Temperature control storage device

Abstract

The utility model provides a temperature control storage device which comprises a storage mechanism, a gas storage mechanism and a cooling mechanism, the storage mechanism comprises a storage station and a first temperature sensor, a storage area is arranged in the storage station, and the first temperature sensor and the storage area are correspondingly arranged; the gas storage mechanism comprises a gas storage bottle filled with liquefied gas; the cooling mechanism comprises a transmission pipeline, an exhaust valve and an air supply valve; the transmission pipeline is communicated with the air storage bottle and the external environment; the air supply valve and the exhaust valve are respectively arranged at two ends of the transmission pipeline. According to the utility model, dynamic adjustment of storage environment temperature is realized, stable and accurate storage temperature can be provided for materials sensitive to temperature, such as metal with a melting point lower than the environment temperature, and the storage quality is guaranteed; meanwhile, temperature information can be received and analyzed in real time, the valve can be accurately regulated and controlled, temperature fluctuation can be automatically and rapidly responded, the storage environment can be kept stable, and therefore the operation reliability of the device can be improved, and remarkable advantages are shown in the aspects of temperature control, layout, energy consumption, control and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of storage equipment, specifically refers to a temperature control storage device. BACKGROUND

[0002] In the field of material storage technology, the storage of low-melting-point metals has been facing many challenges. Low-melting-point metals such as metallic gallium or gallium alloys are widely used in high-end manufacturing fields such as electronics and semiconductors due to their unique physical and chemical properties, but they are extremely sensitive to temperature during storage. For example, the melting point of metallic gallium is only about 30°C; the eutectic gallium-indium alloy (75.5% Ga, 24.5% In) has a melting point of about 15.7°C; the gallium-tin alloy (92% Ga, 8% Sn) has a melting point of about 20°C (depending on the proportion); the gallium-bismuth alloy (60% Ga, 40% Bi) has a melting point of about 29°C; the gallium-zinc alloy (95% Ga, 5% Zn) has a melting point of about 25°C. Once the temperature is too high, these metals will change from solid to liquid, not only greatly increasing the difficulty of storage, but also making the liquid metal more prone to oxidation due to the increase in contact area with air, affecting its purity and performance, and thus adversely affecting subsequent production and processing.

[0003] Currently, the common solution in the industry is to use air conditioners to control the temperature of the storage area of low-melting-point metals, maintaining the environmental temperature at around 20°C or even lower, to ensure that the metals are in a solid state. However, this method has obvious defects. Since low-melting-point metals need to be stored in a low-temperature environment for a long time, the air conditioner needs to run continuously, which results in a large amount of electricity being consumed, and the energy expenditure of enterprises in the storage link is high every year, causing huge economic pressure. SUMMARY

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problems in the prior art and provide a temperature control storage device.

[0005] To solve the above technical problems, the utility model provides a temperature control storage device, which comprises a storage mechanism, the storage mechanism comprising a storage station and at least one first temperature sensor, the storage station being internally provided with at least one storage area, a substance to be stored being arranged in the storage area, and the first temperature sensor being arranged in one-to-one correspondence with the storage area; a gas storage mechanism, the gas storage mechanism comprising at least one gas cylinder, the gas cylinder being internally filled with liquefied gas; a cooling mechanism, the cooling mechanism comprising a transmission pipeline, an exhaust valve, and at least one gas supply valve, the transmission pipeline being arranged close to the storage station, one end of the transmission pipeline being in communication with the gas cylinder, and the other end of the transmission pipeline being in communication with the external environment; the gas supply valve and the exhaust valve being arranged at both ends of the transmission pipeline respectively, and the gas supply valve being arranged close to the gas cylinder; wherein the liquefied gas enters the transmission pipeline to cool the storage mechanism.

[0006] In one embodiment of the utility model, the transmission pipeline includes cooling pipeline, exhaust pipeline and at least one docking pipeline that communicate with each other, the cooling pipeline is close to the storage station and is provided, at least one docking pipeline communicates with at least one gas cylinder, the gas supply valve is equipped on any docking pipeline, one end of the exhaust pipeline communicates with external environment, and the exhaust valve is arranged on the exhaust pipeline;Wherein, when the temperature of the first temperature sensor is higher than the first upper limit temperature, the opening of the gas supply valve increases to the first opening, and the opening of the exhaust valve decreases to the second opening;When the temperature of the first temperature sensor is lower than the first lower limit temperature, the opening of the gas supply valve decreases to the third opening, and the opening of the exhaust valve increases to the fourth opening.

[0007] In one embodiment of the utility model, the cooling pipeline is arranged around the edge of the storage station;Or, the cooling pipeline is arranged in a serpentine manner inside the storage station;Or, the cooling pipeline extends along the diagonal direction of the storage station, and / or the cooling pipeline is arranged on the top of the storage station.

