CN215808421U

CN215808421U - Boiler flue gas waste heat energy-saving device of thermal power plant

Info

Publication number: CN215808421U
Application number: CN202122067785.2U
Authority: CN
Inventors: 何鑫; 孙少伟
Original assignee: Linhe Thermal Power Plant of Northern United Power Co Ltd
Current assignee: Linhe Thermal Power Plant of Northern United Power Co Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-02-11
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a boiler flue gas waste heat energy-saving device of a thermal power plant, which relates to the technical field of flue gas treatment and comprises an energy-saving box, wherein a collecting box is arranged inside the energy-saving box, two second filter screens are arranged inside the collecting box, limiting grooves are formed in the outer sides of the second filter screens, a second telescopic groove is formed inside the collecting box, a fixing groove is formed in the inner part of the collecting box and positioned at the top of the second telescopic groove, and the energy-saving device has the beneficial effects that: adsorb flexible piece through utilizing the electro-magnet, compress the expanding spring in the flexible piece outside simultaneously, can take the stopper out to the inside of spacing groove from this, remove the spacing to the second filter screen, then can take the second filter screen out from the inside of collecting box, thereby accomplish the change and the dismantlement to the second filter screen, utilize the second filter screen to filter the granule that can utilize in the flue gas simultaneously, make it drop to the inside completion of collecting box and collect, certain resource has been saved, the work efficiency is improved.

Description

Boiler flue gas waste heat energy-saving device of thermal power plant

Technical Field

The utility model relates to the technical field of flue gas treatment, in particular to a boiler flue gas waste heat energy-saving device for a thermal power plant.

Background

A thermal power plant, which is called a thermal power plant for short, is a plant for producing electric energy by using combustible materials as fuel. The basic production process is as follows: the fuel heats water to generate steam during combustion, chemical energy of the fuel is converted into heat energy, the steam pressure drives a steam turbine to rotate, the heat energy is converted into mechanical energy, then the steam turbine drives a generator to rotate, and the mechanical energy is converted into electric energy. They generate electricity by taking advantage of the pressure drop during the conversion of high temperature, high pressure steam or gas through a turbine to low pressure air or condensate.

Present thermal power plant is when generating electricity, use coal as fuel burning mostly, but the in-process of coal burning has a large amount of heats to be lost usually, so we need reduce the thermal loss of coal when burning as far as possible, carry out utilization once more to the flue gas heat that produces in the boiler, and there are many particulate matters that can the reutilization inside the flue gas, all waste along with the emission of flue gas and fallen, certain resource has been wasted, and current flue gas processing apparatus is to the change of filter screen and trouble, certain work efficiency has been reduced, the practicality is relatively poor, for this reason we have proposed a thermal power plant boiler flue gas waste heat economizer.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides an energy-saving device for the waste heat of the flue gas of the boiler of the thermal power plant, which solves the problems in the background technology.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a boiler flue gas waste heat economizer of thermal power plant, includes energy-conserving case, the inside of energy-conserving case is provided with the collecting box, the inside of collecting box is provided with two second filter screens, the spacing groove has been seted up in the outside of second filter screen, the flexible groove of second has been seted up to the inside of collecting box, the fixed slot has been seted up to the inside of collecting box and the top that is located the flexible groove of second, the inside fixed mounting in the flexible groove of second has expanding spring, the inside in the flexible groove of second is provided with flexible piece, the bottom fixed mounting of flexible piece has the stopper, spacing groove and stopper looks adaptation.

Preferably, an input port is formed in one side of the collecting box, a cover plate is fixedly mounted at the top of the collecting box, two clamping grooves are formed in the collecting box, the second filter screen is matched with the clamping grooves, and two first telescopic grooves are formed in the collecting box.

Preferably, an electromagnet is fixedly installed inside the fixing groove and is connected with the telescopic block in a magnetic manner.

Preferably, two partition plates are fixedly mounted inside the energy-saving box, a second heat exchange pipeline is fixedly mounted inside the energy-saving box, a first heat exchange pipeline is fixedly mounted inside the energy-saving box, and one end of the first heat exchange pipeline is fixedly connected with one end of the second heat exchange pipeline.

Preferably, the inside fixed mounting of energy-saving box has the second water pump, the inside of energy-saving box and the below fixed mounting that is located the second water pump have first water pump, the equal fixed mounting of output of first water pump and second water pump has the connecting pipe, two the connecting pipe all runs through another the baffle extends to one side of baffle.

Preferably, the inside fixed mounting of energy-saving box has the pipeline of giving vent to anger, the inside fixed mounting of the pipeline of giving vent to anger has first filter screen, the pipeline of giving vent to anger runs through energy-saving box and extends to one side of energy-saving box.

Preferably, a water inlet is formed in the top of the energy-saving box, an input pipeline is fixedly mounted on one side of the energy-saving box, and the input pipeline penetrates through the energy-saving box and extends into the energy-saving box.

