HEAT EXCHANGER CAPABLE OF AUTOMATICALLY ADJUSTING HEAT EXCHANGE AREA

Abstract

The present invention discloses a heat exchanger capable of automatically adjusting heat exchange area, which relates to the field of heat exchangers. The key points of the technical solution of the present invention include a heat exchange wall, which includes a fixed heat exchange wall, and a self-adjusting heat exchange wall that can automatically expand and contract according to the flow or temperature of the fluid to change the heat exchange area. The present invention can automatically change the heat exchange area, and timely respond and adapt to different working conditions, having simple structure, low production cost and good stability.

Description

FIELD OF THE INVENTION

The present invention relates to the field of heat exchangers, more particularly to a heat exchanger capable of automatically adjusting heat exchange area.

BACKGROUND OF THE INVENTION

A heat exchanger is important equipment in energy utilization and management; however, the heat exchanger, usually as a passive component, needs to be driven by the driving components of hot and cold fluids, so the heat exchange area of the heat exchanger is generally fixed.

The heat exchanger needs to work in a wide flow range of hot and cold fluids, but the heat exchanger with a fixed heat exchange area has a limited range of working conditions.

An existing Chinese patent with the authorized announcement number CN210892821U discloses a heat pipe heat exchanger with an adjustable heat exchange area, which comprises a box body, a fixed plate, a moving plate, a U-shaped pipe and a corrugated pipe, and can change the position of the moving plate to change the heat exchange area ratio.

However, the above-mentioned heat pipe heat exchanger with an adjustable heat exchange area still has the following problems: (1) It has complex structure, high production cost, easy failure and difficult maintenance; and (2) it requires personnel to actively adjust according to the working conditions, and cannot adapt to the changes of working conditions in time, increasing the control cost.

CONTENTS OF THE INVENTION

In view of the deficiencies in the prior art, the object of the present invention is to provide a heat exchanger capable of automatically adjusting heat exchange area, which can automatically change the heat exchange area, and timely respond and adapt to different working conditions, having simple structure, low production cost and good stability.

In order to achieve the above object, the present invention provides the following technical solution:

A heat exchanger capable of automatically adjusting heat exchange area is provided, including a heat exchange wall; the heat exchange wall includes a fixed heat exchange wall, and a self-adjusting heat exchange wall that can automatically expand and contract according to the flow or temperature of the fluid to change the heat exchange area.

Furthermore, the self-adjusting heat exchange wall is fixedly arranged on the inner or outer wall of the fixed heat exchange wall, the fixed heat exchange wall being provided with a through hole matched with the self-adjusting heat exchange wall.

Furthermore, the fixed heat exchange wall is provided with a plurality of the through holes, the self-adjusting heat exchange wall covering only one or simultaneously two or more of the through holes.

Furthermore, the self-adjusting heat exchange wall is sandwiched between two layers of the fixed heat exchange wall.

Furthermore, the self-adjusting heat exchange wall is connected between two of the fixed heat exchange walls.

Furthermore, the material of the self-adjusting heat exchange wall includes rubber.

Furthermore, the heat exchange wall includes a plane wall or a curved wall.

Furthermore, an elastic member is arranged between opposite two of the self-adjusting heat exchange walls.

Furthermore, at least one surface of the self-adjusting heat exchange wall is provided with an expansion net.

To sum up, the present invention has the following beneficial effects:

1. The self-adjusting heat exchange wall can be used to automatically change the heat exchange area, and timely respond and adapt to different working conditions, making the heat exchanger have simple structure, low production cost and good stability; and

2. the elastic member or the expansion net can be used to promote the reset of the self-adjusting heat exchange wall, thereby prolonging the service life of the self-adjusting heat exchange wall; besides, since the deformation and expansion capacity of the self-adjusting heat exchange wall is greatly affected by its own material characteristics, the elastic member or the expansion net is provided while the material of the self-adjusting heat exchange wall remains unchanged, so as to meet more fluid heat exchange requirements, which is beneficial to adjust the deformation and expansion capacity of the self-adjusting heat exchange wall, i.e., beneficial to adjust the variable range of the heat exchange area.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a heat exchanger capable of automatically adjusting heat exchange area according to Example 1;

FIG. 2 is a schematic structural diagram of a fixed heat exchange wall and a self-adjusting heat exchange wall according to Example 1;

FIG. 3 is a schematic structural diagram of a fixed heat exchange wall and a self-adjusting heat exchange wall according to Example 2;

FIG. 4 is a schematic structural diagram of a self-adjusting heat exchange wall and an elastic member according to Example 3; and

FIG. 5 is a schematic structural diagram of an expansion net and a self-adjusting heat exchange wall according to Example 4.

