CN201748849U - Parallel running cooling tower group - Google Patents

Parallel running cooling tower group Download PDF

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Publication number
CN201748849U
CN201748849U CN2010202182675U CN201020218267U CN201748849U CN 201748849 U CN201748849 U CN 201748849U CN 2010202182675 U CN2010202182675 U CN 2010202182675U CN 201020218267 U CN201020218267 U CN 201020218267U CN 201748849 U CN201748849 U CN 201748849U
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China
Prior art keywords
water
cooling tower
parallel running
group
water distribution
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Expired - Fee Related
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CN2010202182675U
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Chinese (zh)
Inventor
宁方亮
张红星
宁尚超
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WUXI YONGXIN TECHNOLOGY Co Ltd
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WUXI YONGXIN TECHNOLOGY Co Ltd
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Abstract

The utility model relates to an improved parallel running cooling tower group which is characterized in that a water outlet of a water receiving tray of each cooling tower is provided with a drainage balanced valve capable of regulating outflow rate synchronously along with the high or low water level change, and the water outlet of a water distribution inlet pipe of each cooling tower is provided with a water inlet distribution cylinder which is provided with a vertical groove at the circumferential surface or is provided with alternate holes or grooves vertically. The parallel running cooling tower group can realize even water discharge and distribution of all towers, thus overcoming the defects that all the towers in the prior art can not discharge water evenly so as to cause waste of cooling water or suck air completely to influence safe running, and the uneven water distribution causes the reduction of efficiency of the whole cooling tower group, and further causes high running energy consumption of cooled equipment.

