CN201680400U - Simple and practical drainage recycling device - Google Patents
Simple and practical drainage recycling device Download PDFInfo
- Publication number
- CN201680400U CN201680400U CN2010200015292U CN201020001529U CN201680400U CN 201680400 U CN201680400 U CN 201680400U CN 2010200015292 U CN2010200015292 U CN 2010200015292U CN 201020001529 U CN201020001529 U CN 201020001529U CN 201680400 U CN201680400 U CN 201680400U
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- Prior art keywords
- air
- drainage
- recycling device
- practical
- wind
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model provides a simple and practical drainage recycling device which is characterized in that: a fan-shaped plate between primary air and smoke is provided with a drainage hole, air is gathered into a centralizing box, the primary air which is leaked towards the direction of the smoke through a drainage pipeline is shunted to hot secondary air, and a valve for adjusting the shunting quantity is arranged on the drainage pipeline. The simple and practical drainage recycling device has the advantage of draining partial usable air leaking towards the direction of the smoke to the hot secondary air and then recycling the usable air by utilizing conventional equipment and the natural large pressure difference between the primary air and the secondary air, thereby reducing air leakage of a three-bin pre-heater and saving energy resources. Moreover, the simple and practical drainage recycling device needs less investment and zero maintenance.
Description
Technical field
The utility model relates to the air retracting device of three fens storehouse preheaters of a kind of swinging, can reclaim wind of three fens storehouse air preheaters of swinging and directly leak part air to the flue gas direction, and the air of recovery imports that to enter boiler furnace behind the hot secondary wind combustion-supporting.
Background technology
The form of leaking out of rotary preheater has directly leaks out and carries the two parts that leak out, carrying leaks out is that rotor rotation is taken the air in the storehouse in the flue gas to, directly leak out is greater than flue gas pressures by air pressure, air bleeds to flue gas in the gap between the rotor that rotates and stationary seal face (fanning strip), the storehouse preheater had three medium channels in three minutes, logical respectively wind, secondary wind and a flue gas.Be called the wind side on preheater one time, secondary wind side and fume side can not form full isolation owing to the continuous rotation of rotor between each passage, rotor all gapped existence between each passage up and down, and directly leaking out of preheater produces thus.For three fens storehouse preheaters, a common wind pressure was more than four times of secondary wind pressure, and wind direction fume side and secondary wind side all can be leaked out, and bled that air quantity does not lose in the secondary wind, and the air quantity that bleeds in flue gas can lose.The utility model is exactly in order to reduce a wind useful air in the flue gas that bleeds.
Summary of the invention
The purpose of this utility model just provides a kind of simple and practical drainage recovery system, to solve wind of preheater that prior art exists big air capacity problem in the flue gas of bleeding, reduces leaking out of preheater.
The technical solution adopted in the utility model is: comprise rotary preheater, it is characterized in that: on wind of described rotary preheater and the fan-shaped sealing plate between the flue gas, be provided with conduction hole, fan-shaped sealing plate one side that should conduction hole is being provided with concentrated case, should concentrate case to be connected with secondary wind side, the valve that is used to regulate shunt volume was housed on this drainage pipe by drainage pipe.
Described conduction hole distributes along the radial direction of described fan-shaped sealing plate, is partial to one time the wind side.
The utility model has the advantages that: utilize the big pressure reduction of conventional equipment and wind and secondary wind, part is leaked available air to flue gas drain into hot secondary wind and utilize again, reduced the total amount of leaking out of three fens storehouse preheaters, save the energy.And have and drop into advantage low, zero maintenance.
Description of drawings
Fig. 1 is general structure schematic diagram of the present utility model (being the view of seeing operating position in kind from the top down);
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 2.
The specific embodiment
Referring to Fig. 1 and Fig. 2, the conduction hole 1 of the utility model by opening on the fan-shaped sealing plate 5 converges to concentrated case 2 with the part air of former leakage in flue gas, and by utilizing in the hot secondary wind of drainage tube 3 guiding, valve 4 is used to regulate drainage flow again.Fig. 2 middle and upper part is a hot junction drainage system schematic diagram, and Fig. 2 middle and lower part is a cold junction drainage system schematic diagram.Because wind of three fens storehouse preheaters is different with secondary wind pressure difference and preheater varies in size, leaking has very big difference to the flue gas air capacity, regulates flow by valve 4 apertures, and valve 4 is electronic or manually all can.Conduction hole 1 distributes along radial direction, is partial to one time the wind side.The air of drainage flows to hot secondary wind along the direction of arrow.By calculating, after three fens conventional storehouse preheaters utilized the utility model, it is about 1.1% that the air leak rate of air curtain of preheater can be fallen on former basis (about 5-6%) again, the saving energy.The utility model is applied on the boiler unit air preheater of joining 600MW, and the air-heater leakage rate is calculated by reducing by 1%, only a blower fan saves energy every day 1370 degree.Among Fig. 3: the arrow N in the drainage tube 3 represents that the air of shunting enters the flow direction of hot secondary wind side; Curve and arrow M along fan-shaped sealing plate 5 one sides are the direction of leaking out; The left side is a wind side P1, and the right side is fume side P2.
Claims (2)
1. simple and practical drainage retracting device, comprise rotary preheater, it is characterized in that: on wind of described rotary preheater and the fan-shaped sealing plate between the flue gas, be provided with conduction hole, fan-shaped sealing plate one side that should conduction hole is being provided with concentrated case, should concentrate case to be connected with secondary wind side, the valve that is used to regulate shunt volume was housed on this drainage pipe by drainage pipe.
2. simple and practical drainage retracting device according to claim 1 is characterized in that: described conduction hole distributes along the radial direction of described fan-shaped sealing plate, is partial to one time the wind side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200015292U CN201680400U (en) | 2010-01-19 | 2010-01-19 | Simple and practical drainage recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200015292U CN201680400U (en) | 2010-01-19 | 2010-01-19 | Simple and practical drainage recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201680400U true CN201680400U (en) | 2010-12-22 |
Family
ID=43345443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200015292U Expired - Lifetime CN201680400U (en) | 2010-01-19 | 2010-01-19 | Simple and practical drainage recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201680400U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949149A (en) * | 2015-06-29 | 2015-09-30 | 南京博沃科技发展有限公司 | Rotary air preheater dust-blocking-prevention synergy sealing method and system |
| CN108019771A (en) * | 2017-10-13 | 2018-05-11 | 南京博沃科技发展有限公司 | It is a kind of that the air preheater directly to leak out is reduced using rotor rolling action |
-
2010
- 2010-01-19 CN CN2010200015292U patent/CN201680400U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949149A (en) * | 2015-06-29 | 2015-09-30 | 南京博沃科技发展有限公司 | Rotary air preheater dust-blocking-prevention synergy sealing method and system |
| CN108019771A (en) * | 2017-10-13 | 2018-05-11 | 南京博沃科技发展有限公司 | It is a kind of that the air preheater directly to leak out is reduced using rotor rolling action |
| CN108019771B (en) * | 2017-10-13 | 2019-06-07 | 南京博沃科技发展有限公司 | It is a kind of to reduce the air preheater directly to leak out using rotor rolling action |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101222 |