CN214764442U - Combined type deep dust removal device of coal-fired boiler - Google Patents
Combined type deep dust removal device of coal-fired boiler Download PDFInfo
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- CN214764442U CN214764442U CN202120319208.5U CN202120319208U CN214764442U CN 214764442 U CN214764442 U CN 214764442U CN 202120319208 U CN202120319208 U CN 202120319208U CN 214764442 U CN214764442 U CN 214764442U
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Abstract
The utility model relates to a desulfurization technical field, and disclose a coal fired boiler combination formula degree of depth dust collector, it is high to have solved the cost of wet electrostatic precipitator itself on the existing market, and the power consumption is high, and the running cost is higher, and whole economic nature is relatively poor to and the dust emission index is unstable after the desulfurization that the dust remover purifies is restrainted in the ubiquitous management of tube bank dust remover, can appear the short-term nature and exceed standard or the condition that discontinuity exceeds standard, realize 5mg NM in addition3The problem that the index is also more difficult is discharged to particulate matter, it includes the absorption tower, the inside fixed mounting of absorption tower has the tube bank dust remover, one side of absorption tower is equipped with the fluoroplastics condenser, the intercommunication has the cigarette between fluoroplastics condenser and the absorption towerAir pipe, the utility model discloses, have the emission that makes the particulate matter and realize 5mg/NM3And the emission index is stable and free from fluctuation, the short-time or stage overproof effect can be avoided, and the flue gas can be cooled better.
Description
Technical Field
The utility model belongs to the technical field of the desulfurization, specifically be a coal fired boiler combination formula degree of depth dust collector.
Background
The desulfurization engineering has been developed for many years, the technology is mature, and the mainstream dust treatment technology after desulfurization is a wet electrostatic dust collector and a tube bundle type dust collector; the wet electrostatic precipitator is installed on or behind a desulfurizing tower, and is a device which utilizes high-voltage pulse direct current and an electric field to drive fine smoke dust in flue gas to be accelerated and settled on the surface of an anode so as to remove dust particles in the flue gas.
However, the wet electrostatic precipitator in the current market is high in manufacturing cost, high in power consumption, high in operation cost and poor in overall economy, and the situation that the emission index of desulfurized dust purified by the tube bundle precipitator is unstable and exceeds the standard in short time or in discontinuity is difficult to achieve due to the common existence of the tube bundle precipitator in the tube bundle precipitator, and the emission index of particles of 5mg/Nm3 is difficult to achieve.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming prior art's defect, the utility model provides a coal fired boiler combination formula degree of depth dust collector, the effectual wet electrostatic precipitator cost itself who has solved on the existing market is high, and the power consumption is high, and the running cost is higher, and whole economy is relatively poor, and the dust emission index is unstable after the desulfurization that the dust remover purifies is managed in the ubiquitous tube of tube bank dust remover, can appear the short-time nature and exceed standard or the problem of the condition that the discontinuity exceeds standard.
In order to achieve the above object, the utility model provides a following technical scheme: a combined type deep dust removal device for a coal-fired boiler comprises an absorption tower, wherein a tube bundle dust remover is fixedly mounted inside the absorption tower, a fluoroplastic condenser is arranged on one side of the absorption tower, a flue gas pipeline is communicated between the fluoroplastic condenser and the absorption tower, a heat exchange tube bundle is arranged inside the fluoroplastic condenser, a flue demister is arranged on one side of the heat exchange tube bundle and is fixed inside the fluoroplastic condenser, a water inlet pipeline is communicated with the bottom of the fluoroplastic condenser, a water tank is fixedly mounted at the bottom of the fluoroplastic condenser and is communicated with the water tank, a water purification device is fixedly mounted at the bottom of the fluoroplastic condenser, a water purification pipeline is communicated with the water tank and is fixedly mounted on the water tank, and a water outlet pipeline is fixedly mounted at the water outlet end of the water pump, a demister cleaning nozzle is fixedly arranged in the fluoroplastic condenser and communicated with a water outlet pipeline; a dust remover cleaning spray head is fixedly arranged above the tube bundle dust remover and is communicated with a water outlet pipeline; and a plurality of groups of spray headers are also arranged in the absorption tower, and the flue gas enters the absorption tower from the lower part of the spray headers.
Preferably, one side of the fluoroplastics condenser is provided with an opening, and the demister cleaning spray head is positioned on one side of the flue demister.
Preferably, one side of the water tank is provided with a switch, and the water pump is electrically connected with the power supply through the switch.
