CN211953776U

CN211953776U - Parallel flow heat exchanger

Info

Publication number: CN211953776U
Application number: CN202020404735.1U
Authority: CN
Inventors: 常龙
Original assignee: Wuxi Lianyi Locomotive Accessories Manufacturing Co ltd
Current assignee: Wuxi Lianyi Locomotive Accessories Manufacturing Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-11-17
Anticipated expiration: 2030-03-25

Abstract

The utility model relates to a parallel flow type heat exchanger, it includes first pressure manifold and second pressure manifold, is connected between first pressure manifold and the second pressure manifold and is equipped with sideboard and lower panel, is connected the flat heat transfer pipe that is equipped with a plurality of evenly distributed between first pressure manifold and the second pressure manifold, and the flat pipe that is located between sideboard and the lower panel of heat transfer, adjacent two be equipped with wavy outer fin between the flat pipe of heat transfer, the vertical division board that is equipped with in the first pressure manifold, the width direction of division board is parallel with the length direction of the flat pipe of heat transfer, and the division board is equallyd divide the inside of first pressure manifold into first cavity and second cavity, and the top of first pressure manifold is equipped with feed liquor pipe and drain pipe, feed liquor pipe and first cavity intercommunication, drain pipe and second cavity intercommunication, and the heat transfer is equallyd divide into two and is listed as the setting, is listed as. The utility model discloses have and to carry out high-efficient radiating effect to high temperature liquid.

Description

Parallel flow heat exchanger

Technical Field

The utility model belongs to the technical field of the technique of heat exchanger equipment and specifically relates to a parallel flow formula heat exchanger is related to.

Background

The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called as a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, and has wide application. A parallel flow heat exchanger is one type of heat exchanger, and is generally used in combination with an air cooler to dissipate heat of high-temperature liquid.

Chinese patent No. CN201764878U discloses a parallel flow heat exchanger with a novel uniform distribution structure, which comprises a plurality of micro-channel heat exchange flat tubes, wherein side plates are arranged on the outer sides of the micro-channel heat exchange flat tubes at the upper and lower edges, one end of each micro-channel heat exchange flat tube is connected to a liquid distribution tube, the other end of each micro-channel heat exchange flat tube is connected to a liquid collection tube, a uniform distribution tube is longitudinally arranged in the liquid distribution tube, and a plurality of partition plates are transversely arranged in the liquid distribution tube to divide an inner cavity of the liquid distribution tube into a plurality of slow; in the slow flow cavity, a plurality of overflow holes are formed in the pipe wall of the uniform distribution pipe. According to medium flow direction rational utilization baffle will divide the inner chamber of liquid pipe to separate into the unhurried current cavity of a plurality of different length, open the overflow hole of different numbers on the pipe wall of equal piping in every unhurried current cavity, the medium for the flat pipe distribution of every microchannel heat transfer can be comparatively even like this, full play's the heat transfer effect of the flat pipe of every microchannel heat transfer.

The above prior art solutions have the following drawbacks: during the use, high temperature liquid only dispels the heat through the flat pipe of microchannel heat transfer once, and when high temperature liquid's temperature was higher, probably there was the incomplete condition of heat dissipation, consequently the radiating efficiency of the parallel flow formula heat exchanger of above-mentioned novel homogamy structure is not high enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a parallel flow type heat exchanger, have and to carry out high-efficient radiating effect to high temperature liquid not enough to prior art exists.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a parallel flow type heat exchanger comprises a first collecting pipe and a second collecting pipe, wherein an upper edge plate and a lower edge plate are connected between the first collecting pipe and the second collecting pipe, a plurality of heat exchange flat pipes which are uniformly distributed are connected between the first collecting pipe and the second collecting pipe, the heat exchange flat tubes are positioned between the upper side plate and the lower side plate, wavy outer fins are arranged between two adjacent heat exchange flat tubes, the first collecting pipe is internally and vertically provided with a partition plate, the width direction of the partition plate is parallel to the length direction of the heat exchange flat pipe, the partition plate divides the interior of the first collecting pipe into a first cavity and a second cavity, the top end of the first collecting pipe is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is communicated with the first cavity, the liquid outlet pipe is communicated with the second cavity, the heat exchange flat pipes are equally divided into two rows, and the two rows of the heat exchange flat pipes are respectively positioned on two sides of the partition plate.

