A plasma quick-freezing cold storage for coagulation factors

Abstract

The present invention provides a quick-freezing cold storage for coagulation factor plasma, which includes a cold storage body and at least one refrigeration unit. The refrigeration unit includes a cold storage door, a quick-freezing flat plate, a fan system, an evaporator and a shielding part. The cold storage door is arranged on the front side of the refrigeration unit. One side of the cold storage door is the shielding part, and the other side is the external environment. The shielding part includes an inner door and a connecting plate. The quick-freezing flat plate is fixed on a support frame and is arranged in multiple layers. There are gaps between adjacent quick-freezing flat plates to form an accommodation space. The shielding part is used to enclose the accommodation space corresponding to the quick-freezing flat plate, and divide the interior of the refrigeration unit into several independent and sealed accommodation spaces. When opening the cold storage door to take coagulation factor plasma products, only need to open the corresponding shielding part on a certain layer, which can avoid most of the cold air leakage, is beneficial to more accurate temperature control, reduce temperature fluctuations, and is beneficial to the quick-freezing and activity of the stored coagulation factor plasma.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration, and particularly relates to a quick-freezing cold storage for plasma of coagulation factors. Background Art

[0002] The quick-freezing cold storage for plasma is one of the essential equipments in blood stations and blood centers in major cities. When clinical blood transfusions are carried out in various hospitals, in order to ensure the quality of plasma, it is required that plasma be separated from whole blood within 6 to 8 hours after blood collection and quickly frozen into blocks at low temperature. And for products of coagulation factors, due to the requirement of maintaining their activity, the collected plasma needs to be quickly frozen, and the GMP requires that the central position of the plasma be frozen within 60 minutes. However, most of the current quick-freezing cold storages have slow freezing speed and small freezing capacity, and cannot meet the large-scale usage requirements. During the frequent use of the quick-freezing cold storage, it is inevitable to often open the cold storage door, exposing a large area of the inside of the quick-freezing cold storage, and inevitably bringing hot air in the external environment into the quick-freezing cold storage. Especially in hot summer, when opening the cold storage door to take or put in plasma products of coagulation factors, due to the large temperature difference between the external temperature and the quick-freezing cold storage, the temperature inside the quick-freezing cold storage rises. In order to meet the low-temperature requirement inside the quick-freezing cold storage, its refrigeration components need to continuously work to refrigerate and cool down. This not only causes waste of resources, but also is not conducive to the activity of plasma products of coagulation factors due to the large temperature fluctuation inside the quick-freezing cold storage. Summary of the Invention

[0003] In view of this, the present invention aims to provide a quick-freezing cold storage for plasma of coagulation factors, which reduces the interference of the external environment on it during the use process by setting up two barriers of a cold storage door and a shielding part, and ensures more accurate temperature control of the quick-freezing cold storage.

[0004] To achieve the above object, the technical solution of the present invention is realized as follows:

[0005] A quick-freezing cold storage for plasma of coagulation factors includes a cold storage body and at least one refrigeration unit. The refrigeration unit includes a cold storage door, a quick-freezing plate, a fan system, an evaporator and a shielding part. The cold storage door is arranged on the front side of the refrigeration unit. One side of the cold storage door is the shielding part, and the other side is the external environment. The shielding part includes an inner door and a connecting plate. The shielding part is used to enclose the accommodation space corresponding to the quick-freezing plate, and divide the inside of the refrigeration unit into several independent and airtight accommodation spaces. When opening the cold storage door to take plasma products, only the corresponding shielding part on a certain layer needs to be opened, which avoids most of the cold air leakage and is conducive to more accurate temperature control. The cold storage door and the shielding part provide double protection for the quick-freezing cold storage.

[0006] Furthermore, the cold storage door is hingedly connected to the refrigeration unit for opening or closing the refrigeration unit; the quick-freezing flat plates are fixed on the support frame and are arranged in multiple layers. There are gaps between adjacent quick-freezing flat plates to form accommodation spaces. The shielding part is used to enclose the accommodation spaces. Both sides of the connecting plate are positioned on the left and right inner side walls inside the support frame, and the inner door is rotatably connected to the connecting plate. The quick-freezing flat plates and the shielding part divide the interior of the refrigeration unit into several independent and sealed accommodation spaces. The cold storage door is used to open or close the refrigeration unit. The shielding part is used to open or close the accommodation spaces inside the refrigeration unit, making the use of the quick-freezing cold storage more reasonable, reducing waste of resources, and being more conducive to the activity and freezing rate of plasma products.

