CN215765022U

CN215765022U - Coal-fired boiler cooling device

Info

Publication number: CN215765022U
Application number: CN202122136372.5U
Authority: CN
Inventors: 苏德; 于龙; 韩双江; 王冠洲
Original assignee: Manzhouli Dalai Lake Thermal Power Co ltd
Current assignee: Manzhouli Dalai Lake Thermal Power Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-02-08
Anticipated expiration: 2031-09-06
Also published as: DE202022103002U1

Abstract

The utility model discloses a coal-fired boiler cooling device which comprises a boiler body, wherein a partition plate is fixedly connected between two sides of the inner wall of the boiler body, the top of the partition plate is arranged into a heating cavity, the bottom of the partition plate is arranged into a combustion cavity, one side of the top of the boiler body is fixedly connected with a preheating box, the bottom of the inner wall of the boiler body is fixedly connected with a cooling frame, an S-shaped heat exchange tube is fixedly connected inside the cooling frame, and two ends of the S-shaped heat exchange tube penetrate through the boiler body and extend to the outside of the boiler body. According to the utility model, cold water in the S-shaped heat exchange pipe can exchange heat with the coal cinder on the cooling frame, so that the coal cinder is cooled, the cooling device has a good cooling function, and is convenient for follow-up workers to more conveniently treat the combusted coal cinder, and a water source after heat exchange is discharged into the preheating box through the water inlet pipe to perform water replenishing work of the heating cavity, so that heat energy is fully utilized, and the functionality of the boiler is improved.

Description

Coal-fired boiler cooling device

Technical Field

The utility model relates to the technical field of coal boilers, in particular to a coal-fired boiler cooling device.

Background

The boiler is an energy conversion device, the energy input to the boiler is chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or organic heat carrier with certain heat energy, the origin of the boiler refers to a water container heated on fire, the boiler refers to a place where fuel is combusted, and the boiler: the boiler consists of a boiler and a furnace, wherein the upper water-containing part is the boiler, the lower heating part is the furnace, and the boiler and the furnace are integrally designed to be called as the boiler.

The hot water or steam generated in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device, or the mechanical energy is converted into electric energy through a generator.

Among the correlation technique, through the boiler to the coal burning back, need clear up the cinder, traditional boiler does not have cooling function to as far as when clearing up the cinder, because the cinder after the burning has the uniform temperature, and then causes the staff not convenient for clear up the cinder, the security is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defect that the prior art does not have a cooling function, and provides a coal-fired boiler cooling device.

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

a coal-fired boiler cooling device comprises a boiler body, wherein a partition plate is fixedly connected between two sides of the inner wall of the boiler body, the top of the partition plate is arranged to be a heating cavity, the bottom of the partition plate is arranged to be a combustion cavity, one side of the top of the boiler body is fixedly connected with a preheating box, the bottom of the inner wall of the boiler body is fixedly connected with a cooling frame, an S-shaped heat exchange tube is fixedly connected inside the cooling frame, two ends of the S-shaped heat exchange tube penetrate through the boiler body and extend to the outside of the boiler body, one end, extending to the outside of the boiler body, of the S-shaped heat exchange tube is communicated with a water inlet tube, and the other end of the water inlet tube is communicated with the inside of the preheating box;

the coal cinder after burning on the cooling frame can be subjected to heat exchange through the cold water in the S-shaped heat exchange pipe, so that the coal cinder is cooled, and the cooling device has a good cooling function.

The above technical solution further comprises:

be provided with the clearance subassembly on the furnace body, the clearance subassembly including articulate in the positive baffle of furnace body, the back of baffle is passed through bolt fixedly connected with and is scraped the board, the top of furnace body rotates and is connected with the limiting plate, the slag notch has been seted up in the front of furnace body.

A backing plate is fixedly connected between two sides of the inner wall of the combustion chamber, and an opening is formed in the backing plate.

The bottom of the partition plate is communicated with a plurality of smoke exhaust pipes, and the other ends of the smoke exhaust pipes sequentially penetrate through the furnace body and the preheating box and extend to one side of the preheating box.

One side of the furnace body is provided with a feeding nozzle, the bottom of the feeding nozzle is communicated with the inside of the combustion chamber, and the top of the feeding nozzle is hinged with a cover plate.

The front of furnace body is provided with the drain pipe, the drain pipe with the inside intercommunication in heating chamber.

