CN105928378A - Air cooling element, provided with horizontal wind preventing flow-guiding device, of direct air cooling unit - Google Patents
Air cooling element, provided with horizontal wind preventing flow-guiding device, of direct air cooling unit Download PDFInfo
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- CN105928378A CN105928378A CN201610452235.3A CN201610452235A CN105928378A CN 105928378 A CN105928378 A CN 105928378A CN 201610452235 A CN201610452235 A CN 201610452235A CN 105928378 A CN105928378 A CN 105928378A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses an air cooling element, provided with a horizontal wind preventing flow-guiding device, of a direct air cooling unit in order to overcome negative influences caused by natural horizontal wind on a fan of an air-cooling condenser. The air cooling element comprises a cooling triangle (2) which is arranged on a truss (1); an axial-flow fan (3) is arranged at the bottom surface of the cooling triangle (2); downwards-hung vertical girders (4) are arranged at intervals on a wind cylinder of the axial-flow fan (3); an eight-prism-shaped wind guide cylinder (5) is hung at the lower end of each downwards-hung vertical girder (4); an inclined strut (6) is arranged between each eight-prism-shaped wind guide cylinder (5) and the truss (1); a horizontal wind shielding plate net (7) and a longitudinal wind shielding plate net (8) are arranged under the eight-prism-shaped wind guide cylinders (5); the horizontal wind shielding plate net (7) and the longitudinal wind shielding plate net (8) are arranged crosswise. The air cooling element disclosed by the invention is capable of overcoming the influences of horizontal wind and is also capable of increasing the air input of the fan.
Description
Technical field
The present invention relates to the air cooling unit of a kind of air cooling island of direct air cooling unit, flow through, particularly to a kind of reduction, the air cooling unit that direct air cooled condenser heat transfer efficiency is impacted by Air-Cooling Island blower fan beam wind.
Background technology
Being restricted by water resources shortage, Direct Air-cooled Unit has obtained developing faster in the area of rich coal hydropenia.Direct Air-cooled Unit condenser is made up of several air cooling unit, and each air cooling unit is that equilateral triangle is arranged.Two inclined planes of equilateral triangle arrange finned-tube bundle, sole arrangement axial flow blower.During work, axial flow blower suction cooling air also makes it laterally skim over finned-tube bundle, thus the exhaust steam in steam turbine in finned-tube bundle is condensed into water, and the air after heat absorption is discharged from air cooling unit top.Direct Air-cooled Unit is using surrounding air as the cooling medium of turbine discharge, traditional water-cooled condenser is replaced with air cooling tubes condenser, carry out the heat exchange of air and steam, every air cooling tubes condenser all configures a large-scale axial flow blower, several air cooling tubes condensers and blower fan composition one air cooling platform, i.e. Air-Cooling Island, Air-Cooling Island has more than 40 meter away from ground, Air-Cooling Island is completely exposed in atmospheric environment, is highly prone to the impact of environmental factors.When natural beam wind flows through Air-Cooling Island, the flowing of Air-Cooling Island fan airflow can be produced and interfere, at fan inlet, natural beam wind can upset air flow field, reduce cooling blower and flow to condenser air mass flow, affect the cold heat transfer efficiency of direct air cooled condenser, deteriorate runnability, harm is brought to Air-cooled Unit safe operation, the hot-air simultaneously discharged in Air-Cooling Island edge, can come downwards at fans entrance along windbreak, then again it is sucked back in gas trap by blower fan, form hot air reflux, hot air reflux will reduce the heat exchange efficiency of air cooling tubes condenser, the back pressure making steam turbine raises, affect the properly functioning of unit.The natural beam wind of bigger kinetic energy also unit hot blast cold to former emptyings diffusion can cause obstruction, is even formed and pours in down a chimney.
Summary of the invention
The invention provides a kind of Direct Air-cooled Unit air cooling unit with anti-beam wind guiding device, overcome the adverse effect that air cooling tubes condenser blower fan is brought by nature beam wind, harmful beam wind is converted into the power wind of beneficially blower fan, thus improves the heat exchange efficiency of air cooling tubes condenser.
The present invention is to solve above technical problem by the following technical programs:
A kind of Direct Air-cooled Unit air cooling unit with anti-beam wind guiding device, including truss, truss is provided with cooling triangle, sole arrangement at cooling triangle has axial flow blower, in the fan air drum of axial flow blower, compartment of terrain is disposed with the vertical beam of downward hanging, hang in the lower end of the vertical beam of downward hanging and be connected to eight prism-shaped ventilating ducts, it is provided with raker beam between eight prism-shaped ventilating ducts and truss, transverse gear aerofoil net and the expanded metals that longitudinally keeps out the wind it is provided with in the underface of eight prism-shaped ventilating ducts, transverse gear aerofoil net and the expanded metals that longitudinally keeps out the wind are that cross is laid, the two ends of transverse gear aerofoil net are all stationarily connected on truss with the two ends of the expanded metals that longitudinally keeps out the wind.
The barrel of eight prism-shaped ventilating ducts is spliced on same circumference by eight trapezoid stand column barrel covers, and each trapezoid stand column barrel cover is made up of parallelogram left clapboard, parallelogram right clapboard, trapezoidal baffle upper plate and trapezoidal chin spoiler.
Trapezoidal baffle upper plate and trapezoidal chin spoiler are parallel to each other, and trapezoidal baffle upper plate is 25-80 degree with the angle of horizontal plane.
Trapezoidal baffle upper plate and trapezoidal chin spoiler are the arc that radius of curvature is 2-5 rice.
The present invention, by the natural beam wind of harm air cooling blower fan, is changed into by guide and has boosting acting energy wind to draught fan impeller, i.e. overcome the impact of beam wind, also increase the intake of blower fan.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the eight prism-shaped ventilating ducts 5 of the present invention；
Fig. 3 is that Fig. 2 is at the structural representation overlooked on direction；
Fig. 4 is the trapezoidal baffle upper plate 11 of the present invention and trapezoidal chin spoiler 12 is eight prism-shaped ventilating duct 5 structural representations during arc；
Fig. 5 is that Fig. 4 is at the structural representation overlooked on direction；
Fig. 6 is the fan airflow movement locus figure of existing cooling triangle；
Fig. 7 is the fan airflow movement locus figure of the cooling triangle of the present invention.
Detailed description of the invention
The present invention is described in detail below in conjunction with the accompanying drawings:
A kind of Direct Air-cooled Unit air cooling unit with anti-beam wind guiding device, including truss 1, truss 1 is provided with cooling triangle 2, sole arrangement at cooling triangle 2 has axial flow blower 3, in the fan air drum of axial flow blower 3, compartment of terrain is disposed with the vertical beam 4 of downward hanging, hang in the lower end of the vertical beam 4 of downward hanging and be connected to eight prism-shaped ventilating ducts 5, it is provided with raker beam 6 between eight prism-shaped ventilating ducts 5 and truss 1, transverse gear aerofoil net 7 and the expanded metals 8 that longitudinally keeps out the wind it is provided with in the underface of eight prism-shaped ventilating ducts 5, transverse gear aerofoil net 7 is laid in cross with the expanded metals 8 that longitudinally keeps out the wind, the two ends of transverse gear aerofoil net 7 are all stationarily connected on truss 1 with the two ends of the expanded metals 8 that longitudinally keeps out the wind.
The barrel of eight prism-shaped ventilating ducts 5 is spliced on same circumference by eight trapezoid stand column barrel covers, and each trapezoid stand column barrel cover is made up of parallelogram left clapboard 9, parallelogram right clapboard 10, trapezoidal baffle upper plate 11 and trapezoidal chin spoiler 12.
Trapezoidal baffle upper plate 11 is parallel to each other with trapezoidal chin spoiler 12, and trapezoidal baffle upper plate 11 is 25-80 degree with the angle of horizontal plane.
Trapezoidal baffle upper plate 11 and trapezoidal chin spoiler 12 are the arc that radius of curvature is 2-5 rice.
Wind-proof flow-leading device can superposition up and down, its superposition number of plies can be two layers to six layers, and the spacing of layer and layer is not more than 1.5 meters.The ventilating duct of its pyramid shape can be any pyramid body between five pyramid bodies to 12 pyramid bodies.The guide face of its pyramid shape ventilating duct, can be plane can also be circular shape.
When beam wind is below Air-Cooling Island, flow fast through the beam wind bottom axial flow blower 3, the air-flow of induced-draught fan entrance can be rolled up, so understand the negative pressuren zone producing a horizontal direction near at fans entrance, blower fan ceaselessly aspirates air, also can at fans entrance near produce the negative pressuren zone of a vertical direction, owing to there being the existence of negative pressuren zone, axial flow blower 3 suction airstream can be made to reduce, the air-flow that the biggest volume of beam wind is inhaled also can be the most, it is the fewest that axial flow blower 3 is transported to air cooling unit air throughput, cause air cooling blower fan undercapacity, directly affect the heat transfer effect of air cooling tubes condenser.Upper and lower two water conservancy diversion covers of the eight prism-shaped ventilating ducts 5 of the present invention are between the upper and lower every setting, centre membrane support.Eight prism-shaped ventilating ducts 5 can be processed into an overall distracted taper, it is also possible to being spliced by eight prism-shaped ventilating ducts 5, material therefor metal and nonmetallic materials can.Wind-proof flow-leading device is fixed on bottom axial flow blower 3, it is fan air drum bottom axial flow blower 3, bottom fan air drum outer most edge ring-type on be uniformly distributed and fix eight vertical beams 4, eight prism-shaped ventilating duct 5 tops are fixed with vertical beam 4, eight prism-shaped ventilating ducts 5, equipped with raker beam 6, are fixed by the truss of raker beam 6 with Air-Cooling Island.Bottom truss, vertically fix four supports, fix the transverse gear aerofoil net 7 of decussation and the expanded metals 8 that longitudinally keeps out the wind with support.By transverse gear aerofoil net 7, longitudinally keep out the wind in expanded metals 8 and 5 beam winds importing air cooling unit of eight prism-shaped ventilating ducts.Its air-flow imported divides two parts: a part is to import in air cooling unit by guiding gutter, and another portion is imported beam wind in air cooling unit by guide face.Beam wind band angle gathering sill guides and rushes at fan blade, plays the booster action to draught fan impeller, saves the power consumption of blower fan.Import to the air-flow of negative pressuren zone through guiding gutter, this fraction can supplement continually is rolled up, by beam wind, the negative pressuren zone air-flow siphoned away, the loss caused when reducing negative pressuren zone fan suction air.The cross wind screen that transverse gear aerofoil net 7 is constituted with the expanded metals 8 that longitudinally keeps out the wind, can slow down the flowing of beam wind, increases the air capacity bottom blower fan.
Claims (4)
- null1. the Direct Air-cooled Unit air cooling unit with anti-beam wind guiding device，Including truss (1)，Truss (1) is provided with cooling triangle (2)，Sole arrangement in cooling triangle (2) has axial flow blower (3)，It is characterized in that，In the fan air drum of axial flow blower (3), compartment of terrain is disposed with the vertical beam (4) of downward hanging，Hang in the lower end of the vertical beam (4) of downward hanging and be connected to eight prism-shaped ventilating ducts (5)，It is provided with raker beam (6) between eight prism-shaped ventilating ducts (5) and truss (1)，Transverse gear aerofoil net (7) and the expanded metals (8) that longitudinally keeps out the wind it is provided with in the underface of eight prism-shaped ventilating ducts (5)，Transverse gear aerofoil net (7) is laid in cross with the expanded metals (8) that longitudinally keeps out the wind，The two ends of transverse gear aerofoil net (7) are all stationarily connected on truss (1) with the two ends of the expanded metals (8) that longitudinally keeps out the wind.
- A kind of Direct Air-cooled Unit air cooling unit with anti-beam wind guiding device the most according to claim 1, it is characterized in that, the barrel of eight prism-shaped ventilating ducts (5) is spliced on same circumference by eight trapezoid stand column barrel covers, and each trapezoid stand column barrel cover is made up of parallelogram left clapboard (9), parallelogram right clapboard (10), trapezoidal baffle upper plate (11) and trapezoidal chin spoiler (12).
- A kind of Direct Air-cooled Unit air cooling unit with anti-beam wind guiding device the most according to claim 2, it is characterized in that, trapezoidal baffle upper plate (11) and trapezoidal chin spoiler (12) are parallel to each other, and trapezoidal baffle upper plate (11) is 25-80 degree with the angle of horizontal plane.
- A kind of Direct Air-cooled Unit air cooling unit with anti-beam wind guiding device the most according to claim 2, it is characterised in that trapezoidal baffle upper plate (11) and trapezoidal chin spoiler (12) are the arc that radius of curvature is 2-5 rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452235.3A CN105928378A (en) | 2016-06-22 | 2016-06-22 | Air cooling element, provided with horizontal wind preventing flow-guiding device, of direct air cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452235.3A CN105928378A (en) | 2016-06-22 | 2016-06-22 | Air cooling element, provided with horizontal wind preventing flow-guiding device, of direct air cooling unit |
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| CN105928378A true CN105928378A (en) | 2016-09-07 |
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| CN201610452235.3A Pending CN105928378A (en) | 2016-06-22 | 2016-06-22 | Air cooling element, provided with horizontal wind preventing flow-guiding device, of direct air cooling unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088304A (en) * | 2018-01-18 | 2018-05-29 | 西安热工研究院有限公司 | The air guide device of horizontally disposed small-sized air cooling tower in a kind of radiator tower |
| CN109307439A (en) * | 2018-10-08 | 2019-02-05 | 沈阳仪表科学研究院有限公司 | Direct Air-Cooled coagulator blast regulator |
| CN109323599A (en) * | 2018-10-19 | 2019-02-12 | 华北电力大学 | A kind of direct air cooling unit with internal diversion device |
| CN109974276A (en) * | 2019-04-30 | 2019-07-05 | 宁波奥克斯电气股份有限公司 | A kind of air conditioner chassis and air conditioner |
| US20190285347A1 (en) * | 2018-03-19 | 2019-09-19 | Ormat Technologies, Inc. | Wind guiding vane apparatus |
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| CN103148709A (en) * | 2013-03-20 | 2013-06-12 | 北京奇点时空科技发展有限公司 | Windproof device of direct air-cooling system, windproof control system and windproof control method |
| CN205156661U (en) * | 2015-11-05 | 2016-04-13 | 沈建昆 | Air cooling fan beam wind guiding device |
| CN205748024U (en) * | 2016-06-22 | 2016-11-30 | 国网山西省电力公司电力科学研究院 | Direct Air-cooled Unit air cooling unit with anti-beam wind guiding device |
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| CN201302388Y (en) * | 2008-11-27 | 2009-09-02 | 华北电力大学（保定） | Air intake guiding device of direct air-cooled condenser |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088304A (en) * | 2018-01-18 | 2018-05-29 | 西安热工研究院有限公司 | The air guide device of horizontally disposed small-sized air cooling tower in a kind of radiator tower |
| CN108088304B (en) * | 2018-01-18 | 2024-03-08 | 西安热工研究院有限公司 | Air guiding device of small air cooling tower horizontally arranged in radiator tower |
| US20190285347A1 (en) * | 2018-03-19 | 2019-09-19 | Ormat Technologies, Inc. | Wind guiding vane apparatus |
| WO2019180581A1 (en) * | 2018-03-19 | 2019-09-26 | Ormat Technolgies Inc. | Wind guiding vane apparatus |
| US10871329B2 (en) * | 2018-03-19 | 2020-12-22 | Ormat Technologies, Inc. | Wind guiding vane apparatus |
| CN109307439A (en) * | 2018-10-08 | 2019-02-05 | 沈阳仪表科学研究院有限公司 | Direct Air-Cooled coagulator blast regulator |
| CN109323599A (en) * | 2018-10-19 | 2019-02-12 | 华北电力大学 | A kind of direct air cooling unit with internal diversion device |
| CN109323599B (en) * | 2018-10-19 | 2020-04-10 | 华北电力大学 | Direct air cooling unit with internal flow guide device |
| CN109974276A (en) * | 2019-04-30 | 2019-07-05 | 宁波奥克斯电气股份有限公司 | A kind of air conditioner chassis and air conditioner |
| WO2020221007A1 (en) * | 2019-04-30 | 2020-11-05 | 宁波奥克斯电气股份有限公司 | Air-conditioner chassis and air conditioner |
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Application publication date: 20160907 |
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