A walk-through heating system for a cold store

Abstract

The application relates to a cold storage passageway heating system and relates to the technical field of cold storage, which comprises a cold storage area, a buffer area and a passageway area, the buffer area is located between the cold storage area and the passageway area, a protective door is arranged on one side of the cold storage area close to the buffer area, and a heat supply assembly is arranged in the ground of the buffer area; the heat supply assembly comprises a heating cable and a power line, one end of the heating cable is connected with the power line, the other end of the heating cable is arranged on the ground of the buffer area in a distribution mode and forms a loop with the power line, a control box is arranged on the wall of the buffer area, and the power line is electrically connected with the control box. The application has the effect that the ground temperature between the cold storage area and the passageway area is controlled in a suitable range, dew and frost are avoided, the safety of forklifts and personnel passing is ensured, and the cargo carrying efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of cold storage, and in particular to a cold storage through-hall heating system. Background Technology

[0002] In the cold chain logistics and food storage sectors, cold storage facilities, as low-temperature storage facilities, typically maintain an internal temperature below -18℃. The passageway, serving as a transition zone between the cold storage and the outside environment, is used for loading and unloading goods, and its temperature is generally controlled between 0-10℃. Due to the temperature difference between the cold storage and the passageway, when the passageway connects with the outside environment, warm, humid air entering the passageway encounters the cooler ground and walls, easily causing condensation. In winter or when the passageway temperature remains low, the moisture may even condense into frost. Because the passageway floor becomes slippery after condensation and frost, it poses a significant safety hazard for forklifts and handling workers who frequently enter and exit, easily leading to slips, collisions, and other accidents, affecting the efficiency of goods handling and personnel safety. Utility Model Content

[0003] To address the issue that the passageway, located in the transition zone between the cold storage and the outside world, becomes slippery after condensation and frost, making it easy for forklifts and handling workers to slip and collide, thus affecting handling efficiency and personnel safety, this application provides a cold storage passageway heating system.

[0004] This application provides a cold storage concourse heating system, which adopts the following technical solution:

[0005] A cold storage through-hall heating system includes a cold storage area, a buffer zone, and a through-hall area. The buffer zone is located between the cold storage area and the through-hall area. A protective door is provided on the side of the cold storage area closest to the buffer zone. A heating assembly is installed inside the floor of the buffer zone.

[0006] The heating component includes a heating cable and a power cord. One end of the heating cable is connected to the power cord, and the other end is arranged on the ground of the buffer zone and forms a loop with the power cord. A control box is installed on the wall of the buffer zone, and the power cord is electrically connected to the control box.

[0007] By adopting the above technical solutions, the partitioning of the cold storage area, buffer zone, and passageway creates a transitional space from low temperature to normal temperature. The temperature difference between the cold storage and the external environment is buffered and transitioned in the buffer zone, effectively reducing direct heat exchange. Protective doors effectively prevent excessive cold air from the cold storage area from spreading to the buffer zone. The heating components inside the buffer zone floor connect heating cables to a control box via power lines, forming a loop. Under the control of the control box, the floor can be heated, increasing the temperature of the buffer zone floor and reducing the condensation or frost formation of hot, humid air from the outside. This fundamentally solves the problem of slippery floors, ensuring the safety of forklifts and personnel entering and exiting, and improving the efficiency of goods handling.

[0008] Optionally, the heating assembly further includes a temperature control sensor wire and a temperature probe. The temperature probe is connected to the temperature control sensor wire and is installed on the ground of the buffer zone. The temperature probe and the heating cable are on the same horizontal plane, and the control box is electrically connected to the other end of the temperature control sensor wire.

[0009] By adopting the above technical solution, the temperature probe is installed on the ground in the buffer zone and at the same level as the heating cable. This allows for accurate monitoring of the actual ground temperature, and the temperature information is transmitted to the control box via a temperature control sensor line. The control box automatically adjusts the operating status of the heating cable according to the set temperature range. When the ground temperature is lower than the set value, the heating cable is activated to start heating; when the temperature reaches the set value, heating stops, ensuring the ground temperature remains within a suitable range, preventing condensation and frost, reducing energy waste, and improving the system's energy efficiency.

