CN216925198U

CN216925198U - Partitioned heat exchanger

Info

Publication number: CN216925198U
Application number: CN202220372290.2U
Authority: CN
Inventors: 夏建玲; 黄建忠; 朱文叶
Original assignee: Shuangmu Thermal Technology Shanghai Co ltd
Current assignee: Shuangmu Energy Equipment Technology Shanghai Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-07-08
Anticipated expiration: 2032-02-23

Abstract

The utility model relates to a technical field of heat exchanger, a subregion heat exchanger is disclosed, it includes the heat exchanger frame, the heat exchanger frame divide into liquefaction region and supercooling region, be provided with a plurality of first heat exchange tubes on the liquefaction region, first heat exchange tube both ends form air inlet and leakage fluid dram respectively, be provided with the inlet manifold with a plurality of air inlet intercommunication on the heat exchanger frame, still be provided with first collection pipe on the heat exchanger frame, first collection pipe divide into flowing back collection pipe and with the feed liquor collection pipe of a plurality of fluid-discharge tubes intercommunication, be provided with orifice plate between flowing back collection pipe and the feed liquor collection pipe, be provided with the second heat exchange tube with flowing back collection pipe intercommunication on the supercooling region, be provided with first fin and second fin on first heat exchange tube and the second heat exchange tube outer wall respectively. This application has the condition that reduces steam and directly takes place by discharging in the heat exchanger, improves the heat exchange efficiency's of heat exchanger effect.

Description

Partitioned heat exchanger

Technical Field

The application relates to the field of heat exchangers, in particular to a partitioned heat exchanger.

Background

With the social development, the types of the existing industrial electric appliances are more and more, and the heat exchanger is one of the electric appliances which are applied more by the enterprises at present. The heat exchanger is a device for realizing heat transfer between materials between two or more than two fluids with different temperatures, heat is transferred to the fluid with lower temperature from the fluid with higher temperature, and enterprises mainly apply heaters, coolers, condensers, evaporators, reboilers and the like.

Among the correlation technique, a heat exchanger, the power distribution box comprises a box body, wear to be equipped with a plurality of heat exchange tubes in the box, the heat exchange tube adopts the better pure copper of heat conductivity or pure aluminium preparation usually, the heat exchange tube is S-shaped and arranges the setting, the both ends of heat exchange tube are formed with import and export respectively, the import height is higher than the export height, so set up the import in box upper portion owing to be the injected water vapour, be provided with the heat transfer fin that is used for accelerating heat exchange tube heat exchange efficiency in the box, the box all is provided with the manifold in the import and the export of heat exchange tube, during operation with the water vapour injection with the intake communicate gather intraductally, thereby the heat transfer through the heat exchange tube is in export discharge liquefied water.

To the correlation technique among the above-mentioned, the inventor thinks directly to pour into the heat transfer pipe with steam by the import among the correlation technique, because steam has certain pressure, thereby can have more steam and not fully to discharge by export is direct with the contact of heat transfer pipeline when using to lead to steam not to carry out abundant condensation liquefaction, lead to the heat exchanger can not be abundant carry out the heat transfer, seriously influence the heat exchange efficiency of heat exchanger.

SUMMERY OF THE UTILITY MODEL

In order to reduce the direct condition emergence of discharging in by the heat exchanger of steam, improve the heat exchange efficiency of heat exchanger, this application provides a subregion heat exchanger.

The application provides a subregion heat exchanger adopts following technical scheme:

the utility model provides a subregion heat exchanger, includes the heat exchanger frame, the heat exchanger frame divide into liquefaction region and subcooling region, be provided with a plurality of first heat exchange tubes on the liquefaction region, first heat exchange tube both ends form air inlet and leakage fluid dram respectively, be provided with on the heat exchanger frame with a plurality of the inlet manifold of air inlet intercommunication, still be provided with first collection pipe on the heat exchanger frame, first collection pipe divide into the flowing back collection pipe and with a plurality of the feed liquor collection pipe of leakage fluid dram intercommunication, the flowing back collection pipe with be provided with orifice plate between the feed liquor collection pipe, be provided with on the subcooling region with the second heat exchange tube of flowing back collection pipe intercommunication, first heat exchange tube with be provided with first fin and second fin on the second heat exchange tube outer wall respectively.