[0008] In one embodiment of the utility model, the cooling mechanism further includes a second temperature sensor, and the second temperature sensor is arranged on the transmission pipeline;Wherein, when the temperature of the second temperature sensor is higher than the second upper limit temperature, the opening of the gas supply valve increases to the fifth opening, and the opening of the exhaust valve decreases to the sixth opening;When the temperature of the second temperature sensor is lower than the second lower limit temperature, the opening of the gas supply valve decreases to the seventh opening, and the opening of the exhaust valve increases to the eighth opening.

[0009] In one embodiment of the utility model, the temperature-controlled storage device further includes a control mechanism, and the control mechanism is coupled with each first temperature sensor respectively, and is used for receiving the first temperature information sent by the first temperature sensor;Wherein, the first temperature information is the temperature of the current storage area;And / or, the temperature-controlled storage device further includes a control mechanism, and the control mechanism is coupled with each second temperature sensor respectively, and is used for receiving the second temperature information sent by the second temperature sensor;Wherein, the second temperature information is the temperature of the current transmission pipeline;And / or, the temperature-controlled storage device further includes a control mechanism, and the control mechanism is coupled with the gas supply valve, and is used for controlling the opening of the gas supply valve;And / or, the temperature-controlled storage device further includes a control mechanism, and the control mechanism is coupled with the exhaust valve, and is used for controlling the opening of the exhaust valve.

[0010] In one embodiment of the utility model, the first temperature sensor and the second temperature sensor are connected to the signal receiving end of the control mechanism respectively, and the air supply valve and the air exhaust valve are connected to the signal output end of the control mechanism respectively.

[0011] In one embodiment of the utility model, the storage station is internally provided with one storage area, which is arranged at the center of the storage station; or, the storage station is internally provided with a plurality of storage areas, which are uniformly and interval arranged on the cooling pipeline extension path.

[0012] In one embodiment of the utility model, the storage area is provided with storage containers, at least one to-be-stored substance is contained in any storage container; and / or, the side wall of the storage station is provided with a material moving port, which communicates the internal and external environments of the storage station; and / or, the storage mechanism further comprises a first heat insulation layer, which is coated on the outer surface of the storage station.

[0013] In one embodiment of the utility model, the gas storage cylinder comprises an inner wall, an outer wall and a second heat insulation layer, which are sequentially arranged from inside to outside; and / or, the to-be-stored substance is metal, and the melting point of the metal is lower than the current temperature of the environment where the temperature-controlled storage device is located.

[0014] In one embodiment of the utility model, the gas storage mechanism comprises a gas storage station and a plurality of gas storage cylinders, the gas storage station is arranged on one side of the storage station, the plurality of gas storage cylinders are arranged inside the gas storage station, the gas storage cylinders store the liquefied gas, and each gas storage cylinder is connected to the transmission pipeline.

[0015] The above technical solution of the utility model has the following advantages compared with the prior art:

[0016] The temperature-controlled storage device provided by the utility model realizes dynamic adjustment of the storage environment temperature by accurately controlling the opening degree of the air supply valve and the air exhaust valve through the first temperature sensor, can provide stable and accurate storage temperature for temperature-sensitive substances such as metals with a melting point lower than the environmental temperature, and guarantees the storage quality; moreover, the closed-loop control system composed of the control mechanism, the first temperature sensor, the air supply valve and the air exhaust valve can receive and analyze temperature information in real time and accurately control the valves, automatically and quickly respond to temperature fluctuations, maintain the stability of the storage environment, and compared with the conventional storage equipment at the present stage, the scheme provided by the utility model can improve the reliability of device operation, and has significant advantages in temperature control, layout, energy consumption and control. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the content of the utility model more easily be clearly understood, the following according to the specific embodiment of the utility model and combining with the drawings, the utility model is further explained in detail.

[0018] Figure 1 It is the structure setting schematic view of temperature control storage device in the preferred embodiment of the utility model.

[0019] Description of the drawings: 100, storage mechanism;110, storage station;111, material moving port;120, storage area;200, gas storage mechanism;210, gas storage station;220, gas cylinder;300, cooling mechanism;310, cooling pipeline;320, butt joint pipeline;330, exhaust pipeline;340, gas supply valve;350, exhaust valve;360, second temperature sensor. DETAILED DESCRIPTION

[0020] The utility model is further explained in combination with the drawings and specific embodiments, so that those skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0021] In the prior art, low-melting-point metal storage often uses air conditioning system to maintain low-temperature environment, but there are problems of high energy consumption and insufficient temperature control precision. Liquefied gas (such as nitrogen) can absorb a large amount of heat in the gasification process, and this feature can be used to achieve efficient low-temperature control. However, up to now, the prior art has not applied the heat absorption feature of liquefied gas gasification to the temperature control scene of low-melting-point metal storage, so the problem of high energy consumption and high cost caused by long-term dependence on air conditioning temperature control has not been effectively solved. Moreover, there is a common problem of insufficient temperature control precision in the liquefied gas gasification heat absorption process. Low-melting-point metal storage has very high temperature requirements, and temperature fluctuations can affect the state and quality of the metal, and existing related devices cannot meet the demand for accurate temperature regulation.

