CN212362898U

CN212362898U - Heat exchanger and heat exchange system with same

Info

Publication number: CN212362898U
Application number: CN202020357880.9U
Authority: CN
Inventors: 王冠军; 魏文建
Original assignee: Zhejiang Dunan Thermal Technology Co Ltd
Current assignee: Zhejiang Dunan Thermal Technology Co Ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2021-01-15
Anticipated expiration: 2030-03-20

Abstract

The utility model provides a heat exchanger, which comprises a first collecting pipe, a second collecting pipe and a plurality of groups of heat exchange pipes, wherein each group of heat exchange pipes comprises a plurality of micro pipes, the micro pipes are arranged at intervals, and two ends of each micro pipe are respectively connected with the first collecting pipe and the second collecting pipe; and the multiple groups of heat exchange tubes are arranged in a stacked manner along the direction from one end of the first collecting pipe to the other end of the second collecting pipe. The utility model provides a heat exchanger, when the condensate water condenses on the heat exchange tube, because the setting of arranging at a plurality of microtubes interval, the condensate water can be followed the interval gap between the microtube and flowed to the heat exchanger discharge condensate water of being convenient for prevents that the condensate water from influencing the heat transfer. The utility model also provides a heat transfer system, this heat transfer system include foretell heat exchanger. The utility model provides a heat transfer system is through setting up foretell heat exchanger for condensate water among the heat transfer system can discharge smoothly, prevents that condensate water from influencing heat transfer system's heat transfer effect, and then is favorable to the normal heat transfer of heat transfer system.

Description

Heat exchanger and heat exchange system with same

Technical Field

The utility model belongs to the technical field of the heat transfer, concretely relates to heat exchanger and have heat transfer system of this heat exchanger.

Background

The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and plays an important role in industrial production. The existing heat exchanger is in the heat exchange process, condensed water generated by heat exchange is condensed on the heat exchange tube, and the condensed water condensed on the heat exchange tube is not easy to flow out due to the structural characteristic of the existing heat exchanger, so that the heat exchange efficiency of the heat exchanger is reduced, the heat exchanger group cannot meet the corresponding heat exchange requirement, and the energy consumption is increased.

SUMMERY OF THE UTILITY MODEL

In view of this, there is a need for a heat exchanger and a heat exchange system having the same, which aims to enhance the drainage of condensed water on the heat exchanger, further enhance the heat exchange efficiency of the heat exchanger, and reduce energy consumption.

The utility model provides a heat exchanger, which comprises a first collecting pipe, a second collecting pipe and a plurality of groups of heat exchange pipes, wherein each group of heat exchange pipes comprises a plurality of micro pipes which are arranged at intervals, and two ends of each micro pipe are respectively connected with the first collecting pipe and the second collecting pipe; and the multiple groups of heat exchange tubes are stacked and arranged along the direction from one end of the first collecting pipe or the second collecting pipe to the other end of the first collecting pipe or the second collecting pipe.

The heat exchanger provided by the utility model has the advantages that the multiple groups of heat exchange tubes are connected with the first collecting pipe and the second collecting pipe and are arranged in a stacked manner, so that the heat exchanger can normally exchange heat; simultaneously including a plurality of microtubes in every group heat exchange tube, the heat transfer effect of heat exchange tube can be strengthened to a plurality of microtubes for the heat exchanger can satisfy corresponding heat transfer demand, simultaneously when the condensate water that condenses on the heat exchange tube, because a plurality of microtubes interval arrange the setting, the interval gap between the microtubes can be followed to the condensate water and flows, thereby the heat exchanger of being convenient for discharges the condensate water, prevent that the condensate water from influencing the heat transfer, be favorable to strengthening the heat exchange efficiency of heat exchanger, and be favorable to reducing the heat transfer energy consumption.

In one embodiment, in order to facilitate installation of the heat exchange tubes, the ends of at least some of the microtubes in each group of the heat exchange tubes are bent and extended to form port portions, a plurality of the port portions are arranged adjacent to each other and attached to each other, and the port portions are connected to the first collecting pipe or the second collecting pipe.

So set up, a plurality of port portions are adjacent and the laminating sets up, and a plurality of port portions can together peg graft first pressure manifold or second pressure manifold to simplify the installation of heat exchange tube, be favorable to the equipment production of heat exchanger.

In one embodiment, in order to ensure that the micro-pipe can circulate the refrigerant, the micro-pipe is a micro single-hole pipe; or the like, or, alternatively,

the microtube is a micro-porous tube and the microtube comprises at least two communicating holes.