By adopting the technical scheme, when the heat exchanger works, a worker injects steam into the air inlet main pipe and then flows into the first heat exchange pipe, the temperature of the first heat exchange pipe is reduced through the first fin, so that the steam is condensed and liquefied and flows into the first confluence pipe, then the steam is injected into the liquid drainage confluence pipe through the throttling hole plate and flows into the second heat exchange pipe, the temperature of the second heat exchange pipe is reduced through the second fin, so that condensed and liquefied liquid generates a supercooling effect, and finally the liquid after heat exchange is discharged; adopt such design to make the liquid of condensation slowly gather intraductal flow direction flowing back by the feed liquor through orifice plate and gather intraductally, can avoid appearing the phenomenon of flash distillation on the one hand, make the liquid of condensation stably carry out the heat transfer, ensure the heat exchange efficiency of heat exchanger, on the other hand adopts the flow that such design can control liquid, make the feed liquor gather intraductally can keep the liquid that contains the condensation, thereby guarantee that steam can not directly pour into in the second heat exchange pipe, thereby can make that steam can be abundant carry out the condensation liquefaction in first heat exchange pipe, improve the heat exchange efficiency of heat exchanger.

Preferably, the second heat exchange tube is provided with a plurality of, the both ends of second heat exchange tube are formed with feed liquor hole and outage respectively, be provided with on the subcooling region with a plurality of the second collection pipe of feed liquor hole intercommunication, the second collection pipe with flowing back collection pipe intercommunication, still be provided with on the subcooling region with a plurality of the third collection pipe of outage intercommunication.

Through adopting above-mentioned technical scheme, adopt such design can be through adopting a plurality of second heat exchange tubes to carry out the heat transfer simultaneously, increase the efficiency of heat exchanger heat transfer.

Preferably, a communicating pipe is arranged between the second collecting pipe and the liquid discharge collecting pipe, the communicating pipe is arranged at the upper part of the second collecting pipe, and one end, close to the liquid inlet hole, of the second heat exchange pipe is arranged at the lower part of the second collecting pipe.

Through adopting above-mentioned technical scheme, adopt such design can make the liquid of condensation pour into a plurality of second heat exchange pipes into more evenly, improve the heat exchange efficiency of heat exchanger.

Preferably, the second heat exchange tube is arranged in an upward inclined manner, and the height of the liquid inlet hole is lower than that of the liquid outlet hole.

Through adopting above-mentioned technical scheme, adopt the design like this not only can make the liquid after the condensation can be abundant contact with the second heat exchange pipe, improve the heat exchange efficiency of second heat exchange pipe, can also provide certain pressure and avoid in steam gets into the second heat exchange pipe to can reduce the direct condition emergence that gets into in the second heat exchange pipe of steam, improve the heat exchange efficiency of heat exchanger.

Preferably, the first heat exchange tube is arranged in a downward inclined mode, and the height of the air inlet is higher than that of the liquid outlet.

Through adopting above-mentioned technical scheme, adopt such design can make steam directly get into first gathering intraductally after the condensation liquefaction, can make steam contact with first heat exchange tube better, improve the heat exchange efficiency of first heat exchange tube.

Preferably, the first fin and the second fin are both spiral and are respectively sleeved on the first heat exchange tube and the second heat exchange tube.

Through adopting above-mentioned technical scheme, adopt such design can make first fin and second fin can contact with the air better, improve the heat exchange efficiency of heat exchanger.

Preferably, a fixing plate for fixing the first heat exchange tube and the second heat exchange tube is arranged on the heat exchanger frame.

Through adopting above-mentioned technical scheme, adopt the fixed plate to make first heat exchange tube and second heat exchange tube can fix more stably, improve stability and the intensity that the device used.

