CN213147491U

CN213147491U - Sleeve type heat exchanger with high heat exchange efficiency

Info

Publication number: CN213147491U
Application number: CN202021554568.5U
Authority: CN
Inventors: 束健
Original assignee: Suzhou Zhishujia Construction Technology Co ltd
Current assignee: Suzhou Zhishujia Construction Technology Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-05-07
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a high heat exchange efficiency's double pipe heat exchanger, it includes outer tube (1) and inner tube (2), outer tube (1) is including first body (10), inner tube (2) are located including inserting second body (20) in first body (10), be provided with a plurality of deflectors (4) on second body (20), deflectors (4) are followed the axis of second body (20) extend and with first body (10) internal surface (100) butt, a plurality of through-flow holes (40) have been seted up on deflectors (4). The utility model discloses a high heat exchange efficiency's double pipe heat exchanger through set up the water conservancy diversion piece between inner tube and outer tube, has increased the heat transfer area with water and the turbulent degree when rivers flow, has improved heat transfer effect.

Description

Sleeve type heat exchanger with high heat exchange efficiency

Technical Field

The utility model relates to a double pipe heat exchanger, in particular to high heat exchange efficiency's double pipe heat exchanger.

Background

The double pipe heat exchanger is generally made of two kinds of straight pipes with different diameters to form concentric sleeves, the inner sleeve is an inner pipe, the outer sleeve is an outer pipe, the inner pipe of each sleeve is sequentially connected with the inner pipe of the adjacent sleeve by a U-shaped bent pipe, and the outer pipe is connected with the outer pipe of the adjacent sleeve. The double-pipe heat exchanger mainly has the functions of heat exchange, the inner pipe of the double-pipe heat exchanger is used for introducing a refrigerant or a heating medium, the space between the inner pipe and the outer pipe is used for introducing water, heat exchange is carried out between the surface of the inner pipe and the water, the water is cooled or heated, heat is transferred to the outer pipe, and cold air or hot air is blown out from the air conditioner.

Due to the volume limitation of the double-pipe heat exchanger, the heat exchange space is limited, and therefore, how to enhance the heat exchange efficiency is very important.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned defect among the prior art, provide a high heat exchange efficiency's double pipe heat exchanger, it has higher heat exchange efficiency.

In order to realize the utility model discloses the purpose, the utility model provides a high heat exchange efficiency's double pipe heat exchanger, it includes outer tube and inner tube, the outer tube includes first body, the inner tube is located including inserting second body in the first body, be provided with a plurality of water conservancy diversion pieces on the second body, the water conservancy diversion piece is followed the axis of second body extend and with first body internal surface butt, a plurality of through-flow holes have been seted up on the water conservancy diversion piece.

Furthermore, the utility model discloses still provide following subsidiary technical scheme:

a plurality of guide grooves are formed in the inner surface of the first pipe body, and the flow deflectors are connected in the guide grooves in a matching mode.

The second pipe body is also provided with a flow blocking sheet, the flow blocking sheet is perpendicular to the axis of the second pipe body, and the outer surface of the flow blocking sheet is in contact with the inner surface of the first pipe body.

Flow channels are formed between every two adjacent flow deflectors, flow guide hole groups and entity parts are arranged on the flow deflectors at intervals, and the flow guide hole groups and the entity parts correspond to different flow channels respectively.

The outer pipe further comprises a first flange and a second flange which are connected to two ends of the first pipe body respectively, the inner pipe further comprises a third flange connected to the second pipe body and a piston ring located at the end of the second pipe body, the third flange is connected with the first flange, and the piston ring is connected in the first pipe body in a matching mode.

A first sealing ring is arranged between the piston ring and the first pipe body.

The double-pipe heat exchanger with high heat exchange efficiency further comprises a connecting pipe, wherein the connecting pipe comprises a pipe body in butt joint with the second pipe body and a fourth flange connected with the second flange.

And a second sealing ring is arranged between the piston ring and the fourth flange.

The piston ring is further provided with a bolt penetrating through the fourth flange and a nut connected to the bolt, and the nut locks the fourth flange on the piston ring.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a high heat exchange efficiency's double pipe heat exchanger through set up the water conservancy diversion piece between inner tube and outer tube, has seted up a plurality of through-flow holes on the water conservancy diversion piece, has increased the heat transfer area with water and the turbulent degree when rivers flow, has improved heat transfer effect. In addition, the inner pipe is also provided with flow blocking sheets, and the flow blocking sheets are provided with flow guide hole groups or solid parts corresponding to flow channels formed between the adjacent flow guiding sheets, so that the flow path of water is prolonged, the turbulence degree is greatly increased, and the heat exchange is more sufficient and efficient.

