CN212566269U - Novel coal fired boiler system based on multichannel through-flow pulverized coal burner - Google Patents

Abstract

The utility model discloses a novel coal fired boiler system based on multichannel through-flow pulverized coal burner relates to coal fired boiler technical field, including the boiler pot body, box and combustion chamber are smashed to the bottom fixedly connected with of the boiler pot body, it is equipped with the premixing box body to smash between box and the premixing box body, the top fixedly connected with air pump of premixing box body, the bottom fixedly connected with intake pipe of air pump. This novel coal fired boiler system based on multichannel through-flow pulverized coal burner sets up through the cooperation of smashing the box, premixing box and combustion chamber, smashes the box and at first smashes the coal-fired coal into the buggy, and the buggy fully mixes in premixing box with the air, and the combustion chamber lights premixed combustion thing, has increased the utilization efficiency of coal-fired, sets up through the cooperation of heating the box, the end diversion plate of intaking, play water end diversion plate and mid portion baffle, can guarantee that the cold water in the boiler tank body obtains the intensive heating.

Description

Novel coal fired boiler system based on multichannel through-flow pulverized coal burner

Technical Field

The utility model relates to a coal fired boiler technical field specifically is a novel coal fired boiler system based on multichannel through-flow pulverized coal burner.

Background

In modern life, coal-fired boiler is a boiler that is more commonly used, mainly use coal as fuel, be used for producing boiling water, hot water or steam etc. current coal-fired boiler mostly adopts the coal of blocking as fuel, this makes the coal difficult to obtain abundant burning, the utilization ratio of fire coal is not high, and current boiler mostly adopts the water in the jar body of direct heating's mode heating of jar body, but because the coefficient of heat conductivity of liquid is in inverse proportion to its temperature, can reduce along with the temperature rise of water promptly, has brought the boiler bottom and has heated the back water of end, be difficult to the water of other parts with the temperature transmission fast, heating efficiency is low.

In chinese utility model patent application no: the utility model discloses a novel coal fired boiler is disclosed in CN201921048386.8, comprising a boiler, the bottom one end of boiler is connected with the auger conveying pipeline, the top of auger conveying pipeline is connected with crushing case, the top of smashing the case is connected with the loading hopper, and the inside below both sides position department symmetry that is close to the loading hopper of smashing the case is provided with the squeeze roll, the bottom outer wall of boiler is close to the below of auger conveying pipeline and is connected with the fan housing, the air-out end at first fan is passed through to the one end of fan housing. According to the novel coal-fired boiler, the pulverized coal is pulverized by the pulverizing box, so that the utilization efficiency of the pulverized coal is improved, but the pulverized coal is not premixed with gas, so that the combustion efficiency is bottleneck; in addition, the device is not provided with a separate water circulation mechanism.

Therefore, there is a need to provide a new coal-fired boiler system based on a multi-channel through-flow pulverized coal burner to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel coal fired boiler system based on multichannel through-flow pulverized coal burner to current coal fired boiler who proposes in solving above-mentioned background art is difficult to the high efficiency and utilizes fire coal, problem that heating efficiency is low.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a novel coal fired boiler system based on multichannel through-flow pulverized coal burner, includes the boiler jar body, box and combustion chamber are smashed to the bottom fixedly connected with of the boiler jar body, it is equipped with the premixing box body to smash between box and the premixing box body, the top fixedly connected with air pump of premixing box body, the bottom fixedly connected with intake pipe of air pump, smash one side fixedly connected with buggy export that the box is close to the premixing box body, the inner chamber middle part fixedly connected with premixing division board of premixing box body, a plurality of premixing draught tubes of middle part fixedly connected with of premixing division board, a plurality of the one end that premixing draught tube kept away from premixing division board all runs through the premixing box body and stretches into the combustion chamber, the bottom fixedly connected with point firearm of combustion chamber, the top fixedly connected with heating box body of combustion chamber, the inside fixedly connected with of heating, The boiler comprises a water outlet end water distribution plate and a plurality of middle part partition plates, wherein a plurality of water inlet end water distribution holes are formed in the middle of the water inlet end water distribution plate, a plurality of water outlet end water distribution holes are formed in the middle of the water outlet end water distribution plate, a sealed box body and a hot water outlet pipe are arranged inside the boiler body, the bottom of the hot water outlet pipe penetrates through the boiler body and stretches into the heating box body, a heat-resistant water pump is fixedly connected inside the sealed box body, a water pump inlet pipe is fixedly connected to the top of the sealed box body, a heat-resistant water pump, a water pump inlet pipe and the boiler body are penetrated through the bottom of the water pump inlet pipe and stretches into the heating box body, and a.