The utility model provides a boiler flue gas waste heat energy-saving device for a thermal power plant, which has the following beneficial effects:

1. this boiler flue gas waste heat economizer of thermal power plant, adsorb flexible piece through utilizing the electro-magnet, simultaneously compress the expanding spring in the flexible piece outside, can take the stopper out the inside of spacing groove from this, remove the spacing to the second filter screen, then can take the second filter screen out from the inside of collecting box, thereby accomplish the change and the dismantlement to the second filter screen, utilize the second filter screen to filter the granule that can utilize in the flue gas simultaneously, make its inside completion collection that drops to the collecting box, certain resource has been saved, and the work efficiency is improved.

2. This boiler flue gas waste heat economizer of thermal power plant can pour into water into the inside of energy-saving box through utilizing the water inlet, then utilizes first water pump can pour into water into the outside of second heat transfer pipeline, cools down the heat transfer to the inside flue gas of second heat transfer pipeline, and the back is accomplished in the heat transfer, can retrieve water through utilizing the second water pump to accomplish the recycle work to the flue gas waste heat, improved certain practicality.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an external view of the collection box of the present invention;

FIG. 3 is an enlarged view of the utility model at A in FIG. 1.

In the figure: 1. an energy-saving box; 2. a collection box; 3. an input port; 4. an input pipe; 5. a partition plate; 6. a first heat exchange conduit; 7. an air outlet pipe; 8. a connecting pipe; 9. a first filter screen; 10. a first water pump; 11. a second water pump; 12. a water inlet; 13. a second heat exchange conduit; 14. a clamping groove; 15. a cover plate; 16. a second filter screen; 17. a telescopic block; 18. a first telescopic slot; 19. a limiting groove; 20. a limiting block; 21. a tension spring; 22. a second telescopic slot; 23. fixing grooves; 24. an electromagnet.

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 3, the present invention provides a technical solution: an energy-saving device for boiler flue gas waste heat of a thermal power plant comprises an energy-saving box 1, wherein a collecting box 2 capable of storing particles is arranged inside the energy-saving box 1, two second filter screens 16 capable of filtering the particles are arranged inside the collecting box 2, a limiting groove 19 is formed in the outer side of each second filter screen 16, a second telescopic groove 22 is formed in the collecting box 2, a fixing groove 23 is formed in the inner part of the collecting box 2 and positioned at the top of each second telescopic groove 22, a telescopic spring 21 capable of driving each telescopic block 17 to reset is fixedly arranged inside each second telescopic groove 22, each telescopic block 17 is arranged inside each second telescopic groove 22, a limiting block 20 is fixedly arranged at the bottom of each telescopic block 17, the limiting grooves 19 are matched with the limiting blocks 20, an input port 3 is formed in one side of the collecting box 2, a cover plate 15 is fixedly arranged at the top of the collecting box 2, two clamping grooves 14 capable of fixing the second filter screens 16 are formed in the collecting box 2, the second filter screen 16 is matched with the clamping groove 14, two first telescopic grooves 18 are formed in the collecting box 2, an electromagnet 24 is fixedly arranged in a fixed groove 23, the electromagnet 24 is in magnetic connection with the telescopic block 17, the telescopic block 17 is adsorbed by the electromagnet 24, and a telescopic spring 21 on the outer side of the telescopic block 17 is compressed, so that the limiting block 20 can be pulled out of the limiting groove 19 to relieve the limitation on the second filter screen 16, then the second filter screen 16 can be pulled out of the collecting box 2 to complete the replacement and disassembly of the second filter screen 16, meanwhile, particles which can be utilized in smoke can be filtered by the second filter screen 16, the particles fall into the collecting box 2 to complete the collection, certain resources are saved, two partition plates 5 are fixedly arranged in the energy-saving box 1, a second heat exchange pipeline 13 is fixedly arranged in the energy-saving box 1, a first heat exchange pipeline 6 is fixedly arranged inside the energy-saving box 1, one end of the first heat exchange pipeline 6 is fixedly connected with one end of a second heat exchange pipeline 13, a second water pump 11 is fixedly arranged inside the energy-saving box 1, a first water pump 10 is fixedly arranged inside the energy-saving box 1 and below the second water pump 11, connecting pipes 8 are fixedly arranged at the output ends of the first water pump 10 and the second water pump 11, the two connecting pipes 8 penetrate through the other partition plate 5 and extend to one side of the partition plate 5, water can be injected into the energy-saving box 1 by utilizing a water inlet 12, then the first water pump 10 can be utilized to inject water into the outer side of the second heat exchange pipeline 13, the flue gas inside the second heat exchange pipeline 13 is cooled for heat exchange, after the heat exchange is completed, the water can be recovered by utilizing the second water pump 11, thereby completing the work of recovering the waste heat of the flue gas, improved certain practicality, the inside fixed mounting of energy-saving box 1 has pipeline 7 of giving vent to anger, the inside fixed mounting of pipeline 7 of giving vent to anger has first filter screen 9, pipeline 7 of giving vent to anger runs through energy-saving box 1 and extends to one side of energy-saving box 1, water inlet 12 has been seted up at the top of energy-saving box 1, one side fixed mounting of energy-saving box 1 has input pipeline 4, input pipeline 4 runs through energy-saving box 1 and extends to the inside of energy-saving box 1, the flue gas is through utilizing pipeline 7 of giving vent to anger to discharge to the external world, utilize first filter screen 9 to absorb the harmful substance in the flue gas simultaneously.

