CN211552540U

CN211552540U - Anti-scouring structure of heat exchanger

Info

Publication number: CN211552540U
Application number: CN201922032077.8U
Authority: CN
Inventors: 杨栋; 秦海洋; 刘剑飞; 董鹏鹏
Original assignee: Xinxiang Aviation Industry Group Co Ltd
Current assignee: Xinxiang Aviation Industry Group Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-22
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a heat exchanger scour prevention structure, including head, cold limit mouthpiece, heat dissipation core, hot limit mouthpiece, casing, the heat dissipation core set up inside the casing, the cold limit mouthpiece set up on the head at casing both ends, the inside cooling tube, the cooling tube intercommunication that erode of cold limit mouthpiece and heat dissipation core, the hot limit mouthpiece setting at the both ends of casing, hot limit mouthpiece and casing intercommunication, the utility model discloses a to the research of heat exchanger scour prevention structure, reduced the erosion and corrosion of cooling tube, improved heat exchanger's life and reliability, accord with the development demand of following airborne equipment, have extensive direction of application and good application prospect.

Description

Anti-scouring structure of heat exchanger

Technical Field

The utility model belongs to the technical field of heat exchanger scour prevention, concretely relates to heat exchanger scour prevention structure.

Background

The demand of the modern society for long-life, high reliability aviation equipment is higher and higher, along with the power of airborne equipment is bigger and bigger, the demand of heat exchange brought with it is more and more urgent, and the heat exchanger plays an increasingly important role as a main equipment of airborne equipment heat dissipation. However, the flow rate of the fluid of the heat exchanger is getting larger and larger at present, and the heat dissipation pipe is often washed and eroded by the high-speed fluid at the shell side fluid inlet part, which seriously restricts the prolonging of the service life of the product and the improvement of the reliability. In order to improve the reliability and the service life of the product, an anti-scouring structure of the heat exchanger is required to be designed to inhibit the product from scouring the radiating pipe. However, the current heat exchanger is usually realized by adopting a impingement plate structure, but because additional impingement plate parts are designed and the impingement plate is subjected to fusion welding, additional parts and welding seams are added, and the reliability of aviation equipment is not improved.

Disclosure of Invention

The utility model aims at: the anti-scouring structure of the heat exchanger is provided, so that the structure of the product is simplified, the number of welding seams is reduced, the reliability is obviously improved, and the scouring problem of the heat exchanger is solved.

The technical scheme of the utility model is that:

the utility model provides a heat exchanger scour prevention structure, includes head (1), cold limit mouth of pipe (2), heat dissipation core (3), hot limit mouth of pipe (4), casing (5), wherein, heat dissipation core (3) set up inside casing (5), cold limit mouth of pipe (2) set up on head (1) at casing (5) both ends, cold limit mouth of pipe (2) and the inside washing away cooling tube (6), cooling tube (7) intercommunication of heat dissipation core (3), hot limit mouth of pipe (4) set up the both ends at casing (5), hot limit mouth of pipe (4) and casing (5) intercommunication.

Radiating core body (3) including scour prevention cooling tube (6), cooling tube (7), baffle (8), end plate (9) be two, two end plate (9) between be provided with baffle (8), baffle (8) on be provided with a plurality of through-holes, scour prevention cooling tube (6), cooling tube (7) pass the through-hole setting on baffle (8) between two end plate (9), scour prevention cooling tube (6) be located the upper portion between two end plate (9), cooling tube (7) be located the lower part between two end plate (9).

The heat dissipation core body (3) adopts a tube array structure.

The anti-scouring radiating pipe (6), the radiating pipe (7) and the end plate (9) of the radiating core body (3) are connected in an expansion interference fit mode or in a brazing mode.

The anti-scouring heat dissipation pipe (6) is provided with a fluid inflow direction, and the heat dissipation pipe (7) is arranged behind the fluid passing through the anti-scouring heat dissipation pipe (6).

The wall thickness of the anti-scouring heat dissipation pipe (6) is 2-3 times that of the heat dissipation pipe (7).

The anti-scouring radiating pipes (6) are arranged in a regular triangle and are arranged in 2 rows.

The technical effects of the utility model are that: the heat exchanger is used as main equipment for radiating airborne equipment, plays more and more important roles, and the invention provides the anti-scouring structure of the heat exchanger, so that the anti-scouring structure of the heat exchanger is researched, the scouring erosion of the radiating pipe is reduced, the service life and the reliability of the heat exchanger are improved, the development requirements of future airborne equipment are met, and the anti-scouring structure has wide application directions and good application prospects.

