CN220227030U

CN220227030U - Corrosion-resistant intercooler

Info

Publication number: CN220227030U
Application number: CN202321642694.XU
Authority: CN
Inventors: 陈辉; 姜冠群; 柯显峰; 张赢军; 徐海军
Original assignee: Huangshi Gaonaisi Equipment Co ltd
Current assignee: Huangshi Gaonaisi Equipment Co ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-12-22
Anticipated expiration: 2033-06-27

Abstract

The utility model provides a corrosion-resistant intercooler, which comprises an inlet end cover, an outlet end cover and a return end cover, wherein a core group is arranged between the inlet end cover and the return end cover, the core group comprises a first end plate and a second end plate which are arranged in parallel, a plurality of heat exchange tubes are connected between the first end plate and the second end plate, and two ends of each heat exchange tube respectively penetrate through the first end plate and the second end plate and then are communicated with the corresponding return end cover and the inlet end cover and the outlet end cover; the outer side surfaces of the first end plate and the second end plate are respectively provided with a concave cavity, an anti-corrosion plate is embedded in the concave cavities, and a plurality of through holes corresponding to the heat exchange tubes are formed in the anti-corrosion plate. According to the utility model, the concave cavities are formed in the outer sides of the end plates on the two sides of the core group, and the corrosion-proof plates are embedded in the concave cavities to isolate the corrosion of the seawater to the end plates, so that the risk of corrosion cracking caused by long-term contact of the core group end plates with the seawater is avoided, and the corrosion resistance of the intercooler when the intercooler adopts the seawater as a cooling medium is improved; and can regularly change anticorrosive board, further promote intercooler's life.

Description

Corrosion-resistant intercooler

Technical Field

The utility model relates to the technical field of intercoolers, in particular to a corrosion-resistant intercooler.

Background

In order to improve the power and performance of a marine diesel engine, the existing marine diesel engine is generally provided with a turbocharger, and gas pressurized by the turbocharger can enter a cylinder after being cooled by an intercooler, and the intercooler used on a ship generally adopts seawater as a cooling medium to circulate into a water cavity of the intercooler, so that the high-temperature gas is cooled.

The existing water-cooled intercooler consists of a heat dissipation core, an upper end cover, a lower end cover, side plates, bolts and the like, wherein the inner cavity of the lower end cover comprises a water inlet cavity and a water outlet cavity, a water inlet is arranged on the water inlet cavity, and a water outlet is arranged on the water outlet cavity; although the seawater has better cooling effect, the seawater also has stronger corrosiveness, the seawater can directly contact with the end face of the heat dissipation core after entering the upper end cover and the lower end cover, the end face of the heat dissipation core is used for sealing and fixing the heat exchange tube, and the end face can be severely corroded after the seawater contacts the end face of the heat dissipation core for a long time.

Disclosure of Invention

The utility model provides a corrosion-resistant intercooler, which solves the problem that when seawater is used as a cooling medium of the intercooler in the prior art, the seawater can seriously corrode the end face of a radiating core after contacting the end face for a long time.

The technical scheme of the utility model is realized as follows:

the corrosion-resistant intercooler comprises an inlet end cover and an outlet end cover, a core group is arranged between the inlet end cover and the outlet end cover, the core group comprises a first end plate and a second end plate which are arranged in parallel, a plurality of heat exchange tubes are connected between the first end plate and the second end plate, and two ends of each heat exchange tube are communicated with the corresponding outlet end cover and the inlet end cover after penetrating through the first end plate and the second end plate respectively; the outer side surfaces of the first end plate and the second end plate are provided with concave cavities, pipe orifices of the heat exchange pipes are located in the concave cavities, anti-corrosion plates are embedded in the concave cavities, and the anti-corrosion plates are provided with a plurality of through holes corresponding to the heat exchange pipes.

