CN104048552A - Wall flow prevention sprayer for cooling tower - Google Patents
Wall flow prevention sprayer for cooling tower Download PDFInfo
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- CN104048552A CN104048552A CN201410269171.4A CN201410269171A CN104048552A CN 104048552 A CN104048552 A CN 104048552A CN 201410269171 A CN201410269171 A CN 201410269171A CN 104048552 A CN104048552 A CN 104048552A
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- shower nozzle
- cooling tower
- water
- wall flow
- splash board
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Abstract
The invention relates to a wall flow prevention sprayer for a cooling tower. The upper half part of a fixing sleeve is fixedly connected with a water distribution branch pipeline; the lower half part of the fixing sleeve is positioned and fixedly connected with a water inlet in the upper end of a sprayer main body; a conical flow guide channel of the sprayer main body is provided with a back water baffle; the middle of the back water baffle is sequentially provided with four splashing plates from top to bottom; each splashing plate is provided with a splashing plate sawtooth-like edge; the spraying area of the sprayer is a semicircle; a circle of the wall flow prevention sprayers are arranged right above the padding edge of the cooling tower; the positions of the sprayers are fixed, so the spraying area fully falls onto padding; two types of sprayers are used in a matching mode, so the generation of wall flows can be effectively reduced, and the problem that no spraying water exists in a certain area of the padding due to the change of the sprayer flow can be avoided. The wall flow is avoided, no wall flows occur even the flow is changed, the occurrence possibility of the spraying water-free area is greatly reduced, the whole spraying is more uniform and the cooling capacity of the tower is obviously improved.
Description
Technical field
The present invention relates to a kind of cooling tower spray head, specifically a kind of shower nozzle of anti-wall flow.
Background technology
Cooling tower industry is good at Chinese development, in national life and industrial production, be widely applied, by the way of contact of cooling water and air, can be divided into open cooling tower and closed cooling tower, be called for short and open tower and close tower, no matter be Kai Ta or closing the main radiating mode of tower comprises contact heat radiation and evaporative heat loss, wherein evaporative heat loss is occupied an leading position.
The quality of spraying effect is the key factor that determines cooling tower cooling capacity, the generation of wall stream can reduce the cooling effect of cooling tower, along this part shower water of wall, do not participate in the loose matter of heat radiation of filler, there is no obtain cooling, and in the process of reciprocation cycle, also will consume the power of pump, thereby can cause cooling tower whole efficiency to reduce.
Shower nozzle is because it is simple in structure, easy for installation, and spray effect is good, in cooling tower industry, is widely used, and plate spatters formula shower nozzle, to have spray area large, sprays the favor that the feature such as even has obtained user especially.The patent No. is that 201320019328.9 patent documentation has been announced a kind of three layers of splash shower nozzle, and three layers of splash board spill out shower water successively, reach the effect of even sprinkling, and shower nozzle also comprises retaining thread cover, for being connected with the water distributor of cooling tower.But there is the situation of wall stream in cooling tower.
Summary of the invention
The present invention will solve the technical problem that cooling tower exists wall stream, and provide a kind of for cooling tower anti-wall flow shower nozzle, install after anti-wall flow shower nozzle, can effectively prevent the generation of wall stream, can reduce the appearance of shower nozzle spray blind area simultaneously, in whole spray region, spray is more even, and this shower nozzle is easy to use, anti-wall flow successful.
The present invention is achieved by the following technical solutions:
A kind of for cooling tower anti-wall flow shower nozzle, by fixed muffle and nozzle body, formed, be characterized in: fixed muffle the first half is fixedly connected with water distribution subtube, the latter half is fixedly connected with the water inlet location of nozzle body upper end, the conical flow-guiding channel of nozzle body is provided with shower nozzle back water fender, and at back water fender middle part, be provided with successively from top to bottom four splash boards, every splash board outer cylinder is provided with splash board jagged edge.
Fixed muffle the latter half is provided with pilot pin groove and fixing hole, and the water inlet side of nozzle body is provided with Fixed latches, and the fixing hole that nozzle body is inserted on fixed muffle by Fixed latches is fixedly connected with fixed muffle location.
Fixed muffle is connected with water distribution subtube by the connecting port on it.Water fender center, shower nozzle back is provided with half cone-shaped flow-guiding channel, and half cone-shaped flow-guiding channel is until the 4th layer of splash board cut-off.Splash board centre bit sets high, and margin location sets low, and from center to closing on margin location, is equipped with a gradient, its angle of gradient α=10 ~ 30 degree.
The invention has the beneficial effects as follows: it is existing that the present invention almost can prevent that wall from flowing out, cooling tower spray can be more even simultaneously, can effectively improve cooling tower cooling capacity, the mode that adopts latch to be fixed, effectively stationary nozzle, installs and changes more simple and convenient.
Accompanying drawing explanation
Fig. 1 a is structural upright schematic diagram of the present invention;
Fig. 1 b is left view of the present invention;
Fig. 2 a is the top view of back water fender;
Fig. 2 b is the schematic perspective view of back water fender;
Fig. 3 is Fixed latches front view;
Fig. 4 a is fixed muffle front view;
Fig. 4 b is fixed muffle schematic perspective view;
Fig. 5 a is the front view of splash board;
Fig. 5 b is the top view of splash board;
Fig. 6 is shower nozzle spray area schematic.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in detail.
As shown in Fig. 1 a, 1b, for cooling tower anti-wall flow shower nozzle, by nozzle body and two parts of fixed muffle, formed.Nozzle body comprises water inlet 1, Fixed latches 3, conical central guiding circulation road 2, shower nozzle back water fender 4, ground floor splash board 5,7, the four layers of splash board 8 of 6, the three layers of splash board of second layer splash board, edge sawtooth 9.
As Fig. 4 a, shown in 4b, fixed muffle comprises the connecting port 13 connecting with water distribution subtube, handle 10, pilot pin groove 11, fixing hole 12.
Fixed muffle is cylindric, overall length 45 ~ 60mm, is divided into upper and lower two parts, and the first half is long is L, it is relevant that its length L and water distribution are in charge of caliber, by formula (1), calculated, its wall thickness 2 ~ 3mm, adopts PUR hot melting way to be connected with water distribution subtube, long 25 ~ the 35mm of the latter half, internal diameter is 33.4mm, and wall thickness 2 ~ 3mm, with latch groove 11 and fixing hole 12.
（1）
In formula: D
1the external diameter of-water distribution subtube;
D-sleeve the first half external diameter;
Nozzle body water inlet 1 external diameter 33.4mm, wall thickness 2 ~ 3mm, has Fixed latches 3(Fig. 3 on it), after it coordinates with latch groove 11 and fixing hole 12, the position of shower nozzle and towards just fixing.
Nozzle body from position of center line in two, half part has four layers of semicircle splash board (Fig. 5 a, 5b), water is come by these four layers of splash boards spilling in layer, second half part is middle shower nozzle back water fender 4(Fig. 2 a with half cone-shaped flow-guiding channel, 2b), shower nozzle back water fender 4 and four layers of splash board fit in the nozzle body of center circle taper through hole.
First splash board that shower water runs in the process falling is ground floor splash board 5, sequence successively, ground floor splash board 5 diameter 80 ~ 100mm, diameter 20 ~ the 22mm of central through hole, it is 25 ~ 35mm to the vertical range of delivery port, and ground floor splash board 5 distributes the water yield to account for 50% of shower nozzle total Water.
Second layer splash board 6 diameter 50 ~ 60mm, central through hole diameter 13 ~ 15mm, it is 25 ~ 35mm to the vertical range of ground floor splash board 5, second layer splash board 6 distributes the water yield to account for 25% of shower nozzle total Water.
The 3rd layer of splash board 7 diameter 20 ~ 25mm, central through hole diameter 5 ~ 7mm, it is 25 ~ 35mm to the vertical range of second layer splash board 6, the 3rd layer of splash board 7 distributes the water yield to account for 20% of shower nozzle total Water.
The 4th layer of splash board 8 diameter 3 ~ 5mm, center is without through hole, and it is 10 ~ 15mm to the vertical range of the 3rd layer of splash board 7, and the 4th layer of splash board 8 distributes the water yield to account for 5% of shower nozzle total Water.
High in the middle of splash board, edge is low, and the angle that the formation gradient is α, increases gradually from four layers of splash board angle of gradient of ground floor to the, and α generally gets 10 ~ 30 °.
Splash board edge is zigzag, and sawtooth tooth depth is 3 ~ 6mm, and the central angle that sawtooth is corresponding is β, and according to the size of each different layers splash board, central angle value is different, and the central angle between Dan Liangchi center is always 2 β.
Following examples be take squarer as example.
During installation, fixed muffle is arranged on water distribution subtube, and the fixing hole of fixed muffle is parallel towards the cooling tower wall with closing on, and can guarantee that so whole semicircles region of anti-wall flow shower nozzle sprinkling is all on filler.
As shown in Figure 6, in total region C of sprinkling, shower nozzle adopts center staggered form to arrange, the spray region external diameter of a shower nozzle is crossed the center of circle in adjacent shower nozzle spray region, arranges conventional shower nozzle 20 in dashed region.The diameter that single conventional shower nozzle sprays region A is D
1, anti-wall flow shower nozzle 21 is 1.1 ~ 1.2D with closing on conventional shower nozzle 20 distances
1, in the time of can guaranteeing that like this water spray fluctuates in design discharge certain limit, conventional shower nozzle 20 shower waters yet can not spray on wall and go, and effectively prevent the generation of wall stream.Anti-wall flow shower nozzle 21 be arranged on filler edge directly over, the diameter of its sprinkling region B is 1.1 ~ 1.2D
1.Anti-wall flow shower nozzle 21 has identical spray flux with conventional shower nozzle 20, and the conical flow-guiding channel of nozzle body back baffle plate plays guide functions, as shown in Figure 2 b.When shower water is with flow velocity V
1under vertical current, under the effect of circular cone flow-guiding channel, V
1can be gradually increase, a part of water and ground floor splash board generation inelastic collision in the process that continues to fall, because splash board has certain gradient, generation be oblique impact, according to non-resilient oblique impact principle, the conservation of momentum, shower water horizontal velocity V=V
1, shower water leave the horizontal flow velocity V of splash board can be larger than conventional shower nozzle, by the known sprinkling regional diameter of formula (2) D
2larger.
（2）
In formula: the speed in V-shower water horizontal direction;
H-splash board is to the vertical range of filler;
G-acceleration of gravity;
After shower water is caught by ground floor splash board, with horizontal velocity V, along splash board edge, spread out uniformly, shower water has a viscous force part trickle is produced to inhibition when leaving jagged edges, and this part current degree can reduce, from (2) formula, spray regional diameter D
2reduce, thereby make trickle reach better dispersion effect.
Second and third, splash board and the ground floor of four layers produce same effect, shower water is caught by splash board in layer in the process falling, by this layer of splash board, disperseed again, shower water is sprayed in spraying region more even, improve the cooling capacity of cooling tower.
The present invention adopts Fixed latches and latch groove, fixing hole to coordinate, guaranteed shower nozzle fixing towards time, install and change more simple and convenient.
The present invention is applicable to the cooling tower of tubular type water distribution, and nozzle body adopts glass fiber enhanced nylon material, high temperature resistant, not yielding, can guarantee uniformity and the stability of spraying.
Claims (5)
1. one kind for cooling tower anti-wall flow shower nozzle, by fixed muffle and nozzle body, formed, it is characterized in that: described fixed muffle the first half is fixedly connected with water distribution subtube, the latter half is fixedly connected with the water inlet location of nozzle body upper end, the conical flow-guiding channel (2) of nozzle body is provided with shower nozzle back water fender (4), and at back water fender (4) middle part, be provided with successively from top to bottom four splash boards, every splash board outer cylinder is provided with splash board jagged edge (9).
2. according to claim 1 for cooling tower anti-wall flow shower nozzle, it is characterized in that: described fixed muffle
The latter half is provided with pilot pin groove (11) and fixing hole (12), the water inlet of described nozzle body (1) side is provided with Fixed latches (3), and the fixing hole (12) that nozzle body is inserted on fixed muffle by Fixed latches (3) is fixedly connected with fixed muffle location.
3. according to claim 1 for cooling tower anti-wall flow shower nozzle, it is characterized in that: described fixed muffle is connected with water distribution subtube by the connecting port (13) on it.
4. according to claim 1 for cooling tower anti-wall flow shower nozzle, it is characterized in that: described shower nozzle back water fender (4) center is provided with half cone-shaped flow-guiding channel, half cone-shaped flow-guiding channel is until the 4th layer of splash board (8) cut-off.
5. according to claim 1 for cooling tower anti-wall flow shower nozzle, it is characterized in that: described splash board centre bit sets high, and margin location sets low, from center to closing on margin location, be equipped with a gradient, its angle of gradient α=10 ~ 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269171.4A CN104048552B (en) | 2014-06-17 | 2014-06-17 | For cooling tower anti-wall flow shower nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269171.4A CN104048552B (en) | 2014-06-17 | 2014-06-17 | For cooling tower anti-wall flow shower nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104048552A true CN104048552A (en) | 2014-09-17 |
| CN104048552B CN104048552B (en) | 2016-09-14 |
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ID=51501719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410269171.4A Active CN104048552B (en) | 2014-06-17 | 2014-06-17 | For cooling tower anti-wall flow shower nozzle |
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| Country | Link |
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| CN (1) | CN104048552B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017114258A1 (en) * | 2015-12-28 | 2017-07-06 | 上海艾客制冷科技有限公司 | Traffic-varyingflow-adaptive spray nozzle having guiding and spreading functionscapable of guiding flows and conducting spread |
| US11002499B2 (en) | 2015-12-28 | 2021-05-11 | Shanghai Ace Cooling Refrigeration Technology Co., Ltd. | Water distribution system with wide-range variable traffic |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2212181Y (en) * | 1994-09-21 | 1995-11-08 | 王腊华 | Water jet for cooling tower |
| CN201407950Y (en) * | 2009-04-29 | 2010-02-17 | 王伯成 | Down spraying nozzle for cooling tower |
| CN103234381A (en) * | 2013-05-13 | 2013-08-07 | 海门市大生水处理设备（厂）有限公司 | Circulating water sprinkling shower nozzle |
| CN203908388U (en) * | 2014-06-17 | 2014-10-29 | 上海理工大学 | Anti-wall-flow cooling tower sprinkle nozzle |
-
2014
- 2014-06-17 CN CN201410269171.4A patent/CN104048552B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2212181Y (en) * | 1994-09-21 | 1995-11-08 | 王腊华 | Water jet for cooling tower |
| CN201407950Y (en) * | 2009-04-29 | 2010-02-17 | 王伯成 | Down spraying nozzle for cooling tower |
| CN103234381A (en) * | 2013-05-13 | 2013-08-07 | 海门市大生水处理设备（厂）有限公司 | Circulating water sprinkling shower nozzle |
| CN203908388U (en) * | 2014-06-17 | 2014-10-29 | 上海理工大学 | Anti-wall-flow cooling tower sprinkle nozzle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017114258A1 (en) * | 2015-12-28 | 2017-07-06 | 上海艾客制冷科技有限公司 | Traffic-varyingflow-adaptive spray nozzle having guiding and spreading functionscapable of guiding flows and conducting spread |
| US11002499B2 (en) | 2015-12-28 | 2021-05-11 | Shanghai Ace Cooling Refrigeration Technology Co., Ltd. | Water distribution system with wide-range variable traffic |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104048552B (en) | 2016-09-14 |
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