Cold storage vehicle and movable cold storage device thereof

Abstract

The invention provides a cold storage vehicle and a movable cold storage device thereof. The movable cold storage device comprises a shell, a heat exchange module and a pipeline assembly. The heat exchange module is arranged in the shell and comprises a shell body, a heat exchange assembly and a cold storage agent, the heat exchange assembly and the cold storage agent are arranged in the shell body, and the interior of the heat exchange assembly is used for circulation of a secondary refrigerant. The pipeline assembly can be contained in the shell, a first connecting part of the pipeline assembly is communicated with an inlet of the heat exchange assembly, a second connecting part of the pipeline assembly is communicated with an outlet of the heat exchange assembly, and the first connecting part and the second connecting part are both used for being communicated and detachably connected with external cooling equipment or to-be-cooled equipment. The heat exchange module is quickly connected with external cooling equipment or to-be-cooled equipment to form a loop for a secondary refrigerant to flow, so that the heat exchange assembly absorbs cold to solidify a cold storage agent for cooling, or the heat exchange assembly absorbs heat to melt the cold storage agent for cooling, and therefore, the cold energy of the external cooling equipment can be conveniently recycled, and the to-be-cooled equipment can be conveniently cooled in different places; lNG cold energy is efficiently utilized, and economic benefits are improved.

Description

Technical Field

[0001] The invention relates to the technical field of cold energy recovery and utilization, and in particular to a cold storage vehicle and a mobile cold storage device thereof. Background Art

[0002] As people's living standards improve, the demand for resources is increasing. In human daily activities, a lot of cold energy is not effectively recycled and is directly wasted. For example, LNG (liquefied natural gas) releases a lot of cold energy during the gasification process of the gasification station. Since the gasification station is generally built in a relatively remote area, it is not convenient to directly use this part of the cold energy, and it is often directly discharged into the environment, which not only wastes energy, but also has a certain impact on the surrounding environment (generating fog that affects surrounding traffic safety, causing a sudden drop in the temperature of local waters or the atmosphere, etc.).

[0003] Since LNG cold energy is extremely low in temperature and is generally located at the edge of cities or suburbs, how to recover, efficiently store, and low-cost transmit cold energy to achieve effective remote utilization of cold energy from gasification stations is an urgent problem to be solved. Summary of the invention

[0004] The object of the present invention is to provide a cold storage vehicle and a mobile cold storage device thereof which can store and transmit cold energy safely and efficiently, and to realize the low-cost and effective utilization of cold energy in different places through the cold storage vehicle and the mobile cold storage device thereof.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] According to one aspect of the present application, the present application provides a mobile cold storage device, comprising:

[0007] shell;

[0008] A heat exchange module is arranged in the shell, and the heat exchange module includes a shell and a heat exchange component and a refrigerant arranged in the shell. The heat exchange component has an inlet and an outlet, and the inlet and outlet of the heat exchange component are both used to communicate with an external cooling device or a device to be charged with cold. The interior of the heat exchange component is used for the circulation of a refrigerant; wherein, when the temperature of the refrigerant entering the heat exchange component is lower than the eutectic temperature of the refrigerant, the refrigerant inside the heat exchange component can absorb the cold of the refrigerant and reduce the temperature to below the eutectic point and completely solidify to achieve cold charging; when the temperature of the refrigerant entering the heat exchange component is higher than the eutectic temperature of the refrigerant, the refrigerant can absorb the heat of the refrigerant and increase the temperature to above the eutectic point and completely melt to achieve cooling;

[0009] A piping assembly capable of being accommodated in the shell; the piping assembly comprises a first connecting component and a second connecting component, the first connecting component being communicated with the inlet of the heat exchange assembly, and the first connecting component being used for communicating with and detachably connecting to an external cooling device or a device to be charged with cooling; the second connecting component being communicated with the outlet of the heat exchange assembly, and the second connecting component being used for communicating with and detachably connecting to an external cooling device or a device to be charged with cooling.

[0010] In some embodiments, the number of the first connecting components is multiple, and the multiple first connecting components are connected in parallel; and / or,

[0011] There are multiple second connecting components, and the multiple second connecting components are connected in parallel.

[0012] In some embodiments, the first connecting component includes a connecting pipe and a quick-connect plug, the connecting pipe is used to connect the inlet of the heat exchange component with the quick-connect plug, and the quick-connect plug is used to plug and cooperate with an external cooling device or a device to be charged with cooling;

[0013] The second connecting component has the same structure as the first connecting component.

[0014] In some embodiments, the heat exchange assembly includes a plurality of heat exchange tubes and a plurality of heat exchange fins, the plurality of heat exchange fins are arranged at intervals, and the plurality of heat exchange tubes pass through the plurality of heat exchange fins at intervals; each of the heat exchange tubes has an inlet and an outlet, the inlet of each of the heat exchange tubes is connected to the first connecting component, and the outlet of each of the heat exchange tubes is connected to the second connecting component; the surface of the heat exchange fins forms a heat exchange surface, and the heat exchange fins are used to increase the heat exchange area.

[0015] In some embodiments, the inlet and outlet of each heat exchange tube are arranged on opposite sides of the whole body formed by the plurality of heat exchange fins;

[0016] The heat exchange assembly includes a liquid inlet pipe, the liquid inlet pipe is connected to the inlet of each heat exchange pipe, and the liquid inlet pipes of the plurality of heat exchange assemblies are connected to the first connecting component through a liquid inlet main pipe;

[0017] The heat exchange assembly includes a liquid outlet pipe, which is connected to the outlet of each heat exchange pipe. The liquid outlet pipes of the plurality of heat exchange assemblies are connected to the second connecting component through a liquid outlet main pipe.

