CN105890410A

CN105890410A - Finned heat pipe exchanger for drying column

Info

Publication number: CN105890410A
Application number: CN201410677346.5A
Authority: CN
Inventors: 张国利
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-11-09
Filing date: 2014-11-09
Publication date: 2016-08-24

Abstract

The invention relates to a finned heat pipe exchanger for a drying column. The finned heat pipe exchanger comprises a heat conduction pipe and finned heat pipes. One end, without fins, of each finned heat pipe is inserted in the heat conduction pipe. The finned heat pipes and the heat conduction pipe are fixedly connected integrally at an angle of 20-90 degrees. The heat conduction pipe is communicated with a heat supply system. The finned heat pipes comprise vacuum pipes, the fins and heat conduction working mediums. A heat energy bearing heat conduction liquid passes through the heat conduction pipe to continuously conduct heat to and heat the bottom ends of the finned heat pipes. The heat conduction working mediums in the finned heat pipes can be continuously changed in phase for vaporization; and heat transfer and heat radiating are conducted through the pipe walls and the fins of the finned heat pipes. The finned heat pipe exchanger for the drying column is in contact with materials inside the drying column sufficiently, and can conduct heat transfer and heating on the materials and air directly; the heat energy conversion efficiency is high; and under the conditions of the same space and the same volume, the heat radiating area is increased by 8-30 times, the heat energy conduction and heat exchange is facilitated, the heat transfer speed of heat energy is increased, and heat energy is converted well.

Description

The fin heat pipe heat exchanger of drying tower

Technical field

The present invention relates to a kind of heat exchanger, be particularly used for the fin of a kind of drying tower that supporting grain drying tower uses Heat exchange of heat pipe.

Background technology

The heat energy of grain drying tower currently on the market is all the outer calandria heat exchanger heat exchange of tower, and the heat dissipation equipment in tower is with row Pipe heat exchanger carries out heat radiation heating, but the big area of dissipation of their heat exchanger volume is little, and heat transfer efficiency is low, and heat energy is changing In thermal process, loss is big, and the power of conduction heat energy is also required to the most high-power.

Hot pipe technique is that the one of the G.M.Grover invention of LosAlamos National Laboratory of the U.S. in 1963 is referred to as " heat Pipe " heat transfer element, it takes full advantage of the Rapid Thermal hereditary property of heat-conduction principle and refrigeration filling, through heat pipe will The heat of hot object is delivered to rapidly outside thermal source, and its capacity of heat transmission exceedes the capacity of heat transmission of any known metal.

Summary of the invention

The problem to be solved in the present invention is the deficiency overcoming prior art to exist, it is provided that use for supporting grain drying tower

The fin heat pipe heat exchanger of a kind of drying tower, the heat-conducting work medium in its fin heat pipe pipe is vaporized by the energy heats of heat pipe Phase transformation, phase-changeable gas carries out quick heat exchange, heat conduction by tube wall and the radiating fin of fin heat pipe, and its heat exchange area increases by 5 -30 times, expand heat conduction heat exchange amount, improve heat conduction heat transfer rate.

In order to arrive above-mentioned purpose, the present invention is achieved through the following technical solutions: the fin heat pipe heat exchange of a kind of drying tower Device is made up of heat pipe and fin heat pipe, and the fin one end that do not has of fin heat pipe is injected in heat pipe, fin heat pipe and heat pipe The angle becoming 20-90 ° is fixed connection and is fixed as one.

Described heat pipe is connection heating system；The heat energy of heating system is led by the heat-carrying conductive fluid in heat pipe Heat, heat pipe can add a hot recycle pump, so accelerate the flowing velocity of conductive fluid, and heat conduction heat transfer effect can be more preferably.

Described fin heat pipe is made up of vacuum tube, fin, heat-conducting work medium；

Described vacuum tube is the sealing device that metal is made, and it is pressure, air tight that the thickness of its tube wall, tightness need to arrive vacuum Requirement；

1, vacuum tube is metal tube, and the two ends up and down of metal tube are that end socket seals；The cross section of vacuum tube is toroidal.

2, there is heat-conducting work medium in the inner chamber of vacuum tube；

3, the pipe thickness of vacuum tube vacuum to be arrived requirement pressure, gastight；

Described heat-conducting work medium is sealed in vacuum tube；The intraductal atmospheric pressure of vacuum tube sets according to different requirement of gasification temperature Fixed different negative pressure pressure, it is also desirable to after design controls the gasification vapo(u)rous degree in vacuum tube, adds corresponding appropriate heat conduction Working medium；Heat-conducting work medium is water, or acetone, or the working medium such as ethanol.

