Low-temperature treatment system and method

Abstract

The present invention relates to the technical field of cryogenic treatment, and provides a cryogenic treatment system and method. The cryogenic treatment system includes a housing in which an object to be cooled is placed. Cold storage materials are provided on the opposite first side and second side of the object to be cooled, and a gap is formed between the opposite third side and fourth side of the object to be cooled and the inner wall of the housing; a heat exchanger is disposed in the housing and connected to a refrigerator located outside the housing, and the heat exchanger is located on the third side of the object to be cooled; a fan is disposed in the housing and between the heat exchanger and the inner wall of the housing. When the refrigerator prepares cold, the cold can be stored in the cold storage materials and the cooling of the object to be cooled can also be achieved. When the peak electricity price period occurs, the refrigerator is turned off, and the cold stored in the cold storage materials is used to cool the object to be cooled. Thus, the use requirements of storing cold during off-peak electricity hours and using cold during peak electricity hours are realized, and the energy consumption of the cryogenic treatment system is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cryogenic treatment, and particularly to a cryogenic treatment system and method. Background Art

[0002] Currently, cryogenic treatment technologies (such as cold treatment of metal materials, low-temperature quick-freezing of food, etc.) usually use refrigerators to perform cryogenic treatment on materials to improve the properties of the materials (such as wear resistance and dimensional stability of metal materials, storage time of food). During the cryogenic treatment process, the working gas is usually discharged to the environment at a temperature not higher than the material treatment temperature, resulting in a large amount of cold loss.

[0003] To address the above problem of cold loss, the prior art usually uses phase change materials to recover the cold provided by the refrigerator. During the operation of the refrigerator, the power is usually adjusted according to needs or the refrigerator is turned on and off, which increases the refrigeration cost. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides a cryogenic treatment system that can store cold in a timely manner and make full use of the cold during the peak electricity price period.

[0005] The present invention provides a cryogenic treatment system, including:

[0006] A housing, in which an object to be cooled is placed. Cold storage materials are provided on the opposite first side and second side of the object to be cooled, and a gap is formed between the opposite third side and fourth side of the object to be cooled and the inner wall of the housing;

[0007] A heat exchanger, which is arranged in the housing and connected to a refrigerator located outside the housing, and the heat exchanger is located on the third side of the object to be cooled;

[0008] A fan, which is arranged in the housing and located between the heat exchanger and the inner wall of the housing.

[0009] The cryogenic treatment system according to the embodiment of the present invention aims at the problems that the existing cryogenic treatment devices cannot fully recover the cold energy, and the operation is difficult and the cost is high during the cold energy recovery process, and provides a cryogenic treatment system with recyclable cold energy. By arranging the object to be cooled and the cold storage material in the shell, and arranging a heat exchanger and a fan at the position corresponding to the object to be cooled in the shell, when the refrigerator prepares cold energy, the heat exchanger fully exchanges the cold energy of the refrigerator with the cooling medium. As the fan rotates and blows air, the cold energy can be stored in the cold storage material in the shell, and at the same time, the object to be cooled can be cooled and the temperature can be reduced. When the peak electricity price period arrives, only need to turn off the refrigerator, and the cold energy stored in the cold storage material can be used to cool the object to be cooled. Thus, the use requirements of storing cold energy during valley electricity and using cold energy during peak electricity are realized, ensuring that the object to be cooled can be in a cooled state in real time, greatly reducing the consumption of cold energy, and at the same time reducing the energy consumption of the cryogenic treatment system.

[0010] According to an embodiment of the present invention, in the vertical direction, the fan and the heat exchanger are in the same horizontal plane; in the horizontal direction, the axis of the fan coincides with the center line of the heat exchanger.

[0011] According to an embodiment of the present invention, it further includes:

[0012] A driving member, the driving member is arranged outside the shell, and the driving member is connected to the fan through a transmission shaft.

[0013] According to an embodiment of the present invention, a partition is arranged between the object to be cooled and the cold storage material.

[0014] According to an embodiment of the present invention, an inlet valve is arranged on the liquid inlet pipeline connecting the refrigerator and the heat exchanger, and an outlet valve is arranged on the liquid outlet pipeline connecting the refrigerator and the heat exchanger.

