Temperature control device for a box at low pressure
Patent Information
- Application Number
- CN202522690951.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-19
AI Technical Summary
[0004]本实用新型的目的在于提供一种低气压状态下箱体的温度控制装置，旨在解决现有高低温低气压箱，在进行温度与低气压综合试验时，由于采用空气对流换热方式，因此在低气压状态下箱内气体稀薄空气对流效果极差无法有效换热的问题
[0011]本实用新型的一种低气压状态下箱体的温度控制装置，使用时其中一个所述循环泵运作，硅油在整体的管路中循环流动，当所述贮存箱内的设定的温度低于当前温度时，控制其中一个所述制冷件启动硅油温度开始降低，随后对箱内的温度进行降低，当硅油温度低于设定温度10℃时，硅油温度进入恒温阶段，箱内温度降到接近设定值时硅油温度缓慢升高到接近箱内设定值，直至箱内温度和硅油温度趋于一致时完成降温，当所述贮存箱内设定温度高于当前温度时，所述管道加热器启动，硅油温度上升箱内跟随升高，当硅油温度升到高于设定温度时10℃时，硅油温度进入恒温阶段，箱内温度升到接近设定值时硅油温度缓慢降低到接近箱内设定值，直至箱内温度和硅油温度趋于一致时升温过程完成，从而解决了现有高低温低气压箱，在进行温度与低气压综合试验时，由于采用空气对流换热方式，因此在低气压状态下箱内气体稀薄空气对流效果极差无法有效换热的问题。
Smart Images
Figure CN224907275U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmental testing equipment technology, and in particular to a temperature control device for a chamber under low pressure conditions. Background Technology
[0002] In environmental testing equipment, when high and low temperature low pressure chambers conduct comprehensive tests on temperature and low pressure, heat exchange within the chamber is generally achieved through air convection heat exchange, thus controlling the temperature inside the chamber.
[0003] Currently, existing high and low temperature low pressure chambers, when conducting comprehensive temperature and low pressure tests, use air convection heat exchange, which results in poor air convection under low pressure conditions due to the thin gas inside the chamber. Utility Model Content
[0004] The purpose of this invention is to provide a temperature control device for a chamber under low pressure conditions, which aims to solve the problem that existing high and low temperature low pressure chambers, when conducting comprehensive temperature and low pressure tests, suffer from poor heat exchange due to the use of air convection heat exchange, resulting in extremely poor air convection effect in the chamber under low pressure conditions.
[0005] To achieve the above objectives, this utility model provides a temperature control device for a box under low pressure conditions, including a storage box and a temperature control component.
[0006] The temperature control assembly includes an inner wall, a heat sink coil layer, an insulation layer, a temperature detection element, a delivery pipe, an oil-water separator, an oil storage element, two circulating pumps, two refrigeration elements, a pipe heater, and a return pipe.
[0007] The inner liner wall is fixedly connected to the storage tank and located on one side of the storage tank; the heat sink coil layer is fixedly connected to the inner liner wall and located on one side of the inner liner wall; the insulation layer is fixedly connected to the heat sink coil layer and located on one side of the heat sink coil layer; the temperature detection element is disposed inside the storage tank; the delivery pipe is connected to the heat sink coil layer and located on one side of the heat sink coil layer; the oil storage component is disposed on one side of the delivery pipe; the two circulation pumps are respectively connected to the oil storage component and are respectively located on one side of the oil storage component; the two cooling components are respectively disposed on one side of the two circulation pumps; the pipe heaters are respectively connected to the two cooling components and are located on one side of the two cooling components; the return pipe is connected to the pipe heaters and also connected to the heat sink coil layer and is located on one side of the pipe heaters.
[0008] The temperature detection device includes a safety temperature sensor, a temperature control sensor, and an over-temperature sensor. The safety temperature sensor is located inside the storage box; the temperature control sensor is located inside the storage box; and the over-temperature sensor is located inside the storage box.
[0009] The oil storage component includes an expansion tank, a safety valve, and a filler port. The expansion tank is connected to the oil-water separator and is located on one side of the oil-water separator. The safety valve is connected to the expansion tank and is located on one side of the expansion tank. The filler port is connected to the expansion tank and is located on one side of the expansion tank.
[0010] The refrigeration components include a plate evaporator and a refrigeration unit. The plate evaporator is connected to the circulating pump and is located on one side of the circulating pump. The refrigeration unit is connected to the plate evaporator and is located on one side of the plate evaporator.
