CN218523596U

CN218523596U - Preheater pipeline with heat preservation function

Info

Publication number: CN218523596U
Application number: CN202222764209.8U
Authority: CN
Inventors: 王晓辉; 韩东方
Original assignee: Shandong Xudong Thermal Equipment Co ltd
Current assignee: Shandong Xudong Thermal Equipment Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-02-24
Anticipated expiration: 2032-10-20

Abstract

The utility model relates to a power plant equipment field specifically is a pre-heater pipeline with heat preservation function, including the hot-blast main, the inner wall fixedly connected with heat pipe of hot-blast main. The device increases the area of heat pipe and heat conduction flue gas and surface contact through the conducting strip, then carry the heat of heat conduction flue gas in the insulating tube through the conducting strip, and increase its area with the cold air contact through spiral helicine conducting strip, and make the cold air slow flow at the insulating tube, compared with the prior art, this device increases the time that the cold air flows in the insulating tube, and then guarantee the effect of conducting strip to heat conduction flue gas heat conduction, the heat conduction flue gas blows the flabellum when the inner wall of heat pipe flows, make the flabellum drive the rotatory side friction heat generation with the conducting strip of friction pipe, increase the inside heat conduction flue gas heat of heat pipe, further strengthen the effect of device to the cold air heating.

Description

Preheater pipeline with heat preservation function

Technical Field

The utility model relates to a power plant equipment field specifically is a preheater pipeline with heat preservation function.

Background

The power plant is a factory which converts various primary energy sources stored in the nature into electric energy, and the current power plant has a plurality of power generation ways: in thermal power plants, coal is generally combusted to generate heat energy, and the heat energy is converted into electric energy through a steam turbine, so that the combustion efficiency of the coal directly influences the utilization rate of energy.

The prior patent (publication number: CN 210119137U) discloses an air preheater pipeline, which comprises a hot air pipe, a cold air pipe sleeved outside the hot air pipe, and a first heat-conducting silicon pipe arranged inside the hot air pipe. The inventor finds that the following problems in the prior art are not solved well in the process of realizing the scheme: 1. the device directly conducts heat through first heat conduction silicon pipe, second heat conduction silicon pipe and heat conduction silicon plate, and the device has certain heat conduction effect, nevertheless because the time that cold air flows in the second heat conduction silicon pipe is certain, is difficult to increase the time that cold air and second heat conduction silicon pipe contact, and then is difficult to guarantee the effect of cold air and heat conduction flue gas heat exchange.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a preheater pipeline with heat preservation function to it is certain to provide because the time that the cold air flows in the second heat conduction silicon tube in solving above-mentioned background art, is difficult to increase the time that cold air and second heat conduction silicon tube contacted, and then is difficult to the problem of the effect of guaranteeing cold air and heat conduction flue gas heat exchange.

In order to achieve the above object, the utility model provides a following technical scheme: a pre-heater pipeline with a heat preservation function comprises a hot air pipe, wherein a heat conduction pipe is fixedly connected to the inner wall of the hot air pipe;

the heat-conducting fin is fixedly inserted into the side surface of the heat-conducting pipe and the side surface of the hot air pipe, the heat-insulating pipe is fixedly sleeved on the side surface of the heat-conducting fin, the sealing pipe is fixedly sleeved on the outer side of the heat-insulating pipe, and the heat-insulating pipe is fixedly sleeved on the outer side of the sealing pipe;

the inner wall of the hot air pipe is fixedly connected with a friction piece.

Preferably, the friction piece includes the bearing, the side of bearing and the inner wall fixed connection of heat pipe, the inner wall fixedly connected with bull stick of bearing, the side fixedly connected with flabellum of bull stick, the side fixedly connected with friction pipe of flabellum, the side of friction pipe is contradicted with the side of conducting strip.

Preferably, the side of the bearing is fixedly connected with a connecting rod, and one end of the connecting rod, which is far away from the bearing, is fixedly connected with the inner wall of the heat conducting pipe.

Preferably, the shape of the heat-conducting sheet is a spiral shape.

Preferably, the number of the fan blades is three, and the three fan blades are distributed annularly at equal intervals.

Preferably, the central axis of the rotating rod is coaxial with the central axis of the heat conducting pipe.

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

the utility model discloses in, the device increases heat pipe and heat conduction flue gas and surface contact's area through the conducting strip, then carries the heat of heat conduction flue gas in the insulating tube through the conducting strip, and increases its area with the cold air contact through spiral helicine conducting strip to make the cold air slow flow at the insulating tube, this device increases the time that the cold air flows in the insulating tube for prior art, and then guarantees the effect of conducting strip to heat conduction flue gas heat conduction.

The utility model discloses in, the heat conduction flue gas blows to the flabellum when the inner wall of heat pipe flows for the flabellum drives the rotatory side friction themogenesis with the conducting strip of friction pipe, increases the inside heat conduction flue gas heat of heat pipe, further strengthens the effect of device to the cold air heating.

The utility model discloses in, be connected hot-blast main and insulating tube through spiral helicine conducting strip, increase the intensity that hot-blast main and insulating tube are connected, the device keeps warm through the air of insulating tube and heat insulating tube to the insulating tube inner wall.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a partial three-dimensional structure of the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the friction member of the present invention.

In the figure: 1. a hot air pipe; 2. a heat conduction pipe; 3. a heat conductive sheet; 4. a heat preservation pipe; 5. a sealing tube; 6. a heat insulating pipe; 7. a friction member; 71. a bearing; 72. a rotating rod; 73. a fan blade; 74. rubbing the 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 the staff of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a preheater pipeline with a heat preservation function comprises a hot air pipe 1, wherein the inner wall of the hot air pipe 1 is fixedly connected with a heat conduction pipe 2;

the heat conducting fins 3 are fixedly inserted into the side faces of the heat conducting pipes 2 and the side faces of the hot air pipes 1, the heat preservation pipes 4 are fixedly sleeved on the side faces of the heat conducting fins 3, the sealing pipes 5 are fixedly sleeved on the outer sides of the heat preservation pipes 4, and the heat insulation pipes 6 are fixedly sleeved on the outer sides of the sealing pipes 5;

the inner wall of the hot air pipe 1 is fixedly connected with a friction piece 7.

In this embodiment, as shown in fig. 1, fig. 2, and fig. 3, the friction member 7 includes a bearing 71, a side surface of the bearing 71 is fixedly connected to an inner wall of the heat conducting pipe 2, a rotating rod 72 is fixedly connected to the inner wall of the bearing 71, a side surface of the rotating rod 72 is fixedly connected to a fan blade 73, a side surface of the fan blade 73 is fixedly connected to a friction pipe 74, and a side surface of the friction pipe 74 abuts against a side surface of the heat conducting strip 3. The fan blades 73 are blown by the air flow in the heat conducting pipe 2, so that the fan blades 73 drive the friction pipe 74 to rotate and rub against the side surface of the heat conducting fin 3 to generate heat.

In this embodiment, as shown in fig. 1, 2 and 3, a connecting rod is fixedly connected to a side surface of the bearing 71, and one end of the connecting rod away from the bearing 71 is fixedly connected to the inner wall of the heat pipe 2. The stability of the connection between the bearing 71 and the inner wall of the hot air pipe 1 is ensured through the connecting rod.

In this embodiment, as shown in fig. 1 and 2, the heat-conducting sheet 3 has a spiral shape. The area of contact between the spiral heat conducting strip 3 and hot air is increased, and the heat conducting effect of the heat conducting strip 3 is guaranteed.