[0010] Optionally, the buffer zone is provided with reserved holes around it, and the temperature control sensing wire passes through the reserved holes.

[0011] By adopting the above technical solution, the reserved hole provides a dedicated channel for the arrangement of temperature control sensor wires, so that the temperature control sensor wires can extend from the temperature probe on the ground to the control box on the wall in an orderly manner, protecting the temperature control sensor wires, extending their service life, and facilitating later maintenance and repair.

[0012] Optionally, multiple pipe clamps are arranged on the heating cable to fix the heating cable to the ground of the buffer zone.

[0013] By adopting the above technical solution, multiple pipe clamps can fix the heating cable inside the ground of the buffer zone, preventing the heating cable from shifting, loosening or tangling due to ground stress, temperature changes and other factors during long-term use. This ensures that the heating effect is consistent in all areas of the ground, avoids local temperatures that are too high or too low, and ensures that the entire buffer zone ground can effectively prevent condensation and frost.

[0014] Optionally, the floor level of the cold storage area is higher than the floor level of the passageway area.

[0015] By adopting the above technical solution, the floor of the cold storage area is higher than the floor of the passageway area, forming a certain height difference. When there is water accumulation in the passageway area or a small amount of liquid appears due to accident, the liquid is less likely to flow into the cold storage area due to the height difference, thus avoiding the cold storage area floor being affected by water ingress. At the same time, it also reduces the possibility of liquid accumulating on the floor of the buffer zone, reduces the risk of condensation on the floor of the buffer zone, and further ensures the stable operation of the system.

[0016] Optionally, heat preservation zones are provided on both sides of the buffer zone.

[0017] By adopting the above technical solutions, the insulation zone can effectively block the heat exchange between the buffer zone and the external environment, reducing the impact of high or low external temperatures on the temperature of the buffer zone.

[0018] Optionally, the protective door includes a sliding door and a roll-up door. The sliding door is slidably disposed along a guide rail at the connection between the cold storage area and the buffer zone, and the roll-up door is installed on the side of the sliding door closer to the cold storage area.

[0019] By adopting the above technical solutions, the roller shutter door and the sliding door form a double protection, which enhances the isolation effect between the cold storage area and the buffer zone, reduces the heat exchange between the cold storage area and the buffer zone, and helps to maintain the temperature stability of the buffer zone. The roller shutter door can be opened and closed quickly, which is suitable for situations with high frequency of goods entering and leaving. The sliding door slides along the guide rail, opens and closes smoothly, and can further prevent the low temperature of the cold storage area and the heat of the buffer zone from being transferred to each other.

[0020] Optionally, a rotating rod is installed at the top of the side of the cold storage area near the sliding door. One end of the rotating rod is connected to a driving component to drive the rotating rod to rotate. A roller shutter is wound around the rotating rod. Tracks are provided on both sides of the cold storage area, and the free end of the roller shutter is slidably disposed in the track.

[0021] By adopting the above technical solution, the drive component drives the rotating rod to rotate, causing the roller shutter to move up and down within the slide rail, thus realizing the opening and closing of the roller shutter door. The slide rail guides and limits the free end of the roller shutter, ensuring smooth lifting and lowering. When closed, it can tightly fit the connection, enhancing the sealing performance and effectively preventing low temperature from entering the buffer zone of the cold storage area. It is suitable for scenarios with frequent forklift and goods entry and exit, improving the efficiency of goods handling while also ensuring the protective effect.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. This cold storage through-hall heating system uses a partitioned structure of cold storage area, buffer zone, and through-hall area. It reduces heat exchange between the cold storage area and the buffer zone by using protective doors. At the same time, the heating cables, control box, and power cord of the heating components heat the floor of the buffer zone, increasing the floor temperature. This ultimately prevents condensation and frost on the floor of the through-hall area and the buffer zone due to temperature differences, eliminating safety hazards for forklifts and handling personnel, reducing the occurrence of slips, collisions, and other accidents, and ensuring personnel safety and cargo handling efficiency.

