Cold storage temperature adjusting device and high-position three-dimensional cold storage

By using a combination of air supply and return components to regulate the temperature in the high-level automated cold storage, the problem of uneven temperature inside the cold storage was solved, achieving temperature uniformity and rapid response.

CN224108451UActive Publication Date: 2026-04-10HILLCOOL (SHANGHAI) SYSTEMS ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In high-level automated cold storage, it is difficult to achieve uniform temperature regulation in different height areas inside the cold storage, especially when the temperature in a certain height area is lower than the preset threshold, the regulation speed is slow.

Method used

An adjustment assembly including an air supply component and a return air component is adopted. The air supply component is used to deliver cold air to different height positions, and the return air component is used to perform turbulence operation when the air supply component is working. Combined with an electric air valve and a defrosting structure, precise temperature regulation and uniformity are achieved.

Benefits of technology

It achieves uniform temperature regulation and rapid response in all height zones inside the cold storage, ensuring temperature uniformity and rapid adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a refrigeration house temperature adjusting device and a high-position three-dimensional refrigeration house, the adjusting device comprises at least two adjusting assemblies opposite in position, the two adjusting assemblies are different in working state, each adjusting assembly comprises an air supply component and an air return component, the air supply components are used for conveying cold air to different height positions of a refrigeration space, and the air return components are used for returning the cold air to the different height positions of the refrigeration space. The air return component is assembled on the air supply component and used for conducting turbulent flow operation in a matched mode when the air supply component of the adjusting assembly at the relative position is in the working state, and the high-position three-dimensional refrigeration house comprises the adjusting device. According to the refrigeration house temperature adjusting device and the high-position three-dimensional refrigeration house, the temperature of each height area position in the refrigeration house can be well adjusted, it is guaranteed that the temperature of each height area position in the refrigeration house is uniform, and the temperature of a certain height area position can be rapidly adjusted.
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Description

TECHNICAL FIELD

[0001] The utility model relates to cold storage equipment technical field especially relates to a cold storage temperature regulating device and high stereoscopic cold storage. BACKGROUND

[0002] In the low temperature cold storage, especially high stereoscopic cold storage, because of its height reason, in the temperature regulation process to the cold storage interior, it is difficult to make the temperature of each height position area in the cold storage interior even, and when the temperature of a height area in the cold storage is lower than the preset threshold, under the general condition, it is not very good to adjust, and the turbulence adjustment mode is relatively slow to temperature regulation. SUMMARY

[0003] Therefore, the utility model discloses a cold storage temperature regulating device and high stereoscopic cold storage, can be well adjusted to the temperature of each height area position in the cold storage interior, guarantee the temperature of each height area position in the cold storage interior even, can also quickly adjust the temperature of a height area position quickly.

[0004] The utility model provides a cold storage temperature regulating device and high stereoscopic cold storage, including at least two position opposite adjusting assembly, and two adjusting assembly working state is different, the adjusting assembly includes air supply member and return air member, air supply member is used for delivering cold air to the different height position of refrigeration space, return air member is assembled on air supply member, is used for when the air supply member of adjusting assembly at the opposite position is in the working state, cooperation carries out turbulence operation.

[0005] In an embodiment, the return air member includes a return air pipe and a return air fan, the return air fan is assembled on the upper part of the return air pipe, and the air supply member is in communication with the return air pipe.

[0006] In an embodiment, the return air pipe includes a pipe body, a first electric air valve and a plurality of electric proportional valves, a plurality of openings of different heights are formed on the pipe body, the electric proportional valves are assembled at the corresponding opening positions, and the electric air valve is assembled on the pipe body at a position close to the return air fan.

[0007] In an embodiment, the pipe body includes an inner wall layer, an outer wall layer and a heat preservation layer, and the heat preservation layer is located between the inner wall layer and the outer wall layer.

[0008] In an embodiment, the return air pipe further includes a defrosting structure, and the defrosting structure is assembled in the pipe body.

[0009] In an embodiment, the adjusting device further includes a water pan, and the water pan is assembled at the bottom of the return air member.

[0010] In an embodiment, the water pan comprises a pan body, an electric heating member and a drain pipe, the pan body is assembled at the bottom of the return air member, the electric heating member is assembled at the inner bottom side of the pan body, and the drain pipe is arranged at the bottom of the pan body.