Preferably, the crushing box body is positioned on one side of the bottom of the boiler tank body, the combustion chamber is positioned on the other side of the bottom of the boiler tank body, the top of the crushing box body is provided with a feed inlet, and the feed inlet is positioned on one side, far away from the boiler tank body, of the top of the crushing box body.

Preferably, the boiler jar body is close to one side middle part fixedly connected with jar body inlet tube of smashing the box, the one end that jar body inlet tube is close to the boiler jar body stretches into the boiler jar body, the one side middle part fixedly connected with jar body outlet pipe that the boiler jar body is close to the combustion chamber, the one end that jar body outlet pipe is close to the boiler jar body stretches into the boiler jar body.

Preferably, one end of the premixing box body is fixedly connected with the crushing box body, the other end of the premixing box body is fixedly connected with the combustion chamber, and one side of the air pump is fixedly connected with the crushing box body.

Preferably, one end of the pulverized coal outlet, which is far away from the crushing box body, extends into the premixing box body, the bottom of the air inlet pipe penetrates through the premixing box body and is fixedly connected with the premixing box body, and the air inlet pipe and the pulverized coal outlet are both located between the crushing box body and the premixing partition plate.

Preferably, it is a plurality of the premixing draught tube is the annular array distribution, and is a plurality of the premixing draught tube is close to the one end of premixing division board and all runs through the premixing division board, and is a plurality of the one end that the premixing draught tube is close to the premixing division board all is located between crushing box and the premixing division board, and is a plurality of the one end that the premixing draught tube kept away from the premixing division board all with combustion chamber fixed connection.

Preferably, the water outlet end water distribution plate is located on one side of an inner cavity of the heating box, the water inlet end water distribution plate is located on the other side of the inner cavity of the heating box, the middle partition plates are located between the water outlet end water distribution plate and the water inlet end water distribution plate, and the two ends of the middle partition plates are fixedly connected with the water outlet end water distribution plate and the water inlet end water distribution plate respectively.

Preferably, the plurality of middle division plates, the water inlet end water distribution holes and the water outlet end water distribution holes are linearly distributed at equal intervals, and the plurality of middle division plates, the water inlet end water distribution holes and the water outlet end water distribution holes are distributed in a staggered mode.

Preferably, the bottom of hot water outlet pipe is located between heating box inner wall and the play water end diversion board, the bottom and the heating box fixed connection of hot water outlet pipe, the bottom of water pump inlet tube is located between heating box inner wall and the end diversion board of intaking, the bottom and the heating box fixed connection of water pump inlet tube, the top of hot water outlet pipe is higher than the top of water pump inlet tube.

Preferably, the bottom of the smoke exhaust pipe extends into the combustion chamber and is fixedly connected with the combustion chamber, the middle of the smoke exhaust pipe penetrates through the boiler tank and is fixedly connected with the boiler tank, and the top of the smoke exhaust pipe is located above the boiler tank.

