Multi-channel liquid nitrogen filling device

Abstract

The utility model discloses a multi-channel liquid nitrogen filling device which comprises a liquid nitrogen tank, a partition plate and a plurality of partition pipes. The liquid nitrogen tank is provided with a filling opening; the partition plate is arranged on the filling opening or in the liquid nitrogen tank, a plurality of partition channels are formed in the partition plate, an opening is formed in the side face of the lower portion of the partition pipe, two pipe pieces are symmetrically arranged at the lower end of the partition pipe, and the opening is located between the two pipe pieces. By using the multi-channel liquid nitrogen filling device, the filling efficiency can be improved, the mutual adhesion of products is avoided, and the liquid nitrogen tank and the separation pipe can be conveniently cleaned.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid nitrogen filling, and particularly relates to a multi-channel liquid nitrogen filling device. Background Art

[0002] Liquid nitrogen is a liquid form of nitrogen formed at low temperatures, and its boiling point is -196°C. Liquid nitrogen is widely used in many fields such as scientific research, medical treatment and food because it is non-toxic, colorless, odorless, non-flammable and non-explosive, and chemically stable. In the food industry, liquid nitrogen quick freezing technology can quickly freeze food and maintain the nutrition, taste and original flavor of the food. In the medical field, liquid nitrogen cryotherapy is a technology that uses the comprehensive effects of cryobiology to treat certain diseases. In addition, liquid nitrogen is also used for low-temperature storage and refrigerated transportation, such as the storage and transportation of strains, cells, vaccines, bone marrow, etc.

[0003] Liquid nitrogen filling is a process that requires precise control of the freezing speed. It is usually used for low-temperature storage and processing of food, beverages, biological samples, etc. When filling liquid nitrogen, the operating procedures and safety standards should be strictly followed to ensure personnel safety and filling efficiency. At present, liquid nitrogen filling usually uses a single filling head to fill the liquid nitrogen tank. The filling capacity is low, and some products are filled and quickly frozen to form spherical or block products. However, since the products cannot be separated after falling, they gather together, resulting in the formation of products sticking to each other. Utility Model Content

[0004] In view of the above-mentioned problems, the purpose of the utility model is to provide a multi-channel liquid nitrogen filling device, which can perform multi-channel filling of liquid nitrogen tanks, improve the filling capacity, and prevent the products from sticking after filling.

[0005] The technical solution of the utility model is: a multi-channel liquid nitrogen filling device, comprising:

[0006] Liquid nitrogen tank with a filling port;

[0007] A partition plate, arranged on the filling port or in the liquid nitrogen tank, wherein a plurality of partition channels are arranged on the partition plate;

[0008] A plurality of partition tubes are provided, one of which is movably inserted in each of the partition channels, the lower end of each of the partition tubes is located at the bottom of the liquid nitrogen tank, and an open opening is provided on the side of the lower portion of the partition tube.

[0009] Furthermore, the partition plate is fixed in the liquid nitrogen tank by hanging type fixing or supporting type fixing.

[0010] Furthermore, two tube sheets are symmetrically provided at the lower end of the separation tube, and the open port is located between the two tube sheets.

[0011] Furthermore, the cross section of the opening is a rectangle, or a combination of a rectangle and other shapes.

[0012] The working method of the utility model comprises the following steps: when liquid nitrogen is filled, a partition plate is placed on the filling port of the liquid nitrogen tank or in the liquid nitrogen tank, and the liquid nitrogen tank is filled with multiple channels. The feed liquid falls into the liquid nitrogen tank through a plurality of partition tubes and is quickly frozen. The fallen products will not stick to each other, and because open ports are symmetrically arranged at the lower ends of the partition tubes, the fallen products are dispersed to both sides and will not occupy the partition tubes, thereby improving the filling speed and batch processing volume. After the filling is completed, the partition plate is taken out, and the partition tube can be taken out at the same time, so that the liquid nitrogen tank and the partition tube can be cleaned conveniently.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a multi-channel liquid nitrogen filling device, which is provided with a partition plate at the filling port of the liquid nitrogen tank or in the liquid nitrogen tank, and multiple partition channels are evenly provided on the partition plate, and multiple partition tubes can be respectively inserted into the partition channels, so that the liquid nitrogen tank can be filled with liquid nitrogen through multiple filling heads, thereby improving the liquid nitrogen filling capacity and avoiding mutual adhesion. The partition plate and the partition tube are movably connected, which is convenient for disassembly and cleaning. An open port is provided at the lower end of the partition tube, so that the product can be dispersed from both sides after falling into the liquid nitrogen, thereby improving the batch processing volume. In short, the utility model has the advantages of novel structure, convenient operation, high filling efficiency, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the partition plate of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a partition plate with a positioning ring in Example 1 of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the separator tube of the utility model;

[0019] Figure 5 It is a schematic diagram of the filling port structure of Example 1 of the utility model.