Preferably, the water outlet pipeline is provided with a branch pipeline, and the water outlet pipeline is respectively connected with the demister cleaning spray head and the dust remover cleaning spray head through the branch pipeline.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the combined type deep dust removal device is characterized in that a tube bundle type dust remover is arranged at the top of a desulfurizing tower, and is combined with a coil pipe in a flue gas white removal system behind the desulfurizing tower for removing dust in a coordinated manner, so that emission indexes are met; the discharge concentration of the tube bundle dust removal device is generally designed to be 10mg/NM3The combination of individual equipment manufacturer and the tray in the desulfurizing tower can also ensure 5mg/NM3But the situation of short-term exceeding or discontinuous exceeding frequently occurs, and the general guaranteed value is up to the hour average value of the environmental protection bureau, the heat exchange tube bundle has the function of exchanging heat with hot flue gas after desulfurization by using water as a cooling medium to cool the flue gas and condense water vapor in the flue gas, thereby achieving the purpose of dehumidifying the flue gas, in the condensation process of water vapor in high-temperature flue gas, particulate matters can be agglomerated and grown, tiny fog drop dust in the flue gas is used as condensation nuclei, saturated wet flue gas after desulfurization is cooled to form condensation water vapor, the condensation water vapor is combined with the condensation nuclei to grow up and is taken away by separated condensation water, in sum, the concentration of the particulate matters after two processes can continuously and stably reach below 5mg/Nm3, a tray or other dust removal devices are not required to be arranged in a desulfurizing tower, the heat exchange tube bundle is generally equipment in a boiler flue gas white elimination device, and the scheme only utilizes the potential effect thereof in a synergistic manner;
2) the flue gas can produce the comdenstion water after, the comdenstion water can enter into the water tank through the inlet channel in, add the medicine through purifier and water purification pipeline, make the comdenstion water in the water tank obtain purifying, thereby can reuse, after the comdenstion water purifies, pass through the water pump again, with the water suction in the water tank to outlet conduit in, reentrant defroster washs shower nozzle and dust remover washing shower nozzle, at last by the shower nozzle blowout, thereby wash flue defroster and tube bank dust remover, the while also can be moisturizing in the desulfurizing tower.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall front sectional structure of the present invention;
in the figure: 1. an absorption tower; 2. a tube bundle dust remover; 3. a flue gas duct; 4. a fluoroplastic condenser; 5. a heat exchange tube bundle; 6. a flue demister; 7. a water tank; 8. a water inlet pipe; 9. a water purification device; 10. a water pump; 11. a water purification pipeline; 12. a water outlet pipeline; 13. cleaning a spray head by a demister; 14. cleaning the spray head by the dust remover; 15. and a spray header.
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 some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the first embodiment, as shown in fig. 1, the utility model discloses a combined type deep dust removal device for coal-fired boiler, which comprises an absorption tower 1, a tube bundle dust remover 2 is fixedly arranged in the absorption tower 1, a fluoroplastic condenser 4 is arranged on one side of the absorption tower 1, a flue gas pipeline 3 is communicated between the fluoroplastic condenser 4 and the absorption tower 1, a heat exchange tube bundle 5 is fixed in the fluoroplastic condenser 4, a plurality of rings of the heat exchange tube bundle 5 are fixed in the fluoroplastic condenser 4, so that the flue gas in the fluoroplastic condenser 4 can be rapidly cooled, one end of the heat exchange tube bundle 5 passes through cooling water, the other end outputs the cooling water, a flue demister 6 is arranged on one side of the heat exchange tube bundle 5, the flue demister 6 is fixedly arranged in the fluoroplastic condenser 4, the bottom of the fluoroplastic condenser 4 is communicated with a water inlet pipeline 8, and a water tank 7 is fixedly arranged at the bottom of the fluoroplastic condenser 4, the water inlet pipeline 8 is communicated with the water tank 7, the water purifier 9 is fixedly installed at the bottom of the fluoroplastic condenser 4, the water purifying pipeline 11 is communicated with the bottom of the water purifier 9, the water purifying pipeline 11 is communicated with the water tank 7, the demister cleaning nozzle 13 is fixedly installed inside the fluoroplastic condenser 4, and the demister cleaning nozzle 13 is communicated with the water outlet pipeline 12; a dust remover cleaning nozzle 14 is fixedly arranged above the tube bundle dust remover 2, and the dust remover cleaning nozzle 14 is communicated with the water outlet pipeline 12; still be provided with a plurality of groups of shower head 15 in absorption tower 1, the flue gas enters into by shower head 15 below in absorption tower 1, when this device used, the flue gas enters into absorption tower 1 by shower head 15's below in, shower head 15 links to each other with external pipeline to make the interior blowout moisture of shower head 15, enter into the high temperature flue gas and cool down the desulfurization.
In the second embodiment, on the basis of the first embodiment, the opening is formed on one side of the fluoroplastic condenser 4, and the demister cleaning nozzle 13 is located on one side of the flue demister 6, so that the flue demister 6 can be cleaned.
In the third embodiment, on the basis of the first embodiment, a switch is arranged on one side of the water tank 7, the water pump 10 is electrically connected with a power supply through the switch, and when the switch is turned on, the water pump 10 starts to work.
In the fourth embodiment, on the basis of the first embodiment, the water outlet pipe 12 is provided with branch pipes, and the water outlet pipe 12 is respectively connected with the demister cleaning nozzle 13 and the dust remover cleaning nozzle 14 through the branch pipes. Thereby cleaning the flue demister 6 and the tube bundle dust remover 2 and simultaneously supplementing water in the desulfurizing tower.