According to the utility model, the concave cavities are formed in the outer sides of the end plates at the two sides of the core group, the anti-corrosion plates are embedded and arranged in the concave cavities, the end parts of the heat exchange tubes can penetrate out of the through holes in the anti-corrosion plates, and the corrosion of seawater to the end plates can be isolated through the anti-corrosion plates, so that the end plates at the two sides of the core group are prevented from being severely corroded due to long-term contact with the seawater, and the anti-corrosion performance of the intercooler when the seawater is used as a cooling medium is improved; and can regularly change anticorrosive board, further promote intercooler's life.

As a preferable scheme of the utility model, a rigid plate is embedded in the concave cavity, the rigid plate is positioned at the outer side of the anti-corrosion plate, and a plurality of through holes corresponding to the heat exchange tubes are arranged on the rigid plate.

As a preferable scheme of the utility model, the rigid plate is made of stainless steel material, and the rigid plate made of stainless steel material is arranged on the outer side of the anti-corrosion plate, so that the anti-corrosion plate can be matched with the end cover on the outer side to prop against the anti-corrosion plate, and the anti-corrosion plate is firmly embedded in the concave cavity, thereby improving the installation firmness of the anti-corrosion plate; on the other hand, the stainless steel rigid plate has certain corrosion resistance, and the corrosion resistance effect of the intercooler end plate can be further improved.

As a preferable scheme of the utility model, a first partition plate is arranged in the return end cover, and the first partition plate divides the interior of the return end cover into a first reversing water cavity and a second reversing water cavity;

two parallel second partition boards are arranged in the inlet and outlet end cover, and divide the inlet and outlet end cover into a water inlet cavity, a third reversing water cavity and a water outlet cavity;

the first reversing water cavity is communicated with the water inlet cavity and the third reversing water cavity through a plurality of heat exchange pipes, the third reversing water cavity is communicated with the first reversing water cavity and the second reversing water cavity through a plurality of heat exchange pipes, and the second reversing water cavity is communicated with the third reversing water cavity and the water outlet cavity through a plurality of heat exchange pipes;

the side wall of the water inlet cavity is provided with a water inlet, and the side wall of the water outlet cavity is provided with a water outlet.

According to the utility model, the first partition plate is arranged in the return end cover to divide the interior of the return end cover into the first reversing water cavity and the second reversing water cavity, and the two parallel second partition plates are arranged in the inlet end cover to divide the inlet end cover into the water inlet cavity, the third reversing water cavity and the water outlet cavity, so that the seawater passes through four times of flow in the heat exchange tubes of the core group, the heat of high-temperature gas is fully absorbed, and the heat exchange efficiency of the intercooler is greatly improved.

As a preferable scheme of the utility model, a first sealing gasket is arranged between the first end plate and the return end cover, and a second sealing gasket is arranged between the second end plate and the inlet and outlet end cover; the sealing gasket is arranged between the end plate and the end cover, so that the sealing performance of the end cover and the core assembly is further improved; in addition, the sealing gasket can also prevent the end face of the peripheral part of the concave cavity of the end plate from being corroded by seawater, so that the corrosion resistance of the intercooler is further improved.

As a preferable scheme of the utility model, a first sealing strip corresponding to the first partition board is arranged in the middle of the first sealing gasket, and a second sealing strip corresponding to the second partition board is arranged in the middle of the second sealing gasket; through set up the sealing strip that corresponds with the baffle at sealing washer's middle part, can further promote the leakproofness of baffle and rigid plate butt, further improved the isolation effect of baffle to the inside cavity of end cover.

As a preferable scheme of the utility model, the anti-corrosion plate, the first sealing gasket and the second sealing gasket are all made of nitrile rubber material, and the nitrile rubber has good seawater corrosion resistance and sealing property.

As a preferable scheme of the utility model, the core group further comprises a pair of parallel sealing plates, the two sealing plates, the first end plate and the second end plate are surrounded to form a heat exchange channel, a plurality of radiating fins arranged at intervals are arranged in the heat exchange channel, and the radiating fins are arranged on the heat exchange tube; the heat exchange channel is used for introducing a gas medium to be cooled, heat can be transferred to the heat radiating fins when the gas passes through the channel, and then transferred to the heat exchange tube, and the heat is taken away by the heat exchange medium flowing in the heat exchange tube, so that the gas medium in the heat exchange channel is cooled rapidly.

