CN211551154U

CN211551154U - Liquid nitrogen gasification system

Info

Publication number: CN211551154U
Application number: CN202020072924.3U
Authority: CN
Inventors: 张厚敏; 王大龙; 刘彬彬
Original assignee: Guangzhou Lizhong Jinshan Alloy Co ltd
Current assignee: Guangzhou Lizhong Jinshan Alloy Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-09-22
Anticipated expiration: 2030-01-14

Abstract

The present application relates to a liquid nitrogen gasification system. The liquid nitrogen gasification system described in the present application comprises: the device comprises a liquid nitrogen tank, a gasifier, a connecting pipe and a spraying pipe, wherein an outlet of the liquid nitrogen tank is connected with an inlet of the gasifier through the connecting pipe, and a pipe orifice of the spraying pipe is arranged above the gasifier; the vaporizer comprises a vaporizing tube and fins, the vaporizing tube is connected with the connecting tube, the fins are arranged on the outer wall of the vaporizing tube respectively, and the outlet of the spraying tube is arranged at the higher position of the fins and faces the fins. The liquid nitrogen gasification system has the advantages of eliminating the icing of the gasifier and promoting the gasification of the liquid nitrogen.

Description

Liquid nitrogen gasification system

Technical Field

The present application relates to gasification systems, and more particularly to liquid nitrogen gasification systems.

Background

When liquid nitrogen in the existing liquid nitrogen tank is gasified, the liquid nitrogen tank is connected with the gasifier through a pipeline, the gasification is carried out in the gasifier, and the liquid nitrogen absorbs the heat of the surrounding air in the gasification process, so that thick ice blocks are formed on the surface of the gasifier, the surface of the gasifier is wrapped, and the pipeline conveyed out by the liquid nitrogen tank is also wrapped with columnar thick ice blocks. Being encapsulated by ice can affect the gasification efficiency of the gasifier and affect the performance and life of the gasifier.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present application is to provide a liquid nitrogen gasification system having advantages of eliminating freezing of a gasifier and promoting gasification of liquid nitrogen.

One aspect of the application provides a liquid nitrogen gasification system, which comprises a liquid nitrogen tank, a gasifier, a connecting pipe and a spray pipe, wherein an outlet of the liquid nitrogen tank is connected with an inlet of the gasifier through the connecting pipe, and a pipe orifice of the spray pipe is arranged above the gasifier;

the vaporizer comprises a vaporizing tube and fins, the vaporizing tube is connected with the connecting tube, the fins are arranged on the outer wall of the vaporizing tube respectively, and the outlet of the spraying tube is arranged at the higher position of the fins and faces the fins.

This application liquid nitrogen gasification system drenches the vaporizer through the water of shower with the normal atmospheric temperature on to drench on fin and the vaporizer, thereby make fin and vaporizer adsorbed cold volume taken away fast, and provide fin and vaporizer certain heat, when guaranteeing gasification effect, take away cold volume, thereby promote the gasification.

Further, a plurality of the fins are arranged around the gasification tube and are distributed in a diffusion shape.

Further, still include first water catch bowl, this first water catch bowl sets up in the below of fin.

Further, a second water collecting tank is also included, the second water collecting tank is placed below the connecting pipe, and the transverse section of the connecting pipe is placed in the second water collecting tank;

the first water collecting tank is communicated with the second water collecting tank.

Furthermore, the multi-section gasification device comprises a plurality of S-shaped gasification pipes, a plurality of groups of S-shaped gasification pipes and fins thereof form a multi-layer gasification assembly, and the pipe orifice of the spray pipe is arranged at the first layer of the gasification assembly.

Further, the first water collection tank is disposed below the gasification assembly in a first tier.

Further, the water collecting device also comprises a water discharging pipe which is communicated with the bottom of the first water collecting tank.

Further, still include the gate valve, this gate valve sets up on the connecting pipe.

Further, the spraying device also comprises a spray head, and the spray head is arranged at the end part of the spraying pipe.

Further, the nozzle of the spray head is strip-shaped.

For a better understanding and practice, the present application is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a front view of an exemplary liquid nitrogen gasification system of the present application;

FIG. 2 is a schematic perspective view of an exemplary liquid nitrogen gasification system of the present application.

Detailed Description

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application. In the description of the present application, "a plurality" means two or more unless otherwise specified.

FIG. 1 is a front view of an exemplary liquid nitrogen gasification system of the present application; FIG. 2 is a schematic perspective view of an exemplary liquid nitrogen gasification system of the present application. Referring to fig. 1 and 2, an exemplary liquid nitrogen gasification system of the present application includes a liquid nitrogen tank 10, a gasifier 20, a connecting pipe 30 and a shower pipe 40, wherein an outlet of the liquid nitrogen tank 10 is connected to an inlet of the gasifier 20 through the connecting pipe 30, and a nozzle of the shower pipe 40 is disposed above the gasifier 20;

the vaporizer 20 includes a vaporizing tube 21 and fins 22, the vaporizing tube 21 is connected to the connecting tube 30, the fins 22 are respectively disposed on the outer wall of the vaporizing tube 21, and the outlet of the shower tube 40 is disposed at a higher position of the fins 22 and faces the fins 22.

In some preferred embodiments, a plurality of fins 22 are disposed around the vaporizing tube 21 and distributed in a diffused manner.