[0022] Therefore, it is urgent to develop a low-temperature control device based on the liquefied gas gasification heat absorption principle, so that it can not only fully utilize the energy-saving advantages of liquefied gas, reduce the energy consumption and cost of low-melting-point metal storage, but also accurately control the storage temperature and ensure the quality of low-melting-point metal storage.

[0023] To solve the above problems, the utility model provides a kind of temperature control storage device, which uses the heat absorption effect of liquefied gas in the gasification process to adjust the low-temperature of low-melting-point substance storage space, so that low-melting-point substance can be stably stored.

[0024] The temperature control storage device provided by the utility model mainly includes a storage mechanism, a gas storage mechanism and a cooling mechanism. The storage mechanism is used for containing the substance to be stored, the gas storage mechanism is used for containing liquefied gas for gasification and cooling, and the cooling mechanism transmits the cooling effect generated when the liquefied gas is gasified to the storage mechanism, thereby realizing stable storage of the metal inside. The substance to be stored can be metal with a melting point lower than the current temperature of the environment where the temperature control storage device is located.

[0025] Specifically, the storage mechanism includes a storage station and at least one first temperature sensor, the storage station is internally provided with at least one storage area, the substance to be stored is arranged in the storage area, and the first temperature sensor is arranged in one-to-one correspondence with the storage area, so that the temperature of the corresponding storage area can be monitored in real time through the first temperature sensor. Unlike traditional overall temperature monitoring, this design can capture the temperature difference between areas, so that accurate detection of the storage areas arranged at different positions can be realized, and local temperature abnormalities can be found in time.

[0026] Further, the inside of the storage station is a low-temperature storage space, the side wall of the low-temperature storage space is provided with at least one material moving port, and the material moving port communicates the inside and outside of the storage station. In actual use, the substance to be stored can enter and exit the low-temperature storage space through the material moving port. Further, a sealing structure can be arranged thereon to realize safe transfer of the material while maintaining the relative stability of the internal temperature, and the utility model does not make specific limitations on this.

[0027] In an embodiment, the storage mechanism further includes a first heat insulation layer, and the first heat insulation layer is wrapped on the outer surface of the storage station. The first heat insulation layer is preferably a polyurethane foam plastic heat insulation layer, which can reduce the heat exchange between the storage area and the external environment, thereby prolonging the low-temperature state of the storage area.

[0028] In another embodiment, the temperature control storage device further includes a control mechanism, the control mechanism is coupled with each first temperature sensor, and is used for receiving first temperature information sent by the first temperature sensor; wherein the first temperature information is the temperature of the current storage area. Specifically, the control mechanism can centrally analyze and process the information received by the first temperature sensor, and can feed back through a display screen and the like, thereby realizing intuitive feedback of the temperature of the substance to be stored.

[0029] Specifically, the first temperature sensor and the second temperature sensor are respectively connected to the signal receiving end of the control mechanism, and the gas supply valve and the gas exhaust valve are respectively connected to the signal output end of the control mechanism, thereby forming a complete transmission loop of the temperature signal.

[0030] In some embodiments, the storage station can be internally provided with a storage area, which is arranged at the center of the storage station to ensure that it receives a uniform degree of temperature regulation. Alternatively, the storage station can be internally provided with a plurality of storage areas, which are uniformly spaced apart along the extension path of the cooling pipeline, thereby improving the storage flexibility and available space for the to-be-cooled substances. In different embodiments, the number and arrangement position of the storage areas can be adjusted according to actual use requirements, and the present application does not make specific limitations in this regard.

[0031] Specifically, the storage area refers to an independent space divided inside the storage station, so as to monitor the internal environment of the storage station by region temperature. Further, the storage area is provided with a storage container, and each storage container contains at least one to-be-stored substance, thereby improving the storage stability of the substance. Specifically, the storage container can be configured as a stainless steel container with high thermal conductivity and corrosion resistance, which can ensure that the to-be-stored substance is isolated from the external environment and reduce the oxidation contact area. The first temperature sensor can be connected to the inner side wall of the storage container to monitor the internal environment temperature of the storage container.

[0032] The gas storage mechanism includes at least one gas cylinder, which is filled with liquefied gas inside. The gas cylinder is arranged on one side of the gas storage station to deliver liquefied gas to the storage mechanism through the cooling mechanism. Specifically, in order to improve the storage stability of the liquefied gas inside, the gas cylinder includes an inner wall, an outer wall and a second thermal insulation layer, which are arranged in sequence from inside to outside, and the inner wall and the outer wall can be configured as steel elements with high pressure resistance.

[0033] Specifically, the inner wall refers to the pressure-bearing structure layer of the gas cylinder directly contacting the liquefied gas, which can be realized by using stainless steel or aluminum alloy material, for bearing the internal pressure during storage of the liquefied gas; the outer wall refers to the protective structure layer wrapped outside the gas cylinder, which can be realized by using carbon steel or engineering plastic, for protecting the internal structure from mechanical damage; the second thermal insulation layer refers to the heat barrier layer arranged between the inner wall and the outer wall, which can be realized by using vacuum thermal insulation layer or polyurethane foam material, for blocking the transmission path of external heat to the inside of the gas cylinder.

[0034] Further, in order to improve the use range and flexibility of the present temperature-controlled storage device, the gas storage mechanism can include a gas storage station and a plurality of gas cylinders, the gas storage station is arranged on one side of the storage station, and the plurality of gas cylinders are arranged inside the gas storage station, the gas cylinders store liquefied gas, and each gas cylinder is connected to the transmission pipeline. Among them, the gas storage station can stop and protect the plurality of gas cylinders inside it to provide a more stable gas storage environment.

[0035] Further, different liquefied gases such as liquefied nitrogen, liquefied ammonia or liquefied inert gas can be stored in the plurality of gas cylinders, so that different liquefied gases can be switched according to actual use requirements, the use time of the liquefied gas can be prolonged, and the replacement frequency of the gas cylinder can be reduced, thereby effectively solving the risk of gas supply interruption caused by insufficient capacity of a single gas cylinder, prolonging the liquefied gas supply time through multiple gas cylinders, and ensuring the continuous and stable operation of the temperature control system during the storage of low-melting-point metals. In addition, the separated layout of the gas station and the storage station optimizes the space utilization of the device, and the independent pipeline design realizes flexible regulation of the gas supply amount, thereby improving the overall temperature control accuracy and system redundancy.

[0036] In some embodiments, the cooling mechanism includes a transmission pipeline, an exhaust valve and at least one gas supply valve. The transmission pipeline is arranged near the storage station, one end of which is in communication with the gas cylinder, and the other end is in communication with the external environment, which is used for the transmission of liquefied gas. The transmission pipeline is a heat exchange channel in the utility model, which can be configured as a copper pipe or an aluminum alloy pipe with good heat conductivity, thereby ensuring efficient heat conduction.

[0037] Further, the transmission pipeline includes a cooling pipeline, an exhaust pipeline and at least one docking pipeline which are in communication with each other, the cooling pipeline is connected to the storage station, and the at least one docking pipeline is in communication with the at least one gas cylinder.

[0038] The cooling pipeline refers to the pipeline arranged around or inside the storage station, which can be made of metal or heat-conducting composite material, and is used to transfer the cold energy generated by the gasification of liquefied gas to the storage area; the docking pipeline refers to the branch connecting the gas cylinder and the cooling pipeline, which is used to dock with the gas cylinder, and the specific number of the docking pipeline is not less than the number of the gas cylinder, and each gas cylinder corresponds to an independent docking pipeline, and a gas supply valve is installed on the pipeline. Based on this, when the pressure of a certain gas cylinder is insufficient, the opening of the corresponding gas supply valve can be adjusted individually; the exhaust pipeline refers to the pipeline in communication with the external environment, which generally has a diameter of 25-30 mm, and is arranged at the end of the transmission pipeline, and is used to exhaust the gas after heat exchange.

[0039] In some embodiments, the cooling pipeline is arranged around the edge of the storage station, thereby cooling from the edge to the center of the storage station, which not only can improve the uniformity of the cooling effect, but also can improve the utilization rate of the cold energy after the gasification and refrigeration of the liquefied gas.

[0040] In some embodiments, the cooling pipeline can be arranged in a serpentine shape inside the storage station, thereby reducing the spacing distance between the pipeline and the different storage areas, thereby increasing the contact area between the pipeline and the storage area to strengthen local heat exchange, and improving the refrigeration effect and efficiency and eliminating the temperature control blind area. In addition, this structure can fully utilize the internal space of the storage station to improve the rationality of the layout.

[0041] In some embodiments, the cooling pipes extend diagonally along the storage stations to improve the uniformity of the cooling range by covering the maximum span area, and / or the cooling pipes are arranged on the top of the storage stations to achieve a top-down cooling path by the natural sinking of the cryogenic gas.

