CN215892319U

CN215892319U - Steam boiler's afterbody heat absorbing device

Info

Publication number: CN215892319U
Application number: CN202121775322.5U
Authority: CN
Inventors: 程刚; 丁青松; 陈苗; 陈晓波
Original assignee: Zhejiang Tefuweiye Thermal Energy Equipment Co ltd
Current assignee: Zhejiang Tefuweiye Thermal Energy Equipment Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-02-22
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a tail heat absorption device of a steam boiler, which comprises a shell, wherein an air inlet is fixedly arranged at one end of the shell, an air outlet is fixedly arranged at the other end of the shell, a water inlet is formed in the top end of the shell, a water outlet is formed in the bottom end of the shell, a first cold water cavity is fixedly arranged on the inner wall of the shell, a second cold water cavity is arranged in the first cold water cavity, a plurality of connecting pipes are fixedly communicated with the upper part and the lower part of the second cold water cavity, the connecting pipes are fixedly communicated with the first cold water cavity, a plurality of heat conduction pipes are fixedly arranged on the side walls of the first cold water cavity and the second cold water cavity, a stirring mechanism is rotatably arranged on the inner side wall of the shell, a rotating motor is fixedly arranged at the top end of the shell, a rotating shaft is rotatably arranged on the rotating motor, and a rotating gear is fixedly arranged on the rotating shaft. The utility model can effectively improve the heat energy utilization rate of hot gas, accelerate the heating efficiency of the water body and reduce the generation of scale.

Description

Steam boiler's afterbody heat absorbing device

Technical Field

The utility model relates to the technical field of steam boilers, in particular to a tail heat absorption device of a steam boiler.

Background

Steam boiler is when using, and the afterbody of boiler also possesses partial heat, and in order to avoid the heat loss waste of afterbody, all can set up heat absorbing device at steam boiler afterbody and absorb heat, carry out thermal absorption and utilize, current heat absorbing device is when using, passes through the heat pipe mostly, is connected heat absorption cavity and water tank, with the heat of afterbody direction to cold water in, heat cold water through the heat, utilize hot water again.

Chinese patent CN212511093U discloses a tail heat absorption device of a steam boiler, which guides hot air entering an air inlet through a guide plate, so that the hot air can be uniformly dispersed in a heat absorption cavity, and heat can be transferred to and conducted to the interiors of a first cold water cavity and a second cold water cavity under the guide of a heat conduction pipe, so that the hot air is more fully contacted with the heat conduction pipe, the problem of incomplete heat conversion of the existing heat absorption device in use is solved, and the heat absorption effect of the heat absorption device is improved; the problem that heat is easily dissipated at the joint of the existing heat absorption device in use is solved, the sealing performance of the joint of the heat absorption device is improved, but the device also has the following defects while solving the problem:

1. the heat pipes are connected with the first secondary and secondary cold water cavities in a dispersed vertical state, and the heat transmission is maximized due to the undersize contact surface and the shape of the heat pipes, so that the heat utilization is influenced.

2. The deflector of its setting is owing to do not consider that the heat is stocked up easily, then the lower half of first cold water cavity then is difficult to by the total heating for the heat utilization is incomplete, and can lead to cold water heat time overlength, influences efficiency, and because the water continuously heats in the cold water cavity and produces the incrustation scale easily, is difficult for cleaing away, influences the heating efficiency of water after long-time deposit easily.

3. The air outlet of the device is easy to cause a large amount of hot air which is not completely utilized to escape because no blocking is arranged, and cold air can directly enter from the outside, so that cold water in the first secondary and secondary cold water cavity part close to the air outlet is not easy to rapidly and completely heat up to available temperature.

To this end, we propose an aft heat absorber for a steam boiler to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides an end heat absorption device of a steam boiler.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a steam boiler's afterbody heat sink, includes the casing, the fixed air inlet that is equipped with of casing one end, the fixed gas outlet that is equipped with of the casing other end, the water inlet has been seted up on the casing top, the delivery port has been seted up to the casing bottom, the last fixed first cold water chamber that is equipped with of shells inner wall, first cold water intracavity portion is equipped with second cold water chamber, second cold water chamber all fixes from top to bottom and link up and is equipped with a plurality of connecting pipes, and is a plurality of the connecting pipe all with the fixed through connection in first cold water chamber, all fix on first cold water chamber and the second cold water chamber lateral wall and be equipped with a plurality of heat pipes, it is equipped with rabbling mechanism to rotate on the shells inner wall, the fixed rotation motor that is equipped with in casing top rotates, it is provided with the axis of rotation to rotate on the motor, the fixed running gear that is equipped with in the axis of rotation.

