problem of "poor sealing" or "seal failure after locking" in existing transport boxes, effectively preventing the volatilization and leakage of chemicals.

[0014] 3. The pressure relief valve and the one-way breathable membrane work together to automatically release air only when the pressure inside the box exceeds the threshold. After venting, the valve immediately closes, achieving "high-pressure venting and normal sealing." This prevents the risk of explosion and reduces evaporation loss. The one-way breathable membrane completely isolates external contaminants, ensuring the purity of chemicals. The bottom plate and reinforcing ribs (triangular support structure) disperse the impact force during transportation, preventing box deformation, protecting the inner liner and temperature control system, ensuring stable operation, and extending service life. The temperature controller is equipped with a display screen and operation buttons, supporting temperature setting and real-time monitoring. The parameters are visualized, allowing staff to quickly adjust and adapt to the transportation needs of different chemicals. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the temperature-controlled transport box for volatile chemicals according to this utility model.

[0016] Figure 2 This is a schematic diagram of the box body of this utility model cut open.

[0017] Figure 3 This is a schematic diagram of the silicone heating pad of this utility model.

[0018] Figure 4 This is a schematic diagram of the sealing groove of this utility model.

[0019] Figure 5 This is a schematic diagram of the box cover of this utility model.

[0020] Figure 6 This is a utility model Figure 1 A magnified diagram of point A in the middle.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Cabinet body; 12. Insulation layer; 13. Inner liner; 14. Sealing groove; 15. Sliding groove; 2. Cabinet lid; 21. Protrusion; 22. Sealing gasket; 3. Thermostat; 31. Temperature sensor; 4. Silicone heating element; 5. Semiconductor cooling chip; 51. Heat dissipation fins; 6. Pressure relief valve; 7. Lock; 71. Lock hole; 8. Locking rod; 81. Sliding block; 82. Round rod; 83. Spring; 9. Base plate; 91. Reinforcing rib. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] As attached Figure 1 To be continued Figure 6 As shown:

[0028] This utility model provides a temperature-controlled transport box for volatile chemicals, including a box body 1, a lid 2, a temperature control system, a sealing assembly, and a pressure balancing assembly. The box body 1 is a hollow structure with an open top, and an inner liner 13 is provided inside. An insulation layer 12 is filled between the inner liner 13 and the outer wall of the box body 1. The lid 2 is hinged to one side of the top opening of the box body 1 by a hinge, and the lid 2 is fixed to the box body 1 by a locking device. The temperature control system includes a temperature sensor 31, a temperature controller 3, a heating element, and a cooling element. The temperature sensor 31 is installed on the inner wall of the inner liner 13 to detect the real-time temperature inside the inner liner 13. The temperature controller 3 is fixed to the outer wall of the box body 1, and its input end is electrically connected to the temperature sensor 31. The heating element and the cooling element are both installed on the outer wall of the inner liner 13 and the outer wall of the box body 1. Between the insulation layers 12, and the control terminals of both are electrically connected to the output terminal of the temperature controller 3; the sealing assembly includes a sealing groove 14 set at the edge of the opening at the top of the box 1, and a sealing gasket 22 set at the bottom of the box cover 2 and adapted to the sealing groove 14. The bottom of the box cover 2 is provided with a protrusion 21, and the sealing gasket 22 is fitted on the protrusion 21; the pressure balancing assembly includes a pressure relief valve 6 and a one-way breathable membrane. The pressure relief valve 6 is installed in the middle of the box cover 2, and the one-way breathable membrane is set inside the pressure relief valve 6 and is arranged corresponding to the air outlet channel of the pressure relief valve 6. When the pressure inside the box drops below the safety threshold, the pressure relief valve 6 automatically closes, restoring the box 1 to a sealed state, achieving a balance of "controllable exhaust only under high pressure and maintaining a seal under normal conditions", which avoids the risk of high pressure explosion and reduces the loss of chemical volatilization;

[0029] The heating element is a silicone heating pad 4, which is attached to the outer wall of the inner liner 13. The cooling element is a semiconductor cooling pad 5, whose cold end is attached to the outer wall of the inner liner 13, and whose hot end penetrates the insulation layer 12 and faces the outside of the cabinet 1. The hot end is provided with heat dissipation fins 51. The heat dissipation fins 51 on the outside of the hot end quickly conduct the heat generated by the hot end to the outside of the insulation layer 12, avoiding the heat from the hot end from affecting the temperature of the inner liner 13 in the opposite direction, and ensuring cooling efficiency.

[0030] The temperature controller 3 is equipped with a display screen and operation buttons. Operators can set the appropriate storage temperature range for volatile chemicals using the operation buttons on the temperature controller 3 (the specific range can be adjusted according to the characteristics of the chemicals). The set parameters and real-time temperature are displayed on the display screen.