[0015] According to an embodiment of the present invention, the shell includes an outer shell and an inner shell, and heat insulation material is filled between the outer shell and the inner shell.

[0016] According to an embodiment of the present invention, it further includes:

[0017] An exhaust pipe, the first end of the exhaust pipe is connected to the inner shell, and the second end of the exhaust pipe is connected to the outer shell to communicate the inside of the shell with the outside of the shell.

[0018] According to an embodiment of the present invention, there are at least two exhaust pipes, and they are respectively arranged on the shells corresponding to the first side and the second side opposite to the object to be cooled.

[0019] According to an embodiment of the present invention, a control valve is connected to the exhaust pipe to control the on-off of the exhaust pipe.

[0020] An embodiment of the present invention also provides a low-temperature treatment method using the low-temperature treatment system as described above, including:

[0021] During the valley electricity period, turn on the refrigerator and the blower so that the cooling capacity enters the cold storage material and forms a first cycle;

[0022] During the peak electricity period, turn off the refrigerator and keep the blower on so that the cooling capacity stored in the cold storage material enters the object to be cooled and forms a second cycle.

[0023] One or more of the above technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0024] The low-temperature treatment system of the embodiment of the present invention provides a low-temperature treatment system with recyclable cooling capacity for the problems that the existing low-temperature treatment device cannot fully recover the cooling capacity, and the operation is difficult and costly during the cooling capacity recovery process. By arranging the object to be cooled and the cold storage material in the housing, and arranging a heat exchanger and a blower at the position corresponding to the object to be cooled in the housing, when the refrigerator prepares the cooling capacity, the heat exchanger fully exchanges the cooling capacity of the refrigerator with the cooling medium. As the blower rotates and sends air, the cooling capacity can be stored in the cold storage material in the housing, and at the same time, the object to be cooled can be cooled and the temperature can be lowered. When it is in the peak electricity price period, only need to turn off the refrigerator, and the cooling capacity stored in the cold storage material can be used to cool the object to be cooled. Thus, the use requirements of storing cold in valley electricity and using cold in peak electricity are realized, ensuring that the object to be cooled can be in the cooled state in real time, greatly reducing the consumption of the cooling capacity, and at the same time reducing the energy consumption of the low-temperature treatment system. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the low-temperature treatment system provided by the embodiment of the present invention.

[0026] Explanation of the reference numerals in the drawings:

[0027] 100, object to be cooled; 102, cold storage material; 104, heat exchanger; 106, blower; 108, driving member; 110, partition; 112, inlet valve; 114, outlet valve; 116, outer shell; 118, inner shell; 120, exhaust pipe; 122, refrigerator; 124, heat insulation material. Detailed Embodiments

[0028] To make the objectives, technical solutions, and advantages of the invention clearer, the following will clearly describe the technical solutions in the invention in conjunction with the accompanying drawings of the invention. Obviously, the described embodiments are some, but not all, of the embodiments of the invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the invention without creative efforts fall within the scope of protection of the invention.

[0029] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0030] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0031] In the embodiments of the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0032] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0033] As Figure 1 shown, the present invention provides a cryogenic treatment system, including:

[0034] A housing, in which an object to be cooled 100 is placed. Cold storage materials 102 are provided on the opposite first side and second side of the object to be cooled 100, and a gap is formed between the opposite third side and fourth side of the object to be cooled 100 and the inner wall of the housing;

[0035] A heat exchanger 104, which is arranged in the housing and connected to a refrigerator 122 located outside the housing, and the heat exchanger 104 is located on the third side of the object to be cooled 100;

[0036] A fan 106, which is arranged in the housing and located between the heat exchanger 104 and the inner wall of the housing.

