CN211146555U

CN211146555U - Split type air preheater

Info

Publication number: CN211146555U
Application number: CN201921828458.0U
Authority: CN
Inventors: 徐强; 季叶明; 王震明
Original assignee: Wuxi Xingchang Thermal Equipment Co ltd
Current assignee: Wuxi Xingchang Thermal Equipment Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-07-31
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a split type air preheater, which comprises a heat transfer box, wherein the left side wall of the heat transfer box is fixedly connected with a smoke inlet, the right side wall of the heat transfer box is fixedly connected with a smoke outlet, the lower surface of the heat transfer box is fixedly connected with a connecting pipe, one end of the connecting pipe far away from the heat transfer box is fixedly connected with a water pump, one end of the water pump far away from the connecting pipe is fixedly connected with a water inlet pipe, one end of the water inlet pipe far away from the water pump is fixedly connected with a heat conduction pipe, the side surface of the heat conduction pipe is fixedly connected with a radiating fin, one end of the heat conduction pipe far away from the water inlet pipe is fixedly connected with a water outlet pipe, one end of the water outlet pipe far away from the heat conduction pipe is fixedly connected with a heat absorption pipe (, the outer part of the, the heat can be transferred, the heat loss is reduced, and the utilization rate of the heat is improved.

Description

Split type air preheater

Technical Field

The utility model relates to a petrochemical equipment field especially relates to a split type air heater.

Background

The air preheater is a heating surface for preheating air before entering the boiler to a certain temperature by smoke in a flue at the tail part of the boiler through internal radiating fins, and is equipment for improving the heat exchange performance of the boiler and reducing energy consumption.

To boiler flue gas waste heat's recycle, reduced the loss of the energy, to present air heater, its mechanism heat exchange efficiency is relatively poor, and the structure is complicated moreover, is unfavorable for the installation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a split type air preheater.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a split type air preheater comprises a heat transfer box, wherein a smoke inlet is fixedly connected to the left side wall of the heat transfer box, a smoke outlet is fixedly connected to the right side wall of the heat transfer box, a connecting pipe is fixedly connected to the lower surface of the heat transfer box, a water pump is fixedly connected to the end, away from the heat transfer box, of the connecting pipe, a water inlet pipe is fixedly connected to the end, away from the connecting pipe, of the water pump, a heat conducting pipe is fixedly connected to the end, away from the water pump, of the water inlet pipe, radiating fins are fixedly connected to the side surface of the heat conducting pipe, a water outlet pipe is fixedly connected to the end, away from the water inlet pipe, of the heat conducting pipe, a heat absorbing pipe is fixedly connected to the end, away from the heat conducting pipe, of the water outlet pipe, a heat conducting box is fixedly connected to the outside of the heat conducting pipe, and the right surface of the heat conduction box is fixedly connected with an air outlet.

As a further description of the above technical solution:

the heat absorption pipe is made of a material with good heat conductivity, and the shape of the heat absorption pipe is a snake shape.

As a further description of the above technical solution:

the number of the radiating fins is multiple, the radiating fins are uniformly distributed on the side surface of the heat conduction pipe, and one end of each radiating fin extends into the heat conduction pipe.

As a further description of the above technical solution:

the end of the heat absorption pipe far away from the water outlet pipe is fixedly connected with the connecting pipe, and the end of the water inlet pipe far away from the water pump extends into the heat conduction box.

As a further description of the above technical solution:

the one end fixedly connected with of heat transfer case is kept away from to the mouth that advances tobacco, the one end fixedly connected with of heat transfer case is kept away from to the mouth that goes out tobacco goes out the tobacco pipe.

As a further description of the above technical solution:

the heat transfer box is characterized in that the number of the heat absorption pipes is multiple, the heat absorption pipes are uniformly distributed in the heat transfer box, and the heat absorption pipes are connected end to end.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this split type air heater adopts water to carry out the heat in the conduction flue gas, makes the heat can transmit, reduces thermal loss, improves its utilization ratio to the heat.

2. Compared with the prior art, the split type air preheater is simple in structure, convenient to install, capable of recycling heat and high in utilization rate.

Drawings

Fig. 1 is a schematic view of an overall structure of a split type air preheater according to the present invention;

fig. 2 is a schematic view of an internal structure of a split type air preheater provided by the present invention;

fig. 3 is a partial view of the heat absorbing pipe of the split air preheater provided by the present invention.

Illustration of the drawings:

