Low-temperature high-humidity thawing equipment
By using heat dissipation components and condensate recovery components in low-temperature and high-humidity thawing equipment, the problem of steam directly contacting frozen meat is solved, achieving a safe, hygienic thawing process and cost-effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG HIGHER MACHINERY
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-24
AI Technical Summary
In existing low-temperature and high-humidity thawing equipment, industrial steam directly contacts frozen meat, causing the surface temperature to rise rapidly while the internal temperature remains low. This provides a suitable environment for bacterial growth, and the chemicals and impurities in the steam may enter the meat, threatening human health.
It employs heat dissipation components and condensate recovery components, dissipating steam heat through heat dissipation pipes and fins to prevent steam from directly contacting frozen meat, and uses a temperature and humidity control system to precisely regulate the temperature and humidity of the defrosting chamber, while a condensate recovery mechanism is set up to block heat exchange.
It effectively avoids contamination of frozen meat, ensures the safety and hygiene of the thawing process, reduces production costs, and ensures precise temperature and humidity control during the thawing process.
Smart Images
Figure CN224539353U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of thawing equipment technology, specifically relating to a low-temperature, high-humidity thawing device. Background Technology
[0002] Frozen meat is an important form of raw material storage for the current meat and meat processing industry. It is also a key means for national reserves and market regulation, and a major product form for meat import and export trade and domestic inter-regional circulation. Frozen meat is typically stored at temperatures between -23℃ and -18℃, therefore it needs to be thawed before processing and consumption. There are many methods for thawing frozen meat, among which using industrial steam is a common method, specifically achieved through low-temperature, high-humidity thawing equipment. This equipment utilizes low-temperature circulating steam technology to gradually raise the temperature inside the thawing chamber to 0℃~4℃. At this temperature, the growth and reproduction of bacteria and other microorganisms are inhibited, thus reducing food safety risks. The steam pipes within the equipment are distributed within the cabinet, with low-pressure steam ejected from side holes. Simultaneously, a fan is activated, promoting gas circulation within the thawing chamber, converting the steam into a mist that evenly covers the surface of the frozen meat, achieving rapid thawing.
[0003] However, this thawing method also has drawbacks. If industrial steam is directly discharged into the thawing chamber, it can cause the surface temperature of the meat to rise rapidly while the internal temperature remains low. This temperature difference provides a suitable environment for bacterial growth. More importantly, direct contact between industrial steam and frozen meat can cause chemicals and impurities from the industrial steam to enter the frozen meat, posing a potential threat to human health. Therefore, it is necessary to improve the existing technology to solve the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this invention is to provide a low-temperature, high-humidity thawing device to solve the problems mentioned in the background art.
[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows: A low-temperature, high-humidity defrosting device includes a cabinet with ventilation holes through the side wall of the cabinet. A fan is fixedly installed on the top wall of the cabinet. A heat dissipation component is fixedly installed inside the cabinet. The heat dissipation component has an input end and an output end for introducing steam and circulating it inside the heat dissipation component. The heat dissipation component is positioned in the path of the airflow generated by the fan and heats the airflow generated by the fan.
[0006] The input end of the heat dissipation component is connected to a temperature control system, and the output end of the heat dissipation component is connected to a condensate recovery component.
[0007] As a further improvement, the heat dissipation component includes heat dissipation pipes and multiple parallel and evenly spaced heat dissipation fins. A heat dissipation channel is formed between adjacent heat dissipation fins for the airflow blown out by the fan to pass through. The heat dissipation pipes pass through the heat dissipation fins and are tightly connected to the heat dissipation fins.
[0008] As a further improvement, the heat pipes are continuously bent to form a structure consisting of multiple straight pipes and multiple bent pipes, with the straight pipes penetrating the heat dissipation fins.
[0009] As a further improvement, the temperature control system includes temperature sensors installed at different locations in the defrosting chamber, and solenoid valves connected to the input end of the heat sink pipes. Both the temperature sensors and the solenoid valves are connected to a PLC.
