CN210135803U

CN210135803U - Fin heat exchanger

Info

Publication number: CN210135803U
Application number: CN201920451552.2U
Authority: CN
Inventors: 姜磊
Original assignee: Zhuhai Dun'an Thermal Engineering Technology Co ltd
Current assignee: Zhuhai Dun'an Thermal Engineering Technology Co ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-03-10
Anticipated expiration: 2029-04-02

Abstract

The utility model discloses a finned heat exchanger, including the heat exchanger casing, insert the many heat exchange tubes that locate the heat exchanger casing, and the pressure manifold; the heat exchange tubes are arranged at intervals, one end of each heat exchange tube is connected and communicated to the collecting pipe, and the other end of each heat exchange tube is sealed; the heat exchange device comprises a header pipe, a heat exchange medium and a heat exchange medium, wherein the header pipe is arranged in the heat exchange pipe, a gap for the circulation of the heat exchange medium is arranged between the heat exchange inner pipe and the inner wall of the corresponding heat exchange pipe, a flow collecting inner pipe is arranged in the header pipe, a gap for the circulation of the heat exchange medium is arranged between the header pipe and the corresponding flow collecting inner pipe, one end of. The utility model discloses with the heat exchange tube, constitute the mobile return circuit of heat transfer medium business turn over on this fin heat exchanger jointly with heat transfer inner tube, pressure manifold and mass flow inner tube cooperation to this basic function that realizes the during operation heat transfer of this fin heat exchanger makes this fin heat exchanger whole small, and the material cost who corresponds is low.

Description

Fin heat exchanger

Technical Field

The utility model belongs to the technical field of the heat exchanger is relevant, especially relate to a fin heat exchanger.

Background

The fin heat exchanger is the most widely used heat exchange equipment in gas and liquid heat exchangers, and at present, the existing fin heat exchanger comprises two rows of heat exchange tubes, and the two rows of heat exchange tubes are arranged along the longitudinal direction of the fin heat exchanger, so that heat exchange media can form a loop which enters and exits on the fin heat exchanger, and the heat exchange performance of the fin heat exchanger is realized by utilizing the heat conduction when the heat exchange media flow on the fin heat exchanger.

It can be understood that, the above-mentioned fin heat exchanger is transversely provided with two rows of heat exchange tubes to need to set up two pressure manifold for this supporting, make the whole volume of the fin heat exchanger who corresponds the obtaining big, can not satisfy people and correspond miniaturized user demand of fin heat exchanger.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a fin heat exchanger to solve the technical problems in the prior art.

The finned heat exchanger comprises a heat exchanger shell, a plurality of heat exchange tubes and a collecting pipe, wherein the heat exchange tubes are inserted into the heat exchanger shell; the heat exchange tubes are arranged at intervals, one end of each heat exchange tube is connected and communicated to the collecting pipe, and the other end of each heat exchange tube is sealed; the heat exchange tube comprises a header pipe, a header pipe and a heat exchange tube, wherein the header pipe is internally provided with a heat exchange inner tube, a gap for circulating a heat exchange medium is formed between the heat exchange inner tube and the inner wall of the corresponding heat exchange tube, a collecting inner tube is arranged in the header pipe, a gap for circulating the heat exchange medium is formed between the header pipe and the corresponding collecting inner tube, one end of the heat exchange inner tube penetrates through the header pipe and is communicated to the collecting inner tube, and the other end of the heat exchange inner tube.

As the preferred scheme of the utility model, be provided with the import pipe on the mass flow inner tube, be provided with the outlet pipe on the pressure manifold, the import pipe with the outlet pipe for the pressure manifold outwards stretches out.

As the preferable scheme of the utility model, the outlet pipe with import pipe parallel arrangement each other.

As the preferred embodiment of the present invention, the diameter of the outlet pipe is equal to or larger than the diameter of the inlet pipe.

As the preferred scheme of the utility model, the mass flow inner tube paste lean on the inner wall of pressure manifold, and for pressure manifold connection is fixed.

As the preferred scheme of the utility model, the length of collection flow inner tube is less than the length of pressure manifold.

As the preferred scheme of the utility model, the heat transfer inner tube sets up the middle part of heat exchange tube.

As the preferred scheme of the utility model, the pipe diameter less than or equal to of heat transfer inner tube corresponds the half of heat exchange tube pipe diameter.

As the preferred scheme of the utility model, the heat transfer inner tube stretches into the adjacent correspondence of one side of heat exchange tube the tip setting of heat exchange tube.