Compared with the prior art, the utility model provides a novel coal fired boiler system based on multichannel through-flow pulverized coal burner possesses following beneficial effect:

1. this novel coal fired boiler system based on multichannel through-flow pulverized coal burner sets up through the cooperation of smashing the box, premixing box and combustion chamber, smashes the box and at first smashes into the buggy with the coal-fired, and pulverized coal and air intensive mixing in premixing box, the combustion chamber lights premixed combustion thing, has increased the utilization efficiency of coal-fired, has avoided the insufficient condition of the coal-fired burning of blocking, has solved current coal fired boiler and has been difficult to the high-efficient problem of utilizing the coal-fired.

2. This novel coal fired boiler system based on multichannel through-flow pulverized coal burner sets up through the cooperation of heating box, the end of intaking divides the water board, the end of going out divides the water board and the well part baffle, can guarantee that the cold water in the boiler jar body obtains fully heating, through the setting of resistant hot water pump, can actuate the water in the boiler jar body to make the water in the boiler jar body obtain fully heating, avoid the water at the heating end in the boiler jar body to prevent the upper water to be heated, solved the problem that current coal fired boiler heating efficiency is low.

3. This novel coal fired boiler system based on multichannel through-flow pulverized coal burner, through the setting of the pipe of discharging fume, the middle part of the pipe of discharging fume is located the internal portion of boiler jar, and the internal portion moisture of heating boiler jar that can be further, the effectual waste heat that utilizes the combustion chamber to burn waste gas.

Drawings

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

FIG. 2 is a schematic sectional view of the boiler body structure of the present invention;

FIG. 3 is a schematic sectional view of the premixing tank structure according to the present invention;

fig. 4 is a schematic top-view cross-sectional view of the heating box structure of the present invention.

In the figure: 1. a boiler tank; 11. a water inlet pipe of the tank body; 12. a water outlet pipe of the tank body; 13. sealing the box body; 14. a heat-resistant water pump; 15. a water inlet pipe of a water pump; 16. a hot water outlet pipe; 2. a crushing box body; 21. a feed inlet; 22. a pulverized coal outlet; 3. a premixing box body; 31. an air pump; 32. an air inlet pipe; 33. a pre-mixing partition plate; 34. a premix draft tube; 4. a combustion chamber; 41. an igniter; 42. a smoke exhaust pipe; 5. heating the box body; 51. a water inlet end diversion plate; 52. a water inlet end is provided with a water distribution hole; 53. a water distribution plate at the water outlet end; 54. a water distribution hole at the water outlet end; 55. a middle partition plate.

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.

