Double-refrigeration storage thermal insulation equipment

Abstract

The utility model discloses a double-refrigeration storage heat preservation device which comprises a storage device, a refrigeration mechanism and a supporting and adjusting mechanism, and the height of the storage device and the height of the refrigeration mechanism can be integrally or locally adjusted through the supporting and adjusting mechanism. The refrigerating mechanism comprises a first refrigerating system, a second refrigerating system and an expansion tank; the first refrigerating system is arranged at the lower end of the second refrigerating system; the expansion tank is arranged at the upper end of the second refrigerating system; the first refrigerating system and the second refrigerating system can independently and alternately refrigerate or simultaneously refrigerate the storage equipment. The storage device has the advantages that the double refrigerating systems operate alternately, the refrigerating systems can be in a low-power-consumption state all the time, the interior of the storage device can be in low-temperature protection for a long time, and external heat can be effectively prevented from permeating into the storage device through the arrangement of the heat preservation layer and the double shells; meanwhile, a set of intermittent refrigerating system can be used for heat dissipation and cooling, so that the service life is prolonged, and faults of the refrigerating system are effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of sample storage, in particular to double refrigeration storage and heat preservation equipment. Background Art

[0002] In the field of biological sample storage, low-temperature storage equipment is often used to store biological samples such as blood samples, vaccines, bacteria and viruses, so that the samples are kept in liquid nitrogen for short-term active preservation.

[0003] The storage devices currently in use basically adopt a single refrigeration system, and are started and stopped frequently. Each time the refrigeration system is started, the internal refrigerant flow needs to be re-driven, and when it stops, the refrigerant stops flowing, resulting in the loss of electricity in the form of internal energy instead of being converted into cooling capacity; when the refrigeration system stops working, the heat outside the storage device will penetrate into the storage device, causing the temperature of the storage device to gradually increase, and when the refrigeration mechanism starts, it will bring the heat out of the storage device, resulting in large temperature fluctuations. If the refrigeration mechanism is always in working condition, the failure rate will increase significantly. Once the refrigeration system fails and cannot be restarted, the internal temperature of the storage device will continue to rise, resulting in damage to the stored items in the storage device, and the currently used storage devices have poor thermal insulation effect, and external heat can easily enter the storage device; for this reason, the inventor has designed a dual refrigeration system that can keep the storage device in refrigeration protection for a long time. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems or problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a dual refrigeration storage and insulation equipment, which can operate in a dual refrigeration system alternately. The refrigeration system can always be in a low-power state, and the interior of the storage equipment can be kept in low-temperature protection for a long time. Through the setting of the insulation layer, the external heat can be effectively prevented from penetrating into the interior of the storage equipment; at the same time, a set of refrigeration systems in rotation can dissipate heat and cool down to extend the service life and effectively prevent refrigeration system failure.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a dual refrigeration storage and heat preservation device, which includes a storage device, a refrigeration mechanism, and a support and adjustment mechanism; a refrigeration mechanism is arranged on the side of the storage device, and a support and adjustment mechanism is arranged at the lower end of the storage device, the refrigeration mechanism can cool the storage device, and the support and adjustment mechanism can adjust the height of the storage device and the refrigeration mechanism as a whole or partially.

[0008] As a preferred solution of the dual refrigeration storage and insulation equipment of the utility model, the refrigeration mechanism includes a first refrigeration system, a second refrigeration system, and an expansion tank; the first refrigeration system is arranged at the lower end of the second refrigeration system, and the expansion tank is arranged at the upper end of the second refrigeration system; the first refrigeration system and the second refrigeration system can cool the storage device alternately or simultaneously.

[0009] As a preferred solution of the dual refrigeration storage and heat preservation device of the utility model, wherein: at least one storage compartment is opened in the storage device, and an insulation cover is arranged on the upper end of the storage compartment, and the insulation cover can close and insulate the storage compartment.

[0010] As a preferred solution of the dual refrigeration storage and heat preservation device of the utility model, a clamping piece is provided on the heat preservation cover, and the gripper can be clamped with the clamping piece to drive the heat preservation cover to move.

[0011] As a preferred solution of the dual refrigeration storage and heat preservation equipment of the utility model, liquid nitrogen pipes are arranged on the bottom and side walls of the storage compartment, liquid nitrogen holes are opened on the liquid nitrogen pipes, and liquid is supplied through the liquid nitrogen holes.