As a preferable scheme of the utility model, the side walls of the inlet end cover and the outlet end cover are also provided with mounting holes for mounting anti-corrosion core rods, the mounting holes are used for mounting plugs, the inner sides of the plugs are used for mounting the anti-corrosion core rods, the anti-corrosion core rods are mounted on the side walls of the re-end covers, the core rods are used as sacrificial anodes (as zinc is more active than iron, electrons are preferentially lost to generate chemical reaction, so that corrosion of the iron is inhibited), and the corrosion of seawater to the intercooler can be further reduced.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the concave cavities are formed in the outer sides of the end plates at the two sides of the core group, the anti-corrosion plates are embedded and arranged in the concave cavities, the end parts of the heat exchange tubes can penetrate out of the through holes in the anti-corrosion plates, and the corrosion of seawater to the end plates can be isolated through the anti-corrosion plates, so that the risk of corrosion cracking caused by long-term contact of the end plates at the two sides of the core group with seawater is avoided, and the anti-corrosion performance of the intercooler when the seawater is used as a cooling medium is improved; the corrosion-resistant plate can be replaced regularly, so that the service life of the intercooler is further prolonged;

(2) According to the utility model, the stainless steel rigid plate is arranged on the outer side of the anti-corrosion plate, so that the anti-corrosion plate can be matched with the outer end cover to prop against the anti-corrosion plate, and the anti-corrosion plate is firmly embedded in the concave cavity, so that the installation firmness of the anti-corrosion plate is improved; on the other hand, the stainless steel rigid plate has certain corrosion resistance, so that the corrosion resistance of the intercooler end plate can be further improved;

(3) According to the utility model, the first partition plate is arranged in the return end cover to divide the interior of the return end cover into the first reversing water cavity and the second reversing water cavity, and the two parallel second partition plates are arranged in the inlet end cover to divide the inlet end cover into the water inlet cavity, the third reversing water cavity and the water outlet cavity, so that the seawater passes through four times of flow in the heat exchange tubes of the core group, the heat of high-temperature gas is fully absorbed, and the heat exchange efficiency of the intercooler is greatly improved;

(4) According to the utility model, the sealing gasket is arranged between the end plate and the end cover, so that the sealing performance of the end cover and the core assembly is further improved; in addition, the sealing gasket can also prevent the end face of the peripheral part of the concave cavity of the end plate from being corroded by seawater, so that the corrosion resistance of the intercooler is further improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of a corrosion resistant intercooler of the present utility model;

FIG. 2 is another schematic explosion diagram of a corrosion resistant intercooler of the present utility model;

FIG. 3 is a schematic view of a core assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of the principle of operation of the intercooler of the present utility model;

in the figure: 1. an access end cap; 2. a return end cap; 3. a core group; 4. a first end plate; 5. a second end plate; 6. a heat exchange tube; 7. a cavity; 8. an anti-corrosion plate; 9. a rigid plate; 10. a first separator; 11. a first reversing water chamber; 12. a second reversing water chamber; 13. a second separator; 14. a water inlet cavity; 15. a third reversing water cavity; 16. a water outlet cavity; 17. a water inlet; 18. a water outlet; 19. a first sealing gasket; 20. a second sealing gasket; 21. a first sealing strip; 22. a second sealing strip; 23. a sealing plate; 24. a heat radiation fin; 25. and (5) mounting holes.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, the present embodiment provides a corrosion-resistant intercooler, including an inlet and outlet end cover 1 and a return end cover 2, a core group 3 is disposed between the inlet and outlet end cover 1 and the return end cover 2, the core group 3 includes a first end plate 4 and a second end plate 5 that are disposed in parallel, a plurality of heat exchange tubes 6 (a plurality of heat exchange tubes 6 are arranged in an array) are connected between the first end plate 4 and the second end plate 5, and two ends of the heat exchange tubes 6 respectively penetrate through the first end plate 4 and the second end plate 5 and then are communicated with the corresponding return end cover 2 and the inlet and outlet end cover 1; the cavity 7 has all been seted up to the lateral surface of first end plate 4, second end plate 5, and the mouth of pipe of a plurality of heat exchange tubes 6 all is located cavity 7, cavity 7 is inside to be inlayed and is equipped with anticorrosive board 8, be equipped with a plurality of through-holes that correspond with heat exchange tube 6 on the anticorrosive board 8, the tip of heat exchange tube 6 communicates with the corresponding through-hole on the anticorrosive board 8 (the tip of heat exchange tube 6 can pass the corresponding through-hole of anticorrosive board 8, also can be parallel and level with the through-hole of anticorrosive board 8).

According to the embodiment, the concave cavities 7 are formed in the outer sides of the end plates at the two sides of the core group 3, the anti-corrosion plates 8 are embedded in the concave cavities 7, the end parts of the heat exchange tubes 6 can penetrate out of the through holes in the anti-corrosion plates 8, corrosion of seawater to the end plates can be isolated through the anti-corrosion plates 8, the risk of corrosion cracking caused by long-term contact of the end plates at the two sides of the core group 3 with seawater is avoided, and the anti-corrosion performance of an intercooler when the intercooler adopts seawater as a cooling medium is improved; and the anti-corrosion plate 8 can be replaced regularly, so that the service life of the intercooler is further prolonged.

As a preferable scheme of the embodiment, a rigid plate 9 made of stainless steel (the specific material can be selected according to practical situations) is further embedded in the concave cavity 7, the rigid plate 9 is positioned at the outer side of the anti-corrosion plate 8, and a plurality of through holes corresponding to the heat exchange tubes 6 are formed in the rigid plate 9; the rigid plate 9 made of stainless steel is arranged on the outer side of the anti-corrosion plate 8, so that the anti-corrosion plate 8 can be matched with an end cover on the outer side to prop against the anti-corrosion plate 8, the anti-corrosion plate 8 is firmly embedded in the concave cavity 7, and the installation firmness of the anti-corrosion plate 8 is improved; on the other hand, the stainless steel rigid plate 9 has certain corrosion resistance, so that the corrosion resistance effect of the intercooler end plate can be further improved.

In the implementation process, the sum of the thickness of the rigid plate 9 and the thickness of the corrosion-resistant plate 8 is matched with the depth of the concave cavity 7.

As a preferable scheme of the embodiment, a first partition board 10 is arranged inside the return end cover 2, and the first partition board 10 divides the inside of the return end cover 2 into a first reversing water cavity 11 and a second reversing water cavity 12;

two parallel second partition plates 13 are arranged in the inlet and outlet end cover 1, and the two second partition plates 13 divide the inlet and outlet end cover 1 into a water inlet cavity 14, a third reversing water cavity 15 and a water outlet cavity 16;

the position of the first partition board 10 corresponds to the position between the two second partition boards 13, namely, the first reversing water cavity 11 is communicated with the water inlet cavity 14 and the third reversing water cavity 15 through a plurality of heat exchange pipes 6, the third reversing water cavity 15 is communicated with the first reversing water cavity 11 and the second reversing water cavity 12 through a plurality of heat exchange pipes 6, and the second reversing water cavity 12 is communicated with the third reversing water cavity 15 and the water outlet cavity 16 through a plurality of heat exchange pipes 6;

the side wall of the water inlet cavity 14 is provided with a water inlet 17, and the side wall of the water outlet cavity 16 is provided with a water outlet 18.

According to the embodiment, the first partition board 10 is arranged inside the return end cover 2 to divide the interior of the return end cover 2 into the first reversing water cavity 11 and the second reversing water cavity 12, and the two parallel second partition boards 13 are arranged inside the inlet and outlet end cover 1 to divide the inlet and outlet end cover 1 into the water inlet cavity 14, the third reversing water cavity 15 and the water outlet cavity 16, so that the seawater passes through four times of processes in the heat exchange tube 6 of the core group 3, the heat of high-temperature gas is fully absorbed, and the heat exchange efficiency of the intercooler is greatly improved.

