CN201344554Y - Cooling device for power station boiler blower - Google Patents
Cooling device for power station boiler blower Download PDFInfo
- Publication number
- CN201344554Y CN201344554Y CNU2008202085254U CN200820208525U CN201344554Y CN 201344554 Y CN201344554 Y CN 201344554Y CN U2008202085254 U CNU2008202085254 U CN U2008202085254U CN 200820208525 U CN200820208525 U CN 200820208525U CN 201344554 Y CN201344554 Y CN 201344554Y
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- Prior art keywords
- station boiler
- boiler blower
- centrifugal
- cooling device
- blower fan
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Abstract
The utility model relates to a cooling device, in particular to a cooling device for a power station boiler blower, which comprises two centrifugal ventilators, silencers and outlet valves. The two centrifugal ventilators are respectively installed on two sides of the power station boiler blower, the air outlets of the two centrifugal ventilators are connected with the air inlets arranged on two sides of the power station boiler blower through the outlet valves, the silencers are respectively installed on the air inlets of the two centrifugal ventilators, the inner cavity of the silencer is communicated with the interior of the centrifugal ventilator, and a filtering screen is installed at the air inlet position of the silencer. The cooling device has the advantages of simple structure, convenient installation and low running noise, and can prevent air from leaking from the power station boiler blower, thereby ensuring the cooling performance of the bearing box and the hydraulic regulating device of the power station boiler blower.
Description
Technical field
The utility model relates to a kind of cooling device, relates in particular to a kind of cooling device that is used for the station boiler blower fan.
Background technology
At present, the cooling device of station boiler blower fan comprises eccentric pipeline, expansion joint, air channel transfer valve and two centrifugal fans, wherein two centrifugal fans are divided into a main operation centrifugal fan, a standby centrifugal fan by system's control requirement.This cooling device is installed in the one-sided of station boiler blower fan, when two centrifugal fans are installed, needs to arrange earlier base position, with foundation bolt two centrifugal fans is fixed on the basis again, and its floor space is more.Simultaneously, the compensation that is connected the position skew when installing of the eccentric pipeline of needs and expansion joint between centrifugal fan and the station boiler blower fan.
There is following defective in this cooling device in installation, production process:
At first, in installation process, operating personnel must accurately confirm the installation site of this cooling device with respect to blower fan, and indicate on relevant drawing.But in the actual installation process,, therefore cause the on-the-spot basis of this cooling device to arrange that the openings in enclosure link position with the station boiler blower fan does not take place in the situation of the same side easily because design, to make link many.
Secondly, two centrifugal fans all are not with silencer, so can produce bigger noise during the centrifugal fan operation.If two centrifugal fans all are with silencer, then whole cooling device will be elongated, and will take more basic place.
At last, centrifugal fan adopts the syndeton of air channel transfer valve, this syndeton not only processing technology is comparatively complicated, and when a centrifugal fan startup job, the air channel transfer valve is to rely on wind-force to switch, and can't seal fully, causes easily and leaks out, cause the bearing housing and the hydraulic regulating device cooling effect of station boiler blower fan to reduce, also can make the impeller generation inverted ventilation phenomenon of another centrifugal fan simultaneously.
The utility model content
The purpose of this utility model is to provide a kind of cooling device that is used for the station boiler blower fan, this cooling device is simple in structure, easy for installation, the operation noise is low, and this cooling device can be avoided the generation of station boiler blower fan air leakage phenomena, thereby has guaranteed the cooling effect of station boiler fan bearing case and hydraulic regulating device.
The utility model is achieved in that
A kind of cooling device that is used for the station boiler blower fan comprises two centrifugal fans, and two centrifugal fans are installed in the side of station boiler blower fan; Described cooling device also comprises silencer and outlet valve, two centrifugal fans are installed in the both sides of station boiler blower fan respectively, the air outlet of two centrifugal fans all links to each other by the air inlet of outlet valve with station boiler fan casing both sides, the air inlet of two centrifugal fans all is equipped with silencer, the silencer inner chamber communicates with the inside of centrifugal fan, and the air inlet place of silencer is equipped with filtering screen.
Described outlet valve comprises adpting flange, pumping board and connecting bolt, the air outlet place of centrifugal fan and the air inlet place of station boiler blower fan all are fixed with an adpting flange, the middle part of two adpting flanges has the corresponding through hole in position, the surface of two adpting flanges has the corresponding screw in several positions, connecting bolt links to each other two adpting flanges by screw, also be provided with pumping board between two adpting flanges, the size of the size of pumping board and adpting flange middle part through hole is complementary, and pumping board can move up and down between two adpting flanges.