[0012] As a preferred solution of the dual refrigeration storage and heat preservation equipment of the utility model, the first refrigeration system and the second refrigeration system include cooling pipes, and the cooling pipes are arranged on the side walls of the storage compartment.

[0013] As a preferred solution of the dual refrigeration storage and heat preservation device of the utility model, a valve is provided on the liquid nitrogen pipe, and the valve can control the on and off of the liquid nitrogen in the liquid nitrogen pipe.

[0014] As a preferred solution of the dual refrigeration storage and heat preservation device of the utility model, wherein: at least one group of storage racks is arranged in the storage device, and the baskets can be stored on the storage racks.

[0015] As a preferred solution of the dual refrigeration storage and heat preservation device of the utility model, the storage device includes a heat preservation inner shell and a heat preservation outer shell, and the heat preservation outer shell is arranged on the outer side of the heat preservation inner shell.

[0016] As a preferred solution of the dual refrigeration storage and heat preservation device of the utility model, a heat preservation layer is arranged between the heat preservation inner shell and the heat preservation outer shell.

[0017] As a preferred solution of the dual refrigeration storage and heat preservation equipment of the utility model, the heat preservation layer can be vacuum filled or liquid nitrogen filled.

[0018] As a preferred solution of the dual refrigeration storage and heat preservation device of the utility model, it also includes an electric control box and a vacuum pump, and the electric control box and the vacuum pump are arranged on one side of the storage device.

[0019] The beneficial effects of the utility model are as follows: the utility model adopts the alternating operation mode of the dual refrigeration system, so the refrigeration system can be always in a low-power state, and the interior of the storage device can be kept in low-temperature protection for a long time. The setting of the thermal insulation layer can effectively prevent external heat from penetrating into the interior of the storage device; at the same time, a set of refrigeration systems in rotation can dissipate heat and cool down to extend the service life and effectively prevent refrigeration system failures. The low-power continuous operation of the dual refrigeration systems improves the low-temperature performance inside the storage device while reducing energy loss. The overall height or local height of the storage device can be adjusted through the support adjustment mechanism, making the device adaptable to a wider range of scenarios. By providing multiple storage compartments and thermal insulation covers in the storage device, more basket samples can be frozen and stored, and the setting of the double-layer shell and the thermal insulation layer reduces the penetration of external heat into the storage compartment, greatly improving the cooling and thermal insulation effects in the storage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a three-dimensional schematic diagram of a dual refrigeration storage and thermal insulation device.

[0022] Figure 2 This is the right side view of the dual refrigeration storage and insulation equipment.

[0023] Figure 3 for Figure 2 Cross-sectional view at AA of the Zhongshuang refrigeration storage and insulation equipment.

[0024] Figure 4 This is a three-dimensional schematic diagram of the dual refrigeration storage and insulation equipment from another perspective.

[0025] Figure 5 for Figure 4 Enlarged view of F1 of Zhongshuang refrigeration storage and insulation equipment.

[0026] Figure 6 A top view of a dual refrigeration storage and insulation device.

[0027] Figure 7 for Figure 6 Enlarged view of F3 of Zhongshuang refrigeration storage and insulation equipment.

[0028] Figure 8 This is a schematic diagram from another perspective of the dual refrigeration storage and insulation equipment.

[0029] Fig. 9 for Figure 8 Enlarged view of F5 of Zhongshuang refrigeration storage and insulation equipment.

[0030] Figure numerals: storage device, 1; refrigeration mechanism, 2; support and adjustment mechanism, 3; first refrigeration system, 21; second refrigeration system, 22; expansion tank, 23; storage compartment, 11; insulation cover, 12; clamping piece, 13; liquid nitrogen pipe, 14; liquid nitrogen hole, 15; cooling pipe, 24; valve, 16; storage rack, 17; basket, 18; insulation inner shell, 101; insulation outer shell, 102; insulation layer, 103; electric control box, 4; vacuum pump, 5; DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1

[0035] Reference Figures 1 to 3 , which is the first embodiment of the utility model, and this embodiment provides a dual refrigeration storage and heat preservation device, which includes a storage device 1, a refrigeration mechanism 2, and a support and adjustment mechanism 3; the refrigeration mechanism 2 is arranged on the side of the storage device 1, and the support and adjustment mechanism 3 is arranged at the lower end of the storage device 1, the refrigeration mechanism 2 can cool the storage device 1, and the support and adjustment mechanism 3 can adjust the height of the storage device 1 and the refrigeration mechanism 2 as a whole or partially.