[0037] For the problems of the existing cryogenic treatment devices that cannot fully recover the cold quantity, and the high operation difficulty and cost in the cold quantity recovery process, the cryogenic treatment system of the embodiments of the present invention provides a cryogenic treatment system with recyclable cold quantity. By arranging the object to be cooled 100 and the cold storage materials 102 in the housing, and arranging the heat exchanger 104 and the fan 106 at the positions corresponding to the object to be cooled 100 in the housing, when the refrigerator 122 prepares cold quantity, the heat exchanger 104 fully exchanges the cold quantity of the refrigerator 122 with the cooling medium. With the rotation of the fan 106 to send air, the cold quantity can be stored in the cold storage materials 102 in the housing, and at the same time, the cooling and temperature reduction of the object to be cooled 100 can be realized. When it is the peak electricity price period, only need to turn off the refrigerator 122, and the cold quantity stored in the cold storage materials 102 can be used to cool the object to be cooled 100. Thus, the usage requirements of storing cold in off-peak electricity and using cold in peak electricity are realized, ensuring that the object to be cooled 100 can be in a cooled state in real time, greatly reducing the consumption of cold quantity, and at the same time reducing the energy consumption of this cryogenic treatment system.

[0038] Specifically, in the embodiments of the present invention, the housing is generally rectangular, and an object to be cooled 100 is placed in the housing, such as Figure 1As shown, the object to be cooled 100 can be placed at the middle position of the housing, that is, the object to be cooled 100 does not contact the periphery of the inner wall of the housing, that is, a certain gap is reserved between the object to be cooled 100 and the inner wall of the housing.

[0039] Cool storage materials 102 are arranged on the first side and the second side of the object to be cooled 100, wherein the first side and the second side of the object to be cooled 100 refer to the opposite two sides of the object to be cooled 100. It can be understood that the cool storage materials 102 are arranged in the gaps between the first side and the second side of the object to be cooled 100 and the inner wall of the housing, so that the cool storage materials 102 can recover and store the cooling capacity.

[0040] A heat exchanger 104 is also arranged in the housing, and a refrigerator 122 is arranged outside the housing. The refrigerator 122 is connected to the heat exchanger 104 through a pipeline. In this way, when the refrigerator 122 prepares the cooling capacity, it can fully exchange heat with the cooling medium in the heat exchanger 104, and then the temperature of the heat exchanger 104 is reduced. It can be understood that the heat exchanger 104 is arranged in the gap between the third side of the object to be cooled 100 and the inner wall of the housing.

[0041] A fan 106 is also arranged between the heat exchanger 104 and the inner wall of the housing. In this way, when the fan 106 rotates, the air on one side of the heat exchanger 104 can flow through the heat exchanger 104 so that this part of the air exchanges heat with the heat exchanger 104 and the temperature is reduced. This part of the air continues to flow, and after the cooling capacity is recovered and stored by the cool storage materials 102, it enters the object to be cooled 100 and exchanges heat with the object to be cooled 100 to reduce the temperature of the object to be cooled 100, and then flows through the heat exchanger 104 and realizes circulation.

[0042] According to an embodiment of the present invention, in the vertical direction, the fan 106 and the heat exchanger 104 are on the same horizontal plane; in the horizontal direction, the axis of the fan 106 coincides with the center line of the heat exchanger 104. By arranging the fan 106 and the heat exchanger 104 in the above setting manner, it is beneficial for the cooling capacity to evenly enter the housing along with the flow of the air current.

[0043] According to an embodiment of the present invention, the low-temperature treatment system further includes a driving member 108. The driving member 108 is arranged outside the housing, and the driving member 108 is connected to the fan 106 through a transmission shaft.

[0044] Wherein, the driving member 108 can be a motor. The motor is connected to the fan 106 through a transmission shaft to drive the fan 106 to rotate. In addition, the fan 106 can also adjust different rotation speeds.

[0045] According to an embodiment of the present invention, a partition 110 is arranged between the object to be cooled 100 and the cool storage materials 102.

[0046] As Figure 1 shown, a partition 110 is provided between the object to be cooled 100 and the cold storage material 102 to prevent the direct contact between the object to be cooled 100 and the cold storage material 102, ensuring the cleanliness of the object to be cooled 100. In addition, it should be noted that in order to ensure that the air flow inside the housing can flow into the cold storage material 102, the partition 110 is not connected to the inner wall of the housing, that is, a gap is provided between the partition 110 and the inner wall of the housing to ensure that the wind can enter the cold storage material 102 through this gap.

[0047] According to an embodiment of the present invention, a liquid inlet valve 112 is provided on the liquid inlet pipeline connecting the refrigerator 122 and the heat exchanger 104, and a liquid outlet valve 114 is provided on the liquid outlet pipeline connecting the refrigerator 122 and the heat exchanger 104.