[0010] As a further improvement, the condensate recovery assembly includes a recovery manifold located below the heat dissipation assembly. The recovery manifold connects to multiple heat dissipation pipes and is inclined. The recovery manifold includes an input end and an output end, with the output end of the recovery manifold positioned lower than the input end.
[0011] As a further improvement, the condensate recovery assembly also includes a water tank with an openable and closable top cover. The output end of the recovery manifold passes through the side wall of the water tank and extends into the interior of the water tank. The output end of the recovery manifold is submerged below the liquid surface in the water tank to form a liquid seal.
[0012] As a further improvement, an overflow hole is provided through one side wall of the water tank, and the output end of the recovery main pipe is located lower than the position of the overflow hole.
[0013] As a further improvement, a humidity control system is also included, which includes humidity sensors installed at different locations in the defrosting chamber and a humidifier installed above the interior of the defrosting chamber. Both the humidity sensors and the humidifier are connected to a PLC.
[0014] Due to the adoption of the above technical solution, the beneficial technical effects of this utility model are as follows: This invention provides a low-temperature, high-humidity thawing device that injects steam into a heat dissipation component and utilizes the excellent thermal conductivity of the heat dissipation pipes and fins to dissipate the heat from the steam, ultimately thawing frozen meat. This effectively avoids direct contact between the steam in the heat dissipation component and the surface of the frozen meat, thus preventing contamination.
[0015] By setting up a condensate recovery mechanism, the condensate in the water tank forms a liquid seal at the output end of the recovery manifold, blocking the heat exchange between the inside and outside of the recovery manifold, which is beneficial for accurately controlling the temperature changes in the thawing chamber. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the cabinet and fan of this utility model; Figure 3 This is a schematic diagram of the heat dissipation component of this utility model; Figure 4 This is a schematic diagram of the heat dissipation pipe of this utility model; Figure 5 This is a schematic diagram of the structure of the main recovery pipe and water tank of this utility model; Figure 6 This is a schematic diagram of the internal structure of the water tank of this utility model.
[0017] Among them: 1-cabinet, 101-ventilation hole, 2-fan, 3-heat dissipation component, 301-heat pipe, 3011-straight pipe, 3012-bend pipe, 302-heat dissipation fins, 4-condensate recovery component, 401-recovery main pipe, 402-water tank, 4021-overflow hole, 4022-top cover, 5-thawing chamber. Detailed Implementation
[0018] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.
[0019] like Figure 1-6 As shown, a low-temperature high-humidity defrosting device includes a cabinet 1, with heat dissipation holes 101 penetrating the side wall of the cabinet. A fan 2 is fixedly installed on the top wall of the cabinet 1, and a heat dissipation component 3 is fixedly installed inside the cabinet 1. The heat dissipation component 3 has an input end and an output end for introducing steam and allowing it to circulate inside the heat dissipation component 3. The heat dissipation component 3 is positioned in the path of the airflow generated by the fan 2 and heats the airflow generated by the fan 2.
[0020] The input end of the heat dissipation component 3 is connected to a temperature control system for regulating the temperature inside the defrosting chamber 5, and the output end of the heat dissipation component 3 is connected to a condensate recovery component 4 for recovering the condensate formed when steam encounters cold.
[0021] In use, the heat dissipation component 3 is preferably made of a material with good thermal conductivity and corrosion resistance, such as copper, aluminum, or stainless steel. After steam flows through the heat dissipation component 3, most of the heat from the steam is transferred to the heat dissipation component 3. When the airflow generated by the fan 2 comes into contact with the heat dissipation component 3, the airflow is heated and discharged through the heat dissipation holes 101, thereby raising the ambient temperature inside the defrosting chamber 5 and ultimately thawing the frozen meat. In this embodiment, industrial steam can be used, which can effectively reduce production costs and effectively avoid the phenomenon of contamination of frozen meat due to direct contact between industrial steam and the surface of frozen meat.
[0022] In this embodiment, the heat dissipation component 3 includes a heat dissipation pipe 301 and a plurality of parallel and evenly spaced heat dissipation fins 302. A heat dissipation channel is formed between adjacent heat dissipation fins 302 for the airflow blown out by the fan 2 to pass through. The heat dissipation pipe 301 passes through the heat dissipation fins 302 and is tightly connected to the heat dissipation fins 302.
[0023] Specifically, the heat dissipation fins 302 are thin plates of uniform thickness, enabling efficient heat transfer between the heat dissipation pipes 301 and the heat dissipation fins 302. In this embodiment, the heat dissipation fins 302 significantly increase the contact area between the heat dissipation component 3 and the surrounding air, allowing heat to dissipate into the air more quickly and greatly improving heat dissipation efficiency.
[0024] In this embodiment, the heat dissipation pipe 301 is continuously bent to form a structure composed of multiple straight pipes 3011 and multiple bent pipes 3012. The straight pipes 3011 partially penetrate the heat dissipation fins 302, increasing the connection points between the heat dissipation pipe 301 and the heat dissipation fins 302 and improving the heat transfer efficiency between them. The input end of the heat dissipation pipe 301 is connected to a temperature control system to control the temperature inside the defrosting chamber 5 within a suitable defrosting range. The output end of the heat dissipation pipe 301 is connected to a condensate recovery assembly 4 to collect the condensate generated in the heat dissipation assembly 3 for unified treatment.
[0025] In this embodiment, the temperature control system includes temperature sensors installed at different locations in the defrosting chamber 5, and a solenoid valve connected to the input end of the heat sink 301. Both the temperature sensors and the solenoid valve are connected to the PLC.
[0026] In practical use, the temperature sensor detects the ambient temperature of the thawing chamber 5 and transmits the temperature data to the PLC. When the temperature of the thawing chamber 5 is too high, the PLC controls the solenoid valve to close, cutting off the steam supply, and the temperature inside the thawing chamber 5 will gradually drop. When the temperature inside the thawing chamber 5 is too low, the PLC controls the solenoid valve to open, and steam continues to flow through the heat dissipation component 3, and the temperature of the thawing chamber 5 gradually rises.
[0027] In this embodiment, the condensate recovery assembly 4 includes a recovery manifold 401, which is located below the heat dissipation assembly 3. The recovery manifold 401 connects to multiple heat dissipation pipes 301. The recovery manifold 401 is inclined, and the position of the output end of the recovery manifold 401 is lower than the position of the input end of the recovery manifold 401.
[0028] The condensate in the heat dissipation pipe 301 collects in the recovery manifold 401 and is then discharged through it. Because the recovery manifold 401 is angled, the condensate drainage is accelerated. More importantly, the angled recovery manifold 401 prevents water accumulation, and after thawing, it prevents ice buildup and blockage. In practical applications, a check valve can be installed at the output end of the recovery manifold 401 to prevent backflow of air.
[0029] The condensate recovery assembly 4 also includes a water tank 402, the top of which is provided with an openable and closable cover 4022. The output end of the recovery main pipe 401 passes through the side wall of the water tank 402 and extends into the interior of the water tank 402. The output end of the recovery main pipe 401 is submerged below the liquid surface in the water tank 402 and forms a liquid seal.
[0030] In practical applications, the water tank 402 maintains a high liquid level at all times. The liquid seal blocks heat exchange between the inside and outside of the recovery manifold 401, which is beneficial for precise control of temperature changes in the thawing chamber 5. It should be noted that although the condensate discharged from the recovery manifold 401 has a certain initial temperature, the amount of condensate is small and the volume of the water tank 402 is much smaller than the volume of the thawing chamber 5. Therefore, the heat of the condensate itself has a negligible impact on the overall ambient temperature change in the thawing chamber 5.
[0031] In this embodiment, an overflow hole 4021 is provided through one side wall of the water tank 402, and the output end of the recovery main pipe 401 is located below the position of the overflow hole 4021. After the liquid level in the water tank 402 reaches the height of the overflow hole 4021, the excess condensate is discharged through the overflow hole 4021.
