CN209782689U

CN209782689U - Power plant boiler waste heat recovery utilizes device

Info

Publication number: CN209782689U
Application number: CN201920363075.4U
Authority: CN
Inventors: 王晓杰
Original assignee: XILINGOL VOCATIONAL COLLEGE
Current assignee: XILINGOL VOCATIONAL COLLEGE
Priority date: 2019-03-21
Filing date: 2019-03-21
Publication date: 2019-12-13
Anticipated expiration: 2029-03-21

Abstract

The utility model discloses a power boiler waste heat recovery utilizes device, including the collection box, the sleeve pipe is installed to the bottom of collection box, flexible pipe is installed to the sheathed tube bottom, the callus on the sole is installed to the bottom of flexible pipe, the surface nestification is provided with the spring, controller and draught fan are installed to one side of collection box, the draught fan embedding sets up in the heat extraction pipe of collection box side, the heat pipe exit tube is installed to the bottom of heat extraction pipe, the toper pipe is installed to the opposite face of draught fan, toper pipe and collection box conduction welding, the internally mounted of toper pipe has the filter screen, the heat pipe is installed to one side of filter screen and is advanced the pipe, the internally mounted of. The utility model discloses a set up draught fan, fin, honeycomb duct and heat pipe, it is single to boiler waste heat recovery mode to have solved traditional recycle device, still has a large amount of heat losses after retrieving, to the poor problem of boiler waste heat utilization effect.

Description

Power plant boiler waste heat recovery utilizes device

Technical Field

The utility model relates to a boiler waste heat recovery technical field specifically is a power plant's boiler waste heat recovery utilizes device.

Background

The recycling device is a device for recycling the waste heat of a boiler in a power plant, the maximum heat loss of a coal-fired power plant is the heat loss of exhaust smoke of the boiler, the temperature of the hot flue gas exhausted by a chimney after the coal and air entering the boiler are subjected to heat exchange through various heat exchangers at the rear part of the boiler is as high as about 100 ℃, the amount of the hot flue gas exhausted by the boiler generally reaches 80-100 ten thousand cubic meters per hour, and the recycling device is one of main reasons for low heat utilization efficiency of the boiler in the power plant, so that the recycling device is required to be used for improving the heat utilization efficiency of the boiler.

however, the prior art has the following defects:

1. The traditional recycling device has a single recycling mode for the waste heat of the boiler, a large amount of heat is lost after recycling, and the effect of recycling the waste heat of the boiler is poor;

2. Boiler steam does not have filtration before getting into the recycle device, and it is serious to lead to the inside dust of recycle device to pile up easily after long-term the use, needs the staff to wash, aggravates staff's work burden, and recycle device's damping performance is poor, and life is short.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a power boiler waste heat recovery utilizes device has solved traditional recycle device and has had a large amount of heat losses to boiler waste heat recovery mode singleness after retrieving, to the poor problem of boiler waste heat utilization effect.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a power boiler waste heat recovery utilizes device, including the collection box, the sleeve pipe is installed to the bottom of collection box, flexible pipe is installed to sheathed tube bottom, the callus on the sole is installed to the bottom of flexible pipe, the nested spring that is provided with of surface, controller and draught fan are installed to one side of collection box, the draught fan embedding sets up in the exhaust pipe of collection box side, the heat pipe exit tube is installed to the bottom of exhaust pipe, the toper pipe is installed to the opposite face of draught fan, toper pipe and collection box conduction welding, the internally mounted of toper pipe has the filter screen, the heat pipe is installed to one side of filter screen and is advanced the pipe, the internally mounted of collection box has the honeycomb duct, the honeycomb duct advances the pipe is installed at the top of honeycomb duct, the honeycomb duct exit tube is installed to the.

Preferably, the top end of the telescopic pipe is embedded in the sleeve and in clearance fit with the inner wall of the sleeve, and the bottom end of the telescopic pipe is welded with the foot pad.

Preferably, the honeycomb ducts are distributed in a row, and the honeycomb duct inlet pipe and the honeycomb duct outlet pipe are communicated with the honeycomb duct.

preferably, the honeycomb duct embedding sets up in the heat pipe, and honeycomb duct advances the pipe and manages with honeycomb duct exit tube and link up the inner wall of heat pipe to with the inner wall interference fit of heat pipe.

Preferably, be arranged between the heat pipe and distribute, and heat pipe advances pipe and heat pipe exit tube and all switches on with the heat pipe.

Preferably, the conical pipe is in conduction welding with the recovery box, and the filter screen is embedded in the conical pipe.