Described two centrifugal fan symmetries are installed in the both sides of station boiler blower fan.
The utility model is the improvement to existing station boiler blower fan cooling device.At first, two centrifugal fans directly are installed in the both sides of station boiler blower fan by the outlet valve symmetry, two adpting flanges of outlet valve are separately fixed at centrifugal fan air outlet place and station boiler air inlet place, the screw that connecting bolt passes on the adpting flange directly links to each other centrifugal fan with the station boiler blower fan, thereby do not take basic place, also avoided the use foundation bolt that centrifugal fan is fixed on the basic place, simplified the installation steps of centrifugal fan greatly, made its simple installation.And two centrifugal fans have interchangeability, any centrifugal fan can be installed in any side of station boiler blower fan, have stopped to take place to install the possibility of mistake.Secondly, this cooling device has silencer, the noise that produces in the time of effectively reducing operation.At last, the outlet valve between centrifugal fan and the station boiler blower fan adopts the mode of pumping board, can avoid the generation of station boiler blower fan air leakage phenomena, thereby guarantee the cooling effect of station boiler fan bearing case and hydraulic regulating device.
Description of drawings
Fig. 1 is used for the cooling device structural representation of station boiler blower fan for the utility model;
Fig. 2 is the local structure for amplifying schematic diagram of Fig. 1;
Fig. 3 is that the A-A of Fig. 2 is to schematic diagram;
Fig. 4 is the structural representation of centrifugal fan.
Among the figure: 1 station boiler blower fan, 2 centrifugal fans, 3 outlet valves, 4 silencers, 5 pumping boards, 6 adpting flanges, 7 connecting bolts, 8 screws, 9 filtering screens, B are airflow direction.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2, a kind of cooling device that is used for the station boiler blower fan comprises two centrifugal fans 2, silencer 4 and outlet valve 3.Two centrifugal fan 2 symmetries are installed in the both sides of station boiler blower fan 1.Two centrifugal fan 2 versions are identical, have interchangeability, and promptly any centrifugal fan 2 can be installed in any side of station boiler blower fan 1, can stop to take place in installation process the possibility of mistake like this.
Referring to Fig. 4, the air outlet of two centrifugal fans 2 all links to each other by the air inlet of outlet valve 3 with station boiler blower fan 1 casing both sides, and the air inlet of two centrifugal fans 2 is equipped with silencer 4, and silencer 4 inner chambers communicate with the inside of centrifugal fan 2.Air-flow enters silencer 4 inner chambers along the B direction, and the air inlet place of silencer 4 is equipped with filtering screen 9, and filtering screen 9 can play the effect of impurity screening to the air-flow that enters silencer 4 inner chambers.Therefore, centrifugal fan 2 is in the process of operation, and the noise of generation is little, can compliance with environmental protection requirements.
Above-mentioned outlet valve 3 comprises adpting flange 6, pumping board 5 and connecting bolt 7.The air outlet place of centrifugal fan 2 and the air inlet place of station boiler blower fan 1 all are installed with an adpting flange 6, the middle part of two adpting flanges 6 has the corresponding through hole in position, the surface of two adpting flanges 6 has the corresponding screw 8 in several positions, and connecting bolt 7 links to each other two adpting flanges 6 by screw 8.In the utility model, connecting bolt 7 is selected hexagon socket head cap screw for use, and hexagon socket head cap screw is used nut screwing clamping after passing screw 8 on the adpting flange 6, just finish the connection of two adpting flanges 6, promptly finished being connected between centrifugal fan 2 air outlets and station boiler blower fan 1 air inlet.Also be provided with pumping board 5 between two adpting flanges 6, the size of the size of pumping board 5 and adpting flange 6 middle part through holes is complementary, and pumping board 5 can move up and down between two adpting flanges 6, referring to Fig. 3.
The mode of outlet valve 3 main employing pumping boards 5 limits the air intake of centrifugal fan 2.When a centrifugal fan 2 starts work, the pumping board 5 of another centrifugal fan 2 is inserted down, then isolated the gas communication between another centrifugal fan 2 and the station boiler blower fan 1 fully, its good airproof performance, neither can cause system to leak out, also can not cause another centrifugal fan 2 impellers counter-rotating.
The utility model is simple in structure, and is easy for installation, and the operation noise is low, and this cooling device energy Avoid the generation of For Air Fans of Utility Boilers air leakage phenomena, thereby guaranteed the For Air Fans of Utility Boilers bearing housing Cooling effect with hydraulic regulating device.
Claims (3)
1. cooling device that is used for the station boiler blower fan, comprise two centrifugal fans, two centrifugal fans are installed in the side of station boiler blower fan, it is characterized in that: described cooling device also comprises silencer and outlet valve, two centrifugal fans are installed in the both sides of station boiler blower fan respectively, the air outlet of two centrifugal fans all links to each other by the air inlet of outlet valve with station boiler fan casing both sides, the air inlet of two centrifugal fans all is equipped with silencer, the silencer inner chamber communicates with the inside of centrifugal fan, and the air inlet place of silencer is equipped with filtering screen.
2. the cooling device that is used for the station boiler blower fan according to claim 1, it is characterized in that: described outlet valve comprises adpting flange, pumping board and connecting bolt, the air outlet place of centrifugal fan and the air inlet place of station boiler blower fan all are fixed with an adpting flange, the middle part of two adpting flanges has the corresponding through hole in position, the surface of two adpting flanges has the corresponding screw in several positions, connecting bolt links to each other two adpting flanges by screw, also be provided with pumping board between two adpting flanges, the size of the size of pumping board and adpting flange middle part through hole is complementary, and pumping board can move up and down between two adpting flanges.
3. the cooling device that is used for the station boiler blower fan according to claim 1 is characterized in that: two centrifugal fan symmetries are installed in the both sides of station boiler blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202085254U CN201344554Y (en) | 2008-12-31 | 2008-12-31 | Cooling device for power station boiler blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202085254U CN201344554Y (en) | 2008-12-31 | 2008-12-31 | Cooling device for power station boiler blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201344554Y true CN201344554Y (en) | 2009-11-11 |
Family
ID=41276136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202085254U Expired - Lifetime CN201344554Y (en) | 2008-12-31 | 2008-12-31 | Cooling device for power station boiler blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201344554Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230480A (en) * | 2011-07-08 | 2011-11-02 | 上海交通大学 | Compact single-suction centrifugal fan |
| CN103807187A (en) * | 2014-03-10 | 2014-05-21 | 南通大通宝富风机有限公司 | Centrifugal high-pressure fluidization fan for 135 MW circulating fluidized bed |
| CN105298875A (en) * | 2015-11-10 | 2016-02-03 | 济南金钟电子衡器股份有限公司 | Symmetric interchange structure circulation draught fan |
| CN110242606A (en) * | 2019-05-05 | 2019-09-17 | 贵州航天林泉电机有限公司 | A kind of highly reliable silent ventilator component |
| CN113530862A (en) * | 2021-06-25 | 2021-10-22 | 华能八〇三热电有限公司 | Cooling device for power station boiler fan |
-
2008
- 2008-12-31 CN CNU2008202085254U patent/CN201344554Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230480A (en) * | 2011-07-08 | 2011-11-02 | 上海交通大学 | Compact single-suction centrifugal fan |
| CN102230480B (en) * | 2011-07-08 | 2013-07-03 | 上海交通大学 | Compact single-suction centrifugal fan |
| CN103807187A (en) * | 2014-03-10 | 2014-05-21 | 南通大通宝富风机有限公司 | Centrifugal high-pressure fluidization fan for 135 MW circulating fluidized bed |
| CN103807187B (en) * | 2014-03-10 | 2016-08-17 | 南通大通宝富风机有限公司 | A kind of centrifugal high pressure fluidization fan of 135MW recirculating fluidized bed |
| CN105298875A (en) * | 2015-11-10 | 2016-02-03 | 济南金钟电子衡器股份有限公司 | Symmetric interchange structure circulation draught fan |
| CN105298875B (en) * | 2015-11-10 | 2018-03-09 | 山东金钟科技集团股份有限公司 | A kind of symmetrical interchange structure circulating fan |
| CN110242606A (en) * | 2019-05-05 | 2019-09-17 | 贵州航天林泉电机有限公司 | A kind of highly reliable silent ventilator component |
| CN113530862A (en) * | 2021-06-25 | 2021-10-22 | 华能八〇三热电有限公司 | Cooling device for power station boiler fan |
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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: 20091111 |