Liquid nitrogen quick-cooling device for aquatic products

Abstract

The utility model discloses a liquid nitrogen quick-cooling device for aquatic products, and relates to the technical field of quick-cooling of aquatic products. The liquid nitrogen rapid cooling device for the aquatic products comprises a base, a shell is fixedly installed on the upper surface of the base, a cooling conveying assembly is arranged in the shell, a feeding adjusting assembly is arranged on one side of the shell, and the cooling conveying assembly comprises a buffer spring fixedly installed on the inner bottom wall of the shell; the top of the buffer spring is fixedly provided with a guide plate, the inner bottom wall of the shell is fixedly provided with a vibration motor, the top of the vibration motor makes contact with the bottom of the guide plate, the top of the shell is fixedly provided with a water pump, and an output shaft of the water pump is fixedly provided with a nitrogen conveying pipe. In the using process, aquatic products can make more sufficient contact with liquid nitrogen after entering the device, so that quick cooling is more uniform, the cooling speed of the aquatic products is increased, and meanwhile the using convenience of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of rapid cooling technology for aquatic products, specifically a liquid nitrogen rapid cooling device for aquatic products. Background Technology

[0002] The method for rapid cooling of aquatic products is as follows: liquid nitrogen rapid freezing - ice film coating - temperature equalization treatment - rapid freezing - cold preservation - frozen storage: The pre-treated fish is sprayed with liquid nitrogen (or liquid CO2) to rapidly freeze in a low-temperature storage room. After 5-10 minutes, the spraying is stopped, allowing the fish surface to be covered with a layer of ice. Then, it is placed in a -30℃ to -45℃ cold storage room for temperature equalization treatment, ensuring the core temperature is close to the surface temperature to prevent muscle rupture due to temperature and pressure differences. Next, the fish is sprayed with liquid nitrogen for 10 minutes to quickly pass through the ice crystal formation zone and freeze completely. It is then kept at -45℃ and finally frozen in a -25℃ to -60℃ cold storage room. An existing patent, patent publication number CN219741730U, discloses a liquid nitrogen rapid cooling device for aquatic products, including... The system includes a conveyor belt, a quick-freezing box, a liquid nitrogen storage tank, a spraying mechanism, and a size detection mechanism. The size detection mechanism comprises a main control unit, side plates, springs, pressure sensors, an inclined force plate, and a moving plate. Aquatic products are placed on the conveyor belt for transport. Before entering the quick-freezing box, the products pass through the size detection mechanism. After contacting the inclined force plate, the products push the inclined force plate and the moving plate outwards, compressing the springs. At this time, the pressure sensor collects the pressure provided by the springs. The main control unit can convert the pressure data to obtain the approximate width of the aquatic products. Then, when the aquatic products are transported into the quick-freezing box, the main control unit can control the spraying mechanism to perform limited spraying, ensuring that liquid nitrogen is only sprayed onto the aquatic products, avoiding waste of liquid nitrogen and reducing production costs.

[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: In practical applications, simply using a spraying method will result in uneven contact of liquid nitrogen on the surface of aquatic products, leading to uneven rapid cooling zones and affecting the rapid cooling operation of aquatic products. Therefore, we propose a liquid nitrogen rapid cooling device for aquatic products to solve the above-mentioned problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a liquid nitrogen rapid cooling device for aquatic products, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a liquid nitrogen rapid cooling device for aquatic products, including a base, a housing fixedly installed on the upper surface of the base, a cooling conveying assembly inside the housing, and a feeding adjustment assembly on one side of the housing.

[0006] The cooling conveying assembly includes a buffer spring fixedly installed on the bottom wall of the housing, a guide plate fixedly installed on the top of the buffer spring, a vibration motor fixedly installed on the bottom wall of the housing, the top of the vibration motor contacting the bottom of the guide plate, a water pump fixedly installed on the top of the housing, a nitrogen delivery pipe fixedly installed on the output shaft of the water pump, the bottom of the nitrogen delivery pipe penetrating the top of the housing and extending into the interior of the housing, a horizontal pipe connected to the bottom of the nitrogen delivery pipe, and a nozzle connected to the bottom of the horizontal pipe.