[0048] By providing a liquid inlet valve 112 on the liquid inlet pipeline connecting the refrigerator 122 and the heat exchanger 104 and a liquid outlet valve 114 on the liquid outlet pipeline connecting the refrigerator 122 and the heat exchanger 104, the time and flow rate of the cooling medium during input and output can be controlled.

[0049] According to an embodiment of the present invention, the housing includes an outer shell 116 and an inner shell 118, and a heat insulating material 124 is filled between the outer shell 116 and the inner shell 118. By filling the heat insulating material 124 between the outer shell 116 and the inner shell 118, the heat exchange between the cold inside the housing and the external environment can be effectively reduced, ensuring that the cold inside the housing can be fully utilized.

[0050] According to an embodiment of the present invention, the low-temperature treatment system further includes an exhaust pipe 120. The first end of the exhaust pipe 120 is connected to the inner shell 118, and the second end of the exhaust pipe 120 is connected to the outer shell 116 to communicate the inside of the housing with the outside of the housing.

[0051] By providing the exhaust pipe 120 on the housing, when the temperature inside the housing rises during rewarming, causing the pressure to increase, the gas inside the housing is discharged through the exhaust pipe 120 to control the pressure. In addition, in order to prevent the leakage of cold, the outer wall of the exhaust pipe 120 can also be coated with the heat insulating material 124.

[0052] According to an embodiment of the present invention, there are at least two exhaust pipes 120, which are respectively arranged on the housing corresponding to the first side and the second side opposite to the object to be cooled 100.

[0053] As Figure 1 shown, in the embodiment of the present invention, there are two exhaust pipes 120, and the two exhaust pipes 120 are respectively arranged on the front and rear sides of the housing. When the temperature inside the housing rises during rewarming, causing the pressure to increase, the pressure inside the housing can be quickly discharged, ensuring the constancy of the pressure inside the housing.

[0054] According to an embodiment of the present invention, a control valve is connected to the exhaust pipe 120 to control the on-off of the exhaust pipe 120.

[0055] By providing a control valve on the exhaust pipe 120, it is possible to conduct the exhaust pipe 120 to adjust the pressure inside the adjustment housing when exhaust is required; when refrigeration is required, the exhaust pipe 120 is closed to prevent the leakage of cold.

[0056] The embodiment of the present invention also provides a cryogenic treatment method using the cryogenic treatment system as described above, including:

[0057] During the valley electricity period, the refrigerator 122 and the fan 106 are turned on so that cold enters the cold storage material 102 and the object to be cooled 100 to form a first cycle;

[0058] During the peak electricity period, the refrigerator 122 is turned off and the fan 106 is kept on so that the cold stored in the cold storage material 102 enters the object to be cooled 100 to form a second cycle.

[0059] Specifically, the cryogenic treatment method is roughly divided into two stages.

[0060] The first stage is the cooling stage of the refrigerator 122. This stage is carried out during the low electricity consumption period. At this time, the refrigerator 122 system is turned on, the refrigerant in the heat exchanger 104 is at a low temperature, the fan 106 draws air, and the air flow exchanges heat through the heat exchanger 104 under the action of pressure to reduce the temperature. Then, it enters the cold storage materials 102 on the front and back sides inside the housing through the gap between the partition 110 and the housing, and then flows into the object to be cooled 100 through the gap between the partition 110 and the housing. After flowing out of the object to be cooled 100 and warming up, it exchanges heat with the heat exchanger 104 again to form a first cycle. During the cycle, both the cold storage material 102 and the object to be cooled 100 are cooled accordingly.

[0061] The second stage is the cooling stage of the cold storage material 102. When it is during the high electricity consumption period, the refrigerator 122, the liquid inlet valve 112, and the liquid outlet valve 114 are closed, and at the same time, the fan 106 is kept on. The air flow enters the cooled cold storage materials 102 on the front and back sides inside the housing through the gap between the partition 110 and the housing under the action of pressure and is cooled down. Then, it flows into the object to be cooled 100 through the gap between the partition 110 and the housing to cool the object to be cooled 100, and then enters the cold storage material 102 again to form a second cycle. During the second cycle, the cooled cold storage material 102 provides corresponding cold to the object to be cooled 100.