[0018] In some embodiments, the heat exchange assembly includes a plurality of connecting plates and a plurality of connecting rods, the plurality of connecting plates are arranged at intervals, a plurality of heat exchange fins are arranged at intervals between two adjacent connecting plates, and the upper and lower ends of two adjacent connecting plates are respectively connected and fixed by at least one connecting rod; each heat exchange tube passes through the plurality of connecting plates and the plurality of heat exchange fins.

[0019] In some embodiments, there are multiple heat exchange components, and the multiple heat exchange components are connected in parallel between the first connecting component and the second connecting component.

[0020] In some embodiments, the coolant is a solid-liquid phase change material;

[0021] The coolant is an inorganic salt aqueous solution.

[0022] In some embodiments, the surface of the heat exchange component in contact with the refrigerant and the inner surface of the shell are both provided with a protective layer, and the protective layer is used to isolate the heat exchange component, the shell and the refrigerant; and / or,

[0023] The outer surface of the shell is provided with a heat insulation layer, and the heat insulation layer is used for heat preservation and heat insulation of the heat exchange module.

[0024] In some embodiments, the thermal insulation layer is made of thermal resistance material;

[0025] The heat insulation layer is an aerogel layer.

[0026] In some embodiments, a partition is provided in the outer shell, the outer periphery of the partition is fixed to the inner wall of the outer shell, and the partition divides the interior of the outer shell into two independent accommodating chambers, one of which is used to accommodate the heat exchange module, and the other is used to accommodate the pipeline assembly.

[0027] In some embodiments, the mobile cold storage device further includes a liquid pump, the liquid pump is arranged in the housing, the inlet of the liquid pump is connected to the first connecting component, the outlet of the liquid pump is connected to the inlet of each heat exchange component, and the liquid pump is used to pump the coolant;

[0028] The mobile cold storage device also includes a generator, which is arranged inside the shell and electrically connected to the liquid pump, and is used to supply power to the liquid pump.

[0029] In some embodiments, the mobile cold storage device further includes an expansion tank arranged inside the shell, the expansion tank is hollow inside to form an expansion groove, and the expansion tank is connected between the first connecting component and the inlet of the liquid pump.

[0030] According to another aspect of the present application, the present application also provides a cold storage vehicle, comprising a vehicle body and a mobile cold storage device as described in any one of the above items, wherein the mobile cold storage device is arranged on the vehicle body.

[0031] It can be seen from the above technical solution that the present invention has at least the following advantages and positive effects:

[0032] In the present application, the inlet of the heat exchange component of the heat exchange module can be connected to the external cooling device or the equipment to be charged with cold by detachably connecting it with the first connecting component. Similarly, the outlet of the heat exchange component of the heat exchange module can be connected to the external cooling device or the equipment to be charged with cold by detachably connecting it with the external cooling device or the equipment to be charged with cold by the second connecting component.

[0033] That is, through the above method, a loop is formed between the inlet and outlet of the heat exchange component of the heat exchange module and the external cooling device for the flow of the secondary coolant. When the temperature of the secondary coolant entering the heat exchange component is lower than the eutectic temperature of the refrigerant, and the secondary coolant circulates in the above loop, the cold energy obtained by the secondary coolant in the external cooling device can be continuously transferred to the heat exchange component of the heat exchange module, so that the temperature of the refrigerant absorbing cold energy drops below the eutectic point and completely solidifies to achieve cold charging; the heat exchange module can absorb the secondary coolant The heat of the refrigerant is absorbed and released; or, through the above method, a loop can be formed between the inlet and outlet of the heat exchange component of the heat exchange module and the external equipment to be charged with cold, so that the refrigerant can flow. When the temperature of the refrigerant entering the heat exchange module is higher than the eutectic point temperature of the refrigerant, and the refrigerant circulates in the above loop, the heat of the refrigerant can be continuously transferred to the heat exchange component of the heat exchange module, so that the solidified refrigerant absorbs heat and the temperature rises to above the eutectic point and completely melts to achieve cooling.

[0034] In short, the mobile cold storage device in the present application can transfer the cold energy obtained and stored by heat exchange with the external cooling equipment to the equipment to be charged with cold energy, so as to realize the recovery and utilization of cold energy. In addition, by transferring the mobile cold storage device, the cold energy can be utilized off-site, and the efficient use of LNG cold energy can improve economic benefits.

[0035] Furthermore, the first connecting component and the second connecting component are both connected to the external cooling equipment or the equipment to be charged with cold in a detachable manner, which facilitates quick connection or quick disconnection between the mobile cold storage device and the external cooling equipment or the equipment to be charged with cold, and the operation is convenient and simple.

[0036] In addition, the pipeline assembly can be accommodated in the shell when not in use, which can store and protect the pipeline assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the structure of the mobile cold storage device in this embodiment.

[0038] Figure 2 It is a schematic diagram of the process structure of the mobile cold storage device in this embodiment.

[0039] Figure 3 It is a schematic diagram of the process structure of the heat exchange module in this embodiment.

[0040] Figure 4 Schematic diagram of the structure of the heat exchange component in this embodiment.

[0041] Figure 5 is a side view of the heat exchange assembly in this embodiment.