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

according to the utility model, the S-shaped heat exchange tube extends to one end outside the furnace body, so that the S-shaped heat exchange tube is conveniently connected with a water supply position, cold water can be conveniently injected into the S-shaped heat exchange tube, the burned coal cinder on the cooling frame can be subjected to heat exchange through the cold water, the coal cinder is cooled, a good cooling function is realized, the burned coal cinder is more conveniently treated by subsequent workers, the water source after heat exchange is discharged into the preheating box through the water inlet tube, the water replenishing work of the heating cavity is carried out, the heat energy is fully utilized, and the functionality of the boiler is improved.

Drawings

FIG. 1 is a schematic structural view of a cooling apparatus of a coal-fired boiler according to the present invention;

FIG. 2 is a cross-sectional rear view of the furnace body of FIG. 1;

FIG. 3 is a structural cross-sectional view of the cooling frame of FIG. 2;

fig. 4 is a schematic structural diagram of the cleaning assembly in fig. 1.

In the figure: 1. a furnace body; 2. a partition plate; 3. a preheating box; 4. a cooling frame; 5. an S-shaped heat exchange tube; 6. a water inlet pipe; 7. cleaning the assembly; 71. a baffle plate; 72. scraping a plate; 73. a limiting plate; 8. a base plate; 9. an opening; 10. a smoke exhaust pipe; 11. a feed nozzle; 12. a cover plate; 13. and a water discharge pipe.

Detailed Description

The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1-4, the cooling device for a coal-fired boiler provided by the utility model comprises a boiler body 1, wherein a partition plate 2 is fixedly connected between two sides of the inner wall of the boiler body 1, the top of the partition plate 2 is provided with a heating cavity, the bottom of the partition plate 2 is provided with a combustion cavity, one side of the top of the boiler body 1 is fixedly connected with a preheating box 3, the preheating box 3 is communicated with the heating cavity of the boiler body 1, the bottom of the inner wall of the boiler body 1 is fixedly connected with a cooling frame 4, the inside of the cooling frame 4 is fixedly connected with an S-shaped heat exchange tube 5, two ends of the S-shaped heat exchange tube 5 penetrate through the boiler body 1 and extend to the outside of the boiler body 1, one end of the S-shaped heat exchange tube 5 extending to the outside of the boiler body 1 is communicated with a water inlet tube 6, and the other end of the water inlet tube 6 is communicated with the inside of the preheating box 3;

the S-shaped heat exchange tube 5 extends to one end of the outside of the furnace body 1, so that the S-shaped heat exchange tube is conveniently connected with a water supply position, cold water is conveniently injected into the S-shaped heat exchange tube 5, and the burned coal cinder on the cooling frame 4 can be subjected to heat exchange through the cold water, so that the coal cinder is cooled;

the boiler has a good cooling function, so that not only can subsequent workers conveniently treat the burned coal slag, but also the heat-exchanged water source is discharged into the preheating box 3 through the water inlet pipe 6 to perform water replenishing work of the heating cavity, so that heat energy is fully utilized, and the functionality of the boiler is improved;

the top of the furnace body 1 is provided with an exhaust pipe.

The above technical solution further comprises:

the furnace body 1 is provided with a cleaning assembly 7, the cleaning assembly 7 comprises a baffle 71 hinged to the front side of the furnace body 1, the back side of the baffle 71 is fixedly connected with a scraping plate 72 through bolts, the top of the furnace body 1 is rotatably connected with a limiting plate 73, and the front side of the furnace body 1 is provided with a slag discharge port;

through the setting of clearance subassembly 7, can clear up the cinder after the burning, through manual rotation limiting plate 73, can make limiting plate 73 lose with baffle 71's contact, fan-shaped motion baffle 71 of rethread, fan-shaped motion through baffle 71, just can open row cinder notch, and the fan-shaped motion of baffle 71 can drive scrapes the fan-shaped motion of board 72, through the fan-shaped motion of scraping board 72, just can be with the cinder on the cooling frame 4 to the position motion of row cinder notch, arrange sediment work, have good row's sediment function.

A backing plate 8 is fixedly connected between two sides of the inner wall of the combustion chamber, and an opening 9 is formed in the backing plate 8;

through the setting of backing plate 8, the depositing of the coal of being convenient for burn, through the setting of opening 9 moreover, the separation of the cinder of not only being convenient for, the coal of being convenient for is abundant to contact with the air moreover, improves combustion effect, is provided with corresponding pump on the furnace body 1 for aerify to the inside of furnace body 1.

The bottom of the partition plate 2 is communicated with a plurality of smoke exhaust pipes 10, and the other ends of the smoke exhaust pipes 10 sequentially penetrate through the furnace body 1 and the preheating box 3 and extend to one side of the preheating box 3;

the preferred four of the quantity of tub 10 of discharging fume, also can be according to the different quantity of actual setting for discharge to the inside flue gas of burning of combustion chamber, in addition at the in-process that discharges, can preheat with the inside water source of preheating cabinet 3, abundant utilizes the waste heat, has reduced the loss of heat energy.