[0007] The cooling and conveying components allow for more thorough contact between aquatic products and liquid nitrogen after they enter the device, resulting in more uniform and rapid cooling, which also improves the ease of use of the device.

[0008] The feed adjustment assembly includes a feed pipe connected to one side of the housing, and a feed hopper is connected to the top of the feed pipe.

[0009] Preferably, mounting plates are fixedly installed on both sides of the bottom of the base. The mounting plates have mounting holes, which are oblong holes. The lower surface of the mounting plates has anti-slip texture. The mounting plates facilitate the installation and positioning of the device during use, and maintain the stability of the device installation.

[0010] Preferably, a guide rod is fixedly installed on one side of the upper surface of the guide plate. The guide rod is set in an inclined state. A discharge pipe is connected to one side of the shell. The inner bottom wall of the discharge pipe is flush with the inner bottom wall of the guide plate. The guide rod facilitates the guidance of aquatic products during use, thereby facilitating subsequent use.

[0011] Preferably, the water pump inlet is connected to a connecting pipe, and one end of the connecting pipe is connected to a connector. The connecting pipe and connector facilitate the connection between the water pump and the liquid nitrogen equipment outlet, making subsequent use convenient.

[0012] Preferably, a gate is inserted into one side of the feed pipe, a baffle is fixedly installed on one side of the gate, and a groove is opened on one side of the feed pipe for the gate to pass through. The inner wall of the groove is slidably connected to the surface of the gate, and the gate is adapted to the groove. The groove facilitates the insertion and positioning of the gate during use.

[0013] Preferably, a baffle is fixedly installed on one side of the gate, and a threaded rod is inserted into the baffle. One end of the threaded rod is rotatably connected to one side of the feed pipe through a bearing.

[0014] Preferably, the baffle has a threaded hole for the threaded rod to pass through, the threaded hole is threadedly connected to the threaded rod, and a rotating disk is fixedly installed at one end of the threaded rod. The surface of the rotating disk has anti-slip texture.

[0015] The feeding adjustment component allows for adjustment of the cooling rate of aquatic products during use. This enables control over the feeding and discharging speeds of aquatic products based on actual conditions, while also adjusting the cooling rate for easier subsequent use. Beneficial effects

[0016] This invention provides a liquid nitrogen rapid cooling device for aquatic products. Compared with the prior art, it has the following advantages:

[0017] This liquid nitrogen rapid cooling device for aquatic products, through its cooling and conveying components, allows for more thorough contact between the aquatic products and liquid nitrogen after they enter the device, resulting in more uniform rapid cooling and accelerating the cooling speed of the aquatic products. It also improves the ease of use of the device.

[0018] Meanwhile, the cooling speed of aquatic products can be adjusted during use through the feeding adjustment component. This allows for control of the feeding and discharging speeds of aquatic products according to actual conditions, as well as adjustment of the cooling speed, facilitating subsequent use. Attached Figure Description

[0019] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a two-dimensional structural diagram of the present invention from a second perspective;

[0021] Figure 3 This is a three-dimensional sectional view of the present invention.

[0022] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0023] In the diagram: 1. Base; 2. Housing; 3. Cooling conveying assembly; 300. Buffer spring; 301. Guide plate; 302. Vibration motor; 303. Discharge pipe; 304. Water pump; 305. Nitrogen supply pipe; 306. Horizontal pipe; 307. Nozzle; 308. Guide rod; 4. Feed adjustment assembly; 400. Feed pipe; 401. Feed hopper; 402. Gate; 403. Baffle; 404. Threaded rod; 5. Mounting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 This utility model provides a technical solution: a liquid nitrogen rapid cooling device for aquatic products, including a base 1, a housing 2 fixedly installed on the upper surface of the base 1, a cooling conveying component 3 inside the housing 2, and a feeding adjustment component 4 on one side of the housing 2.