Preferably, the heat exchanger frame is provided with an air inlet pipe communicated with the air inlet main pipe and a liquid discharge pipe communicated with the third collecting pipe, the air inlet pipe is provided with a connecting flange, and the liquid discharge pipe is provided with a fixing flange.

Through adopting above-mentioned technical scheme, adopt flange and mounting flange to make the staff can carry out connecting tube more conveniently, improve the convenience that the device used.

In summary, the present application includes at least one of the following beneficial technical effects:

by adopting the throttling orifice plate, on one hand, the condensed liquid can be prevented from entering the liquid discharge collecting pipe to generate a flash evaporation phenomenon, so that the condensed liquid can stably exchange heat in the second heat exchange pipe, the heat exchange efficiency of the second heat exchange pipe is improved, on the other hand, the liquid discharge collecting pipe can be always kept with the condensed liquid, so that the steam can be prevented from directly entering the second heat exchange pipe, the steam can be fully condensed and liquefied in the first heat exchange pipe, and the heat exchange efficiency of the heat exchanger is improved;

the end part of the second heat exchange tube close to the liquid inlet hole is fixed at the lower part of the second collecting tube by adopting the second collecting tube, and the communicating tube is arranged at the upper part of the second collecting tube and is connected with the first collecting tube;

the second heat exchange tube that adopts the tilt up to set up can make the abundant and second heat exchange tube of liquid of condensation contact, improves the heat exchange efficiency of second heat exchange tube, can also provide certain pressure to avoid steam to directly get into in the second heat exchange tube by the orifice plate, improve the heat exchange efficiency of heat exchanger.

Drawings

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

Fig. 2 is an exploded view of a zoned heat exchanger according to an embodiment of the present application.

Fig. 3 is a cross-sectional view of a zoned heat exchanger according to an embodiment of the present application.

Reference numerals: 1. a first fin; 2. a heat exchanger frame; 3. an air inlet pipe; 4. a connecting flange; 5. an intake manifold; 6. a first heat exchange tube; 7. a fixing plate; 8. a third manifold; 9. a liquid discharge pipe; 10. a fixed flange; 11. a second manifold; 12. a second fin; 13. a second heat exchange tube; 14. inserting holes; 15. an air inlet; 16. a liquid discharge port; 17. a drain hole; 18. a communicating pipe; 19. a liquid inlet hole; 20. a first manifold; 21. a liquid inlet collecting pipe; 22. a liquid discharge manifold; 23. a restriction orifice; 24. a supercooled region; 25. a liquefaction zone.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses subregion heat exchanger.

Referring to fig. 2 and 3, a zoned heat exchanger includes a heat exchanger frame 2, the heat exchanger frame 2 is a rectangular frame and is formed by square pipes, two fixing plates 7 are vertically fixed on the heat exchanger frame 2, a plurality of inserting holes 14 are formed on the fixing plates 7, the heat exchanger frame 2 is divided into an upper liquefaction area 25 and a lower supercooling area 24, a plurality of first heat exchanging pipes 6 are inserted and fixed on the liquefaction area 25 of the fixing plates 7, an air inlet 15 and a liquid outlet 16 are respectively formed at two ends of each first heat exchanging pipe 6, an air inlet header pipe 5 communicated with the plurality of air inlets 15 is fixed on one side of the heat exchanger frame 2, the air inlet header pipe 5 is circular, an air inlet pipe 3 is fixed on the air inlet header pipe 5, a connecting flange 4 is fixed on one side of the air inlet pipe 3 away from the air inlet header pipe 5, a first header pipe 20 is fixed on one side of the heat exchanger frame 2 away from the air inlet header pipe 5, the first header pipe 20 is circular, the first collecting pipe 20 is divided into a liquid discharge collecting pipe 22 located at the lower part and a liquid inlet collecting pipe 21 located at the upper part and communicated with the liquid discharge ports 16, a throttle orifice plate 23 is fixed between the liquid inlet collecting pipe 21 and the liquid discharge collecting pipe 22, the throttle orifice plate 23 is disc-shaped, the fixing plate 7 is fixedly connected with two second heat exchange pipes 13 communicated with the liquid discharge collecting pipe 22 in an inserted manner in a supercooling region 24, and the outer walls of the first heat exchange pipe 6 and the second heat exchange pipes 13 are respectively sleeved with a first fin 1 and a second fin 12.