Preferably, an air guide sheet is arranged in the air inlet, and a plurality of choke sheets are arranged in the air outlet.

Preferably, the stirring mechanism comprises a rotating ring, a plurality of rotating teeth are fixedly arranged on the outer side surface of the rotating ring, the rotating teeth are meshed with the rotating gear, and a plurality of rotating pieces are fixedly arranged on the rotating ring.

Preferably, a plurality of the rotating pieces are in the shape of turbine blades.

Preferably, a plurality of the heat pipes all are the U font, and run through fixed being equipped with the heat pipe circle on a plurality of heat pipes in first cold water chamber.

Preferably, both sides of the second cold water cavity are streamlined dome-shaped.

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

the heat in the shell can be firstly transferred to the lower part through the air guide sheet arranged in the air inlet, and then transferred to the upper part through the self heat effect, so that the hot air can be fully utilized, the difference of the upper water temperature and the lower water temperature of the first secondary cold water cavity is not too much, and the heat transfer efficiency is improved. Can make heat conduction efficiency promote by a wide margin through the U type heat pipe that sets up again, and can make the temperature difference of upper and lower end water body keep at less value through the heat conduction pipe circle for heating efficiency is higher, makes the water can be the heliciform stirring through the rabbling mechanism that sets up, thereby can't produce the first secondary and secondary cold water intracavity surface of incrustation scale absorption, also can let the temperature of first secondary and secondary cold water intracavity unify, does benefit to upper and lower water body and heaies up simultaneously.

Drawings

FIG. 1 is a perspective view of an aft heat absorber of a steam boiler in accordance with the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic structural view of a stirring mechanism;

FIG. 4 is a schematic view of the overall configuration of an aft heat absorber of a steam boiler in accordance with the present invention.

In the figure: the device comprises a shell 1, an air inlet 2, an air outlet 3, a water inlet 4, a water outlet 5, a first cold water cavity 6, a second cold water cavity 7, a connecting pipe 8, a heat conducting pipe 9, a stirring mechanism 10, a rotating motor 11, an air guiding sheet 12, a wind blocking sheet 13, a rotating ring 14, a rotating sheet 15, a heat conducting pipe ring 16, a rotating shaft 17, a rotating gear 18 and a motor cavity 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, a tail heat absorption device of a steam boiler comprises a casing 1, the casing is cylindrical, one end of the casing 1 is fixedly provided with an air inlet 2 for allowing hot air to enter the casing for recycling, the other end of the casing 1 is fixedly provided with an air outlet 3 for discharging the used hot air out of the casing, the top end of the casing 1 is provided with a water inlet 4 for adding cold water to be heated, the bottom end of the casing 1 is provided with a water outlet 5 for discharging and utilizing the heated hot water, the inner wall of the casing 1 is fixedly provided with a first cold water cavity 6, the first cold water cavity 6 is hollow and cylindrical, so that the hollow interior of the first cold water cavity 6 is uniformly heated, the hollow interior of the first cold water cavity 6 is provided with a second cold water cavity 7, the second cold water cavity 7 is cylindrical, so that the periphery of the first cold water cavity is uniformly heated, a plurality of connecting pipes 8 are fixedly communicated from top to bottom of the second cold water cavity 7 and are communicated with the first cold water cavity 6 and the second cold water cavity 7, so that the heated water body can be heated in series, and a cold and hot circulation is carried out, a plurality of connecting pipes 8 are fixedly communicated with a first cold water cavity 6, a plurality of heat conduction pipes 9 are fixedly arranged on the side walls of the first cold water cavity 6 and a second cold water cavity 7 and used for absorbing heat so as to heat a first secondary cold water cavity, a stirring mechanism 10 is rotatably arranged on the inner side wall of a shell 1 and used for stirring the water body in the first secondary cold water cavity, so that the water body rotates spirally, scale can not be generated to adsorb the inner surface of the first secondary cold water cavity, a motor cavity 19 is fixedly arranged at the top end of the shell 1 and used for protecting a built-in mechanism, a rotating motor 11 is fixedly arranged at the top end of the shell 1, the rear end of the motor cavity 19 is fixedly connected with the rotating motor 11, a rotating shaft 17 is rotatably arranged on the rotating motor 11, the rotating shaft 17 penetrates through the motor cavity 19 and is rotatably connected with the motor cavity 19, and a rotating gear 18 is fixedly arranged on the rotating shaft 17, for driving the stirring mechanism 10 to rotate.

