CN218821831U

CN218821831U - Heat pipe heat exchanger

Info

Publication number: CN218821831U
Application number: CN202223025257.1U
Authority: CN
Inventors: 张宏; 张建东; 丁爱栋; 范文斌
Original assignee: Jiangsu Jiangguo Intelligent Equipment Co ltd
Current assignee: Jiangsu Jiangguo Intelligent Equipment Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-04-07
Anticipated expiration: 2032-11-15

Abstract

The utility model discloses a heat pipe exchanger relates to heat exchanger technical field. Wherein, this heat pipe exchanger includes: an elliptical tube; the pull support rod penetrates through the elliptical tube along the short axis direction; the heat pipe is inserted into the elliptical pipe along the long axis direction of the elliptical pipe; and the fins are arranged at one end, where the heat pipe is not inserted, of the heat pipe. The utility model discloses, the collection box that solves heat pipe exchanger adopts the pipe structure, but owing to receive the restriction of pipe diameter size, the length that the heat pipe inserted the collection box will be less than the pipe internal diameter, the event can appear the condition that heat transfer area arranged in the collection box is not enough, consequently, go deep into the length of collection box in order to increase the heat pipe, must increase the internal diameter of collection box, will cause because the collection box is the pressure-bearing component, increase weight and the cost that the internal diameter can increase the collection box rapidly, and the increase of collection box width direction size, heat pipe exchanger's size and occupation of land have greatly been enlarged, cause the problem of arranging the difficulty even.

Description

Heat pipe heat exchanger

Technical Field

The utility model relates to a heat exchanger technical field especially relates to a heat pipe exchanger.

Background

At present, a common heat pipe exchanger is structured in such a way that a header is made of a circular tube, one end of the heat pipe exchanger is inserted into the header, a liquid medium flows through the header, and the liquid medium washes a heat pipe body at the end. The other end of the heat pipe is usually welded with a plurality of fins for expanding the area of the heated surface, the end is arranged in a flow channel for gas flowing, and the gas flowing scours the fins and the pipe body of the heat pipe at the end of the heat pipe. The two ends of the heat pipe are respectively washed away by gas-liquid media, and heat is transferred from the high-temperature media to the low-temperature media through the pipe body of the heat pipe, so that the purpose of heat exchange is achieved. But compared with a circular tube structure, the pressure-bearing capacity in the tube of the elliptical tube structure is greatly reduced, and the application of the elliptical tube in the pressure-bearing part is greatly influenced.

The header of the heat pipe exchanger adopts a circular pipe structure, but because of the limitation of the diameter size of the circular pipe, the length of the heat pipe inserted into the header is lower than the inner diameter of the circular pipe, so the condition that the heat transfer area arranged in the header is insufficient can occur, therefore, in order to increase the length of the heat pipe penetrating into the header, the inner diameter of the header must be increased, and the problem that the pressure-bearing capacity in the pipe of the oval pipe structure is greatly reduced compared with the circular pipe structure, and the application of the oval pipe in the pressure-bearing part is greatly influenced because the header is a pressure-bearing part, the weight and the manufacturing cost of the header can be rapidly increased by increasing the inner diameter, and the size and the occupied area of the heat pipe exchanger are greatly enlarged by increasing the size of the header in the width direction. In view of the above problems, no effective solution has been proposed.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: a heat pipe heat exchanger is provided to solve the above problems in the prior art.

The technical scheme is as follows: a heat pipe heat exchanger comprising: an elliptical tube; the pull support rod penetrates through the elliptical tube along the short axis direction of the elliptical tube; the heat pipe is inserted into the elliptical pipe along the long axis direction of the elliptical pipe; the fins are arranged at one end, where the heat pipe is not inserted, of the heat pipe; the heat pipe is inserted into the elliptical pipe, so that the heat transfer area of the heat pipe in the elliptical pipe is increased, and the pressure bearing capacity of the elliptical pipe is improved by arranging the pull support rod in the elliptical pipe.

Preferably, the junction between the pull support rod and the outer surface of the elliptical tube is fixedly connected through welding and sealing.

