CN110296427B - Automatic drainage device for flue of desulfurization draught fan - Google Patents
Automatic drainage device for flue of desulfurization draught fan Download PDFInfo
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- CN110296427B CN110296427B CN201910385198.2A CN201910385198A CN110296427B CN 110296427 B CN110296427 B CN 110296427B CN 201910385198 A CN201910385198 A CN 201910385198A CN 110296427 B CN110296427 B CN 110296427B
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- flue
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses an automatic flue drainage device of a desulfurization draught fan, which comprises a water storage tank, a liquid level switch, a valve and a stirring device, wherein the water storage tank is provided with a water inlet and a water outlet, the water inlet is connected with a closed flue, the valve comprises a first valve, a second valve and a third valve, the first valve is arranged at the upper part of the water storage tank and is used for switching on and off condensed water to flow into the water storage tank, the second valve is arranged at the lower part of the water storage tank and is used for switching on and off the condensed water to flow out of the water storage tank, an air inlet is formed in the water storage tank, the third valve is arranged at the air inlet to control the opening and closing of the air inlet, the liquid level switch is arranged on the water storage tank and is positioned above the first valve, the second valve, the third valve. The invention utilizes three valves to automatically switch alternately, overcomes the problems of negative pressure and sealing in the pipeline, realizes the automatic collection and automatic discharge of condensed water and sediments, and overcomes the problem of pipeline blockage caused by the sediments by virtue of the stirring device.
Description
Technical Field
The invention belongs to the technical field of flue equipment, and particularly relates to an automatic drainage device for a desulfurization draught fan flue.
Background
At present, the wet desulphurization is mainly used in most of thermal power plants in China, smoke generated in the desulphurization link enters a horizontal flue of a draught fan through a chimney, and because the humidity of the smoke coming out of a desulphurization tower is high, moisture is condensed, and in addition, the drainage structure is lost, so condensed water cannot be discharged, the horizontal flue is accumulated with water frequently, the corrosion of the flue is aggravated, and the service life of the flue is shortened. Secondly, because of the negative pressure in the flue gas pipeline and the need for sealing, water cannot be simply discharged through the opening, which is one of the technical difficulties. More seriously, in areas with lower temperature, accumulated water can be frozen after the fan is shut down in winter, so that the blade of the induced draft fan is frozen and jammed, even the risk of breaking the blade exists, and the stable operation of the unit is seriously influenced.
In the prior art, the flue is designed to be inclined from horizontal so that condensed water can be automatically collected from the closed opening. However, because the desulfurization draught fan is not provided with a drainage device, and because negative pressure exists in the flue and the influence of sealing factors is needed, the simple opening can not drain water; or only manual drainage is adopted, but manual drainage cannot solve the problems that the drainage pipe is easy to block and the drainage is not smooth due to accumulation of sediments.
Disclosure of Invention
The invention aims to provide an automatic drainage device for prolonging the service life of a flue of a desulfurization draught fan, which is suitable for drainage of the flue of the desulfurization draught fan, can realize automatic drainage, can overcome negative pressure influence, and has the advantage of blockage prevention.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a desulfurization draught fan flue automatic drainage device, includes catch basin, liquid level switch, valve and agitating unit, and the catch basin has water inlet and delivery port, and the water inlet is connected its characterized in that with the binding off of flue:
the valves comprise a first valve, a second valve and a third valve, the first valve is arranged at the upper part of the water storage tank to open or close the flow of the condensed water into the water storage tank, the second valve is arranged at the lower part of the water storage tank to open or close the flow of the condensed water out of the water storage tank, the water storage tank is provided with an air inlet, and the third valve is arranged at the air inlet to control the opening or closing of the air inlet;
the liquid level switch is arranged on the water storage tank, is positioned above the first valve and is electrically connected with the first valve, the second valve, the third valve and the stirring device;
the stirring device is arranged in the water storage tank and is positioned between the first valve and the second valve.
Further, agitating unit includes waterproof motor and stirring vane, and waterproof motor fixes in the catch basin, and stirring vane is connected in waterproof motor's pivot, and stirring vane can stir the water and the precipitate in the catch basin when rotatory, avoids the precipitate deposit to cause the second valve to block up.
Furthermore, the air inlet is externally connected with a straight-through pipe which is vertically arranged, and the third valve is arranged on the straight-through pipe to control whether air can enter the air inlet from the straight-through pipe or not.
Further, the water storage tank is tubular and is formed by an upper tank section, a middle tank section and a lower tank section in a split mode, the upper portion of the middle tank section is connected with the upper tank section, the lower portion of the middle tank section is connected with the lower tank section, the water inlet and the air inlet are formed in the upper tank section, and the water outlet is formed in the lower tank section.
Furthermore, a single chip microcomputer is arranged among the liquid level switch, the first valve, the second valve, the third valve and the stirring device, the liquid level switch transmits a liquid level switch signal to the single chip microcomputer, and the single chip microcomputer controls the three valves and the stirring device to operate.
After the scheme is adopted, the invention has the characteristics of simple integral structure and low cost, can overcome the problems of negative pressure and sealing in the pipeline by skillfully utilizing the automatic alternate switch of the three valves, realizes the automatic collection and automatic discharge of condensed water and sediments, and further avoids the corrosion problem caused by accumulated water at the outlet of a desulfurization induced draft fan or a flue close to a chimney; secondly, the invention successfully overcomes the problem that the sediment blocks the pipeline by means of the stirring device.
Drawings
FIG. 1 is a schematic view of the present invention in connection with a flue;
FIG. 2 is an exploded schematic view of the present invention;
FIG. 3 is an internal schematic view of a reservoir for accumulating condensate in accordance with the present invention;
FIG. 4 is an internal schematic view of the instant water level trigger level switch of the present invention;
FIG. 5 is an internal schematic view of the present invention with the level switch activated, the first valve closed, and the stirring device open;
FIG. 6 is a schematic view of the inside of the stirring apparatus of the present invention fully stirring water and sediments;
FIG. 7 is an internal view of the present invention with the second and third valves open and sediment and standing water in the reservoir are all drained from the outlet;
FIG. 8 is an internal schematic view of the automatic water discharge ending and resetting system of the present invention.
Description of reference numerals:
the device comprises a water storage tank 1, a water inlet 11, a water outlet 12, a tank upper section 13, a gas inlet 131, a straight-through pipe 132, a tank middle section 14, a tank lower section 15, a liquid level switch 2, a first valve 3, a second valve 4, a third valve 5, a stirring device 6, a waterproof motor 61, a rotating shaft 611, a stirring blade 62, a flue 7 and a closing-up 71.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts, please refer to fig. 1-8.
An automatic drainage device for a flue of a desulfurization draught fan comprises a water storage tank 1, a liquid level switch 2, a valve and a stirring device 6.
As shown in fig. 1, the reservoir 1 has an inlet 11 and an outlet 12. Because the horizontal flue 7 is designed with an inclined angle, a gathered closing-in 71 is formed at the bottom of the flue 7, the water inlet 11 is connected with the closing-in 71 of the flue 7, and condensed water is condensed and mixed with sediment and then is gathered in the water storage tank 1 under the action of the inclined angle of the horizontal flue 7.
As shown in fig. 2, in the embodiment, the water storage tank 1 is tubular, so as to facilitate the assembly, disassembly and structure optimization, the water storage tank 1 is formed by separately forming an upper tank section 13, a middle tank section 14 and a lower tank section 15, the upper part of the middle tank section 14 is connected with the upper tank section 13, and the lower part of the middle tank section 14 is connected with the lower tank section 15, in the embodiment, a tight plug connection manner is adopted, but the protection scope of the present invention is not limited thereto, for example, a threaded connection may also be adopted; the water inlet 11 and the air inlet 131 are arranged on the upper groove section 13, and the water outlet 12 is arranged on the lower groove section 15.
The valves comprise a first valve 3, a second valve 4 and a third valve 5, in the embodiment, the first valve 3 is arranged at the water inlet 11 of the upper tank section 13 to open or close the flow of the condensed water into the water storage tank 1, the second valve 4 is arranged at the water outlet 12 of the lower tank section 15 to open or close the flow of the condensed water out of the water storage tank 1, and the third valve 5 is arranged at the air inlet 131 to control the opening or closing of the air inlet 131; further optimizing the structure, the user can conveniently control the third valve 5, the air inlet 131 is externally connected with the through pipe 132, the through pipe 132 is vertically arranged, through holes are arranged at two ends of the through pipe 132, one end of the through pipe is connected with the air inlet 131, the other end of the through pipe is in contact with air, and the third valve 5 is arranged on the through pipe 132 to control whether the air can enter the air inlet 131 from the through pipe 132.
The liquid level switch 2 is arranged on the upper section 13 of the tank, the liquid level switch 2 is positioned above the first valve 3, and the liquid level switch 2 is electrically connected with the first valve 3, the second valve 4, the third valve 5 and the stirring device 6; specifically, be equipped with singlechip (not shown in the figure) between liquid level switch and first valve 3, second valve 4, third valve 5 and agitating unit 6, give the singlechip by liquid level switch transmission liquid level switch signal, three valves of singlechip control and agitating unit operation, stable in structure, convenient and fast.