[0024] 2. The temperature probe monitors the ground temperature of the buffer zone in real time and transmits the signal to the control box via a temperature control sensor line. The control box automatically adjusts the working status of the heating cable according to preset parameters, achieving precise control of the ground temperature of the buffer zone. This realizes intelligent and automated control of the ground temperature of the buffer zone, avoiding the lag and error of manual adjustment, and ensuring that the ground temperature is always higher than the air dew point temperature, fundamentally preventing condensation and frost. At the same time, through real-time monitoring and on-demand heating, the ineffective working time of the heating cable is reduced, ensuring that the ground temperature of the buffer zone remains stable within a reasonable range to prevent condensation and frost, while also reducing ineffective energy consumption. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0026] Figure 2 This is a top view of an embodiment of this application;

[0027] Figure 3 yes Figure 2 Sectional view of AA;

[0028] Figure 4 This is a construction schematic diagram of the heating component within the buffer zone in an embodiment of this application;

[0029] Figure 5 This is a cross-sectional view of the drive component on the roll-up door in an embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Cold storage area; 2. Buffer zone; 21. Insulated area; 3. Passage area; 4. Heating components; 41. Heating cable; 411. Pipe clamp; 42. Control box; 43. Power cord; 44. Temperature control sensor wire; 45. Temperature probe; 46. Anti-collision post; 5. Protective door; 51. Sliding door; 52. Roller shutter; 521. Rotating rod; 522. Housing; 523. Motor; 524. First bevel gear; 525. Second bevel gear; 526. Roller shutter; 527. Output shaft. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0036] This application discloses a cold storage through-hall heating system. (Refer to...) Figures 1-4 The cold storage through-hall heating system includes a cold storage area 1, a buffer zone 2 and a through-hall area 3. The buffer zone 2 is located between the cold storage area 1 and the through-hall area 3. A protective door 5 is installed on the side of the cold storage area 1 closest to the buffer zone 2. A heating component 4 is installed inside the floor of the buffer zone 2.

[0037] The heating component 4 includes a heating cable 41, a control box 42, and a power cord 43. One end of the heating cable 41 is connected to the power cord 43, and the other end is arranged on the ground of the buffer zone 2 and forms a loop with the power cord 43. The control box 42 is installed on the wall of the buffer zone 2, and the power cord 43 is electrically connected to the control box 42.

[0038] In this cold storage through-hall heating system, cold storage area 1 generally needs to maintain a low temperature environment below -18℃ for long-term storage of goods requiring freezing. Buffer zone 2, located between cold storage area 1 and through-hall area 3, serves as a temperature transition zone, accommodating the low temperature environment of cold storage area 1 and the normal temperature environment (or fluctuating temperature) of through-hall area 3. The temperature of buffer zone 2 is regulated by heating components 4 on the floor, breaking the direct temperature difference between cold storage area 1 and through-hall area 3. Active heating maintains the floor temperature within a reasonable range, preventing condensation and frost formation on the floor after hot and humid air enters. This spatial layout isolates the extreme low temperature of cold storage area 1 from the external environment of through-hall area 3.

[0039] The passageway 3 serves as a transitional aisle for loading and unloading goods, and is the necessary area for forklifts and handling personnel to enter and exit the cold storage area 1. Passageway 3 is directly connected to the external environment, providing operational space for loading and unloading. The partitioning of passageway 3 and buffer zone 2 allows hot and humid outside air to first enter passageway 3 and then slowly permeate into buffer zone 2, reducing the direct impact of hot and humid air on cold storage area 1. Simultaneously, the heating function of buffer zone 2 reduces the risk of condensation caused by the temperature difference between passageway 3 and buffer zone 2.

[0040] By opening or closing the protective door 5, airflow between the cold storage area 1 and the buffer zone 2 can be controlled. Closing the protective door 5 prevents a large influx of cold air from the cold storage area 1 into the buffer zone 2, while simultaneously reducing the amount of heat from the buffer zone 2 entering the cold storage area 1. The protective door 5 enhances the airtightness between the cold storage area 1 and the buffer zone 2, reduces the efficiency of heat exchange between them, and makes the temperature of the buffer zone 2 easier to control through the heating component 4, preventing the buffer zone 2 from becoming too cold and frosting due to cold air leakage from the cold storage area 1.

[0041] Heating cable 41 is the heating element, generating heat by energizing it. The heating cable 41 is evenly distributed within the ground of buffer zone 2, directly heating the ground and raising its temperature. Through heat transfer, the heating cable 41 raises the ground temperature of buffer zone 2 above the air dew point temperature, reducing the condensation of dew or frost due to temperature differences when hot, humid air contacts the ground, fundamentally solving the problem of slippery ground and ensuring the ground remains dry.

[0042] The control box 42 serves as the control center for the heating component 4. It receives signals and controls the on / off state and power adjustment of the heating cable 41, enabling intelligent control of the heating process. The power cord 43 connects the heating cable 41 to the control box 42, forming a complete power supply circuit. It transmits electrical energy to the heating cable 41, acting as the channel for energy flow from the control box 42 to the heating cable 41, ensuring a stable power supply and a continuous and stable heating process. The circuit design ensures efficient energy transmission and reduces power loss.

[0043] This cold storage through-hall heating system employs a partitioned structure consisting of cold storage area 1, buffer zone 2, and through-hall area 3. With buffer zone 2 as the core, a protective door 5 reduces heat exchange between cold storage area 1 and buffer zone 2. Simultaneously, the heating components 4, including heating cables 41, control box 42, and power cord 43, heat the floor of buffer zone 2, raising its temperature. This prevents condensation and frost formation on the floor between through-hall area 3 and buffer zone 2 due to temperature differences, eliminating safety hazards for forklifts and handling personnel, reducing slips and collisions, and ensuring personnel safety and efficient cargo handling. Furthermore, the combination of partitioned design and heating control ensures effective anti-condensation while reducing energy waste, adapting to the complex working environment of the cold storage through-hall, and improving the safety and stability of cargo loading and unloading in cold chain logistics.

[0044] The heating component 4 also includes a temperature control sensor wire 44 and a temperature probe 45. The temperature probe 45 is connected to the temperature control sensor wire 44 and is installed on the ground in the buffer zone 2. The temperature probe 45 and the heating cable 41 are on the same horizontal plane. The control box 42 is electrically connected to the other end of the temperature control sensor wire 44. The temperature probe 45 directly contacts the ground and detects its real-time temperature, converting the physical quantity of temperature into a transmittable electrical signal. Since the temperature probe 45 and the heating cable 41 are on the same horizontal plane, it can accurately reflect the actual ground temperature under the action of the heating cable 41. To reduce temperature misjudgment caused by detection position deviation, the temperature probe 45 is placed in the middle area of ​​the coiled heating cable 41. In this application, the temperature probe 45 is made of a metal material with good thermal conductivity. The high thermal conductivity of the metal material ensures that the temperature probe 45 can quickly and sensitively capture subtle changes in ground temperature, prompting the control box 42 to react quickly and avoid excessively high or low temperatures. This prevents condensation and frost from forming on the ground due to unsuitable temperature, keeps the ground dry, and reduces safety hazards.

[0045] The temperature control sensor line 44 serves as the transmission carrier for temperature signals, stably transmitting the ground temperature signal of buffer zone 2 detected by temperature probe 45 to control box 42. This allows control box 42 to obtain the actual temperature status of the ground in buffer zone 2 in a timely and accurate manner, providing data for the start / stop or power adjustment of heating cable 41. Control box 42 can receive the temperature signal transmitted by temperature control sensor line 44, compare it with a preset temperature threshold, and automatically control the working state of heating cable 41 based on the comparison result, such as heating when powered on or stopping when powered off, reducing the ineffective operation of heating cable 41.

[0046] The temperature control sensor line 44, temperature probe 45, control box 42, heating cable 41, and power cord 43 work together to form a complete temperature monitoring and automatic control system. Specifically, the temperature probe 45 detects the ground temperature of buffer zone 2 in real time and transmits the signal to the control box 42 through the temperature control sensor line 44. The control box 42 automatically adjusts the working state of the heating cable 41 according to preset parameters, achieving precise control of the ground temperature of buffer zone 2. This realizes intelligent and automated control of the ground temperature of buffer zone 2, avoiding the lag and error of manual adjustment, and ensuring that the ground temperature is always higher than the air dew point temperature, fundamentally preventing condensation and frost. At the same time, through real-time monitoring and on-demand heating, the ineffective working time of the heating cable 41 is reduced, ensuring that the ground temperature of buffer zone 2 is stable within a reasonable range to prevent condensation and frost, reducing ineffective energy consumption, improving the intelligence and energy efficiency of the system, and further ensuring the passage safety and cargo handling efficiency of the cold storage passage area 3.

[0047] The temperature control sensor wire 44 is laid in a conduit on the ground of the buffer zone 2, which avoids the temperature control sensor wire 44 being exposed and damaged, ensuring the integrity of the line and the stability of signal transmission. The heating cable 41 is laid in the heat storage concrete. The heating cable 41 provides heat to the ground of the buffer zone 2 by generating heat when energized. The heat storage concrete can evenly distribute the heat and continuously act on the ground, maintaining a stable ground temperature. In this application, the heating power of the heating cable 41 is less than or equal to 18W / h. The low heating power can meet the requirements of preventing condensation and frosting, save energy, prevent energy waste caused by overheating, and effectively solve the problem of condensation and frosting on the ground due to low temperature.

[0048] Pre-drilled holes are provided around the buffer zone 2. The temperature control sensor wire 44 and the power line 43 that forms a loop with the heating cable 41 are passed through the pre-drilled holes. The pre-drilled holes provide a passage for the temperature control sensor wire 44 and the power line 43, and play a role in positioning and protecting the temperature control sensor wire 44 and the power line 43, making the laying more orderly, avoiding messy lines, preventing the lines from being accidentally damaged, ensuring that the temperature signal transmission is not affected, and ensuring that the control box 42 can receive temperature information normally, thereby maintaining the stable operation of the heating system and reducing the possibility of condensation and frost.

[0049] Multiple pipe clamps 411 are arranged on the heating cable 41 to fix the heating cable 41 to the ground of the buffer zone 2. The pipe clamps 411, as fixing components, connect the heating cable 41 to the ground of the buffer zone 2 through their structure, restricting the movement of the heating cable 41 and providing a stable constraint. This prevents the heating cable 41 from shifting, stacking, or detaching from the ground due to external factors during use, ensuring that the heating cable 41 is always in the preset installation position. Under the fixing effect of the pipe clamps 411, the heating cable 41 can stably transfer heat to the ground, making the ground area evenly heated and avoiding insufficient heating due to its own positional changes. This maintains the ground temperature in a state where condensation and frost are unlikely to form, ensuring the ground remains dry.

[0050] Several anti-collision posts 46 are installed in both the passageway 3 and the buffer zone 2. The anti-collision posts 46 in the passageway 3 block or buffer external impact forces through their own structure, providing protection for the facilities and passage area of ​​the passageway 3 and maintaining the normal operation order of the passageway 3. The anti-collision posts 46 in the buffer zone 2 rely on their own structure to resist impacts from the inside or outside, protecting the ground, walls and other structures of the buffer zone 2. This can reduce the degree of damage caused by collisions when forklifts enter or exit the buffer zone 2, protect the ground facilities and wall structure of the buffer zone 2, ensure the integrity of the buffer zone 2, and ensure its normal function.