[0042] Any of the docking pipes is provided with a gas supply valve, one end of the exhaust pipe is in communication with the external environment, and the exhaust valve is arranged on the exhaust pipe. Specifically, the gas supply valve and the exhaust valve are arranged at the two ends of the transmission pipeline respectively, and the gas supply valve is arranged close to the gas cylinder. Among them, the gas supply valve is used to control whether the gas cylinder can deliver liquefied gas to the cooling mechanism, and also can be used to adjust the delivery amount of liquefied gas; the exhaust valve is used to control whether the gas in the cooling mechanism can be discharged to the external environment, and also can be matched with the gas supply valve to adjust the internal pressure of the cooling transmission pipeline. Specifically, the liquefied gas from the gas cylinder enters the transmission pipeline through the gas supply valve and is quickly gasified to absorb the heat transferred by the storage station. When the opening degree of the gas supply valve increases, more liquefied gas enters the pipeline to accelerate heat absorption; when the opening degree of the exhaust valve decreases, the pressure in the pipeline increases to slow down the gasification speed and prolong the cold release time. When the temperature of a certain storage area rises, the corresponding first temperature sensor triggers the opening degree of the gas supply valve to increase and the opening degree of the exhaust valve to decrease, forming a high-pressure environment to make the liquefied gas gasify slowly and continuously output cold; when the temperature drops to the set threshold, the two valves are adjusted in the opposite direction to reduce the cold supply, realizing closed-loop control of the temperature of the storage area.

[0043] Further, the control mechanism is coupled with the gas supply valve for controlling the opening degree of the gas supply valve. Based on this, in actual use, the control mechanism can realize the adjustment of the temperature of the storage area by controlling the opening degree of the gas supply valve. Similarly, the control mechanism can be coupled with the exhaust valve for controlling the opening degree of the exhaust valve, so as to cooperate with the gas supply valve to realize more accurate comprehensive control of the effect of the cooling mechanism.

[0044] Specifically, when the temperature of the storage area exceeds the set upper limit, the opening degree of the gas supply valve is increased to increase the input amount of liquefied gas, and at the same time the opening degree of the exhaust valve is reduced to prolong the residence time of the cold gas in the pipeline. At this time, the liquefied gas is fully gasified in the cooling pipeline to absorb more heat of the storage area. When the temperature is lower than the set lower limit, the opening degree of the gas supply valve is reduced to reduce the cold input, and the opening degree of the exhaust valve is increased to accelerate the exhaust of the residual cold gas. By continuously monitoring the temperature and adjusting the opening degree combination of the two valves in real time, a closed-loop control system is formed.

[0045] The scheme can overcome the problem of mismatching between cooling strength and heat dissipation demand caused by single valve control or fixed flow supply in the existing liquefied gas cooling technology, and realize dynamic balance control of the storage area temperature, and effectively inhibit temperature fluctuation caused by unstable supply of liquefied gas.

[0046] Further, when the temperature of the first temperature sensor is higher than the first upper limit temperature, the opening of the gas supply valve is increased to the first opening, and the opening of the gas exhaust valve is reduced to the second opening, based on which, the amount of liquefied gas supplied by the gas cylinder to the cooling mechanism is increased, and the amount of gas exhausted to the external environment is reduced, and then the liquefied gas can be fully gasified in the transmission pipeline to achieve a better cooling effect; when the temperature of the first temperature sensor is lower than the first lower limit temperature, the opening of the gas supply valve is reduced to the third opening, and the opening of the gas exhaust valve is increased to the fourth opening, based on which, the amount of liquefied gas supplied by the gas cylinder to the cooling mechanism is reduced, and the amount of gas exhausted to the external environment is increased, and then the gasification effect of the liquefied gas is reduced to slow down its cooling effect.

[0047] Further, the cooling mechanism further comprises a second temperature sensor arranged on the transmission pipeline to detect the temperature of the transmission pipeline to achieve more accurate measurement. Similarly, the control mechanism is coupled with each second temperature sensor for receiving second temperature information sent by the second temperature sensor; wherein the second temperature information is the temperature of the current transmission pipeline. Further, the second temperature sensor can be connected to the signal receiving end of the control mechanism.

[0048] Further, the second temperature sensor refers to a device for real-time monitoring of the temperature change of the transmission pipeline, which can be realized by a thermocouple or a thermistor, and is arranged on the surface or inside of the transmission pipeline through which the liquefied gas flows to obtain pipeline temperature data by contact temperature measurement.