[0042] The following are the descriptions of the reference numerals:

[0043] 1. Shell; 11. Partition; 12. Accommodating chamber; 2. Heat exchange module; 21. Shell; 211. Shell body; 212. Cover; 213. Liquid inlet; 214. Liquid outlet; 22. Heat exchange assembly; 221. Heat exchange tube; 2211. Diverter tube; 222. Heat exchange fin; 223. Liquid inlet pipe; 224. Liquid outlet pipe; 225. Connecting plate; 226. Connecting rod; 3. Pipe assembly; 31. First connecting component; 311. Connecting pipeline; 312. Quick-connect plug; 32. Second connecting component; 33. Control valve; 41. First valve; 42. Second valve; 5. Liquid pump; 6. Generator; 7. Expansion tank. DETAILED DESCRIPTION

[0044] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0045] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0047] The present application provides a mobile cold storage device for storing and supplying cold energy.

[0048] The specific embodiments of the mobile cold storage device of the present application are described in detail below with reference to the accompanying drawings.

[0049] Figure 1 is a schematic diagram of the structure of the mobile cold storage device in this embodiment, Figure 2 Schematic diagram of the process structure of the mobile cold storage device in this embodiment.

[0050] refer to Figure 1 and Figure 2 In this embodiment, the mobile cold storage device includes a shell 1, a heat exchange module 2 and a pipeline assembly 3. The heat exchange module 2 is arranged in the shell 1, and the heat exchange module 2 includes a shell 21 and a heat exchange assembly 22 and a refrigerant arranged in the shell 21. The heat exchange assembly 22 has an inlet and an outlet, and the inlet and outlet of the heat exchange assembly 22 are both used to communicate with an external device for supplying a refrigerant, and the inside of the heat exchange assembly 22 is used to circulate the refrigerant. Among them, when the temperature of the refrigerant entering the heat exchange assembly 22 is lower than the eutectic point temperature of the refrigerant, the refrigerant inside the heat exchange assembly 22 can absorb the cold of the refrigerant and reduce the temperature to below the eutectic point and completely solidify to achieve cold charging; when the temperature of the refrigerant entering the heat exchange assembly 22 is higher than the eutectic point temperature of the refrigerant, the refrigerant can absorb the heat of the refrigerant and increase the temperature to above the eutectic point and completely melt to achieve cooling. The pipe assembly 3 can be accommodated in the housing 1, and includes a first connecting component 31 and a second connecting component 32. The first connecting component 31 is communicated with the inlet of each heat exchange component 22, and the first connecting component 31 is used to communicate with and detachably connect to an external device for supplying a coolant or a device to be charged with cold. The second connecting component 32 is communicated with the outlet of each heat exchange component 22, and the second connecting component 32 is used to communicate with and detachably connect to an external device for supplying a coolant or a device to be charged with cold.

[0051] In the present application, the inlet of the heat exchange component 22 of the heat exchange module 2 can be connected to the external device for supplying refrigerant or the device to be charged with cold by detachably connecting the first connecting component 31 with the external device for supplying refrigerant or the device to be charged with cold. Similarly, the outlet of the heat exchange component 22 of the heat exchange module 2 can be connected to the external device for supplying refrigerant or the device to be charged with cold by detachably connecting the second connecting component 32 with the external device for supplying refrigerant or the device to be charged with cold.

[0052] That is, through the above method, a loop can be formed between the inlet and outlet of the heat exchange component 22 of the heat exchange module 2 and the external device for supplying coolant for the flow of coolant. When the temperature of the coolant entering the heat exchange component 22 is lower than the eutectic temperature of the refrigerant, and the coolant circulates in the above loop, the coolant can continuously transfer the cold obtained by the coolant in the external device for supplying coolant to the heat exchange component 22 of the heat exchange module 2, so that the temperature of the refrigerant absorbing cold drops below the eutectic point and completely solidifies to achieve cold charging; or, through the above method, a loop can be formed between the inlet and outlet of the heat exchange component 22 of the heat exchange module 2 and the external device to be charged with cold, so that the coolant can flow. During the circulation of the coolant in the above loop, the coolant can continuously transfer the cold obtained by heat exchange between the coolant and the refrigerant to the external device to be charged with cold, so that the solidified refrigerant absorbs heat and the temperature rises to above the eutectic point and completely melts to achieve cooling.

[0053] In short, the mobile cold storage device in the present application can transmit the cold energy obtained and stored by heat exchange with the external equipment supplying the coolant to the equipment to be charged with cold energy, so as to realize the recovery and utilization of cold energy, and can transfer the mobile cold storage device to facilitate the off-site cooling of the equipment to be charged with cold energy, efficiently utilize LNG cold energy, and improve economic benefits.

[0054] In addition, the first connecting component 31 and the second connecting component 32 are both connected to the external equipment for supplying coolant or the equipment to be charged with coolant in a detachable manner, which facilitates quick connection or quick disconnection between the mobile cold storage device and the external equipment for supplying coolant or the equipment to be charged with coolant, and the operation is convenient and simple.

[0055] In addition, the pipe assembly 3 can be accommodated in the housing 1 when not in use, so that the pipe assembly 3 can be stored and protected.

