CN112944998A

CN112944998A - Mobius type heat exchanger pipeline mouth structure

Info

Publication number: CN112944998A
Application number: CN202110291256.2A
Authority: CN
Inventors: 李成君; 景宝金; 周佳; 王璞
Original assignee: 708th Research Institute of CSIC
Current assignee: 708th Research Institute of CSIC
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-06-11
Anticipated expiration: 2041-03-18
Also published as: CN112944998B

Abstract

The invention relates to a Mobius type heat exchanger pipeline port structure which comprises an input pipeline, a transfer pipeline, a heat exchange pipeline and connectors, wherein the input pipeline and the transfer pipeline are connected in a rotary sealing manner through a rotary sealing device; the four connectors are respectively used as an input port and an output port of LNG, and an input port and an output port of a heat-exchanged medium; the input pipeline and the transfer pipeline are connected in a detachable structure; the bottom of the transit pipeline is provided with a spring device, and the initial high rotation angular velocity is obtained by storing elastic potential energy. The heat exchanger pipeline opening structure is used as a matching structure of a Mobius type heat exchanger, and the pipeline sealing performance and the pipeline transmission realization factors are comprehensively considered. The heat exchanger has the characteristics of small occupied area, high heat exchange efficiency, no node fatigue problem and the like.

Description

Mobius type heat exchanger pipeline mouth structure

Technical Field

The invention relates to a heat exchanger pipe port of a heat exchanger, in particular to a Mobius-type-based heat exchanger pipe port for a Liquefied Natural Gas (LNG) system.

Background

The Mobius heat exchanger is easy to cause the winding and knotting of an input pipeline and a heat exchange pipeline because the pipeline needs to rotate continuously according to the conventional technology, so that the pipeline port suitable for the Mobius heat exchanger is designed, and the function of realizing the heat exchanger is indispensable.

For the pipe ports of the mobius type heat exchangers, a currently feasible method is to use a breakaway type pipe port, i.e., the pipe port of the input pipe is separated from the heat exchange pipe, and sealing measures are made to prevent air or liquid water from being mixed into the LNG.

In summary, the currently proposed mobius heat exchanger has the problem that the pipeline port of the conventional heat exchanger cannot work.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a Mobius type heat exchanger pipeline port structure.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a heat exchanger pipeline mouth structure of Mobius type, includes input pipeline, transfer pipeline, heat transfer pipeline, connector, the input pipeline passes through rotary seal device rotary seal with the transfer pipeline and is connected, the transfer pipeline nestification is inside the connector, rotates together with the connector, four connectors of heat transfer pipe connection.

Furthermore, the four connectors are respectively used as an input port and an output port of LNG, and an input port and an output port of a heat exchange medium.

Further, the connecting structure of the input pipeline and the transfer pipeline is a detachable structure.

Further, the bottom of the transit pipeline is provided with a spring device, and the initial high rotation angular velocity is obtained by storing elastic potential energy.

Further, the spring device comprises a sliding block and a spring, and the sliding block is installed at the bottom of the transfer pipeline through the spring.

Further, the transfer pipeline is connected with a connecting device pipeline through a passage from the transfer pipeline to the heat exchange pipeline, and the connecting device pipeline is connected with a connector.

Furthermore, the passage from the transit pipeline to the heat exchange pipeline adopts a form that the section is gradually reduced, and the shape adopts a center line offset form, so that rotation is generated through the action of bending moment.

Furthermore, an electric control valve of the transfer pipeline is connected between the input pipeline and the transfer pipeline, and the electric control valve is installed in a channel from the transfer pipeline to the heat exchange pipeline.

Furthermore, the rotary sealing device is composed of an inner rotary buckle of the input pipeline and an outer rotary buckle corresponding to the inner rotary buckle of the input pipeline, the inner rotary buckle of the input pipeline is arranged on the outer side wall of the input pipeline, and the outer rotary buckle corresponding to the inner rotary buckle of the input pipeline is arranged on the inner wall of the transit pipeline.