[0020] Among them, 1-liquid nitrogen tank, 11-filling port, 111-positioning slot, 2-partition plate, 21-partition channel, 211-sealing gasket, 22-positioning ring, 23-ring groove, 231-positioning block, 3-partition tube, 31-opening port, 32-limiting ring, 33-tube segment. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 To the attached Figure 5 , the specific implementation methods of the utility model are described in detail. In the description of the utility model, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0023] Embodiment 1:

[0024] like Figure 1 As shown, a multi-channel liquid nitrogen filling device comprises a liquid nitrogen tank 1, a partition plate 2 and a plurality of partition tubes 3. Wherein: the liquid nitrogen tank 1 has a filling port 11;

[0025] The partition plate 2 is arranged on the filling port 11. Figure 2-3 As shown, the partition plate 2 is provided with a plurality of partition channels 21, the edge of the partition plate 2 is provided with a positioning ring 22, the lower surface of the positioning ring 22 is provided with a ring groove 23, the ring groove 23 is embedded on the edge of the filling port 11, and a plurality of positioning blocks 231 are spaced apart in the ring groove 23, as shown in FIG. Figure 5 As shown, a plurality of positioning slots 111 are provided at intervals on the edge of the filling port 11, and the positioning block 231 is movably engaged in the positioning slot 111 to limit the rotation of the positioning ring 22;

[0026] A separation tube 3 is movably inserted in each separation channel 21, and a sealing gasket 211 is circumferentially arranged inside the separation channel 21 to form a seal with the side wall of the separation tube 3. Figure 4 As shown, a limiting ring 32 is provided on the outer side of the upper end of the separating tube 3, and the limiting ring 32 is used to limit the position of the separating tube 3. The lower end of the separating tube 3 is located at the bottom of the liquid nitrogen tank 1, and an open port 31 is provided on the lower side of the separating tube 3. Two pipe sheets 33 are symmetrically provided at the lower end of the separating tube 3, and the open port 31 is located between the two pipe sheets 33.

[0027] The working method of the above embodiment is: when filling liquid nitrogen, place the partition plate 2 on the filling port 11 of the liquid nitrogen tank 1, rotate the partition plate 2, so that the positioning block 231 in the ring groove 23 of the positioning ring 22 is engaged with the positioning groove 111 at the edge of the filling port 11, and then insert multiple partition tubes 3 into the partition channels 21 on the partition plate 2, and connect multiple liquid nitrogen filling heads to the upper ends of the partition tubes 3 respectively, perform multi-channel filling on the liquid nitrogen tank 1, and improve the filling speed. The liquid material falls evenly into the bottom of the liquid nitrogen tank 1 through the open ports 31 at the lower ends of the multiple partition tubes 3 and is quickly frozen. The fallen products will not stick to each other, and due to the open ports 31 set at the lower ends of the partition tubes 3, the fallen products will be scattered to both sides of the partition tubes 3 and will not occupy the partition tubes 3. After the filling is completed, the partition plate 2 is taken out, and the partition tubes 3 can be taken out at the same time, which is convenient for cleaning the liquid nitrogen tank 1 and the partition tubes 3. The liquid nitrogen tank 1 is sealed to complete the filling.

[0028] Embodiment 2:

[0029] Different from Example 1, the liquid nitrogen tank 1 of this embodiment is cylindrical, a cover is provided on the top of the liquid nitrogen tank 1, a boss is provided inside the liquid nitrogen tank 1, a partition plate 2 is provided on the boss, a partition channel 21 is provided in the middle of the partition plate 2, a partition tube 3 is movably inserted in the partition channel 21, and parabolic openings 31 are provided on both sides of the bottom of the partition tube 3.

[0030] The liquid nitrogen tank 1 of this embodiment can be sealed after the feeding pump is removed during the filling process. The lid can be opened after the products are formed and stabilized, the partition tube 3 is removed, the partition plate 2 is taken out, the product and liquid nitrogen are poured out, and the liquid nitrogen tank 1 and the partition tube 3 are cleaned.

[0031] Example 3

[0032] The difference from Example 2 is that a hook is fixed inside the liquid nitrogen tank 1, one end of the hook is fixed to the inner wall of the liquid nitrogen tank 1 and the other end is free to move, and a partition plate 2 is hung on the free end of the hook. When cleaning after use, pour out the product and liquid nitrogen, take out the partition tube 3 from the partition plate 2, remove the partition plate 2 from the hook, and then clean the liquid nitrogen tank 1, the partition plate 2 and the partition tube 3 respectively.

[0033] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A multi-channel liquid nitrogen filling device, characterized in that: include: A liquid nitrogen tank (1) having a filling port (11); A partition plate (2) is arranged on the filling port (11) or in the liquid nitrogen tank (1), and a plurality of partition channels (21) are provided on the partition plate (2); A plurality of partition tubes (3), one partition tube (3) being movably inserted in each of the partition channels (21), the lower end of the partition tube (3) being located at the bottom of the liquid nitrogen tank (1), and an open opening (31) being provided on the side surface of the lower portion of the partition tube (3).

2. A multi-channel liquid nitrogen filling device as claimed in claim 1, characterized in that: The partition plate (2) is fixed in the liquid nitrogen tank in a hanging manner or a supporting manner.

3. A multi-channel liquid nitrogen filling device as claimed in claim 1, characterized in that: Two tube sheets (33) are symmetrically arranged at the lower end of the separation tube (3), and the open port (31) is located between the two tube sheets (33).

4. A multi-channel liquid nitrogen filling device as claimed in claim 3, characterized in that: The cross section of the opening (31) is rectangular.

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