[0056] Among them, the device for externally supplying the refrigerant mentioned above can be the cold extraction equipment in the LNG gasification station, that is, after the refrigerant absorbs the cold released during the gasification of LNG, it exchanges heat with the refrigerant in the heat exchange module 2 to cool and solidify the refrigerant, so that the heat exchange module 2 stores cold energy. The external equipment to be charged with cold mentioned above can be any structure that requires cold energy to maintain low temperature, such as a cold storage, a refrigerated truck, etc. That is, by using the mobile cold storage device in this embodiment as an intermediary, the cold energy in the LNG gasification station can be recycled and utilized, and the stored cold energy can be transferred by transferring the mobile cold storage device, so as to facilitate meeting the cooling needs of cold storage, refrigerated trucks, etc. that are located in different places from the LNG gasification station, so as to achieve the purpose of efficient use of LNG cold energy and improve economic benefits.

[0057] refer to Figure 1In this embodiment, the housing 1 is in a rectangular shape, which has three directions: length, width and height. For the convenience of description, it is now stipulated that the length direction of the housing 1 is the longitudinal direction, the width direction of the housing 1 is the transverse direction, and the height direction of the housing 1 is the vertical direction. For example, the housing 1 can be a container.

[0058] The shell 1 is hollow inside. In this embodiment, a partition 11 is provided inside the shell 1, the outer periphery of the partition 11 is fixed to the inner peripheral wall of the shell 1, and the partition 11 divides the inner space of the shell 1 into two independent accommodating chambers 12. Specifically, the partition 11 extends in the horizontal direction, and the two accommodating chambers 12 formed by the partition 11 dividing the inner space of the shell 1 are distributed in the longitudinal direction.

[0059] Exemplarily, the housing 1 includes a box body and a door. The box body has an opening communicating with the interior thereof, and the opening may be one, or two or more. When there is one opening, the opening is located at the partition 11 so that the opening is communicated with two accommodating chambers 12 at the same time. When there are two or more openings, each accommodating chamber 12 is communicated with at least one opening. This makes it convenient for the staff to enter the interior of the box body through the opening of the box body to inspect and clean the structure inside the box body.

[0060] The box door is arranged at the opening of the box body and is rotatably connected or detachably connected to the box body to open and close the opening of the box body. At least one box door is arranged at each opening.

[0061] In other embodiments, the housing 1 may also be formed by connecting two independent boxes.

[0062] refer to Figure 1 and Figure 2 The heat exchange module 2 is disposed in the housing 1. Specifically, the heat exchange module 2 is disposed in one of the accommodating chambers 12 of the housing 1.

[0063] The heat exchange module 2 includes a shell 21 and a heat exchange component 22 and a refrigerant disposed in the shell 21 .

[0064] The shell 21 is hollow inside and is used to store a cooling agent.

[0065] Among them, the coolant uses a solid-liquid phase change material, that is, the coolant absorbs or releases heat by changing its physical state, thereby storing and releasing cold. Specifically, when the coolant is below the phase change temperature, the coolant solidifies, and when the coolant temperature is higher than the phase change temperature, it melts. When the coolant undergoes a phase change, it needs to absorb or release a large amount of heat, thereby storing or releasing cold energy.

[0066] Specifically, the refrigerant uses an inorganic salt aqueous solution, which has a low solidification temperature, and the concentration of the inorganic salt can be adjusted to adjust the solidification point of the refrigerant, so that the refrigerant can remain in liquid state even in a low-temperature environment, so that cold can also be effectively transferred in a low-temperature environment. In addition, compared with organic refrigerants, inorganic salt refrigerants have higher stability and safety and are not prone to explosion. Inorganic salt refrigerants do not contain organic matter and have little environmental pollution. At the same time, inorganic salt refrigerants have a large specific heat and excellent thermal conductivity, and can quickly and effectively transfer heat, thereby improving the efficiency of cold storage.

[0067] Exemplarily, the coolant may be an aqueous solution of an inorganic salt such as magnesium chloride, sodium chloride, potassium chloride or calcium chloride.

[0068] In this embodiment, the shell 21 is in a rectangular parallelepiped shape and is arranged inside the shell 1 in a state where its length, width and height directions are consistent with those of the shell 1 .

[0069] The housing 21 is made of carbon steel, stainless steel or aluminum.

[0070] In this embodiment, the housing 21 includes a housing body 211 and a cover body 212. The housing body 211 is hollow inside and has an open top. The cover body 212 is detachably connected to the top of the housing body 211 to open and close the top opening of the housing body 211.

[0071] The shell 21 is provided with a liquid inlet 213 and a liquid outlet 214. Specifically, the cover 212 is provided with a liquid inlet 213, through which the refrigerant can be injected into the shell 21. The bottom of the shell body 211 is provided with a liquid outlet 214, through which the refrigerant in the shell 21 can be discharged outward.

[0072] In this embodiment, there may be a plurality of heat exchange components 22, and the plurality of heat exchange components 22 are arranged at intervals in the housing 21. Specifically, the plurality of heat exchange components 22 are arranged at intervals in the transverse direction.

[0073] In this embodiment, each heat exchange assembly 22 is detachably connected to the housing 21. Exemplarily, the heat exchange module 2 further includes a mounting frame, which is arranged inside the housing 21, and a plurality of mounting slots are arranged at intervals on the mounting frame, and each mounting slot is engaged with a heat exchange assembly 22. The mounting frame and the heat exchange assembly 22 can also be screwed together by fasteners to strengthen the connection strength between the heat exchange assembly 22 and the mounting frame, thereby improving the stability of the heat exchange assembly 22.

[0074] Figure 3 is a schematic diagram of the process structure of the heat exchange module 2 in this embodiment, Figure 4 is a schematic diagram of the structure of the heat exchange component 22 in this embodiment, Figure 5 It is a side view of the heat exchange assembly 22 in this embodiment.