[0051] After the heating components 4 are laid in buffer zone 2, concrete is poured to enclose the heating cables 41 and other components, forming a solid ground structure. This provides a foundation for fixing and protecting the components, and the resulting overall ground structure disperses external pressure, reducing direct impact on the internal components. During concrete pouring, it is crucial to ensure the heating cables 41 and other components are intact. Their good condition ensures normal heating function after the concrete solidifies, guaranteeing the ground temperature meets requirements and preventing damage that could affect the heating effect.

[0052] refer to Figure 2 and Figure 3 The floor level of cold storage area 1 is higher than that of passageway area 3. The temperature in cold storage area 1 is significantly lower than in passageway area 3. Cold air, being denser, sinks, while hot air rises. This height difference creates a physical barrier, reducing the direct flow of cold air from cold storage area 1 to passageway area 3, while simultaneously preventing hot air (or humid air infiltrating from outside) from passageway area 3 from entering cold storage area 1. This reduces the load on the refrigeration system of cold storage area 1, saving energy. Furthermore, the height difference between the floors of cold storage area 1 and passageway area 3 guides the direction of liquid flow through gravity, allowing each area to fulfill its respective load-bearing and containment functions. This effectively prevents liquid from entering cold storage area 1, reducing liquid accumulation in unintended areas, keeping cold storage area 1 and related work areas dry, minimizing problems caused by liquids, and ensuring smooth operation.

[0053] Within buffer zone 2, on the ground not where heating components 4 are located, anti-slip components are installed, or the corresponding ground surface undergoes anti-slip treatment. In this application, a rigid nylon sheet of a certain thickness is used. Due to the properties of its material, the anti-slip component increases the friction between the ground and the contacting object, reducing slippage when forklifts or personnel move on the ground. The anti-slip component itself has a certain thickness, maintaining structural stability and resisting deformation under pressure, ensuring effective anti-slip function.

[0054] Both sides of the buffer zone 2 are equipped with insulation zones 21, each containing insulation components, which can be polyurethane sandwich panels. The insulation zones 21 provide installation space for the insulation components, forming a protective area surrounding the buffer zone 2. This spatially isolates the buffer zone 2 from the external environment. The insulation components have excellent thermal insulation properties, blocking heat transfer and reducing direct heat exchange between the buffer zone 2 and the external environment. This prevents excessive impact from external temperature fluctuations on the buffer zone 2, helps maintain a stable internal temperature within the buffer zone 2 and keeps it within the range required to prevent condensation and frost, ensuring the ground of the buffer zone 2 remains dry and improving the safety and stability of the entire area.

[0055] Furthermore, in this application, references Figures 2-5 The protective door 5 includes a sliding door 51 and a roll-up door 52. The sliding door 51 is slidably installed along a guide rail at the connection between the cold storage area 1 and the buffer zone 2. The roll-up door 52 is installed on the side of the sliding door 51 closer to the cold storage area 1. The sliding door 51 can be opened or closed by sliding, directly controlling the passage between the cold storage area 1 and the buffer zone 2, quickly responding to passage needs. When closed, it can block the airflow between the two areas, reducing the diffusion of cold energy from the cold storage area 1 to the buffer zone 2 and the entry of heat from the buffer zone 2 into the cold storage area 1, thus helping to maintain the temperature stability of the two areas.

[0056] The guide rail provides a sliding path for the sliding door 51, restricts the direction of movement of the sliding door 51, ensures that the sliding door 51 can slide smoothly along a fixed track, and enables the sliding door 51 to close accurately in a preset position, thereby enhancing the sealing performance when closed.

[0057] The roll-up door 52 can be opened or closed by rolling up or lowering. As a protective barrier near the cold storage area 1, the roll-up door 52 assists the sliding door 51 in enhancing the isolation effect between the cold storage area 1 and the buffer zone 2. In addition, the roll-up and lowering opening and closing method occupies little space and can quickly open the passage for easy passage. When closed, it works with the sliding door 51 to further block airflow and heat exchange between the cold storage area 1 and the buffer zone 2, strengthening the temperature isolation effect and making it easier to maintain a stable temperature in the two areas, avoiding problems such as condensation and frost caused by temperature fluctuations.

[0058] A rotating rod 521 is installed at the top of the side of the cold storage area 1 near the sliding door 51. One end of the rotating rod 521 is connected to a driving component to drive the rotating rod 521 to rotate. A roller blind 526 is wound around the rotating rod 521. Tracks are provided on both sides of the walls of the cold storage area 1, and the free end of the roller blind 526 is slidably disposed within the track. Wrappers that cooperate with the track are provided on both sides of the roller blind 526 near the track. The rotating rod 521 is used to wind the roller blind 526, providing support and power transmission for the movement of the roller blind 526. Driven by the driving component, it rotates, thereby realizing the rolling up or lowering of the roller blind 526. A housing 522 is installed at the top of the cold storage area 1. The rotating rod 521 and the roller blind 526 wound around the rotating rod 521 are both disposed within the housing 522. The housing 522 has an opening to allow the free end of the roller blind 526 to slide within the track.

[0059] The driving component provides rotational power to the rotating rod 521, controls the rotation direction and speed of the rotating rod 521, and thus controls the rolling up or lowering action of the roller shutter 526. The operation is more convenient and efficient, and can quickly respond to the opening or closing needs, reducing the trouble of manual operation, while ensuring the stability of the rotation of the rotating rod 521.

[0060] refer to Figure 5 The driving component can be a motor 523, a first bevel gear 524, and a second bevel gear 525. The motor 523 is installed on the wall of the cold storage area 1 or on the outside of the housing 522. The motor 523 drives the output shaft 527 to rotate. The first bevel gear 524 is coaxially sleeved on the output shaft 527. The second bevel gear 525 is meshed with the first bevel gear 525 for transmission. The second bevel gear 525 is coaxially sleeved on the rotating rod 521 to drive the rotating rod 521 to rotate, thereby enabling the roller shutter 526 mounted on the rotating rod 521 to perform the rolling or lowering operation.

[0061] The slide rail provides a sliding path for the free end of the roller shutter 526, restricting the direction of movement of the roller shutter 526 and ensuring that the roller shutter 526 moves up and down along a fixed track. The roller shutter 526 moves up and down along the slide rail as the rotating rod 521 rotates. When lowered, it can block the passage of the cold storage area 1 near the sliding door 51, blocking the air circulation between the cold storage area 1 and the outside. When rolled up, it opens the passage for easy passage without affecting the handling of goods and the entry and exit of personnel, thus balancing protection and ease of passage. The cover plate works in conjunction with the slide rail to fill the gap between the roller shutter 526 and the slide rail, enhancing the fit between the two and further improving the sealing performance of the roller shutter 526 when closed. This reduces the air circulation and heat exchange through the gap, making it less likely for the cold energy of the cold storage area 1 to leak out, thus strengthening the protective effect.

[0062] The implementation principle of a cold storage through-chamber heating system according to an embodiment of this application is as follows:

[0063] The system is divided into three zones: cold storage zone 1, buffer zone 2, and passage zone 3. Cold storage zone 1 serves as the core of low-temperature storage, and its ground level is higher than that of passage zone 3 to create a height difference and prevent liquid backflow. Buffer zone 2 is located between the two zones, with insulation zones 21 set on both sides. The polyurethane sandwich panels in insulation zones 21 play a role in heat insulation, reducing heat exchange between buffer zone 2 and the outside.

[0064] A rotating rod 521 is installed at the top of the cold storage area 1. One end of the rotating rod 521 is connected to a drive unit, and a roller shutter 526 is wound around the rotating rod 521. The slide rail on the wall of the cold storage area 1 near the sliding door 51 provides a movement path for the roller shutter 526. The flaps on both sides of the roller shutter 526 cooperate with the slide rail to enhance the sealing performance. At the same time, the sliding door 51 slides along the guide rail, forming a double barrier with the roller shutter 52, further reducing the heat exchange between the cold storage area 1 and the buffer zone 2.