[0036] Preferably, the support and adjustment mechanism 3 can support the storage device 1 and the refrigeration mechanism 2, and multiple groups of the support and adjustment mechanism 3 can be set. The height of the storage device 1 and the refrigeration mechanism 2 can be adjusted as a whole or partially through the support and adjustment mechanism 3, and can adapt to the ground with different levels. The height of the storage device 1 and the refrigeration mechanism 2 can also be adjusted as a whole as needed.

[0037] In summary, the utility model performs low-temperature freezing and storage of biological samples inside the storage device 1, and can perform low-temperature freezing and preservation of biological samples inside the storage device 1 through the refrigeration mechanism 2. The height of the storage device 1 and the refrigeration mechanism 2 can be adjusted as a whole or partially through the support adjustment mechanism 3, and the height of the device can be adjusted as needed.

[0038] Example 2

[0039] Reference Figures 1 to 9 , which is the second embodiment of the utility model, is based on embodiment 1, and the dual refrigeration storage and heat preservation device includes a storage device 1, a refrigeration mechanism 2, and a support and adjustment mechanism 3; the refrigeration mechanism 2 is arranged on the side of the storage device 1, and the support and adjustment mechanism 3 is arranged at the lower end of the storage device 1. The refrigeration mechanism 2 can cool the storage device 1, and the support and adjustment mechanism 3 can adjust the height of the storage device 1 and the refrigeration mechanism 2 as a whole or partially.

[0040] Preferably, the support and adjustment mechanism 3 can support the storage device 1 and the refrigeration mechanism 2, and multiple groups of the support and adjustment mechanism 3 can be set. The height of the storage device 1 and the refrigeration mechanism 2 can be adjusted as a whole or partially through the support and adjustment mechanism 3, and can adapt to the ground with different levels. The height of the storage device 1 and the refrigeration mechanism 2 can also be adjusted as a whole as needed.

[0041] Furthermore, the refrigeration mechanism 2 includes a first refrigeration system 21, a second refrigeration system 22, and an expansion tank 23; the first refrigeration system 21 is arranged at the lower end of the second refrigeration system 22, and the expansion tank 23 is arranged at the upper end of the second refrigeration system 22; the first refrigeration system 21 and the second refrigeration system 22 can cool the storage device 1 alternately or simultaneously.

[0042] The control system controls the temperature in the storage device 1 in the following steps: 1. The control system can detect whether the temperature in the storage device 1 is greater than a set value; if so, the first refrigeration system 21 and the second refrigeration system 22 are turned on to lower the temperature until the lower limit of the temperature of the storage device 1 is reached; if not, a rotation timer is started;

[0043] 2. After the lower temperature limit of storage device 1 is met, the control system detects whether the shutdown temperature is less than the set value. If so, the overload safety protection setting of the dual refrigeration system is triggered, the system shuts down and outputs an alarm; if not, the rotation timer is started;

[0044] 3. After the rotation timer is started, the first refrigeration system 21 is turned on and the second refrigeration system 22 is turned off; after the time reaches the set value, the second refrigeration system 22 is turned on and the first refrigeration system 21 is turned off; until the temperature of the storage device 1 reaches the upper limit;

[0045] 4. After the upper temperature limit of the storage device 1 is met, the first refrigeration system 21 and the second refrigeration system 22 are turned on to lower the temperature until the lower temperature limit of the storage device 1 is reached;

[0046] 5. Go to step 2, step 3, and step 4 in a loop.

[0047] 6. Manually shut down the control system and shut down the system.

[0048] Preferably, the upper temperature limit of storage device 1 refers to the highest temperature controlled by the dual refrigeration system inside storage device 1; the lower temperature limit of storage device 1 refers to the lowest temperature controlled by the dual refrigeration system inside storage device 1; the system shutdown temperature is the lowest safe temperature after the dual refrigeration system of storage device 1 is overloaded; the rotation time refers to the interval time between the alternating operation of the dual systems; the dual refrigeration system refers to the first refrigeration system 21 and the second refrigeration system 22.

