CN202382619U

CN202382619U - Heat exchanger for rotating heat exchange surface to enhance heat exchange

Info

Publication number: CN202382619U
Application number: CN201120567163XU
Authority: CN
Inventors: 赵无非; 朱国庆
Original assignee: 711th Research Institute of CSIC
Current assignee: 711th Research Institute of CSIC
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-08-15
Anticipated expiration: 2021-12-29

Abstract

The utility model relates to a heat exchanger, in particular to a heat exchanger for fluid with poorer viscous fluidity. The heat exchanger can be applied to the fields of chemical industry, petrifaction, foods, medicines, paper making industry, ships and the like. The heat exchanger comprises a casing, an inner cylinder, a motor, a heat exchange medium a, a heat exchange medium b, a bearing a and a bearing b, wherein a fluid inlet and a fluid outlet are respectively arranged in the upper end and the lower end of the casing and are positioned in two ends of the casing; through holes are respectively formed in the left end and the right end of the casing; annular grooves are formed in the through holes; and two ends of the inner cylinder are of a necked structure. According to the heat exchanger, the heat exchange surface is enabled to rotate, the heat exchange area is enlarged and the disturbance is increased to realize the effect for enhancing the heat exchange; and the interpenetration between the heat exchange medium a and the heat exchange medium b is avoided. According to the heat exchanger disclosed by the utility model, the sealing connection between a rotating pipeline and the outer cylinder is non-elastic body contacted movable seal, so that the interpenetration of two heat exchange media can be prevented.

Description

A kind of heat exchanger that makes the heat-transfer surface rotation strengthen heat exchange

Technical field

The utility model relates to a kind of heat exchanger, and the heat exchanger of the mobile relatively poor fluid of particularly a kind of thickness can be used for fields such as chemical industry, petrochemical industry, food, medicine, papermaking, boats and ships.

Background technology

The heat exchange critical piece of traditional heat exchangers is actionless; Rely on heat transferring medium in heat exchanger, to flow; Two kinds of media carry out hot heat exchange at the heat exchanger wall, in order to improve hot heat exchange effect, have taked various heat-transfer surface shapes and have improved velocity of medium; To improve the Re number, reach the increase coefficient of heat transfer; To increase fluid resistance and increase velocity of medium,, when the design heat exchanger, can not nothing increase flow velocity with placing restrictions on because resistance and flow velocity are quadratic relations; Therefore at present design of heat exchanger can only be between flow velocity and resistance seeking balance; Just the coefficient of heat transfer is difficult to improve in certain limit again, in order to satisfy the heat exchange of big flow, big heat, can only reach the heat exchange requirement to increase heat exchange area; Therefore the heat exchange area of large heat exchanger often reaches several thousand square metres; Volume is very huge, and consume material also is surprising, gives and makes, moves, keeps in repair and all bring problems.Especially for the high slumpability fluid, because mobile poor, flow velocity is generally lower like crude oil, heavy oil, residual oil, pitch, paper pulp etc., and fluid often is in laminar condition at the boundary-layer of tube wall, and heat transfer intensity is difficult to improve.The present invention is directed to this problem and propose to make the heat-transfer surface rotation, also promptly force fluid to strengthen flowing, and the non-one-way of the motion vector of fluid, make the boundary-layer of heat transferring medium constantly be sheared destruction, therefore can effectively strengthen the coefficient of heat transfer.

The utility model content

The purpose of the utility model is to overcome the defective that exists in the prior art, designs a kind of new type heat exchanger that makes the inner core rotation, can strengthen heat exchange.

To achieve these goals, the technical scheme of the utility model provides a kind of heat exchanger that makes the heat-transfer surface rotation strengthen heat exchange, comprises that housing, inner core, motor, heat are changed medium a, heat is changed medium b, bearing a and bearing b; Be provided with fluid intake and outlet in the housing top and bottom, fluid intake and outlet are positioned at the two ends of housing; Right ends at housing has through hole, on through hole, has cannelure; The two ends of inner core are throat structure;

Its annexation: inner tube installation is in housing; One end of inner core connects rotation pipeline a, the other end connects rotation pipeline b; The outer ring of bearing a, bearing b is fixedly mounted in the groove of housing two ends through hole; The inner ring of bearing a is fixedly connected with rotating pipeline a, and the inner ring of bearing b is fixedly connected with rotation pipeline b; Rotate pipeline a, rotate pipeline b stretch out housing and with housing between for movable sealing is connected, rotation pipeline a, inner core and rotation pipeline b are confined space; Motor is connected with the part that rotation pipeline a stretches out housing; Heat is changed medium a and is flowed into inner core again by rotating pipeline b outflow by rotation pipeline a, and heat is changed medium b and flowed out by the fluid issuing of housing lower end by the entering of the fluid intake on housing housing again.

On the inner and outer wall of inner core, disturbance component is installed; Disturbance component is preferably pin.

Or be laid with axial hollow fin at said inner core periphery.

Said rotation pipeline a, rotate between pipeline b and the housing and contact movable sealing for inelastic body.

It is that driving-belt or gear-box are connected that said motor stretches out housing parts with rotation pipeline a.

The utility model is to realize like this; The utility model is installed; Starter motor, motor rotates turning cylinder with belt drive, in the time of starter motor; Heat is changed medium a and is flowed into inner core again by rotating pipeline b outflow by rotation pipeline a, and heat is changed medium b and flowed out by the fluid issuing of housing lower end by the entering of the fluid intake on housing housing again.Because inner core rotates at a high speed, the heat transferring medium of inner core the inside is rotated the wall that the centrifugal force that produces is thrown to hollow inner core at a high speed, because flowing of the effect of centrifugal force and impact and heat transferring medium itself improves the coefficient of heat transfer of heat transferring medium.