Preferably, the number of the pull support rods is multiple, and the multiple pull support rods are arranged at the short axis of the elliptical tube at intervals.

Preferably, the distance between adjacent tension braces is not more than 1/3 of the major axis dimension of the elliptical tube.

Preferably, a gap is formed between one end of the heat pipe located in the elliptical pipe and the inner wall of the elliptical pipe in the long axis direction.

Preferably, the gap has a distance of 3mm to 5mm.

Preferably, the number of the heat pipes is multiple, and the multiple heat pipes are respectively arranged in the interval between the adjacent stay bars.

Preferably, the junction between the heat pipe and the outer surface of the elliptical pipe is fixedly connected through welding and sealing.

Preferably, the number of the fins is multiple, and the multiple fins are arranged on the heat pipe at intervals.

Preferably, the oval tube is provided with a first through hole along the minor axis direction thereof, and the oval tube is provided with a second through hole along one side of the major axis direction thereof.

Has the beneficial effects that: in the embodiment of the application, the elliptical tube is used as the header, the stay bar is additionally arranged in the elliptical tube, the heat pipe is inserted into the elliptical tube, so that the heat transfer area of the heat pipe in the elliptical tube is increased, and the stay bar is arranged in the elliptical tube, so that the pressure bearing capacity of the elliptical tube is improved, and the purposes of increasing the heat transfer area of the heat pipe and improving the pressure bearing capacity of the elliptical tube are achieved, thereby achieving the technical effects of reducing the floor area of the header and reducing the manufacturing cost.

Drawings

FIG. 1 is a front view of the heat pipe exchanger of the present invention;

fig. 2 is a left side view of the heat pipe exchanger of the present invention.

The reference signs are: 1. an elliptical tube; 2. a heat pipe; 3. a fin; 4. a stay bar is pulled; 5. a gap.

Detailed Description

In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "coupled" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1-2, the present application relates to a heat pipe heat exchanger. This kind of heat pipe exchanger includes: an elliptical tube 1; in the design of boilers and heat exchangers, pressure-bearing pipes with elliptical cross sections have various advantages such as structural arrangement and heat transfer forms due to the cross sectional shapes of long and short shafts and in some cases, relative to a four-way symmetrical structure of the cross section of a circular pipe, and therefore, the pressure-bearing pipes are widely applied. The elliptical tube 1 can achieve a good medium bearing effect, and can achieve a good matching effect with other components. Furthermore, the oval pipe 1 adopts a round pipe as a raw material, and is flattened under an oval die to form the oval cross-section pressure-bearing pipe. Furthermore, after the elliptical tube 1 is formed, two rows of through holes are symmetrically and oppositely formed in the elliptical tube 1 along the length direction and the central line of the short axis of the cross section of the elliptical tube 1, and the through holes are used for welding the pull support rod 4. When the wall thickness of the elliptical tube 1 is designed, the major axis is used as the equivalent diameter to calculate according to the circular tube. The bearing strength in the short axis direction is elastically braced by bracing rods 4 at intervals on the premise of calculating the wall thickness in the long axis direction.

And a pull stay 4 penetrating along the short axis direction of the elliptical tube 1. Because of oval 1 structural attribute, its intraductal pressure-bearing capacity descends by a wide margin, has greatly influenced the application of oval 1 in the pressure-bearing member, so in this application, run through in oval 1 minor axis direction and be provided with pull rod 4, can realize that oval 1 has high pressure-bearing capacity to improve oval 1's performance greatly. A row of tension brace rods 4 welded at the position of a short axis of the cross section of the elliptical tube 1 has a strong tension brace effect when the elliptical tube 1 bears internal pressure, the pressure bearing capacity after tension brace can be calculated by adopting a professional GB/T169907 strength calculation standard, and meanwhile, the arrangement distance of the tension brace rods 4 can be calculated according to a GB/T16508 standard method. Furthermore, the junction of the stay bar 4 and the outer surface of the elliptical tube 1 is fixedly connected by welding and sealing. A good tight fixation effect can be achieved, thereby ensuring the structural stability and the tightness of the elliptical tube 1.