The stirring device 6 is arranged in the water storage tank 1, the stirring device 6 is positioned between the first valve 3 and the second valve 4, the specific form of the stirring device 6 can be various, and the embodiment adopts a simpler structure: the stirring device 6 comprises a waterproof motor 61 and a stirring blade 62, the waterproof motor 61 is fixed on the lower section 15 of the tank, a rotating shaft 611 of the waterproof motor 61 is connected with the stirring blade 62, and the stirring blade 62 can stir water and sediments in the water storage tank 1 when rotating, so that the second valve 4 is prevented from being blocked due to sediment deposition.
The present invention is provided with a motor (not shown in the figures) to drive each electrical element, which is a conventional operation for those skilled in the art, and therefore, the detailed description is omitted.
A blockage-preventing drainage method for a flue of a desulfurization induced draft fan comprises the following specific steps:
s1: the first valve 3 is in an open state, the second valve 4 and the third valve 5 are in a closed state, as shown in figure 3, condensed water in the flue 7 flows into the water storage tank 1 from the water inlet 11 and is accumulated in the water storage tank 1, and in the process of water collection, the gas in the water storage tank 1 can be discharged back into the flue 7 through the first valve 3, so that the problem of negative pressure in the water storage tank 1 is avoided;
s2: when the water level in the water storage tank 1 rises to the liquid level switch 2, as shown in fig. 3 to 4, the liquid level switch 2 is started, the first valve 3 is closed, the water inlet 11 is blocked, the stirring device 6 is opened, and the stirring device 6 continuously stirs the sediment accumulated in the water storage tank 1 to enable the sediment to be fused with the accumulated water;
s3: after the water and the sediment are fully stirred, as shown in fig. 6 to 7, the second valve 4 and the third valve 5 are opened, air enters from the air inlet 131, the sediment and accumulated water in the water storage tank are all discharged from the water outlet 12, and the stirring device 6 automatically stops stirring;
s4: as shown in fig. 8, the first valve 3, the second valve 4, and the third valve 5 return to the state of S1 again, and wait for the next drainage.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a desulfurization draught fan flue automatic drainage device, includes catch basin, liquid level switch, valve, the catch basin has water inlet and delivery port, the water inlet is connected with the binding off of flue, the valve includes first valve, second valve and third valve, first valve is located the upper portion of catch basin is in order to open or close the inflow of condensate water in the catch basin, the second valve is located the lower part of catch basin is in order to open or close the outflow of condensate water the catch basin, its characterized in that: the drainage device also comprises a stirring device, wherein the stirring device is arranged in the water storage tank and is positioned between the first valve and the second valve;
the water storage tank is provided with an air inlet, and the third valve is arranged at the air inlet to control the opening or closing of the air inlet;
the liquid level switch is arranged on the water storage tank and is positioned above the first valve, and the liquid level switch is electrically connected with the first valve, the second valve, the third valve and the stirring device.
2. The automatic drainage device for the flue of the desulfurization induced draft fan according to claim 1, characterized in that: the stirring device comprises a waterproof motor and stirring blades, the waterproof motor is fixed in the water storage tank, a rotating shaft of the waterproof motor is connected with the stirring blades, and water and sediments in the water storage tank can be stirred when the stirring blades rotate.
3. The automatic drainage device for the flue of the desulfurization induced draft fan according to claim 1, characterized in that: the air inlet is externally connected with a straight-through pipe, the straight-through pipe is vertically arranged, and the third valve is arranged on the straight-through pipe to control whether air can enter the air inlet from the straight-through pipe or not.
4. The automatic drainage device for the flue of the desulfurization induced draft fan according to claim 1, characterized in that: the water storage tank is tubular and is formed by an upper tank section, a middle tank section and a lower tank section in a split mode, the upper portion of the middle tank section is connected with the upper tank section, the lower portion of the middle tank section is connected with the lower tank section, the water inlet and the air inlet are formed in the upper tank section, and the water outlet is formed in the lower tank section.