(III) advantageous effects

The utility model provides a power plant's boiler waste heat recovery utilizes device possesses following beneficial effect:

(1) The utility model solves the problems that the traditional recycling device has single recycling mode for the waste heat of the boiler and still has a large amount of heat loss after recycling by arranging the draught fan, the fins, the flow guide pipe and the heat conduction pipe, the problem of poor effect of utilizing the waste heat of the boiler, when the boiler discharges the waste heat in the working process of the recycling device, hot gas respectively enters the recovery tank and the heat pipe inlet pipe, the hot gas is transmitted into the heat pipe by the heat pipe inlet pipe, the water body flows in the flow guide pipe, the heat of the hot gas in the heat pipe is transmitted to the water body by the fins, the water body is heated, the induced draft fan works to pull the hot gas on the left side of the recovery box to move to the right side, can do the heat preservation to the inside water of honeycomb duct and handle, the recycle device adopts the outside and inside mode of recycle boiler waste heat simultaneously, has improved recycle device's heat recovery efficiency effectively.

(2) the utility model discloses a set up the filter screen, the sleeve pipe, spring and flexible pipe, it does not have filtration before boiler steam gets into the recycle device to have solved, it is serious to lead to the inside dust of recycle device to pile up after long-term the use easily, need the staff to wash, aggravate staff's work burden, and recycle device's damping performance is poor, the short problem of life, when boiler work discharge waste heat, steam enters into the inside of toper pipe and can filters through the filter screen, produce weight when collection box inserts water and steam, the sleeve pipe pushes down the spring, the spring can be shock attenuation processing for the collection box through the elasticity of self, the recycle device long service life who has filtration and shock-absorbing function, alleviate staff's work burden effectively.

Drawings

Fig. 1 is an overall longitudinal sectional view of the present invention;

FIG. 2 is a transverse sectional view of the recycling bin of the present invention;

Fig. 3 is a schematic view of the partial structure of the flow guide pipe and the heat conduction pipe of the present invention.

The reference numbers in the figures are: 1. a controller; 2. an induced draft fan; 3. a heat exhaust pipe; 4. the heat conduction pipe exits the pipe; 5. the heat conduction pipe enters the pipe; 6. a filter screen; 7. a tapered tube; 8. discharging a pipe from the draft tube; 9. a sleeve; 10. a spring; 11. a telescopic pipe; 12. a foot pad; 13. a recycling bin; 14. feeding a flow guide pipe; 15. a fin; 16. a flow guide pipe; 17. a heat conducting pipe.

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.

Referring to fig. 1-3, the present invention provides an embodiment: a power plant boiler waste heat recycling device comprises a recycling box 13, a sleeve 9 is installed at the bottom of the recycling box 13, a telescopic pipe 11 is installed at the bottom of the sleeve 9, the top end of the telescopic pipe 11 is embedded in the sleeve 9 and is in clearance fit with the inner wall of the sleeve 9, the bottom end of the telescopic pipe 11 is welded with a foot pad 12, the foot pad 12 is installed at the bottom of the telescopic pipe 11, a spring 10 is nested on the outer surface of the telescopic pipe 11, a controller 1 and an induced draft fan 2 are installed at one side of the recycling box 13, the induced draft fan 2 is embedded in a heat exhaust pipe 3 arranged at the side of the recycling box 13, an outlet pipe heat conduction pipe 4 is installed at the bottom of the heat exhaust pipe 3, when the boiler works to exhaust waste heat, hot gas enters the interior of a conical pipe 7 and can be filtered by a filter screen 6, weight is generated when the recycling box 13 is connected with water, the recycling device with filtering and shock-absorbing functions has long service life, a conical tube 7 is installed on the opposite surface of an induced draft fan 2, the conical tube 7 is communicated and welded with a recycling box 13, a filter screen 6 is embedded in the conical tube 7, the conical tube 7 is communicated and welded with the recycling box 13, the filter screen 6 is installed inside the conical tube 7, a heat conduction pipe inlet tube 5 is installed on one side of the filter screen 6, guide pipes 16 are installed inside the recycling box 13, the guide pipes 16 are distributed in a arrayed manner, the guide pipe inlet tube 14 and the guide pipe outlet tube 8 are both communicated with the guide pipe 16, the guide pipe inlet tube 14 is installed on the top of the guide pipe 16, the guide pipe outlet tube 8 is installed on the bottom of the guide pipe 16, fins 15 are embedded in the side surface of the guide pipe 16, heat conduction pipes 17 are installed on the side surface of the guide pipe 16, the guide, and with the inner wall interference fit of heat pipe 17, be the range distribution between the heat pipe 17, and the heat pipe advances pipe 5 and heat pipe exit tube 4 and all switches on with heat pipe 17, draught fan 2 and controller 1 electric connection, the utility model discloses well draught fan 2 is GY4-73 draught fan and MAM-330 controller respectively with controller 1's model, belongs to prior art.

