Quick freezing device

Abstract

The utility model discloses a quick freezing device which is characterized by comprising a shell and a refrigeration assembly in the shell, the refrigerating assembly comprises an upper tube plate above the shell, a lower tube plate below the shell and a plurality of heat exchange tubes assembled between the tube plates and liquid distributors, the liquid distributors are installed at the top ends of the heat exchange tubes, and the liquid distributors correspond to the heat exchange tubes one to one. A first liquid inlet and outlet and a second liquid inlet and outlet are formed in the upper portion and the lower portion of the side face of the shell respectively.

Description

Technical Field

[0001] The utility model relates to a quick-freezing device. Background Art

[0002] In the preparation of complex pharmaceutical preparations, the material needs to be rapidly cooled to below -8°C within a very short time during the preparation process to achieve rapid freezing, and then slowly heated and thawed before being transferred to the next process. This process needs to be operated in a sterile and airtight environment throughout, and the device should be able to achieve the functions of on-line cleaning and high-temperature steam sterilization. Summary of the Utility Model

[0003] In view of the above problems, the purpose of the present utility model is to provide a quick-freezing device that can be operated in a sterile and airtight environment and can achieve the functions of on-line cleaning and high-temperature steam sterilization.

[0004] The technical solution to realize the present utility model is as follows

[0005] A quick-freezing device includes a housing and a refrigeration component inside the housing; the refrigeration component includes an upper tube sheet above the housing, a lower tube sheet below the housing, and a plurality of heat exchange tubes assembled between the tube sheets and a liquid distributor. The top ends of the heat exchange tubes are all equipped with liquid distributors, and the liquid distributors correspond to the heat exchange tubes one by one; a first liquid inlet and outlet and a second liquid inlet and outlet are respectively arranged at the upper and lower parts on the side of the housing.

[0006] The liquid distributor is composed of a frustum-shaped exhaust body and a disc-shaped flow channel body; the exhaust body is located in the center of the groove of the flow channel body; a plurality of flow channels are evenly distributed along the outer edge of the flow channel body.

[0007] The housing is composed of an outer housing body, an upper end cover on the top surface of the outer housing body, and a lower end cover at the bottom end of the outer housing body.

[0008] A discharge port is provided on the lower end cover, and a feed port is provided on the upper end cover.

[0009] The feed port is externally connected to a feed pump.

[0010] An exhaust port is provided in the middle of the liquid distributor.

[0011] By adopting the above technical solution, the key point of the present device lies in the design of the liquid distributor. After the material enters the pipeline, it is quickly and evenly distributed to the inner wall of the pipe. The liquid passing capacity of the liquid distributor should just ensure that the liquid freezes before flowing to the lower end of the pipe, and no unfrozen material flows into the lower end cover.

[0012] 1. The material can be quickly frozen and thawed in a sealed environment; 2. The device has no sanitary dead corners and can be cleaned and sterilized on-line; 3. By increasing the volume, a larger processing capacity can be achieved to meet the needs of industrial production. Description of the Drawings

[0013] Figure 1 This is a schematic structural view of the present utility model;

[0014] Figure 2 This is a schematic structural view of the liquid distributor of the present utility model;

[0015] Figure 3 This is a three-dimensional structural view of the liquid distributor of the present utility model;

[0016] In the attached drawings, 1 is the upper end cover, 2 is the liquid distributor, 3 is the heat exchange tube, 4 is the housing, 5 is the lower tube sheet, 6 is the lower end cover, 7 is the upper tube sheet, 8 is the first liquid inlet and outlet, 9 is the second liquid inlet and outlet, 10 is the exhaust main body, 11 is the flow channel main body, 12 is the discharge port, 13 is the feed port, 14 is the exhaust port, 15 is the flow channel main body groove, and 16 is the flow channel. Specific embodiments

[0017] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0018] A quick-freezing device includes a housing and a refrigeration component inside the housing; the refrigeration component includes an upper tube sheet above the housing, a lower tube sheet 5 below the housing, and a plurality of heat exchange tubes assembled between the tube sheets and the liquid distributor. The top ends of the heat exchange tubes are all installed with liquid distributors, and the liquid distributors correspond to the heat exchange tubes one by one; the first liquid inlet and outlet and the second liquid inlet and outlet are respectively arranged on the upper and lower sides of the housing. Under the action of gravity, the material flows into the heat exchange tubes after passing through the liquid distributor. The flow channels of the liquid distributor are specially designed according to the material characteristics and the pipe diameter, and can realize the falling film distribution of the material, so that the material is evenly distributed on the inner wall of the pipe; the liquid refrigerant enters and exits through the first and second liquid inlets and outlets and circulates, so that the housing is filled with liquid refrigerant, and the refrigerant circulates through an external pipeline; the material in the pipe flows downward along the wall under gravity and is quickly cooled and solidified. The unfrozen liquid continues to flow downward and is cooled and solidified on the inner wall of the pipe.

[0019] The liquid distributor is composed of a frustum-shaped exhaust main body and a disc-shaped flow channel main body; the exhaust main body is located in the center of the flow channel main body groove; a plurality of flow channels are evenly distributed along the outer edge of the flow channel main body. The flow channels are all inclined downward to form a slope shape and are evenly distributed along the outer edge of the flow channel main body, which is convenient for the material to evenly flow into the heat exchange tubes below.

[0020] The housing is composed of a housing main body, an upper end cover 1 on the top surface of the housing main body, and a lower end cover 6 at the bottom end of the housing main body.

[0021] A discharge port is provided on the lower end cover, and a feed port is provided on the upper end cover.

[0022] The feed port is externally connected to a feed pump. The material is a solid-liquid mixture with a certain viscosity, and the material is pumped into the interface of the upper end cover by the pump.

[0023] An exhaust port is provided in the middle of the liquid distributor to facilitate the discharge of air in the pipe.

Claims

1. A quick freezing device, characterized in that: It includes a shell and a refrigeration component in the shell; the refrigeration component includes an upper tube plate above the shell, a lower tube plate below the shell, and a plurality of heat exchange tubes assembled between the tube plate and the liquid distributor, and a liquid distributor is installed on the top of each heat exchange tube, and the liquid distributor corresponds to the heat exchange tube one by one; the first liquid inlet and outlet and the second liquid inlet and outlet are respectively provided on the upper and lower sides of the shell.

2. A quick freezing device according to claim 1, characterized in that: The liquid distributor is composed of a truncated cone-shaped exhaust body and a disc-shaped flow channel body; the exhaust body is located in the center of the groove of the flow channel body; and a plurality of flow channels are evenly distributed on the outer edge of the flow channel body.

3. A quick freezing device according to claim 1, characterized in that: The shell body is composed of a shell body, an upper end cover on the top surface of the shell body and a lower end cover on the bottom end of the shell body.

4. A quick freezing device according to claim 3, characterized in that: The lower end cover is provided with a discharge port, and the upper end cover is provided with a feed port.

5. A quick freezing device according to claim 4, characterized in that: The feed port is externally connected to a feed pump.

6. A quick freezing device according to claim 1, characterized in that: An exhaust port is arranged in the middle of the liquid distributor.

Images