As a preferable scheme of the embodiment, a first sealing gasket 19 is arranged between the first end plate 4 and the return end cover 2, and a second sealing gasket 20 is arranged between the second end plate 5 and the inlet and outlet end cover 1; the sealing gasket is arranged between the end plate and the end cover, so that the sealing performance of the end cover and the core group 3 is further improved; in addition, the sealing gasket can also prevent the end face of the peripheral part of the concave cavity 7 of the end plate from being corroded by seawater, so that the corrosion resistance of the intercooler is further improved.

As a preferable solution of this embodiment, a first sealing strip 21 corresponding to the first partition board 10 is provided at the middle part of the first sealing gasket 19, and a second sealing strip 22 corresponding to the second partition board 13 is provided at the middle part of the second sealing gasket 20; through set up the sealing strip that corresponds with the baffle at sealing washer's middle part, can further promote the leakproofness of baffle and rigid plate 9 butt, further improved the isolation effect of baffle to the inside cavity of end cover.

As a preferable scheme of this embodiment, the anti-corrosion plate 8, the first sealing gasket 19 and the second sealing gasket 20 are all made of nitrile rubber material, and the nitrile rubber has good seawater corrosion resistance and sealing property.

As shown in fig. 3, as a preferred solution of this embodiment, the core unit 3 further includes a pair of parallel sealing plates 23, two sealing plates 23, the first end plate 4 and the second end plate 5 enclose to form a heat exchange channel, a plurality of heat dissipation fins 24 are disposed in the heat exchange channel at intervals, and the heat dissipation fins 24 are mounted on the heat exchange tube 6; the heat exchange channel is used for introducing a gas medium to be cooled, and heat can be transferred to the heat dissipation fins 24 when the gas passes through the channel and then transferred to the heat exchange tube 6, and the heat is taken away by the heat exchange medium flowing in the heat exchange tube 6, so that the gas medium in the heat exchange channel is cooled rapidly.

As a preferable scheme of this embodiment, the side walls of the access end cover 1 and the return end cover 2 are further provided with mounting holes 25 for mounting anti-corrosion core rods, the mounting holes 25 are used for mounting plugs, the inner sides of the plugs are used for mounting the anti-corrosion core rods, the anti-corrosion core rods are mounted on the side walls of the re-end covers, the core rods are used as sacrificial anodes (as zinc is more active than iron, electrons are preferentially lost to generate chemical reactions, so that corrosion of the iron is inhibited), and corrosion of seawater to the intercooler can be further reduced.

As shown in fig. 4, the working principle of the intercooler in this embodiment is as follows:

the flow of the medium to be cooled (high temperature gas) is as follows: when the high-temperature gas to be cooled passes through the heat exchange channel, heat is transferred to the heat radiating fins 24 and then to the heat exchange tube 6, and then the heat is taken away by the heat exchange medium flowing in the heat exchange tube 6, so that the gas medium in the heat exchange channel is cooled rapidly; in fig. 4, the dashed arrow indicates the flow of the medium to be cooled.

The flow of the cooling medium (sea water) is as follows:

seawater flows into the water inlet cavity 14 of the inlet and outlet end cover 1 from the water inlet 17, and then sequentially passes through the second end plate 5, the heat exchange tubes 6 of the first layer and the first end plate 4 to enter the first reversing water cavity 11 of the return end cover 2 for reversing (first flow path);

then sequentially passes through the first end plate 4, the heat exchange tube 6 of the second layer and the second end plate 5 to enter the third reversing water cavity 15 of the inlet and outlet end cover 1 for reversing (second flow path);

then sequentially passes through the second end plate 5, the third layer of heat exchange tubes 6 and the first end plate 4 and enters the second reversing water cavity 12 of the return end cover 2 for reversing (third flow path);

finally, the water enters the water outlet cavity 16 of the inlet and outlet end cover 1 through the first end plate 4, the heat exchange tube 6 of the fourth layer and the second end plate 5 in sequence, and finally is discharged through the water outlet 18 of the water outlet cavity 16 (fourth flow path);