The heat pipe 2 is inserted into the elliptical pipe 1 along the long axis direction of the elliptical pipe 1; the heat pipe 2 is a heat transfer element which transfers heat by relying on the phase change of working liquid in the heat pipe 2, and the heat pipe 2 and the header can form a heat exchanger of which the medium on one side is liquid and the medium on the other side is gas. Can realize good heat exchange effect and has various excellent performances. The fin 3 is arranged at one end of the heat pipe 2, which is not inserted; the fins 3 are fixedly arranged at one end of the heat pipe 2, so that the heat exchange surface area of the heat exchange device can be increased, and the heat exchange effect is improved. Furthermore, the number of the fins 3 is multiple, and the multiple fins 3 are arranged on the heat pipe 2 at intervals. The effect of further improving the heat exchange efficiency can be realized.

The heat transfer area of the heat pipe 2 in the elliptical pipe 1 is increased by inserting the heat pipe 2 in the elliptical pipe 1. Through adopting oval pipe 1 as the collection box, and use with 2 equipment coordination of heat pipe, because of 1 major axis of oval pipe is longer, so heat pipe 2 inserts more deeply along 1 major axis direction of oval pipe to increase heat transfer area, can also realize not enlarging the effect of collection box width simultaneously, thereby realize reducing area, reduce the weight of collection box, reduce cost and be convenient for the effect of arranging.

The heat exchange principle of the heat pipe exchanger is as follows:

liquid medium needing heat exchange flows through the header; the other end of the heat pipe 2 welded with the fin 3 as an extended heating surface is inserted into a medium of gas needing heat exchange; two media, wherein the hot medium needs to be arranged below the cold medium, so that the inside of the heat pipe 2 can perform high-efficiency heat transfer by 'evaporation-gravity flow'.

From the above description, it can be seen that the following technical effects are achieved by the present application:

in the embodiment of the application, the elliptical tube 1 is used as a header and the stay bar 4 is additionally arranged in the elliptical tube 1, the heat pipe 2 is inserted into the elliptical tube 1, so that the heat pipe 2 is positioned in the elliptical tube 1, the heat transfer area is increased, the stay bar is arranged in the elliptical tube 1, the pressure bearing capacity of the elliptical tube 1 is improved, and the purposes of increasing the heat transfer area of the heat pipe 2 and improving the pressure bearing capacity of the elliptical tube 1 are achieved, so that the technical effects of reducing the floor area of the header and reducing the manufacturing cost are achieved, the problem that the header of the heat pipe 2 heat exchanger adopts a circular tube structure is solved, but due to the limitation of the diameter size of the circular tube, the length of the heat pipe 2 inserted into the header is smaller than the inner diameter of the circular tube, so that the situation that the heat transfer area arranged in the header is insufficient, in order to increase the length of the heat pipe 2 penetrating into the header, the inner diameter of the header must be increased, the inner diameter of the header is also caused by the fact that the header is a part, the increased inner diameter can rapidly increase the weight and the manufacturing cost of the header, and the increase of the width direction size of the heat pipe 2, and the pressure bearing capacity of the heat pipe are greatly increased, and the problem that the pressure bearing capacity of the heat pipe is greatly reduced in the elliptical tube structure, and the application of the elliptical tube structure is greatly reduced.

Furthermore, the number of the stay bars 4 is multiple, and the stay bars 4 are arranged at the short axis of the elliptical tube 1 at intervals. The plurality of pull support rods 4 are arranged at the center of the short shaft of the elliptical tube 1, so that the effect of integrally improving the pressure bearing performance of the elliptical tube 1 can be realized.

Further, a gap 5 is formed between one end of the heat pipe 2 located in the elliptical pipe 1 and the inner wall of the elliptical pipe 1 along the long axis direction. By providing the gap 5, it is possible to prevent the inner wall of the elliptical tube 1 and the end of the heat pipe 2 from interfering with each other due to thermal expansion, thereby preventing damage to the elliptical tube 1. Further, the gap 5 has a distance of 3mm to 5mm. It is possible to ensure a sufficient insertion depth of the heat pipe 2 while preventing the occurrence of interference, thereby obtaining a good heat transfer area.

