CN210861163U - Power station boiler system - Google Patents
Power station boiler system Download PDFInfo
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- CN210861163U CN210861163U CN201921848472.7U CN201921848472U CN210861163U CN 210861163 U CN210861163 U CN 210861163U CN 201921848472 U CN201921848472 U CN 201921848472U CN 210861163 U CN210861163 U CN 210861163U
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Abstract
The utility model discloses a power station boiler system, including boiler and fume extractor, fume extractor includes cooler (100), water tower (200), gas wash tower (300) and desulphurization unit, the outlet flue of boiler with the inlet flue intercommunication of cooler (100), gas wash tower (300) have first inlet flue (310) and first outlet flue (320), the outlet flue of cooler (100) with first inlet flue (310) intercommunication, first outlet flue (320) with the desulphurization unit intercommunication, gas wash tower (300) are provided with dust collector (330), cooler (100) have cold water import and hot water export, the cold water import with the delivery port intercommunication of water tower (200), the hot water export with the water inlet intercommunication of water tower (200). The scheme solves the problem that the desulfurization effect of the existing smoke exhaust device is poor.
Description
Technical Field
The utility model relates to a boiler equipment technical field especially relates to a power plant boiler system.
Background
In the field of utility boilers, a boiler is an energy conversion device, and specifically, fuel is combusted in the boiler, so that chemical energy in the fuel is converted into heat energy through combustion, the heat energy is usually used for heating water, one part of the water is heated for heating, and the other part of the water is heated to generate steam for a turbine to generate electricity. In order to meet the normal work and life of people, a large amount of coal is consumed by the boiler of the thermal power plant every year, the boiler is rapidly and continuously increased, gas and smoke dust are discharged after the coal is combusted, the environment is greatly polluted, and therefore the treatment of the boiler smoke gas is required to be enhanced.
At present, the boiler flue gas is treated mainly by wet desulphurization, and the sulfide in the flue gas is usually removed by limestone slurry, so that the pollution to the air is reduced. However, in a specific working process, since flue gas generated by a boiler is generally high-temperature gas, during wet flue gas desulfurization, the high-temperature flue gas can evaporate limestone slurry, thereby affecting desulfurization effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a power station boiler system to solve the relatively poor problem of present fume extractor's desulfurization effect.
In order to solve the above problem, the utility model adopts the following technical scheme:
the utility model provides a power station boiler system, includes boiler and fume extractor, fume extractor includes cooler, water tower, gas wash tower and desulphurization unit, the outlet flue of boiler with the inlet flue intercommunication of cooler, the gas wash tower has first inlet flue and first outlet flue, the outlet flue of cooler with first inlet flue intercommunication, first outlet flue with desulphurization unit intercommunication, the gas wash tower is provided with dust collector, the cooler has cold water inlet and hot water export, cold water inlet with the delivery port intercommunication of water tower, the hot water export with the water inlet intercommunication of water tower.
The utility model discloses a technical scheme can reach following beneficial effect:
the embodiment of the utility model discloses among the power plant boiler system, the produced flue gas of fuel burning in the boiler loops through the cooling of cooler, the dust removal back of gas wash tower, finally discharges desulphurization unit and carries out desulfurization processing, and under this kind of condition, the temperature of the flue gas that finally discharges among the desulphurization unit is lower to prevent that the higher flue gas of temperature from evaporating the desulfurization solution among the desulphurization unit, and then make desulphurization unit's desulfurization effect better.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
FIG. 1 is a schematic structural diagram of a utility boiler system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a part of a lime pit according to an embodiment of the present invention;
fig. 3 is a schematic partial structure view of a lime pit at another viewing angle according to an embodiment of the present invention.
Description of reference numerals:
100-a cooler;
200-a water tower;
300-a dust removal tower, 310-a first smoke inlet, 320-a first smoke outlet, 330-a dust removal device, 331-a water inlet pipe, 332-a first spraying part, 340-a first rotational flow plate, 350-a first diversion hopper and 360-a wastewater outlet;
400-a desulfurizing tower, 410-a second smoke inlet, 420-a second smoke outlet, 430-a second spraying part, 440-a solution outlet, 450-a second cyclone plate, 460-a second guide funnel and 470-a demister;
500-lime pool, 510-filter screen, 520-first inner cavity, 530-second inner cavity and 540-mounting groove;
600-a first pipe, 610-a first water pump;
700-second pipe, 710-second water pump.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and 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.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1-3, the embodiment of the present invention discloses a utility boiler system, which comprises a boiler and a smoke exhaust device.
