CN201306935Y - Wind-shielding blade-type wind shield for direct air-cooling condenser - Google Patents
Wind-shielding blade-type wind shield for direct air-cooling condenser Download PDFInfo
- Publication number
- CN201306935Y CN201306935Y CNU2008202166730U CN200820216673U CN201306935Y CN 201306935 Y CN201306935 Y CN 201306935Y CN U2008202166730 U CNU2008202166730 U CN U2008202166730U CN 200820216673 U CN200820216673 U CN 200820216673U CN 201306935 Y CN201306935 Y CN 201306935Y
- Authority
- CN
- China
- Prior art keywords
- wind
- direct air
- pull bar
- unit
- vent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Air-Flow Control Members (AREA)
Abstract
The utility model discloses a wind-shielding blade-type wind shield for a direct air-cooling condenser, comprising a control drive system (1), pull rods, pull rod support frames (2), and a plurality of wind-shielding blades (3), wherein the wind-shielding blades (3) are arranged in turn and are connected into a whole body by the pull rods; the two ends of the pull rod are respectively connected with one end of two steel cables (1.3), and the other ends of the two steel cables (1.3) are respectively wound on two rotating shafts (1.2) to be fixed. When being used, the control drive system drives the pull rod to make the wind-shielding blades to turnover to be horizontal or vertical, thus achieving the goal of opening and closing the channel between the two pull rod support frames. The utility model can reduce the capital cost of the direct air-cooling condenser and run more economically.
Description
(1) technical field
The utility model relates to a kind of direct air cooled condenser, is applicable to the heat power station and the turbine direct air cooled condenser system of water scarcity.
(2) background technology
It is made up of the direct air cooled condenser system heat-exchanging tube bundle, blower fan group, steel platform, windbreak, jet chimney, condensing water conduit, vacuum lead, water ring vacuum pump (stream-jet ejector) and electric control system.Direct air cooled condenser is dried by the tube bank of blower fan heat exchanging, and the steam that generator/turbine is come is condensed into water in heat-exchanging tube bundle, moves in design load with the steady pressure jar that keeps sending out control group/turbine unit.But at northern area, when unit is in winter operation, particularly during winter underload or winter unit starting operation, steam load is lower than unit and designs minimum antifreeze load.At this moment, even blower fan is all stopped transport, but air cooling tubes condenser generally is in tens meters high places, because the effect such as wind of pulling out of device such as windbreak, the above wind speed of 0.4m/s is still arranged between air cooling heat-exchanging tube bundle fin, and environment temperature is far below 0 ℃ at this moment, and heat transfer temperature difference is big, and steam flow is very little, after steam enters in the heat-transfer pipe, just condensed fully on following current tube bank top, its condensate water is in deadweight effect lower edge tube wall flows downward process, again constantly and the cool ambient air heat exchange, its degree of supercooling constantly increases, finally in tube bank bottom or the tube bank header frozen of condensing, even, cause serious consequence with the heat-transfer pipe bursting by freezing.
At present, prevent that air cooling tubes condenser from freezing the employing measure and mainly containing: determine that the minimum antifreeze load of tube bank, the suitable K/D of employing are provided with separation valve door than (concurrent-countercurrent tube bank quantity ratio) structure, VFC rotation speed of fan, jet chimney.Wherein more effectively separation valve door is set at jet chimney, when unit load less than design during antifreeze load, suitable valve-off, the operation of cut-out heat-sink unit, to import in the vapor collection in the residue heat-sink unit, increase also makes these unit heat exchange loads be higher than minimum antifreeze load, prevents that effectively air cooling tubes condenser from freezing the generation of situation, ensures the normal operation of Air-cooled Unit.But the steam isolating door costs an arm and a leg and utilization rate is not high, is example with the 2X600MW unit, and general design has 16 row air cooling heat exchange units, according to factory site winter temperature difference, is provided with 8～14 steam isolating doors, and total price is more than ten million yuan.But valve wherein over half only used in unit winter starting operation the same day, and other several years even time decades all are in idle state.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of direct air cooled condenser cost of investment, more economical vane type abat-vent that keeps out the wind that is used for direct air cooled condenser of operation of reducing is provided.
The purpose of this utility model is achieved in that a kind of vane type abat-vent that keeps out the wind that is used for direct air cooled condenser, comprise control-driven system, pull bar and pull bar bracing frame and the some blades that keep out the wind, some blade order of keeping out the wind are arranged and are linked into an integrated entity by pull bar, the pull bar two ends are connected with an end of two wireropes respectively, and the other end of two wireropes is also fixed in two rotating shafts respectively.
The utility model is used for the vane type abat-vent that keeps out the wind of direct air cooled condenser, and described control-driven system also includes the two positions controller, and two rotating shafts link to each other with the two positions controller respectively.
Compare with conventional art, the utility model technology has the following advantages:
1, reduces cost of investment
With Air-cooled Unit heat exchange unit air intake passage sealing, can reduce the minimum antifreeze safe load of unit to greatest extent, when guaranteeing unit safety operation, can reduce the use amount (even can) of steam isolating door, to reduce cost of investment.Sending out the control group with the 2X600MW air cooling is example, at cold district, cost-saved more than 10,000,000 yuans.
2, operation is more economical
Conventional art, a steam isolating door of installation is closed, and just cut off a row heat exchange unit, and every row heat exchange unit is made up of several fan units, can bring the excessive problem of unit load adjusting range, is unfavorable for the economical operation of unit.Use the utility model technology, abat-vent is installed on each fan unit, and abat-vent can enter DCS control, can only cut off the air intake passage of certain fan unit as required, the load adjusting range that is about to unit controls to the fan unit rank, improves the economy of unit operation.
To sum up, abat-vent of the present utility model can be installed in air duct below, air duct top or air cooling heat-exchanging tube bundle below.When unit winter operation, particularly underload or startup operation, block by of the air intake passage sealing of control abat-vent the proper proportion heat exchange unit, guaranteeing that heat-exchanging tube bundle is calm passes through, thereby under the situation of not destroying system, significantly reduce the heat exchange effect of heat-exchanging tube bundle, the minimum antifreeze load of unit is reduced to minimum level, guarantee in the power plant safety operation, the use amount of minimizing steam isolating (even can), reduce cost of investment greatly.
(4) description of drawings
Fig. 1 is used for the vane type abat-vent structural representation that keeps out the wind of direct air cooled condenser for the utility model.
Fig. 2 is used for the operation principle schematic diagram of the vane type abat-vent that keeps out the wind of direct air cooled condenser for the utility model.
Reference numeral among the figure:
Control-driven system 1
Pull bar and pull bar bracing frame 2
Positioner 1.1
Rotating shaft 1.2
Wirerope 1.3
Control appliance 1.4.
(5) specific embodiment
Referring to Fig. 1～2, the utility model is used for the vane type abat-vent that keeps out the wind of direct air cooled condenser, mainly is made up of control-driven system 1, pull bar and pull bar the bracing frame 2 and some blades 3 that keep out the wind etc.Wherein control-driven system 1 is identical with structure one.Control-driven system 1 mainly is made up of positioner 1.1, rotating shaft 1.2, wirerope 1.3 and control appliance 1.4 etc.Described pull bar and pull bar bracing frame 2 have two, are symmetrically arranged, and rotating shaft 1.2 also has two, the front and back symmetric arrangement, and two rotating shafts 1.2 link to each other with two positions controller 1.1 respectively, and positioner 1.1 links to each other with control appliance 1.4.The described blade 3 of keeping out the wind is made by non-ventilating materials such as sheet irons, and some blades 3 orders of keeping out the wind are arranged and linked into an integrated entity by pull bar.The pull bar two ends are connected with an end of two wireropes 1.3 respectively, and the other end of two wireropes 1.3 is also fixed in two rotating shafts 1.2 respectively.During use, by control-driven system pulling pull bar, make the blade flip-flop movement that keeps out the wind, one-tenth level or vertical shape as shown in Figure 1, 2, reach the purpose of passage between unlatching/sealing two pull bar bracing frames.
The manual operation at the scene of above-mentioned drive system, electric operating, steam-operating operation also can insert control signal unit DCS and participate in control.
Manual operation is achieved in that the pull bar of blade as long as pulling is kept out the wind, and rotates and the keep out the wind angle of blade of conversion, can reach the purpose of passage between unlatching/sealing two pull bar bracing frames equally.
Electric operating is achieved in that referring to Fig. 1, starts electronic positioner rotating shaft is rotated, and the pull bar of blade thereby pulling is kept out the wind rotates and the keep out the wind angle of blade of conversion, reaches the purpose of passage between unlatching/sealing two pull bar bracing frames.
Pneumatic operation is achieved in that referring to Fig. 1, change abat-vent into realize rotating shaft by air-operated positioner rotation by electronic positioner, the pull bar of blade thereby pulling is kept out the wind, rotate and the keep out the wind angle of blade of conversion, reach the purpose of passage between unlatching/sealing two pull bar bracing frames.
Control signal is inserted unit DCS participation control to be achieved in that referring to Fig. 1,2, the switching signal of the drive unit of abat-vent is inserted Air-cooled Unit DCS control system, during unit operation, as required, by the monitor coagulation coolant-temperature gage, vacuumize operational factor such as temperature and judge whether to reduce certain heat exchange unit heat exchange load, the operation of remote control control abat-vent solves unit preventing freeze in winter problem.
Claims (3)
1, a kind of vane type abat-vent that keeps out the wind that is used for direct air cooled condenser, it is characterized in that: described abat-vent comprises control-driven system (1), pull bar and pull bar bracing frame (2) and the some blades that keep out the wind (3), some blades that keep out the wind (3) order is arranged and is linked into an integrated entity by pull bar, the pull bar two ends are connected with an end of two wireropes (1.3) respectively, and the other end of two wireropes (1.3) is gone up and fixed around two rotating shafts (1.2) respectively.
2, a kind of vane type abat-vent that keeps out the wind that is used for direct air cooled condenser according to claim 1, it is characterized in that: described control-driven system (1) also includes two positions controller (1.1), and two rotating shafts (1.2) link to each other with two positions controller (1.1) respectively.
3, a kind of vane type abat-vent that keeps out the wind that is used for direct air cooled condenser according to claim 1 and 2, it is characterized in that: the described blade that keeps out the wind (3) is made by sheet iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202166730U CN201306935Y (en) | 2008-11-12 | 2008-11-12 | Wind-shielding blade-type wind shield for direct air-cooling condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202166730U CN201306935Y (en) | 2008-11-12 | 2008-11-12 | Wind-shielding blade-type wind shield for direct air-cooling condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306935Y true CN201306935Y (en) | 2009-09-09 |
Family
ID=41099398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202166730U Expired - Fee Related CN201306935Y (en) | 2008-11-12 | 2008-11-12 | Wind-shielding blade-type wind shield for direct air-cooling condenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306935Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252532A (en) * | 2011-06-22 | 2011-11-23 | 哈尔滨空调股份有限公司 | Electric wind-shielding attemperator |
| CN102829647A (en) * | 2012-09-20 | 2012-12-19 | 哈尔滨工业大学（威海） | Finned-tube bundle freezing prevention device for direct air-cooling unit of power station |
| CN108507369A (en) * | 2018-05-31 | 2018-09-07 | 西安热工研究院有限公司 | A kind of antifreeze integrating device of water conservancy diversion for Direct Air-Cooled island |
-
2008
- 2008-11-12 CN CNU2008202166730U patent/CN201306935Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252532A (en) * | 2011-06-22 | 2011-11-23 | 哈尔滨空调股份有限公司 | Electric wind-shielding attemperator |
| CN102252532B (en) * | 2011-06-22 | 2013-01-09 | 哈尔滨空调股份有限公司 | Electric wind-shielding attemperator |
| CN102829647A (en) * | 2012-09-20 | 2012-12-19 | 哈尔滨工业大学（威海） | Finned-tube bundle freezing prevention device for direct air-cooling unit of power station |
| CN108507369A (en) * | 2018-05-31 | 2018-09-07 | 西安热工研究院有限公司 | A kind of antifreeze integrating device of water conservancy diversion for Direct Air-Cooled island |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201653252U (en) | Energy-saving type closed type cooling tower | |
| CN103712473A (en) | Boosted-ventilation direct air cooling tower | |
| CN109708487B (en) | Air cooling island freezing state online monitoring method | |
| CN201306935Y (en) | Wind-shielding blade-type wind shield for direct air-cooling condenser | |
| CN103335445B (en) | System and method for utilizing gas-driven compressor waste heat | |
| CN101776400A (en) | Forced-draft direct water film evaporative air-cooling condensor system | |
| CN206724376U (en) | It is a kind of to save and the powerful air-cooler of wind-force | |
| CN2929622Y (en) | Direct air cooling condensor with flow guide wind-proof device for power station | |
| CN101419023B (en) | Direct air cooling steam condenser with air intake passage switching control function under wind pipe | |
| CN105674760A (en) | Joint air-cooling system and control method | |
| CN201306934Y (en) | Wind-shielding blade-type wind shield for direct air-cooling condenser | |
| CN101419022B (en) | Direct air cooling steam condenser with air intake passage switching control function under heat exchange tube bundle | |
| CN202024625U (en) | Indirect air cooling system capable of changing flow direction of cooling water | |
| CN201306931Y (en) | Direct air-cooling condenser with function on controlling the opening and closing of air inlet channel under heat exchange tube bundle | |
| CN201306932Y (en) | Direct air-cooling condenser with function on controlling the opening and closing of air inlet channel on air cylinder | |
| CN201297865Y (en) | Direct air cooling condenser with function to control the open and close of the air inlet channel below air duct | |
| CN202216570U (en) | Direct air-cooling system with in-column isolating valve | |
| CN2766230Y (en) | Resistance liquid cooling apparatus for water resistance test control cubicle for generator | |
| CN208967903U (en) | The single heating heating system of wind power direct-driven formula | |
| CN101419024B (en) | Direct air cooling steam condenser with air intake passage switching control function above wind pipe | |
| CN201488165U (en) | Solar central air conditioner | |
| CN208635589U (en) | A kind of antifreeze integrating device of water conservancy diversion for Direct Air-Cooled island | |
| CN212565840U (en) | Accurate control system of phase change heat exchanger working medium side temperature | |
| CN207163253U (en) | A kind of direct air cooled condenser heat-insulation system | |
| CN103712472A (en) | Boosted air cooling tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHUANGLIANG ECO-ENERGEY SYSTEMS CO.,LTD. Free format text: FORMER OWNER: SHUANGLIANG AIR CONDITIONING EQUIPMENT CO LTD, JIANGSU Effective date: 20100909 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100909 Address after: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Patentee after: Shuangliang Energy Saving System Co., Ltd. Address before: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Patentee before: Shuangliang Air Conditioning Equipment Co., Ltd., Jiangsu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20161112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |