Variable air duct refrigeration house for chilled meat storage

Abstract

The invention relates to the technical field of refrigeration houses, and provides a variable-air-duct refrigeration house for chilled fresh meat storage, which comprises a refrigeration house body, an air cooler and an air duct, the air duct is communicated with the air cooler, and the variable-air-duct refrigeration house further comprises a temperature and humidity sensor, a moving part, an air supply pipe, a swing mechanism and an air volume adjusting assembly, the air channel is movably arranged on the inner top wall of the refrigeration house body through a moving part and communicates with the air cooler through a telescopic hose, the air supply pipe communicates with the air channel, the air supply pipe communicates with an air outlet pipe through a telescopic hose, and the swing mechanism is arranged on the air channel. The air volume adjusting assembly is used for adjusting the angle of the air outlet pipe so as to adjust the air blowing direction and arranged at an air outlet of the air outlet pipe. By means of the technical scheme, the technical problems that in the prior art, due to a fixed air duct, cold air distribution is uneven, local areas are dry, and energy consumption is large are solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of cold storage technology, specifically to a variable air duct cold storage for storing chilled meat. Background Technology

[0002] The storage of chilled meat requires extremely high cold chain technology, necessitating precise control of temperature (0-4℃), relative humidity (85%-95%), and air velocity. Traditional cold storage facilities use fixed duct air supply systems, which have the following inherent drawbacks: fixed ducts lead to uneven distribution of cold air, with temperature differences of 3-5℃ between different locations within the storage facility; excessively high air velocity at the air outlets accelerates the evaporation of surface moisture from the meat, causing localized drying and weight loss; to maintain the temperature in the edge areas, the overall air supply temperature must be lowered or the air velocity increased, increasing the energy consumption of the entire system; and the fixed position and angle of the ducts cannot adapt to dynamic changes within the cold storage facility, providing only a fixed airflow pattern and making it difficult to achieve zoned control. Summary of the Invention

[0003] To overcome the above-mentioned defects, the present invention provides a variable air duct cold storage for chilled meat, which solves the technical problems of uneven cold air distribution, local dryness, and high energy consumption caused by fixed air ducts in the prior art.

[0004] According to one aspect, at least one embodiment of the present invention provides a variable air duct cold storage for storing chilled meat, comprising a cold storage body, a cold air blower, and an air duct, wherein the air duct and the cold air blower are connected, and further comprising: A temperature and humidity sensor, wherein multiple temperature and humidity sensors are provided and installed inside the cold storage body, for multi-point monitoring of the internal temperature and humidity of the cold storage body; A movable component, wherein the air duct is movably mounted on the inner top wall of the cold storage body via the movable component, and the air duct is connected to the air cooler via a telescopic flexible hose; the movable component includes: A lead screw feeding mechanism is installed on the cold storage body, and the air duct is connected to the lead screw nut of the lead screw feeding mechanism; The air supply duct is provided in multiple ways. The air supply duct is connected to the air duct and the air supply duct is connected to the air outlet duct through a flexible telescopic hose. A swing mechanism, disposed on the air duct, is used to adjust the angle of the air outlet pipe to regulate the airflow direction. The swing mechanism includes: A swing motor is installed on the air duct, and the air outlet pipe is fixedly installed on the output end of the swing motor via a drive plate; An airflow regulating component, disposed at the air outlet of the air outlet duct, is used to regulate the airflow rate of the air outlet duct. The airflow regulating component includes: A baffle is provided at the air outlet of the air outlet pipe, and the baffle has multiple air outlet holes. A baffle is provided, and the baffle corresponds one-to-one with the air outlet. The baffle is in contact with the cover. The relative movement of the baffle and the cover causes the baffle to block the air outlet to adjust the air output of the air outlet.

[0005] To improve the uniformity of cold air blowing and reduce circulation dead zones, the air duct includes a top wall air duct and two side wall air ducts. The two side wall air ducts are connected to the two ends of the top wall air duct, and one of the side wall air ducts is connected to the air cooler.

[0006] To improve the uniformity of cold air blowing and reduce circulation dead zones, the air supply duct, the side wall air duct, and the top wall air duct are connected on both sides of the moving direction. The air outlet duct connected to the side wall air duct swings in the vertical direction, and the air outlet duct connected to the top wall air duct swings in the length direction of the top wall air duct.

[0007] To enable relative movement between the baffle and the cover, the baffle is rotatably mounted on the cover, and the baffle and the vent are staggered along the circumference of the cover.

[0008] To ensure the stability of the air duct, a support plate is installed inside the cold storage body, and multiple ball bearings are rotatably connected to the bottom of the air duct, with the ball bearings contacting the top of the support plate.

[0009] To prevent the lead screw feed mechanism from freezing and affecting the movement of the air duct, telescopic protective sleeves are provided at both ends of the lead screw nut, and the lead screw of the lead screw feed mechanism is located inside the telescopic protective sleeves.

[0010] To reduce the loss of cold air, the outer layers of the air duct, the air supply pipe, the air outlet pipe, and the flexible hose are all covered with an insulation layer.

[0011] The beneficial effects of the embodiments of the present invention are as follows: 1. In this invention, temperature and humidity are monitored in different areas of the cold storage body by temperature and humidity sensors, the air duct is moved along the cold storage body by moving parts, and the angle of the air outlet is adjusted by the swing mechanism, so that the air duct can accurately deliver air to the areas of the cold storage body with higher temperature, thereby reducing the temperature difference between different locations of the cold storage body.

[0012] 2. In this invention, the air outlet pipes are located on both sides of the air duct, which avoids direct blowing on the chilled fresh meat, thereby preventing the high-speed cold air at the cold air outlet from causing the moisture on the surface of the meat to evaporate rapidly, resulting in the meat drying and losing weight.

[0013] 3. In this invention, by controlling the position of the air duct, the orientation of the air outlet pipe, and adjusting the air volume of the air outlet pipe by rotating the baffle, multiple airflow modes can be provided to achieve zoned control within the cold storage body. At the same time, by swinging the air outlet pipe, the diffusion of cold air can be accelerated, and the efficiency of cooling air circulation can be improved.

[0014] 4. In this invention, when opening and closing the cold storage door to allow fresh meat to enter or exit, the air duct can be moved to the doorway to concentrate the cold air blowing at the doorway, thereby reducing the temperature impact of the outside temperature on the inside of the cold storage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present invention; Figure 2 for Figure 1 A partial cross-sectional structural schematic diagram in the embodiment; Figure 3 for Figure 1 The embodiment is a structural schematic diagram of the air cooler, telescopic hose, air duct and moving parts; Figure 4 for Figure 1 The embodiment shows a structural schematic diagram of the air cooler, telescopic hose, air duct, and lead screw feed mechanism; Figure 5 for Figure 1 A schematic diagram of the structure of the air supply duct, telescopic flexible hose, air outlet duct and air volume adjustment component in the embodiment; Figure 6 for Figure 1 A schematic diagram of the air volume regulating component in the embodiment; Figure 7 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0017] In the picture: 1. Cold storage unit; 2. Air cooler; 3. Temperature and humidity sensor; 4. Air supply duct; 5. Flexible hose; 6. Air outlet duct; 101. Lead screw feed mechanism; 102. Support plate; 103. Ball bearing; 104. Telescopic protective sleeve; 105. Slide rod; 106. Sliding seat; 201. Swing motor; 202. Drive board; 301. Top wall air duct; 302. Side wall air duct; 401. Cover; 402. Baffle; 403. Adjustment motor; 404. Drive frame. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1 to 7 The illustration shows a variable air duct cold storage for chilled meat according to an embodiment of the present invention. It includes a cold storage body 1, a cooling fan 2, and an air duct. The air duct and the cooling fan 2 are connected. The cooling fan 2 is a known prior art device, typically a complete set of equipment consisting of an axial flow fan and cooling pipes. The cooling fan 2 forces air from the cold storage room through the cooling pipes inside the unit for heat exchange, thereby cooling the air and lowering the storage temperature. The cooling fan 2 is configured to cool the air... The methods used can be divided into three types: dry air cooler 2, wet air cooler 2, and dry-wet hybrid air cooler 2. Among them, the refrigerant or heat transfer fluid flows in the pipe and cools the air outside the pipe through the pipe wall. The one that directly exchanges heat with the air by spraying liquid heat transfer fluid is called wet air cooler 2. In addition to cooling pipe, hybrid air cooler 2 also has a heat transfer fluid spraying device. It can be selected according to the area of ​​the cold storage and the refrigeration needs. It also includes temperature and humidity sensor 3, moving parts, air supply pipe 4, swing mechanism and air volume adjustment components.

[0024] like Figure 2 As shown, multiple temperature and humidity sensors 3 are installed inside the cold storage body 1 to monitor the internal temperature and humidity of the cold storage body 1 at multiple points. The temperature and humidity sensor 3 is a sensor device equipped with humidity-sensitive and temperature-sensitive elements, which can be used to measure temperature and humidity. It uses an integrated temperature and humidity probe as the temperature measuring element, and collects signals through resistive humidity-sensitive elements and NTC temperature measuring elements. After processing by circuits such as filtering, amplification, and nonlinear correction, it outputs a linear electrical signal or digital signal and transmits it to the processor. Multiple temperature and humidity sensors 3 are set according to the layout inside the cold storage body 1 to monitor the temperature and humidity of different areas of the cold storage body 1. The processor judges the temperature and humidity differences in each area and controls the cold air to be concentrated and blown to the area with higher temperature to cool it down, thereby reducing the temperature difference between different locations in the cold storage body 1 and ensuring the most suitable storage conditions for chilled meat.

[0025] like Figures 2 to 4As shown, the air duct is movably mounted on the inner top wall of the cold storage body 1 via the movable component. The air duct is connected to the air cooler 2 via a telescopic hose 5. The movable component includes a screw feed mechanism 101, which is mounted on the cold storage body 1. The air duct is connected to the screw nut of the screw feed mechanism 101. To ensure the stability of the air duct, a support plate 102 is installed inside the cold storage body 1. Multiple ball bearings 103 are rotatably connected to the bottom of the air duct. The ball bearings 103 contact the top of the support plate 102. To prevent the screw feed mechanism 101 from freezing and affecting the movement of the air duct, telescopic protective sleeves 104 are provided at both ends of the screw nut. The screw of the screw feed mechanism 101 is located inside the telescopic protective sleeve 104. The screw feed mechanism 101 is... The prior art, known to those skilled in the art, mainly consists of a screw, nut, steel ball, preload plate, reverser, and dustproof device. Its function is to convert rotary motion into linear motion. Through the lead screw feed mechanism 101, it can drive the air duct to reciprocate along the cold storage body 1. In conjunction with the temperature and humidity sensor 3, it moves the air duct to the position where cold air needs to be blown. A slide rod 105 is fixedly installed inside the cold storage body 1. A sliding seat 106 is fixedly installed at the top of the air duct. The sliding seat 106 has a groove for the slide rod 105 to pass through. A ball bearing 103 is installed inside the groove. The ball bearing 103 contacts the slide rod 105. The lower part of the air duct is supported by the support plate 102. The air duct is limited by the slide rod 105, so that the lead screw feed mechanism 101 can stably drive the air duct to move. The rotation of the ball bearing 103 reduces the resistance when the air duct moves.

[0026] like Figures 1 to 7 As shown, multiple air supply pipes 4 are provided, and the air supply pipes 4 are connected to the air duct. The air supply pipes 4 are connected to the air outlet pipes 6 through the telescopic flexible hoses 5. The swing mechanism is provided on the air duct and is used to adjust the angle of the air outlet pipes 6 to adjust the blowing direction. The swing mechanism includes a swing motor 201, which is installed on the air duct. The air outlet pipes 6 are fixedly installed on the output end of the swing motor 201 through the drive plate 202. The swing motor 201 can drive the air outlet pipes 6 to rotate, adjust the air outlet direction of the air outlet pipes 6, thereby achieving precise air supply, so that the air outlet of the air outlet pipes 6 is directed towards the area that needs to be cooled. The cold air sinks and cools the area. In order to reduce the loss of cold air, the outer layers of the air duct, the air supply pipes 4, the air outlet pipes 6 and the telescopic flexible hoses 5 are all covered with heat insulation layers, which can reduce the heat exchange between the cold air and the external environment during the cold air transportation process, ensure the low temperature of the cold air, and thus improve the fixed-point cooling of the corresponding area of ​​the cold storage body 1.

[0027] like Figures 1 to 7As shown, to improve the uniformity of cold air blowing and reduce circulation dead zones, the air duct includes a top wall air duct 301 and two side wall air ducts 302. The two side wall air ducts 302 are connected to both ends of the top wall air duct 301. One of the side wall air ducts 302 is connected to the air cooler 2. The air supply pipe 4 is connected to both sides of the side wall air duct 302 and the top wall air duct 301 in the direction of movement. The air outlet pipe 6 connected to the side wall air duct 302 swings in the vertical direction, and the air outlet pipe 6 connected to the top wall air duct 301 swings in the length direction of the top wall air duct 301. The air outlet pipe 6 on the top wall air duct 301 cools the middle area of ​​the cold storage body 1, and the air outlet pipe 6 on the side wall air ducts 302 cools the edge of the cold storage body 1. At the same time, the blowing range of cold air can be expanded in the vertical direction, thereby improving the cooling effect on the cold storage body 1.

[0028] like Figures 1 to 7 As shown, the airflow regulating component is disposed at the air outlet of the air outlet 6 and is used to regulate the airflow of the air outlet 6. The airflow regulating component includes a cover 401 and a baffle 402. The cover 401 is disposed at the air outlet of the air outlet 6 and has multiple air outlet holes. Multiple baffles 402 are disposed, with each baffle 402 corresponding to one of the air outlet holes. The baffle 402 contacts the cover 401. The relative movement of the baffle 402 and the cover 401 causes the baffle 402 to block the air outlet holes to regulate the airflow of the air outlet holes. To achieve the relative movement between the baffle 402 and the cover 401, the baffle 402 is rotatably disposed on the cover 401. The baffle 402 and the air outlet holes are located along the cover 401. The cold storage unit 1 is circumferentially staggered. An adjustment motor 403 is installed on the cover 401. The output end of the adjustment motor 403 is fixedly connected to the drive frame 404. The baffle 402 is fixedly connected to the drive frame 404. The adjustment motor 403 can drive the drive frame 404 and multiple baffles 402 to rotate. The rotation of the baffle 402 can make it rotate to the position of the air outlet to block the air outlet. As the rotation angle changes, the blocking area of ​​the baffle 402 on the air outlet changes until the air outlet is blocked, thereby adjusting the air volume of the air outlet. For example, when rapid cooling is required, the air outlet is fully opened, and when the temperature is too low and the air supply needs to be stopped, the air outlet is completely closed. When the cold air is circulating daily, the baffle 402 blocks part of the air outlet, reducing the air volume of the cold air and realizing flexible air supply to the cold storage unit 1.

[0029] The working principle or usage process of this variable air duct cold storage for chilled meat is as follows: Fresh meat is stored inside the cold storage body 1. Temperature and humidity are monitored in various areas of the cold storage body 1 by temperature and humidity sensor 3. A suitable temperature and humidity range for the cold storage body 1 is set. When an area temperature is detected to be higher than the set temperature, the processor controls the screw feed mechanism 101, the swing motor 201 and the adjustment motor 403 to start. The screw feed mechanism 101 drives the air duct to move to the appropriate position. The swing motor 201 drives the air outlet 6 to point the air outlet angle towards the top of the adjustment area. The adjustment motor 403 of the corresponding area drives the baffle 402 to rotate and open the air outlet. The air outlets of other unrelated areas are in a semi-open state or in normal working state. The cold air delivered by the air cooler 2 is blown into the adjustment area through the air outlet 6 to cool it down quickly. When the temperature of the area is detected to be lower than the set temperature, the processor controls the adjustment motor 403 of the corresponding area to drive the baffle 402 to close the air outlet and reduce the blowing of cold air. Under normal working conditions, the air outlet is in a semi-open state, the screw feed mechanism 101 drives the air duct to move back and forth, and the swing motor 201 drives the air outlet pipe 6 to swing back and forth, so that the cold air circulates evenly and quickly to the entire cold storage body 1, avoiding the phenomenon of drying out or excessively low temperature caused by the same position being directly blown by cold air for a long time. When it is necessary to enter or exit the cold storage body 1, the air duct moves to the door of the cold storage body 1 to centrally cool the door area and reduce the impact of the outside temperature on the inside of the cold storage body 1 when the door is opened.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A variable air duct freezer for chilled fresh meat storage, comprising a freezer body (1), a cold air fan (2) and an air duct, the air duct and the cold air fan (2) being in communication, characterized in that, Also include: Temperature and humidity sensor (3), the temperature and humidity sensor (3) is provided with a plurality of, the temperature and humidity sensor (3) is installed in the inside of the freezer body (1), for the inside temperature and humidity of the freezer body (1) multi-point monitoring; Moving part, the air duct is movably arranged on the inner top wall of the freezer body (1) through the moving part, and the air duct is communicated with the air cooler (2) through the flexible hose (5); Air supply pipe (4), the air supply pipe (4) is provided with a plurality of, the air supply pipe (4) and the air duct are communicated, the air supply pipe (4) is communicated with the air outlet pipe (6) through the flexible hose (5); Swing mechanism, the swing mechanism is arranged on the air duct, for adjusting the angle of the air outlet pipe (6) to adjust the blowing direction; Air volume adjusting assembly, the air volume adjusting assembly is arranged at the air outlet of the air outlet pipe (6), for adjusting the air outlet volume of the air outlet pipe (6).

2. A variable air duct freezer for the storage of chilled fresh meat according to claim 1 wherein, The moving part includes: Lead screw feed mechanism (101), the lead screw feed mechanism (101) is installed on the freezer body (1), and the air duct and the lead screw nut of the lead screw feed mechanism (101) are connected.

3. A variable air duct freezer for the storage of chilled fresh meat according to claim 1 wherein, The swing mechanism includes: Swing motor (201), the swing motor (201) is installed on the air duct, and the air outlet pipe (6) is fixedly installed on the output end of the swing motor (201) through the driving plate (202).

4. A variable air duct freezer for the storage of chilled fresh meat according to claim 1, characterised in that, The air volume adjusting assembly includes: Cover (401), the cover (401) is arranged at the air outlet of the air outlet pipe (6), a plurality of air outlets are formed in the cover (401) Baffle (402), the baffle (402) is provided with a plurality of, the baffle (402) and the air outlet are one-to-one correspondence, the baffle (402) and the cover (401) are in contact, and the baffle (402) and the cover (401) are relatively moved to shield the air outlet with the baffle (402) to adjust the air outlet volume of the air outlet.

5. A variable air duct freezer for the storage of chilled fresh meat according to claim 1 wherein, The air duct includes a top wall air duct (301) and two side wall air ducts (302), two ends of the two side wall air ducts (302) and the top wall air duct (301) are communicated, and one of the side wall air ducts (302) is communicated with the air cooler (2).

6. A variable air duct freezer for the storage of chilled fresh meat according to claim 5 wherein, The air supply pipe (4) and the side wall air duct (302) and the top wall air duct (301) are communicated on both sides of the moving direction, the swing direction of the air outlet pipe (6) communicated with the side wall air duct (302) is vertical direction, and the swing direction of the air outlet pipe (6) communicated with the top wall air duct (301) is the length direction of the top wall air duct (301).

7. A variable air duct freezer for the storage of chilled fresh meat according to claim 4 wherein, The baffle (402) is rotatably arranged on the cover (401), and the baffle (402) and the air outlet are staggered along the circumference of the cover (401).

8. A variable air duct freezer for the storage of chilled fresh meat according to claim 1 wherein, A support plate (102) is installed in the inside of the freezer body (1), and a plurality of ball bearings (103) are rotatably connected to the bottom of the air duct, and the ball bearings (103) are in contact with the top end of the support plate (102).

9. A variable air duct freezer for the storage of chilled fresh meat according to claim 2, characterised in that, Both ends of the screw nut are provided with telescopic protective sleeves (104), and the screw of the screw feed mechanism (101) is located inside the telescopic protective sleeves (104).

10. A variable air duct freezer for the storage of chilled fresh meat according to claim 1 wherein, The outer layers of the air duct, the air supply pipe (4), the air outlet pipe (6) and the telescopic hose (5) are covered with a heat preservation layer.

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