[0049] When the temperature of the second temperature sensor is higher than the second upper limit temperature, the opening of the gas supply valve can be increased to the fifth opening by the control mechanism, and the opening of the gas exhaust valve can be reduced to the sixth opening by the control mechanism, based on which, the increased gas supply makes more liquefied gas enter the pipeline to accelerate gasification, and the reduced gas exhaust maintains the high-pressure environment of the pipeline to prolong the gasification time, and the double effects promote rapid temperature drop of the pipeline; when the temperature of the second temperature sensor is lower than the second lower limit temperature, the opening of the gas supply valve is reduced to the seventh opening, and the opening of the gas exhaust valve is increased to the eighth opening, thereby reducing the gasification heat absorption strength by reducing the gas supply and increasing the gas exhaust to avoid the sudden drop of the storage area temperature caused by the overcooling of the pipeline.

[0050] Further, the first temperature sensor can cooperate with the second temperature sensor to realize accurate regulation of the temperature of the storage area.

[0051] It can be understood that the first upper limit temperature, the first lower limit temperature, the second upper limit temperature, the second lower limit temperature, and the first opening degree to the eighth opening degree can be set according to specific application needs, which are not limited herein.

[0052] Embodiments

[0053] Referring to Figure 1 As shown in the drawings, the embodiment provides a temperature-controlled storage device, which comprises a storage mechanism 100, a gas storage mechanism 200, and a cooling mechanism 300. The storage mechanism 100 comprises a storage station 110 and four first temperature sensors. The storage station 110 is internally provided with four storage areas 120. Metal gallium and gallium alloys that need to be stored at low temperature are arranged in the storage areas 120.

[0054] In the embodiment, the storage station 110 is a low-temperature storage space. The side wall of the storage station 110 is provided with at least one material moving port 111. The material moving port 111 communicates the internal and external environments of the storage station 110. In actual use, the metal to be stored can enter and exit the low-temperature storage space through the material moving port 111.

[0055] Further, the storage mechanism 100 further comprises a first heat insulation layer. The first heat insulation layer is wrapped on the outer surface of the storage station 110. The first heat insulation layer is preferably a polyurethane foam plastic heat insulation layer.

[0056] The temperature-controlled storage device further comprises a control mechanism. The control mechanism is coupled with the four first temperature sensors respectively, and is used for receiving the first temperature information sent by the first temperature sensors. Specifically, the first temperature sensors and the second temperature sensors 360 are connected to the signal receiving ends of the control mechanism respectively. The gas supply valve 340 and the exhaust valve 350 are connected to the signal output ends of the control mechanism respectively, so as to form a complete transmission loop of the temperature signal.

[0057] In the embodiment, the storage station 110 can be internally provided with four storage areas 120. The four storage areas 120 are arranged in an array in the storage station 110. Further, the storage areas 120 are provided with storage containers. Each of the storage containers contains one metal to be stored.

[0058] The gas storage mechanism 200 includes six gas cylinders 220, which are filled with nitrogen liquefied gas and ammonia liquefied gas respectively. The gas cylinders 220 are arranged on one side of the gas storage station 210, and include an inner wall, a second heat insulation layer and an outer wall, which are arranged from inside to outside. Specifically, the volume of any gas cylinder 220 in the embodiment is configured to be 800 liters, and the maximum working pressure is 1.8 MPa. In different embodiments, the volume of the gas cylinder 220 can be configured to be 500-1000 liters according to actual use requirements, and the maximum working pressure can be configured to be 1.6-2.5 MPa.

[0059] The cooling mechanism 300 includes a transmission pipeline, an exhaust valve 350 and six gas supply valves 340 corresponding to the six gas cylinders 220. The transmission pipeline is arranged close to the storage station 110, one end of which is in communication with the gas cylinder 220, and the other end of which is in communication with the external environment, and is used for transmission of the liquefied gas.

[0060] In the embodiment, the transmission pipeline includes a cooling pipeline 310, an exhaust pipeline 330 and six docking pipelines 320 corresponding to the six gas cylinders 220, which are in communication with each other. The cooling pipeline 310 is arranged close to the storage station 110, and the six docking pipelines 320 are in communication with at least one gas cylinder 220 respectively. The cooling pipeline 310 is arranged around the edge of the storage station 110.

[0061] Any docking pipeline 320 is provided with a gas supply valve 340, one end of the exhaust pipeline 330 is in communication with the external environment, and the exhaust valve 350 is arranged on the exhaust pipeline 330. Specifically, the gas supply valve 340 and the exhaust valve 350 are arranged at two ends of the transmission pipeline respectively, and the gas supply valve 340 is arranged close to the gas cylinder 220.

[0062] Further, the control mechanism is coupled with the gas supply valve 340 and the exhaust valve 350, and is used for controlling the opening degree of the gas supply valve 340 and the exhaust valve 350. When the temperature of the storage area 120 exceeds the first upper limit temperature (for example: 25℃), the control mechanism generates a first control signal to control the opening degree of the gas supply valve 340 to increase the input amount of the liquefied gas, and to control the opening degree of the exhaust valve 350 to reduce the residence time of the cold gas in the pipeline. At this time, the liquefied gas is fully gasified in the cooling pipeline 310, and absorbs more heat of the storage area 120. When the temperature is lower than the first lower limit temperature, the control mechanism generates a second control signal to control the opening degree of the gas supply valve 340 to reduce the cold input, and to control the opening degree of the exhaust valve 350 to accelerate the exhaust of the residual cold gas.