[0007] Furthermore, the inner door is connected to the connecting plate through a hinge. The hinge includes a first rotating part, a second rotating part, a rotating shaft, and a spring. The first rotating part and the second rotating part are respectively connected to the rotating shaft. The first rotating part can rotate around the rotating shaft. The spring is sleeved on the rotating shaft. One side of the spring extends out and is connected to the first rotating part, and the other side extends out and is connected to the second rotating part. By using the hinge to set the inner door on the connecting plate, the inner door can be quickly opened and automatically reset, with a simple structure and convenient for the operator to operate.

[0008] Furthermore, the connecting plate and the second rotating part are connected through fasteners, and the inner door and the first rotating part are connected through fasteners. When the operator needs to place the tray on the quick-freezing flat plate, push the inner door of the layer where this quick-freezing flat plate is located. Under the action of the hinge, the inner door flips inward to open the accommodation space. After the external force disappears, under the action of the spring, the inner door is reset through the first rotating part to automatically close the accommodation space, without the operator manually closing the inner door. The operation is convenient, and the leakage of cold air is reduced, ensuring the normal temperature of the refrigeration unit.

[0009] Furthermore, the hinge is arranged inside the shielding part, improving the aesthetics and integrity and avoiding the hinge being exposed outside when the cold storage door is opened.

[0010] Furthermore, the quick-freezing flat plate is provided with coiled pipes. Both the quick-freezing flat plate and the evaporator are heat exchangers. This one-drive-two refrigeration mode can be flexibly switched, greatly improving the refrigeration effect and refrigeration rate, being conducive to realizing the quick freezing of plasma products, and bringing great convenience to users. The quick-freezing cold storage of the present invention performs quick-freezing refrigeration on plasma products through two refrigeration methods of the evaporator and the quick-freezing flat plate. Not only is the quick-freezing fast, but they can also be used as backups for each other. When one fails, the other can ensure the normal progress of quick-freezing. When the evaporator and the quick-freezing flat plate work simultaneously, they can quickly cool plasma products, reduce the cooling time, and reduce the loss of effective components in the plasma.

[0011] Further, the refrigeration unit further includes a wind deflector, and the evaporator and the quick-freezing plate are connected through the wind deflector. This is beneficial for guiding the cold air and preventing the cold air from being in a turbulent flow, thereby improving the refrigeration efficiency. The low-temperature gas all flows towards the quick-freezing plate under the guiding action of the wind deflector, and the quick-freezing plate itself also has a refrigeration function, which can quickly freeze plasma products.

[0012] Further, the refrigeration unit further includes a fan system, and the fan system is arranged between the evaporator and the quick-freezing plate. After the evaporator reduces the temperature inside the refrigeration unit, the fan system promotes the air circulation for refrigeration, blowing the low-temperature gas to the quick-freezing plate, so as to freeze the plasma products placed on the quick-freezing plate.

[0013] Further, the quick-freezing cold storage further includes a host computer, a control unit, and a human-machine interaction. The control unit is used to control the sound and light, thermometer, fan system, compressor, and control valves. The host computer is used to collect, record the real-time temperature and record the alarm information, and send it to relevant personnel through the Internet of Things module for WeChat reminder or directly export and print relevant data through a printer.

[0014] Further, the quick-freezing cold storage adopts fuzzy PID control. The PID temperature feedback selects the temperature of any one refrigeration unit or the average value of the temperatures of multiple refrigeration units, so as to ensure the uniform distribution of the temperature in the entire quick-freezing cold storage.

[0015] Compared with the prior art, the coagulation factor plasma quick-freezing cold storage of the present invention has the following advantages:

[0016] (1) The cold storage door and the shielding part provide double protection for the quick-freezing cold storage; the quick-freezing plates of the present invention are arranged in multiple layers, and there are gaps between adjacent quick-freezing plates to form an accommodation space, and the shielding part is used to enclose the accommodation space. When opening the cold storage door to take plasma products, only the corresponding shielding part on a certain layer needs to be opened, which avoids most of the cold air leakage and is beneficial for more accurate temperature control.

