Thermal insulation device of double-spiral-tower quick-freezing storage

Abstract

The utility model relates to the technical field of temperature control equipment, in particular to a thermal insulation device of a double-spiral-tower quick-freezing warehouse, which comprises a cold air source, a thermal insulation plate and a telescopic driving mechanism for driving the thermal insulation plate to unfold, and the cold air source is mounted on the side wall of the quick-freezing warehouse and positioned between a first spiral tower and a second spiral tower. The heat insulation plate is arranged between the cold air source and the first spiral tower, the heat insulation plate comprises at least three layers of hard plastic plates, the adjacent hard plastic plates are in sliding connection, one end of the heat insulation plate and the telescopic driving mechanism are fixed to the side wall of the freezer, and the telescopic end of the telescopic driving mechanism is detachably connected to the free end of the heat insulation plate. The expansion area is changed through stretching and retracting of the heat insulation plate to control the cold source input quantity, and the temperature zoning effect is achieved. According to the utility model, the problem that the appearance defects such as collapse honeycomb and the like are caused by product freezing due to the fact that the freezing environment is consistent and the high-temperature products are suddenly extremely cold and are not uniformly cooled is solved.

Description

Technical Field

[0001] This utility model relates to the field of temperature control equipment technology, specifically to a temperature insulation device for a double-helix tower quick-freezing warehouse. Background Technology

[0002] Currently, food products are commonly cooled using double-spiral tower blast freezers. These freezers are divided into two zones: Spiral Zone 1 and Spiral Zone 2, each equipped with a first and second spiral tower. The first spiral tower is located at the input end of the freezer, and the second spiral tower at the output end. The cold air source is located at the top of the freezer, at the midline between the two spiral towers. Because the cold air source provides the same power to both zones, the freezing environment is consistent in both zones. After the hot pot base is prepared, the hot pot base, still in a high-temperature liquid state, is packaged and then sent to the double-spiral tower blast freezer for cooling. Due to the extremely cold cooling process, the small cubes of base, still in a liquefied state, are cooled rapidly from the corners and outer surface. Because the internal temperature of these small cubes is higher, the cooling is slower, resulting in a large difference in cooling rates between the inside and outside. This causes the grease in the center of the product to collapse, revealing the base underneath and creating honeycomb-like holes on the surface. This severely damages the product's sensory qualities and affects sales.

[0003] Therefore, it is necessary to solve the problem in the existing technology that, due to the uniform freezing environment, the high-temperature products are subjected to uneven cooling due to sudden extreme cold, resulting in appearance defects such as collapse and honeycomb during freezing. Utility Model Content

[0004] The present invention aims to provide a temperature insulation device for a double-helix tower quick-freezing warehouse, in order to solve the problem in the prior art that, due to the uniform freezing environment, high-temperature products are subjected to uneven cooling due to sudden extreme cold, resulting in appearance defects such as collapse and honeycomb during freezing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A temperature insulation device for a double-spiral tower quick-freezing warehouse includes a cold air source, a temperature insulation plate, and a telescopic drive mechanism for driving the temperature insulation plate to unfold. The cold air source is installed on the side wall of the cold warehouse and located between a first spiral tower and a second spiral tower. The temperature insulation plate is disposed between the cold air source and the first spiral tower. The temperature insulation plate includes at least three layers of rigid plastic plates, which are slidably connected to each other. One end of the temperature insulation plate and the telescopic drive mechanism are fixed to the side wall of the cold warehouse. The telescopic end of the telescopic drive mechanism is detachably connected to the free end of the temperature insulation plate.

[0007] The principles and advantages of this scheme are:

[0008] Currently, the temperature in the double-helix blast freezer is uniform, making it highly efficient for freezing conventional non-high-temperature foods. However, it presents significant drawbacks when cooling small cubes of food. Since these cubes are hot oil, when they are directly introduced into the ultra-cold space while still in a liquefied state, they cool rapidly from the corners, resulting in uneven cooling at the center. This uneven cooling causes the oil in the center to collapse, revealing the underlying food and creating honeycomb-like holes on the product surface. Therefore, it is crucial to control the freezing environment of the double-helix blast freezer by dividing it into a slow-cooling zone and an ultra-cold zone; the first helix is ​​the slow-cooling zone, and the second helix is ​​the ultra-cold zone. This solution is designed with temperature control in mind. Since the cold air source is located at the top of the freezer, the space is relatively narrow, which is not conducive to the installation of insulation devices. Therefore, the cold air source, which was originally located at the top of the freezer, is moved to the side wall of the freezer. This provides enough space for the installation of insulation devices without affecting the freezing effect. When a higher temperature is required, the telescopic drive mechanism is controlled to fully extend the insulation panel to reduce the amount of cold air entering the slow cooling zone. When a lower temperature is required, the telescopic drive mechanism is controlled to retract the insulation panel to increase the amount of cold air entering the slow cooling zone.