In the figures: 1. Fixed heat exchange wall; 11. Through hole; 2. Self-adjusting heat exchange wall; 3. Elastic member; 4. Expansion net.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present invention will be further described below in detail with reference to drawings.

These specific examples are only explanation, rather than limitation, of the present invention. Those skilled in the art can make modifications as needed without creative contribution to these examples after reading this description, the modifications being protected by the patent law as long as they are within the scope of the claims of the present invention.

Example 1

As shown in FIG. 1, a heat exchanger capable of automatically adjusting heat exchange area is provided, including a heat exchange wall; in this example, the heat exchange wall includes a fixed heat exchange wall 1, and a self-adjusting heat exchange wall 2 that can automatically expand and contract according to the flow or temperature of the fluid to change the heat exchange area; in this example, the self-adjusting heat exchange wall 2 can be used to automatically change the heat exchange area, and timely respond and adapt to different working conditions, making the heat exchanger have simple structure, low production cost and good stability; in this example, the self-adjusting heat exchange wall 2, having elastic force, can expand and contract, both of which can change the heat exchange area; preferably, in this example, the self-adjusting heat exchange wall 2 is made of rubber, and can certainly also be made of other materials, which is not limited here.

As shown in FIGS. 1 and 2, specifically, in this example, the self-adjusting heat exchange wall 2 is fixedly arranged on the inner or outer wall of the fixed heat exchange wall 1, the fixed heat exchange wall 1 being provided with a through hole 11 matched with the self-adjusting heat exchange wall 2; if the self-adjusting heat exchange wall 2 is arranged on the outer wall of the fixed heat exchange wall 1, the fluid at the inner side the fixed heat exchange wall 1 contacts the self-adjusting heat exchange wall 2 through the through hole 11, so that the self-adjusting heat exchange wall 2 expands and contracts to change the heat exchange area; if the self-adjusting heat exchange wall 2 is arranged on the inner wall of the fixed heat exchange wall 1, the fluid at the inner side the fixed heat exchange wall 1 contacts the self-adjusting heat exchange wall 2, so that the self-adjusting heat exchange wall 2 expands and contracts through the through hole 11 to change the heat exchange area; with a cold fluid and a hot fluid respectively located at the two sides of the self-adjusting heat exchange wall 2, the expansion and contraction of the self-regulating heat exchange wall 2 includes outward expansion and contraction or inward expansion and contraction according to different fluid states.

As shown in FIGS. 1 and 2, in this example, the fixed heat exchange wall 1 is provided with a plurality of through holes 11, and the self-adjusting heat exchange wall 2 covers the plurality of through holes 11, thereby facilitating processing; preferably, in this example, the self-adjusting heat exchange wall 2 is sandwiched between two layers of the fixed heat exchange wall 1 to form a three-layer heat exchange wall, thereby facilitating processing and improving structural strength and tightness; the heat exchange wall includes a plane wall or a curved wall to match different types of heat exchangers; of course, in other optional examples, the self-adjusting heat exchange wall 2 can also be connected between two of the fixed heat exchange walls 1, that is, the self-adjusting heat exchange wall 2 is annular as an intermediate pipe section, which is not limited here.

Example 2

The difference between a heat exchanger capable of automatically adjusting heat exchange area in this example as shown in FIG. 3 and that in Example 1 is as follows: In this example, the self-adjusting heat exchange wall 2 only covers one through hole 11 on the fixed heat exchange wall 1; specifically, in this example, both the through hole 11 and the self-adjusting heat exchange wall 2 are circular, with the diameter of the self-adjusting heat exchange wall 2 larger than that of the through hole 11; preferably, the self-adjusting heat exchange wall 2 is arranged on the outer wall of the fixed heat exchange wall 1 to facilitate installation; in this example, the self-adjusting heat exchange wall 2 can simplify the structure, reduce the cost, facilitate the installation, and ensure the heat exchange effect of the fixed heat exchange wall 1; specifically, the self-adjusting heat exchange wall 2 and the fixed heat exchange wall 1 are fixed together by bonding, and the fixed heat exchange wall 1 is welded with a fixed ring that tightly presses the sides of the self-adjusting heat exchange wall 2, so as to improve the stability and tightness of the connection. Of course, in other optional examples, other connection structures may also be adopted between the self-adjusting heat exchange wall 2 and the fixed heat exchange wall 1, as long as the tightness can be guaranteed.