There is fin above the upper end tube wall of described vacuum tube, be used for increasing heat exchange area, improve heat conduction, heat transfer rate；

1, fin is connected with vacuum tube and is fixed as one, and can be longitudinal shape according to different requirement connection status, or laterally shape Shape, or around shape；

2, different according to the material dried, the spacing between fin and fin is 2-50mm.

The present invention has the advantages that compared with existing heat abstractor: the fin heat pipe heat exchanger of a kind of drying tower and drying Material within tower sufficiently contacts, can be directly to material, air heat-exchange heating；Its thermal energy conversion efficiency is high, identical greatly In the case of little space, volume, area of dissipation adds 8-30 times, beneficially thermal energy conduction heat exchange, expands heat energy Heat transfer rate, heat energy well changed, energy-conserving and environment-protective.

Accompanying drawing illustrates:

Fig. 1, the structural representation of fin heat pipe heat exchanger for drying tower of the present invention；

Fig. 2, the structural representation of fin heat pipe of fin heat pipe heat exchanger for drying tower of the present invention；

Fig. 3, the cross section view of fin heat pipe of fin heat pipe heat exchanger for drying tower of the present invention.

Specifically execute mode:

The present invention is described further with embodiment below in conjunction with the accompanying drawings.

Embodiment:

As shown in Figure 1: the fin heat pipe heat exchanger of a kind of drying tower is made up of heat pipe (6) and fin heat pipe (4)；Fin The fin one end that do not has of heat pipe (4) is injected in heat pipe (6), the angle that fin heat pipe (4) is in 90 ° with heat pipe (6) The fixing connection of degree is fixed as one.

Described heat pipe (6) is connection heating system；The heat energy of heating system is by the heat-carrying in heat pipe (6) Conductive fluid (5) carrys out heat conduction.

As shown in Figure 2: fin heat pipe (4) is made up of vacuum tube (1), fin (3), heat-conducting work medium (2)； Described vacuum tube (1) is the sealing device that metal is made；

1, vacuum tube (1) is metal tube, and the two ends up and down of metal tube are that end socket seals；The cross section of vacuum tube (1) is round Shape.

2, having heat-conducting work medium (2) in vacuum tube (1) inner chamber, heat-conducting work medium (2) is water；

3, have fin (3) above vacuum tube (1) the upper end tube wall of fin heat pipe (4), vacuum tube (1) there is no fin (3) Lower end fixing seal is inserted in heat pipe (6).

As shown in Figure 3: fin (3) is connected with vacuum tube (1) and is fixed as one；Fin (3) and vacuum tube (1) Connection connection status is longitudinal shape；Spacing between fin (3) and fin (3) is 15mm.

When the fin heat pipe heat exchanger of drying tower works: the conductive fluid (5) being full of heat energy passes through heat pipe (6) to fin The bottom ceaselessly heat conduction heating of heat pipe (4), the heat-conducting work medium (2) in fin heat pipe (4) just can ceaselessly phase transformation Vaporization, comes heat exchange, heat radiation by the tube wall of fin heat pipe (4), fin, and the radiator of such grain drying tower is the most permissible Ceaselessly heat conduction heat exchange work.

Above example is only intended to help to understand preparation method and the core concept thereof of the present invention, is embodied as being not limited to Above-mentioned specific embodiment, those skilled in the art is from above-mentioned design, without performing creative labour, done Change, all fall within protection scope of the present invention.

Claims

1. the fin heat pipe heat exchanger of a drying tower, it is characterised in that: the fin heat pipe heat exchanger of grain drying tower is dried by one The fin heat pipe heat exchanger of tower is made up of heat pipe (6) and fin heat pipe (4)；Heat pipe (6) is connection heating system, The heat energy of heating system carrys out heat conduction by the conductive fluid (5) in heat pipe (6)；

Fin heat pipe (4) is made up of vacuum tube (1), fin (3), heat-conducting work medium (2)；

Vacuum tube (1) is metal tube, and the two ends up and down of metal tube are that end socket seals；

Heat-conducting work medium (2) is had in vacuum tube (1) inner chamber；

Fin (3) is had above vacuum tube (1) the upper end tube wall of fin heat pipe (4).

The fin heat pipe heat exchanger of a kind of drying tower the most according to claim 1, it is characterised in that: not having of fin heat pipe (4) Having fin (3) one end to inject in heat pipe (6), fin heat pipe (4) becomes the angle of 20 °-90 ° with heat pipe (6) State connection is fixed as one.

The fin heat pipe heat exchanger of a kind of drying tower the most according to claim 1, it is characterised in that: fin (3) and vacuum tube (1) connection is fixed as one, and its connection status is longitudinal shape, or transverse shapes, or around shape；Fin (3) and wing Spacing between sheet (3) is 2-50mm.