[0009] The advantage of this solution lies in addressing the root cause of the problem by relocating the cold air source, originally installed at the top of the cold storage, to the side wall. This not only preserves the freezing effect but also facilitates the installation of insulation devices. An insulation plate is installed between the cold air source and the first spiral tower, allowing for temperature control by adjusting the cold air input. This eliminates the need for extensive replacement of cooling equipment and improves product cooling quality. It also solves the problem of uneven cooling of high-temperature products due to extreme cold in a uniform freezing environment, which can lead to defects such as collapse and honeycomb during freezing.

[0010] Preferably, as an improvement, the insulation board is a rectangular strip, divided into a first insulation board, a second insulation board, and a third insulation board. The first and third insulation boards are provided with guide rails at the top and bottom ends of their sides, and the second insulation board is provided with guide blocks at the top and bottom ends of its sides. The first, second, and third insulation boards are slidably connected by the guide rails and guide blocks.

[0011] Taking into account both the installation location of the insulation panels and the air outlet position of the cooling fan, three insulation panels were selected for insulation. The first, second, and third insulation panels are slidably connected via guide rails and guide blocks to ensure high sealing and stability during expansion and contraction. The combination of three layers of rigid plastic panels reduces the weight of the insulation panels. The sliding connection structure is simple and smooth, reducing the probability of mechanical failure. The rigid plastic panels are resistant to low temperatures and corrosion, meeting the harsh requirements of the blast freezer environment.

[0012] Preferably, as an improvement, the right end of the first insulation plate is provided with L-shaped clips on the upper and lower sides, and the upper and lower ends of the second insulation plate are provided with sliding grooves, with the L-shaped clips and sliding grooves being slidably connected.

[0013] When the first insulation plate extends to separate from the second insulation plate, the L-shaped clip engages at the end of the sliding groove of the second insulation plate, causing the second insulation plate to unfold. The sliding connection between the L-shaped clip and the sliding groove further enhances the connection stability between the insulation plates, preventing the connection from loosening due to vibration or environmental factors during use. This improves the reliability of the connection and ensures the stability of the device during long-term operation.

[0014] Preferably, as an improvement, the insulation device includes a temperature control device, which includes a temperature sensor and a temperature controller. The temperature sensor is used to detect the temperature of the spiral zone and transmit the temperature signal to the temperature controller. The temperature controller is used to receive the temperature signal and control the extension length of the telescopic drive mechanism.

[0015] By incorporating a temperature control device, the telescopic drive mechanism's extension and retraction length can be intelligently and precisely adjusted. A sensor detects the temperature in the spiral zone and transmits this signal to a temperature controller. The temperature controller receives the signal and controls the extension and retraction length of the telescopic drive mechanism. This eliminates the need for manual operation of the telescopic drive mechanism, achieving automated temperature control, improving temperature precision, maintaining temperature stability, and ultimately enhancing the cooling quality of the hot pot broth.

[0016] Preferably, as an improvement, the temperature sensor is mounted on the first spiral tower.

[0017] Temperature sensors are installed on the first spiral tower to monitor the temperature near the hot pot base in real time. The close placement of the sensors ensures the accuracy of the temperature data. Based on the accurate temperature data, the insulation plates are dynamically adjusted, improving the control precision and further optimizing the freezing effect of the product.

[0018] Preferably, as an improvement, the telescopic drive mechanism is an electric actuator.

[0019] The electric actuator, acting as a telescopic drive mechanism, enables high-precision opening and closing control of the insulation plate, offering fast response and flexible adjustment. Its compact design allows for installation and operation in limited spaces, making it suitable for the environment described in this solution. It is also simple to operate, has a long service life, and is easy to maintain.

[0020] Preferably, as an improvement, the side wall of the cold storage is provided with a groove, the width of which is greater than the width of the insulation board.