1. a heat transfer case; 2. a smoke inlet; 3. a smoke outlet; 4. a connecting pipe; 5. a water pump; 6. a water inlet pipe; 7. a water outlet pipe; 8. a fan inlet; 9. an air inlet pipe; 10. an air inlet; 11. a heat conducting box; 12. an air outlet; 13. a heat conducting pipe; 14. a heat sink; 15. a heat absorbing tube; 16. a smoke inlet pipe; 17. and (4) discharging the smoke tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the utility model provides a split type air heater: the smoke heat exchanger comprises a heat transfer box 1, hot gas in smoke is transferred into a heat absorption pipe 15, the left side wall of the heat transfer box 1 is fixedly connected with a smoke inlet 2, the inlet of the smoke is formed, the right side wall of the heat transfer box 1 is fixedly connected with a smoke outlet 3, the outlet of the smoke is formed, the lower surface of the heat transfer box 1 is fixedly connected with a connecting pipe 4, the connecting pipe 4 is connected with a water pump 5 and the heat absorption pipe 15, one end, far away from the heat transfer box 1, of the connecting pipe 4 is fixedly connected with the water pump 5 to provide power for water circulation, one end, far away from the connecting pipe 4, of the water pump 5 is fixedly connected with a water inlet pipe 6, a water inlet pipeline is formed, one end, far away from the water pump 5, of the water inlet pipe 6 is fixedly connected with a heat conduction pipe 13 to conduct out heat in water, the side surface of the heat conduction pipe 13 is fixedly connected, the outside fixedly connected with heat conduction case 11 of heat conduction pipe 13, the hot-blast transmission, the left side wall fixedly connected with air intake 10 of heat conduction case 11 gets into the cool air, and the one end fixedly connected with air-supply line 9 that the air intake 10 is far away from heat conduction case 11, the pipeline of the air inlet, the one end fixedly connected with fan 8 that air-supply line 9 is far away from air intake 10 provides power for the flow of wind, and the right surface fixedly connected with air outlet 12 of heat conduction case 11.

The material that the heat absorption pipe 15 adopted is the material that the heat conductivity is good, the shape of heat absorption pipe 15 is the snake type, make the heat absorption more thorough, the quantity of fin 14 has a plurality ofly, a plurality of fin 14 evenly distributed are at the side surface of heat pipe 13, make the heat dissipation more quick, the one end of fin 14 extends to the inside of heat pipe 13, the one end and the connecting pipe 4 fixed connection of outlet pipe 7 are kept away from to the heat absorption pipe 15, the one end that water pump 5 was kept away from to inlet tube 6 extends to the inside of heat transfer case 11, the one end fixedly connected with who advances tobacco pipe 16 of smoke inlet 2 kept away from heat transfer case 1, get into the pipeline of flue gas, the one end fixedly connected with that smoke outlet 3 kept away from heat transfer case 1 goes out tobacco pipe 17, the pipeline that the flue gas went out, the total of heat absorption pipe 15 is a plurality of, a plurality of heat absorption pipes 15 evenly distributed are in the inside.

The working principle is as follows: the flue gas enters the heat transfer box 1 through the smoke inlet pipe 16, the hot flue gas passes through the heat absorption pipe 15, heat in the flue gas is transmitted to water in the heat absorption pipe 15, then the residual flue gas is discharged from the smoke outlet pipe 17, the water pump 5 sucks hot water in the heat absorption pipe 15 into the heat conduction box 11, the hot water enters the heat conduction pipe 13, heat in the hot water is dissipated through the heat dissipation fins 14, the cold air is blown into the heat conduction box 11 by the air inlet fan 8, then the hot air is blown out from the air outlet 12, and then the water which is dissipated by the heat is sucked into the heat transfer box 1 again by the water pump 5, so that the heat conduction cycle is completed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A split type air preheater comprises a heat transfer box (1), and is characterized in that: the smoke inlet (2) is fixedly connected to the left side wall of the heat transfer box (1), the smoke outlet (3) is fixedly connected to the right side wall of the heat transfer box (1), the connecting pipe (4) is fixedly connected to the lower surface of the heat transfer box (1), the water pump (5) is fixedly connected to one end, away from the heat transfer box (1), of the connecting pipe (4), the water inlet pipe (6) is fixedly connected to one end, away from the connecting pipe (4), of the water inlet pipe (6), the heat conduction pipe (13) is fixedly connected to one end, away from the water pump (5), of the water inlet pipe (6), the heat dissipation fins (14) are fixedly connected to the side surface of the heat conduction pipe (13), the water outlet pipe (7) is fixedly connected to one end, away from the heat conduction pipe (13), of the water outlet pipe (7) is fixedly connected to the heat absorption pipe (15), and the heat conduction box (, the left side wall fixedly connected with air intake (10) of heat conduction case (11), the one end fixedly connected with air-supply line (9) of heat conduction case (11) is kept away from in air intake (10), the one end fixedly connected with air inlet fan (8) of air intake (10) are kept away from in air-supply line (9), the right fixed surface of heat conduction case (11) is connected with air outlet (12).

2. A split air preheater according to claim 1, wherein: the heat absorption pipe (15) is made of a material with good heat conductivity, and the shape of the heat absorption pipe (15) is a snake shape.

3. A split air preheater according to claim 1, wherein: the number of the radiating fins (14) is multiple, the radiating fins (14) are uniformly distributed on the side surface of the heat conducting pipe (13), and one end of each radiating fin (14) extends into the heat conducting pipe (13).

4. A split air preheater according to claim 1, wherein: one end, far away from the water outlet pipe (7), of the heat absorption pipe (15) is fixedly connected with the connecting pipe (4), and one end, far away from the water pump (5), of the water inlet pipe (6) extends into the heat conduction box (11).

5. A split air preheater according to claim 1, wherein: one end of the smoke inlet (2) far away from the heat transfer box (1) is fixedly connected with a smoke inlet pipe (16), and one end of the smoke outlet (3) far away from the heat transfer box (1) is fixedly connected with a smoke outlet pipe (17).

6. A split air preheater according to claim 1, wherein: the number of the heat absorption pipes (15) is multiple, the heat absorption pipes (15) are uniformly distributed in the heat transfer box (1), and the heat absorption pipes (15) are connected end to end.