[0049] Working principle of the refrigeration system: First, in the external operation cabin, the biological sample is placed in the basket 18 and moved into the storage device 1 for storage, and then the dual refrigeration system circulates to cool the interior of the storage device 1. When the temperature inside the storage device 1 is high, the dual refrigeration systems can work together to quickly cool down. When the temperature inside the storage device 1 is normal, the dual refrigeration systems work alternately to prevent the risk of overheating due to long-term operation of one system, and also to avoid damage to the biological sample caused by the internal temperature of the storage device 1 rising due to the failure of one refrigeration system.

[0050] At the same time, when only one refrigeration system is working, the refrigerant flow inside needs to be re-driven when the refrigeration system is started, and the refrigerant stops flowing when it stops, causing the power to be lost in the form of internal energy instead of being converted into cooling capacity. The alternating operation of the two refrigeration systems avoids re-driving the refrigerant and achieves energy-saving effects.

[0051] Preferably, the biological sample storage device 1 using a dual refrigeration system can effectively reduce temperature fluctuations and ensure the safety of biological samples.

[0052] Preferably, the energy-saving control of the dual refrigeration system can reduce power consumption by 20% to 40%, and the energy-saving effect is greatly improved.

[0053] Furthermore, at least one storage compartment 11 is provided in the storage device 1 , and a heat-insulating cover 12 is provided at the upper end of the storage compartment 11 , and the heat-insulating cover 12 can close and insulate the storage compartment 11 .

[0054] Preferably, a plurality of storage compartments 11 are provided in the storage device 1, and a heat-insulating cover 12 is provided above each storage compartment 11. The heat-insulating cover 12 can ensure that the internal temperature does not leak out, thereby better insulating the samples in the storage device 1.

[0055] Furthermore, a clamping piece 13 is provided on the heat-insulating cover 12 , and the gripper can be clamped with the clamping piece 13 to drive the heat-insulating cover 12 to move.

[0056] Preferably, the external gripper can grab the heat-insulating cover 12 through the clamping piece 13 , so that the clamping piece 13 is away from the storage compartment 11 , and then the basket 18 inside the storage compartment 11 is extracted.

[0057] Furthermore, a liquid nitrogen pipe 14 is provided on the bottom and side wall of the storage cabin 11 , and a liquid nitrogen hole 15 is opened on the liquid nitrogen pipe 14 , and the liquid nitrogen pipe 14 supplies liquid through the liquid nitrogen hole 15 .

[0058] Preferably, liquid nitrogen can be transported into the storage compartment 11 through the liquid nitrogen pipe 14 and the liquid nitrogen hole 15 to ensure low-temperature freezing of the biological sample and to ensure the activity of the sample.

[0059] Furthermore, the first refrigeration system 21 and the second refrigeration system 22 include cooling pipes 24 , and the cooling pipes 24 are arranged on the side walls of the storage compartment 11 .

[0060] Preferably, the liquid nitrogen can be continuously and uniformly cooled by the cooling tube 24 to ensure that the liquid nitrogen is continuously kept at a low temperature.

[0061] Furthermore, a valve 16 is provided on the liquid nitrogen pipe 14 , and the valve 16 can control the on-off of the liquid nitrogen in the liquid nitrogen pipe 14 .

[0062] Preferably, the valve 16 is disposed on the liquid nitrogen pipe 14 on the side of the storage device 1 .

[0063] Furthermore, at least one set of storage racks 17 is provided in the storage device 1 , and the baskets 18 can be stored on the storage racks 17 .

[0064] Preferably, a plurality of storage racks 17 are provided in each storage compartment 11 , and each storage rack 17 can support a basket 18 .

[0065] Furthermore, the storage device 1 includes a heat-insulating inner shell 101 and a heat-insulating outer shell 102 , and the heat-insulating outer shell 102 is disposed on the outer side of the heat-insulating inner shell 101 .

[0066] Preferably, heat preservation can be achieved by providing the heat-insulating inner shell 101 and the heat-insulating outer shell 102, thereby preventing external heat from easily entering the storage device 1 and achieving a heat-insulating effect.

[0067] Furthermore, a heat-insulating layer 103 is provided between the heat-insulating inner shell 101 and the heat-insulating outer shell 102 .

[0068] Furthermore, the thermal insulation layer 103 may be vacuum filled or liquid nitrogen filled.