[0011] In an embodiment, the air supply member comprises an air supply pipe, an air supply fan and a second electric air valve, the air supply pipe is communicated with the return air member, the air supply fan is assembled in the air supply pipe, and the second electric air valve is assembled on the air supply pipe.

[0012] In an embodiment, the air supply member further comprises a refrigeration structure, and the refrigeration structure is assembled in the air supply pipe.

[0013] The utility model also provides a high three -dimensional refrigeration house, including any one of above -mentioned refrigeration house temperature regulation device, still include refrigeration house main part, the return air member is assembled on the inner wall of refrigeration house main part.

[0014] The refrigeration house temperature regulation device and the high three -dimensional refrigeration house can adjust the temperature of each height area in the refrigeration house, ensure the uniformity of the temperature of each height area in the refrigeration house, and quickly adjust the temperature of a certain height area. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiment, should understand, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0016] Figure 1 The refrigeration house temperature regulation device provided in the embodiment of the utility model is shown in the structural schematic view.

[0017] Figure 2 The pipe body of the refrigeration house temperature regulation device provided in the embodiment of the utility model is shown in the plan view.

[0018] Figure 3 The water pan of the refrigeration house temperature regulation device provided in the embodiment of the utility model is shown in the front view.

[0019] Figure 4 The water pan of the refrigeration house temperature regulation device provided in the embodiment of the utility model is shown in the plan view.

[0020] Figure 5 The refrigeration house temperature regulation method provided in the embodiment two of the utility model is shown in the flow chart.

[0021] Figure 6 The structure schematic diagram of the high-level stereoscopic refrigeration house is provided for the third embodiment of the utility model. DETAILED DESCRIPTION

[0022] The specific embodiments of the utility model will be described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the description of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "set", "install", "connect" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] The terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, which is only for the convenience of description and simplification of description, and is not indicative or implied that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model.

[0025] The terms "first", "second", "third" and the like are only for distinguishing similar attributes of elements, and are not indicative or implied of relative importance or a specific order.

[0026] The terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, in addition to including the listed elements, other elements not explicitly listed can also be included.

[0027] Embodiment one

[0028] Please refer to Figure 1 The refrigeration house temperature adjusting device provided by the embodiment comprises at least two positionally opposite adjusting assemblies, and the working states of the two adjusting assemblies are different, the adjusting assembly comprises a air supply member 2 and an air return member 1, the air supply member 2 is used for delivering cold air to different height positions of the refrigeration space, and the air return member 1 is assembled on the air supply member 2 and is used for cooperating to perform turbulence operation when the air supply member 2 of the adjusting assembly at the opposite position is in the working state.

[0029] It can be known that the adjusting device is mainly applied in the high-level stereo cold storage, the air supply member 2 can be adhered at the position of the inner wall in the height direction of the high-level stereo cold storage, or can be connected and fixed by the connection mode of the hoop or the bolt, the inside of the high-level stereo cold storage can be divided into several areas, the adjusting device in one area can include two adjusting assemblies, the positions of the two adjusting assemblies are opposite, and it can be understood that the two adjusting assemblies are symmetrically arranged, the two adjusting assemblies are close to each other, and the working states of the two adjusting assemblies are different, that is, the air supply member 2 of one adjusting assembly is in the working state, and the air return member 1 thereof is in the non-working state, the air supply member 2 of the other adjusting assembly is in the non-working state, and the air return member 1 thereof is in the working state, the working state of the air supply member 2 can include two forms, one is that the refrigeration structure works simultaneously, and the other is that the refrigeration structure does not work, and the working state can be referred to the description of the following embodiment two.

[0030] Please refer to Figure 2 In some embodiments, the air return member 1 includes an air return pipe and an air return fan 101, the air return fan 101 is assembled at the upper part of the air return pipe, and the air supply member 2 is communicated with the air return pipe 1.

[0031] It can be understood that the air return pipe can be arranged along the height direction of the high-level stereo cold storage, and can also be used as part of the air supply member 2, the air return fan 101 draws the air at the bottom into the air return pipe, and enters the upper part of the high-level stereo cold storage, so as to cooperate with the air supply member to realize the effect of turbulence.

[0032] Please continue to refer to Figure 2 In some embodiments, the air return pipe includes a pipe body 103, a first electric air valve 102 and a plurality of electric proportional valves 104, a plurality of openings with different heights are formed in the pipe body 103, the electric proportional valves 104 are assembled at the corresponding opening positions, and the first electric air valve 102 is assembled at the position close to the air return fan 101 of the pipe body 103.

[0033] It can be known that the spacing between adjacent openings can be consistent, of course, it can also be set to be inconsistent according to actual needs, the bottom of the pipe body 103 can be closed, and the pipe body 103 can be semicircular and oblate, so as to be conveniently attached to the wall of the cold storage, of course, it can also be cylindrical or polyhedral, the electric proportional valve 104 can accurately adjust the air outlet size of the opening, so as to realize the adjustment and control of the air inlet amount or the air outlet amount, the electric proportional valve 104 can adjust the air return state of the corresponding height area, and the air return state adjustment can include air return amount adjustment and opening and closing.

[0034] Please refer to Figure 3In some embodiments, the pipe body 103 comprises an inner wall layer 103b, an outer wall layer 103c, and a thermal insulation layer 103a, and the thermal insulation layer 103a is located between the inner wall layer 103b and the outer wall layer 103c.

[0035] It can be understood that the inner wall layer 103b can be made of rigid materials such as metal or hard plastic materials, the outer wall layer 103c can be made of metal materials, and the thermal insulation layer 103a can be made of aerogel insulation felt, rubber insulation material layer, or polyurethane foaming insulation material layer. The pipe body 103 with the above structure can reduce the influence of the external environment on the temperature inside the pipe body 103, and the air supply pipe structure can also be arranged according to the structure of the pipe body 103.

[0036] Please continue to refer to Figure 3 In some embodiments, the return air pipe further comprises a defrosting structure 105, and the defrosting structure 105 is assembled in the pipe body 103.

[0037] It can be understood that the defrosting structure 105 can be an electric heating pipe or an HDPE pipe cooperating with a medium conveying pump. The electric heating pipe or the HDPE pipe can be embedded in the thermal insulation layer 103a and close to or adhere to the inner wall layer 103b. The HDPE pipe can be arranged around the pipe body 103, and the medium conveying pump can convey glycol hot solution into the HDPE pipe to perform defrosting operation on the inner wall surface of the pipe body 103. During the defrosting operation, the temperature sensor can be arranged on the inner wall surface of the return air pipe to monitor the defrosting temperature. During the defrosting operation, the air supply and return operations are both stopped. In addition to arranging the defrosting structure 105 in the return air pipe, the defrosting structure 201 can also be arranged in the air supply member 2. The defrosting structure 201 in the air supply member 2 can refer to the defrosting structure 105 in the return air pipe.

[0038] Please refer to Figure 2 In some embodiments, the adjusting device further comprises a water pan 3, and the water pan 3 is assembled at the bottom of the return air member 1.

[0039] It can be understood that the water generated during the defrosting process can flow into the water pan 3 along the pipe body 103 of the return air pipe, and can also flow into the water pan 3 along the air supply pipe 202 and the pipe body 103. The water pan 3 discharges the water generated during the defrosting process to the outside of the cold storage.

[0040] Please continue to refer to Figure 4 and Figure 5 In some embodiments, the water pan 3 comprises a pan body 301, an electric heating member 302, and a drain pipe 303. The pan body 301 is assembled at the bottom of the return air member 1, the electric heating member 302 is assembled at the bottom side of the pan body 301, and the drain pipe 303 is arranged at the bottom of the pan body 301.

[0041] It can be understood that the disc body 301 can be detachably connected with the pipe body 103 of the air return member 1, and the detachable connection can be in the form of bolts, the drain pipe 303 can comprise a stop valve 304, the stop valve 304 is opened during defrosting, the drain pipe 303 can be connected with a hose to drain the water generated during defrosting to the outside of the cold storage, and the electric heating member 302 can be an electric heating wire or an electric heating pipe, which can heat the bottom of the disc body 301, so that the disc body 301 is prevented from being frosted or even iced. The structure of the disc body 301 can also be arranged as the pipe body 103, that is, the disc body 301 also has a heat preservation layer 103a similar to the pipe body 103, and some heat preservation material layer can also be wrapped on the drain pipe 303, so that the temperature inside the cold storage prevents the drain pipe 303 from being blocked by ice.