Furthermore, a sealing strip made of plastic is arranged between the inner rotating buckle and the outer rotating buckle.

The invention has the beneficial effects that:

the invention provides a Mobius type heat exchanger pipeline port, which has the following characteristics:

1. the pipeline is divided into 3 parts, wherein the first part is an input pipeline, the second part is a transfer pipeline, and the third part is a heat exchange pipeline;

2. the transfer pipeline is nested in the connector and rotates together with the connector, and the input pipeline and the transfer pipeline are detachable structures;

3. 4 connectors of the heat exchange pipeline are divided into an input port and an output port which are used as LNG and an input port and an output port of a heat exchange medium;

4. the spring device of the transit pipeline can store larger elastic potential energy so as to obtain larger initial rotation angular velocity;

5. the pipeline between the transit pipeline and the connector pipeline is in a gradually-reduced section form, a center line offset form is adopted in the shape, and rotation is generated under the action of bending moment.

Therefore, the heat exchanger pipe opening structure is used as a matching structure of the Mobius type heat exchanger, and the pipe sealing performance and the pipe transmission realization factors are comprehensively considered. The heat exchanger has the characteristics of small occupied area, high heat exchange efficiency, no node fatigue problem and the like.

Drawings

FIG. 1 is an assembly view of an input duct and a transit duct;

FIG. 2 is a cross-sectional view of a transfer conduit;

FIG. 3 is a schematic view of a transfer conduit and a heat exchange conduit;

in the figure, 11 is an input pipeline, 12 is an inner rotating buckle of the input pipeline, 21 is an outer side wall of a transfer pipeline, 22 is an outer rotating buckle corresponding to the inner rotating buckle of the input pipeline, 23 is an electric control valve of the transfer pipeline, 24 is an inner side wall of the transfer pipeline, 25 is the transfer pipeline, 26 is a sliding block, 27 is a spring, 31 is an electric control valve of a channel, 32 is a channel from the transfer pipeline to a heat exchange pipeline, 33 is a connecting device pipeline, and 34 is a connector.

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in fig. 1, 2 and 3, in the tube port structure of the mobius heat exchanger of the present invention, the heat exchanger tube is divided into 3 parts, the first part is an input tube 11, the second part is a transfer tube 25, and the third part is a heat exchange tube; the input pipeline 11 is connected with the transit pipeline 25 in a rotary sealing mode through a rotary sealing device. The transfer pipeline 25 is nested in the connector and rotates together with the connector, and the input pipeline 11 and the transfer pipeline 25 are detachable structures; the heat exchange pipeline is provided with four connectors which are divided into an input port and an output port used as LNG and an input port and an output port used as heat exchange media; the bottom of the transit pipeline 25 is provided with a spring device which can store larger elastic potential energy so as to obtain larger initial rotation angular velocity; the transit pipe 25 is connected with a connecting device pipe 33 through a transit pipe to heat exchange pipe passage 32, the connecting device pipe 33 is connected with a connector 34, the transit pipe to heat exchange pipe passage 33 adopts a form that the cross section is gradually reduced, and a center line offset form is adopted in shape, and rotation is generated through the action of bending moment.

The rotary sealing device consists of an inner rotary buckle 12 of the input pipeline and an outer rotary buckle 22 corresponding to the inner rotary buckle of the input pipeline. The inner rotary buckle 12 of the input pipeline is arranged on the outer side wall of the input pipeline 11, and the outer rotary buckle 22 corresponding to the inner rotary buckle of the input pipeline is arranged on the inner wall of the transit pipeline 25. A plastic sealing strip is arranged between the inner rotary buckle 12 and the outer rotary buckle 22. The spring means is composed of a slider 26 and a spring 27, and the slider 26 is mounted on the bottom of the transit pipe 25 through the spring 27. An electric control valve of the transfer pipeline is connected between the input pipeline 11 and the transfer pipeline 25,