[0017] (2) After the inner door is opened, it can automatically reset and close the accommodation space without the operator manually closing the inner door. The operation is convenient, and the cold air leakage is reduced, ensuring the normal temperature of the quick-freezing box.

[0018] (3) A plurality of refrigeration units are arranged in the cold storage body to increase the quantity of plasma products stored and meet the large-scale use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0020] Figure 1 Cross-sectional view of the refrigeration unit described in Embodiment 1 of the present invention;

[0021] Figure 2 Schematic structural diagram of the shielding part of the refrigeration unit described in Embodiment 1 of the present invention;

[0022] Figure 3 Schematic structural diagram of the hinge described in Embodiment 1 of the present invention;

[0023] Figure 4 Schematic structural diagram of the quick-freezing flat plate described in Embodiment 1 of the present invention;

[0024] Figure 5 Schematic structural diagram of the cold storage body described in Embodiment 1 of the present invention;

[0025] Figure 6 Schematic diagram of the refrigerant circuit described in Embodiment 1 of the present invention;

[0026] Figure 7 Schematic structural diagram of the control system described in Embodiment 2 of the present invention.

[0027] Explanation of reference numerals:

[0028] 1. Cold storage body; 2. Cold storage door; 3. Maintenance door; 4. Inner door; 5. Quick-freezing flat plate; 6. Tray; 7. Fan system; 8. Air deflector; 9. Evaporator; 10. Refrigeration unit; 11. Coil; 12. Support frame; 13. Connecting plate; 14. Hinge; 15. First rotating part; 16. Second rotating part; 17. Rotating shaft; 18. Spring; 19. Host computer; 20. Printer; 21. Control unit; 22. Human-computer interaction; 23. Acousto-optic lamp; 24. Thermometer; 25. Compressor; 26. Control valve. Detailed implementation manners

[0029] The present invention will be described in detail below with reference to the drawings and in combination with embodiments. The embodiments described in the present invention are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0030] It should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing 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 limiting the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0031] Example 1

[0032] A quick-freezing cold storage for blood coagulation factor plasma is used to quickly freeze and store blood coagulation factor plasma products. As Figures 1-6 shown, the quick-freezing cold storage for blood coagulation factor plasma includes a cold storage body 1 and at least one refrigeration unit 10 to increase the freezing capacity. The refrigeration unit 10 is the core component of the quick-freezing cold storage and is arranged inside the cold storage body 1. For a single refrigeration unit 10, it includes a cold storage door 2, a quick-freezing flat plate 5, a fan system 7 and an evaporator 9. The quick-freezing flat plate 5, the evaporator 9, the compressor 25 and the condenser of the refrigeration unit 10 form a refrigerant circuit to complete the refrigeration cycle, realizing the cooling of the quick-freezing cold storage and the quick freezing of blood coagulation factor plasma products. For the convenience of description, the side where the cold storage door 2 is located is defined as the front side, and the side far from the cold storage door 2 is defined as the rear side. The cold storage door 2 is hinged at the outer end of the front side of the refrigeration unit 10 to facilitate opening or closing of the refrigeration unit 10. The quick-freezing flat plate 5 is arranged inside the refrigeration unit 10, fixed on the support frame 12, and is provided with multiple layers. A tray 6 is correspondingly placed on each layer of the quick-freezing flat plate 5. The quick-freezing flat plate 5 provides stable support for the tray 6. The tray 6 can store multiple plasma products, facilitating the operator to place multiple plasma products into the quick-freezing cold storage or take out multiple plasma products at one time with the help of the tray 6. At the same time, it helps to increase the number of plasma products stored in the quick-freezing cold storage and reduce waste of resources. The interval between adjacent quick-freezing flat plates 5 can be adjusted to meet plasma products of different specifications and sizes.