[0026] The cooling conveying assembly 3 includes a buffer spring 300 fixedly installed on the inner bottom wall of the housing 2, a guide plate 301 fixedly installed on the top of the buffer spring 300, a vibration motor 302 fixedly installed on the inner bottom wall of the housing 2, the top of the vibration motor 302 contacting the bottom of the guide plate 301, a water pump 304 fixedly installed on the top of the housing 2, a nitrogen conveying pipe 305 fixedly installed on the output shaft of the water pump 304, the bottom of the nitrogen conveying pipe 305 penetrating the top of the housing 2 and extending into the interior of the housing 2, the bottom of the nitrogen conveying pipe 305 connecting to a horizontal pipe 306, and the bottom of the horizontal pipe 306 connecting to a nozzle 307. The cooling conveying assembly 3, during use, allows the aquatic products to have more sufficient contact with liquid nitrogen after entering the device, thereby making their rapid cooling more uniform, accelerating the cooling speed of the aquatic products, and also improving the ease of use of the device.

[0027] The feed adjustment assembly 4 includes a feed pipe 400 connected to one side of the housing 2, and a feed hopper 401 connected to the top of the feed pipe 400.

[0028] See Figure 1 Mounting plates 5 are fixedly installed on both sides of the bottom of the base 1. Mounting plates 5 have mounting holes, which are oblong holes. The lower surface of the mounting plates 5 has anti-slip texture. The mounting plates 5 facilitate the installation and positioning of the device during use, and maintain the stability of the device installation.

[0029] See Figure 3 A guide rod 308 is fixedly installed on one side of the upper surface of the guide plate 301. The guide rod 308 is set in an inclined state. A discharge pipe 303 is connected to one side of the housing 2. The inner bottom wall of the discharge pipe 303 is flush with the inner bottom wall of the guide plate 301. The guide rod 308 is set to facilitate the guidance of aquatic products during use, thereby facilitating subsequent use.

[0030] See Figure 3The inlet of the water pump 304 is connected to a connecting pipe, and one end of the connecting pipe is connected to a connector. The connecting pipe and connector are designed to facilitate the connection between the water pump 304 and the outlet of the liquid nitrogen equipment, which is convenient for subsequent use.

[0031] See Figure 4 A gate 402 is inserted into one side of the feed pipe 400, and a baffle 403 is fixedly installed on one side of the gate 402. A groove is provided on one side of the feed pipe 400 for the gate 402 to pass through, and the inner wall of the groove is slidably connected to the surface of the gate 402. The gate 402 is adapted to the groove. The groove facilitates the insertion and positioning of the gate 402 during use.

[0032] See Figure 4 A baffle 403 is fixedly installed on one side of the gate 402. A threaded rod 404 is inserted into the baffle 403. One end of the threaded rod 404 is rotatably connected to one side of the feed pipe 400 through a bearing.

[0033] See Figure 4 The baffle 403 has a threaded hole for the threaded rod 404 to pass through. The threaded hole is threadedly connected to the threaded rod 404. A rotating disk is fixedly installed at one end of the threaded rod 404. The surface of the rotating disk has anti-slip texture. The feeding adjustment component 4 can adjust the cooling speed of the aquatic products during use. Thus, the feeding speed and discharge speed of the aquatic products can be controlled according to the actual situation during use. At the same time, the cooling speed can also be adjusted for subsequent use.