Through adopting above-mentioned technical scheme, during the use, pour into high-temperature liquid into first cavity in from the feed liquor pipe, then high-temperature liquid gets into and dispels the heat the cooling in the heat transfer flat pipe with first cavity intercommunication, and high-temperature liquid after the heat dissipation gets into in the second mass flow pipe, then gets into and dispels the heat the cooling once more in the heat transfer flat pipe with second cavity intercommunication to discharge from the drain pipe at last. Because the high-temperature liquid passes through the heat exchange flat tubes twice, the parallel flow type heat exchanger has the effect of efficiently radiating the high-temperature liquid.

The present invention may be further configured in a preferred embodiment as: the heat exchange flat tube is internally provided with wavy inner fins which extend along the width direction of the heat exchange flat tube.

By adopting the technical scheme, the inner fins have the function of improving the heat dissipation efficiency of the high-temperature liquid.

The present invention may be further configured in a preferred embodiment as: and a gap is reserved between the two heat exchange flat tubes.

By adopting the technical scheme, the heat of the high-temperature liquid in each row of heat exchange flat tubes is easier to dissipate, and the heat dissipation efficiency is improved.

The present invention may be further configured in a preferred embodiment as: and the two vertical surfaces of the partition plate are provided with heat insulation layers.

Through adopting above-mentioned technical scheme, have the effect that the liquid after reducing the heat dissipation in the high temperature liquid in the first cavity and the second cavity carries out heat exchange.

The present invention may be further configured in a preferred embodiment as: the interior of the partition plate is of a hollow structure.

Through adopting above-mentioned technical scheme, can further reduce the liquid in first cavity and the second cavity and carry out heat exchange.

The present invention may be further configured in a preferred embodiment as: a plurality of uniformly distributed heat dissipation rods are inserted on the second collecting pipe, one end of each heat dissipation rod is inserted into the corresponding second collecting pipe, and the other end of each heat dissipation rod extends to the outside of the corresponding second collecting pipe.

Through adopting above-mentioned technical scheme, the heat dissipation stick can dispel the heat to the liquid in the second collecting pipe.

The present invention may be further configured in a preferred embodiment as: and a plurality of radiating fins which are uniformly distributed are arranged on the part of the radiating rod, which is positioned outside the second collecting pipe.

Through adopting above-mentioned technical scheme, radiating fin can improve the radiating efficiency of radiating rod.

The present invention may be further configured in a preferred embodiment as: the heat dissipation rods are arranged in two rows, and the two rows of heat dissipation rods are distributed in a staggered mode.

Through adopting above-mentioned technical scheme, can increase the interval between the adjacent two rows of cooling rods, can make every cooling rod heat dissipation more abundant.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the utility model has the advantages that by arranging the division plate and the two rows of heat exchange flat tubes, after the high-temperature liquid enters the first collecting pipe, the heat is radiated for two times through the two rows of heat exchange flat tubes respectively, and finally the high-temperature liquid is discharged from the first collecting pipe, so that the high-efficiency heat radiation effect on the high-temperature liquid is realized;

2. the utility model has the advantages that the heat exchange between the liquid in the first cavity and the liquid in the second cavity is reduced by arranging the heat insulation layer;

3. the utility model discloses a set up heat dissipation stick and radiating fin, have and to carry out radiating effect to the high temperature liquid in the second collecting pipe.

Drawings

Fig. 1 is a schematic view of the overall structure for embodying a parallel flow heat exchanger in the embodiment.

Fig. 2 is a schematic diagram for embodying the temporal structure of the first header in the embodiment.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic diagram of a structure for embodying two rows of heat exchange flat tubes in the embodiment.

FIG. 5 is a schematic diagram of the distribution positions of the heat dissipation rods according to the embodiment.

In the figure, 1, a first collecting pipe; 2. a second header; 3. an upper edge plate; 4. a lower edge plate; 5. heat exchange flat tubes; 6. an outer fin; 7. a partition plate; 8. a first cavity; 9. a second cavity; 10. a liquid inlet pipe; 11. a liquid outlet pipe; 12. an inner fin; 13. a thermal insulation layer; 14. a heat dissipation rod; 15. and (4) radiating fins.