The advantage and the beneficial effect of the utility model are: because the utility model takes said structure, make the heat-transfer surface rotation, and enlarge heat exchange area, increase disturbance and reach the enhancing heat exchange, and heat transferring medium a, heat transferring medium b do not interpenetrate; Because the said rotation pipeline of the utility model is tightly connected to inelastic body contacts movable sealing with said urceolus, can prevent two kinds of mutual seepages of heat transferring medium.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 has the inner tube structure sketch map of disturbance component for the utility model.

Fig. 3 is that the A of Fig. 2 is to view.

Fig. 4 has the inner tube structure sketch map of hollow fin for the utility model.

Fig. 5 is that the A of Fig. 4 is to view.

Wherein, 1-housing; The 2-inner core; 3-rotates pipeline a; 4-rotates pipeline b; 5-bearing a; 6-bearing b; The 7-motor; The 8-disturbance component; The hollow fin of 9-.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is further described.Following examples only are used for more clearly explaining the technical scheme of the utility model, and can not limit the protection domain of the utility model with this.

According to shown in Figure 1, the technical scheme of the utility model provides a kind of heat exchanger that makes the heat-transfer surface rotation strengthen heat exchange, comprises that housing 1, inner core 2, motor 7, rotation pipeline a3, rotation pipeline b4, heat are changed medium a, heat is changed medium b, bearing a5 and bearing b6; Be provided with fluid intake and outlet in housing 1 top and bottom, fluid intake and outlet are positioned at the two ends of housing; Right ends at housing 1 has through hole, on through hole, has cannelure; The two ends of inner core 2 are throat structure;

Its annexation: inner core 2 is installed in the housing 1; One end of inner core 2 connects rotation pipeline a3, the other end connects rotation pipeline b4; The outer ring of bearing a5, bearing b6 is fixedly mounted in the groove of housing 1 two ends through hole; The inner ring of bearing a5 is fixedly connected with rotating pipeline a3, and the inner ring of bearing b6 is fixedly connected with rotation pipeline b4; Rotate pipeline a3, rotate pipeline b4 stretch out housing 1 and with housing 1 between for movable sealing is connected, rotating pipeline a3, inner core 2 and rotation pipeline b4 is confined space; Motor 7 is connected with the part that rotation pipeline a3 stretches out housing 1; Heat is changed medium a and is flowed into inner core 2 and flow out by rotating pipeline b4 by rotating pipeline a3, and heat is changed medium b and got into housing 1 by the fluid intake of housing 1 upper end and flowed out by the fluid issuing of housing 1 lower end.

According to Fig. 2, shown in Figure 3, disturbance component 8 is installed on the inner and outer wall of inner core 1; Disturbance component 8 is preferably pinned, and the diameter of disturbance component is 5～10mm, and the length of disturbance component is 10～40mm.

According to Fig. 4, shown in Figure 5, be laid with axial hollow fin 9 at said inner core 1 periphery.

Said rotation pipeline a3, rotate between pipeline b4 and the housing 1 and contact movable sealing for inelastic body.

It is that driving-belt or gear-box are connected that said motor 7 stretches out housing 1 part with rotation pipeline a3.

The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims

1. a heat exchanger that makes the heat-transfer surface rotation strengthen heat exchange is characterized in that: comprise housing (1), inner core (2), motor (7), rotate pipeline a (3), rotate pipeline b (4), bearing a (5) and bearing b (6); Be provided with fluid intake and outlet in housing (1) top and bottom, fluid intake and outlet are positioned at the two ends of housing; Right ends at housing (1) has through hole, on through hole, has cannelure; The two ends of inner core (2) are throat structure;

Its annexation: inner core (2) is installed in the housing (1); One end of inner core (2) connects rotation pipeline a (3), the other end connects rotation pipeline b (4); The outer ring of bearing a (5), bearing b (6) is fixedly mounted in the groove of housing (1) two ends through hole; The inner ring of bearing a (5) is fixedly connected with rotating pipeline a (3), and the inner ring of bearing b (6) is fixedly connected with rotation pipeline b (4); Rotate pipeline a (3), rotate pipeline b (4) stretch out housing (1) and with housing (1) between for movable sealing is connected, rotating pipeline a (3), inner core (2) and rotation pipeline b (4) is confined space; Motor (7) is connected with the part that rotation pipeline a (3) stretches out housing (1); Heat is changed medium a and is flowed into inner core (2) again by rotating pipeline b (4) outflow by rotation pipeline a (3), and heat is changed medium b and flowed out by the fluid issuing of housing (1) lower end by the entering housing of the fluid intake on the housing (1) (1) again.

2. the heat exchanger that makes the heat-transfer surface rotation strengthen heat exchange according to claim 1 is characterized in that: disturbance component (8) is installed on the inner and outer wall of inner core (2).

3. the heat exchanger that makes the heat-transfer surface rotation strengthen heat exchange according to claim 2 is characterized in that: said disturbance component (8) is pin.

4. the heat exchanger that makes the heat-transfer surface rotation strengthen heat exchange according to claim 1 is characterized in that: be laid with axial hollow fin (9) at said inner core (2) periphery.

5. according to each described heat exchanger that makes heat-transfer surface rotation strengthen heat exchange of claim 1 to 4, it is characterized in that: said rotation pipeline a (3), rotate between pipeline b (4) and the housing (1) and contact movable sealing for inelastic body.

6. according to each described heat exchanger that makes the heat-transfer surface rotation strengthen heat exchange of claim 1 to 4, it is characterized in that: said motor (7) stretches out housing (1) part with rotation pipeline a (3) and is connected for driving-belt or gear-box.