[0075] refer to Figure 1 to Figure 5 Each heat exchange component 22 has an inlet and an outlet, and the inlet and outlet of each heat exchange component 22 are used to connect with an external device that supplies a coolant. The heat exchange component 22 is used to circulate the coolant and cool the coolant in the shell 21 to achieve the cooling of the heat exchange module 2. Alternatively, the inlet and outlet of each heat exchange component 22 are used to connect with a device to be charged with coolant. The heat exchange component 22 is used to circulate the coolant and heat the coolant in the shell 21 to achieve the cooling of the heat exchange module 2.

[0076] In this embodiment, each heat exchange assembly 22 includes a plurality of heat exchange tubes 221 and a plurality of heat exchange fins 222. The plurality of heat exchange fins 222 are arranged at intervals, and the plurality of heat exchange tubes 221 pass through the plurality of heat exchange fins 222 at intervals. Each heat exchange tube 221 has an inlet and an outlet, and the inlet and outlet of each heat exchange tube 221 are used to communicate with an external device for supplying a coolant or a device to be charged with cold. The heat exchange tube 221 is used to circulate the coolant and cool the refrigerant to achieve charging, or to heat the refrigerant to achieve cooling.

[0077] The heat exchange fins 222 can exchange heat with the heat exchange tubes 221 carrying the refrigerant, and a heat exchange surface is formed on the surface of the heat exchange fins 222 to exchange heat with the refrigerant. The heat exchange assembly 22 of this embodiment is formed by combining the heat exchange tubes and the heat exchange fins 222, which can increase the heat exchange area of ​​the heat exchange assembly 22 and improve the heat transfer efficiency, so that the power of charging and discharging the heat exchange module 2 is significantly improved, and the cooling efficiency and cooling time of the heat exchange module 2 are greatly improved. In addition, the above design also increases the heat exchange area of ​​the heat exchange assembly 22, and at the same time increases the contact area between the heat exchange assembly 22 and the refrigerant, thereby improving the heat exchange efficiency of the refrigerant and improving the cooling or discharging efficiency of the heat exchange module 2.

[0078] Each heat exchange fin 222 is provided with a perforation, and the perforations on the plurality of heat exchange fins 222 are interconnected for allowing the heat exchange tube 221 to pass through. The shape and size of the perforation are adapted to the shape and size of the cross section of the heat exchange tube 221 .

[0079] It should be noted that, in the present embodiment, there is no fixed connection between each heat exchange fin 222 and the heat exchange tube 221, that is, according to actual needs, external force can be applied to the heat exchange fin 222 to move the heat exchange fin 222 along the heat exchange tube 221, thereby adjusting the distance between two adjacent heat exchange fins 222, thereby adjusting the volume of the heat exchange space enclosed between two adjacent heat exchange surfaces, and changing the thermal resistance of the heat exchange component 22, thereby achieving the adjustment of the cold storage efficiency of the heat exchange module 2.

[0080] In this embodiment, the heat exchange fins 222 are made of aluminum.

[0081] In this embodiment, a plurality of heat exchange tubes 221 are distributed at intervals in the vertical direction. The inlet and outlet of each heat exchange tube 221 are arranged on opposite sides of the whole body formed by the plurality of heat exchange fins 222, that is, each heat exchange tube 221 runs through the whole body formed by the plurality of heat exchange fins 222, so that the heat exchange tube 221 carrying the coolant can exchange heat with each heat exchange fin 222.

[0082] Specifically, each heat exchange tube 221 includes a plurality of shunt tubes 2211, and the plurality of shunt tubes 2211 are spaced apart in the transverse direction and pass through a plurality of heat exchange fins 222. That is, in this embodiment, all the shunt tubes 2211 of each heat exchange assembly 22 are distributed in an array, and in the process of heat exchange between the plurality of shunt tubes 2211 carrying the refrigerant and the plurality of heat exchange fins 222 at the same time, the above design can make the surface of the heat exchange fins 222 quickly and evenly cooled or heated to form a heat exchange surface, so as to improve the heat exchange efficiency of the heat exchange assembly 22, and improve the heat exchange efficiency of the refrigerant, thereby improving the cooling efficiency of the heat exchange module 2.

[0083] Each of the branch pipes 2211 has an inlet and an outlet, and the inlet and the outlet of each of the branch pipes 2211 are arranged on opposite sides of the whole formed by the plurality of heat exchange fins 222 .

[0084] In this embodiment, the heat exchange assembly 22 includes a liquid inlet pipe 223, which is connected to the inlet of each heat exchange tube 221. The heat exchange assembly 22 includes a liquid outlet pipe 224, which is connected to the outlet of each heat exchange tube 221. Specifically, the liquid inlet pipe 223 is connected to the inlet of multiple branch pipes 2211 of each heat exchange tube 221, and the liquid outlet pipe 224 is connected to the outlet of multiple branch pipes 2211 of each heat exchange tube 221.

[0085] That is, in this embodiment, a liquid inlet pipe 223 is used to transport the coolant to multiple heat exchange tubes 221, and the coolant is transported by multiple shunt pipes 2211 of each heat exchange tube 221, so that the outer surfaces of the multiple shunt pipes 2211 have a higher or lower temperature at the same time, so as to simultaneously exchange heat with multiple heat exchange fins 222, so that the surface of the heat exchange fins 222 can be quickly and evenly cooled or heated to form a heat exchange surface, so as to improve the heat exchange efficiency of the heat exchange component 22, and improve the heat exchange efficiency of the coolant, thereby improving the charging and cooling efficiency of the heat exchange module 2. Similarly, the outlets of the multiple shunt pipes 2211 are transported by a liquid outlet pipe 224 to realize the centralized reflux of the coolant. In addition, the above design can also reduce the layout of the pipeline and simplify the structure of the heat exchange component 22.