Detailed Description

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

Example (b): referring to fig. 1 and fig. 2, for the utility model discloses a parallel flow type heat exchanger, including first pressure manifold 1 and second pressure manifold 2, first pressure manifold 1 and second pressure manifold 2 are square pipe, and the welding has upper edge plate 3 and lower edge plate 4 between first pressure manifold 1 and the second pressure manifold 2, and upper edge plate 3 and lower edge plate 4 are located the both ends of first pressure manifold 1 and second pressure manifold 2 respectively and upper edge plate 3 is located lower edge plate 4 top. Still weld between first pressure manifold 1 and the second pressure manifold 2 has a plurality of evenly distributed's flat pipe of heat transfer 5, and flat pipe of heat transfer 5 is located between upper plate 3 and the lower plate 4, and flat pipe of heat transfer 5 communicates first pressure manifold 1 and second pressure manifold 2. Wavy outer fins 6 are welded between every two adjacent heat exchange flat tubes 5, and the outer fins 6 extend along the length direction of the heat exchange flat tubes 5. Division plate 7 has been welded in first pressure manifold 1, and division plate 7 is vertical to be set up, and the width direction of division plate 7 is parallel with the length direction of heat exchange tube, and division plate 7 equally divide first pressure manifold 1's inside into first cavity 8 and second cavity 9. The top welding of first pressure manifold 1 has feed liquor pipe 10 and drain pipe 11, and feed liquor pipe 10 is the straight tube, and drain pipe 11 is the return bend, and feed liquor pipe 10 and first cavity 8 intercommunication, drain pipe 11 and second cavity 9 intercommunication. The heat exchange transformation is equally divided into two rows, and the two rows of heat exchange flat tubes 5 are respectively positioned at two sides of the partition plate 7.

During the use, treat radiating high temperature liquid through injection liquid pipe 10 to first pressure manifold 1 interior injection, high temperature liquid gets into first cavity 8, then get into the flat heat transfer pipe 5 with first cavity 8 intercommunication, because flat heat transfer pipe 5 outer weld has outer fin 6, consequently, high temperature liquid can obtain effectual heat dissipation cooling, then high temperature liquid gets into in the second pressure manifold 2, and enter into second cavity 9 through the heat transfer transform with second cavity 9 intercommunication, high temperature liquid is when the flat heat transfer pipe 5 with second cavity 9 intercommunication, dispel the heat the cooling once more, liquid after the cooling enters into in the second cavity 9, and discharge from drain pipe 11. In the process, the high-temperature liquid passes through the heat exchange flat tubes 5 twice, heat dissipation and cooling are performed twice, the heat dissipation effect of the high-temperature liquid is good, and therefore the parallel flow type heat exchanger has the advantage of being capable of efficiently dissipating heat of the high-temperature liquid.

Referring to fig. 2 and 3, the heat exchange flat tube 5 is pinch-welded with wavy inner fins 12, and the inner fins 12 extend in the width direction of the heat exchange flat tube 5. Because the inner fins 12 are arranged, the inner fins 12 divide the interior of the heat exchange flat tubes 5 into a plurality of channels with smaller calibers, and high-temperature liquid flows through the heat exchange flat tubes 5 through the channels, so that the heat dissipation of the high-temperature liquid is more convenient, and the heat dissipation efficiency is improved.

Referring to fig. 4, a gap is left between the two rows of flat heat exchange tubes 5. Due to the arrangement of the gaps, heat is easy to dissipate after being transferred out of the heat exchange flat tubes 5, the occurrence of the situation that the heat is difficult to dissipate between two rows of heat exchange flat tubes 5 in a gathering mode is reduced, and therefore the heat dissipation efficiency can be improved.

Referring to fig. 2 and 3, when the high-temperature liquid enters the second cavity 9 after passing through two rows of flat heat exchange tubes 5, the temperature of the high-temperature liquid is greatly reduced, and the liquid in the first cavity 8 has high temperature and can be subjected to heat transfer through the partition plate 7, so that the two vertical surfaces of the partition plate 7 are both bonded with the heat insulation layers 13. The insulating layer 13 reduces the rate at which heat is transferred through the partition 7, and has the effect of reducing the heat exchange between the liquid in the first cavity 8 and the liquid in the second cavity 9.

Referring to fig. 2 and 3, the partition plate 7 is provided with a hollow structure inside. The heat conduction effect of the gas is poorer than that of the solid, so that the hollow structure is more unfavorable for the heat transfer of the partition plate 7, and the heat exchange between the liquid in the first cavity 8 and the liquid in the second cavity 9 is further reduced.

Referring to fig. 5, the second pressure manifold 2 is kept away from and is inserted the heat dissipation stick 14 that is equipped with a plurality of evenly distributed on the vertical lateral wall of heat transfer flat pipe 5, and heat dissipation stick 14 level sets up, and in the one end of heat dissipation stick 14 inserted the second pressure manifold 2, the other end of heat dissipation stick 14 extended to the second pressure manifold 2 outside, and the position of heat dissipation stick 14 and the lateral wall contact of second pressure manifold 2 is consolidated through the welding. Due to the arrangement of the heat dissipation rod 14, when high-temperature liquid enters the second collecting pipe 2, the heat dissipation rod 14 can be used for heat dissipation and cooling, and therefore the heat dissipation efficiency is further improved.