Drawings

Fig. 1 is a schematic structural view of a double pipe heat exchanger having high heat exchange efficiency according to the present invention.

Fig. 2 is a schematic structural view of the middle and outer tube of the present invention.

Fig. 3 is a schematic structural diagram of the inner tube of the present invention.

Fig. 4 is a sectional view of the double pipe heat exchanger of high heat exchange efficiency of the present invention.

Fig. 5 is an enlarged view of a portion I in fig. 4.

Fig. 6 is a sectional view of a-a portion in fig. 4.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings.

As shown in fig. 1, a double pipe heat exchanger with high heat exchange efficiency according to a preferred embodiment of the present invention includes an outer pipe 1, an inner pipe 2 inserted into the outer pipe 1, and a connection pipe 3 connecting the outer pipe 1 and the inner pipe 2.

As shown in fig. 2, the outer tube 1 includes a first tube 10, a first flange 11 and a second flange 12 respectively provided at both ends of the first tube 10, and an upper connection pipe 13 and a lower connection pipe 14 respectively connected to upper and lower sides of the first tube 10, the upper connection pipe 13 and the lower connection pipe 14 being used for inflow or outflow of water.

As shown in fig. 3, the inner tube 2 includes a second tube body 20, a third flange 21 connected to the second tube body 20, and a piston ring 22 connected to the second tube body 20.

As shown in fig. 4, the second pipe body 20 is inserted into the first pipe body 10, and the two are connected by the first flange 11 and the third flange 21, specifically, the two pipe bodies are connected by bolts passing through the first flange 11 and the third flange 21 and nuts, that is, the two pipe bodies are connected to each other.

Referring further to fig. 5, the piston ring 22 is provided in the first pipe 10, the first seal ring 220 abutting against the inner surface 100 of the first pipe 10 is provided on the outer peripheral surface of the piston ring 22, and the first seal ring 220 is provided between the piston ring 22 and the inner surface 100 of the first pipe 10, whereby water can be confined between the second pipe 20 and the first pipe 10. Preferably, the end face of the piston ring 22 is flush with the outer end face of the second flange 12, and a positioning groove 222 is provided on the piston ring 22.

The connecting pipe 3 comprises a pipe body 30 and a fourth flange 31 arranged at one end of the pipe body 30, the fourth flange 31 is used for connecting with the second flange 12, and a positioning boss 310 matched and connected with the positioning groove 222 is further arranged on the fourth flange 31, so that support can be provided for the end of the first pipe body 10, and the positioning effect can be improved. In order to improve the sealing performance, a second sealing ring 32 is further provided between the second flange 12 and the fourth flange 31. The tube 30 is adapted to be abutted with the second tube 20.

The piston ring 22 is provided with the stud 23, the stud 23 penetrates through the fourth flange 31 and is connected with the nut 230, and the piston ring 22 and the fourth flange 31 can be tightly attached through the locking nut 230, so that the sealing performance between the piston ring 22 and the fourth flange 31 is improved.

As shown in fig. 3, a plurality of radially outwardly projecting guide vanes 4 are provided on the second pipe body 20, the guide vanes 4 extending along the axis of the second pipe body 20 from the third flange 21 to the piston ring 22. The guide vanes 4 are provided with a plurality of through-flow holes 40 to allow water to flow between the guide vanes 4. The outer end of the baffle 4 extends to contact with the inner surface 100 of the first pipe body 10, the baffle 4 is made of a material with high heat conduction efficiency, such as a copper sheet or an aluminum alloy, and can rapidly conduct the cold or heat of the second pipe body 20 to the first pipe body 10, and meanwhile, the baffle 4 is immersed in water, so that the heat exchange area is increased, and the heat exchange efficiency can be further improved.

In this embodiment, the number of the guide vanes 4 is six, and the guide vanes are uniformly distributed around the axis of the second pipe body 20.