in fig. 4, solid arrows represent the flow of seawater, which passes through four flows in the heat exchange tube 6 of the core group 3, fully absorbs the heat of high-temperature gas, and greatly improves the heat exchange efficiency of the intercooler.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The corrosion-resistant intercooler is characterized by comprising an inlet end cover (1) and an outlet end cover (2), wherein a core group (3) is arranged between the inlet end cover (1) and the outlet end cover (2); the core group (3) comprises a first end plate (4) and a second end plate (5) which are arranged in parallel, a plurality of heat exchange tubes (6) are connected between the first end plate (4) and the second end plate (5), and two ends of each heat exchange tube (6) respectively penetrate through the first end plate (4) and the second end plate (5) and then are communicated with the corresponding return end cover (2) and the corresponding inlet and outlet end cover (1); the heat exchange tube comprises a first end plate (4) and a second end plate (5), wherein the outer side faces of the first end plate and the second end plate are provided with concave cavities (7), tube orifices of a plurality of heat exchange tubes (6) are located in the concave cavities (7), anti-corrosion plates (8) are embedded in the concave cavities (7), and a plurality of through holes corresponding to the heat exchange tubes (6) are formed in the anti-corrosion plates (8).

2. A corrosion-resistant intercooler according to claim 1, wherein the corrosion-resistant plate (8) is made of nitrile rubber material.

3. The corrosion-resistant intercooler as claimed in claim 1, wherein a rigid plate (9) is further embedded in the cavity (7), the rigid plate (9) is located at the outer side of the corrosion-resistant plate (8), and a plurality of through holes corresponding to the heat exchange tubes (6) are formed in the rigid plate (9).

4. A corrosion-resistant charge air cooler as claimed in claim 3, characterized in that the rigid plate (9) is made of stainless steel material.

5. A corrosion resistant intercooler according to claim 1, wherein a first sealing gasket (19) is arranged between the first end plate (4) and the return end cap (2), and a second sealing gasket (20) is arranged between the second end plate (5) and the access end cap (1).

6. The corrosion-resistant intercooler according to claim 1, wherein a first partition plate (10) is arranged inside the return end cover (2), and the first partition plate (10) divides the inside of the return end cover (2) into a first reversing water cavity (11) and a second reversing water cavity (12);

two parallel second partition plates (13) are arranged in the inlet and outlet end cover (1), and the inlet and outlet end cover (1) is divided into a water inlet cavity (14), a third reversing water cavity (15) and a water outlet cavity (16) by the two second partition plates (13);

the first reversing water cavity (11) is communicated with the water inlet cavity (14) and the third reversing water cavity (15) through a plurality of heat exchange tubes (6), the third reversing water cavity (15) is communicated with the first reversing water cavity (11) and the second reversing water cavity (12) through a plurality of heat exchange tubes (6), and the second reversing water cavity (12) is communicated with the third reversing water cavity (15) and the water outlet cavity (16) through a plurality of heat exchange tubes (6);

the side wall of the water inlet cavity (14) is provided with a water inlet (17), and the side wall of the water outlet cavity (16) is provided with a water outlet (18).

7. The corrosion-resistant intercooler according to claim 6, wherein a first sealing gasket (19) is arranged between the first end plate (4) and the return end cap (2), and a second sealing gasket (20) is arranged between the second end plate (5) and the inlet and outlet end cap (1); the middle part of first sealing washer (19) is equipped with first sealing strip (21) that correspond with first baffle (10), the middle part of second sealing washer (20) is equipped with second sealing strip (22) that correspond with second baffle (13).

8. The corrosion-resistant intercooler as set forth in claim 7, wherein the first sealing gasket (19) and the second sealing gasket (20) are made of nitrile rubber.

9. The corrosion-resistant intercooler as claimed in claim 1, wherein a heat exchange channel is provided in the core assembly (3), a plurality of heat dissipation fins (24) are provided in the heat exchange channel at intervals, and the heat dissipation fins (24) are mounted on the heat exchange tube (6).

10. A corrosion resistant intercooler according to claim 1, wherein the side walls of the access end cap (1) and the return end cap (2) are further provided with mounting holes (25) for mounting corrosion resistant core rods.