Referring to fig. 5, the part of the heat dissipation rod 14, which is located outside the second collecting pipe 2, is sleeved with a plurality of uniformly distributed heat dissipation fins 15, the positions of the heat dissipation fins 15, which are in contact with the heat dissipation rod 14, are fixed by welding, and the heat dissipation efficiency of the heat dissipation rod 14 can be improved by the arrangement of the heat dissipation fins 15, so that the heat dissipation effect on the liquid in the second collecting pipe 2 is improved.

Referring to fig. 5, two rows of heat dissipation rods 14 are distributed in a staggered manner, and through the above arrangement, the distance between two adjacent rows of heat dissipation rods 14 is increased, so that the dissipation of heat transferred from the inside of the second collecting pipe 2 to the heat dissipation fins 15 can be facilitated, and the effect of improving the heat dissipation efficiency of the heat dissipation rods 14 and the heat dissipation fins 15 is achieved.

The implementation principle of the embodiment is as follows: during the use, the high temperature liquid that will treat the cooling pours into first cavity 8 into from feed liquor pipe 10 in, then high temperature liquid enters into and carries out first heat dissipation in the heat transfer flat pipe 5 with 8 intercommunications in first cavity, liquid after first heat dissipation enters into second pressure manifold 2, high temperature liquid accessible heat dissipation stick 14 carries out supplementary heat dissipation in second pressure manifold 2, liquid after supplementary heat dissipation gets into and carries out the secondary heat dissipation in the heat transfer flat pipe 5 with 9 intercommunications in second cavity, after the secondary heat dissipation, high temperature liquid temperature reduces completely, liquid after the cooling enters into in the second cavity 9, and can follow drain pipe 11 discharges. To sum up, because high temperature liquid can be twice through heat transfer flat pipe 5 when this parallel flow formula heat exchanger, high temperature liquid can carry out twice heat dissipation promptly, consequently the utility model discloses have and can carry out high-efficient radiating effect to high temperature liquid.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a parallel flow type heat exchanger, includes first pressure manifold (1) and second pressure manifold (2), it is equipped with sideboard (3) and lower plate (4) to be connected between first pressure manifold (1) and second pressure manifold (2), be connected between first pressure manifold (1) and second pressure manifold (2) and be equipped with a plurality of evenly distributed's flat heat transfer pipe (5), flat heat transfer pipe (5) are located between sideboard (3) and lower plate (4), adjacent two be equipped with wavy outer fin (6), its characterized in that between flat heat transfer pipe (5): the utility model discloses a heat exchanger, including first pressure manifold (1), division board (7) are vertically equipped with in first pressure manifold (1), the width direction of division board (7) is parallel with the length direction of the flat pipe of heat transfer (5), division board (7) are equallyd divide the inside of first pressure manifold (1) into first cavity (8) and second cavity (9), the top of first pressure manifold (1) is equipped with feed liquor pipe (10) and drain pipe (11), feed liquor pipe (10) and first cavity (8) intercommunication, drain pipe (11) and second cavity (9) intercommunication, the flat pipe of heat transfer (5) are equallyd divide into two and are listed as the setting, two the flat pipe of heat transfer (5) are located the both sides of division board (7) respectively.

2. A parallel flow heat exchanger according to claim 1 wherein: the heat exchange flat tube (5) is internally provided with wavy inner fins (12), and the inner fins (12) extend along the width direction of the heat exchange flat tube (5).

3. A parallel flow heat exchanger according to claim 1 wherein: and a gap is reserved between the two heat exchange flat tubes (5).

4. A parallel flow heat exchanger according to claim 1 wherein: and the two vertical surfaces of the separation plate (7) are provided with heat insulation layers (13).

5. A parallel flow heat exchanger according to claim 4 wherein: the partition plate (7) is internally provided with a hollow structure.

6. A parallel flow heat exchanger according to claim 1 wherein: a plurality of uniformly distributed heat dissipation rods (14) are inserted into the second collecting pipe (2), one end of each heat dissipation rod (14) is inserted into the second collecting pipe (2), and the other end of each heat dissipation rod extends to the outside of the second collecting pipe (2).

7. A parallel flow heat exchanger according to claim 6 wherein: and a plurality of radiating fins (15) which are uniformly distributed are arranged on the part of the radiating rod (14) outside the second collecting pipe (2).

8. A parallel flow heat exchanger according to claim 7 wherein: the heat dissipation rods (14) are arranged in two rows, and the two rows of heat dissipation rods (14) are distributed in a staggered mode.