[0042] Please refer to Figure 2 In some embodiments, the air supply member 2 comprises an air supply pipe 203, an air supply fan 202 and a second electric air valve 204, the air supply pipe 203 is in communication with the air return member 1, the air supply fan 202 is arranged in the air supply pipe 203, and the second electric air valve 204 is arranged on the air supply pipe 203.

[0043] It can be understood that the air supply fan 202 can convey the cold air entering the air supply pipe 203 to the bottom of the air supply pipe 203, and then the cold air can be discharged from each opening along the pipe body 103, and the air volume of the opening can be adjusted by the electric proportional valve 104, so that the temperature at each height position is adjusted.

[0044] Please refer to Figure 2 In some embodiments, the air supply member further comprises a refrigeration structure arranged in the air supply pipe 203.

[0045] It can be understood that the refrigeration structure can be located at the end of the air supply pipe 203, and the refrigeration structure can be a refrigeration terminal evaporator device capable of providing cold air into the air supply pipe 203.

[0046] Embodiment two

[0047] Please refer to Figure 5 The cold storage temperature adjusting method provided by the utility model comprises the following steps:

[0048] S1, acquiring first temperature data of different height positions in a refrigeration space in real time.

[0049] It can be understood that the temperature sensors are arranged at different height positions in the refrigeration space, and the spacing between adjacent temperature sensors can be consistent.

[0050] S2, adjusting the temperature in the refrigeration space according to the first temperature data, and simultaneously performing turbulence operation during the adjustment;

[0051] The above steps can further include:

[0052] S201, calculating the average temperature value of the obtained temperature data.

[0053] S202, when the average temperature value is greater than the average temperature threshold, adjusting the temperature inside the refrigeration space while performing the turbulence operation.

[0054] It can be understood that the average temperature threshold can be (-18°C, -20°C), when the average temperature is higher than -18°C, the refrigeration operation is performed, during the refrigeration process, when the average temperature reaches -20°C, the refrigeration operation stops, after a period of time, the temperature gradually rises, during the average temperature rising process, the refrigeration does not work, when the average temperature is higher than -18°C, the above refrigeration process is repeated, the refrigeration operation refers to the working state of the refrigeration mechanism, the turbulence operation can include air supply and air return, when the air supply and air return work, the turbulence state is in, and the air supply operation mode further includes two modes, one is that the refrigeration mechanism works, and the other is that the refrigeration mechanism does not work, in the working state of the refrigeration mechanism, the cold quantity generated by the refrigeration mechanism is transported, in the non-working state of the refrigeration mechanism, the air in the upper part is transported to the lower space, the air return is to transport the air in the bottom to the upper space, in the refrigeration state, the air supply and air return operations can be triggered operations, when not in the triggering condition, the operations can be forced to start.

[0055] The turbulence temperature threshold can be (-16°C, -22°C), and the first temperature data exists in the following various cases:

[0056] I. The first temperature data exists above the upper limit -16°C of the turbulence temperature threshold, and the other first temperature data is within the turbulence temperature threshold range;

[0057] II. The first temperature data exists below the lower limit -22°C of the turbulence temperature threshold, and the other first temperature data is within the turbulence temperature threshold range;

[0058] III. The first temperature data exists above the upper limit -16°C, and the other first temperature data is below the lower limit -22°C of the turbulence temperature threshold;

[0059] IV. All first temperature data is within the turbulence temperature threshold range.

[0060] For the first three cases, the first temperature data is not in the range of the turbulence temperature threshold, the air supply and return air work will be sent. For the fourth case, forced air supply and return air work is required.