In this embodiment, as shown in fig. 3, the number of the fan blades 73 is three, and the three fan blades 73 are distributed in an annular shape at equal intervals. The fan blade 73 rotates to drive the friction pipe 74 to rotate and rub the side surface of the heat conducting fin 3

In the present embodiment, as shown in fig. 1, 2, and 3, the center axis of the rotating rod 72 is coaxial with the center axis of the heat transfer pipe 2.

The utility model discloses a use method and advantage: when the preheater pipeline with the heat preservation function is used, the working process is as follows:

as shown in fig. 1, fig. 2 and fig. 3, a user conveys heat-conducting smoke to the heat-conducting pipe 2, then conveys cold air to the inside of the heat-insulating pipe 4, then when the device conveys the heat-conducting smoke through the heat-conducting pipe 2, the contact area between the heat-conducting pipe 2 and the surface of the heat-conducting smoke is increased through the heat-conducting fins 3, then the heat of the heat-conducting smoke is conveyed into the heat-insulating pipe 4 through the heat-conducting fins 3, the contact area between the heat-conducting smoke and the cold air is increased through the spiral heat-conducting fins 3, the cold air slowly flows in the heat-insulating pipe 4, the flowing time of the cold air in the heat-insulating pipe 4 is increased, and the heat-conducting effect of the heat-conducting smoke by the heat-conducting fins 3 is further ensured;

when the heat conduction flue gas flows on the inner wall of the heat conduction pipe 2, the fan blade 73 is blown, so that the fan blade 73 drives the friction pipe 74 to rotate and rub against the side surface of the heat conduction fin 3 to generate heat, the heat of the heat conduction flue gas in the heat conduction pipe 2 is increased, and the effect of the device on heating cold air is further enhanced;

the device is connected hot-blast main 1 and insulating tube 4 through spiral helicine conducting strip 3, increases the intensity that hot-blast main 1 and insulating tube 4 are connected, and the device keeps warm through insulating tube 4 and heat insulating tube 6 to the air of insulating tube 4 inner wall.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. The skilled worker in this industry should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the preferred embodiments of the present invention, and does not limit the present invention, without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a preheater pipeline with heat preservation function, includes hot-blast main (1), its characterized in that: the inner wall of the hot air pipe (1) is fixedly connected with a heat conduction pipe (2);

the heat-conducting fins (3) are fixedly inserted into the side surfaces of the heat-conducting pipes (2) and the hot air pipes (1), the heat-insulating pipes (4) are fixedly sleeved on the side surfaces of the heat-conducting fins (3), the sealing pipes (5) are fixedly sleeved on the outer sides of the heat-insulating pipes (4), and the heat-insulating pipes (6) are fixedly sleeved on the outer sides of the sealing pipes (5);

the inner wall of the hot air pipe (1) is fixedly connected with a friction piece (7).

2. A preheater tube with a heat insulating function as recited in claim 1, wherein: friction piece (7) include bearing (71), the side of bearing (71) and the inner wall fixed connection of heat pipe (2), the inner wall fixedly connected with bull stick (72) of bearing (71), the side fixedly connected with flabellum (73) of bull stick (72), the side fixedly connected with friction pipe (74) of flabellum (73), the side of friction pipe (74) is contradicted with the side of conducting strip (3).

3. A pre-heater pipe with heat preservation function as claimed in claim 2, wherein: the side of the bearing (71) is fixedly connected with a connecting rod, and one end of the connecting rod, which is far away from the bearing (71), is fixedly connected with the inner wall of the heat conducting pipe (2).

4. A preheater tube with a heat insulating function as recited in claim 1, wherein: the shape of the heat conducting fin (3) is spiral.

5. A pre-heater pipe with heat preservation function as claimed in claim 2, wherein: the number of the fan blades (73) is three, and the three fan blades (73) are distributed annularly at equal intervals.

6. A preheater tube with a heat insulating function as recited in claim 2, wherein: the central axis of the rotating rod (72) is coaxial with the central axis of the heat conduction pipe (2).