Or, the fin heat exchanger comprises a heat exchanger shell, a row of heat exchange tubes inserted in the heat exchanger shell, and a collecting pipe connected and communicated with the heat exchange tubes; the fin heat exchanger also comprises a loop assembly, so that a loop for the heat exchange medium to flow in and out is formed on the fin heat exchanger; the loop assembly comprises a plurality of heat exchange inner tubes arranged in the heat exchange tubes and a current collecting inner tube arranged in the current collecting tube, wherein the heat exchange inner tubes are connected and communicated with the current collecting inner tube.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the fin heat exchanger provided by the utility model, through reasonable structure setting, enables the available heat exchange tube of the fin heat exchanger to cooperate with the heat exchange inner tube, the collecting pipe and the collecting inner tube to jointly form a loop of heat exchange medium flowing in and out on the fin heat exchanger, thereby realizing the basic function of heat exchange when the fin heat exchanger works; and the single row of heat exchange tube sets up for this fin heat exchanger's whole is small, and the material cost who corresponds is low, and then satisfies people and corresponds miniaturized user demand of fin heat exchanger.

Drawings

Fig. 1 is a front view of a fin heat exchanger according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a fin heat exchanger according to an embodiment of the present invention.

10, a heat exchanger shell; 20. a heat exchange pipe; 30. a header pipe; 31. an outlet pipe; 40. a heat exchange inner tube; 41. connecting a bent pipe; 50. a current collecting inner pipe; 51. an inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 and 2, a fin heat exchanger according to an embodiment of the present invention includes a heat exchanger housing 10, a plurality of heat exchange tubes 20 inserted into the heat exchanger housing 10, and a header pipe 30 connected and communicated with the plurality of heat exchange tubes 20, wherein a heat exchange inner tube 40 and a header pipe 50 connected with the plurality of heat exchange inner tubes 40 are respectively disposed in each heat exchange tube 20, and the header pipe 50 is disposed inside the header pipe 30. Wherein, the length of the collecting inner pipe 50 is less than that of the collecting main 30.

In this embodiment, a plurality of heat exchange tubes 20 are sequentially arranged at intervals along the longitudinal direction of the heat exchanger shell 10, wherein a part of the plurality of heat exchange tubes 20 inside the heat exchanger shell 10 is fixed with fins (not shown), one end of the heat exchange tube extending out of the heat exchanger shell 10 is connected with the collecting pipe 30, and the other end of the heat exchange tube is sealed. That is, the fin heat exchanger of the present embodiment has a row of heat exchange tubes 20, and one header 30 for connecting with the row of heat exchange tubes 20.

Each heat exchange inner tube 40 is arranged inside the corresponding heat exchange tube 20, a gap for circulating a heat exchange medium is formed between each heat exchange inner tube 40 and the inner wall of the corresponding heat exchange tube 20, one end of each heat exchange inner tube 40 penetrates through the collecting pipe 30 and is communicated to the collecting inner tube 50, and the other end of each heat exchange inner tube is opened and extends into the corresponding heat exchange tube 20.

In this embodiment, the heat exchange inner tube 40 is disposed in the middle of the heat exchange tube 20, and the diameter of the heat exchange inner tube 40 is less than or equal to one half of the corresponding diameter of the heat exchange tube 20, so that a heat exchange medium introduced by the heat exchange inner tube 40 flows into the heat exchange tube 20 from an opening at one end of the heat exchange inner tube 40, which is disposed inside the heat exchange tube 20, and can be timely discharged from the corresponding heat exchange tube 20, thereby ensuring the smoothness of the heat exchange medium flowing on the fin heat exchanger. Specifically, the heat exchange medium flowing out of the heat exchange inner tube 40 may flow out of the heat exchange tube 20 at a gap between the heat exchange inner tube 40 and the inner wall of the corresponding heat exchange tube 20.

Further, one side of the heat exchange inner tube 40 extending into the heat exchange tube 20 is adjacent to the corresponding end of the heat exchange tube 20, so that a heat exchange medium discharged from the heat exchange inner tube 40 can pass through the whole heat exchange tube 20 and is discharged outwards along one direction of the heat exchange tube 20 as far as possible, thereby ensuring the heat exchange efficiency of the heat exchange tube 20.

In the present embodiment, the collecting inner tube 50 abuts against an inner wall of the collecting main 30 and is fixed to the collecting main 30, and the collecting main 30 and the collecting inner tube 50 may be fixed by welding.

The two heat exchange inner tubes 40 arranged at the two outer sides are respectively connected with the end parts at the two sides of the current collecting inner tube 50 through connecting bent tubes 41, and the remaining heat exchange inner tubes 40 are arranged at intervals along the longitudinal direction of the current collecting inner tube 50 and are respectively connected with the current collecting inner tube 50. That is, the assembly of the plurality of heat exchange inner tubes 40 and the header inner tube 50 in the fin heat exchanger according to the present embodiment is specifically realized by connecting and fixing the header inner tube 50 and the header 30.