When in operation, steam is injected into the air inlet header pipe 5 and flows into the first heat exchange pipe 6, heat exchange is carried out through the first fins 1, so that the steam is condensed and liquefied and is injected into the first header pipe 20 from the liquid outlet 16, after passing through the orifice plate 23, enters the second heat exchange tube 13, and through the heat exchange of the second fin 12, thereby reducing the temperature of the condensed liquid and leading the liquid to achieve the supercooling effect, effectively controlling the flash evaporation phenomenon by adopting the design, so that the condensed liquid can be fully contacted with the second heat exchange tube 13, and the design can also ensure that the side of the throttling orifice plate 23 close to the first heat exchange tube 6 can slowly lead the liquid to enter the liquid discharge collecting tube 22, therefore, the steam can be prevented from entering the liquid discharge collecting pipe 22 to a certain extent, the situation that the steam directly enters the second heat exchange pipe 13 can be reduced, and the overall heat exchange efficiency of the heat exchanger is improved.

Referring to fig. 1 and 2, the second heat exchange tube 13 is bent and is U-shaped at the bent portion, a liquid inlet hole 19 and a liquid outlet hole 17 are formed at each end of the second heat exchange tube 13, the second heat exchange tube 13 is inclined upward, the liquid inlet hole 19 is lower than the liquid outlet hole 17, a second collecting pipe 11 communicated with the two liquid inlet holes 19 is fixed on the supercooling region 24, the second collecting pipe 11 is circular, the second heat exchange tube 13 is fixed at the lower portion of the second collecting pipe 11 at the liquid inlet hole 19, a communicating pipe 18 communicated with the liquid outlet collecting pipe 22 is fixed at the upper portion of the second collecting pipe 11, the communicating pipe 18 is a circular pipe, a third collecting pipe 8 communicated with the two liquid outlet holes 17 is further fixed on the supercooling region 24, the third collecting pipe 8 is circular, a liquid outlet pipe 9 is fixed on the third collecting pipe 8, the liquid outlet pipe 9 is a circular pipe, and a fixing flange 10 is fixed on the side of the liquid outlet pipe 9 away from the third collecting pipe 8. By adopting the design, the liquefied liquid can uniformly enter the two second heat exchange tubes 13, so that the second heat exchange tubes 13 can exchange heat better, and the heat exchange efficiency of the device is improved.

Referring to fig. 1 and 2, the first heat exchange tube 6 is bent and U-shaped at the bent portion, the first heat exchange tube 6 is inclined downward, and the air inlet 15 is higher than the liquid outlet 16. By adopting the design, the condensed and liquefied gas can rapidly enter the first collecting pipe 20, so that the steam can be in full contact with the inner wall of the first heat exchange pipe 6, and the heat exchange efficiency of the heat exchanger is improved. The first fin 1 and the second fin 12 are both spirally arranged and are respectively sleeved on the outer walls of the first heat exchange tube 6 and the second heat exchange tube 13. By adopting the design, the first fin 1 and the second fin 12 can be fully contacted with air, and the heat exchange efficiency of the heat exchanger is improved.