According to different working conditions, the miniature single-hole pipe or the miniature multi-hole pipe can be selected as the miniature pipe, and the refrigerant can circulate through the communication hole of the miniature pipe, so that the normal heat exchange of the heat exchanger is ensured.

In one embodiment, to further enhance the heat exchange effect, each group of heat exchange tubes is arranged in multiple rows, each row of heat exchange tubes comprises multiple micro tubes, and the multiple rows of heat exchange tubes are arranged at intervals; the heat exchange tube also comprises a plurality of bent tubes, and the micro tubes in two adjacent rows of heat exchange tubes are connected through the bent tubes.

So set up, every group heat exchange tube is the multirow setting, and two adjacent rows of heat exchange tubes are linked together through the return bend, and then the heat transfer effect of heat exchanger obtains strengthening, is favorable to the heat exchanger to satisfy higher heat transfer demand.

In one embodiment, the production cost and the heat exchange effect of the heat exchanger are integrated, each group of heat exchange tubes are double rows of heat exchange tubes, and the micro tubes in the double rows of heat exchange tubes are connected in a one-to-one correspondence mode through the bent tubes.

So set up, the heat exchanger adopts double heat exchange tube can satisfy the heat transfer demand under most operating modes, avoids the heat exchange tube row number that the heat exchanger set up too much and leads to the cost sharply to increase simultaneously, promotes the price/performance ratio.

In one embodiment, in order to improve the heat exchange uniformity of the heat exchanger, the bent pipes are arranged at intervals, and the spacing distance between every two adjacent bent pipes is equal.

So set up, the even interval of a plurality of return bends sets up for the heat transfer air current that circulates around the return bend can the even flow, is favorable to even heat transfer.

In one embodiment, the elbow is U-shaped.

In one embodiment, in order to mount the heat exchange tubes, the first collecting pipe is provided with a plurality of first mounting holes, the plurality of first mounting holes are arranged at intervals along the direction from one end to the other end of the first collecting pipe, and the plurality of first mounting holes are respectively connected with a plurality of groups of heat exchange tubes; and/or the presence of a catalyst in the reaction mixture,

the second collecting pipe is provided with a plurality of second mounting holes, the second mounting holes are arranged at intervals along the direction from one end to the other end of the second collecting pipe, and the second mounting holes are respectively connected with the plurality of groups of heat exchange pipes.

So set up, the one end of every group heat exchange tube can be connected in first pressure manifold through first mounting hole, and the other end passes through the second mounting hole and connects in the second pressure manifold to realize the installation of heat exchange tube, guarantee that the heat exchanger can normally carry out the heat transfer.

In one embodiment, in order to further enhance the heat exchange effect of the heat exchanger, fins are further arranged between two adjacent groups of heat exchange tubes.

So set up, the fin can increase the heat transfer surface area of heat exchanger, and then is favorable to improving the heat transfer effect of heat exchanger.

The utility model also provides a heat transfer system, heat transfer system includes foretell heat exchanger.

The utility model provides a heat transfer system is through setting up foretell heat exchanger for condensate water among the heat transfer system can discharge smoothly, prevents that condensate water from influencing heat transfer system's heat transfer effect, and then is favorable to the normal heat transfer of heat transfer system.

Drawings

Fig. 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a single row of heat exchange tubes in the heat exchanger shown in FIG. 1;

FIG. 3 is a schematic structural view of a double row of heat exchange tubes in the heat exchanger of FIG. 1;

fig. 4 is a schematic view of the dual bank heat exchange tube of fig. 3 at another angle.

Description of reference numerals:

100. a heat exchanger; 10. a heat exchange pipe; 11. a microtube; 111. a port section; 12. bending the pipe; 20. a first header; 30. a second header; 40. and a fin.

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.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

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. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a heat exchanger 100 according to an embodiment of the present invention. The heat exchanger is a device for transferring partial heat of hot fluid to cold fluid, plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, and is used for exchanging heat for specific environment so as to meet the temperature requirements of different environments.

The utility model provides a heat exchanger 100, the heat exchanger 100 includes heat exchange tube 10, first pressure manifold 20, second pressure manifold 30 and fin 40, the heat exchange tube 10 is connected with first pressure manifold 20 and second pressure manifold 30, fin 40 is connected with heat exchange tube 10; the heat exchange tube 10 is used for circulating a refrigerant, the first collecting tube 20 and the second collecting tube 30 are used for storing the refrigerant, and the fins 40 are used for enhancing the heat exchange effect of the heat exchanger.

