CN1069128C - Air-blower cooling tower driven by secondary jetting gravitational backwater - Google Patents
Air-blower cooling tower driven by secondary jetting gravitational backwater Download PDFInfo
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- CN1069128C CN1069128C CN 97107721 CN97107721A CN1069128C CN 1069128 C CN1069128 C CN 1069128C CN 97107721 CN97107721 CN 97107721 CN 97107721 A CN97107721 A CN 97107721A CN 1069128 C CN1069128 C CN 1069128C
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Abstract
The present invention relates to a novel atomization propulsion ventilation cooling tower. One or more than one over-port atomization propulsion atomizer is arranged on the middle part and the lower part of the tower (an under-port atomization propulsion atomizer and a transverse-port atomization propulsion atomizer which are positioned on the top part can also be used). The present invention is provided with an air inlet barrel and a sprinkling sieve plate externally for carrying out first injection to lower the temperature of circulating water. A water collecting tank is arranged on the inner wall of the tower and is orderly communicated with a gravity water return pipe, a water spray pipe and a low pressure nozzle to carry out second injection cooling, and current potential energy can be fully utilized. On the basis of atomization ventilation with a low voltage high flow rate, a large caliber and a large gas-water ratio, the present invention further improves the temperature reduction of the tower, reduces sprinkling noise, enlarges sprinkling density, lowers the manufacturing cost of the tower, and enables atomization ventilation cooling towers to achieve excellent performance.
Description
A kind of atomizing propulsion aeration cooling tower is a cooling medium with the air, drives spray-propelling atomizer with low pressure fluid power and realizes spraying ventilation cool cycles hot water.The forced draught cooling tower that belongs to no filler, unregulated power blower fan.Be used for departments such as electric power, metallurgy, petrochemical industry, light textile, refrigeration.
Existing filler, electric power fan type forced draught cooling tower exist that the blower fan power consumption is big, noise is big, fragile; Filler is easily clogged, cold effect is unstable, the water that wafts is many, safeguard problem such as difficulty.Be devoted to both at home and abroad that blower fan and filler advance and principle on improvement.Spray-type cooling tower utilizes pressure nozzle that hot water atomized, injection cold wind are made both heat exchanges, realizes hot water cooling (seeing special public clear 55-14356 of Japan Patent and 55-17316).But in principle, be difficult to reach the gas-water ratio of international temperature drop standard-required with the mass ratio of induced-to-inducing air of water smoke injection cold wind, thereby cooling-down effect is relatively poor.And there are shortcomings such as work water pressure two, energy consumption are big, nozzle diameter Xiao Yi obstruction.
Chinese invention patent " spray-propelling atomizer " (ZL90106170.0) utilizes the centrifugal supercharging principle of super gravity field to realize the low pressure heavy caliber, and the spraying of big flow makes fluid power blower fan gas-water ratio reach 0.8～1.20.Thereby for the spraying ventilation cooling provides a kind of novel jet flow element.Chinese invention patent " atomizing propulsion aeration cooling tower " (ZL90106174.0) is installed this fluidic, has realized that the low pressure spraying advances the forced ventilation cooling, and with this existing cooling tower has been transformed.But in use there is the phase mutual interference between sprayer unit, problem such as hot air reflux, trickle inequality, the underwater sound are big, wall stream is serious.Chinese patent " New Spraying Ventilation Cooling Tower " (ZL96233273.9) has been set up air intake tube, trickle sieve plate etc. on above-mentioned patent basis be improved performance.At present, also there are shortcomings such as wall stream, trickle inequality, voice is big.
The objective of the invention is further to improve foregoing invention, a kind of atomizing propulsion aeration cooling tower that utilizes gravity water return to carry out secondary injection is provided.The potential energy that it will fall water after rise makes full use of, and has further strengthened the heat and mass effect between the air water, has improved gas-water ratio, make cooling-down effect desirable more, also overcome the influence of wall stream simultaneously, reduced the trickle voice, it is more even that water droplet is distributed, spray density increases, the cost that has reduced.
Purpose of the present invention realizes with following mode.