The boiler is an energy conversion device, and particularly, fuel (usually pulverized coal) is combusted in the boiler, heat energy generated by the combustion of the fuel is used for heating water, and in general, a part of the heated water is used for heating a user, and the other part of the heated water is used for generating steam for power generation of a steam turbine.
The smoke exhaust device is communicated with the boiler, so that smoke generated by combustion of fuel in the boiler can be purified, and the smoke is finally discharged into the atmosphere after being purified by the smoke exhaust device.
Specifically, fume extractor includes cooler 100, water tower 200, gas wash tower 300 and desulphurization unit, the outlet flue of boiler and the inlet flue intercommunication of cooler 100, thereby make produced flue gas in the boiler can discharge in cooler 100, and then make the flue gas can cool down through cooler 100, meanwhile, gas wash tower 300 has first inlet flue 310 and first outlet flue 320, the outlet flue and the first inlet flue 310 intercommunication of cooler 100, thereby make the flue gas after cooler 100 cools down can enter into gas wash tower 300, gas wash tower 300 is provided with dust collector 330, and then make the flue gas remove dust through gas wash tower 300, and further, first outlet flue 320 and the desulphurization unit intercommunication of gas wash tower 300, thereby make the flue gas after being cooled down and removing dust can enter into desulphurization unit and carry out desulfurization treatment.
And simultaneously, the embodiment of the utility model provides an in, cooler 100 has cold water inlet and hot water outlet, cold water inlet and the delivery port intercommunication of water tower 200, the water inlet intercommunication of hot water outlet and water tower 200, under this kind of mode, provide the water source for cooler 100 through water tower 200 to can cool down the processing to the flue gas that enters into in cooler 100, simultaneously, the hot water that cooler 100 discharged can discharge the water tower 200 once more through the hot water outlet, thereby can realize the reuse to water, and then can practice thrift the water source.
Therefore, the embodiment of the utility model discloses in the power station boiler system, the produced flue gas of fuel burning in the boiler loops through the cooling temperature of cooler 100, the dust removal back of gas wash tower 300, finally discharges desulphurization unit and carries out desulfurization treatment, and under this kind of condition, the temperature of the flue gas that finally discharges among the desulphurization unit is lower to prevent that the higher flue gas of temperature from evaporating the desulfurization solution among the desulphurization unit, and then make desulphurization unit's desulfurization effect better.
The embodiment of the utility model provides an in, dust removal tower 300 generally adopts wet dedusting, and is concrete, and dust collector 330 includes inlet tube 331 and first spraying portion 332, and first spraying portion 332 sets up in dust removal tower 300, and the one end of inlet tube 331 stretches into in the dust removal tower 300, and communicates with first spraying portion 332. In specific working process, when the flue gas enters into gas wash tower 300, inlet tube 331 carries the water source to first portion 332 that sprays, and further, sprinkles in to gas wash tower 300 through first portion 332 that sprays to can remove dust to the flue gas, simultaneously, this kind of mode can also carry out cooling processing once more to the flue gas, and then makes the temperature of discharging the flue gas in the desulphurization unit lower.
Of course, the first spraying part 332 can enable the flue gas to be in full contact with water, and then can better remove dust from the flue gas and cool the flue gas. Meanwhile, the bottom of the dust removal tower 300 is provided with a wastewater outlet 360, so that the water after dust removal can be discharged through the wastewater outlet 360.
Based on this, in order to enable more flue gas entering the dust removal tower 300 to be dedusted and cooled by the dedusting apparatus 330, the first flue gas inlet 310 of the dust removal tower 300 may be disposed at the bottom of the dust removal tower 300, the first flue gas outlet 320 of the dust removal tower 300 may be disposed at the top of the dust removal tower 300, and the first spray part 332 may be disposed between the first flue gas inlet 310 and the first flue gas outlet 320. Under this kind of mode, the flue gas can enter into the gas wash tower 300 from the bottom of gas wash tower 300, simultaneously, because the temperature of flue gas is high and the density of flue gas is less than the density of air, therefore the flue gas can float upwards to make the flue gas at the in-process that flows to first outlet flue 320, most flue gas can both be removed dust and the cooling through dust collector 330, finally improves the dust collection efficiency of gas wash tower 300.