Referring to fig. 1-4, a novel coal-fired boiler system based on a multi-channel through-flow pulverized coal burner comprises a boiler tank 1, a pulverizing tank 2 and a combustion chamber 4 are fixedly connected to the bottom of the boiler tank 1, the pulverizing tank 2 is located on one side of the bottom of the boiler tank 1, the combustion chamber 4 is located on the other side of the bottom of the boiler tank 1, a feed inlet 21 is formed in the top of the pulverizing tank 2, the feed inlet 21 is located on one side of the top of the pulverizing tank 2 away from the boiler tank 1, a tank inlet pipe 11 is fixedly connected to the middle of one side of the boiler tank 1 close to the pulverizing tank 2, one end of the tank inlet pipe 11 close to the boiler tank 1 extends into the boiler tank 1, a tank outlet pipe 12 is fixedly connected to the middle of one side of the boiler tank 1 close to the combustion chamber 4, one end of the tank outlet pipe 12 close to, the top of the premixing box body 3 is fixedly connected with an air pump 31, the bottom of the air pump 31 is fixedly connected with an air inlet pipe 32, one side of the crushing box body 2 close to the premixing box body 3 is fixedly connected with a pulverized coal outlet 22, one end of the premixing box body 3 is fixedly connected with the crushing box body 2, the other end of the premixing box body 3 is fixedly connected with a combustion chamber 4, one side of the air pump 31 is fixedly connected with the crushing box body 2, the middle of an inner cavity of the premixing box body 3 is fixedly connected with a premixing partition plate 33, one end of the pulverized coal outlet 22 far away from the crushing box body 2 extends into the premixing box body 3, the bottom of the air inlet pipe 32 penetrates through the premixing box body 3 and is fixedly connected with the premixing box body 3, the air inlet pipe 32 and the pulverized coal outlet 22 are both positioned between the crushing box body 2 and the premixing partition plate 33, the middle of the premixing partition, the premixed draft tubes 34 are distributed in an annular array, one ends of the premixed draft tubes 34 close to the premixed partition plate 33 penetrate through the premixed partition plate 33, one ends of the premixed draft tubes 34 close to the premixed partition plate 33 are located between the crushing box body 2 and the premixed partition plate 33, one ends of the premixed draft tubes 34 far away from the premixed partition plate 33 are fixedly connected with the combustion chamber 4, the bottom of the combustion chamber 4 is fixedly connected with an igniter 41, the top of the combustion chamber 4 is fixedly connected with a heating box body 5, through the matched arrangement of the crushing box body 2, the premixing box body 3 and the combustion chamber 4, the crushing box body 2 firstly crushes the coal into the coal powder, the coal powder and the air are fully mixed in the premixed box body 3, the premixed combustion substances are ignited by the combustion chamber 4, the utilization efficiency of the coal is increased, the condition that the combustion of the lump coal is not fully combusted is avoided, and the problem that the coal is, a water inlet end water distribution plate 51, a water outlet end water distribution plate 53 and a plurality of middle partition plates 55 are fixedly connected inside the heating box body 5, a plurality of water inlet end water distribution holes 52 are formed in the middle of the water inlet end water distribution plate 51, a plurality of water outlet end water distribution holes 54 are formed in the middle of the water outlet end water distribution plate 53, the water outlet end water distribution plate 53 is positioned on one side of the inner cavity of the heating box body 5, the water inlet end water distribution plate 51 is positioned on the other side of the inner cavity of the heating box body 5, the plurality of middle partition plates 55 are all positioned between the water outlet end water distribution plate 53 and the water inlet end water distribution plate 51, two ends of the plurality of middle partition plates 55 are respectively and fixedly connected with the water outlet end water distribution plate 53 and the water inlet end water distribution plate 51, the plurality of middle partition plates 55, the water inlet end water distribution holes 52 and the water outlet end water distribution holes 54 are all in equidistant linear distribution, the plurality of middle, the bottom of the hot water outlet pipe 16 penetrates through the boiler tank body 1 and extends into the heating tank body 5, the interior of the sealing tank body 13 is fixedly connected with a heat-resistant water pump 14, the top of the sealing tank body 13 is fixedly connected with a water pump inlet pipe 15, the bottom of the water pump inlet pipe 15 penetrates through the heat-resistant water pump 14, the water pump inlet pipe 15 and the boiler tank body 1 and extends into the heating tank body 5, the bottom of the hot water outlet pipe 16 is positioned between the inner wall of the heating tank body 5 and a water outlet end diversion plate 53, the bottom of the hot water outlet pipe 16 is fixedly connected with the heating tank body 5, the bottom of the water pump inlet pipe 15 is positioned between the inner wall of the heating tank body 5 and a water inlet end diversion plate 51, the bottom of the water pump inlet pipe 15 is fixedly connected with the heating tank body 5, the top of the hot water outlet pipe 16 is, can ensure that the cold water in the boiler tank 1 can be fully heated, and the water in the boiler tank 1 can be driven through the arrangement of the heat-resisting water pump 14, thereby fully heating the water in the boiler tank 1, avoiding the water at the heating end in the boiler tank 1 from preventing the upper water from being heated, and solving the problem of low heating efficiency of the existing coal-fired boiler, wherein one side of the combustion chamber 4 far away from the premixing box body 3 is fixedly connected with a smoke exhaust pipe 42, the bottom of the smoke exhaust pipe 42 extends into the combustion chamber 4 and is fixedly connected with the combustion chamber 4, the middle part of the smoke exhaust pipe 42 penetrates through the boiler tank 1 and is fixedly connected with the boiler tank 1, the top part of the smoke exhaust pipe 42 is positioned above the boiler tank 1, and the middle part of the smoke exhaust pipe 42 is positioned in the boiler tank 1 through the arrangement of the smoke exhaust pipe 42, the water in the boiler tank body 1 can be further heated, and the waste heat of the combustion waste gas in the combustion chamber 4 is effectively utilized.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