The implementation principle of a partition heat exchanger in the embodiment of the application is as follows: the during operation, with in the steam injection air intake manifold 5, make in the steam injection a plurality of first heat exchange tubes 6, reduce first heat exchange tube 6 temperature through first fin 1, thereby make steam meet cold liquefaction, thereby pour into the feed liquor collection pipe 21 of first collection pipe 20 into by leakage fluid dram 16, in entering flowing back collection pipe 22 behind through orifice plate 23, in pouring liquid into second collection pipe 11 through communicating pipe 18, make the liquid of condensation get into in the second heat exchange tube 13, reduce second heat exchange tube 13 temperature through second fin 12, thereby make liquid reach the effect of subcooling, get into the liquid discharge that accomplishes the heat transfer through fluid dram 9 in the third collection pipe 8 at last. Adopt such design to make the slow entering of liquid in the feed liquor collection house 21 in the flowing back collection house 22 through orifice plate 23 in, can avoid appearing the phenomenon of flash distillation on the one hand, make the liquid after the condensation can carry out the heat transfer steadily, on the other hand can keep the state that contains the condensate liquid in making the feed liquor collection house 21 through orifice plate 23 all the time to avoid in steam directly gets into second heat exchange tube 13, improve the heat transfer efficiency of heat exchanger.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A zoned heat exchanger, its characterized in that: the heat exchanger comprises a heat exchanger frame (2), wherein the heat exchanger frame (2) is divided into a liquefaction area (25) and a supercooling area (24), a plurality of first heat exchange tubes (6) are arranged on the liquefaction area (25), air inlets (15) and liquid discharge ports (16) are formed at two ends of the first heat exchange tubes (6) respectively, an air inlet header pipe (5) communicated with the air inlets (15) is arranged on the heat exchanger frame (2), a first header pipe (20) is further arranged on the heat exchanger frame (2), the first header pipe (20) is divided into a liquid discharge header pipe (22) and a plurality of liquid inlet header pipes (21) communicated with the liquid discharge ports (16), a throttling pore plate (23) is arranged between the liquid discharge header pipe (22) and the liquid inlet header pipe (21), and a second heat exchange tube (13) communicated with the liquid discharge header pipe (22) is arranged on the supercooling area (24), and the outer walls of the first heat exchange tube (6) and the second heat exchange tube (13) are respectively provided with a first fin (1) and a second fin (12).

2. The zoned heat exchanger of claim 1, wherein: the second heat exchange tube (13) is provided with a plurality of, the both ends of second heat exchange tube (13) are formed with feed liquor hole (19) and outage (17) respectively, be provided with on subcooling region (24) with a plurality of second collection pipe (11) of feed liquor hole (19) intercommunication, second collection pipe (11) with flowing back collection pipe (22) intercommunication, still be provided with on subcooling region (24) with a plurality of third collection pipe (8) of outage (17) intercommunication.

3. The zoned heat exchanger according to claim 2, wherein: a communicating pipe (18) is arranged between the second collecting pipe (11) and the liquid discharge collecting pipe (22), the communicating pipe (18) is arranged at the upper part of the second collecting pipe (11), and one end of the second heat exchange pipe (13) close to the liquid inlet hole (19) is arranged at the lower part of the second collecting pipe (11).

4. The zoned heat exchanger of claim 3, wherein: the second heat exchange tube (13) is arranged in an upward inclined mode, and the height of the liquid inlet hole (19) is lower than that of the liquid discharge hole (17).

5. The zoned heat exchanger according to claim 1, wherein: the first heat exchange tube (6) is arranged in a downward inclined mode, and the height of the air inlet (15) is higher than that of the liquid outlet (16).

6. The zoned heat exchanger of claim 1, wherein: the first fin (1) and the second fin (12) are both spiral and are respectively sleeved on the first heat exchange tube (6) and the second heat exchange tube (13).

7. The zoned heat exchanger of claim 1, wherein: and the heat exchanger frame (2) is provided with a fixing plate (7) for fixing the first heat exchange tube (6) and the second heat exchange tube (13).

8. The zoned heat exchanger according to claim 1, wherein: the heat exchanger is characterized in that an air inlet pipe (3) communicated with the air inlet header pipe (5) and a liquid discharge pipe (9) communicated with the third header pipe (8) are respectively arranged on the heat exchanger frame (2), a connecting flange (4) is arranged on the air inlet pipe (3), and a fixing flange (10) is arranged on the liquid discharge pipe (9).