[0065] Heating cables 41 are laid inside the ground of buffer zone 2 and fixed in position with pipe clamps 411. During concrete pouring, the integrity of components such as heating cables 41 is ensured, and the concrete provides stable protection after solidification. In heating component 4, temperature probes 45 and heating cables 41 are at the same horizontal plane to monitor the ground temperature in real time. The signal is transmitted to control box 42 via temperature control sensor lines 44 embedded in pre-drilled holes. Control box 42 adjusts the operation of heating cables 41 according to a preset temperature range. When the ground temperature is lower than the set value, heating cables 41 are energized to generate heat, which is transferred to the ground through the concrete, raising the ground temperature. Heating stops when the temperature reaches the set value.

[0066] The passageway 3 serves as a cargo loading and unloading channel, working in conjunction with the buffer zone 2 to allow for a gradual transition of hot and humid air from the outside. Meanwhile, the anti-collision posts 46 installed in the passageway 3 and the buffer zone 2 reduce collision damage, and the hard nylon board on the non-heated component 4 floor of the buffer zone 2 enhances its anti-slip performance.

[0067] Through the coordinated efforts of the above components, the ground temperature in buffer zone 2 is kept within a suitable range, preventing condensation and frost, ensuring the safety of forklifts and personnel, and improving the efficiency of cargo handling.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cold storage through-hall heating system, characterized in that: It includes a cold storage area (1), a buffer zone (2) and a passageway (3). The buffer zone (2) is located between the cold storage area (1) and the passageway (3). A protective door (5) is provided on the side of the cold storage area (1) near the buffer zone (2). A heating assembly (4) is provided inside the ground of the buffer zone (2). The heating component (4) includes a heating cable (41) and a power cord (43). One end of the heating cable (41) is connected to the power cord (43), and the other end is arranged on the ground of the buffer zone (2) and forms a loop with the power cord (43). A control box (42) is provided on the wall of the buffer zone (2), and the power cord (43) is electrically connected to the control box (42).

2. The cold storage through-hall heating system according to claim 1, characterized in that: The heating component (4) also includes a temperature control sensing line (44) and a temperature probe (45). The temperature probe (45) is connected to the temperature control sensing line (44). The temperature probe (45) is installed on the ground of the buffer zone (2). The temperature probe (45) and the heating cable (41) are on the same horizontal plane. The control box (42) is electrically connected to the other end of the temperature control sensing line (44).

3. The cold storage through-hall heating system according to claim 2, characterized in that: The buffer zone (2) is surrounded by reserved holes, and the temperature control sensing line (44) passes through the reserved holes.

4. The cold storage through-hall heating system according to claim 1, characterized in that: Multiple pipe clamps (411) are arranged on the heating cable (41) to fix the heating cable (41) to the ground of the buffer zone (2).

5. The cold storage through-hall heating system according to claim 1, characterized in that: The ground level of the cold storage area (1) is higher than the ground level of the passageway area (3).

6. The cold storage through-hall heating system according to claim 1, characterized in that: Both sides of the buffer zone (2) are provided with heat preservation areas (21).

7. The cold storage through-hall heating system according to claim 1, characterized in that: The protective door (5) includes a movable door (51) and a roll-up door (52). The movable door (51) is slidably disposed along the guide rail at the connection between the cold storage area (1) and the buffer zone (2). The roll-up door (52) is installed on the side of the movable door (51) near the cold storage area (1).

8. The cold storage through-hall heating system according to claim 7, characterized in that: A rotating rod (521) is installed on the top of the side of the cold storage area (1) near the movable door (51). One end of the rotating rod (521) is connected to a driving component to drive the rotating rod (521) to rotate. A roller shutter (526) is wound around the rotating rod (521). Slide tracks are provided on both sides of the walls of the cold storage area (1). The free end of the roller shutter (526) is slidably disposed in the slide track.

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