[0021] Considering the stress on the insulation board, if traditional bolts or other connection and fixing methods are used, it is easy to cause local stress concentration and damage to the insulation board. Therefore, a groove with a width greater than the insulation board is provided on the side wall of the cold storage. The insulation board at the end away from the free end is inserted into this groove for fixing. The stress area is larger, the installation is more secure and less prone to damage. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall installation position of the heat insulation device in an embodiment of this utility model.

[0023] Figure 2 This is a top view of the overall installation position of the thermal insulation device according to an embodiment of this utility model.

[0024] Figure 3 This is an explosion diagram of the thermal insulation device according to an embodiment of the present invention.

[0025] Figure 4 This is a side view of the thermal insulation device according to an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram showing the insulation plate of the insulation device in an embodiment of the present invention fully retracted.

[0027] Figure 6 This is a schematic diagram showing the insulation plate of the insulation device in an embodiment of the present invention fully extended. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method:

[0029] The reference numerals in the accompanying drawings include: first spiral tower 1, second spiral tower 2, cold air source 3, air outlet 301, insulation plate 4, first insulation plate 401, second insulation plate 402, third insulation plate 403, fixing component 404, telescopic drive mechanism 5, electric push rod 501, groove 502, temperature control device 6, temperature sensor 601, and temperature controller 602.

[0030] The basic implementation examples are as follows: Figure 1-6 As shown:

[0031] As attached Figure 1 , 2 As shown, a temperature insulation device for a double-spiral tower blast freezer includes a cold air source, a temperature insulation plate 4, and a telescopic drive mechanism 5 for driving the temperature insulation plate 4 to unfold. The cold air source 3 is installed on the side wall of the freezer and located between the first spiral tower 1 and the second spiral tower 2. Originally, the cold air source 3 was installed on the top of the double-spiral tower blast freezer. Considering the need to install the temperature insulation plate 4 to achieve temperature zoning, the cold air source 3 was moved from the top of the double-spiral tower blast freezer to the side wall of the double-spiral tower blast freezer. The temperature insulation plate 4 is set between the cold air source 3 and the first spiral tower 1. It is installed directly from the air outlet 301 of the cold air source 3 between the cold air source 3 and the first spiral tower 1, controlling the cold source input with the shortest control path, thereby quickly achieving the effect of temperature zoning.

[0032] As attached Figure 3As shown, the insulation plate 4 comprises at least three layers of rigid plastic plates, which are slidably connected to each other. The rigid plastic plates are rectangular strips, divided into a first insulation plate 401, a second insulation plate 402, and a third insulation plate 403. The appropriate number is selected based on the available space; in this embodiment, three insulation plates 4 are used. The height of the insulation plates 4 is lower than the conveyor belt at the top of the two spiral towers, avoiding the top conveyor belt and ensuring the normal operation of both the insulation plates 4 and the conveyor belt. When the insulation plates 4 are fully retracted, they do not affect the entry of the cold air source 3 into the first spiral tower 1. When fully extended, they ensure the minimum amount of cold air entering the first spiral tower 1. During use, the extended area of ​​the insulation plates 4 is adjusted according to the required amount of cold air. (See attached diagram.) Figure 4 As shown, the first insulation plate 401 and the third insulation plate 403 are equipped with guide rails at both the top and bottom ends of their sides, and the second insulation plate 402 is equipped with guide blocks at both the top and bottom ends of its sides. The insulation plates 4 are slidably connected through the guide rails and guide blocks to ensure the stability of the insulation plates 4 during the expansion and contraction process. The right end of the first insulation plate 401 is equipped with L-shaped clips on its top and bottom sides, and the top and bottom ends of the second insulation plate 402 are equipped with sliding grooves. The L-shaped clips and sliding grooves are slidably connected. The L-shaped clips and sliding grooves serve to drive the sliding and limit the movement. The side wall of the cold storage is equipped with a groove 502, and the right end of the third insulation plate 403 is fixed in the groove 502.

[0033] The telescopic drive mechanism 5 is an electric actuator 501. The electric actuator 501 requires little installation space, has a fast response speed, flexible adjustment, and stable operation. The electric actuator 501 is fixed to the side wall of the cold storage. The telescopic end of the electric actuator 501 is detachably connected to the first insulation plate 401. A temperature control device 6 is located on the right side of the electric actuator 501. The temperature control device 6 includes a temperature sensor 601 and a temperature controller 602 mounted on the first spiral tower 1. The temperature sensor 601 detects the temperature of the spiral zone and transmits the temperature signal to the temperature controller 602. The temperature controller 602 receives the temperature signal and controls the telescopic length of the electric actuator 501. The temperature controller 602 can employ existing control technologies, such as PLC control technology. When the temperature control device 6 detects a change in the temperature signal of the first spiral tower 1, the electric actuator 501 drives the insulation plate 4 to complete the telescopic action, achieving dynamic adjustment of the cold air flow.