When the recycling device is used, the recycling box 13 is horizontally placed on the ground through the foot pads 12, then the recycling box 13 is communicated with a boiler through the conical tube 7, then the recycling box 13 is connected into a water body through the flow guide tube inlet tube 14, after the recycling is completed, a circuit is connected for the controller 1, the recycling device starts to work, in the working process, a worker controls the draught fan 2 to work through the controller 1, when waste heat is discharged in the working process of the boiler, hot air enters the conical tube 7, is filtered through the filter screen 6 and then respectively enters the recycling box 13 and the heat guide tube inlet tube 5, the hot air is transmitted into the heat guide tube 17 through the heat guide tube inlet tube 5, the water body flows in the flow guide tube 16, the heat of the hot air in the heat guide tube 17 is transmitted to the water body through the fins 15 to heat the water body, the water body is heated, the draught fan 2 works, the hot air, weight is generated when the recycling tank 13 is connected into a water body and hot air, the sleeve 9 presses the spring 10 downwards, the spring 10 can perform damping treatment on the recycling tank 13 through elasticity of the spring 10, and the hot air after waste heat recovery is discharged through the heat discharge pipe 3 and the heat guide pipe outlet pipe 4 respectively.

To sum up can, the utility model discloses a set up draught fan 2, fin 15, honeycomb duct 16 and heat pipe 17, it is single to boiler waste heat recovery mode to have solved traditional recycle device, still has a large amount of heat losses after retrieving, to the poor problem of boiler waste heat utilization effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a power plant's boiler waste heat recovery utilizes device, includes collection box (13), its characterized in that: the heat pipe heat recovery device comprises a recovery box (13), a sleeve (9) is installed at the bottom of the recovery box (13), a telescopic pipe (11) is installed at the bottom of the sleeve (9), a foot pad (12) is installed at the bottom of the telescopic pipe (11), a spring (10) is arranged on the outer surface in a nested mode, a controller (1) and an induced draft fan (2) are installed on one side of the recovery box (13), the induced draft fan (2) is embedded into a heat exhaust pipe (3) arranged on the side face of the recovery box (13), a heat pipe outlet pipe (4) is installed at the bottom of the heat exhaust pipe (3), a conical pipe (7) is installed on the opposite face of the induced draft fan (2), the conical pipe (7) is in conduction welding with the recovery box (13), a filter screen (6) is installed inside the conical pipe (7), a heat pipe inlet pipe (5) is installed on one side, a guide pipe outlet pipe (8) is installed at the bottom, fins (15) are embedded into the side surface of the guide pipe (16), a heat conduction pipe (17) is installed on the side surface of the guide pipe (16), and the induced draft fan (2) is electrically connected with the controller (1).

2. The power plant boiler waste heat recovery device of claim 1, characterized in that: the top end of the telescopic pipe (11) is embedded in the sleeve (9) and is in clearance fit with the inner wall of the sleeve (9), and the bottom end of the telescopic pipe (11) is welded with the foot pad (12).

3. The power plant boiler waste heat recovery device of claim 1, characterized in that: the draft tubes (16) are distributed in a row, and the draft tube inlet pipe (14) and the draft tube outlet pipe (8) are communicated with the draft tube (16).

4. The power plant boiler waste heat recovery device of claim 1, characterized in that: the guide pipe (16) is embedded in the heat conduction pipe (17), and the guide pipe inlet pipe (14) and the guide pipe outlet pipe (8) penetrate through the inner wall of the heat conduction pipe (17) and are in interference fit with the inner wall of the heat conduction pipe (17).

5. The power plant boiler waste heat recovery device of claim 1, characterized in that: the heat conduction pipes (17) are distributed in a distributed manner, and the heat conduction pipe inlet pipe (5) and the heat conduction pipe outlet pipe (4) are communicated with the heat conduction pipes (17).

6. The power plant boiler waste heat recovery device of claim 1, characterized in that: the conical pipe (7) is communicated with the recovery box (13) and is connected with the recovery box in a welding mode, and the filter screen (6) is embedded in the conical pipe (7).