When in use, water is injected into the boiler tank body 1 from the tank body water inlet pipe 11, the coal blocks are put into the crushing tank body 2 from the feed inlet 21, the crushing tank body 2 crushes the coal into coal powder and then discharges the coal powder into the premixing tank body 3 from the coal powder outlet 22, the air pump 31 is started, external air is pumped and pressurized and then is discharged into the premixing tank body 3 from the air inlet pipe 32, coal ash and air are fully mixed in the premixing tank body 3 and then are discharged into the combustion chamber 4 through the plurality of premixing through-flow pipes 34, the premixed combustion object is ignited by the igniter 41 to start heating, the heat-resistant water pump 14 starts to work, cold water at the bottom of the boiler tank body 1 is pumped into the heating tank body 5, after the combustion chamber 4 is heated, hot water is discharged to the top of the boiler tank body 1 from the hot water outlet pipe 16, the water inlet end water distribution plate 51, the water outlet end water distribution plate 53 and the plurality of middle partition plates 55 are matched, after the premixed combustion objects in the combustion chamber 4 are combusted, the exhaust gas is discharged from the smoke exhaust pipe 42, and the moisture in the boiler tank 1 can be further heated because the middle part of the smoke exhaust pipe 42 is positioned in the boiler tank 1.

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 (10)

1. The utility model provides a novel coal fired boiler system based on multichannel through-flow pulverized coal combustor, includes boiler tank body (1), its characterized in that: the boiler comprises a boiler body (1), wherein the bottom of the boiler body is fixedly connected with a crushing box body (2) and a combustion chamber (4), a premixing box body (3) is arranged between the crushing box body (2) and the premixing box body (3), the top of the premixing box body (3) is fixedly connected with an air pump (31), the bottom of the air pump (31) is fixedly connected with an air inlet pipe (32), one side of the crushing box body (2) close to the premixing box body (3) is fixedly connected with a pulverized coal outlet (22), the middle of an inner cavity of the premixing box body (3) is fixedly connected with a premixing partition plate (33), the middle of the premixing partition plate (33) is fixedly connected with a plurality of premixing through pipes (34), one ends, far away from the premixing partition plate (33), of the premixing through the premixing box body (3) and extend into the combustion chamber (4), and the bottom of the combustion chamber (4, the top fixedly connected with heating box (5) of combustion chamber (4), the inside fixedly connected with of heating box (5) is intake end distributive plate (51), is gone out water end distributive plate (53) and a plurality of middle part division board (55), a plurality of intake end distributive holes (52) have been seted up at the middle part of intake end distributive plate (51), a plurality of play water end distributive holes (54) have been seted up at the middle part of play water end distributive plate (53), the inside of boiler tank body (1) is equipped with sealed box (13) and hot water outlet pipe (16), the bottom of hot water outlet pipe (16) is run through boiler tank body (1) and is stretched into heating box (5), the inside fixedly connected with of sealed box (13) has heat-resistant water pump (14), the top fixedly connected with water pump inlet tube (15) of sealed box (13), the bottom of water pump inlet tube (15) runs through heat-resistant water pump (14), The boiler comprises a water pump water inlet pipe (15) and a boiler tank body (1) and extends into a heating tank body (5), and a smoke exhaust pipe (42) is fixedly connected to one side, far away from the premixing tank body (3), of a combustion chamber (4).

2. The novel coal-fired boiler system based on multichannel through-flow pulverized coal burner of claim 1, characterized in that: smash box (2) and be located bottom one side of the boiler jar body (1), combustion chamber (4) are located the bottom opposite side of the boiler jar body (1), feed inlet (21) have been seted up at the top of smashing box (2), feed inlet (21) are located the one side of smashing the box (2) top and keeping away from the boiler jar body (1).