Be provided with air guide plate 12 in the air inlet 2, air guide plate 12 direction is downward, is used for the preferential lower part of discharging of steam that gets into and goes into, because the heat effect can upwards climb to make steam preferentially heat the lower part position, be provided with a plurality of choke pieces 13 in the gas outlet 3, a plurality of choke pieces 13 are cyclic annular, and inside opening is the biggest, and is more less to the outside, thereby can make the heat after utilizing easily discharge, and can not make outside cold wind pour into casing 1 easily in, influence the heating effect.

Rabbling mechanism 10 includes

swivel ring

14, 1 inside annular groove that is equipped with of casing, swivel ring 14 rotates with annular groove to be connected, 1 top of casing is equipped with the opening, the fixed a plurality of rotating teeth that are equipped with of 14 lateral surfaces of swivel ring, a plurality of rotating teeth are connected with the running gear meshing, the fixed a plurality of rotor plates 15 that are equipped with on the swivel ring 14, be used for rotating the stirring to the inhomogeneous water of being heated, it is more even to make cold hot water be heated in the water, and make the water be the heliciform stirring and rotate, thereby make the incrustation scale of production in the water be difficult for adhering to on first cold water chamber 6 and second cold water chamber 7 inner walls, influence subsequent heating efficiency.

The rotating pieces 15 are turbine blades and used for enabling the water body to rotate spirally when the water body is stirred, so that the scale cannot be adsorbed on the inner surfaces of the first cold water cavity 6 and the second cold water cavity 7.

A plurality of heat pipes 9 all are the U font, have increased and have been heated and heat conduction area for the heating efficiency of water is higher, and run through fixed heat pipe circle 16 that is equipped with on a plurality of heat pipes 9 of first cold water chamber 6, can be with the upper and lower temperature rate of heating of temperature trend for unanimity in first cold water chamber 6, improve heat utilization rate.

Both sides of the second cold water cavity 7 are in a streamlined dome shape, so that hot air can be better diffused to the periphery after entering the second cold water cavity, and the heating effect can not be influenced by the blocking of the front end.

The working steps of the tail heat absorption device of the steam boiler are as follows:

pass through steam in the leading-in casing 1 of air inlet 2, and through the air guide piece 12 of setting in air inlet 2, make steam get into downwards, begin to heat from the lower part, the temperature tends to unanimity about the heat conduction of a plurality of heat pipes 9 of rethread and heat pipe circle 16 makes, the rotation of rethread rotation motor 11 drives rabbling mechanism 10 and rotates the stirring, make whole water be the heliciform stirring, the back steam of finishing of heating is discharged from gas outlet 3, the water that finishes of heating is from delivery port 5 exhaust utilization, new cold water is added to rethread water inlet 4.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A tail heat absorption device of a steam boiler comprises a shell (1) and is characterized in that one end of the shell (1) is fixedly provided with an air inlet (2), the other end of the shell (1) is fixedly provided with an air outlet (3), the top end of the shell (1) is provided with a water inlet (4), the bottom end of the shell (1) is provided with a water outlet (5), the inner wall of the shell (1) is fixedly provided with a first cold water cavity (6), a second cold water cavity (7) is arranged inside the first cold water cavity (6), a plurality of connecting pipes (8) are fixedly communicated with the second cold water cavity (7) from top to bottom, the connecting pipes (8) are fixedly communicated with the first cold water cavity (6), the side walls of the first cold water cavity (6) and the second cold water cavity (7) are respectively fixedly provided with a plurality of heat conduction pipes (9), and a stirring mechanism (10) is rotatably arranged on the inner side wall of the shell (1), the top end of the shell (1) is fixedly provided with a rotating motor (11), the rotating motor (11) is rotatably provided with a rotating shaft (17), and the rotating shaft (17) is fixedly provided with a rotating gear (18).

2. A steam boiler tail heat absorber according to claim 1, wherein the air inlet (2) is internally provided with an air guide plate (12), and the air outlet (3) is internally provided with a plurality of choke plates (13).

3. A steam boiler tail heat absorbing device according to claim 1, characterized in that the stirring mechanism (10) comprises a rotating ring (14), a plurality of rotating teeth are fixedly arranged on the outer side of the rotating ring (14), a plurality of rotating teeth are meshed with a rotating gear, and a plurality of rotating sheets (15) are fixedly arranged on the rotating ring (14).

4. A steam boiler tail heat absorber according to claim 3, wherein a plurality of the rotating sheets (15) are turbine blade-shaped.

5. A steam boiler tail heat absorption device according to claim 1, characterized in that, a plurality of heat conduction pipes (9) are all U-shaped, and a plurality of heat conduction pipe rings (16) are fixed on the plurality of heat conduction pipes (9) penetrating the first cold water chamber (6).

6. A steam boiler aft heat absorber according to claim 1, c h a r a c t e r i z e d in that the second cold water chamber (7) is streamlined dome shaped on both sides.