[0069] Preferably, the thermal insulation effect can be further improved by providing the thermal insulation layer 103 .

[0070] Preferably, the thermal insulation layer 103 may also be made of other thermal insulation materials or thermal insulation fillers.

[0071] Furthermore, it also includes an electric control box 4 and a vacuum pump 5 , and the electric control box 4 and the vacuum pump 5 are arranged on one side of the storage device 1 .

[0072] In summary, the utility model uses the energy-saving control mode of the dual refrigeration system of the storage device 1 and the alternating operation mode of the dual systems, so that the refrigeration system is always in a low-power working state, and the storage device 1 is protected by the refrigeration system for a long time, which reduces the heat from the external environment of the storage device 1 that penetrates the insulation layer and is introduced into the storage device 1, thereby reducing the temperature fluctuation inside the storage device 1. At the same time, a set of systems that rotate can dissipate heat and reduce temperatures to extend the service life and effectively prevent refrigeration system failures. Through the low-power continuous operation of the dual refrigeration system, the low-temperature performance of the storage device 1 is improved while reducing energy loss. The storage device 1 can be further insulated by the arrangement of the insulation inner shell 101, the insulation outer shell 102 and the insulation layer 103 to prevent external heat from penetrating into the storage device 1, so that the storage device can be in refrigeration protection for a long time.

[0073] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0074] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0075] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, without undue experimentation, the development effort will be a routine task of design, fabrication, and production.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A dual refrigeration storage and heat preservation device, Features: It includes a storage device, a refrigeration mechanism, and a support and adjustment mechanism; the refrigeration mechanism is arranged on the side of the storage device, and the support and adjustment mechanism is arranged at the lower end of the storage device. The refrigeration mechanism can cool the storage device, and the support and adjustment mechanism can adjust the height of the storage device and the refrigeration mechanism as a whole or partially.

2. The dual refrigeration storage and heat preservation device according to claim 1, Features: The refrigeration mechanism includes a first refrigeration system, a second refrigeration system, and an expansion tank; the first refrigeration system is arranged at the lower end of the second refrigeration system, and the expansion tank is arranged at the upper end of the second refrigeration system; the first refrigeration system and the second refrigeration system can cool the storage device alternately or simultaneously.

3. The dual refrigeration storage and heat preservation device according to claim 2, Features: At least one storage compartment is provided in the storage device, and a heat-insulating cover is provided at the upper end of the storage compartment, and the heat-insulating cover can cover and insulate the storage compartment.

4. The dual refrigeration storage and heat preservation device according to claim 3, Features: The heat-insulating cover is provided with a clamping piece, and the gripper can be clamped with the clamping piece to drive the heat-insulating cover to move.

5. The dual refrigeration storage and heat preservation device according to claim 3, Features: A liquid nitrogen pipe is arranged on the bottom and the side wall of the storage cabin, and a liquid nitrogen hole is opened on the liquid nitrogen pipe, and the liquid nitrogen pipe supplies liquid through the liquid nitrogen hole.

6. The dual refrigeration storage and heat preservation device according to claim 3, Features: The first refrigeration system and the second refrigeration system include cooling pipes, and the cooling pipes are arranged on the side walls of the storage compartment.

7. The dual refrigeration storage and heat preservation device according to claim 5, Features: The liquid nitrogen pipe is provided with a valve, and the valve can control the on and off of the liquid nitrogen in the liquid nitrogen pipe.

8. The dual refrigeration storage and heat preservation device according to claim 1, Features: At least one group of storage racks is arranged in the storage device, and the baskets can be stored on the storage racks.

9. The dual refrigeration storage and heat preservation device according to claim 1, Features: The storage device comprises a heat-insulating inner shell and a heat-insulating outer shell, and the heat-insulating outer shell is arranged outside the heat-insulating inner shell.

10. The dual refrigeration storage and heat preservation device according to claim 9, Features: A heat-insulating layer is arranged between the heat-insulating inner shell and the heat-insulating outer shell.

11. The dual refrigeration storage and heat preservation device according to claim 10, Features: The thermal insulation layer may be vacuum filled or liquid nitrogen filled.

12. The dual refrigeration storage and heat preservation device according to claim 1, Features: It also includes an electric control box and a vacuum pump, which are arranged on one side of the storage device.

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