[0034] The specific implementation method is as follows:

[0035] As attached Figure 6As shown, when the product is about to enter the first spiral tower 1, the temperature sensor 601 installed on the first spiral tower 1 sends the temperature to the temperature controller 602. The temperature controller 602 controls the electric push rod 501 to push the first insulation plate 401 according to the temperature. When the L-shaped clips at the upper and lower ends of the right side of the first insulation plate 401 slide to the left end of the slide groove of the second insulation plate 402, the second insulation plate 402 is driven to slide and fully unfold, controlling the amount of cold source entering the area of ​​the first spiral tower 1. The high-temperature small cube hot pot base is slowly cooled in the first spiral tower.

[0036] Temperature sensor 601 measures the temperature in real time, and temperature controller 602 receives the signal in real time to adjust the length of electric push rod 501, thereby controlling the unfolded area of ​​insulation plate 4 and maintaining the temperature of the first spiral tower 1 at the optimal cooling temperature. (See attached...) Figure 5 As shown, when the surface of the small cube hot pot base solidifies to a suitable state, the temperature sensor 601 sends a signal to the temperature controller 602, which controls the electric push rod 501 to push the first insulation plate 401. When the L-shaped clips at the upper and lower ends of the right side of the first insulation plate 401 slide to the right end of the groove of the second insulation plate 402, the insulation plate 401 partially retracts or completely retracts, increasing the amount of cold source entering the spiral tower and accelerating the cooling process. Subsequently, the product enters the second spiral tower 2 for extreme freezing, completing the staged cooling of the small cube hot pot base. This solution, by setting the insulation plate 4 to control the input of the cold source, changes the area with a uniform cooling temperature into a slow cooling zone and an extreme cooling zone, solving the problem in the prior art where, due to a uniform freezing environment, the high-temperature product experiences uneven cooling due to sudden extreme cooling, resulting in appearance defects such as collapse and honeycomb during freezing. This meets the staged cooling requirements of the high-temperature small cube hot pot base.

[0037] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A temperature insulation device for a double-helix tower quick-freezing warehouse, comprising a cold air source, characterized in that: It also includes an insulation plate and a telescopic drive mechanism for driving the insulation plate to unfold. The cold air source is installed on the side wall of the cold storage and located between the first spiral tower and the second spiral tower. The insulation plate is set between the cold air source and the first spiral tower. The insulation plate includes at least three layers of rigid plastic plates, which are slidably connected to each other. One end of the insulation plate and the telescopic drive mechanism are fixed to the side wall of the cold storage. The telescopic end of the telescopic drive mechanism is detachably connected to the free end of the insulation plate.

2. The insulation device for a double-helix tower quick-freezing warehouse according to claim 1, characterized in that: The insulation board is a rectangular strip, divided into a first insulation board, a second insulation board, and a third insulation board. The first and third insulation boards are provided with guide rails at the top and bottom ends of their sides, and the second insulation board is provided with guide blocks at the top and bottom ends of its sides. The first, second, and third insulation boards are slidably connected by the guide rails and guide blocks.

3. The insulation device for a double-helix tower quick-freezing warehouse according to claim 2, characterized in that: The first insulation board has L-shaped clips on the upper and lower sides of its right end, and the second insulation board has sliding grooves on its upper and lower ends. The L-shaped clips and sliding grooves are slidably connected.

4. The insulation device for a double-helix tower quick-freezing warehouse according to claim 3, characterized in that: It also includes a temperature control device, which includes a temperature sensor and a temperature controller. The temperature sensor is used to detect the temperature of the spiral zone 1 and transmit the temperature signal to the temperature controller. The temperature controller is used to receive the temperature signal and control the extension length of the telescopic drive mechanism.

5. The insulation device for a double-helix tower quick-freezing warehouse according to claim 4, characterized in that: The temperature sensor is mounted on the first spiral tower.

6. The insulation device for a double-helix tower quick-freezing warehouse according to claim 5, characterized in that: The telescopic drive mechanism is an electric actuator.

7. The insulation device for a double-helix tower quick-freezing warehouse according to claim 6, characterized in that: The side wall of the cold storage is provided with a groove, the width of which is greater than the width of the insulation board.

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