[0086] It should be noted that the number of branch pipes 2211 is set according to the diameter of the liquid inlet pipe 223. Specifically, the branch pipes 2211 are arranged according to the flow rate of the refrigerant transported by the liquid inlet pipe 223 per unit time, ensuring that the refrigerant flows in a turbulent form in each branch pipe 2211 so that the flow rate of the refrigerant is high, thereby avoiding the loss of heat or cold of the refrigerant, thereby improving the utilization rate of the heat energy or cold energy of the refrigerant.

[0087] Specifically, the liquid inlet pipes 223 extend vertically and are located in the middle of the heat exchange fins 222 in the horizontal direction so as to communicate with the multiple branch pipes 2211 of each heat exchange tube 221. The arrangement and structure of the liquid outlet pipes 224 are consistent with those of the liquid inlet pipes 223.

[0088] Each liquid inlet pipe 223 is provided with a first valve 41, and the first valve 41 is used to control the opening and closing of the liquid inlet pipe 223. Each liquid outlet pipe 224 is provided with a first valve 41, and a second valve 42 is used to control the opening and closing of each liquid outlet pipe 224.

[0089] In this embodiment, each heat exchange assembly 22 includes a plurality of connecting plates 225 and a plurality of connecting rods 226. The plurality of connecting plates 225 are arranged at intervals, and the upper and lower ends of two adjacent connecting plates 225 are respectively connected and fixed by at least one connecting rod 226 to form a frame as a whole. A plurality of heat exchange fins 222 are arranged at intervals between two adjacent connecting plates 225, and each heat exchange tube 221 passes through the plurality of connecting plates 225 and the plurality of heat exchange fins 222. At this time, the frame as a whole formed by the connection of at least two connecting plates 225 and the plurality of connecting rods 226 can play a load-bearing supporting role for the heat exchange tube 221, so as to reduce the pressure of the heat exchange tube 221 on the heat exchange fin 222, so as to ensure the stability and durability of the heat exchange fin 222.

[0090] At this time, each connecting plate 225 is used to engage with the mounting groove on the mounting frame and is detachably connected through fasteners.

[0091] That is, in this embodiment, the number of heat exchange components 22, the spacing between two adjacent heat exchange fins 222 of the heat exchange component 22, the number of heat exchange tubes 221 and the number of diverter tubes 2211 can all be adjusted as needed, with high flexibility and versatility.

[0092] refer to Figure 1 and Figure 2 In this embodiment, the pipeline assembly 3 can be accommodated in the housing 1. Specifically, the pipeline assembly 3 is accommodated in one of the accommodating chambers 12, and the heat exchange module 2 is accommodated in the other accommodating chamber 12.

[0093] The pipeline assembly 3 includes a first connecting component 31 and a second connecting component 32. The first connecting component 31 is connected to the inlet of each heat exchange assembly 22, and the first connecting component 31 is used to communicate with an external device for supplying a coolant or a device to be filled with cold. The second connecting component 32 is connected to the outlet of each heat exchange assembly 22, and the second connecting component 32 is used to communicate with an external device for supplying a coolant or a device to be filled with cold. At this time, multiple heat exchange assemblies 22 are connected in parallel between the first connecting component 31 and the second connecting component 32.

[0094] In this embodiment, the first connecting component 31 includes a connecting pipe 311, which is used to connect the inlet of each heat exchange component 22 to connect multiple liquid inlet pipes 223, that is, a connecting pipe 311 is used to transport the coolant to multiple liquid inlet pipes 223 to achieve split flow transportation to the inside of each heat exchange component 22. Specifically, each liquid inlet pipe 223 passes through the shell 21 and the partition 11 and extends to the accommodating cavity 12 where the first connecting component 31 is located and is respectively connected to the connecting pipe 311.

[0095] The connecting pipeline 311 is provided with a control valve 33 for controlling the connection and disconnection of the connecting pipeline 311 .

[0096] The first connecting component 31 is used to be detachably connected to an external device that supplies a coolant or a device to be charged with cold. Specifically, the first connecting component 31 includes a quick-connect plug 312, which is connected to the connecting pipe 311. The quick-connect plug 312 is used to plug and match with an external device that supplies a coolant or a device to be charged with cold, so as to realize quick connection or quick disconnection between the connecting pipe 311 and the device that supplies a coolant or the device to be charged with cold, and the operation is convenient and simple.

[0097] The structure of the second connecting component 32 is the same as that of the first connecting component 31. It should be particularly noted that the connecting pipeline 311 of the second connecting component 32 passes through the partition 11 and extends to the outlet end of each heat exchange component 22. At this time, each liquid outlet pipe 224 passes upward out of the shell 21 and is respectively connected to the connecting pipeline 311 of the second connecting component 32.

[0098] In this embodiment, the number of the first connecting components 31 may be one or two or more. The number of the second connecting components 32 may be one or two or more.