[0011] This utility model discloses a temperature control device for a chamber under low pressure conditions. During use, one of the circulating pumps operates, and silicone oil circulates throughout the overall piping. When the set temperature inside the storage chamber is lower than the current temperature, one of the cooling components is activated to lower the silicone oil temperature, subsequently reducing the chamber temperature. When the silicone oil temperature is 10°C below the set temperature, it enters a constant temperature phase. As the chamber temperature approaches the set value, the silicone oil temperature slowly rises to approach the set value again, until the chamber temperature and silicone oil temperature become identical, completing the cooling process. When the set temperature is higher than the current temperature, the pipe heater is activated, and the temperature of the silicone oil inside the chamber rises accordingly. When the silicone oil temperature rises to 10°C above the set temperature, the silicone oil temperature enters a constant temperature stage. When the temperature inside the chamber rises to near the set value, the silicone oil temperature slowly decreases to near the set value inside the chamber until the temperature inside the chamber and the silicone oil temperature tend to be consistent, at which point the heating process is complete. This solves the problem that existing high and low temperature low pressure chambers, when conducting comprehensive temperature and low pressure tests, suffer from poor heat exchange due to the use of air convection heat exchange, resulting in thin air convection and ineffective heat exchange under low pressure conditions. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the overall external structure of this utility model.
[0015] 101-Storage tank, 102-Inner liner wall, 103-Heat sink coil layer, 104-Insulation layer, 105-Temperature detection element, 106-Transfer pipe, 107-Oil-water separator, 108-Oil storage element, 109-Circulation pump, 110-Refrigeration element, 111-Pipe heater, 112-Return pipe, 113-Safety temperature sensor, 114-Temperature control sensor, 115-Over-temperature sensor, 116-Expansion tank, 117-Safety valve, 118-Filling port, 119-Plate evaporator, 120-Refrigeration unit, 121-Temperature control component. Detailed Implementation
[0016] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0017] Please see Figures 1-2 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a schematic diagram of the overall external structure of this utility model.
[0018] This utility model discloses a temperature control device for a box under low pressure conditions, comprising a storage box 101 and a temperature control component 121. The temperature control component 121 includes an inner wall 102, a heat sink coil layer 103, an insulation layer 104, a temperature detection element 105, a delivery pipe 106, an oil-water separator 107, an oil storage component 108, two circulating pumps 109, two cooling components 110, a pipe heater 111, and a return pipe 112. The temperature detection element 105 includes a safety temperature sensor. The system includes a sensor 113, a temperature control sensor 114, and an over-temperature sensor 115. The oil storage component 108 includes an expansion tank 116, a safety valve 117, and a filler port 118. The refrigeration component 110 includes a plate evaporator 119 and a refrigeration unit 120. The aforementioned solution solves the problem that existing high-low temperature and low-pressure chambers, when conducting comprehensive temperature and low-pressure tests, suffer from poor heat exchange due to the use of air convection heat exchange, resulting in thin air convection and ineffective heat exchange under low-pressure conditions.
[0019] In this specific embodiment, the storage box 101 is used in conjunction with the temperature control component 121 to form a high-low temperature low-pressure box.
[0020] The inner liner wall 102 is fixedly connected to the storage tank 101 and located on one side of the storage tank 101; the heat sink coil layer 103 is fixedly connected to the inner liner wall 102 and located on one side of the inner liner wall 102; the insulation layer 104 is fixedly connected to the heat sink coil layer 103 and located on one side of the heat sink coil layer 103; the temperature detection element 105 is disposed inside the storage tank 101; the delivery pipe 106 communicates with the heat sink coil layer 103 and is located on one side of the heat sink coil layer 103; and the oil storage element 108 is disposed on one side of the delivery pipe 106. Two circulating pumps 109 are respectively connected to the oil storage unit 108 and are located on one side of the oil storage unit 108; two cooling units 110 are respectively disposed on one side of the two circulating pumps 109; the pipe heaters 111 are respectively connected to the two cooling units 110 and are located on one side of the two cooling units 110; the return pipe 112 is connected to the pipe heater 111 and to the heat sink coil layer 103, and is located on one side of the pipe heater 111. When one of the circulating pumps 109 operates, the silicone oil circulates in the entire pipeline. When the storage tank 1... When the set temperature in storage tank 101 is lower than the current temperature, one of the cooling components 110 is activated to lower the silicone oil temperature, subsequently reducing the temperature inside the tank. When the silicone oil temperature is 10°C lower than the set temperature, the silicone oil temperature enters a constant temperature stage. As the temperature inside the tank approaches the set value, the silicone oil temperature slowly rises to approach the set value until the temperature inside the tank and the silicone oil temperature become consistent, completing the cooling process. When the set temperature inside storage tank 101 is higher than the current temperature, the pipe heater 111 is activated, and the silicone oil temperature rises accordingly inside the tank. When the silicone oil temperature rises to 10°C higher than the set temperature, the silicone oil... Once the temperature reaches the constant temperature stage, the temperature inside the chamber rises to near the set value, and the temperature of the silicone oil slowly decreases to near the set value inside the chamber. The heating process is completed when the temperature inside the chamber and the temperature of the silicone oil tend to be the same. Furthermore, if any one of the circulating pumps 109 fails, the other can be started to circulate the silicone oil as a backup. If any one of the cooling components 110 fails, the other can be started to cool the silicone oil as a backup. This solves the problem that existing high and low temperature low pressure chambers, when conducting comprehensive temperature and low pressure tests, suffer from poor air convection heat exchange due to the use of air convection heat exchange, resulting in ineffective heat exchange under low pressure conditions due to the thin air convection effect inside the chamber.