[0062] When it comes to the low electricity consumption period, the cooling of the first stage is carried out again, and the two stages alternate in a cycle, thereby reducing the electricity cost and reducing the waste of cold.

[0063] One or more of the above technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0064] The low-temperature treatment system in the embodiments of the present invention provides a low-temperature treatment system with recyclable cold energy for the problems that the existing low-temperature treatment devices cannot fully recover cold energy, and the operation is difficult and costly during the cold energy recovery process. By arranging a cooled object 100 and a cold storage material 102 in the shell, and arranging a heat exchanger 104 and a fan 106 at a position corresponding to the cooled object 100 in the shell, when the refrigerator 122 prepares cold energy, the heat exchanger 104 fully exchanges the cold energy of the refrigerator 122 with the cooling medium. As the fan 106 rotates and sends air, the cold energy can be stored in the cold storage material 102 in the shell, and at the same time, the cooled object 100 can be cooled down. When the peak electricity price period arrives, only by turning off the refrigerator 122, the cold energy stored in the cold storage material 102 can be used to cool the cooled object 100. Furthermore, the usage requirements of storing cold energy during valley electricity and using cold energy during peak electricity are realized, ensuring that the cooled object 100 can be in a cooled state in real time, greatly reducing the consumption of cold energy, and at the same time reducing the energy consumption of the low-temperature treatment system.

[0065] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-temperature treatment system, characterized in that, Comprising: A housing, within which an object to be cooled (100) is placed. Cold storage materials (102) are provided on the opposite first side and second side of the object to be cooled (100). A gap is formed between the opposite third side and fourth side of the object to be cooled (100) and the inner wall of the housing. A heat exchanger (104), which is arranged within the housing and connected to a refrigerator (122) located outside the housing. The heat exchanger (104) is located on the third side of the object to be cooled (100). A fan (106), which is arranged within the housing and located between the heat exchanger (104) and the inner wall of the housing. During off-peak electricity periods, the refrigerator and the fan are turned on. During peak electricity periods, the refrigerator is turned off and the fan remains on. A partition (110) is provided between the object to be cooled (100) and the cold storage materials (102), and the partition (110) is not connected to the inner wall of the housing.

2. The cryogenic treatment system according to claim 1, characterized in that, In the vertical direction, the fan (106) and the heat exchanger (104) are on the same horizontal plane; in the horizontal direction, the axis of the fan (106) coincides with the center line of the heat exchanger (104).

3. The cryogenic treatment system according to claim 2, wherein Further comprising: A driving member (108), which is arranged outside the housing, and the driving member (108) is connected to the fan (106) through a transmission shaft.

4. The cryogenic treatment system according to claim 1, wherein An inlet valve (112) is provided on the liquid inlet pipeline connecting the refrigerator (122) and the heat exchanger (104), and an outlet valve (114) is provided on the liquid outlet pipeline connecting the refrigerator (122) and the heat exchanger (104).

5. The cryogenic treatment system according to any one of claims 1 to 4, characterized in that, The housing includes an outer shell (116) and an inner shell (118), and heat insulation materials (124) are filled between the outer shell (116) and the inner shell (118).

6. The cryogenic treatment system according to claim 5, wherein Further comprising: An exhaust pipe (120), the first end of the exhaust pipe (120) is connected to the inner shell (118), and the second end of the exhaust pipe (120) is connected to the outer shell (116) to communicate the inside of the housing with the outside of the housing.

7. The cryogenic treatment system according to claim 6, characterized in that, There are at least two exhaust pipes (120), which are respectively arranged on the housing corresponding to the opposite first side and second side of the object to be cooled (100).

8. The cryogenic treatment system according to claim 7, characterized in that, A control valve is connected to the exhaust pipe (120) to control the on-off of the exhaust pipe (120).

9. A cryogenic treatment method using the cryogenic treatment system according to any one of claims 1 to 8, characterized in that, Comprising: During off-peak electricity periods, turn on the refrigerator (122) and the fan (106) so that cold enters the cold storage materials (102) and forms a first cycle. During peak electricity periods, turn off the refrigerator (122), keep the fan (106) on, so that the cold stored in the cold storage materials (102) enters the object to be cooled (100) and forms a second cycle.

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