[0099] When there are two or more first connecting parts 31 and second connecting parts 32, the first connecting parts 31 and the second connecting parts 32 are arranged one by one. At this time, multiple first connecting parts 31 are connected in parallel and communicated with each liquid inlet pipe 223 through a delivery pipeline, and multiple second connecting parts 32 are connected in parallel and communicated with each liquid outlet pipe 224 through an output pipeline. Each first connecting part 31 and a corresponding second connecting part 32 can be connected to an external device for supplying refrigerant or a device to be charged with cold to form a loop, so that the mobile cold storage device can be connected to multiple external devices for supplying refrigerant at the same time to improve the cold storage efficiency of the heat exchange module 2, or, at the same time, it is connected to multiple devices to be charged with cold, and can charge cold for multiple devices to be charged with cold at the same time.

[0100] It should be noted that when there are two or more first connecting components 31 and second connecting components 32, a control valve 33 is provided on the connecting pipeline 311 of each first connecting component 31 and second connecting component 32. In actual application, the same number of first connecting components 31 and second connecting components 32 are selected according to the number of external refrigerant supply equipment or equipment to be charged with cold, and their control valves 33 are in the on state, while the control valves 33 of the first connecting components 31 and second connecting components 32 that are not selected for use are in the closed state.

[0101] The mobile cold storage device further comprises a liquid pump 5, which is arranged in the housing 1. Specifically, the liquid pump 5 and the pipeline assembly 3 are located in the same accommodating chamber 12.

[0102] The inlet of the liquid pump 5 is used to communicate with an external device that supplies coolant or a device to be charged with cold, and the outlet of the liquid pump 5 is connected to the inlet of each heat exchange component 22. The liquid pump 5 is used to pump the coolant.

[0103] The number of the liquid pump 5 may be one or two or more. When there are two or more liquid pumps 5, the two or more liquid pumps 5 are connected in parallel to the connecting pipeline 311 of the first connecting component 31.

[0104] refer to Figure 1 The mobile cold storage device further includes a generator 6, which is arranged inside the housing 1 and electrically connected to the liquid pump 5, and is used to supply power to the liquid pump 5. Specifically, the generator 6 and the liquid pump 5 are located in the same accommodating chamber 12.

[0105] The mobile cold storage device further includes an expansion tank 7 arranged inside the housing 1. Specifically, the expansion tank 7 and the liquid pump 5 are located in the same accommodating chamber 12.

[0106] The expansion tank 7 is hollow inside and has an expansion groove, and the expansion tank 7 is connected between the first connecting component 31 and the inlet of the liquid pump 5. The inner diameter of the expansion groove is larger than the diameter of the connecting pipeline 311 and the inlet diameter of the liquid pump 5, and the expansion tank 7 is arranged above the liquid pump 5.

[0107] In actual application, the coolant will be transported to the inside of the expansion tank 7 by the connecting pipe 311. Since the expansion tank 7 has a large space inside, the expansion tank 7 can play a role of buffering and temporarily storing the coolant. The coolant pumped by the liquid pump 5 is the part temporarily stored after being buffered by the expansion tank 7. This can improve the stability of the operation of the liquid pump 5, so that the liquid pump 5 can continuously pump the coolant to ensure the normal supply of the coolant to the heat exchange module 2. In addition, when the coolant temperature rises and carries heat, it may be vaporized, which may cause the internal pressure of the pipeline assembly 3 and the heat exchange assembly 22 to increase. At this time, the space inside the expansion tank 7 can also provide a vaporization space to accommodate the vaporized coolant to play a role in stabilizing the pressure.

[0108] In this embodiment, the surface of the heat exchange component 22 in contact with the refrigerant, the inner surface of the shell 21 and the surface of the mounting frame are all provided with a protective layer, and the protective layer is used to isolate the heat exchange component 22, the shell 21 from the refrigerant, to prevent the heat exchange component 22 and the shell 21 from direct contact with the refrigerant and causing corrosion damage, thereby improving the service life of the heat exchange component 22, the shell 21 and the mounting frame.

[0109] Specifically, the protective layer is formed by directly performing electrophoresis on the mounting frame, the shell 21 and the heat exchange component 22 .

[0110] The outer surface of the shell 1 is provided with a heat insulation layer, which is used for heat preservation and heat insulation of the heat exchange module 2 to improve the heat preservation property of the heat exchange module 2, reduce the cold loss of the coolant, and improve the energy utilization rate.

[0111] In this embodiment, the heat insulation layer is made of a high thermal resistance material. For example, the heat insulation layer is an aerogel layer. Compared with the traditional polyurethane insulation, the use of the aerogel layer as the heat insulation layer of the heat exchange module 2 has a better heat insulation effect and can better reduce the loss of cold energy stored in the refrigerant.

[0112] The present application also provides a cold storage vehicle, including a vehicle body and a mobile cold storage device as described above. The mobile cold storage device is arranged on the vehicle body, and the vehicle body can realize the mobile transportation of the mobile cold storage device, so that the cold energy released when LNG is gasified in the LNG gasification station at a fixed position can be stored and transported to other cold-charging equipment that needs cold energy to maintain low temperature, and then the cold-charging equipment is charged with cold energy to realize the recycling of cold energy and the remote cold supply of the cold-charging equipment, so as to achieve efficient use of LNG cold energy and improve economic benefits.