[0021] Secondly, the safety temperature sensor 113 is disposed inside the storage box 101; the temperature control sensor 114 is disposed inside the storage box 101; and the over-temperature sensor 115 is disposed inside the storage box 101. The safety temperature sensor 113, the temperature control sensor 114, and the over-temperature sensor 115 are used to monitor the temperature parameters inside the storage box 101.
[0022] Furthermore, the expansion tank 116 is connected to the oil-water separator 107 and is located on one side of the oil-water separator 107; the safety valve 117 is connected to the expansion tank 116 and is located on one side of the expansion tank 116; the filler port 118 is connected to the expansion tank 116 and is located on one side of the expansion tank 116. The expansion tank 116 stores silicone oil, the filler port 118 is used to inject silicone oil into the expansion tank 116 for storage, and the safety valve 117 is used to overflow when there is too much silicone oil.
[0023] In addition, the plate evaporator 119 is connected to the circulating pump 109 and is located on one side of the circulating pump 109; the refrigeration unit 120 is connected to the plate evaporator 119 and is located on one side of the plate evaporator 119, and the plate evaporator 119 cooperates with the refrigeration unit 120 to cool down the silicone oil.
[0024] In using this invention, one of the circulating pumps 109 operates, and the silicone oil circulates throughout the pipeline. When the set temperature inside the storage tank 101 is lower than the current temperature, one of the cooling components 110 is activated to begin lowering the silicone oil temperature, subsequently reducing the temperature inside the tank. When the silicone oil temperature is 10°C lower than the set temperature, the silicone oil temperature enters a constant temperature stage. As the temperature inside the tank drops to near the set value, the silicone oil temperature slowly rises to near the set value until the temperature inside the tank and the silicone oil temperature become consistent, completing the cooling process. When the set temperature inside the storage tank 101 is higher than the current temperature, the pipeline heater 111 is activated, and the silicone oil temperature rises accordingly inside the tank. When the silicone oil temperature rises to 10°C above the set temperature, the silicone oil temperature enters a constant temperature stage. When the temperature inside the chamber rises to near the set value, the silicone oil temperature slowly decreases to near the set value inside the chamber until the temperature inside the chamber and the silicone oil temperature tend to be consistent, at which point the heating process is complete. Furthermore, if any one of the circulating pumps 109 fails, the other can be started to circulate the silicone oil as a backup. If any one of the cooling components 110 fails, the other can be started to cool the silicone oil as a backup. This solves the problem that existing high and low temperature low pressure chambers, when conducting temperature and low pressure comprehensive tests, suffer from poor air convection heat exchange due to the use of air convection heat exchange, resulting in ineffective heat exchange under low pressure conditions due to the thin air convection effect inside the chamber.
[0025] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A temperature control device for a box under low pressure conditions, comprising a storage box, characterized in that, It also includes temperature control components, The temperature control assembly includes an inner wall, a heat sink coil layer, an insulation layer, a temperature detection element, a delivery pipe, an oil-water separator, an oil storage element, two circulating pumps, two refrigeration elements, a pipeline heater, and a return pipe. The inner liner wall is fixedly connected to the storage tank and located on one side of the storage tank; the heat sink coil layer is fixedly connected to the inner liner wall and located on one side of the inner liner wall; the insulation layer is fixedly connected to the heat sink coil layer and located on one side of the heat sink coil layer; the temperature detection element is disposed inside the storage tank; the delivery pipe is connected to the heat sink coil layer and located on one side of the heat sink coil layer; the oil storage component is disposed on one side of the delivery pipe; the two circulation pumps are respectively connected to the oil storage component and are respectively located on one side of the oil storage component; the two cooling components are respectively disposed on one side of the two circulation pumps; the pipe heaters are respectively connected to the two cooling components and are located on one side of the two cooling components; the return pipe is connected to the pipe heaters and also connected to the heat sink coil layer and is located on one side of the pipe heaters.
2. The temperature control device for a box under low pressure conditions as described in claim 1, characterized in that, The temperature detection device includes a safety temperature sensor, a temperature control sensor, and an over-temperature sensor. The safety temperature sensor is located inside the storage box; the temperature control sensor is located inside the storage box; and the over-temperature sensor is located inside the storage box.
3. The temperature control device for a box under low pressure conditions as described in claim 2, characterized in that, The oil storage device includes an expansion tank, a safety valve, and a filler port. The expansion tank is connected to the oil-water separator and is located on one side of the oil-water separator. The safety valve is connected to the expansion tank and is located on one side of the expansion tank. The filler port is connected to the expansion tank and is located on one side of the expansion tank.
4. The temperature control device for a box under low pressure conditions as described in claim 3, characterized in that, The refrigeration components include a plate evaporator and a refrigeration unit. The plate evaporator is connected to the circulating pump and is located on one side of the circulating pump. The refrigeration unit is connected to the plate evaporator and is located on one side of the plate evaporator.