Description

Parallel running cooling tower group
Technical field
Utility model is the improvement to parallel running cooling tower group, relate in particular to a kind of cooling water of not wasting, can guarantee system safety operation, and can make each cooling tower operate in high energy efficiency, and each tower efficiency equilibrium, the parallel running cooling tower group that cooling tower group efficiency is high.
Background technology
The cooling tower that cooperates the air conditioner refrigerating unit adopts multitower parallel running scheme usually in system's design, each cooling tower connects by pipeline.Yet, objectively because pipe-line system configuration (for example pipeline length, pipeline structure), pipeline and factors such as valve resistance and each tower difference in height, can cause each cooling tower draining of parallel running unequal, thereby make each cooling tower bottom drip tray water level imbalance.Discharge the little meeting of the water yield and cause water level to raise, the excessive waste of cooling water takes place; Discharge the big meeting generation drip tray lack of water of the water yield, cause the pipeline dehydration to inhale sky and advance air, influence system safety operation.
For realizing each tower drip tray water level balance, Chinese patent CN201032231 organizes cooling tower water level balance connected system more, proposition is parallel with one or more U-shaped communicating pipe between each cooling tower drip tray, the communicating pipe outlet is provided with sewage draining valve, connects in twos by each tower water outlet and realizes each cooling tower drip tray water level balance in parallel.Yet be communicated with in twos between a plurality of cooling towers, not only need increase more auxiliary piping, increase cost of investment, not only difficulty of construction was big when distance was far away between two towers, and also be difficult to sometimes realize, and since pipe resistance cause go out not that unbalanced phenomena still can not get eliminating; Secondly, too much when tower quantity in parallel, or the tower height degree has difference of height, and balance pipe still is difficult to thoroughly solve each tower drip tray water level relative equilibrium.
Prior art also has employing to detect each tower drip tray water level in parallel respectively, and electric control valves such as control motor-driven valve are controlled each cooling tower displacement, to keep each cooling tower drip tray water level relative equilibrium.This method not only cost is too high, and electronic unit, mechanical failure rate height, the maintenance rate height, and reliability is not high, uses extremely inconvenient.
In addition, same because the pipe-line system configuration, operating condition changes, change in flow in the pipeline, and factors such as pipeline and valve resistance, can cause each cooling tower of parallel running, particularly water distribution near-end cooling tower and the water distribution of far-end cooling tower are unbalanced, even not end or few water of the big part cooling tower of resistance or anhydrous allocating into, this water distribution unbalanced phenomena is lower in the pipeline total flow, it is even more serious when for example flow has only metered flow 30-50% or lower low discharge in the distributing pipe line, the cold tower that the water distribution resistance is little can obtain more distributed water flow, and the then flow that the water distribution resistance is bigger is too small or do not have a flow.Cause that into the water water distribution quantity is big, it is excessive that water easily takes place, and causes unnecessary cooling water outflow waste; The water inlet water distribution quantity is little, and lack of water easily takes place, and seriously can cause water lines to advance air, steadily reaches safe operation for the equipment that is cooled and causes serious hidden danger.Particularly each cooling tower water distribution is inhomogeneous, directly influences the cooling tower operational efficiency, can not be fully, balanced each cooling tower efficient of performance, thus reduced cooling tower group whole efficiency, be to cause the high major reason of equipment operation energy consumption that is cooled.
Prior art is a head it off, usually adopt and on each tower of cooling tower group, increase online detection, install electrically-controlled valve (for example electronic or magnetic valve) on each tower water inlet pipe additional, by detecting each cooling tower flow of inlet water, each tower water inlet electrically-controlled valve open degree of corresponding adjustment, make every effort to make each cooling tower even water distribution of parallel running, guarantee the cooling effectiveness that cooling tower group is high.Yet, increase online detection, electrically-controlled valve and control system, it is higher not only to increase cost, and reliability is not high fragile; Secondly, flow of inlet water changes frequently sometimes, detects, the electrically-controlled valve governing speed is slow relatively again, causes fast slack-off regulation and control system difficulty even regulation and control to fail, and actual regulating effect is not obvious.In addition, prior art also has employing at each tower water inlet end, mechanical permanent flow valve or equilibrated valve are installed are controlled each tower flow, mechanical valve not only can cause the water pump loss to increase, and especially in discharge hour, mechanical valve is actual to be difficult to balance, particularly pump variable frequency or water pump quantity increases and decreases, cause that water distribution trunk line changes in flow rate is frequent, amplitude is big, increased flow equalization Self Adaptive Control difficulty especially; Secondly, the spoilage of mechanical valve is higher, and reliability is not high, and to increase cost bigger in addition, and actual people are reluctant to use.Objectively above-mentioned reason makes present cooling tower group efficient not give full play to, and causes operation energy consumption higher.
Above-mentioned deficiency still has is worth improved place.
The utility model content
Utility model first purpose is to overcome the deficiency of above-mentioned prior art, and a kind of cooling water of not wasting is provided, and the parallel running cooling tower group that can guarantee system safety operation.
Another purpose of utility model is to provide a kind of each cooling tower that can make to operate in high energy efficiency, and each tower efficiency equilibrium, the parallel running cooling tower group that cooling tower group efficiency is high.
