CN201306934Y - 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
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- CN201306934Y CN201306934Y CNU2008202166726U CN200820216672U CN201306934Y CN 201306934 Y CN201306934 Y CN 201306934Y CN U2008202166726 U CNU2008202166726 U CN U2008202166726U CN 200820216672 U CN200820216672 U CN 200820216672U CN 201306934 Y CN201306934 Y CN 201306934Y
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- guide rail
- wind
- rotating shaft
- direct air
- control
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Abstract
The utility model discloses a wind-shielding blade-type wind shield for a direct air-cooling condenser, comprising a control drive system (1), two guide rails, two guide rail support frames, and wind-shielding blades (3), wherein the control drive system (1) comprises two rotating shafts (1.2) and steel cables (1.3); the two guide rails and the two guide rail support frames are symmetrically arranged left and right; the two rotating shafts are symmetrically arranged back and front; the two sides of the wind-shielding blade (3) are arranged in the guide rails and the guide rails of the guide rail two support frames (2); one end of the wind-shielding blade (3) is connected with the steel cables (1.3), and the other end thereof is wound on one rotating shaft (1.2) to be fixed, and the steel cables (1.3) are wound on the other rotating shaft (1.2) to be fixed. 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 board-like abat-vent of keeping out the wind of direct air cooled condenser that is used for of operation of reducing is provided.
The purpose of this utility model is achieved in that a kind of board-like abat-vent of keeping out the wind of direct air cooled condenser that is used for, comprise control-driven system, guide rail and guide rail supporting frame and deep bead, described control-driven system comprises rotating shaft and wirerope, described guide rail and guide rail supporting frame have two, be symmetrically arranged, rotating shaft also has two, the front and back symmetric arrangement, the deep bead both sides place in the guide rail of guide rail and guide rail supporting frame, deep bead one end is connected with wirerope, the other end is also fixed in a rotating shaft, and wirerope is also fixed in another rotating shaft.
The utility model is used for the board-like abat-vent of keeping out the wind of direct air cooled condenser, and described control-driven system also includes two drive motors or two pneumatic actuation equipment, and described two rotating shafts link to each other with two drive motors or two pneumatic actuation equipment 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 board-like abat-vent structural representation of keeping out the wind of direct air cooled condenser for the utility model.
Fig. 2 is used for the operation principle schematic diagram of the board-like 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
Guide rail and guide rail supporting frame 2
Drive motors 1.1
Rotating shaft 1.2
Wirerope 1.3
Control appliance 1.4.
(5) specific embodiment
Referring to Fig. 1, the utility model is used for the board-like abat-vent of keeping out the wind of direct air cooled condenser, mainly is made up of control-driven system 1, guide rail and guide rail supporting frame 2 and deep bead 3.Control-driven system 1 mainly is made up of drive motors 1.1, rotating shaft 1.2, wirerope 1.3 and control appliance 1.4 etc.Described guide rail and guide rail supporting 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 drive motors 1.1 respectively, and drive motors 1.1 links to each other with control appliance 1.4.Described deep bead 3 is made by non-ventilating materials such as canvas, sheet irons.Deep bead 3 both sides place in the guide rail of guide rail and guide rail supporting frame 2, and deep bead 3 one ends are connected with wirerope 1.3, and the other end is also fixed in a rotating shaft 1.2, and wirerope 1.3 is also fixed in another rotating shaft 1.2.During use, move, reach the purpose of passage between unlatching/sealing two guide rail supporting frames by the guide rail of drive system pulling deep bead along guide rail supporting frame 2.And when air intake passage was opened, deep bead all twisted in the rotating shaft, as shown in Figure 2.
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 referring to Fig. 1, as long as the wirerope that pulling is connected with deep bead just can drag deep bead, reaches the purpose of passage between unlatching/sealing two pull bar bracing frames.
Electric operating is achieved in that referring to Fig. 1, start drive motors rotating shaft is rotated, thereby the wirerope that pulling is connected with deep bead just can drag deep bead, 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 rotation that pneumatic actuation equipment is realized rotating shaft by drive motors, thereby the wirerope that pulling is connected with deep bead just can drag deep bead, reaches 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 board-like abat-vent of keeping out the wind of direct air cooled condenser that is used for, it is characterized in that: described abat-vent comprises control-driven system (1), guide rail and guide rail supporting frame (2) and deep bead (3), control-driven system (1) comprises rotating shaft (1.2) and wirerope (1.3), described guide rail and guide rail supporting frame (2) have two, be symmetrically arranged, rotating shaft (1.2) also has two, the front and back symmetric arrangement, deep bead (3) both sides place in the guide rail of guide rail and guide rail supporting frame (2), deep bead (3) one ends are connected with wirerope (1.3), the other end is gone up and is fixed around a rotating shaft (1.2), and wirerope (1.3) is gone up and fixed around another rotating shaft (1.2).
2, a kind of direct air cooled condenser that has control air intake passage switching function according to claim 1, it is characterized in that: described control-driven system (1) also includes two drive motors (1.1) or two pneumatic actuation equipment, and described two rotating shafts (1.2) link to each other with two drive motors (1.1) or two pneumatic actuation equipment respectively.
3, a kind of direct air cooled condenser that has control air intake passage switching function according to claim 1 and 2, it is characterized in that: described deep bead (3) is made by canvas or sheet iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202166726U CN201306934Y (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 |
|---|---|---|---|
| CNU2008202166726U CN201306934Y (en) | 2008-11-12 | 2008-11-12 | Wind-shielding blade-type wind shield for direct air-cooling condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306934Y true CN201306934Y (en) | 2009-09-09 |
Family
ID=41099397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202166726U Expired - Fee Related CN201306934Y (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) | CN201306934Y (en) |
Cited By (2)
| 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 |
| CN103512381A (en) * | 2013-09-25 | 2014-01-15 | 华为技术有限公司 | Two-phase cooling device |
-
2008
- 2008-11-12 CN CNU2008202166726U patent/CN201306934Y/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 |
| CN103512381A (en) * | 2013-09-25 | 2014-01-15 | 华为技术有限公司 | Two-phase cooling device |
| CN103512381B (en) * | 2013-09-25 | 2016-03-30 | 华为技术有限公司 | A kind of two-phase cooling device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20161112 |