Meanwhile, in order to enable a larger portion of the flue gas passing through the first spraying part 332 to be dedusted and cooled, a first cyclone plate 340 may be further disposed in the dedusting tower 300, and the first cyclone plate 340 may be disposed between the first flue gas inlet 310 and the first spraying part 332. Under this kind of circumstances, the flue gas that enters into in the gas wash tower 300 is at the in-process that upwards flows, because temporary blocking of first whirl plate 340 to make the flue gas can be diffused, and then make the diffusion area of the flue gas that passes first whirl plate 340 great, finally make the hydroenergy that first shower portion 332 sprinkle can be better with the flue gas contact, thereby can remove dust and cool down the flue gas betterly.
Meanwhile, a first guiding funnel 350 may be further disposed in the dust removing tower 300, specifically, the first guiding funnel 350 may be disposed between the first smoke inlet 310 and the first rotational flow plate 340, and the diameter of the first guiding funnel 350 increases gradually in the direction toward the first rotational flow plate 340. In specific working process, the flue gas that enters into in the gas wash tower 300 is at the in-process that upwards flows, and the flue gas can be through the even diffusion of first water conservancy diversion fill 350 to make the flue gas diffusion's that flows to first whirl board 340 more even, and then make the flue gas diffusion's that passes first whirl board 340 more even, finally make first shower portion 332 can remove dust and cool down the flue gas betterly.
The embodiment of the utility model discloses in the power plant boiler system, desulphurization unit can include desulfurizing tower 400, lime pond 500, first pipeline 600 and second pipeline 700, and in concrete assembling process, desulfurizing tower 400 has seted up the second and has advanced mouth of smoke 410, and the second advances mouth of smoke 410 and 320 intercommunications of first outlet flue of gas wash tower 300 to make the flue gas carry out desulfurization treatment in can entering into desulfurizing tower 400. Of course, in a preferable scheme, the second smoke inlet 410 may be opened at the bottom of the desulfurization tower 400, and meanwhile, the second smoke outlet 420 may be opened at the top of the desulfurization tower 400, so that the flue gas can be discharged through the second smoke outlet 420 after being sufficiently desulfurized.
In order to enable the desulfurization tower 400 to better perform desulfurization treatment, a second spraying part 430 may be disposed in the desulfurization tower 400, and the second spraying part 430 is located between the second smoke inlet 410 and the second smoke outlet 420, in this case, the flue gas enters from the bottom of the desulfurization tower 400, further, in the process that the flue gas flows upwards, most of the flue gas can pass through the second spraying part 430, so that the second spraying part 430 sprays the desulfurization solution to perform desulfurization treatment on the flue gas, and finally, the desulfurized flue gas is discharged through the second smoke outlet 420 at the top of the desulfurization tower 400. The second spraying part 430 may also enable the desulfurization solution to be in better contact with the flue gas, thereby improving the desulfurization effect of the desulfurization solution.
Of course, the desulfurization solution sprayed in the second spraying part 430 is generally limestone solution, and in a specific assembling process, one end of the first pipeline 600 is communicated with the liquid outlet of the lime pit 500, and the other end of the first pipeline 600 extends into the desulfurization tower 400 and is communicated with the second spraying part 430, so that the lime pit 500 can provide limestone solution for the second spraying part 430, and the second spraying part 430 can spray limestone solution to perform desulfurization treatment on flue gas. Meanwhile, in order to enable the second spraying part 430 to better spray the limestone solution, the first pipeline 600 may be provided with a first water pump 610, and the first water pump 610 may pump the limestone solution in the lime pit 500 into the second spraying part 430, so that the hydraulic pressure of the limestone solution sprayed in the second spraying part 430 is relatively large, and further the area of the sprayed limestone solution is relatively large, and finally the limestone solution may be in better contact with the flue gas, thereby improving the desulfurization effect of the limestone solution.
And simultaneously, the embodiment of the utility model provides an in, solution outlet 440 can have been seted up to the bottom of desulfurizing tower 400, and the one end of second pipeline 700 can communicate with solution outlet 440, and the other end of second pipeline 700 can communicate with the inlet in lime pond 500. In this way, after the limestone solution sprayed by the second spraying part 430 desulfurizes the flue gas, the limestone solution can be conveyed into the lime pit 500 through the second pipe 700, so that the limestone solution can be reused, and the utilization rate of the limestone solution can be further improved.
Of course, the second pipe 700 may be further provided with a second water pump 710, and the second water pump 710 may pump the limestone solution into the lime pit 500, so that the limestone solution in the desulfurization tower 400 can be well transferred into the lime pit 500, and finally, the solution outlet 440 is prevented from being blocked by the sediment in the solution.
In a specific working process, the limestone solution chemically reacts with the sulfides in the flue gas to generate solid sulfides, and the solid sulfides finally flow into the lime pit 500 through the limestone solution. In this case, the sulfide solution in a solid state can be pumped to the second spraying part 430 again.
Therefore, in order to prevent solid sulfides from blocking the second spraying part 430, a filter screen 510 may be disposed in the lime pit 500, specifically, the filter screen 510 may divide the inner cavity of the lime pit 500 into a first inner cavity 520 and a second inner cavity 530, the liquid outlet of the lime pit 500 is communicated with the first inner cavity 520, and the liquid inlet of the lime pit 500 is communicated with the second inner cavity 530. In this way, the solid sulfide can be blocked in the second inner cavity 530 by the filter screen 510, so as to prevent the solid sulfide from entering the second spraying part 430 to block the second spraying part 430.
The mounting mode of filter screen 510 in lime pit 500 can be multiple, and filter screen 510 can weld or bond on the inner wall of lime pit 500, and of course, in order to facilitate the change of filter screen 510, the inner wall of lime pit 500 can be provided with mounting groove 540, and at least part of filter screen 510 can set up in mounting groove 540, and the assembly and the dismantlement of filter screen 510 are facilitated to this kind of mode.
The mounting groove 540 may be a groove-shaped structure formed on the inner wall of the lime pit 500, and of course, in a preferable scheme, the mounting groove 540 may be a groove-shaped structure protruding from the inner wall surface of the lime pit 500, and compared with the mounting groove 540 formed on the inner wall of the lime pit 500, the strength of the inner wall of the lime pit 500 is not affected by this way, and meanwhile, this way can also better prevent the solid sulfide in the limestone solution of the second inner cavity 530 from entering the first inner cavity 520.
The utility model discloses an in the embodiment, in order to make the great part of the flue gas through second spraying portion 430 can be desulfurized, can also be provided with second whirl board 450 in desulfurizing tower 400, second whirl board 450 can set up between second inlet 410 and second spraying portion 430. Under this kind of condition, the flue gas that enters into among the desulfurizing tower 400 is at the in-process that upwards flows, because temporary blocking of second whirl plate 450 to make the flue gas can be diffused, and then make the diffusion area of the flue gas that passes second whirl plate 450 great, finally make the limestone solution that second spraying portion 430 sprayed can contact with the flue gas betterly, thereby can carry out desulfurization treatment to the flue gas betterly.
Meanwhile, a second flow guiding hopper 460 may be further disposed in the desulfurization tower 400, specifically, the second flow guiding hopper 460 may be disposed between the second smoke inlet 410 and the second rotational flow plate 450, and the diameter of the second flow guiding hopper 460 increases gradually in a direction toward the second rotational flow plate 450. In specific working process, the flue gas that enters into among the desulfurizing tower 400 is at the in-process that upwards flows, and the flue gas can be through the even diffusion of second water conservancy diversion fill 460 to make the flue gas diffusion's that flows to second whirl board 450 more even, and then make the flue gas diffusion's that passes second whirl board 450 more even, finally make second shower portion 430 can carry out desulfurization treatment to the flue gas betterly.
The utility model discloses an in the embodiment, the boiler passes through the wet flue gas desulfurization of desulfurizing tower 400 and handles the back, is mingled with some steam in the flue gas usually, consequently, can also be provided with defroster 470 in the desulfurizing tower 400, and is concrete, and defroster 470 can set up between second shower portion 430 and second outlet flue 420 to make the flue gas can detach the steam in the flue gas through defroster 470, and then discharge out through second outlet flue 420, finally improve the purification rate of flue gas.
The utility model discloses what the key description in the above embodiment is different between each embodiment, and different optimization characteristics are as long as not contradictory between each embodiment, all can make up and form more preferred embodiment, consider that the literary composition is succinct, then no longer describe here.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a power station boiler system, its characterized in that, includes boiler and fume extractor, fume extractor includes cooler (100), water tower (200), gas wash tower (300) and desulphurization unit, the outlet flue of boiler with the inlet flue intercommunication of cooler (100), gas wash tower (300) have first inlet flue (310) and first outlet flue (320), the outlet flue of cooler (100) with first inlet flue (310) intercommunication, first outlet flue (320) with the desulphurization unit intercommunication, gas wash tower (300) are provided with dust collector (330), cooler (100) have cold water inlet and hot water outlet, the cold water inlet with the delivery port intercommunication of water tower (200), the hot water outlet with the water inlet intercommunication of water tower (200).
2. The utility boiler system according to claim 1, characterized in that the first inlet (310) is arranged at the bottom of the dust tower (300), the first outlet (320) is arranged at the top of the dust tower (300), the dust removing device (330) comprises an inlet pipe (331) and a first spray portion (332), the first spray portion (332) is arranged in the dust tower (300) and is located between the first inlet (310) and the first outlet (320), and one end of the inlet pipe (331) extends into the dust tower (300) and is communicated with the first spray portion (332).
3. The utility boiler system according to claim 2, characterized in that a first swirl plate (340) is provided in the dust removal tower (300), the first swirl plate (340) being provided between the first flue gas inlet (310) and the first shower portion (332).
4. The utility boiler system according to claim 3, characterized in that a first guide funnel (350) is arranged in the dust removal tower (300), the first guide funnel (350) is arranged between the first smoke inlet (310) and the first swirl plate (340), and the diameter of the first guide funnel (350) increases in a direction towards the first swirl plate (340).
5. The utility boiler system according to claim 1, wherein the desulfurization device comprises a desulfurization tower (400), a lime pit (500), a first pipeline (600) and a second pipeline (700), a second smoke inlet (410) is opened at the bottom of the desulfurization tower (400), a second smoke outlet (420) is opened at the top of the desulfurization tower (400), and the second smoke inlet (410) is communicated with the first smoke outlet (320);
a second spraying part (430) is arranged in the desulfurizing tower (400), the second spraying part (430) is positioned between the second smoke inlet (410) and the second smoke outlet (420), one end of the first pipeline (600) is communicated with a liquid outlet of the lime pool (500), the other end of the first pipeline (600) extends into the desulfurizing tower (400) and is communicated with the second spraying part (430), a solution outlet (440) is formed in the bottom of the desulfurizing tower (400), one end of the second pipeline (700) is communicated with the solution outlet (440), and the other end of the second pipeline (700) is communicated with a liquid inlet of the lime pool (500).
6. A power plant boiler system according to claim 5, characterized in that a filter screen (510) is arranged in the lime pit (500), the filter screen (510) dividing the inner cavity of the lime pit (500) into a first inner cavity (520) and a second inner cavity (530), the liquid outlet of the lime pit (500) communicating with the first inner cavity (520), the liquid inlet of the lime pit (500) communicating with the second inner cavity (530).
7. The power boiler system according to claim 6, characterized in that the inner wall of the lime pit (500) is provided with a mounting groove (540), at least part of the filter screen (510) being arranged in the mounting groove (540).
8. The utility boiler system according to claim 5, characterized in that a second swirl plate (450) is provided in the desulfurizing tower (400), the second swirl plate (450) being provided between the second flue gas inlet (410) and the second shower (430).
9. The utility boiler system according to claim 8, characterized in that a second guide funnel (460) is provided in the desulfurizing tower (400), the second guide funnel (460) is provided between the second flue gas inlet (410) and the second swirl plate (450), and the second guide funnel (460) has an increasing diameter in a direction approaching the second swirl plate (450).
10. The utility boiler system according to claim 5, characterized in that a demister (470) is arranged in the desulfurizing tower (400), the demister (470) being arranged between the second spraying section (430) and the second flue gas outlet (420).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921848472.7U CN210861163U (en) | 2019-10-30 | 2019-10-30 | Power station boiler system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921848472.7U CN210861163U (en) | 2019-10-30 | 2019-10-30 | Power station boiler system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210861163U true CN210861163U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921848472.7U Active CN210861163U (en) | 2019-10-30 | 2019-10-30 | Power station boiler system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210861163U (en) |
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2019
- 2019-10-30 CN CN201921848472.7U patent/CN210861163U/en active Active
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.7 Anji Road, Andong Park, Jinjiang science and Technology Industrial Park, Quanzhou City, Fujian Province, 362271 Patentee after: Guoneng Shenfu (Jinjiang) Thermal Power Co.,Ltd. Patentee after: SHENHUA FUJIAN ENERGY Co.,Ltd. Patentee after: Guoneng (lianjiang) Gangdian Co.,Ltd. Address before: No.7 Anji Road, Andong Park, Jinjiang science and Technology Industrial Park, Quanzhou City, Fujian Province, 362271 Patentee before: FUJIAN JINJIANG COGENERATION Co.,Ltd. Patentee before: SHENHUA FUJIAN ENERGY Co.,Ltd. Patentee before: SHENHUA(FUZHOU)LUOYUAN BAY PORT&POWER Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |