CN103292613A - Wind stopping device of cooling tower of thermal power plant - Google Patents
Wind stopping device of cooling tower of thermal power plant Download PDFInfo
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- CN103292613A CN103292613A CN2013102055485A CN201310205548A CN103292613A CN 103292613 A CN103292613 A CN 103292613A CN 2013102055485 A CN2013102055485 A CN 2013102055485A CN 201310205548 A CN201310205548 A CN 201310205548A CN 103292613 A CN103292613 A CN 103292613A
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Abstract
The invention provides a novel-structure wind stopping device of a cooling tower of a thermal power plant. The structure of the wind stopping device is of an overlapped type; and the structure can effectively reduce the space occupied by the wind stopping device and the size of an air inlet can be conveniently adjusted according to the change of an outer environment of the cooling tower, so that the air inlet quantity of the cooling tower is changed, and the normal operation of the cooling tower is guaranteed. The wind stopping device is composed of overlapped wind stopping plates, a wind stopping plate supporting device and a steel wire rope power transmission device. The overlapped wind stopping plates are connected into a whole body through a guide rail; the wind stopping device can slide in a supporting structure through using a steel wire rope to transmit power, so that the wind stopping device can properly adjust the size of the air inlet of the cooling tower according to the change of the outer environment to take the wind stopping and anti-freezing effects and guarantee the normal operation of the cooling tower in different seasons.
Description
Technical field
The present invention relates to a kind of abat-vent, be specifically related to the new structure of a kind of steam power plant cooling tower abat-vent.
Background technology
Because China northeast and North China's meteorological condition in winter are abominable, extension ice phenomenon in various degree all can appear in the cooling tower of winter operation.After the cooling tower air inlet occurs freezing phenomenon, will reduce the incoming air area of air inlet, cause the intake of cooling tower to reduce, influence the cooling effect of cooling tower.Filler in the cooling tower freezes the efficient that will cause filler and reduces, and after filler froze, it is bad that the part filler is drawn, and influences the cooling effect of cooling tower.Freeze the generation of phenomenon, will increase structural loads, serious even can cause the xoncrete structure of body of the tower to destroy, reduce the service life of structure.
The conventional method that phenomenon is frozen in the cooling tower control is to hang deep bead at the herringbone pillar, withstands the cold wind in winter, guarantees the intake of cooling tower and the balance of Ta Nei temperature.But the fast development along with power industry, the Generator Set operation of going into operation in succession, single-machine capacity constantly increases, the also corresponding increase of the trickle area of cooling tower, cause the height of the air inlet of cooling tower to increase, cause the area of this deep bead that hangs big, Heavy Weight hangs and extracts deep bead and need consume very big man power and material.And this deep bead well damage in the process of using, be difficult to guarantee the tightness of abat-vent, can not the effectively preventing cooling tower extension ice phenomenon in winter.Because the intrinsic design feature of this deep bead, it can not adjust the size of air inlet automatically according to the variation of cooling tower external environment condition, thereby changes the intake of cooling tower, improves the efficient of cooling tower fully.
Summary of the invention
The objective of the invention is to carry enough a kind of abat-vent of cooling tower of new structure, this abat-vent adopts stacked structure, this structure can effectively be saved taking up room of abat-vent, and can be according to the variation of cooling tower external environment condition, adjust the size of cooling tower air inlet easily, thereby change the intake of cooling tower, guarantee the normal operation of cooling tower.
The present invention proposes a kind of steam power plant cooling tower abat-vent, it comprises the abat-vent unit, described abat-vent unit is connected on the cooling tower by the annular steel pipe on the cooling tower and C shaped steel guide rail and after-poppet, described abat-vent unit is made up of deep bead, described deep bead comprises relatively independent first daughter board that keeps out the wind, second daughter board that keeps out the wind, the 3rd daughter board that keeps out the wind, the 4th daughter board that keeps out the wind, the described daughter board that keeps out the wind is by single sleeve, guide rail, the duplex sleeve links together, described each the free middle apron wind framework of daughter board that keeps out the wind, framework keeps out the wind in the left side, the right side framework that keeps out the wind links into an integrated entity by the deep bead connector; Also comprise motor, it links by shaft coupling and power transmission shaft, and first kind line wheel and second class line wheel is housed on the power transmission shaft, and the while is equipped with fixed pulley at deep bead supporting construction upper bracket, and first steel wire rope and second steel wire rope are connected the 4th and keep out the wind on the daughter board.