[0033] A gap is formed between adjacent quick-freezing flat plates 5 to form an accommodation space for placing the tray 6 and plasma products. A connecting plate 13 and an inner door 4 are arranged on the front side of the quick-freezing flat plate 5, that is, the side of the quick-freezing flat plate 5 facing the cold storage door 2. The connecting plate 13 and the inner door 4 form a shielding part. One side of the cold storage door 2 is the shielding part, and the other side is the external environment. As Figures 1-2As shown, the shielding parts and the quick-freezing plates 5 are arranged in one-to-one correspondence. The shielding parts are used to enclose the accommodation spaces corresponding to the quick-freezing plates 5, dividing the interior of the refrigeration unit 10 into several independent and sealed accommodation spaces. When opening the cold storage door 2 to take plasma products, only the corresponding shielding part on a certain layer needs to be opened, which avoids most of the cold air leakage and is conducive to achieving more precise temperature control. In the prior art, there is no design of the connecting plate 13 and the inner door 4. When the cold storage door 2 is opened, all the accommodation spaces are exposed to the environment, resulting in a large amount of cold air overflow, causing unnecessary losses and waste. Moreover, the hot air outside enters the refrigeration unit 10, making multiple plasma products placed in the refrigeration unit 10 come into contact with the outdoor environment, which will cause the temperature of the plasma products to rise and is not conducive to the quick freezing of plasma products. The non-constant temperature inside the refrigeration unit 10 will affect the quality of plasma products. Compared with the prior art, the quick-freezing cold storage of the present application divides the refrigeration unit 10 into multiple independent and closable accommodation spaces, and only the corresponding shielding part needs to be opened when in use, without having to expose all plasma products to the environment. The refrigeration unit 10 includes a total of two protection structures, namely the cold storage door 2 and the shielding part, which can effectively block the influence of external hot air on the temperature of the quick-freezing cold storage.

[0034] The structure and connection relationship of the shielding part will be further described below. Specifically, as Figures 2-3As shown, both sides of the connecting plate 13 are respectively positioned on the left and right inner side walls inside the support frame 12. The inner door 4 is rotatably connected to the connecting plate 13, so that the inner door 4 can open the accommodation space and automatically reset to close the accommodation space. More specifically, the inner door 4 is connected to the connecting plate 13 through a hinge 14. The principle of the hinge 14 is the same as that of the prior art. The hinge 14 includes a first rotating part 15, a second rotating part 16, a rotating shaft 17 and a spring 18. The first rotating part 15 and the second rotating part 16 are respectively connected to the rotating shaft 17, and the first rotating part 15 can rotate around the rotating shaft 17. The spring 18 is sleeved on the rotating shaft 17. One side of the spring 18 extends out and is connected to the first rotating part 15, and the other side extends out and is connected to the second rotating part 16. The connecting plate 13 and the second rotating part 16 are connected by fasteners such as screws, and the inner door 4 and the first rotating part 15 are connected by fasteners such as screws. The hinge 14 is arranged inside the shielding part, which improves the aesthetics and integrity, and avoids the hinge 14 being exposed outside when the cold storage door 2 is opened. When the operator needs to place the tray 6 on the quick-freezing flat plate 5, push the inner door 4 of the layer where the quick-freezing flat plate 5 is located. Under the action of the hinge 14, the inner door 4 flips inward to open the accommodation space. After the external force disappears, under the action of the spring 18, the inner door 4 resets through the first rotating part 15 to automatically close the accommodation space, and the operator does not need to manually close the inner door 4. The operation is convenient, there is no need to manually close the inner door 4, and the leakage of cold air is reduced, ensuring the normal temperature of the refrigeration unit 10. Multiple hinges 14 can be provided, which is beneficial to improving the connection stability and the smoothness of opening and closing of the inner door 4.