The second pipe 20 is further provided with a plurality of radially outwardly protruding flow blocking plates 5, the flow blocking plates 5 are perpendicular to the axis of the second pipe 20, the outer circumferential surface of each flow blocking plate 5 is connected with the inner surface 100 of the first pipe 10 in a matching manner, and similarly, the flow blocking plates 5 are made of materials with high heat conduction efficiency so as to conduct heat rapidly and improve heat exchange efficiency.

Referring to fig. 3 and 6, the spoiler 5 is provided with a plurality of sets of flow guide holes 50, and solid portions 51 without holes are disposed between adjacent sets of flow guide holes 50. Flow channels 4a are formed between two adjacent guide vanes 4, and the guide hole groups 50 and the solid parts 51 on the flow baffles 5 are arranged at intervals and respectively correspond to different flow channels 4 a. The flow guide hole set 50 allows water to pass through smoothly, and the solid part 51 blocks the water in the flow channel, so that the water can only flow from the through hole 40 to the adjacent flow channel and flow out from the flow guide hole set 50 on the next spoiler 5.

Through setting up spoiler 5, can make rivers can the switching-over flow in the runner 4a of difference, prolonged the flow path of rivers, improved the turbulent degree of water, make the heat transfer more abundant, improved heat exchange efficiency and heat transfer effect greatly.

As shown in fig. 2 and 6, for the convenience of installation, a plurality of guide grooves 101 adapted to the guide vane 4 are formed on the inner surface 100 of the first pipe 10, and the guide vane 4 is inserted into the guide grooves 101, so that on one hand, the positioning effect can be improved, on the other hand, the contact surface between the guide vane 4 and the first pipe 10 can be increased, and the heat conduction efficiency can be improved.

It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A double pipe heat exchanger of high heat exchange efficiency, which comprises an outer pipe (1) and an inner pipe (2), wherein the outer pipe (1) comprises a first pipe body (10), the inner pipe (2) comprises a second pipe body (20) inserted into the first pipe body (10), and is characterized in that: be provided with a plurality of water conservancy diversion pieces (4) on second body (20), water conservancy diversion piece (4) are followed the axis of second body (20) extend and with first body (10) internal surface (100) butt, a plurality of through-flow holes (40) have been seted up on water conservancy diversion piece (4).

2. The double pipe heat exchanger of high heat exchange efficiency according to claim 1, wherein: a plurality of guide grooves (101) are formed in the inner surface (100) of the first pipe body (10), and the flow deflectors (4) are connected in the guide grooves (101) in a matching mode.

3. The double pipe heat exchanger of high heat exchange efficiency according to claim 1, wherein: the second pipe body (20) is further provided with a flow blocking sheet (5), the flow blocking sheet (5) is perpendicular to the axis of the second pipe body (20), and the outer surface of the flow blocking sheet is in contact with the inner surface of the first pipe body (10).

4. A double pipe heat exchanger with high heat exchange efficiency according to claim 3, wherein: two adjacent form runner (4a) between water conservancy diversion piece (4), interval is provided with water conservancy diversion hole group (50) and entity portion (51) on spoiler (5), water conservancy diversion hole group (50) with entity portion (51) correspond with different runner (4a) respectively.

5. The double pipe heat exchanger of high heat exchange efficiency according to any one of claims 1 to 4, wherein: the outer pipe (1) further comprises a first flange (11) and a second flange (12) which are connected to two ends of the first pipe body (10) respectively, the inner pipe (2) further comprises a third flange (21) connected to the second pipe body (20) and a piston ring (22) located at the end of the second pipe body (20), the third flange (21) is connected with the first flange (11), and the piston ring (22) is connected in the first pipe body (10) in a matching mode.

6. The high heat exchange efficiency double pipe heat exchanger according to claim 5, wherein: a first sealing ring (220) is arranged between the piston ring (22) and the first pipe body (10).

7. The high heat exchange efficiency double pipe heat exchanger according to claim 6, wherein: the connecting pipe (3) comprises a pipe body (30) butted with the second pipe body (20) and a fourth flange (31) connected with the second flange (12).

8. The high heat exchange efficiency double pipe heat exchanger according to claim 7, wherein: a second sealing ring (32) is arranged between the piston ring (22) and the fourth flange (31).

9. The high heat exchange efficiency double pipe heat exchanger according to claim 7, wherein: the piston ring (22) is further provided with a bolt (23) penetrating through the fourth flange (31) and a nut (230) connected to the bolt (23), wherein the nut (230) locks the fourth flange (31) on the piston ring (22).