In conclusion, the energy-saving device for the waste heat of the boiler flue gas in the thermal power plant is used, firstly, the second filter screen 16 is clamped into the clamping groove 14 to complete primary installation and limiting, then the electromagnet 24 removes the limiting on the telescopic block 17, the telescopic block 17 can be driven to move by the resilience force of the telescopic spring 21, so that the limiting block 20 can be clamped into the limiting groove 19 to complete secondary limiting and fixing on the second filter screen 16, after the fixing is completed, the collecting box 2 is placed into the energy-saving box 1, water is injected into the energy-saving box 1 by the aid of the water inlet 12, then the water can be injected into the outer side of the second heat exchange pipeline 13 by the aid of the first water pump 10, then the flue gas is input by the aid of the input pipeline 4, particles which can be utilized in the flue gas can be filtered by the aid of the second filter screen 16, and then the particles fall into the collecting box 2 to complete collection, then the flue gas enters into the inside of water inlet 12 and carries out the heat transfer, utilizes second water pump 11 can retrieve the water after the heat transfer is accomplished, and the flue gas discharges to the external world through outlet duct 7 at last, utilizes first filter screen 9 to absorb the harmful substance in the flue gas simultaneously.

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. The utility model provides a boiler flue gas waste heat economizer of thermal power plant, includes energy-conserving case (1), its characterized in that: the inside of energy-saving box (1) is provided with collecting box (2), the inside of collecting box (2) is provided with two second filter screens (16), spacing groove (19) have been seted up in the outside of second filter screen (16), the flexible groove of second (22) has been seted up to the inside of collecting box (2), fixed slot (23) have been seted up to the inside of collecting box (2) and the top that is located the flexible groove of second (22), the inside fixed mounting of the flexible groove of second (22) has expanding spring (21), the inside of the flexible groove of second (22) is provided with flexible piece (17), the bottom fixed mounting of flexible piece (17) has stopper (20), spacing groove (19) and stopper (20) looks adaptation.

2. The heat-engine plant boiler flue gas waste heat energy-saving device according to claim 1, characterized in that: the filter screen is characterized in that an input port (3) is formed in one side of the collecting box (2), a cover plate (15) is fixedly mounted at the top of the collecting box (2), two clamping grooves (14) are formed in the collecting box (2), the second filter screen (16) is matched with the clamping grooves (14), and two first telescopic grooves (18) are formed in the collecting box (2).

3. The heat-engine plant boiler flue gas waste heat energy-saving device according to claim 1, characterized in that: the inside fixed mounting of fixed slot (23) has electro-magnet (24), electro-magnet (24) and flexible piece (17) magnetic connection.

4. The heat-engine plant boiler flue gas waste heat energy-saving device according to claim 1, characterized in that: the energy-saving box is characterized in that two partition plates (5) are fixedly mounted inside the energy-saving box (1), a second heat exchange pipeline (13) is fixedly mounted inside the energy-saving box (1), a first heat exchange pipeline (6) is fixedly mounted inside the energy-saving box (1), and one end of the first heat exchange pipeline (6) is fixedly connected with one end of the second heat exchange pipeline (13).

5. The heat-engine plant boiler flue gas waste heat energy-saving device according to claim 4, characterized in that: the inside fixed mounting of energy-conserving case (1) has second water pump (11), the inside of energy-conserving case (1) and the below fixed mounting that is located second water pump (11) have first water pump (10), the equal fixed mounting of output of first water pump (10) and second water pump (11) has connecting pipe (8), two connecting pipe (8) all run through another baffle (5) and extend to one side of baffle (5).

6. The heat-engine plant boiler flue gas waste heat energy-saving device according to claim 1, characterized in that: the inside fixed mounting of energy-saving box (1) has pipeline (7) of giving vent to anger, the inside fixed mounting of pipeline (7) of giving vent to anger has first filter screen (9), pipeline (7) of giving vent to anger runs through energy-saving box (1) and extends to one side of energy-saving box (1).

7. The heat-engine plant boiler flue gas waste heat energy-saving device according to claim 1, characterized in that: the water inlet (12) have been seted up at the top of energy-saving box (1), one side fixed mounting of energy-saving box (1) has input pipeline (4), input pipeline (4) run through energy-saving box (1) and extend to the inside of energy-saving box (1).