[0061] For the first three cases, the air supply and return air work can be in the working state:

[0062] For case one, the air supply state is: for the height position above the upper limit of the turbulence temperature threshold -16°C, the height position is in the air supply state, and other height regions will also be in the air supply state if the temperature value does not reach the lower limit of the turbulence temperature threshold -22°C. When it is lower than the lower limit of the turbulence temperature threshold -22°C, the air supply state of the height region will be closed. When air supply, the first temperature data is closer to the lower limit of the turbulence temperature threshold -22°C, the air supply amount of the height region will gradually decrease until the first temperature data of the height region is not greater than -22°C. When the first temperature data is less than -22°C, air supply is stopped.

[0063] The return air state is: in this case, the height position above -16°C will be in a complete return air state, i.e. the state of maximum return air amount, until the first temperature data of the height region is not greater than -22°C. The closer the first temperature data is to the lower limit of the turbulence temperature threshold -22°C, the return air amount of the height region will also gradually decrease until the return air is completely stopped.

[0064] For case two, the air supply state is: the height region below the lower limit of the turbulence temperature threshold -22°C, the air supply of the height region is completely stopped, and other height regions will also be in the air supply state until the temperature of the height region is not greater than -22°C, and the closer the height region is to -22°C, the air supply amount gradually decreases.

[0065] The return air state is: in this case, as long as the first data is not at the lower limit of the turbulence temperature threshold -22°C, each height region needs to work in the return air state. For the height region below 22°C, the return air amount of the return air can be appropriately reduced. The greater the absolute value of the difference between the first temperature data of each height region and the lower limit of the turbulence temperature threshold -22°C, the greater the return air amount, otherwise, the return air amount decreases until the temperature of the height region is at -22°C.

[0066] For case three, the air supply state is: at the height position higher than the upper limit of the turbulence temperature threshold value of -16°C, the height position is in the air supply state, other height regions are in the air supply state if the temperature value does not reach the lower limit of the turbulence temperature threshold value of -22°C, and the air supply state of the height region is closed when being lower than the lower limit of the turbulence temperature threshold value of -22°C; when air supply, the air supply amount of the height region gradually decreases when the first temperature data is closer to the lower limit of the turbulence temperature threshold value of -22°C, and the air supply of the height region is completely stopped when the first temperature data of the height region is not greater than -22°C; for the height region lower than the lower limit of the turbulence temperature threshold value of -22°C, the air supply is completely stopped.

[0067] The air return state is that each height region needs to perform the air return operation as long as the first data is not at the temperature value of the lower limit of the turbulence temperature threshold value of -22°C, the air return amount is greater when the absolute value of the difference between the first temperature data of each height region and the lower limit of the turbulence temperature threshold value of -22°C is greater, and the air return amount is smaller otherwise, until the temperature of the height region is at -22°C.

[0068] For case four, the first temperature data is all within the turbulence temperature threshold value range, and the air supply and air return work is not actively triggered, but the air supply and air return need to be forcibly started under the refrigeration state, and in this case, as long as the height region does not reach the lower limit of the turbulence temperature threshold value of -22°C, the height region is in the air supply state, and when air supply, the air supply amount of the height region gradually decreases when the first temperature data is closer to the lower limit of the turbulence temperature threshold value of -22°C, and the air supply of the height region is completely stopped when the first temperature data of the height region is not greater than -22°C; similarly, as long as the height region does not reach the lower limit of the turbulence temperature threshold value of -22°C, the air return is also in the forced working state, and the air return is completely stopped when the first temperature data of the height region is not greater than -22°C; the air return amount is greater when the absolute value of the difference between the first temperature data of each height region and the lower limit of the turbulence temperature threshold value of -22°C is greater, and the air return amount is smaller otherwise.

[0069] S3, after the refrigeration is completed, the second temperature data at different height positions inside the refrigeration space is obtained.

[0070] It can be understood that the above steps can further include:

[0071] S301, when the average temperature inside the refrigeration space is not greater than the average temperature threshold value, the refrigeration is completed.

[0072] It can be understood that when the average temperature reaches -20°C, the refrigeration work is completed, that is, the refrigeration mechanism stops working, and in this case, the states of the air return and air supply need to be judged according to the subsequent collected second temperature data.

[0073] S302, acquire second temperature data at different height positions inside the refrigeration space.

[0074] It can be understood that the determination of whether the turbulence operation is stopped is performed after the refrigeration is completed, because before the refrigeration is completed, the air supply and the return air are in a forced working state, and after the refrigeration is completed, the working state of the air supply and the return air is adjusted according to the second temperature data.

