CN203550725U

CN203550725U - Needle-type heat exchanger unit

Info

Publication number: CN203550725U
Application number: CN201320763307.8U
Authority: CN
Inventors: 程波; 李朝祥
Original assignee: Anhui University of Technology AHUT
Current assignee: Anhui University of Technology AHUT
Priority date: 2013-11-28
Filing date: 2013-11-28
Publication date: 2014-04-16
Anticipated expiration: 2023-11-28

Abstract

The utility model discloses a needle-type heat exchanger unit, and belongs to the technical field of heat exchanger units. The needle-type heat exchanger unit comprises a heat conducting stick and heat exchange surfaces, wherein the heat conducting stick penetrates through one heat exchange surface, passes through heat exchange media and then penetrates out from the other heat exchange surface, and the heat conducting stick is of a bar-shaped structure and is fixed to the two heat exchange surfaces through welding. According to the needle-type heat exchanger unit, the heat conducting stick penetrates through one heat exchange surface, passes through the heat exchange media and then penetrates out from the other heat exchange surface; due to the fact that the heat conducting stick makes direct contact with the heat exchange media, heat is transmitted to the parts, outside the heat exchange surfaces, of the heat conducting stick from the part, located in the heat exchange media, of the heat conducting stick, heat transmission is carried out by the heat conducting stick and the heat exchange surfaces at the same time, and thus the heat exchange area is enlarged; through the insertion of the heat conducting stick, fluid turbulent flow is intensified, the heat exchange coefficient is increased, and heat exchange efficiency is improved.

Description

A kind of pin type heat exchanger unit

Technical field

The utility model relates to heat exchanger unit technical field, especially relates to a kind of pin type heat exchanger unit.

Background technology

Heat exchanger is that the part heat of hot fluid is passed to cold fluid, makes fluid temperature (F.T.) reach the exchange heat equipment of technological process set quota, claims again heat exchanger.Heat exchanger is widely used in boiler HVAC field as heat-transfer equipment, and along with the develop rapidly of power-saving technology, the kind of heat exchanger is more and more.

In prior art, heat exchanger unit is that the method can only transfer heat to heat conductive rod by heat exchange surface by heat conductive rod being welded or pasting the heat exchange surface in needs strengthening, and heat exchange efficiency is not high.For the problems referred to above, some improved plans are also provided on market, this scheme only can improve the heat exchange efficiency of a side, more effective for solution-air heat exchange, but the gas-gas heat transfer effect for homophase is not obvious, still keep away unavoidably and can only heat can be passed to heat conductive rod by heat exchange surface, cause the problem that heat exchange efficiency is low.

Through patent retrieval, existing similar open about the technical scheme that how to improve heat exchange efficiency.As: Chinese patent publication No. CN 102706203 A, date of publication is on October 3rd, 2012, invention and created name is: a kind of pin type heat exchange unit, this application case discloses a kind of pin type heat exchange unit, by single heat conduction wire rod by being bent to form, this heat exchange unit can weld or paste on the surface that needs heat exchange and improve its heat exchange efficiency after shaping, this heat exchange unit can be by being combined into heat exchange core body with heat conduction baffle, for the fluid of the free convection by its runner or forced convertion provides heat exchange.The weak point of this application case is: its thermal conductive wire can only be in heat conduction baffle outside or inner side, and heat can only pass to thermal conductive wire by heat conduction baffle surface, and heat exchange efficiency is low.

In addition, Chinese Patent Application No.: 201110061199.5, the applying date: 2011-03-10, innovation and creation are by name: a kind of heat-exchanger rig, this application case comprises inner sleeve, be located at the overcoat of inner sleeve outside, be located at water inlet and the gap at overcoat top and be located at the delivery port of jacket bottom, in described, put many heat pipes are installed, in one section of insertion flue of described heat pipe, the residue section of described heat pipe is stayed in the annular gap of inner sleeve outside, described heat pipe comprises thin-walled interior tube body, the outer wall of described thin-walled interior tube body is provided with radial longitudinally continuous external fin fin, the outside of described external fin fin is coated with a thin-walled outer tube body.This application case is high to boiler afterheat utilization rate, functional strong, but in this application case, heat pipe is just inserted on flue sidewall, and, through heat transferring medium, the flow-disturbing effect of heat exchanging medium is not poor, and heat exchange efficiency still needs further raising.

Utility model content

1. the technical problem that utility model will solve

For heat exchange unit in prior art, exist heat exchange efficiency low, and the poor deficiency of flow-disturbing effect of heat exchanging medium, provides a kind of pin type heat exchanger unit, adopt the technical solution of the utility model, by heat conductive rod and heat exchange surface, carry out heat transmission simultaneously, expanded heat exchange area; The insertion of heat conductive rod, has strengthened the flow-disturbing of fluid, has improved the coefficient of heat transfer, has improved heat exchange efficiency.