In some preferred embodiments, a first water collection groove 51 is further included, the first water collection groove 51 being disposed below the fins 22.

In some preferred embodiments, a second water collection tank 52 is further included, the second water collection tank 52 being placed below the connection pipe 30, and a cross section of the connection pipe 30 being placed inside the second water collection tank;

the first water collection tank 51 communicates with the second water collection tank 52.

In some preferred embodiments, the gasification device comprises a plurality of sections of S-shaped gasification tubes 21, a plurality of groups of S-shaped gasification tubes 21 and fins 22 thereof form a multi-layer gasification assembly, and the nozzle of the spray tube 40 is arranged at the first layer of the gasification assembly.

In some preferred embodiments, the first water collection tank 51 is disposed below the gasification module in the first tier.

In some preferred embodiments, a drain pipe 60 is further included, and the drain pipe 60 communicates with the bottom of the first sump 51.

In some preferred embodiments, a gate valve 70 is further included, and the gate valve 70 is disposed on the connection pipe 30.

In some preferred embodiments, a spray head (not shown) is further included, and is disposed at an end of the spray pipe 40.

In some preferred embodiments, the nozzles of the spray head are strip-shaped.

The working principle of the liquid nitrogen gasification system is as follows:

the liquid nitrogen in the liquid nitrogen tank 10 is sent out through the connection pipe 30, and the gate valve 70 is opened. Connecting pipe 30 includes the horizontal segment and indulges the section, indulges the section and is connected with liquid nitrogen container 10, and the horizontal segment transversely sets up, and second water catch bowl 52 sets up in the horizontal segment below to the horizontal segment of connecting pipe 30 is placed in second water catch bowl 52. The liquid nitrogen passes through the connection pipe 30, enters the gasification pipe 21 of the gasifier 20, sequentially flows through the plurality of sections of S-shaped gasification pipes 21, and is finally discharged, wherein the liquid nitrogen and the nitrogen have the same pressure in the whole process and are gasified by absorbing the surrounding heat.

The circulating water flows out of the shower pipe 40 and is sprayed from the spray head, the nozzle of which has a bar shape, so that the sprayed water spreads in a flat shape, flows down from the top of the vaporizer 20, is sprayed on the vaporizing pipe 21 and the fins 22, is sprayed on the vaporizing unit of the first layer, and then falls into the first water collecting tank 51, a large amount of collected water is stored in the first water collecting tank 51 and the second water collecting tank 52, and covers the lateral section of the connection pipe 30. Part of the collected water is discharged through the drain pipe 60. Whole drenching and the in-process of catchmenting, connecting pipe 30 is covered by water to carry out the precooling to the liquid nitrogen that connecting pipe 30 carried, carry the liquid nitrogen to vaporizer 20 when absorbing heat on every side, accelerated thermal absorption through the drenching, and prevented vaporizer 20 parcel ice-cube, promoted the liquid nitrogen and absorbed heat from the surrounding environment, when the cold volume was taken away to the drenching, also provided the heat. Therefore, in the whole liquid nitrogen gasification process, ice blocks are not formed on the pipeline and the gasifier 20 any more, and the gasification effect of the liquid nitrogen is fully guaranteed.

In order to better ensure the gasification of the liquid nitrogen, a plurality of gasifiers 20 can be arranged, and a plurality of spray pipes 40 are correspondingly arranged, so that the gasification speed is increased.

In addition, the cooled water can be recycled, and the cold energy can be recycled.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims

1. A liquid nitrogen gasification system is characterized in that: the gasifier comprises a liquid nitrogen tank, a gasifier, a connecting pipe and a spray pipe, wherein an outlet of the liquid nitrogen tank is connected with an inlet of the gasifier through the connecting pipe, and a pipe orifice of the spray pipe is arranged above the gasifier;

2. The liquid nitrogen gasification system of claim 1, wherein: the fins are arranged around the gasification tube and are distributed in a diffusion manner.

3. The liquid nitrogen gasification system of claim 2, wherein: still include first water catch bowl, this first water catch bowl sets up in the below of fin.

4. The liquid nitrogen gasification system of claim 3, wherein: the connecting pipe is characterized by further comprising a second water collecting tank, wherein the second water collecting tank is placed below the connecting pipe, and the transverse section of the connecting pipe is placed in the second water collecting tank;

5. The liquid nitrogen gasification system of claim 4, wherein: the multi-section gasification device comprises a plurality of S-shaped gasification pipes, a plurality of groups of S-shaped gasification pipes and fins thereof form a multi-layer gasification assembly, and the pipe orifice of the spray pipe is arranged at the first layer of the gasification assembly.

6. The liquid nitrogen gasification system of claim 5, wherein: the first water collection tank is arranged below the gasification assembly on the first layer.

7. The liquid nitrogen gasification system of claim 4, wherein: the water draining pipe is communicated with the bottom of the first water collecting tank.

8. The liquid nitrogen gasification system according to any one of claims 1 to 7, wherein: still include the gate valve, this gate valve sets up on the connecting pipe.

9. The liquid nitrogen gasification system according to any one of claims 1 to 7, wherein: the shower nozzle is arranged at the end part of the shower pipe.

10. The liquid nitrogen gasification system of claim 9, wherein: the nozzle of the spray head is strip-shaped.