[0035] When the quick-freezing cold storage is working, the compressor 25 and the condenser will generate heat. To avoid the adverse impact of heat generation on temperature control, the compressor 25 and the condenser can be arranged outside the cold storage body 1. A coil pipe 11 is arranged at the quick-freezing plate 5. The structure and principle of the evaporator 9 are the same as those of the prior art. Both the quick-freezing plate 5 and the evaporator 9 can be used as heat exchangers. The evaporator 9 is used to cause the liquid refrigerant to expand sharply in volume and decrease in pressure in the evaporator 9 after passing through the throttling device, and to undergo a change from liquid to gas. During this change process, the refrigerant absorbs a large amount of heat, so that heat exchange occurs between the evaporator 9 and the external environment, and cold air is blown out through the fan system 7 to achieve refrigeration. The liquid refrigerant flows through the coil pipe 11 of the quick-freezing plate 5 after passing through the throttling device, and will vaporize and absorb a large amount of heat, so that heat exchange occurs between the quick-freezing plate 5 and the external environment to achieve refrigeration. Specifically, when the quick-freezing cold storage is working, the refrigerant is compressed by the compressor 25 to form a high-temperature and high-pressure refrigerant, and after releasing heat through the condenser, it forms a low-temperature and high-pressure refrigerant, and then enters the throttling device and is transformed into a gaseous low-temperature refrigerant and then enters the evaporator 9 and / or the quick-freezing plate 5 respectively. After absorbing the heat in the refrigeration unit 10 and evaporating into a gaseous refrigerant in the evaporator 9 and / or the quick-freezing plate 5, it returns to the compressor 25 to complete a refrigeration cycle. A control valve 26 is arranged on the quick-freezing plate 5 to control the connection or disconnection of the refrigerant and the coil pipe 11. A corresponding control valve 26 is also arranged on the evaporator 9 to control the connection or disconnection of the refrigerant and the evaporator 9. By opening or closing the control valve 26, heat exchange can be carried out only by the evaporator 9 or only by the quick-freezing plate 5 or both the evaporator 9 and the quick-freezing plate 5. This one-to-two refrigeration mode can be flexibly switched, greatly improving the refrigeration effect and refrigeration rate, and is beneficial to the quick-freezing of plasma products, bringing great convenience to users. The quick-freezing cold storage of the present invention quick-freezes and refrigerates plasma products through two refrigeration methods of the evaporator 9 and the quick-freezing plate 5. Not only is the quick-freezing fast, but they can also be used as backups for each other. When one of them fails, the other can ensure the normal progress of quick-freezing. When the evaporator 9 and the quick-freezing plate 5 work simultaneously, they can quickly cool plasma products, reduce the cooling time, and reduce the loss of effective components in the plasma.

[0036] Further, as Figure 4 shown, the coil pipe 11 is arranged in a bent snake shape at the quick-freezing plate 5, increasing the flow path of the refrigerant, improving the heat exchange area, and thus improving the refrigeration effect. The material of the quick-freezing plate 5 is aluminum, which is not only conducive to heat conduction, but also has high strength and is durable, and will not deform the quick-freezing plate 5 when multiple plasma products are arranged above the quick-freezing plate 5.

[0037] Multiple refrigeration units 10 are arranged inside the cold storage body 1 to increase the quantity of plasma products stored and meet the large-scale usage requirements. Each refrigeration unit 10 can be correspondingly provided with an evaporator 9, or multiple refrigeration units 10 can be correspondingly provided with one evaporator 9, and the layout can be reasonably arranged according to actual needs. The fan system 7 is arranged between the evaporator 9 and the quick-freezing plate 5. After the evaporator 9 reduces the temperature inside the refrigeration unit 10, the fan system 7 promotes air circulation for refrigeration, blowing the low-temperature gas to the quick-freezing plate 5, thereby freezing the plasma products placed on the quick-freezing plate 5. The refrigeration unit 10 further includes a wind guide plate 8, and the evaporator 9 and the quick-freezing plate 5 are connected through the wind guide plate 8, which is beneficial to the guiding effect of the cold air and prevents the cold air from turbulent flow, improving the refrigeration efficiency. The low-temperature gas all flows towards the quick-freezing plate 5 under the guiding action of the wind guide plate 8, and the quick-freezing plate 5 itself also has a refrigeration effect, which can quickly freeze the plasma products. The gas flowing out of the quick-freezing plate 5 will have its temperature rise after quick-freezing the plasma products, and then flow along the inner wall of the cold storage body 1 towards the evaporator 9, and after cooling at the evaporator 9, it flows back to the quick-freezing plate 5 again. An access door 3 is arranged on the cold storage body 1 to facilitate checking and maintaining the refrigeration unit 10 through the access door 3.