Utility model first purpose realizes, the main improvement is at each cooling tower drip tray delivery port of parallel running, the one draining balanced valve that can just change adjusted in concert water flow size with water level is set, each cooling tower draining of group is determined according to himself drip tray water level, thereby reach balanced each cooling tower drip tray water level, overcome the deficiencies in the prior art, realized the utility model purpose.Specifically, utility model parallel running cooling tower group comprises a plurality of cooling towers of parallel running it is characterized in that each cooling tower drip tray delivery port has the draining balanced valve that can just change adjusted in concert water flow size with water level.
Automatically adjust the balanced valve of the water yield according to water level, its effect is to make at drip tray water level height, strengthen drain discharge by automatic adjusting draining valve open degree, water level is low to reduce drain discharge by reducing the draining valve open degree automatically, can regulate displacement automatically with SEA LEVEL VARIATION thereby reach each cooling tower drip tray in parallel, guarantee each cooling tower drip tray water level trend in parallel unanimity (having got rid of the discrepancy in elevation Different Effects of tower own) relatively.According to the aforementioned functional principle, draining balanced valve concrete structure is not limit, can be to adopt buoyancy aid pulling by-pass valve control aperture, also can be by additive method sensed water level by-pass valve control aperture, detection of electrons electrically-controlled valve for example, wherein the most simply adopt buoyancy aid by-pass valve control aperture, for example similar water tank water intake is with ball-cock assembly, as ball float pulling control opening sphere or semisphere valve, and slide valve etc. is controlled in the ball float pulling.
Utility model second purpose realizes that main improvement is each the cooling tower water distribution water inlet pipe delivery port in parallel running cooling tower group, increases the water inlet water distribution tube that a side face has vertical slot or alternate hole or groove are vertically arranged.This water inlet water distribution barrel structure, its principle and effect are: after cooling tower water inlet outlet is installed, make when metered flow is hanged down in water distribution, the water inlet water distribution tube water level of pipe resistance less (come discharge big) raises, thereby produce hydraulic pressure potential energy and react on water inlet pipe, impelling this tower water inlet resistance to increase flow reduces, according to the communicating pipe equilibrium principle, reach to former high relatively water inlet resistance (far-end of for example intaking) cooling tower distributed water flow and strengthen, make parallel running cooling tower group when low metered flow water distribution is inhomogeneous, produce hydraulic pressure potential energy regulating action by adding this water distribution tube, make each cooling tower water inlet resistance tend to consistent automatically, thereby reach each cooling tower water inlet water distribution in parallel of balance, overcome the deficiencies in the prior art, solved parallel running cooling tower long-term existence problem.Can have multiplely by its version of this principle, for example the monotubular side face has vertical slot, side face that vertical alternate apopore and/or groove structure are arranged, wherein alternate vertical core of side face and/or groove, and perhaps vertical succeeding vat can be vertical vertical, also can be that spiral is vertical; Water inlet water distribution tube can also be the double-barrel structure that into water, water outlet separate, the inside and outside sleeve structure of perhaps intake, water outlet separating.Wherein be preferably the telescoping structure that differing heights apopore and/or groove are arranged on the inner core.
Regulate sensitivity for improving, water inlet water distribution tube height ratio highly relatively hangs down and will get well, the reaction hydraulic pressure potential energy of highly high its generation is big, adjusting is sensitive, the space is big, regulating effect is good, and test shows, wherein highly suits at 500-1500mm, if when the distributing pipe line resistance is big, can also highly improve adjusting sensitivity by increasing the water distribution tube.
Utility model parallel running cooling tower group, with respect to prior art, owing to can just change the draining balanced valve of adjusted in concert water flow size in the drip tray delivery port increase of each cooling tower of parallel running with water level, make and to regulate the outflow water yield automatically according to cooling tower drip tray water level, balanced each cooling tower drip tray water level, make that former each tower draining non-uniform phenomenon is overcome, both avoided the excessive waste of cooling water, avoid lack of water to advance air again and influenced safe operation, even each tower drip tray water level injustice can not appear in the low injustice of each tower height yet, and this control is not subjected to distance between tower, restricted number greatly reduces the construction costs of this phenomenon for a change.Particularly utilize the buoyancy aid pulling to change the buoyancy aid by-pass valve control of valve openings of sizes, simple in structure especially, cost is low, and movement response is sensitive reliable, and fault rate is low.Secondly, each cooling tower water distribution water inlet pipe delivery port in parallel running cooling tower group, increase a water inlet water distribution adjusting device that vertical slot is arranged or alternate hole or groove are vertically arranged, make to be overcome at less relatively each the tower water distribution unbalanced phenomena that causes of water distribution pipeline flow.For example working as a certain cooling tower pipeline of parallel running water resistance increases than low discharge relatively, because water outlet is by hole on the short transverse, groove is discharged, causing intakes in water dispensing apparatus not exclusively equates with water flow, cause the interior water level of water dispensing apparatus to rise (according to coming the discharge size, produce different pressures), thereby increased water level potential energy pressure, this water level potential energy pressure reacts on inlet pipeline, thereby make and reduce because of the water inlet resistance increases flow, according to the communicating pipe pressure balance principle, increased flow, thereby solved, reached balanced each tower water distribution in evenly water inlet between each tower between 30%~100% flow to low discharge (high-drag district), when having realized cooling tower unit cooperation in parallel, each tower water distribution is continual and steady, and each cooling tower efficiency is not fully exerted, and has improved the overall operation efficiency.
Below in conjunction with several specific embodiments; utility model is further understood in exemplary illustration and help; but the embodiment detail only is for utility model is described; do not represent utility model design whole technical schemes down; therefore should not be construed as the total technical scheme of utility model is limited; some are In the view of the technical staff; the unsubstantiality that does not depart from the utility model design increases and/or change; for example change or replace, all truely use novel protected scope so that technical characterictic with same or similar technique effect is simple.
Description of drawings
Fig. 1 installs water flow for cooling tower in parallel group and regulates the balanced valve structural representation automatically.
Fig. 2 is a kind of draining balanced valve structural representation.
Fig. 3 is that cooling tower in parallel group water inlet end is installed water inlet water distribution adjusting device structural representation.
Fig. 4 is a kind of water inlet water distribution adjusting device structural representation.
Fig. 5 is another kind of water inlet water distribution adjusting device structural representation.
Fig. 6 is Fig. 5 sectional structure schematic diagram.
Fig. 7 is another water inlet water distribution adjusting device structural representation.
Fig. 8 is Fig. 7 sectional structure schematic diagram.
Fig. 9 is another water inlet water distribution adjusting device structural representation.
Figure 10 is a kind of water inlet water distribution adjusting device structural representation also.
The specific embodiment
Embodiment 1: referring to Fig. 1, utility model parallel running cooling tower group, the cooling tower 1.1 and 1.2 that comprises parallel running (can be for a plurality of, only use two explanations), wherein each cooling tower drip tray A delivery port and 3 in drainpipe have the draining balanced valve 2.1 and 2.2 that can just change adjusted in concert water flow size with water level, make it to adjust the water yield automatically, with balanced each cooling tower drip tray water level according to drip tray water level separately.
Embodiment 2: referring to Fig. 2, the draining balanced valve comprises hollow sphere 7 (also can be hemisphere), and the adjustable arch of a swing valve plate 6 of aperture is arranged on it, and the arch of a swing valve plate connects to form by lever 5 and ball float 4, and wherein the ball float height and position is adjustable.When the drip tray middle water level was higher, the ball float effect made valve plate 6 apertures become big, and drain discharge increases, otherwise opposite.
Embodiment 3: referring to Fig. 3, as embodiment 1, distribution main 8 passes through arm 9.1 and 9.2 respectively to each tower water distribution, and each tower sparge pipe outlet adds into water water distribution adjusting device 10.1 and 10.2, to regulate each tower water distribution automatically.
Embodiment 4: referring to Fig. 4, water inlet water distribution adjusting device, there are high about about 1 meter inner core 11 and urceolus 13 pine covers to combine, water inlet 15 and delivery port 14 are arranged respectively at the inner/outer tube bottom, the inner core side face has a plurality of alternate through hole 12 that vertically rises and arrange in the shape of a spiral, wherein through hole total sectional area 〉=water inlet pipe cross section.During use, the inner core port 15 of intaking is connected with the cooling tower water inlet pipe.
Operation principle: the water distribution water inlet at first enters inner core, overflow by vertical alternate through hole on the inner core side face then and enter urceolus to the cooling tower water distribution, when if flow of inlet water is big, then entering the inner core water yield increases, owing to adopt the through hole water outlet, make part hole water flow always be lower than flow of inlet water, cause the inner core water level to raise, water level raising generation potential energy hydraulic pressure reacts on water inlet pipe has increased the water inlet resistance, makes flow of inlet water reduce.By the connecting pipeline pressure balance principle, increased to the big relatively cooling tower water distribution quantity of former water inlet resistance, thereby made each cooling tower inflow be tending towards roughly balance.Therefore be arranged on the total perforate cross section 〉=water inlet cross section on the inner core simultaneously, flow of inlet water can not occur and produce when especially big and overflow.
Embodiment 5: referring to Fig. 5,6, water inlet water distribution adjusting device, comprise a sealing tube 16, be separated into left intake antrum, right water chamber by longitudinal baffle 17, lower end, two chambeies has water inlet 19 and delivery port 20 respectively, vertical V-shaped groove 18 is arranged on the longitudinal baffle 17, make left and right sides cavity be communicated with V-shaped groove total sectional area 〉=water inlet pipe cross section.
Operation principle is substantially with example 4, and when left side intake antrum flow of inlet water was big, the intake antrum water flow caused the left side water level to raise because of V-shaped groove only is that part increases, thereby has increased the pressure to water inlet pipe, causes into water resistance increase, reduces flow of inlet water.
Embodiment 6: referring to Fig. 7,8, as embodiment 5, about wherein being communicated with on the vertical central dividing plate 21 in two chambeies be vertical alternate by little to large through-hole 22, through hole total sectional area 〉=water inlet pipe cross section.Operation principle is with aforementioned embodiment.
Embodiment 7: referring to Fig. 9, and water inlet water distribution adjusting device, for single simplified 23, side face vertically has effluent trough 24, and into water interface 25 is arranged at the bottom, effluent trough total sectional area 〉=water inlet pipe cross section.Operation principle is with aforementioned embodiment.
Embodiment 8: referring to Figure 10, and water inlet water distribution adjusting device, two cylindrical shells 26.1 arranged side by side and 26.2 about comprising, and the delivery port 28 and the water inlet 30 of lower end, the flooding tube bottom has between 29, two of sewage draining exits has vertically some alternately connection short tubes 27 to link to each other.Communicating pipe is always cut cross section 〉=water inlet pipe cross section.Operation principle is with aforementioned embodiment.
To those skilled in the art; under this patent design and specific embodiment enlightenment; some distortion that can directly derive or associate from this patent disclosure and general knowledge; those of ordinary skills will recognize also can adopt additive method; or the substituting of known technology commonly used in the prior art; and the mutual various combination between feature; the for example change of draining balanced valve and water inlet water distribution adjusting device specific constructive form; the variation of cooling tower quantity in parallel; or the like unsubstantiality change, can be employed equally, can both realize and basic identical function of the foregoing description and effect; launch for example no longer one by one to describe in detail, all belong to this patent protection domain.
Be the convenience on describing, the said water inlet of patent, water distribution are synonym.

Claims (8)

1. parallel running cooling tower group comprises a plurality of cooling towers of parallel running it is characterized in that each cooling tower drip tray delivery port has the draining balanced valve that can just change adjusted in concert water flow size with water level.
2. according to the described parallel running cooling tower of claim 1 group, it is characterized in that the draining balanced valve is a buoyancy aid pulling by-pass valve control aperture valve gear.
3. according to the described parallel running cooling tower of claim 2 group, it is characterized in that buoyancy aid pulling by-pass valve control aperture valve gear, valve body is hollow sphere or hemisphere, forms with the adjustable arch of a swing valve plate of aperture.
4. according to claim 1,2 or 3 described parallel running cooling tower groups, it is characterized in that each cooling tower water distribution water inlet pipe delivery port has side face that vertical slot is arranged or the water inlet water distribution tube of alternate hole or groove is vertically arranged.
5. according to the described parallel running cooling tower of claim 4 group, it is characterized in that into water water distribution tube side face vertical slot and/or vertical alternate hole or groove total sectional area 〉=water inlet pipe cross section.
6. according to the described parallel running cooling tower of claim 4 group, it is characterized in that into water water distribution tube height 500-1500mm.
7. according to the described parallel running cooling tower of claim 4 group, it is characterized in that into water water distribution tube is the telescoping structure that differing heights apopore and/or groove are arranged on the inner core.
8. according to claim 5 or 6 described parallel running cooling tower groups, it is characterized in that into water water distribution tube is the telescoping structure that differing heights apopore and/or groove are arranged on the inner core.
CN2010202182675U 2010-06-02 2010-06-02 Parallel running cooling tower group Expired - Fee Related CN201748849U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047897A (en) * 2012-12-25 2013-04-17 无锡永信能源科技有限公司 Hydraulic power stabilizer for cooling tower
CN104329957A (en) * 2014-09-26 2015-02-04 中建三局第二建设工程有限责任公司 Air conditioner cooling tower group capable of reducing damp and hot air back-mixing ratio
CN105783579A (en) * 2016-05-06 2016-07-20 南京电力设备质量性能检验中心 Expanding unit system running system for natural draft cooling towers and running method
CN110530168A (en) * 2019-09-23 2019-12-03 睿控节能技术服务(深圳)有限公司 Rectangular crossflow cooling tower divides water balance non-resistance regulating box
CN115808961A (en) * 2023-02-17 2023-03-17 北京广通优云科技股份有限公司 Cloud calculates integrated circuit board and uses safe cooling system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047897A (en) * 2012-12-25 2013-04-17 无锡永信能源科技有限公司 Hydraulic power stabilizer for cooling tower
CN103047897B (en) * 2012-12-25 2014-12-17 无锡永信能源科技有限公司 Hydraulic power stabilizer for cooling tower
CN104329957A (en) * 2014-09-26 2015-02-04 中建三局第二建设工程有限责任公司 Air conditioner cooling tower group capable of reducing damp and hot air back-mixing ratio
CN105783579A (en) * 2016-05-06 2016-07-20 南京电力设备质量性能检验中心 Expanding unit system running system for natural draft cooling towers and running method
CN110530168A (en) * 2019-09-23 2019-12-03 睿控节能技术服务(深圳)有限公司 Rectangular crossflow cooling tower divides water balance non-resistance regulating box
CN115808961A (en) * 2023-02-17 2023-03-17 北京广通优云科技股份有限公司 Cloud calculates integrated circuit board and uses safe cooling system

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20110216

Termination date: 20190602