The heat exchange tubes 10 are a plurality of groups of heat exchange tubes 10, the plurality of groups of heat exchange tubes 10 are all connected with the first collecting pipe 20 and the second collecting pipe 30, and the plurality of groups of heat exchange tubes 10 are arranged in a stacked manner from one end to the other end of the first collecting pipe 20 or the second collecting pipe 30; the heat exchange tubes 10 are arranged into a plurality of groups, so that the heat exchange capability of the heat exchanger 100 can be enhanced, and the application scene of the heat exchanger 100 can be expanded, wherein in the embodiment, the heat exchange tubes 10 are arranged into twenty-five groups; it is understood that in other embodiments, the number of the heat exchange tubes 10 can be set to other numbers according to different heat exchange requirements.

In the present embodiment, the stacked multiple groups of heat exchange tubes 10 are parallel to each other, so that the heat exchange air flowing through the heat exchanger 100 can flow uniformly and smoothly, which is beneficial to the heat exchanger 100 to improve the heat exchange efficiency; it can be understood that, in other embodiments, according to specific working condition requirements, the stacked multiple groups of heat exchange tubes 10 may also be partially parallel, or all of them may not be parallel, as long as the requirements under corresponding working conditions can be met.

Each group of heat exchange tubes 10 comprises a plurality of micro tubes 11, the micro tubes 11 are arranged at intervals, and the micro tubes are connected with a first collecting pipe 20 and a second collecting pipe 30; when the heat exchanger 100 exchanges heat, condensed water can condense on the heat exchange tube 10, and because the plurality of microtubes 11 are arranged at intervals, the condensed water can flow out from gaps among the microtubes 11, so that the condensed water can be conveniently discharged from the heat exchanger 100, the heat exchange effect of the heat exchanger 100 is further prevented from being influenced by the condensed water, the normal heat exchange of the heat exchanger 100 is favorably ensured, and the energy consumption is reduced.

In the present embodiment, the plurality of microtubes 11 in each group of heat exchange tubes 10 are uniformly spaced, which further facilitates uniform flow of the heat exchange air flowing around the heat exchange tubes 10 and uniform heat exchange of the heat exchanger 100; it is understood that in other embodiments, the plurality of microtubes 11 in each set of heat exchange tubes 10 may be partially uniformly spaced according to different operating conditions.

In the present embodiment, each group of heat exchange tubes 10 includes five microtubes 11, and the five microtubes 11 can meet the heat exchange requirement in the present embodiment; it is understood that in other embodiments, the number of the microtubes 11 in each group of heat exchange tubes 10 can be other values according to different working conditions, and is not particularly limited.

The micro-pipe 11 can be selected from a micro single-hole pipe or a micro multi-hole pipe according to different working conditions, wherein the micro multi-hole pipe at least comprises two communicating holes. In the embodiment, a micro single-hole pipe is selected as the micro pipe 11, and the micro single-hole pipe can meet the heat exchange requirement under the general working condition; it is understood that in other embodiments, to meet the relatively high heat exchange requirement, the micro-pipe 11 may also be selected as a micro-porous pipe, which can increase the cross-sectional area for the refrigerant to flow through, thereby enlarging the refrigerant, and being beneficial to improving the heat exchange effect of the heat exchanger 100.

The end of at least part of the microtubes 11 in each group of heat exchange tubes 10 is bent and extended to form a port part 111, the port part 111 is used for connecting the first collecting pipe 20 or the second collecting pipe 30, and the port parts 111 are adjacent and attached to each other, so that the microtubes 11 can be together inserted into the first collecting pipe 20 or the second collecting pipe 30, the microtubes 11 are prevented from being independently connected, the heat exchange tubes 10 are convenient to install, and the assembly production of the heat exchanger 100 is facilitated.

In the present embodiment, one of the five microtubes 11 is arranged in the middle, the other four microtubes 11 are bent and extended to form the port portions 111, and two microtubes 11 are arranged on two sides of the middle microtube 11, the ends of the five microtubes 11 are attached to each other, and then the five microtubes 11 can be commonly inserted into one connection hole in the first collecting pipe 20 or the second collecting pipe 30, so as to prevent the first collecting pipe 20 or the second collecting pipe 30 from being respectively corresponding to different microtubes 11, which is beneficial to the installation of the heat exchange tube 10; it is understood that, in other embodiments, when the number of the microtubes 11 of each group of heat exchange tubes 10 is even, in order to ensure that the microtubes 11 can be arranged at intervals and are convenient to install, all the microtubes 11 may be provided with the port portions 111, and all the port portions 111 are arranged in a fitting manner, thereby facilitating the assembly and production of the heat exchanger 100 under corresponding operating conditions.

Referring to fig. 2 to 4, fig. 2 is a schematic structural view of a single row of heat exchange tubes 10 in the heat exchanger 100 shown in fig. 1; FIG. 3 is a schematic diagram of the construction of the dual row heat exchange tubes 10 of the heat exchanger 100 of FIG. 1; fig. 4 is a schematic view of the dual bank heat exchange tube 10 of fig. 3 at another angle. Each group of heat exchange tubes 10 is arranged in a plurality of rows, each row of heat exchange tubes 10 comprises a plurality of micro tubes 11, and the plurality of rows of heat exchange tubes 10 are arranged at intervals; the heat exchanger 100 further comprises an elbow 12, two adjacent rows of heat exchange tubes 10 are connected through the elbow 12, and the heat exchange capacity of the heat exchanger 100 can be enhanced through the multiple rows of heat exchange tubes 10, so that the heat exchange effect of the heat exchanger 100 can be improved. In the embodiment, each group of heat exchange tubes 10 comprises two rows of heat exchange tubes 10, the micro tubes 11 in the two rows of heat exchange tubes 10 are connected in a one-to-one correspondence manner through the bent tubes 12, and the two rows of heat exchange tubes 10 can meet the heat exchange requirements under most working conditions; it is understood that in other embodiments, each group of heat exchange tubes 10 can be a single row of heat exchange tubes 10, or other number of multiple rows of heat exchange tubes 10, according to the heat exchange requirement.

The shape of the bent pipe 12 is substantially U-shaped, a plurality of bent pipes 12 between two adjacent rows of heat exchange pipes 10 are arranged at intervals, and the interval distance between two adjacent bent pipes 12 is equal, so that the heat exchange air flow circulating around the bent pipes 12 can uniformly flow, and further uniform heat exchange of the heat exchanger 100 is facilitated.

The first collecting pipe 20 is provided with a first mounting hole (not shown), and the first mounting hole is used for mounting the heat exchange pipe 10; one end of each group of heat exchange tubes 10 of the plurality of micro tubes 11 jointly extends into the first mounting hole, and one end of each group of heat exchange tubes 10 is fixedly connected with the side wall of the first mounting hole, so that each group of heat exchange tubes 10 is communicated with the first collecting pipe 20.

The quantity of first mounting hole is a plurality of, and multiunit heat exchange tube 10 is connected respectively to a plurality of first mounting holes, and a plurality of first mounting holes are arranged to another end direction interval along the one end of first pressure manifold 20, and the spacing distance of two adjacent first mounting holes equals to multiunit heat exchange tube 10 evenly stacks the setting, is favorable to the even air-out of heat exchanger 100, and then is favorable to the even heat transfer of heat exchanger 100.

The second collecting pipe 30 is provided with a second mounting hole (not shown), and the second mounting hole is also used for mounting the heat exchange pipe 10; the other ends of the plurality of microtubes 11 in each group of heat exchange tubes 10 jointly extend into the second mounting hole, and the other ends of the plurality of microtubes 11 are fixedly connected with the side wall of the second mounting hole, so that the communication between each group of heat exchange tubes 10 and the second collecting pipe 30 is realized.

The quantity of second mounting hole is the same and be a plurality ofly with the quantity of first mounting hole, and multiunit heat exchange tube 10 is connected respectively to the second mounting hole, and the second mounting hole corresponds with first mounting hole one-to-one level to guarantee that heat exchange tube 10 can install smoothly.

In the present embodiment, the microtube 11 is fixed to the first header 20 and the second header 30 by welding, and the welding can make the microtube 11 firmly connected to the first header 20 and the second header 30, and at the same time, the microtube 11 has better sealing property with the first header 20 and the second header 30, thereby preventing the refrigerant from leaking and facilitating the normal heat exchange of the heat exchanger 100; it is understood that in other embodiments, the microtubes 11 may be fixed to the first header 20 and the second header 30 by other connecting means such as adhesive bonding, as long as the above-mentioned object is achieved.

All be equipped with fin 40 between two sets of adjacent heat exchange tubes 10, fin 40's heat conductivity is stronger, can increase heat exchange surface area of heat exchanger 100 to improve heat exchange efficiency of heat exchanger 100. In the embodiment, the fins 40 are V-shaped fins, and the V-shaped fins have small resistance to airflow, thereby facilitating enhancement of air flow and further facilitating heat exchange; it is understood that in other embodiments, the fins 40 may be one of straight fins or corrugated fins, depending on the operating conditions.

The heat exchanger 100 of the present invention has the following general heat exchange process, wherein the liquid refrigerant in the heat exchanger 100 is disposed in the first collecting pipe 20 and flows into the heat exchange tube 10 through the micro tube 11; in the process, the liquid refrigerant exchanges heat in the heat exchange tube 10, the liquid refrigerant is converted into a gaseous refrigerant, and the gaseous refrigerant is collected in the second collecting pipe 30, so that a corresponding heat exchange cycle is completed.

In the heat exchanger 100 provided by the utility model, the plurality of groups of heat exchange tubes 10 are connected with the first collecting pipe 20 and the second collecting pipe 30, and the plurality of groups of heat exchange tubes 10 are arranged in a stacked manner, so that the heat exchanger 100 can normally exchange heat; meanwhile, each group of heat exchange tubes 10 comprises a plurality of micro tubes 11, the heat exchange effect of the heat exchange tubes 10 can be enhanced through the micro tubes 11, so that the heat exchanger 100 can meet the corresponding heat exchange requirement, and meanwhile, when condensed water is condensed on the heat exchange tubes 10, the condensed water can flow out along the gap between the micro tubes 11 due to the arrangement of the micro tubes 11 at intervals, so that the condensed water can be conveniently discharged from the heat exchanger 100, the condensed water is prevented from influencing heat exchange, the heat exchange efficiency of the heat exchanger 100 is favorably enhanced, and the heat exchange energy consumption is favorably reduced.

The utility model also provides a heat transfer system, this heat transfer system include foretell heat exchanger 100.

The utility model provides a heat transfer system is through setting up foretell heat exchanger 100 for condensate water among the heat transfer system can discharge smoothly, prevents that the condensate water from influencing heat transfer system's heat transfer effect, and then is favorable to the normal heat transfer of heat transfer system.

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.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims

1. A heat exchanger comprises a first collecting pipe (20), a second collecting pipe (30) and a plurality of groups of heat exchange pipes (10), and is characterized in that each group of heat exchange pipes (10) comprises a plurality of micro pipes (11), the micro pipes (11) are arranged at intervals, and two ends of each micro pipe (11) are respectively connected with the first collecting pipe (20) and the second collecting pipe (30); and multiple groups of heat exchange tubes (10) are stacked and arranged along the direction from one end of the first collecting pipe (20) or the second collecting pipe (30) to the other end.

2. The heat exchanger according to claim 1, wherein at least some of the microtubes (11) in each group of heat exchange tubes (10) have ends bent and extended to form port portions (111), a plurality of the port portions (111) are disposed adjacent to and attached to each other, and a plurality of the port portions (111) are connected to the first header (20) or the second header (30).

3. The heat exchanger according to claim 1, wherein the microtubes (11) are mini single-hole tubes; or the like, or, alternatively,

the microtube (11) is a micro porous tube and comprises at least two communicating holes.

4. The heat exchanger according to claim 1, wherein each group of the heat exchange tubes (10) is arranged in a plurality of rows, each row of the heat exchange tubes (10) comprises a plurality of the microtubes (11), and the plurality of rows of the heat exchange tubes (10) are arranged at intervals; the heat exchange tube (10) further comprises a plurality of bent tubes (13), and the micro tubes (11) in the two adjacent rows of heat exchange tubes (10) are connected through the bent tubes (13).

5. The heat exchanger according to claim 4, wherein each set of heat exchange tubes (10) is a double row of heat exchange tubes (10), and the microtubes (11) in the double row of heat exchange tubes (10) are connected in one-to-one correspondence by the bent tubes (13).

6. The heat exchanger according to claim 4, wherein a plurality of the bent tubes (13) are arranged at intervals, and the intervals between the adjacent bent tubes (13) are equal.

7. Heat exchanger according to claim 6, wherein the elbow (13) is U-shaped.

8. The heat exchanger as claimed in claim 2, wherein the first collecting pipe (20) is provided with a plurality of first mounting holes, the plurality of first mounting holes are arranged at intervals along a direction from one end to the other end of the first collecting pipe (20), and the plurality of first mounting holes are respectively connected with the plurality of groups of heat exchange tubes (10); and/or the presence of a catalyst in the reaction mixture,

the second collecting pipe (30) is provided with a plurality of second mounting holes, the second mounting holes are arranged at intervals along the direction from one end to the other end of the second collecting pipe (30), and the second mounting holes are respectively connected with the plurality of groups of heat exchange pipes (10).

9. The heat exchanger as claimed in claim 2, wherein a fin (40) is further provided between two adjacent sets of the heat exchange tubes (10).

10. A heat exchange system comprising a heat exchanger, characterized in that the heat exchanger is a heat exchanger (100) according to any one of claims 1 to 9.