In this embodiment: the model of the water pump 10 is 50WQ10-10-1.1, and the model of the water purifier 9 is ZJYRO-0.25/H.
The working principle is as follows: at present, in the market, the pipe bundle dust remover 2 is used alone, and the particulate matter can not reach 5mg/Nm3This is achieved only by the wet electrostatic precipitator. The purpose of the heat exchanger tube bundle 5 in the present apparatus is to make it blanched (so that the moisture content of the exhaust air is reduced). The two components can reach the particle content below 5mg and the function of eliminating white color with low investment.
The flue gas can firstly pass through the absorption tower 1 and then enter the tube bundle dust remover 2, so that the flue gas is subjected to first-step dust removal, the flue gas subjected to first-step dust removal can enter the fluoroplastic condenser 4 through the flue gas pipeline 3, the flue gas is cooled through the heat exchange tube bundle 5, water vapor in the flue gas is condensed, so that condensation nuclei are formed by tiny droplet dust in the flue gas, the saturated wet flue gas after desulfurization is cooled to form condensation water vapor, the condensation water vapor is combined with the condensation nuclei to grow up, the precipitated condensation water is taken away, and the flue gas is subjected to second-step dust removal, so that 5mg/NM (nanometer) can be realized by the emission of particulate matters3And the emission index is stable and free from fluctuation, and the short-time or stage overproof effect can not occur.
Flue gas can produce the comdenstion water after the condensation, the comdenstion water can enter into in the water tank 7 through inlet channel 8, add the medicine through water purification pipeline 11 by purifier 9, make the comdenstion water obtain purifying in the water tank 7, thereby can reuse, after the comdenstion water purifies, rethread water pump 10, with the water suction in the water tank 7 in outlet channel 12, reentrant defroster washing shower nozzle 13 and dust remover washing shower nozzle 14, at last by the shower nozzle blowout, thereby wash flue defroster 6 and tube bank dust remover 2, simultaneously also can be for moisturizing in the desulfurizing tower.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a coal fired boiler combination formula degree of depth dust collector, includes absorption tower (1), its characterized in that: the absorption tower is characterized in that a tube bundle dust remover (2) is fixedly mounted inside the absorption tower (1), a fluoroplastic condenser (4) is arranged on one side of the absorption tower (1), a flue gas pipeline (3) is communicated between the fluoroplastic condenser (4) and the absorption tower (1), a heat exchange tube bundle (5) is arranged inside the fluoroplastic condenser (4), a flue demister (6) is arranged on one side of the heat exchange tube bundle (5), the flue demister (6) is fixed inside the fluoroplastic condenser (4),
the bottom of the fluoroplastic condenser (4) is communicated with a water inlet pipeline (8), the bottom of the fluoroplastic condenser (4) is fixedly provided with a water tank (7), the water inlet pipeline (8) is communicated with the water tank (7), the bottom of the fluoroplastic condenser (4) is fixedly provided with a water purifying device (9), the bottom of the water purifying device (9) is communicated with a water purifying pipeline (11), the water purifying pipeline (11) is communicated with the water tank (7), the water tank (7) is fixedly provided with a water pump (10), the water outlet end of the water pump (10) is fixedly provided with a water outlet pipeline (12), the interior of the fluoroplastic condenser (4) is fixedly provided with a demister cleaning spray head (13), and the demister cleaning spray head (13) is communicated with the water outlet pipeline (12); a dust remover cleaning spray head (14) is fixedly arranged above the tube bundle dust remover (2), and the dust remover cleaning spray head (14) is communicated with the water outlet pipeline (12); a plurality of groups of spray headers (15) are arranged in the absorption tower (1), and the flue gas enters the absorption tower (1) from the lower part of the spray headers (15).
2. The combined type deep dust removal device for the coal-fired boiler according to claim 1, characterized in that: one side of fluoroplastics condenser (4) is equipped with the opening, defroster washs shower nozzle (13) and is located one side of flue defroster (6).
3. The combined type deep dust removal device for the coal-fired boiler according to claim 1, characterized in that: and a switch is arranged on one side of the water tank (7), and the water pump (10) is electrically connected with a power supply through the switch.
4. The combined type deep dust removal device for the coal-fired boiler according to claim 1, characterized in that: the water outlet pipeline (12) is provided with branch pipelines, and the water outlet pipeline (12) is respectively connected with the demister cleaning spray head (13) and the dust remover cleaning spray head (14) through the branch pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120319208.5U CN214764442U (en) | 2021-02-04 | 2021-02-04 | Combined type deep dust removal device of coal-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120319208.5U CN214764442U (en) | 2021-02-04 | 2021-02-04 | Combined type deep dust removal device of coal-fired boiler |
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| Publication Number | Publication Date |
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| CN214764442U true CN214764442U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120319208.5U Active CN214764442U (en) | 2021-02-04 | 2021-02-04 | Combined type deep dust removal device of coal-fired boiler |
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- 2021-02-04 CN CN202120319208.5U patent/CN214764442U/en active Active
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