[0075] S4, adjust the working state of the turbulence according to the second temperature data.

[0076] The above steps can further include:

[0077] S401, keep the turbulence working in a case that the second temperature data is not within the turbulence temperature threshold.

[0078] It can be understood that when the refrigeration is completed, the temperature of each height region is within the turbulence temperature threshold, in this case, the air supply and the return air can be in a stopped state, and in a case that the temperature data of some height regions is not within the turbulence temperature threshold, the air supply and the return air operation refer to the above description.

[0079] Embodiment three

[0080] Please refer to Figure 6 The embodiment provides a high-position three-dimensional refrigeration house, comprising the refrigeration house temperature adjusting device, and further comprising a refrigeration house main body, and the return air member 1 is arranged on the inner wall of the refrigeration house main body.

[0081] It can be understood that the pipe body 103 of the return air member 1 can be fixed on the inner wall of the refrigeration house main body by a hoop, and a heat preservation plate 4 can be further arranged on the inner wall of the refrigeration house main body, and the heat preservation plate 4 is located between the pipe body 103 and the inner wall of the refrigeration house main body, so that the heat preservation performance of the high-position three-dimensional refrigeration house is improved.

[0082] It can be understood from the above description that the refrigeration house temperature adjusting device and the high-position three-dimensional refrigeration house can well adjust the temperature of each height region position in the refrigeration house, ensure that the temperature of each height region position in the refrigeration house is uniform, and can quickly adjust the temperature of a height region position.

[0083] The above description is only a specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the appended claims.

Claims

1. A cold storage temperature regulating device, characterized by, The adjusting assembly comprises at least two positionally opposite adjusting assemblies, and the working states of the two adjusting assemblies are different, the adjusting assembly comprises a supply air member and a return air member, the supply air member is used for delivering cold air to different height positions of the refrigeration space, and the return air member is assembled on the supply air member and is used for cooperating with the supply air member of the adjusting assembly at the opposite position to perform a turbulence operation when the supply air member is in the working state.

2. The walk-in temperature regulating apparatus of claim 1, wherein, The return air member comprises a return air pipe and a return air fan, the return air fan is assembled on the upper portion of the return air pipe, and the supply air member is in communication with the return air pipe.

3. The walk-in temperature regulating apparatus of claim 2, wherein, The return air pipe comprises a pipe body, a first electric air valve and a plurality of electric proportional valves, a plurality of openings of different height positions are formed in the pipe body, the electric proportional valves are assembled at the corresponding opening positions, and the electric air valve is assembled on the pipe body at a position close to the return air fan.

4. The walk-in temperature regulating apparatus of claim 3, wherein, The pipe body comprises an inner wall layer, an outer wall layer and a heat preservation layer, and the heat preservation layer is located between the inner wall layer and the outer wall layer.

5. The walk-in temperature regulating apparatus of claim 3, wherein, The return air pipe further comprises a defrosting structure, and the defrosting structure is assembled in the pipe body.

6. The walk-in temperature regulating apparatus of claim 5, wherein, The adjusting device further comprises a water pan, and the water pan is assembled at the bottom of the return air member.

7. The walk-in temperature regulating apparatus of claim 6, wherein, The water pan comprises a pan body, an electric heating member and a drain pipe, the pan body is assembled at the bottom of the return air member, the electric heating member is assembled at the inner bottom side of the pan body, and the drain pipe is arranged at the bottom of the pan body.

8. The walk-in temperature regulating apparatus of claim 1, wherein, The supply air member comprises a supply air pipe, a supply air fan and a second electric air valve, the supply air pipe is in communication with the return air member, the supply air fan is assembled in the supply air pipe, and the second electric air valve is assembled on the supply air pipe.

9. The walk-in temperature regulating apparatus of claim 8, wherein, The supply air member further comprises a refrigeration structure, and the refrigeration structure is assembled in the supply air pipe.

10. A high-bay stereoscopic cold store, characterized in that The cold storage temperature adjusting device comprises the cold storage temperature adjusting device in any one of claims 1 to 9, and further comprises a cold storage body, and the return air member is assembled on the inner wall of the cold storage body.