[0113] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A mobile cold storage device, characterized in that: include: shell; A heat exchange module is arranged in the shell, and the heat exchange module includes a shell and a heat exchange component and a refrigerant arranged in the shell. The heat exchange component has an inlet and an outlet, and the inlet and outlet of the heat exchange component are both used to communicate with an external cooling device or a device to be charged with cold. The interior of the heat exchange component is used for the circulation of a refrigerant; wherein, when the temperature of the refrigerant entering the heat exchange component is lower than the eutectic temperature of the refrigerant, the refrigerant inside the heat exchange component can absorb the cold of the refrigerant and reduce the temperature to below the eutectic point and completely solidify to achieve cold charging; when the temperature of the refrigerant entering the heat exchange component is higher than the eutectic temperature of the refrigerant, the refrigerant can absorb the heat of the refrigerant and increase the temperature to above the eutectic point and completely melt to achieve cooling; A piping assembly capable of being accommodated in the shell; the piping assembly comprises a first connecting component and a second connecting component, the first connecting component being communicated with the inlet of the heat exchange assembly, and the first connecting component being used for communicating with and detachably connecting to an external cooling device or a device to be charged with cooling; the second connecting component being communicated with the outlet of the heat exchange assembly, and the second connecting component being used for communicating with and detachably connecting to an external cooling device or a device to be charged with cooling.

2. The mobile cold storage device according to claim 1, characterized in that: There are multiple first connecting components, and the multiple first connecting components are connected in parallel; and / or, There are multiple second connecting components, and the multiple second connecting components are connected in parallel.

3. The mobile cold storage device according to claim 1, characterized in that: The first connecting component includes a connecting pipe and a quick-connect plug, wherein the connecting pipe is used to connect the inlet of the heat exchange component with the quick-connect plug, and the quick-connect plug is used to be plugged and matched with an external cooling device or a device to be charged with cooling; The second connecting component has the same structure as the first connecting component.

4. The mobile cold storage device according to claim 1, characterized in that: The heat exchange assembly includes a plurality of heat exchange tubes and a plurality of heat exchange fins, the plurality of heat exchange fins are arranged at intervals, and the plurality of heat exchange tubes pass through the plurality of heat exchange fins at intervals; each of the heat exchange tubes has an inlet and an outlet, the inlet of each of the heat exchange tubes is connected to the first connecting component, and the outlet of each of the heat exchange tubes is connected to the second connecting component; the surface of the heat exchange fins forms a heat exchange surface, and the heat exchange fins are used to increase the heat exchange area.

5. The mobile cold storage device according to claim 4, characterized in that: The inlet and outlet of each heat exchange tube are arranged on opposite sides of the whole body formed by the plurality of heat exchange fins; The heat exchange assembly includes a liquid inlet pipe, the liquid inlet pipe is connected to the inlet of each heat exchange pipe, and the liquid inlet pipes of the plurality of heat exchange assemblies are connected to the first connecting component through a liquid inlet main pipe; The heat exchange assembly includes a liquid outlet pipe, which is connected to the outlet of each heat exchange pipe. The liquid outlet pipes of the plurality of heat exchange assemblies are connected to the second connecting component through a liquid outlet main pipe.

6. The mobile cold storage device according to claim 4, characterized in that: The heat exchange assembly includes a plurality of connecting plates and a plurality of connecting rods, the plurality of connecting plates are arranged at intervals, a plurality of heat exchange fins are arranged at intervals between two adjacent connecting plates, and the upper and lower ends of two adjacent connecting plates are respectively connected and fixed by at least one connecting rod; each of the heat exchange tubes passes through the plurality of connecting plates and the plurality of heat exchange fins.

7. The mobile cold storage device according to claim 1, characterized in that: There are multiple heat exchange components, and the multiple heat exchange components are connected in parallel between the first connecting component and the second connecting component.

8. The mobile cold storage device according to claim 1, characterized in that: The refrigerant is a solid-liquid phase change material; The coolant is an inorganic salt aqueous solution.

9. The mobile cold storage device according to claim 1, characterized in that: The surface of the heat exchange component in contact with the refrigerant and the inner surface of the shell are both provided with a protective layer, and the protective layer is used to isolate the heat exchange component, the shell and the refrigerant; and / or, The outer surface of the shell is provided with a heat insulation layer, and the heat insulation layer is used for heat preservation and heat insulation of the heat exchange module.

10. The mobile cold storage device according to claim 9, characterized in that: The heat insulation layer is made of heat-resistant material; The heat insulation layer is an aerogel layer.

11. The mobile cold storage device according to claim 1, characterized in that: A partition is provided in the shell, the outer periphery of the partition is fixed to the inner wall of the shell, and the partition divides the inside of the shell into two independent accommodating chambers, one of which is used to accommodate the heat exchange module, and the other is used to accommodate the pipeline assembly.

12. The mobile cold storage device according to claim 1, characterized in that: The mobile cold storage device further includes a liquid pump, which is arranged in the housing, an inlet of the liquid pump is connected to the first connecting component, and an outlet of the liquid pump is connected to an inlet of each of the heat exchange components, and the liquid pump is used to pump the coolant; The mobile cold storage device also includes a generator, which is arranged inside the shell and electrically connected to the liquid pump, and is used to supply power to the liquid pump.

13. The mobile cold storage device according to claim 12, characterized in that: The mobile cold storage device further includes an expansion tank arranged inside the shell, the expansion tank is hollow inside and has an expansion groove formed therein, and the expansion tank is connected between the first connecting component and the inlet of the liquid pump.

14. A cold storage vehicle, characterized in that: The invention comprises a vehicle body and a mobile cold storage device according to any one of claims 1 to 13, wherein the mobile cold storage device is arranged on the vehicle body.

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