Example 3

As shown in FIGS. 1-4, the difference between a heat exchanger capable of automatically adjusting heat exchange area in this example and that in Example 1 or 2 is as follows: In this example, an elastic member 3 is arranged between opposite two of the self-adjusting heat exchange walls 2, and includes a spring or an elastic band; the elastic member 3 can be used to promote the reset of the self-adjusting heat exchange wall 2, thereby prolonging the service life of the self-adjusting heat exchange wall 2; besides, since the deformation and expansion capacity of the self-adjusting heat exchange wall 2 is greatly affected by its own material characteristics, the elastic member 3 is provided while the material of the self-adjusting heat exchange wall 2 remains unchanged, so as to meet more fluid heat exchange requirements, which is beneficial to adjust the deformation and expansion capacity of the self-adjusting heat exchange wall 2, i.e., beneficial to adjust the variable range of the heat exchange area; in the initial state, the self-adjusting heat exchange wall 2 connected with the elastic member 3 may be flush with the fixed heat exchange wall 1, or extend toward the inner side of the fixed heat exchange wall 1, which is not limited here.

Example 4

As shown in FIGS. 1-5, the difference between a heat exchanger capable of automatically adjusting heat exchange area in this example and that in Example 1, 2 or 3 is as follows: In this example, at least one surface of the self-adjusting heat exchange wall 2 is provided with an expansion net 4; in this example, the expansion net 4 can be used to promote the reset of the self-adjusting heat exchange wall 2, thereby prolonging the service life of the self-adjusting heat exchange wall 2, and can also be used to adjust the deformation and expansion capacity of the self-adjusting heat exchange wall 2, i.e., be used to adjust the variable range of the heat exchange area; compared with the elastic member 3 in Example 3, the expansion net 4 in this example has the advantages of convenient installation and replacement.

Claims

1. A heat exchanger capable of automatically adjusting heat exchange area, comprising a heat exchange wall, characterized in that: the heat exchange wall includes a fixed heat exchange wall, and a self-adjusting heat exchange wall that can automatically expand and contract according to the flow or temperature of a fluid to change the heat exchange area.

2. The heat exchanger capable of automatically adjusting heat exchange area according to claim 1, characterized in that: the self-adjusting heat exchange wall is fixedly arranged on the inner or outer wall of the fixed heat exchange wall, the fixed heat exchange wall being provided with a through hole matched with the self-adjusting heat exchange wall.

3. The heat exchanger capable of automatically adjusting heat exchange area according to claim 2, characterized in that: the fixed heat exchange wall is provided with a plurality of the through holes, the self-adjusting heat exchange wall covering only one or simultaneously two or more of the through holes.

4. The heat exchanger capable of automatically adjusting heat exchange area according to claim 2, characterized in that: the self-adjusting heat exchange wall is sandwiched between two layers of the fixed heat exchange wall.

5. The heat exchanger capable of automatically adjusting heat exchange area according to claim 1, characterized in that: the self-adjusting heat exchange wall is connected between two of the fixed heat exchange walls.

6. The heat exchanger capable of automatically adjusting heat exchange area according to claim 1, characterized in that: the material of the self-adjusting heat exchange wall includes rubber.

7. The heat exchanger capable of automatically adjusting heat exchange area according to claim 1, characterized in that: the heat exchange wall includes a plane wall or a curved wall.

8. The heat exchanger capable of automatically adjusting heat exchange area according to claim 2, characterized in that: an elastic member is arranged between opposite two of the self-adjusting heat exchange walls.

9. The heat exchanger capable of automatically adjusting heat exchange area according to claim 1, characterized in that: at least one surface of the self-adjusting heat exchange wall is provided with an expansion net.