[0032] In this embodiment, a humidity control system is also included. The humidity control system includes humidity sensors installed at different locations in the defrosting chamber 5 and a humidifier installed above the interior of the defrosting chamber 5. Both the humidity sensors and the humidifier are connected to a PLC.
[0033] The humidity control system maintains a certain humidity level within the thawing chamber 5 to prevent moisture evaporation from the meat surface, thus preserving its tenderness and juiciness. Specifically, a humidity sensor detects changes in humidity within the thawing chamber 5 and transmits the humidity data to the PLC. When the humidity in the thawing chamber 5 is too low, the PLC controls the humidifier to turn on, gradually increasing the humidity. Once the humidity in the thawing chamber 5 reaches the set value, the PLC controls the humidifier to stop working.
[0034] In this embodiment, steam is introduced into the heat dissipation pipe 301. Most of the heat from the steam is transferred to the pipe wall of the heat dissipation pipe 301 and the heat dissipation fins 302. The airflow generated by the fan 2 increases in temperature after passing through the heat dissipation pipe 301 and the heat dissipation fins 302. After the airflow is discharged from the heat dissipation hole 101, the temperature of the defrosting chamber 5 rises, thereby gradually defrosting the frozen meat.
[0035] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. A low-temperature, high-humidity defrosting device, comprising a cabinet, characterized in that, The side wall of the cabinet is provided with heat dissipation holes, the top wall of the cabinet is fixedly installed with a fan, and the inside of the cabinet is fixedly installed with a heat dissipation component. The heat dissipation component is provided with an input end and an output end for introducing steam and circulating it inside the heat dissipation component. The heat dissipation component is located in the path of the airflow generated by the fan and heats the airflow generated by the fan. The input end of the heat dissipation component is connected to a temperature control system, and the output end of the heat dissipation component is connected to a condensate recovery component.
2. The low-temperature, high-humidity thawing equipment according to claim 1, characterized in that, The heat dissipation assembly includes a heat dissipation pipe and a plurality of parallel and evenly spaced heat dissipation fins. A heat dissipation channel is formed between adjacent heat dissipation fins for airflow blown out by a fan. The heat dissipation pipe passes through the heat dissipation fins and is tightly connected to them.
3. The low-temperature, high-humidity thawing equipment according to claim 2, characterized in that, The heat dissipation pipe is continuously bent to form a structure consisting of multiple straight pipes and multiple bent pipes, with the straight pipes penetrating through the heat dissipation fins.
4. The low-temperature, high-humidity thawing equipment according to claim 3, characterized in that, The temperature control system includes temperature sensors installed at different locations in the defrosting chamber, and a solenoid valve connected to the input end of the heat dissipation pipe. Both the temperature sensors and the solenoid valve are connected to a PLC.
5. The low-temperature, high-humidity thawing equipment according to claim 4, characterized in that, The condensate recovery assembly includes a recovery manifold located below the heat dissipation assembly. The recovery manifold connects to multiple heat dissipation pipes and is inclined. The recovery manifold includes an output end and an input end, with the output end positioned lower than the input end.
6. The low-temperature, high-humidity thawing equipment according to claim 5, characterized in that, The condensate recovery assembly also includes a water tank with an openable and closable top cover. The output end of the recovery manifold passes through the side wall of the water tank and extends into the interior of the water tank. The output end of the recovery manifold is submerged below the liquid surface in the water tank to form a liquid seal.
7. The low-temperature, high-humidity thawing equipment according to claim 6, characterized in that, An overflow hole is provided through one side wall of the water tank, and the output end of the recovery main pipe is located below the position of the overflow hole.
8. The low-temperature, high-humidity thawing equipment according to claim 7, characterized in that, It also includes a humidity control system, which includes humidity sensors installed at different locations in the defrosting chamber and a humidifier installed above the interior of the defrosting chamber. Both the humidity sensors and the humidifier are connected to a PLC.