In the embodiment, coal is combusted in the combustion cavity, heat is generated by combusting the coal, the water source on the partition plate 2 is heated by high-temperature heat, the smoke gas combusted in the combustion cavity is discharged by the smoke discharge pipe 10, and the smoke gas can be preheated with the water source in the preheating box 3 in the discharging process;

the setting of the backing plate 8 is convenient for storing the burning coal, and the setting of the opening 9 is convenient for separating the burned coal slag to fall to the top of the cooling frame 4;

one end extending to the outside of the furnace body 1 through the S-shaped heat exchange tube 5 is connected with a water supply position, cold water is injected into the S-shaped heat exchange tube 5, and the burned coal cinder on the cooling frame 4 can be subjected to heat exchange through the cold water, so that the coal cinder is cooled;

through manual fan-shaped motion baffle 71, through the fan-shaped motion of baffle 71, just can open row's cinder notch, the fan-shaped motion of baffle 71 can drive the fan-shaped motion of scraping board 72 moreover, through the fan-shaped motion of scraping board 72, just can be with the cinder on the cooling frame 4 to the position motion of row's cinder notch, arrange sediment work.

Example two

As shown in fig. 1-2, based on the first embodiment, a feeding nozzle 11 is disposed on one side of the furnace body 1, the bottom of the feeding nozzle 11 is communicated with the inside of the combustion chamber, and a cover plate 12 is hinged to the top of the feeding nozzle 11.

In this embodiment, through the setting of feeding mouth 11, be convenient for put into the burning chamber with the coal that needs the burning, carry out the burning work, through the setting of apron 12, be convenient for shelter from feeding mouth 11 moreover, avoid burning the inside flue gas in chamber to pass through feeding mouth 11 and discharge, reduced burning chamber heating effect.

EXAMPLE III

As shown in fig. 1-2, based on the first or second embodiment, the front surface of the furnace body 1 is provided with a water drainage pipe 13, and the water drainage pipe 13 is communicated with the interior of the heating cavity.

In this embodiment, through the setting of drain pipe 13, the drainage of the water source of being convenient for, be provided with corresponding control valve on the drain pipe 13 moreover, be convenient for to the control of drain pipe 13.

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 coal-fired boiler cooling device comprises a boiler body (1) and is characterized in that a partition plate (2) is fixedly connected between two sides of the inner wall of the boiler body (1), the top of the partition plate (2) is provided with a heating cavity, the bottom of the partition plate (2) is provided with a combustion cavity, one side of the top of the furnace body (1) is fixedly connected with a preheating box (3), the bottom of the inner wall of the furnace body (1) is fixedly connected with a cooling frame (4), an S-shaped heat exchange tube (5) is fixedly connected inside the cooling frame (4), both ends of the S-shaped heat exchange tube (5) penetrate through the furnace body (1) and extend to the outside of the furnace body (1), one end of the S-shaped heat exchange tube (5) extending to the outside of the furnace body (1) is communicated with a water inlet tube (6), the other end of the water inlet pipe (6) is communicated with the interior of the preheating tank (3).

2. The cooling device of the coal-fired boiler according to claim 1, characterized in that a cleaning assembly (7) is arranged on the boiler body (1), the cleaning assembly (7) comprises a baffle (71) hinged to the front surface of the boiler body (1), the back surface of the baffle (71) is fixedly connected with a scraping plate (72) through a bolt, the top of the boiler body (1) is rotatably connected with a limiting plate (73), and the front surface of the boiler body (1) is provided with a slag discharge port.

3. A coal-fired boiler cooling device as defined in claim 1, characterized in that a backing plate (8) is fixedly connected between both sides of the inner wall of the combustion chamber, and an opening (9) is provided inside the backing plate (8).

4. A coal-fired boiler cooling device as defined in claim 1, characterized in that the bottom of the partition plate (2) is connected with a plurality of smoke exhaust pipes (10), and the other ends of the plurality of smoke exhaust pipes (10) sequentially penetrate the furnace body (1) and the preheating tank (3) and extend to one side of the preheating tank (3).

5. A coal-fired boiler cooling device as defined in claim 1, characterized in that a feeding nozzle (11) is provided at one side of the furnace body (1), the bottom of the feeding nozzle (11) is communicated with the inside of the combustion chamber, and the top of the feeding nozzle (11) is hinged with a cover plate (12).

6. A coal fired boiler cooling arrangement according to claim 1 characterized in that the front side of the furnace body (1) is provided with a drain pipe (13), said drain pipe (13) communicating with the interior of the heating chamber.