Drawings

FIG. 1 is a schematic view of a heat exchanger according to the present invention;

FIG. 2 is a front view of a heat dissipating core structure;

3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 A 3- 3 A 3 of 3 FIG. 3 2 3; 3

Wherein, 1, head, 2, cold limit mouth of pipe, 3, heat dissipation core, 4, hot limit mouth of pipe, 5, casing, 6, scour prevention cooling tube, 7, cooling tube, 8, baffle, 9, end plate.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

the utility model provides a heat exchanger scour prevention structure, includes head 1, cold limit mouthpiece 2, heat dissipation core 3, hot limit mouthpiece 4, casing 5, wherein, heat dissipation core 3 set up inside casing 5, cold limit mouthpiece 2 set up on the head 1 at 5 both ends of casing,

cold limit mouthpiece

2 and 3 inside washing out cooling tube 6, the cooling tube 7 intercommunication of heat dissipation core, hot limit mouthpiece 4 set up the both ends at casing 5, hot limit mouthpiece 4 and casing 5 intercommunication.

Radiating core 3 include scour prevention cooling tube 6, cooling tube 7, baffle 8, end plate 9 be two, two end plate 9 between be provided with baffle 8, baffle 8 on be provided with a plurality of through-holes, scour prevention cooling tube 6, cooling tube 7 pass the through-hole setting on baffle 8 between two end plate 9, scour prevention cooling tube 6 be located the upper portion between two end plate 9, cooling tube 7 be located the lower part between two end plate 9. The hot fluid enters the radiating core body 3 from the hot edge nozzle 4 and flows in the cavity between the pipes, the cold fluid enters the radiating core body 3 from the cold edge nozzle 2 and flows in the inner cavity of the pipe, and the heat exchange of the hot fluid and the cold fluid is realized through the anti-scour radiating pipe 6 and the radiating pipe 7. The heat dissipation core 3 adopts a tube array structure.

The anti-scouring radiating pipe 6, the radiating pipe 7 and the end plate 9 of the radiating core body 3 are connected in an expansion interference fit mode or in a brazing mode.

The erosion-proof radiating pipe 6 is provided with a fluid inflow direction, and the radiating pipe 7 is arranged after the fluid passes through the erosion-proof radiating pipe 6. The wall thickness of the anti-scouring heat dissipation pipe 6 is 2-3 times that of the heat dissipation pipe 7. The scour prevention cooling tubes 6 are arranged in a regular triangle and are arranged in 2 rows. The anti-scouring radiating pipes 6 are arranged above the positions of the fluid inlets for scouring the radiating cores and are usually arranged in two staggered rows, the walls of the radiating pipes 7 are thinner, the walls of the anti-scouring radiating pipes 6 are thicker, and the walls of the anti-scouring radiating pipes 6 are usually thicker than the walls of the radiating pipes 7; the wall thickness of the anti-scouring heat dissipation pipe 6 is usually 2-3 times that of the heat dissipation pipe 7; when fluid flows into heat dissipation core 3 through hot edge mouthpiece 4, speed is great, at first erodees scour prevention cooling tube 6, continues flowing through cooling tube 7 after the speed reduction of scour prevention cooling tube 6 to the scour prevention design to the high-speed fluid of entry has been realized.

Claims

1. An anti-scouring structure of a heat exchanger is characterized in that: including head (1), cold limit mouth of pipe (2), heat dissipation core (3), hot limit mouth of pipe (4), casing (5), wherein, heat dissipation core (3) set up inside casing (5), cold limit mouth of pipe (2) set up on head (1) at casing (5) both ends, cold limit mouth of pipe (2) and inside scour prevention cooling tube (6), cooling tube (7) intercommunication of heat dissipation core (3), hot limit mouth of pipe (4) set up the both ends at casing (5), hot limit mouth of pipe (4) and casing (5) intercommunication.

2. An anti-scouring structure for a heat exchanger according to claim 1, characterized in that: radiating core body (3) including scour prevention cooling tube (6), cooling tube (7), baffle (8), end plate (9) be two, two end plate (9) between be provided with baffle (8), baffle (8) on be provided with a plurality of through-holes, scour prevention cooling tube (6), cooling tube (7) pass the through-hole setting on baffle (8) between two end plate (9), scour prevention cooling tube (6) be located the upper portion between two end plate (9), cooling tube (7) be located the lower part between two end plate (9).

3. An anti-scouring structure for a heat exchanger according to claim 2, characterized in that: the heat dissipation core body (3) adopts a tube array structure.

4. An anti-scouring structure for a heat exchanger according to claim 2, characterized in that: the anti-scouring radiating pipe (6), the radiating pipe (7) and the end plate (9) of the radiating core body (3) are connected in an expansion interference fit mode or in a brazing mode.

5. An anti-scouring structure for a heat exchanger according to claim 2, characterized in that: the anti-scouring heat dissipation pipe (6) is provided with a fluid inflow direction, and the heat dissipation pipe (7) is arranged behind the fluid passing through the anti-scouring heat dissipation pipe (6).

6. An anti-scouring structure for a heat exchanger according to claim 2, characterized in that: the wall thickness of the anti-scouring heat dissipation pipe (6) is 2-3 times that of the heat dissipation pipe (7).

7. An anti-scouring structure for a heat exchanger according to claim 2, characterized in that: the anti-scouring radiating pipes (6) are arranged in a regular triangle and are arranged in 2 rows.