According to preferred embodiment of the present invention, after-poppet cooperates the stepped stacked after-poppet of formation and deep bead combination with deep bead.
According to preferred embodiment of the present invention, after-poppet is clamped on the annular steel pipe of cooling tower by clamping device.
According to preferred embodiment of the present invention, single sleeve all is equipped with in first of the superiors daughter board top and bottom of keeping out the wind in the described daughter board that keeps out the wind, the duplex sleeve is equipped with in the undermost the 4th keep out the wind daughter board upper end, the duplex sleeve is equipped with in middle second daughter board and the 3rd daughter board upper end of keeping out the wind of keeping out the wind, single sleeve is equipped with in the lower end, first daughter board, second daughter board, the 3rd daughter board that keeps out the wind that keeps out the wind that keeps out the wind also comprises the guide rail that is connected between the sleeve, by the slip of sleeve on guide rail four daughter boards that keep out the wind is linked to each other and relative motions successively.
According to preferred embodiment of the present invention, side roller and bottom roller are equipped with in the side of deep bead and bottom.
According to preferred embodiment of the present invention, first steel wire rope successively by surface-based the 4th directive wheel, be installed in the 4th keep out the wind the 3rd directive wheel, fixed pulley on the daughter board, be installed in first keep out the wind first directive wheel on the daughter board, be installed in the 4th keep out the wind on the daughter board second directive wheel be connected the 4th first movable pulley and the 4th on the daughter board daughter board that keeps out the wind that keeps out the wind and link to each other;
Second steel wire rope successively by surface-based the 4th directive wheel be connected the 4th second movable pulley and the 4th on the daughter board daughter board that keeps out the wind that keeps out the wind and link to each other.
Abat-vent of the present invention is by stacked deep bead, and deep bead supporting construction and steel wire rope power transmission are formed.Each abat-vent unit links together by supporting construction and the original annular steel pipe of cooling tower of deep bead, and be welded into by steel plate between each abat-vent unit and the adjacent abat-vent unit as a whole, thereby make abat-vent tightly " parcel " live cooling tower.Each abat-vent unit is again independent, and its motion can not influence the operate as normal of other abat-vent unit.
Each abat-vent unit all is connected to become parts by the guide rail of a plurality of daughter boards that keep out the wind by its both sides, the adjacent daughter board that keeps out the wind can slide freely within the specific limits by guide rail, and several daughter boards that keep out the wind just are connected to become a deep bead that can be free to slide by the guide rail on its both sides like this.The support of this deep bead is born by the supporting construction of abat-vent.Supporting construction is formed as a whole by the C shaped steel guide rail of both sides and steel wire rope fixed pulley support and the deep bead back support steel frame construction on top by the welding means, it can guarantee that the abat-vent unit can slide at fixing track, and can reduce the distortion of deep bead under the blast effect as much as possible.The guide rail that the C shaped steel guide rail of bracing or strutting arrangement moves as deep bead installs roller additional at lower end and the two ends, the left and right sides of deep bead, thereby guarantees that deep bead can slide in the fixed range in C shaped steel guide rail.By cable for transferring power, utilize the daughter board that keeps out the wind of the steel wire rope pulling bottom, the daughter board that keeps out the wind of bottom promotes the daughter board that keeps out the wind on keep out the wind daughter board or the pulling top on top, deep bead is regular in C shaped steel guide rail to move up and down freely thereby make, finish abat-vent changes suitable adjustment cooling tower air inlet according to external environment condition size, regulate intake, guarantee the normal operation of cooling tower.
Description of drawings
Fig. 1 is abat-vent integral installation schematic diagram;
Fig. 2 connects overall schematic between the abat-vent unit;
Fig. 3 installs side schematic view for the abat-vent unit;
Fig. 4 is after-poppet and annular steel pipe connection diagram
Fig. 5 is abat-vent unit principle schematic;
Fig. 6 is the guide rail scheme of installation;
Fig. 7 is the whole pull-up front views of deep bead;
Fig. 8 is the layout drawing of C shaped steel guide rail internal trolley;
Fig. 9 is abat-vent unit transmission system schematic diagram;
Figure 10 is the online canoe of taking turns of steel wire rope;
Figure 11 is second line wheel power transmission line schematic diagram;
Figure 12 is second line wheel power transmission line schematic diagram;
Figure 13 is abat-vent whole unit power transmission line schematic diagram.
Among the figure: 1-C shaped steel guide rail; The 2-cooling tower; 3-annular steel pipe; The A-first abat-vent unit; The B-second abat-vent unit; C-the 3rd abat-vent unit; D-after-poppet and deep bead combination; The 4-after-poppet; The 5-deep bead; The single sleeve of 6-; The 7-guide rail; 8-duplex sleeve; 9-first daughter board that keeps out the wind; 10-second daughter board that keeps out the wind; 11-the 3rd daughter board that keeps out the wind; 12-the 4th daughter board that keeps out the wind; Framework keeps out the wind in the middle of 13; 14-deep bead connector; The 15-framework that keeps out the wind on the right side; The 16-thrust frame; Framework keeps out the wind on the left of the 17-; 18-side roller; 19-bottom roller; The 22-direct current generator; The 23-shaft coupling; 24-first kind line wheel; 25-second class line wheel; The 28-fixed pulley; 29-first steel wire rope; 30 second steel wire ropes; 32-first directive wheel; 33-second directive wheel; 34-the 3rd directive wheel; 35-first movable pulley; 36-second movable pulley; 37-the 4th directive wheel; The 40-clamping device.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further:
As shown in Figure 1, because the area of cooling tower 2 is very big, so the cooling tower abat-vent of the present invention's design adopts modular design idea, the cooling tower abat-vent is designed to one by one separate abat-vent unit, each abat-vent unit is connected on the cooling tower by original annular steel pipe 3 on the cooling tower and C shaped steel guide rail 1 and after-poppet shown in Figure 34 of being fixed on, connection steel plate and upper bracket connection by 1 on adjacent C shaped steel guide rail between each abat-vent unit are as a whole, thereby make the cooling tower abat-vent tightly " parcel " live cooling tower.
Fig. 2 connects overall schematic between the abat-vent unit.By modular thought, the cooling tower abat-vent is divided into several abat-vent unit as the first abat-vent unit A, the second abat-vent unit B and the 3rd abat-vent unit C, by each abat-vent unit is linked together, form an integral body, each abat-vent unit is relatively independent to another abat-vent unit, control respectively, thereby finish the cooling tower abat-vent according to the requirement of the adjusting intake of external environment condition characteristics timely and appropriate discovery, guarantee the efficient normal operation of cooling tower.
Fig. 3 installs side schematic view for the abat-vent unit.Each abat-vent unit tightly relies on the cooling tower, because the deep bead 5 of abat-vent unit is the structure that differs greatly in relative another direction size of a direction, in order to increase the rigidity of structure of deep bead, behind deep bead 5, install after-poppet 4 additional,, reduce the distortion of deep bead under the wind-force effect.Shown in Fig. 3 right side, after-poppet 4 cooperates the stepped stacked after-poppet of formation and deep bead combination D with deep bead 5.As shown in Figure 4, after-poppet 4 clamps original annular steel pipe 3 on the cooling tower by clamping device 40, thereby after-poppet 4 is fixed on the cooling tower.
Shown in Fig. 5-6, the deep bead of each abat-vent unit all is connected to become a deep bead that can be free to slide at relative position by four relatively independent daughter boards that keep out the wind (first keep out the wind daughter board 9, second keep out the wind daughter board 10, the 3rd daughter board 11, the 4th daughter board 12 that keeps out the wind that keeps out the wind) by guide rail 7.Each daughter board structure of keeping out the wind is as second keeping out the wind shown in the daughter board 10 among Fig. 6, and the upper end sleeve is duplex sleeve 8, and the lower end is single sleeve 6, and guide rail 7 is fixed between duplex sleeve 8 and the single sleeve 6.First of the superiors daughter board 9 top and bottom of keeping out the wind all only install single sleeve 6 additional, and the undermost the 4th 12 of the daughter boards that keep out the wind install duplex sleeve 8 additional and do not install guide rail 7 additional.Middle second daughter board 10 and the 3rd daughter board 11 upper ends of keeping out the wind of keeping out the wind install the duplex sleeve additional, and the lower end installs single sleeve additional.The connecting mode of adjacent two daughter boards that keep out the wind is that example describes with adjacent second daughter board 10 and the 3rd daughter board 11 that keeps out the wind that keeps out the wind, second daughter board that keeps out the wind is linked together by the keep out the wind guide rail 7 of daughter board 11 of self duplex sleeve 8 and the 3rd, so just can guarantee second daughter board 10 and the 3rd daughter board 11 relative slip the within the specific limits of keeping out the wind of keeping out the wind, the connecting mode of other adjacent daughter board that keeps out the wind is identical with second the keep out the wind connecting mode of 11 of daughter boards of daughter board 10 and the 3rd that keeps out the wind.Keep out the wind daughter board 12 when being subjected to pulling force when the undermost the 4th, it will move upward along guide rail 7, when the duplex sleeve 8 on the duplex sleeve 8 and the 3rd on it keeps out the wind daughter board 11 contacts, to drive the 3rd daughter board 11 that keeps out the wind moves upward together, equally keep out the wind duplex sleeve 8 on the daughter board 10 when contacting when the 3rd keep out the wind duplex sleeve 8 and second on the daughter board 11, to drive second daughter board 10 that keeps out the wind and move upward together, the motion state of final deep bead is shown in Fig. 5 right side.In like manner, the working method that deep bead falls is identical with the working method of deep bead pull-up, does not give unnecessary details here.
Fig. 7 is the whole pull-up front views of deep bead.In order to make deep bead be convenient to dismounting and change, each daughter board that keeps out the wind is all by the centre framework 13 that keeps out the wind, the left side framework 17 that keeps out the wind, and right side framework 15 3 parts of keeping out the wind connect into as a whole by deep bead connector 14.Simultaneously for deep bead can be stable in motion process motion, installing thrust frame 16 additional except the undermost the 4th other daughter board that keeps out the wind that keeps out the wind the daughter board 12, the keep out the wind thrust of daughter board of bottom at first passes to top and keeps out the wind on the thrust frame 16 of daughter board rather than on the duplex sleeve 8 like this, it is more steady to guarantee that thrust is transmitted, and also can guarantee the coordinated movement of various economic factors between the deep bead daughter board.
Fig. 8 is the layout drawing of C shaped steel guide rail internal trolley.In order to make deep bead 5 in C shaped steel guide rail 1, can and reduce resistance in the deep bead motion process according to fixing movement locus motion, install side roller 18 and bottom roller 19 additional in side and the bottom of deep bead respectively.
Fig. 9 is abat-vent unit transmission system schematic diagram.The power source of this abat-vent comes from direct current generator 22, slow down through decelerator, link by shaft coupling 23 and power transmission shaft, the drive power transmission shaft rotates, first kind line wheel 24 and second class line wheel 25 is housed on the power transmission shaft, simultaneously at deep bead supporting construction upper bracket fixed pulley 28 is housed, fixed pulley 28 is used for changing the pulling direction of steel wire rope, and first steel wire rope 29 and second steel wire rope 30 are connected the 4th and keep out the wind on the daughter board 12.As shown in figure 10, because second steel wire rope 30 on the first kind line wheel 24 is different with the winding direction that the second class line is taken turns first steel wire rope 29 on 25, when direct current generator 22 rotates counterclockwise, first kind line wheel 24 will be done the take-up action, spur the 4th and keep out the wind daughter board 12 to the motion of diagram top, simultaneously second class line wheel 25 will be done the action of unwrapping wire line, by fixed pulley 28, cooperate the 4th daughter board 12 that keeps out the wind to move upward.When direct current generator 22 clockwises rotated, second class line wheel 25 was done the take-up action, by fixed pulley 28, spurred the 4th and kept out the wind daughter board 12 to the motion of diagram below, and first kind line wheel 24 is done the unwrapping wire action simultaneously, cooperated the 4th daughter board 12 that keeps out the wind to move downward.Thereby by the clockwise rotating and rotating counterclockwise of motor, drive the 4th daughter board 12 that keeps out the wind and move downward or upward, finish the action with pull-up put down of deep bead 5.
Shown in Figure 11-13, when direct current generator 22 clockwise rotates, driving second class line wheel 25 clockwise rotates, second class line wheel 25 will spur first steel wire rope 29 and do the take-up action, first steel wire rope 29 is by surface-based the 4th directive wheel 37, be installed in the 4th the 3rd directive wheel 34 that keeps out the wind on the daughter board 12, fixed pulley 28, be installed in first first directive wheel 32 that keeps out the wind on the daughter board 9, be installed in the 4th keep out the wind on the daughter board 12 second directive wheel 33 and be connected the 4th first movable pulley, 35 pullings the 4th on the daughter board 12 daughter board 12 that keeps out the wind that keeps out the wind and move upward, first kind line wheel 24 clockwise rotates simultaneously, do the unwrapping wire action, second steel wire rope 30 is by surface-based the 4th directive wheel 37 and be connected the 4th second movable pulley 36 that keeps out the wind on the daughter board 12, cooperates the 4th daughter board 12 that keeps out the wind to move upward.When direct current generator 22 rotates counterclockwise, driving first kind line wheel 24 rotates counterclockwise, do the take-up action, first kind line wheel 24 spurs the 4th daughter board 12 that keeps out the wind by above-mentioned power transmission line and moves downward, simultaneously second class line wheel rotates counterclockwise, and cooperates the 4th daughter board 12 that keeps out the wind to move downward by above-mentioned power transmission line.By to the 4th motion control of keeping out the wind daughter board 12, realize the pull-up of deep bead 5 of abat-vent unit and the action of putting down.
Claims (6)
1. steam power plant's cooling tower abat-vent, it is characterized in that, comprise the abat-vent unit, described abat-vent unit is connected on the cooling tower by the annular steel pipe (3) on the cooling tower and C shaped steel guide rail (1) and after-poppet (4), described abat-vent unit is made up of deep bead (5), described deep bead comprises relatively independent first daughter board (9) that keeps out the wind, second daughter board (10) that keeps out the wind, the 3rd daughter board (11) that keeps out the wind, the 4th daughter board (12) that keeps out the wind, the described daughter board (9 that keeps out the wind, 10,11,12) by single sleeve (6), guide rail (7), duplex sleeve (8) links together, the described daughter board (9 that keeps out the wind, 10,11,12) each free middle apron wind framework (13), framework (17) keeps out the wind in the left side, the right side framework (15) that keeps out the wind links into an integrated entity by deep bead connector (14); Also comprise motor (22), it links by shaft coupling (23) and power transmission shaft, first kind line wheel (24) and second class line wheel (25) is housed on the power transmission shaft, simultaneously at deep bead supporting construction upper bracket fixed pulley (28) is housed, first steel wire rope (29) and second steel wire rope (30) are connected the 4th and keep out the wind on the daughter board (12).
2. steam power plant according to claim 1 cooling tower abat-vent is characterized in that, after-poppet (4) cooperates with deep bead (5) and forms stepped stacked after-poppet and deep bead combination (D).
3. according to one among the claim 1-2 described steam power plant cooling tower abat-vent, it is characterized in that after-poppet (4) is clamped on the annular steel pipe (3) of cooling tower by clamping device (40).
4. according to one among the claim 1-3 described steam power plant cooling tower abat-vent, it is characterized in that, the described daughter board (9 that keeps out the wind, 10,11,12) single sleeve all is equipped with in first daughter board (9) top and bottom of keeping out the wind of the superiors in, the duplex sleeve is equipped with in the undermost the 4th keep out the wind daughter board (12) upper end, middle second daughter board (10) and the 3rd that keeps out the wind keeps out the wind and the duplex sleeve is housed on the daughter board (11), single sleeve is equipped with in the lower end, first daughter board (9) that keeps out the wind, second daughter board (10) that keeps out the wind, the 3rd daughter board (11) that keeps out the wind also comprises the guide rail (7) that is connected between the sleeve, make four daughter boards (9 that keep out the wind by the slip of sleeve on guide rail, 10,11,12) continuous and relative motion successively.
5. according to one among the claim 1-4 described steam power plant cooling tower abat-vent, it is characterized in that side roller (18) and bottom roller (19) are equipped with in the side of deep bead (5) and bottom.
6. according to one among the claim 1-5 described steam power plant cooling tower abat-vent, it is characterized in that, first steel wire rope (29) successively by surface-based the 4th directive wheel (37), be installed in the 4th keep out the wind the 3rd directive wheel (34), fixed pulley (28) on the daughter board (12), be installed in first keep out the wind first directive wheel (32) on the daughter board (9), be installed in the 4th keep out the wind on the daughter board (12) second directive wheel (33) be connected the 4th first movable pulley (35) and the 4th on the daughter board (12) daughter board (12) that keeps out the wind that keeps out the wind and link to each other;
Second steel wire rope (30) successively by surface-based the 4th directive wheel (37) be connected the 4th second movable pulley (36) and the 4th on the daughter board (12) daughter board (12) that keeps out the wind that keeps out the wind and link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310205548.5A CN103292613B (en) | 2013-05-29 | 2013-05-29 | Steam power plant's cooling tower abat-vent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310205548.5A CN103292613B (en) | 2013-05-29 | 2013-05-29 | Steam power plant's cooling tower abat-vent |
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| CN103292613A true CN103292613A (en) | 2013-09-11 |
| CN103292613B CN103292613B (en) | 2016-01-06 |
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| CN201310205548.5A Expired - Fee Related CN103292613B (en) | 2013-05-29 | 2013-05-29 | Steam power plant's cooling tower abat-vent |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105115314A (en) * | 2015-08-13 | 2015-12-02 | 华北水利水电大学 | Automatic monsoon preventing device for inlet of cooling tower |
| CN105890435A (en) * | 2016-07-05 | 2016-08-24 | 华北电力大学（保定） | Cooling tower wind shielding device combining upper outer lifting type wind shielding plates with lower outer longitudinal oblique shaft type wind shielding plates |
| CN105953635A (en) * | 2016-07-05 | 2016-09-21 | 华北电力大学（保定） | Upper outer lifting and lower outer inclined center shaft combined plate type cooling tower wind shielding device |
| CN106017198A (en) * | 2016-07-05 | 2016-10-12 | 华北电力大学（保定） | Upper outer lifting lower inner inclined off-axis combined plate type wind shielding device of cooling tower |
| CN112524971A (en) * | 2020-06-11 | 2021-03-19 | 哈尔滨润河科技有限公司 | Indirect cooling tower with anti-freezing device |
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| CN202599208U (en) * | 2012-04-05 | 2012-12-12 | 黑龙江龙煤矿业集团股份有限公司双鸭山分公司虹焱热电有限公司 | Adjustable roller blind wind shield board of cooling tower |
| CN202676004U (en) * | 2012-07-09 | 2013-01-16 | 大唐黑龙江发电有限公司哈尔滨第一热电厂 | Wind shield device of cooling tower in heat-engine plant |
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| KR100921674B1 (en) * | 2009-07-02 | 2009-10-19 | 주식회사 하이옥스 | Sealed cooling tower |
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| CN202599208U (en) * | 2012-04-05 | 2012-12-12 | 黑龙江龙煤矿业集团股份有限公司双鸭山分公司虹焱热电有限公司 | Adjustable roller blind wind shield board of cooling tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115314A (en) * | 2015-08-13 | 2015-12-02 | 华北水利水电大学 | Automatic monsoon preventing device for inlet of cooling tower |
| CN105115314B (en) * | 2015-08-13 | 2024-01-02 | 华北水利水电大学 | Automatic quaternary wind preventing device for cooling tower inlet |
| CN105890435A (en) * | 2016-07-05 | 2016-08-24 | 华北电力大学（保定） | Cooling tower wind shielding device combining upper outer lifting type wind shielding plates with lower outer longitudinal oblique shaft type wind shielding plates |
| CN105953635A (en) * | 2016-07-05 | 2016-09-21 | 华北电力大学（保定） | Upper outer lifting and lower outer inclined center shaft combined plate type cooling tower wind shielding device |
| CN106017198A (en) * | 2016-07-05 | 2016-10-12 | 华北电力大学（保定） | Upper outer lifting lower inner inclined off-axis combined plate type wind shielding device of cooling tower |
| CN112524971A (en) * | 2020-06-11 | 2021-03-19 | 哈尔滨润河科技有限公司 | Indirect cooling tower with anti-freezing device |
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| Publication number | Publication date |
|---|---|
| CN103292613B (en) | 2016-01-06 |
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