in order to guarantee the watertight and airtight characteristics of the whole process, the input pipe 11 shown in fig. 1, after being subjected to vacuum treatment, is sealed by means of an inner rotary clasp 12 and an outer rotary clasp 22, wherein, a sealing strip made of plastic material is arranged between the inner rotary buckle 12 and the outer rotary buckle 22 to prevent air from being mixed in the LNG input process, then, as seen in fig. 2, when the LNG inside the incoming line 11 has accumulated to a certain amount, which can be considered as free from other impurities, the electric valve 23 of the transit line is opened by the electric valve, so that LNG is introduced into the transit passage 25, and when the LNG in the transit passage 25 is increased, the slider 26 gradually shortens the spring 27 to accumulate elastic potential energy, then the electric valve 23 of the transfer pipe is closed and the electric valve 31 of the passage is opened, and LNG enters the heat exchange pipe through the transfer pipe 25 to the connection device pipe 33 and gives the connection device an initial rotation angular velocity.

As shown in fig. 3, there are 4 connectors, one of which is an input line for LNG, one of which is an output line for natural gas, one of which is an input line for heat-exchanged gas, and one of which is an output line for heat-exchanged gas.

The output pipeline can output the natural gas after heat exchange in a mode of referring to the input pipeline. In the actual operation process, in order to protect the pipeline, the heat-exchanged medium should be input firstly.

The heat exchanger pipeline opening structure is used as a matching structure of a Mobius type heat exchanger. The Mobius principle and geometric model were discovered in 1858 by German mathematicians Mobius (Mobius, 1790-1868) and John Listedine.

Claims

1. The utility model provides a heat exchanger pipeline mouth structure of Mobius type, includes input pipeline, transfer pipeline, heat transfer pipeline, its characterized in that: the input pipeline is connected with the transfer pipeline in a rotary sealing mode through a rotary sealing device, the transfer pipeline is nested inside the connectors and rotates together with the connectors, and the heat exchange pipeline is connected with the four connectors.

2. The mobius-type heat exchanger tube port structure of claim 1, wherein: the four connectors are respectively used as an input port and an output port of LNG and an input port and an output port of a heat exchange medium.

3. The mobius-type heat exchanger tube port structure of claim 1, wherein: the input pipeline and the transfer pipeline are connected in a detachable structure.

4. The mobius-type heat exchanger tube port structure of claim 1, wherein: the bottom of the transit pipeline is provided with a spring device, and the initial high rotation angular velocity is obtained by storing elastic potential energy.

5. The Mobius-type heat exchanger tube port structure of claim 4, wherein: the spring device comprises a sliding block and a spring, and the sliding block is installed at the bottom of the transfer pipeline through the spring.

6. The mobius-type heat exchanger tube port structure of claim 1, wherein: the transfer pipeline is connected with a connecting device pipeline through a passage from the transfer pipeline to the heat exchange pipeline, and the connecting device pipeline is connected with a connector.

7. The Mobius-type heat exchanger tube port structure of claim 6, wherein: the passage from the transit pipeline to the heat exchange pipeline adopts a gradually-reduced cross section form, adopts a center line offset form in shape, and rotates under the action of bending moment.

8. The Mobius-type heat exchanger tube port structure of claim 6, wherein: an electric control valve of the transfer pipeline is connected between the input pipeline and the transfer pipeline, and the electric control valve is installed in a channel from the transfer pipeline to the heat exchange pipeline.

9. The mobius-type heat exchanger tube port structure of claim 1, wherein: the rotary sealing device is composed of an inner rotary buckle of the input pipeline and an outer rotary buckle corresponding to the inner rotary buckle of the input pipeline, the inner rotary buckle of the input pipeline is arranged on the outer side wall of the input pipeline, and the outer rotary buckle corresponding to the inner rotary buckle of the input pipeline is arranged on the inner wall of the transit pipeline.

10. The mobius-type heat exchanger tube port structure of claim 9, wherein: and a sealing strip made of plastic is arranged between the inner rotating buckle and the outer rotating buckle.