First kind of gravity water return secondary spraying aerating and cooling tower, it is used for low small-sized tower of body of the tower and civilian tower.Have tower body 7 and support water inlet pipe 3 is arranged in pylon 2 under it, the tower, outlet pipe 16 that ponding dish 1 and Hui Dingqi bottom and water route are communicated with, the tower wall has air inlet duct 14 one time, cat head has chimney fan 9 and water collection device 8.It is characterized in that being provided with in the tower upper spraying type spray-propelling atomizer 6 that (contains) more than and link to each other with water inlet pipe (3), and each device places in the air intake tube 5 that air inlet duct 14 wind paths in air port, a bottom surface and below are communicated with, trickle sieve plate 4 is established in the air intake tube outside, both, and are fixed on the tower body for being connected as a single entity with connector.Tower body 7 inwalls are established the water storage tank 10 that has the discharge orifice, and (contain one) more than one circumferential sparge pipe 15 is established in ponding dish 1 top, bottom, and establish the vertical gravity water return pipe 11 that (contains) more than a discharge orifice of water storage tank 10 is communicated with sparge pipe.Adorn on the sparge pipe and go up spray low-pressure water nozzle 13 more than one, between water storage tank and tower wall, be equipped with leakproof seal between return pipe and discharge orifice.(operating) water nozzle 13 injection directions are over against the air inlet of air intake tube 5.Trickle sieve plate top tower body sidewall is offered secondary air road 12.
Second kind of air-blower cooling tower driven by secondary jetting gravitational backwater is applicable to the tower of high tower body.Its structure is divided by beyond the following difference, and all the other and above-mentioned first kind of cooling tower are identical; 1. below the trickle sieve plate 4 of the sprayer unit 6 at tower center, set up gas skirt 19, adorn on the sparge pipe below this gas skirt 15 more than one on spray low-pressure water nozzle or low pressure spray-propelling atomizer 18, its spray direction is over against gas skirt.Trickle sieve plate top tower body sidewall can be offered secondary air road 12.Gas skirt adopts conical cylindrical or square.Also can be with above-mentioned trickle sieve plate 4 cancellations, this place is made as water storage tank, reinstalls water pipe, playpipe, nozzle more in turn, carries out repeatedly gravity water return and sprays.Structure is described in detail as follows: a kind of gravity water return atomizing propulsion aeration cooling tower, and have tower body (7) and support pylon (2) under it, water inlet pipe (3) is arranged, ponding dish (1) and fix its bottom and outlet pipe (16) that the water route is communicated with in the tower; The tower wall has an air inlet duct (14); Cat head sets out air duct (9) and water aspirator (8), it is characterized in that Ta Nei establishes the upper spraying type spray-propelling atomizer 6 that (contains) more than and link to each other with water inlet pipe 3, below it, set up gas skirt (19), between device 6 outsides and tower wall, establish the water storage tank 10 that has the discharge orifice, (contain one) more than one circumferential sparge pipe 15 is established in ponding dish 1 top, bottom, and establish the vertical gravity water return pipe 11 that (contains) more than with discharge orifice and sparge pipe connection, adorn on the sparge pipe and go up spray low-pressure water nozzle 13 more than one, between water storage tank and tower wall, be provided with sealing between return pipe and discharge orifice.
The third air-blower cooling tower driven by secondary jetting gravitational backwater.Be applicable to that the temperature drop requirement is low, tower body requires short cooling tower.It has tower body 7 and supports pylon 2 under it, the outlet pipe 16 that has water inlet pipe 3, ponding dish 1 and Hui Dingqi bottom and water route to be communicated with in the tower, the tower wall has air inlet duct 14, cat head sets out air duct 9, water collection device 8, it is characterized in that in chimney fan 9, establishing the down-jetting type spray-propelling atomizer 6 that links to each other with water inlet pipe 3 that (contains) more than, and establish trickle sieve plate 4 at the tower middle part; Tower body 7 inwalls are established the water storage tank 10 that has the discharge orifice, (contain one) more than one circumferential sparge pipe 15 is established in ponding dish 1 top, bottom, and establish the vertical gravity water return pipe (11) that (contains) more than a discharge orifice is communicated with sparge pipe, adorn on the sparge pipe and more than onely go up between spray low-pressure water nozzle 13 water storage tanks and tower wall, be equipped with sealing between return pipe and discharge orifice.
Above-mentioned first, through two, the trickle sieve plate 4 of the third cooling tower adopts slotted plate or screen clothes.
The 4th kind of gravity water return secondary spraying advances to ventilate and is applicable to big-and-middle-sized crossing current tower, it has tower body 7 and supports pylon 4 under it, water inlet pipe 3 is arranged in the tower, ponding dish 1 and fix its bottom and outlet pipe 16 that the water route is communicated with, the tower wall drives air channel 14 into, cat head sets out air duct 9, it is characterized in that establishing the more than one horizontal spray-propelling atomizer 6 that links to each other with water inlet pipe 3 that (contains one deck) more than one deck at Ta Nei, and device 6 places tower body 7 and has the air inlet duct 14 of 10 of the water storage tanks of discharge orifice; (contain one) more than one circumferential sparge pipe 15 is established in ponding dish 1 top, bottom, and establishes the vertical gravity water return pipe 11 that (contains) more than a discharge orifice is communicated with sparge pipe; Adorn on the sparge pipe 15 and go up spray low pressure sprayer unit 18 or (operating) water nozzle more than one, can put into air duct 5 outside the sprayer unit 18; Be provided with sealing between return pipe 11 and discharge orifice.The exit of air inlet duct 14 can be provided with water collection device 20.
Above-mentioned first, second, the air intake tube of the 4th kind of cooling tower 5 adopts cylindrical or conical.
Above-mentioned first, second, third, fourth kind of cooling tower also has following feature: 1. water storage tank 10 adopts the segmentation bar shaped or directly separates ring shape.2. gravity water return pipe 11 is used as pylon 2 columns, or is connected as a single entity with the tower body wall.3. sparge pipe 15 epimeres are established and are sprayed balanced valve 17.This valve adopts common stop valve, gate valve or needle valve.4. sparge pipe 15 adopts the straight tube of segmentation or the ring pipe of connection.5. low-pressure water nozzle 13 adopts plain nozzle or inclined to one side nozzle or opens circular hole or the bar hole water spray on sparge pipe 15.
Above-mentioned spray- propelling atomizer 6,18 is same device, is Chinese invention patent title " spray-propelling atomizer " (patent No. ZL90106170.0).
Description of drawings:
First kind of cooling tower structure figure of Fig. 1 the present invention
Fig. 2 Figure 1A-A cutaway view
Fig. 3 Figure 1B-B cutaway view
Second kind of cooling tower structure figure of Fig. 4 the present invention
Fig. 5 Fig. 4 C-C cutaway view
The third cooling tower structure of Fig. 6 the present invention figure
The 4th kind of cooling tower structure figure of Fig. 7 the present invention
Embodiment 1 (first kind pattern, be suitable for middle-size and small-size glass head tower)
See that Fig. 1, Fig. 2, Fig. 3 tower body 7 are square casing, and tower body 7 places above the unlimited pylon 2 in four sides.Chimney fan 9 and water collection device 8 are arranged at the top, and ponding dish 1 and outlet pipe 16 are arranged at the bottom, and water inlet pipe 3 is provided with a spray-propelling atomizer 6 and is contained on the water inlet pipe 3 in the central authorities of tower, and both connect with flange.The cylindrical air intake tube and the trickle sieve plate 4 of sprayer unit outside are connected as a single entity, are fixed on the tower body 7.Trickle sieve plate 4 bottoms are an air inlet duct 14, and its upper column body wall is offered secondary air road 12.Tower body 7 inwalls are established cubic annular water storage tank 10 (see figure 3)s, are tightly connected between the two.Ponding dish 1 top, bottom is established by four pipes and is formed the annular spray pipe 15 that is communicated with, be provided with simultaneously that four vertical gravity water return pipes 11 will go up that 10 4 jiaos of places of water storage tanks all open four discharge orifices and bottom sparge pipe 15 be communicated with, adorn 12 on the sparge pipe 16 altogether and go up spray low-pressure water nozzles 13 and injection balanced valve 17 (see figure 2)s.Between gravity water return pipe 11 and discharge orifice leakproof seal is housed.(operating) water nozzle 13 injection directions are over against the air inlet of air intake tube 5.Only on the close annulus of air intake tube 5 and by the air inlet duct place, the discharge orifice is set just at trickle sieve plate 4.
2 second kinds of patterns of embodiment are suitable for high tower body countercurrent tower.
See Fig. 4, Fig. 5, embodiment 2 and embodiment 1 are except that following difference, and all the other are identical: adorn five spray-propelling atomizer 6 (see figure 4)s on (1) water inlet pipe 3; (2) adorn four with the flange connection on the bottom sparge pipe 15 and go up spray spray-propelling atomizer 18 (see figure 5)s, 15 discrepancy in elevation of water storage tank 10 and sparge pipe need more than 5 meters herein; (3) gas skirt 19 is set up in tower center atomising device 6 and trickle screen cloth 4 belows.That atomising device of tower center is used to aspirate the damp and hot wind that gravity water return secondary sprays, and gas skirt is the cold wind isolation that this damp and hot wind and air inlet duct 14 are entered.Damp and hot wind injection direction is over against gas skirt 19.
See Fig. 6, embodiment 3 and embodiment 1 are except that following difference, and all the other are identical: the spray form placed in the chimney fan 9 under (1) spray-propelling atomizer 6 adopted; (2) cancellation air intake tube 5; (3) trickle sieve plate 4 separates the middle part that is loaded on tower with atomising device 6; (4) secondary air road 12 is not set.
The 4th kind of pattern of embodiment 4 is suitable for the tall and big crossing current tower of tower body.
See Fig. 7, it and embodiment 1 (see figure 1) difference: the spray-propelling atomizer 6 that once sprays on (1) top, transverse injection, and place air inlet duct 14 porch of 10 of tower body 7 tops and water storage tanks, adorn water collection device 20 in air inlet duct 14 exits.The air intake tube 5 and the trickle sieve plate 4 of Fig. 1 atomising device 6 outsides have been cancelled.(2) water storage tank 10 adopts the plate-like annular, and the air channel that upper and lower layer first and second is sprayed isolates, and makes it not overlap.(3) water enters from water inlet pipe 3, and after installing 6 mist coolings, hot water is all collected by water storage tank 10, carries out the secondary injection cooling through return pipe, sparge pipe, atomising device 18 again.The atomising device 18 outer air intake tubes 5 that are equipped with.(4) device 6 adopts two, and device 18 adopts 5.(5) tilted direction was arranged in gravity water return pipe 11 adopted.
The course of work: (1) low pressure hot water flows into spray-propelling atomizer by water inlet pipe, sprays with vaporific form through rotary nozzle, and under the effect of the reaction force of spray flow, shower nozzle and fan blade rotation.The overweight centrifugal force that the shower nozzle rotation produces makes waterflow boosting, and rotation is taken out a large amount of cold wind of people from air inlet duct at a high speed.Cold wind and hot water carry out heat exchange with vaporific form, and cold wind gain of heat humidification is taken away the recirculated water heat, discharge outside the tower through chimney fan and water collection device, and circulating hot water is lowered the temperature for the first time.(2) a hot water part of spraying for the first time after lowering the temperature disperses to fall to carry out the heat exchange cooling with cold wind once more through the trickle sieve plate, another part flows into water storage tank, flow into the sparge pipe of bottom through return pipe, under the effect of the gravitional force that the backwater discrepancy in elevation produces, through low-pressure nozzle or the cooling of atomising device secondary injection.The result of secondary injection has not only made full use of the water energy, and because the discrepancy in elevation of secondary injection nozzle and ponding dish is little, just greatly reduces the trickle noise.(3) in air intake tube bottom the trickle sieve plate is set, has trickle and avoid the hot air reflux double action with the cold and hot wind of isolation district.(4) the secondary wind channel utilizes jet-action to suck cold wind.Mechanical draft and injection air stack have increased gas-water ratio.
Techno-economic effect of the present invention is as follows:
Since adopted the spray-propelling atomizer that carries out the work of centrifugal supercharging principle with super gravity field, real Showed the spraying ventilation of low pressure, big flow, heavy caliber, atmospheric water ratio since adopted the gas-liquid isolation, Interior air duct, sieve plate (net) trickle, secondary air reduces air inlet/outlet resistance and gravity water return secondary in the tower The multinomial technology such as injection have realized energy-conservation, cooling, noise reduction, the positive effect such as reduce cost. The experiment table Bright when atmosphere dry-bulb temperature be 37 ℃, when wet-bulb temperature is 27 ℃, work water pressure 0.15Mpa, gravity water return Secondary injection atomizing propulsion aeration cooling tower inflow temperature is 40.3 ℃, and leaving water temperature is 32 ℃, 8.3 ℃ of temperature drops Fall 2 ℃, reducing noise 8db when spraying than the agravic water return secondary of same tower more. Owing to have many-sided Advantage, so air-blower cooling tower driven by secondary jetting gravitational backwater should be the replacement of existing cooling tower Product.
Claims (15)
1. gravity water return atomizing propulsion aeration cooling tower has tower body (7) and supports pylon (2) under it, and water inlet pipe (3) is arranged in the tower, ponding dish (1) and fix its bottom and outlet pipe (16) that the water route is communicated with; The tower wall has an air inlet duct (14); Cat head sets out air duct (9) and water aspirator (8), it is characterized in that in tower, being provided with the upper spraying type spray-propelling atomizer (6) that links to each other with water inlet pipe (3) that (contains) more than, and each device places in the air intake tube (5) that the air inlet duct in air port, bottom surface and below (14) wind path is communicated with, trickle sieve plate (4) is established in the air intake tube outside, both are connected as a single entity with connector, and are fixed on the tower body (7); Tower body (7) inwall is established the water storage tank (10) that has the discharge orifice, and (contain one) more than one circumferential sparge pipe (15) is established in bottom ponding dish (1) top, and establishes the vertical gravity water return pipe (11) that (contains) more than with discharge orifice and Suo cross current; Adorn on the sparge pipe and go up spray low-pressure water nozzle (13) more than one; Between water storage tank and tower wall, be equipped with sealing between return pipe and discharge orifice.
2. by the described cooling tower of claim 1, it is characterized in that setting up gas skirt (19), on sparge pipe (15) below this gas skirt, adorn more than one low hydraulic nozzle of spray or the low pressure spray-propelling atomizer (18) gone up at the spray-propelling atomizer (6) at tower center and the below of trickle sieve plate (4).
3. by claim 1 or 2 described cooling towers, it is characterized in that trickle sieve plate (4) top tower body (7) sidewall offers secondary air road (12).
4. by the described cooling tower of claim 2, it is conical cylindrical or square to it is characterized in that gas skirt (19) adopts.
5. gravity water return atomizing propulsion aeration cooling tower has tower body (7) and supports pylon (2) under it, and water inlet pipe (3) is arranged in the tower, ponding dish (1) and fix its bottom and outlet pipe (16) that the water route is communicated with; The tower wall has an air inlet duct (14); Cat head sets out wind letter (9) and water aspirator (8), it is characterized in that in tower, being provided with the upper spraying type spray-propelling atomizer (6) that links to each other with water inlet pipe (3) that (contains) more than, and each device places in air port, bottom surface and the air intake tube (5) that an air inlet duct (14) wind path is communicated with, below it, set up gas skirt (19), between device (6) outside and tower wall, establish the water storage tank (10) that has the discharge orifice, (contain one) more than one circumferential sparge pipe (15) is established in bottom ponding dish (1) top, and establish the vertical gravity water return pipe (11) that (contains) more than with discharge orifice and sparge pipe connection, adorn on the sparge pipe and go up spray low-pressure water nozzle (13) more than one, between water storage tank and tower wall, be equipped with sealing between return pipe and discharge orifice.
6, a kind of gravity water return atomizing propulsion aeration cooling tower has tower body (7) and supports pylon (2) under it, and water inlet pipe (3) is arranged in the tower, ponding dish (1) and fix its bottom and outlet pipe (16) that the water route is communicated with; The tower wall has an air inlet duct (14); Cat head sets out air duct (9) and water aspirator (8), it is characterized in that establishing in chimney fan (9) the down-jetting type type spray-propelling atomizer (6) that (contains) more than and link to each other with water inlet pipe (3), and establishes trickle sieve plate (4) at the tower middle part; Tower body (7) inwall is established the water storage tank (10) that has the discharge orifice, (contain one) more than one circumferential sparge pipe (15) is established in bottom ponding dish (1) top, and establish the vertical gravity water return pipe (11) that (contains) more than a discharge orifice is communicated with sparge pipe, adorn on the sparge pipe and go up spray low-pressure water nozzle (13) more than one; Between water storage tank and tower wall, be equipped with sealing between return pipe and discharge orifice.
7. by claim 1 or 2 or 6 described cooling towers, it is characterized in that trickle sieve plate (4) adopts slotted plate or screen cloth.
8. gravity water return atomizing propulsion aeration cooling tower has tower body (7) and supports pylon (2) under it, and water inlet pipe (3) is arranged in the tower, ponding dish (1) and fix its bottom and outlet pipe (16) that the water route is communicated with; The tower wall has an air inlet duct (14); Cat head sets out air duct (9) and water aspirator (8), it is characterized in that establishing at Ta Nei the spray-propelling atomizer (6) of the more than one transverse injection that links to each other with water inlet pipe that (contains one deck) more than one deck, device (6) places tower body (7) and has air inlet duct (14) between the water storage tank (10) of discharge orifice; (contain one) more than one circumferential sparge pipe (15) is established in bottom ponding dish (1) top, and establishes the vertical gravity water return pipe (11) that (contains) more than a discharge orifice is communicated with sparge pipe; Adorn on the sparge pipe (15) and go up spray low-pressure water nozzle (18) more than one, be provided with sealing between return pipe (11) and discharge orifice.
9. by the described cooling tower of claim 8, establish water collection device (20) in the exit of air inlet duct (14).
10. by claim 1 or 2 or 5 or 6 or 8 described cooling towers, it is cylindrical or conical to it is characterized in that air intake tube (5) adopts.
11., it is characterized in that water storage tank (10) adopts segmentation bar shaped or square or annular by claim 1 or 2 or 5 or 6 or 8 described cooling towers.
12. by claim 1 or 2 or 5 or 6 or 8 described cooling towers, it is characterized in that gravity water return pipe (11), or be connected as a single entity with the tower body wall as pylon (2) column.
13. by claim 1 or 2 or 5 or 6 or 8 described cooling towers, it is characterized in that upward installing injection balanced valve (17) of sparge pipe (15), adopt common stop valve, gate valve or needle valve.
14., it is characterized in that sparge pipe (15) adopts the straight tube of segmentation or the ring pipe of connection by claim 1 or 2 or 5 or 6 or 8 described cooling towers.
15., it is characterized in that low-pressure water nozzle (13) adopts plain nozzle or directly open circular hole or bar hole water spray on sparge pipe (15) by claim 1 or 2 or 6 or 8 described cooling towers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97107721 CN1069128C (en) | 1997-10-15 | 1997-10-15 | Air-blower cooling tower driven by secondary jetting gravitational backwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97107721 CN1069128C (en) | 1997-10-15 | 1997-10-15 | Air-blower cooling tower driven by secondary jetting gravitational backwater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1184244A CN1184244A (en) | 1998-06-10 |
| CN1069128C true CN1069128C (en) | 2001-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97107721 Expired - Fee Related CN1069128C (en) | 1997-10-15 | 1997-10-15 | Air-blower cooling tower driven by secondary jetting gravitational backwater |
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| Country | Link |
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| CN (1) | CN1069128C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200396B (en) * | 2011-07-01 | 2013-04-24 | 北京市劳动保护科学研究所 | Mixed heat exchange device for gaseous and liquid materials |
| CN105241271A (en) * | 2015-09-17 | 2016-01-13 | 苏州新协力特种工业模板有限公司 | Cooling tower used for iron and steel industry |
| CN106556262B (en) * | 2017-01-23 | 2018-06-08 | 南安市达腾商务服务有限公司 | A kind of heavy duty detergent industry cooling equipment |
| CN108548431A (en) * | 2018-04-13 | 2018-09-18 | 重庆鸿运和锐科技有限公司 | A kind of Multi-stage jet spraying gravity water return Blower-free non-filling type cooling device |
| CN108645240B (en) * | 2018-06-14 | 2023-10-03 | 魏仕英 | Gravity backwater secondary injection cooling tower |
| CN108827060A (en) * | 2018-07-12 | 2018-11-16 | 重庆鸿运和锐科技有限公司 | The ultralow jet flow of gravity water return is sprayed secondary injection nozzle assembly and cooling means |
| CN109059574A (en) * | 2018-08-20 | 2018-12-21 | 重庆鸿运和锐科技有限公司 | A kind of ultralow flow resistance and noise type Multi-stage jet Spray Way and device |
| CN113295021B (en) * | 2021-03-24 | 2022-04-19 | 湖州市中跃化纤有限公司 | Energy-saving cooling tower |
-
1997
- 1997-10-15 CN CN 97107721 patent/CN1069128C/en not_active Expired - Fee Related
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|---|---|
| CN1184244A (en) | 1998-06-10 |
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