[0038] Embodiment 2

[0039] In this embodiment, its basic structure, principle, and the technical effects generated are the same as those in Embodiment 1. For a brief description, for the parts not mentioned in this embodiment, the corresponding content in Embodiment 1 can be referred to. Since the quick-freezing cold storage of the present invention has a large volume, it is necessary to conveniently and timely master the operating conditions of the refrigeration units 10. The quick-freezing cold storage of the present invention adopts fuzzy PID control. Specifically, the set value of PID can be controlled according to the required quick-freezing time, which is convenient and flexible to achieve the quick-freezing requirements. The PID temperature feedback can select the temperature of any one refrigeration unit 10, or the average temperature of multiple refrigeration units 10, so as to ensure the uniform distribution of the temperature of the entire quick-freezing cold storage. The quick-freezing cold storage for coagulation factor plasma of the present invention further includes a control system, and the control system includes a host computer 19, a control unit 21, and a human-machine interaction 22. Specifically, the control unit 21 is used to control the sound and light lamp 23, thermometer 24, fan system 7, compressor 25, and control valve 26, etc. When the quick-freezing temperature is reached, a green sound and light lamp alarm is used for reminder, and when the temperature is abnormal, a red sound and light lamp alarm is used for reminder. The operation of a single refrigeration unit 10 or multiple refrigeration units 10 in synchronization, as well as the setting of the quick-freezing time for coagulation factor plasma products and the setting of alarm parameters, are realized on the human-machine interaction 22 interface. The host computer 19 is used to collect, record the real-time temperature, and record the alarm information, and send it to relevant personnel through the Internet of Things module for WeChat reminder or directly export and print relevant data through the printer 20.

[0040] 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 principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A plasma quick-freezing cold storage for coagulation factors, characterized in that, The quick-freezing cold storage includes a cold storage body (1) and at least one refrigeration unit (10). The refrigeration unit (10) includes a cold storage door (2), a quick-freezing flat plate (5), a fan system (7), an evaporator (9), and a shielding part. The cold storage door (2) is arranged on the front side of the refrigeration unit (10). One side of the cold storage door (2) is the shielding part, and the other side is the external environment. The shielding part includes an inner door (4) and a connecting plate (13). The quick-freezing flat plate (5) is fixed on a support frame (12) and is arranged in multiple layers. There is a gap between adjacent quick-freezing flat plates (5) to form a receiving space. The shielding part is used to enclose the receiving space. The two sides of the connecting plate (13) are respectively positioned on the left and right inner side walls inside the support frame (12). The inner door (4) is rotatably connected to the connecting plate (13) through a hinge (14). The quick-freezing flat plate (5) is provided with a coil pipe (11). Both the quick-freezing flat plate (5) and the evaporator (9) are heat exchangers. The evaporator (9) and the quick-freezing flat plate (5) are connected through a wind guiding plate (8).

2. A plasma quick-freezing cold storage for coagulation factors according to claim 1, characterized in that, The cold storage door (2) and the refrigeration unit (10) are hinged for opening or closing the refrigeration unit (10).

3. A plasma quick-freezing cold storage for coagulation factors according to claim 1, characterized in that, The hinge (14) includes a first rotating part (15), a second rotating part (16), a rotating shaft (17), and a spring (18). The first rotating part (15) and the second rotating part (16) are respectively connected to the rotating shaft (17). The first rotating part (15) can rotate around the rotating shaft (17). The spring (18) is sleeved on the rotating shaft (17). One side of the spring (18) extends out and is connected to the first rotating part (15), and the other side extends out and is connected to the second rotating part (16).

4. A plasma quick-freezing cold storage for coagulation factors according to claim 3, characterized in that, The connecting plate (13) and the second rotating part (16) are connected through a fastener. The inner door (4) and the first rotating part (15) are connected through a fastener.

5. A quick-freezing cold storage for coagulation factor plasma according to claim 1, characterized in that, The hinge (14) is arranged on the inner side of the shielding part.

6. A plasma quick-freezing cold storage for coagulation factors according to claim 1, characterized in that, The refrigeration unit (10) further includes a fan system (7). The fan system (7) is arranged between the evaporator (9) and the quick-freezing flat plate (5).

7. A plasma quick-freezing cold storage for coagulation factors according to claim 1, characterized in that, The quick-freezing cold storage further includes a host computer (19), a control unit (21), and a human-machine interaction (22). The control unit (21) is used to control a sound and light device (23), a thermometer (24), the fan system (7), a compressor (25), and a control valve (26).

8. A quick-freezing cold storage for coagulation factor plasma according to claim 1, characterized in that, The quick-freezing cold storage adopts fuzzy PID control. The PID temperature feedback selects the temperature of any one refrigeration unit (10), or selects the average value of the temperatures of multiple refrigeration units (10).

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