3. The novel coal-fired boiler system based on multichannel through-flow pulverized coal burner of claim 1, characterized in that: boiler tank body (1) is close to one side middle part fixedly connected with jar body inlet tube (11) of smashing box (2), the one end that the jar body inlet tube (11) is close to boiler tank body (1) stretches into boiler tank body (1), one side middle part fixedly connected with jar body outlet pipe (12) that boiler tank body (1) is close to combustion chamber (4), the one end that the jar body outlet pipe (12) is close to boiler tank body (1) stretches into boiler tank body (1).

4. The novel coal-fired boiler system based on multichannel through-flow pulverized coal burner of claim 1, characterized in that: one end of the premixing box body (3) is fixedly connected with the crushing box body (2), the other end of the premixing box body (3) is fixedly connected with the combustion chamber (4), and one side of the air pump (31) is fixedly connected with the crushing box body (2).

5. The novel coal-fired boiler system based on multichannel through-flow pulverized coal burner of claim 1, characterized in that: pulverized coal outlet (22) is kept away from the one end of smashing box (2) and is stretched into premixing box (3), the bottom of intake pipe (32) run through premixing box (3) and with premixing box (3) fixed connection, intake pipe (32) and pulverized coal outlet (22) all are located smash between box (2) and premixing division board (33).

6. The novel coal-fired boiler system based on multichannel through-flow pulverized coal burner of claim 1, characterized in that: it is a plurality of premix draught tube (34) are the ring array and distribute, and are a plurality of premix draught tube (34) are close to the one end of premixing division board (33) and all run through premixing division board (33), and are a plurality of premix draught tube (34) are close to the one end of premixing division board (33) and all are located between crushing box (2) and premixing division board (33), and are a plurality of premix draught tube (34) keep away from the one end of premixing division board (33) all with combustion chamber (4) fixed connection.

7. The novel coal-fired boiler system based on multichannel through-flow pulverized coal burner of claim 1, characterized in that: go out water end water diversion plate (53) and be located heating box (5) inner chamber one side, it is located heating box (5) inner chamber opposite side to intake end water diversion plate (51), and is a plurality of middle part division board (55) all are located out water end water diversion plate (53) and intake between end water diversion plate (51), and are a plurality of the both ends of middle part division board (55) respectively with go out water end water diversion plate (53) and intake end water diversion plate (51) fixed connection.

8. The novel coal-fired boiler system based on multichannel through-flow pulverized coal burner of claim 1, characterized in that: the middle partition plates (55), the water inlet end water distribution holes (52) and the water outlet end water distribution holes (54) are linearly distributed at equal intervals, and the middle partition plates (55), the water inlet end water distribution holes (52) and the water outlet end water distribution holes (54) are distributed in a staggered mode.

9. The novel coal-fired boiler system based on multichannel through-flow pulverized coal burner of claim 1, characterized in that: the bottom of hot water outlet pipe (16) is located between heating box (5) inner wall and the play water end diversion board (53), the bottom and the heating box (5) fixed connection of hot water outlet pipe (16), the bottom of water pump inlet tube (15) is located between heating box (5) inner wall and the end diversion board (51) of intaking, the bottom and the heating box (5) fixed connection of water pump inlet tube (15), the top of hot water outlet pipe (16) is higher than the top of water pump inlet tube (15).

10. The novel coal-fired boiler system based on multichannel through-flow pulverized coal burner of claim 1, characterized in that: the bottom of the smoke exhaust pipe (42) extends into the combustion chamber (4) and is fixedly connected with the combustion chamber (4), the middle of the smoke exhaust pipe (42) penetrates through the boiler tank body (1) and is fixedly connected with the boiler tank body (1), and the top of the smoke exhaust pipe (42) is located above the boiler tank body (1).

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