In the present embodiment, the collecting inner pipe 50 is provided with an inlet pipe 51, and the inlet pipe 51 extends outward relative to the collecting main 30; the collecting main 30 is provided with an outlet pipe 31. Preferably, the outlet pipe 31 and the inlet pipe 51 are arranged in parallel to each other to facilitate connection between the finned heat exchanger and an external pipeline. And the caliber of the outlet pipe 31 is larger than or equal to that of the inlet pipe 51, so that the heat exchange medium is ensured to be discharged outwards from the fin heat exchanger in time.

In summary, in the fin heat exchanger of the present embodiment, when the fin heat exchanger works, a heat exchange medium is introduced into the inner collecting tube 50 from the inlet tube 51 on the inner collecting tube 50, the heat exchange medium flowing into the inner collecting tube 50 flows to the plurality of inner heat exchange tubes 40 connected to the inner collecting tube 50, because each inner heat exchange tube 40 is opened at one end far away from the inner collecting tube 50 and is disposed in the corresponding heat exchange tube 20, the heat exchange medium flowing out of the inner heat exchange tube 40 flows from the heat exchange tube 20 to the collecting tube 30 through a gap between an outer wall of the inner heat exchange tube 40 and an inner wall of the heat exchange tube 20 in the heat exchange tube 20, and is finally discharged outward from the outlet tube 31 on the collecting tube 30, so as to realize the flow of the heat exchange medium entering and exiting on the fin heat exchanger, thereby realizing the basic function of heat exchange when the.

By last knowing, the utility model discloses a fin heat exchanger sets up through reasonable structure, available heat exchange tube 20, with heat transfer inner tube 40, pressure manifold 30 and mass flow inner tube 50 cooperation constitute the mobile return circuit of heat transfer medium business turn over on this fin heat exchanger jointly, and then realize the basic function of this fin heat exchanger during operation heat transfer, compare and have two rows of heat exchange tubes on the current fin heat exchanger, and the structure of two pressure manifolds, played the whole volume that reduces fin heat exchanger, reduce material cost's effect, and then satisfy people and correspond the miniaturized user demand of fin heat exchanger.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A fin heat exchanger comprises a heat exchanger shell, a plurality of heat exchange tubes inserted in the heat exchanger shell and a collecting pipe; the heat exchange tubes are arranged at intervals, one end of each heat exchange tube is connected and communicated to the collecting pipe, and the other end of each heat exchange tube is sealed; the heat exchange tube is characterized in that a heat exchange inner tube is arranged inside each heat exchange tube, a gap for circulating a heat exchange medium is formed between each heat exchange inner tube and the inner wall of the corresponding heat exchange tube, a flow collecting inner tube is arranged in each flow collecting tube, a gap for circulating the heat exchange medium is formed between each flow collecting tube and the corresponding flow collecting inner tube, one end of each heat exchange inner tube penetrates through each flow collecting tube and is communicated to the corresponding flow collecting inner tube, and the other end of each heat exchange inner tube is opened and extends into the corresponding heat.

2. The finned heat exchanger of claim 1, wherein: the collecting pipe is characterized in that an inlet pipe is arranged on the collecting inner pipe, an outlet pipe is arranged on the collecting pipe, and the inlet pipe and the outlet pipe extend outwards relative to the collecting pipe.

3. The finned heat exchanger of claim 2, wherein: the outlet pipe and the inlet pipe are arranged in parallel.

4. The finned heat exchanger of claim 3, wherein: the caliber of the outlet pipe is larger than or equal to that of the inlet pipe.

5. The finned heat exchanger of claim 1, wherein: the collecting inner pipe is attached to the inner wall of the collecting pipe and is fixedly connected with the collecting pipe.

6. The finned heat exchanger of claim 5, wherein: the length of the collecting inner pipe is less than that of the collecting pipe.

7. The finned heat exchanger of claim 1, wherein: the heat exchange inner pipe is arranged in the middle of the heat exchange pipe.

8. The finned heat exchanger of claim 7, wherein: the pipe diameter of the heat exchange inner pipe is less than or equal to one half of the pipe diameter of the corresponding heat exchange pipe.

9. The finned heat exchanger of claim 1, wherein: the heat exchange inner pipe extends into one side of the heat exchange pipe and is arranged close to the end part of the corresponding heat exchange pipe.

10. A fin heat exchanger comprises a heat exchanger shell, a row of heat exchange tubes inserted in the heat exchanger shell, and a collecting pipe connected and communicated with the heat exchange tubes; the method is characterized in that: the fin heat exchanger also comprises a loop assembly, so that a loop for the heat exchange medium to flow in and out is formed on the fin heat exchanger; the loop assembly comprises a plurality of heat exchange inner tubes arranged in the heat exchange tubes and a current collecting inner tube arranged in the current collecting tube, wherein the heat exchange inner tubes are connected and communicated with the current collecting inner tube.