[0063] In the embodiment, when the temperature of the first temperature sensor is higher than the first upper limit temperature, the opening of the gas supply valve 340 is increased to 75%, and the opening of the gas exhaust valve 350 is reduced to 25%, based on which, the amount of liquefied gas supplied by the gas cylinder 220 to the cooling mechanism 300 is increased, and the amount of gas exhausted to the external environment is reduced, so that the liquefied gas can be fully gasified in the transmission pipeline to achieve a better cooling effect. When the temperature of the first temperature sensor is lower than the first lower limit temperature (for example, 0 DEG C), the opening of the gas supply valve 340 is reduced to 25%, and the opening of the gas exhaust valve 350 is increased to 75%, based on which, the amount of liquefied gas supplied by the gas cylinder 220 to the cooling mechanism 300 is reduced, and the amount of gas exhausted to the external environment is increased, so that the gasification effect of the liquefied gas is reduced to slow down the cooling effect.

[0064] In the embodiment, the cooling mechanism 300 further comprises a second temperature sensor 360 arranged on the transmission pipeline to detect the temperature of the transmission pipeline to achieve more accurate measurement. Similarly, the control mechanism is coupled with each second temperature sensor 360 for receiving the second temperature information sent by the second temperature sensor 360. The second temperature sensor 360 is preferably a thermocouple arranged inside the transmission pipeline through which the liquefied gas flows to obtain pipeline temperature data by contact temperature measurement.

[0065] When the temperature of the second temperature sensor 360 is higher than the second upper limit temperature (for example, 23 DEG C), the opening of the gas supply valve 340 can be increased to a fifth opening (for example, 60%) by the control mechanism, and the opening of the gas exhaust valve 350 can be reduced to a sixth opening (for example, 40%) by the control mechanism, based on which, the increased gas supply amount causes more liquefied gas to enter the pipeline to accelerate gasification, and the reduced gas exhaust amount maintains the high pressure environment of the pipeline to prolong the gasification time, so that the double effects cause the pipeline temperature to rapidly decrease. When the temperature of the second temperature sensor 360 is lower than the second lower limit temperature (for example, -3 DEG C), the opening of the gas supply valve 340 is reduced to a seventh opening (for example, 40%) by the control mechanism, and the opening of the gas exhaust valve 350 is increased to an eighth opening (for example, 60%) by the control mechanism, so that the reduced gas supply amount and the increased gas exhaust amount reduce the gasification heat absorption intensity to avoid the temperature of the storage area 120 from rapidly decreasing due to the overcooling of the pipeline.

[0066] Compared with the prior art, the utility model does not need to run the air conditioner for a long time, reduces energy consumption, and relieves the economic pressure of enterprises. Meanwhile, the utility model utilizes the liquefied gas that the enterprise will use itself, does not need additional investment, and reduces cost. In addition, the temperature of the storage area can be accurately controlled through the control of the temperature sensor and the valve, so that the strict requirement of the temperature of the low-melting-point metal storage is met.

[0067] Compared with the prior art, the utility model has the following advantages:

[0068] The utility model discloses a liquefied gas in transmission pipeline gasification heat absorption is carried out to the storage area cooling, utilizes the gas phase change characteristic and realizes the temperature control effect of high -efficient energy -conserving, thereby significantly reduces the refrigeration energy consumption of long time, and simultaneously through the cooperation of gas supply valve and exhaust valve between the promotion temperature control precision, satisfies the strict requirement of storage low melting point metal to temperature. In addition, need not long -term operation air conditioner, reduced energy consumption, alleviated economic pressure, and, utilize the liquefied gas of using itself, need not additional investment, reduced cost, compared with the mode of using refrigerating machine as cold source, the utility model discloses need not complex refrigeration system, simple structure, convenient operation. Above all, the scheme provided by the utility model discloses simple structure, convenient operation, controllability is strong and cooling effect high -efficient stable and so on advantage.

[0069] Obviously, the above embodiments are only examples for clearly illustrating, not the limitation of the embodiments. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here need not and can not be exhausted to all the embodiments. The obvious changes or variations derived from still within the scope of the utility model creates protection.

Claims

1. A temperature-controlled storage device, characterized by: The application relates to a temperature-controlled storage device. The temperature-controlled storage device comprises a storage mechanism, a gas storage mechanism and a cooling mechanism. The storage mechanism comprises a storage station and at least one first temperature sensor. The storage station is internally provided with at least one storage area in which a substance to be stored is arranged. The first temperature sensor is arranged in one-to-one correspondence with the storage area.