Furthermore, the number of the heat pipes 2 is multiple, and the multiple heat pipes 2 are respectively arranged in the intervals between the adjacent stay bars 4. Through being provided with many heat pipes 2, can realize improving heat exchange efficiency's effect, set up heat pipe 2 between adjacent stay bar 4 simultaneously, can realize improving the effect of structural strength and stability. Preferably, the heat pipe 2 is located at the center of the adjacent stay 4. The stability of the heat exchanger structure can be further improved. Furthermore, the junction of the heat pipe 2 and the outer surface of the elliptical pipe 1 is fixedly connected by welding and sealing. A good tight fixation effect can be achieved, thereby ensuring the structural stability and the tightness of the elliptical tube 1.

Further, the distance between the adjacent stay rods 4 is not more than 1/3 of the long axis dimension of the elliptical tube 1. Because the two vertex lines of the stay bars 4 and the major axis of the elliptical tube 1 arranged in a row are responsible for supporting the tube wall in the whole collapsing direction, the support range of the stay bars 4 is a circle with the stay bars 4 as the center, and therefore, the distance between the adjacent stay bars 4 is not more than 1/3 of the dimension of the major axis of the elliptical tube 1 for uniform bracing.

Furthermore, the elliptical tube 1 is provided with a first through hole along the minor axis direction thereof in a penetrating manner, and the elliptical tube 1 is provided with a second through hole along one side of the major axis direction thereof. Through having run through in oval 1's minor axis direction and having seted up first through-hole, can realize supplying the effect that vaulting pole 4 passes through to realize good compound effect, and then realize improving oval 1 structural strength's effect. Meanwhile, the second through hole is formed in the long axis direction of the elliptical tube 1, so that the effect that the heat supply tube 2 is inserted into the cavity of the elliptical tube 1 can be achieved, and a good heat transfer effect is achieved.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical solutions of the present invention can be subjected to various equivalent transformations within the scope of the technical idea of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A heat pipe heat exchanger, comprising:

an elliptical tube (1);

the pull stay bar (4) penetrates through the elliptical tube (1) along the short axis direction;

the heat pipe (2) is inserted into the elliptical pipe (1) along the long axis direction of the elliptical pipe (1); and

the fins (3) are arranged at one end, which is not inserted, of the heat pipe (2);

the heat pipe (2) is inserted into the oval pipe (1), so that the heat transfer area of the heat pipe (2) in the oval pipe (1) is increased, and the pressure bearing capacity of the oval pipe (1) is improved by arranging the pull support rod (4) in the oval pipe (1).

2. A heat pipe exchanger according to claim 1, wherein the tie-rod (4) and the oval pipe (1) are fixedly connected by welding and sealing at the interface.

3. A heat pipe exchanger according to claim 1, wherein the number of the tie-brace rods (4) is multiple, and the tie-brace rods (4) are arranged at intervals at the short axis of the elliptical pipe (1).

4. A heat pipe heat exchanger according to claim 1, characterised in that the spacing between adjacent tie-braces (4) is no more than 1/3 of the major axis dimension of the oval pipe (1).

5. A heat pipe heat exchanger according to claim 1, characterized in that the heat pipe (2) has a gap (5) between one end inside the oval pipe (1) and the inner wall in the direction of the major axis of the oval pipe (1).

6. A heat pipe exchanger according to claim 5, characterised in that the distance of the gap (5) is 3-5 mm.

7. A heat pipe exchanger according to claim 3, wherein the number of the heat pipes (2) is plural, and the plural heat pipes (2) are respectively disposed in the interval between the adjacent stay bars (4).

8. A heat pipe exchanger according to claim 1, wherein the junction between the heat pipe (2) and the outer surface of the elliptical pipe (1) is fixedly connected by welding and sealing.

9. A heat pipe exchanger according to claim 1, wherein the number of the fins (3) is a plurality of fins, and the plurality of fins (3) are arranged at intervals on the heat pipe (2).

10. A heat pipe exchanger according to claim 1, wherein the oval pipe (1) is provided with a first through hole extending therethrough along the minor axis direction thereof, and the oval pipe (1) is provided with a second through hole along one side of the major axis direction thereof.