[0034] During operation, the cooling conveying component 3 ensures more thorough contact between the aquatic products and liquid nitrogen upon entering the device, resulting in more uniform and rapid cooling. This also improves the ease of use of the device. When cooling is required, the aquatic products are fed into the feed hopper 401 and then through the feed pipe 400 onto the guide plate 301. The vibration motor 302 then operates, causing the guide plate 301 to vibrate. Simultaneously, the water pump 304 pumps liquid nitrogen through nozzles 307 to cool the aquatic products on the guide plate 301. Spraying is used to cool the aquatic products. The feeding adjustment component 4 can adjust the cooling speed of the aquatic products during use. This allows for control of the feeding and discharging speeds of the aquatic products according to actual conditions, and also adjusts the cooling speed for subsequent use. When it is necessary to control the feeding amount of aquatic products, the threaded rod 404 is rotated clockwise or counterclockwise, causing the threaded rod 404 to drive the gate 402 on the baffle 403 to move left and right, thereby adjusting the gap between the feeding pipe 400 and the gate 402, and thus adjusting the feeding amount.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A liquid nitrogen rapid cooling device for aquatic products, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly installed with a housing (2), and a cooling conveying assembly (3) is provided inside the housing (2). A feeding adjustment assembly (4) is provided on one side of the housing (2). The cooling conveying assembly (3) includes a buffer spring (300) fixedly installed on the bottom wall of the housing (2), a guide plate (301) fixedly installed on the top of the buffer spring (300), a vibration motor (302) fixedly installed on the bottom wall of the housing (2), the top of the vibration motor (302) contacting the bottom of the guide plate (301), a water pump (304) fixedly installed on the top of the housing (2), a nitrogen delivery pipe (305) fixedly installed on the output shaft of the water pump (304), the bottom of the nitrogen delivery pipe (305) penetrating the top of the housing (2) and extending into the interior of the housing (2), the bottom of the nitrogen delivery pipe (305) being connected to a horizontal pipe (306), and the bottom of the horizontal pipe (306) being connected to a nozzle (307). The feed adjustment assembly (4) includes a feed pipe (400) connected to one side of the housing (2), and a feed hopper (401) is connected to the top of the feed pipe (400).

2. The liquid nitrogen rapid cooling device for aquatic products according to claim 1, characterized in that: Mounting plates (5) are fixedly installed on both sides of the bottom of the base (1). Mounting plates (5) have mounting holes, which are oblong holes. Anti-slip textures are provided on the lower surface of the mounting plates (5).

3. The liquid nitrogen rapid cooling device for aquatic products according to claim 1, characterized in that: A guide rod (308) is fixedly installed on one side of the upper surface of the guide plate (301). The guide rod (308) is set to an inclined state. A discharge pipe (303) is connected to one side of the housing (2). The inner bottom wall of the discharge pipe (303) is flush with the inner bottom wall of the guide plate (301).

4. The liquid nitrogen rapid cooling device for aquatic products according to claim 1, characterized in that: The water pump (304) has a connecting pipe at its inlet, and a connector is connected to one end of the connecting pipe.

5. The liquid nitrogen rapid cooling device for aquatic products according to claim 1, characterized in that: A gate (402) is inserted into one side of the feed pipe (400), and a baffle (403) is fixedly installed on one side of the gate (402). A groove is opened on one side of the feed pipe (400) for the gate (402) to pass through, and the inner wall of the groove is slidably connected to the surface of the gate (402), and the gate (402) is adapted to the groove.

6. The liquid nitrogen rapid cooling device for aquatic products according to claim 5, characterized in that: A baffle (403) is fixedly installed on one side of the gate (402), and a threaded rod (404) is inserted on the baffle (403). One end of the threaded rod (404) is rotatably connected to one side of the feed pipe (400) through a bearing.

7. The liquid nitrogen rapid cooling device for aquatic products according to claim 6, characterized in that: The baffle (403) has a threaded hole for the threaded rod (404) to pass through. The threaded hole is threadedly connected to the threaded rod (404). A rotating disk is fixedly installed at one end of the threaded rod (404). The surface of the rotating disk has anti-slip texture.

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