2. The temperature-controlled storage apparatus of claim 1, wherein: The gas storage mechanism comprises at least one gas cylinder. The gas cylinder is internally filled with liquefied gas. The cooling mechanism comprises a transmission pipeline, an exhaust valve and at least one gas supply valve. The transmission pipeline is arranged close to the storage station. One end of the transmission pipeline is in communication with the gas cylinder. The other end of the transmission pipeline is in communication with the external environment. The gas supply valve and the exhaust valve are arranged at the two ends of the transmission pipeline respectively.

4. The temperature-controlled storage device of claim 1, wherein: The gas supply valve is arranged close to the gas cylinder. The liquefied gas enters the transmission pipeline to cool the storage mechanism. The transmission pipeline comprises a cooling pipeline, an exhaust pipeline and at least one docking pipeline. The cooling pipeline is arranged close to the storage station. At least one docking pipeline is in communication with at least one gas cylinder. The gas supply valve is arranged on any docking pipeline. One end of the exhaust pipeline is in communication with the external environment. The exhaust valve is arranged on the exhaust pipeline. When the temperature of the first temperature sensor is higher than a first upper limit temperature, the opening degree of the gas supply valve is increased to a first opening degree. The opening degree of the exhaust valve is reduced to a second opening degree. When the temperature of the first temperature sensor is lower than a first lower limit temperature, the opening degree of the gas supply valve is reduced to a third opening degree. The opening degree of the exhaust valve is increased to a fourth opening degree.

3. The temperature-controlled storage device according to claim 2, wherein: The cooling pipeline is arranged around the edge of the storage station. Alternatively, the cooling pipeline is arranged in a serpentine manner inside the storage station. Alternatively, the cooling pipeline extends along the diagonal direction of the storage station. The cooling pipeline is arranged on the top of the storage station. The cooling mechanism further comprises a second temperature sensor arranged on the transmission pipeline. When the temperature of the second temperature sensor is higher than a second upper limit temperature, the opening degree of the gas supply valve is increased to a fifth opening degree. The opening degree of the exhaust valve is reduced to a sixth opening degree. When the temperature of the second temperature sensor is lower than a second lower limit temperature, the opening degree of the gas supply valve is reduced to a seventh opening degree. The opening degree of the exhaust valve is increased to an eighth opening degree.

5. The temperature-controlled storage device according to claim 4, wherein: The temperature-controlled storage device further comprises a control mechanism coupled with each first temperature sensor for receiving first temperature information sent by the first temperature sensor. The first temperature information is the current temperature of the storage area. The temperature-controlled storage device further comprises a control mechanism coupled with each second temperature sensor for receiving second temperature information sent by the second temperature sensor. The second temperature information is the current temperature of the transmission pipeline. And / or, the temperature-controlled storage device further comprises a control mechanism coupled with the air supply valve for controlling the opening degree of the air supply valve. And / or, the temperature-controlled storage device further comprises a control mechanism coupled with the air exhaust valve for controlling the opening degree of the air exhaust valve.

6. The temperature-controlled storage apparatus of claim 5, wherein: The first temperature sensor and the second temperature sensor are respectively connected to the signal receiving end of the control mechanism, and the air supply valve and the air exhaust valve are respectively connected to the signal output end of the control mechanism.

7. The temperature-controlled storage device according to claim 2, wherein: The storage station is internally provided with one storage area, which is arranged at the center of the storage station. Alternatively, the storage station is internally provided with a plurality of storage areas, which are uniformly and interval arranged on the extension path of the cooling pipeline.

8. The temperature-controlled storage device of claim 1, wherein: The storage area is provided with storage containers, and any of the storage containers contains at least one to-be-stored substance. And / or, the storage station is provided with a material moving port on the side wall, which communicates the internal and external environments of the storage station. And / or, the storage mechanism further comprises a first heat insulation layer, which is wrapped on the outer surface of the storage station.

9. The temperature-controlled storage device of claim 1, wherein: The gas storage bottle comprises an inner wall, an outer wall and a second heat insulation layer, which are sequentially arranged from inside to outside. And / or, the to-be-stored substance is metal, and the melting point of the metal is lower than the current temperature of the environment in which the temperature-controlled storage device is located.

10. The temperature-controlled storage device of claim 1, wherein: The gas storage mechanism comprises a gas storage station and a plurality of gas storage bottles, the gas storage station is arranged on one side of the storage station, the plurality of gas storage bottles are arranged inside the gas storage station, the gas storage bottles store the liquefied gas, and each of the gas storage bottles is connected to the transmission pipeline.

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