[0031] The locking components include a latch 7 and a locking rod 8. The latch 7 is fixedly installed on the cover 2, and a locking hole 71 is provided on the surface of the latch 7. The locking rod 8 is slidably installed on the body 1 and is movably inserted into the locking hole 71.

[0032] A sliding groove 15 is provided on the side of the box body 1. A slider 81 is fixedly installed at the bottom of the locking rod 8. The slider 81 is slidably installed in the sliding groove 15. A round rod 82 is movably passed through the locking rod 8. A spring 83 is movably sleeved on the round rod 82. The slider 81 is fixedly connected to the side wall of the sliding groove 15 through the spring 83. The round rod 82 is fixedly installed in the sliding groove 15. After the box cover 2 is completely closed, the slider 81 is released. The spring 83 elastically returns to its original position, causing the slider 81 and the locking rod 8 to slide synchronously. This allows the top of the locking rod 8 to automatically insert into the locking hole 71 of the lock buckle 7 on the box cover 2, completing the tight locking of the box cover 2 and the box body 1. At this time, the sealing gasket 22 is completely embedded in the sealing groove 14 under the locking pressure, eliminating gaps and creating a sealed transportation space that isolates the outside world, reducing the initial volatilization and leakage of chemicals.

[0033] A base plate 9 is fixedly installed at the bottom of the box 1. Several reinforcing ribs 91 are fixedly installed at the bottom plate 9 and the edge of the box 1. During transportation, the base plate 9 (rigid material) at the bottom of the box 1 provides stable support for the box 1 and avoids the box 1 from directly contacting the ground and causing wear. The several reinforcing ribs 91 (triangular support structure) fixed at the bottom plate 9 and the edge of the box 1 can disperse the vibration and impact force during transportation (such as collisions during loading and unloading, and bumps of the transport vehicle), prevent the box 1 from deforming or the inner liner 13 from breaking, and further ensure the stable operation of the sealing structure and temperature control system.

[0034] The working principle of this embodiment:

[0035] Step 1: Rotate the lid 2 along the hinge to open the top opening of the box 1. Place the volatile chemicals to be transported (such as ethanol, ethyl acetate, etc.) into the inner liner 13 (the inner liner 13 is made of stainless steel). After placement, close the lid 2, aligning the protrusion 21 at the bottom of the lid 2 with the top opening of the box 1. The sealing gasket 22 (elastic material) on the protrusion 21 should precisely fit against the sealing groove 14 at the edge of the opening of the box 1. Push the slider 81 at the bottom of the locking rod 8 (the slider 81 is slidably embedded in the groove 15 on the side of the box 1). The slider 81 compresses the spring 83 in the groove 15 (the round rod 82 passes through the locking rod 8 and is fixed in the groove 15, providing sliding guidance for the locking rod 8). After the lid 2 is fully closed, release the slider 81. The spring 83 elastically returns to its original position, causing the slider 81 to... The locking rod 8 slides synchronously, so that the top of the locking rod 8 automatically inserts into the locking hole 71 of the latch 7 on the lid 2, completing the tight locking of the lid 2 and the box body 1. At this time, the sealing gasket 22 is completely embedded in the sealing groove 14 under the locking pressure, eliminating gaps and creating a sealed transportation space that isolates the outside world, reducing the initial volatilization and leakage of chemicals. The temperature sensor 31 installed on the inner wall of the inner liner 13 detects the ambient temperature inside the inner liner 13 in real time (directly reflecting the chemical storage temperature) and converts the temperature signal into an electrical signal, which is continuously transmitted to the temperature controller 3 fixed on the outer wall of the box body 1. The operator can set the appropriate storage temperature range for volatile chemicals through the operation button on the temperature controller 3 (the specific range can be adjusted according to the chemical characteristics). The set parameters and real-time temperature are displayed on the screen.

[0036] Step 2: When temperature sensor 31 detects that the temperature inside the inner liner 13 is lower than the set lower limit, thermostat 3 outputs a control signal to activate the silicone heating element 4 installed between the outer wall of the inner liner 13 and the insulation layer 12. The silicone heating element 4 adheres to the outer wall of the inner liner 13 and releases heat into the inner liner 13 through heat conduction, gradually increasing the temperature inside the box. When temperature sensor 31 detects that the temperature inside the inner liner 13 is higher than the set upper limit, thermostat 3 outputs a control signal to activate the semiconductor cooling element 5, whose cold end adheres to the inner liner 13. The outer wall absorbs heat, lowering the temperature inside the inner liner 13. Simultaneously, the semiconductor cooling chip 5 penetrates the insulation layer 12 and faces the outside of the cabinet 1. The heat dissipation fins 51 on the outside of the hot end quickly conduct the heat generated at the hot end to the outside of the insulation layer 12, preventing the heat from the hot end from affecting the temperature of the inner liner 13 in the opposite direction and ensuring cooling efficiency. When the temperature inside the inner liner 13 returns to the set range, the thermostat 3 automatically cuts off the heating or cooling signal, stopping the silicone heating element 4 or the semiconductor cooling chip 5 from working, achieving precise closed-loop temperature control and suppressing the rate of chemical volatilization from the source.