2. technical scheme

For achieving the above object, the technical scheme that the utility model provides is:

A kind of pin type heat exchanger unit of the present utility model, comprises heat conductive rod and heat exchange surface, and described heat conductive rod penetrates from a heat exchange surface, and by passing from another heat exchange surface after heat transferring medium, this heat conductive rod is list structure.

Furthermore, described heat conductive rod is fixed by welding on two heat exchange surfaces.

Furthermore, to be positioned at the length ratio that the length of heat transferring medium and heat conductive rod stretch out heat exchange surface be 1:0.3 ~ 1.0 to described heat conductive rod.

3. beneficial effect

The technical scheme that adopts the utility model to provide, compared with existing known technology, has following remarkable result:

(1) a kind of pin type heat exchanger unit of the present utility model, its heat conductive rod penetrates from a heat exchange surface, by passing from another heat exchange surface after heat transferring medium, because heat conductive rod directly contacts with heat transferring medium, heat passes to the heat conductive rod part of heat exchange surface outside from the heat conductive rod part in heat transferring medium, heat conductive rod and heat exchange surface carry out heat transmission simultaneously, have expanded heat exchange area; The insertion of heat conductive rod, has strengthened the flow-disturbing of fluid, has improved the coefficient of heat transfer, has improved heat exchange efficiency;

(2) a kind of pin type heat exchanger unit of the present utility model, its heat conductive rod is fixed by welding on two heat exchange surfaces, and connected mode is fixing reliable, and cost is low.

Accompanying drawing explanation

Fig. 1 is a kind of pin type heat exchanger unit structural representation of the present utility model.

Fig. 2 be a kind of pin type heat exchanger unit of the present utility model be combined with pipe form heat exchanger structure schematic diagram.

Label declaration in schematic diagram: 1, heat conductive rod; 2, heat exchange surface.

The specific embodiment

For further understanding content of the present utility model, by reference to the accompanying drawings the utility model is described in detail.

As shown in Figure 1, a kind of pin type heat exchanger unit of the present utility model, comprises heat conductive rod 1 and heat exchange surface 2, heat conductive rod 1 penetrates from a heat exchange surface 2, by passing from another heat exchange surface 2 after heat transferring medium, heat exchange surface 2 can form runner in conjunction with peripheral housing, in runner, is heat transferring medium.This heat conductive rod 1 is list structure, heat conductive rod 1 is fixed by welding on two heat exchange surfaces 2, detailed process is as follows: first on heat exchange surface 2, offer the hole of matching with heat conductive rod 1, then insert heat conductive rod 1, and by brazing mode, heat conductive rod 1 is fixed on two heat exchange surfaces 2.It is 1:0.3 ~ 1.0 that heat conductive rod 1 is positioned at the length ratio that the length of heat transferring medium and heat conductive rod 1 stretch out heat exchange surface 2, by test and theory analysis, when heat conductive rod 1 is positioned at length ratio that the length of heat transferring medium and heat conductive rod 1 stretch out heat exchange surface 2 and is 1:0.3 ~ 1.0, its heat exchange efficiency is higher, especially when heat conductive rod 1 is positioned at length ratio that the length of heat transferring medium and heat conductive rod 1 stretch out heat exchange surface 2 and is 1:0.6, its heat exchange efficiency is the highest.

As shown in Figure 2, a kind of pin type heat exchanger unit of the present utility model is combined with pipe and is formed circular pipe type heat exchanger, heat exchange surface 2 is now pipe surface, heat transferring medium flows through in pipe, for the heat conductive rod 1 being in pipe heats, heat passes to from the heat conductive rod 1 in heat transferring medium the heat conductive rod 1 that is positioned at heat exchange surface 2 outsides, to reach the object of heat exchange.A kind of pin type heat exchanger unit of the present utility model, because heat conductive rod 1 directly contacts with heat transferring medium, heat passes to heat conductive rod 1 part of heat exchange surface 2 outsides from heat conductive rod 1 part in heat transferring medium, and heat conductive rod 1 and heat exchange surface 2 carry out heat transmission simultaneously, have expanded heat exchange area; And due to the insertion of heat conductive rod 1, strengthened the flow-disturbing of fluid, improved the coefficient of heat transfer, improved heat exchange efficiency.

Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection domain of the present utility model.

Claims

1. a pin type heat exchanger unit, comprise heat conductive rod (1) and heat exchange surface (2), it is characterized in that: described heat conductive rod (1) penetrates from a heat exchange surface (2), by passing from another heat exchange surface (2) after heat transferring medium, this heat conductive rod (1) is list structure.

2. a kind of pin type heat exchanger unit according to claim 1, is characterized in that: described heat conductive rod (1) is fixed by welding on two heat exchange surfaces (2).

3. a kind of pin type heat exchanger unit according to claim 2, is characterized in that: it is 1:0.3 ~ 1.0 that described heat conductive rod (1) is positioned at the length ratio that the length of heat transferring medium and heat conductive rod (1) stretch out heat exchange surface (2).