5. The automatic drainage device for the flue of the desulfurization induced draft fan according to claim 1, characterized in that: a single chip microcomputer is arranged between the liquid level switch and the first valve, between the liquid level switch and the second valve, between the liquid level switch and the third valve, and between the liquid level switch and the stirring device, a liquid level switch signal is transmitted to the single chip microcomputer, and the single chip microcomputer controls the three valves and the stirring device to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385198.2A CN110296427B (en) | 2019-05-09 | 2019-05-09 | Automatic drainage device for flue of desulfurization draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385198.2A CN110296427B (en) | 2019-05-09 | 2019-05-09 | Automatic drainage device for flue of desulfurization draught fan |
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| Publication Number | Publication Date |
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| CN110296427A CN110296427A (en) | 2019-10-01 |
| CN110296427B true CN110296427B (en) | 2020-10-27 |
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| CN201910385198.2A Active CN110296427B (en) | 2019-05-09 | 2019-05-09 | Automatic drainage device for flue of desulfurization draught fan |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4481935A (en) * | 1982-12-15 | 1984-11-13 | Arkla Industries, Inc. | Flue pipe connection |
| DE19533649A1 (en) * | 1995-09-12 | 1997-03-13 | Wienerberger Systemschornstein | Plinth to support inner pipe of chimney, with condensation drain |
| CN1804465A (en) * | 2006-01-25 | 2006-07-19 | 北京朗新明环保科技有限公司 | Automatic drainage device for flue expansion joint and drainage method thereof |
| CN201074825Y (en) * | 2007-08-17 | 2008-06-18 | 山西太钢不锈钢股份有限公司 | Separation device for dedusting flue |
| JP4510318B2 (en) * | 2001-04-18 | 2010-07-21 | パロマ工業株式会社 | Exhaust tube adapter |
| FR2975756A1 (en) * | 2011-05-27 | 2012-11-30 | David Lachaize | Baffle integrated drain for use in solid fuel domestic stove to collect fumes from combustion chamber and forward fumes to outlet pipe, has wall element operable between escaped fumes guidance position and fumes circulation position |
| CN103438470A (en) * | 2013-08-16 | 2013-12-11 | 上海迪夫格环境科技有限公司 | Wet flue gas flue inner wall condensed liquid collecting device |
| CN104764028A (en) * | 2015-04-03 | 2015-07-08 | 中国能源建设集团山西省电力勘测设计院有限公司 | System for directly discharging acid liquor in single-cylinder chimney including high-position gas flue |
| CN106168380A (en) * | 2016-06-14 | 2016-11-30 | 蒙自矿冶有限责任公司 | The energy saving and environment friendly hydrophobic row of flue gas desulfurization chimney highly effective is become silted up device |
| CN207990650U (en) * | 2018-03-26 | 2018-10-19 | 无锡市新科冶金设备有限公司 | Chimney water trap |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5703938B2 (en) * | 2011-04-26 | 2015-04-22 | 株式会社ノーリツ | Exhaust adapter and combustion apparatus equipped with the same |
| CA2925561A1 (en) * | 2016-03-30 | 2017-09-30 | Ipex Technologies Inc. | Non-return valve for flue gas venting and damper assembly for use therein |
-
2019
- 2019-05-09 CN CN201910385198.2A patent/CN110296427B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4481935A (en) * | 1982-12-15 | 1984-11-13 | Arkla Industries, Inc. | Flue pipe connection |
| DE19533649A1 (en) * | 1995-09-12 | 1997-03-13 | Wienerberger Systemschornstein | Plinth to support inner pipe of chimney, with condensation drain |
| JP4510318B2 (en) * | 2001-04-18 | 2010-07-21 | パロマ工業株式会社 | Exhaust tube adapter |
| CN1804465A (en) * | 2006-01-25 | 2006-07-19 | 北京朗新明环保科技有限公司 | Automatic drainage device for flue expansion joint and drainage method thereof |
| CN201074825Y (en) * | 2007-08-17 | 2008-06-18 | 山西太钢不锈钢股份有限公司 | Separation device for dedusting flue |
| FR2975756A1 (en) * | 2011-05-27 | 2012-11-30 | David Lachaize | Baffle integrated drain for use in solid fuel domestic stove to collect fumes from combustion chamber and forward fumes to outlet pipe, has wall element operable between escaped fumes guidance position and fumes circulation position |
| CN103438470A (en) * | 2013-08-16 | 2013-12-11 | 上海迪夫格环境科技有限公司 | Wet flue gas flue inner wall condensed liquid collecting device |
| CN104764028A (en) * | 2015-04-03 | 2015-07-08 | 中国能源建设集团山西省电力勘测设计院有限公司 | System for directly discharging acid liquor in single-cylinder chimney including high-position gas flue |
| CN106168380A (en) * | 2016-06-14 | 2016-11-30 | 蒙自矿冶有限责任公司 | The energy saving and environment friendly hydrophobic row of flue gas desulfurization chimney highly effective is become silted up device |
| CN207990650U (en) * | 2018-03-26 | 2018-10-19 | 无锡市新科冶金设备有限公司 | Chimney water trap |
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| CN110296427A (en) | 2019-10-01 |
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