[0037] Step 3: When the pressure inside the chamber rises to the opening threshold of the pressure relief valve 6 (set according to the safety characteristics of volatile chemicals, usually 0.15-0.2MPa), the pressure relief valve 6 opens automatically, and the volatile gas inside the chamber is discharged to the outside through the pressure relief valve 6. At this time, the one-way breathable membrane inside the pressure relief valve 6 only allows the gas inside the chamber to be discharged in one direction, completely preventing outside air, moisture, dust, etc. from entering the inner liner 13. When the pressure inside the chamber drops below the safety threshold, the pressure relief valve 6 closes automatically, restoring the chamber 1 to a sealed state, achieving a balance of "controllable exhaust only under high pressure and maintaining a seal under normal conditions", which avoids the risk of high pressure explosion and reduces chemical volatilization loss.

[0038] Step 4: During transportation, the bottom plate 9 (rigid material) at the bottom of the box 1 provides stable support for the box 1, preventing the box 1 from directly contacting the ground and causing wear; the bottom plate 9 and the several reinforcing ribs 91 (triangular support structure) fixed at the edge of the box 1 can disperse the vibration and impact force during transportation (such as collisions during loading and unloading, and bumps of the transport vehicle), prevent the box 1 from deforming or the inner liner 13 from breaking, and further ensure the stable operation of the sealing structure and temperature control system.

[0039] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A transport box for volatile chemicals with temperature control, characterized in that: The box includes a box body (1), a box cover (2), a temperature control system, a sealing component and a pressure balancing component. The box body (1) is a hollow structure with an open top and an inner liner (13) inside. An insulation layer (12) is filled between the inner liner (13) and the outer wall of the box body (1). The box cover (2) is hinged to the top opening side of the box body (1) by a hinge. The box cover (2) and the box body (1) are fixed by a locking component. The temperature control system includes a temperature sensor (31), a thermostat (3), a heating element, and a cooling element. The temperature sensor (31) is installed on the inner wall of the inner liner (13) to detect the real-time temperature inside the inner liner (13). The thermostat (3) is fixed on the outer wall of the box body (1), and its input end is electrically connected to the temperature sensor (31). The heating element and the cooling element are both installed between the outer wall of the inner liner (13) and the insulation layer (12), and their control ends are both electrically connected to the output end of the thermostat (3). The sealing assembly includes a sealing groove (14) disposed at the edge of the top opening of the box body (1) and a sealing gasket (22) disposed at the bottom of the box cover (2) and adapted to the sealing groove (14). The bottom of the box cover (2) is provided with a protrusion (21), and the sealing gasket (22) is fitted on the protrusion (21). The pressure balancing assembly includes a pressure relief valve (6) and a one-way breathable membrane. The pressure relief valve (6) is installed in the middle of the cover (2), and the one-way breathable membrane is disposed inside the pressure relief valve (6) and is arranged corresponding to the air outlet channel of the pressure relief valve (6).

2. The temperature-controlled transport box for volatile chemicals as described in claim 1, characterized in that: The heating element is a silicone heating pad (4), which is attached to the outer wall of the inner liner (13). The cooling element is a semiconductor cooling pad (5), whose cold end is attached to the outer wall of the inner liner (13), and whose hot end penetrates the insulation layer (12) and faces the outside of the box (1). The hot end is provided with heat dissipation fins (51).

3. The temperature-controlled transport box for volatile chemicals as described in claim 1, characterized in that: The temperature controller (3) is equipped with a display screen and operation buttons.

4. The temperature-controlled transport box for volatile chemicals as described in claim 1, characterized in that: The locking component includes a buckle (7) and a locking rod (8). The buckle (7) is fixedly installed on the box cover (2). The surface of the buckle (7) is provided with a lock hole (71). The locking rod (8) is slidably installed on the box body (1) and is movably inserted into the lock hole (71).

5. The temperature-controlled transport box for volatile chemicals as described in claim 4, characterized in that: The side of the box (1) is provided with a sliding groove (15). A slider (81) is fixedly installed at the bottom of the locking rod (8). The slider (81) is slidably installed in the sliding groove (15). A round rod (82) is movably passed through the locking rod (8). A spring (83) is movably sleeved on the round rod (82). The slider (81) is fixedly connected to the side wall of the sliding groove (15) through the spring (83). The round rod (82) is fixedly installed in the sliding groove (15).

6. The temperature-controlled transport box for volatile chemicals as described in claim 1, characterized in that: A bottom plate (9) is fixedly installed at the bottom end of the box (1), and a number of reinforcing ribs (91) are fixedly installed at the bottom plate (9) and the side of the box (1).

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