CN105403068B - Cooling tower and its application are combined using the dry and wet of gravity-flow ventilation and combined running pattern - Google Patents
Cooling tower and its application are combined using the dry and wet of gravity-flow ventilation and combined running pattern Download PDFInfo
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- CN105403068B CN105403068B CN201510810682.7A CN201510810682A CN105403068B CN 105403068 B CN105403068 B CN 105403068B CN 201510810682 A CN201510810682 A CN 201510810682A CN 105403068 B CN105403068 B CN 105403068B
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Abstract
The invention belongs to using energy source and Engineering Thermophysics technical field, and in particular to combine cooling tower and its application using the dry and wet of gravity-flow ventilation and combined running pattern.The dry and wet combines cooling tower, including tower body, supporting construction, dry and cold section, clammy section and flow distributing system；Tower body uses hyp form, is supported on by supporting construction on ground；Dry and cold section and clammy section are vertically integrated to be arranged in same cooling tower；The dry and cold section of top for being located at clammy section；Described dry and cold section includes cooling dry and cold section of shutter of trigonometric sum；Described clammy section includes dehydrater, water distribution system, packing area, collecting-tank and clammy section of shutter；The flow distributing system includes total inlet and outlet pipeline, dry and cold section of inlet and outlet pipeline, clammy section of inlet and outlet pipeline, valve and circulating pump.The present invention is high without blower fan wasted work, cooling effectiveness, can provide relatively low outlet water temperature, saving water resource.
Description
Technical field
The invention belongs to using energy source and Engineering Thermophysics technical field, and in particular to using gravity-flow ventilation and combined running
The dry and wet joint cooling tower of pattern and its application.
Background technology
In the fields such as the energy, electric power, chemical industry, steel, pharmacy, there are many production links to cool down in time and just can guarantee that
Production process continuous and steady operation.
By taking thermal power generation as an example, the steam discharge cooling of steam turbine is become into condensate and is not only in Steam Power Circulation to pass weight
The process wanted, and the effect (cooldown rate, exothermic temperature) cooled down can also influence the efficiency of power cycle.Good cooling can
To improve the energy utilization rate of thermal power generation, the energy-saving and emission-reduction of power generation are realized.
Traditional thermoelectricity uses clammy mode, and turbine discharge is by surface condenser by heat dissipation to circulating cooling
Water, absorb the recirculated cooling water after heat and be sent into wet cooling tower, directly contacted with air in Ta Nei and carry out heat convection and steaming
Hair heat exchange, realizes the cooling of recirculated cooling water.The remarkable advantage that wet type cooling possesses is can to do circulating water to air
Below ball temperature, close to air's wet bulb temperature.Evaporation and air due to recirculated cooling water itself carry the reasons such as water droplet, follow
Certain loss is had in cooling procedure for ring cooling water, it is necessary to lasting moisturizing.In addition, wet cooling tower outlet air is in full
And state, such as being mixed with cool ambient air can cause moisture to separate out, and produce water smoke, surrounding environment is had a negative impact.
With the increasingly scarcity of water resource, using traditional thermoelectricity of clammy mode, because it needs to consume in the process of running
Great lot of water resources and the factor such as have a negative impact to environment and be faced with severe challenge.Three backlands of the few water of richness coal in China
Area, objectively it is difficult to fully ensure the water resources quantity needed for clammy generating.Compared to clammy generating, with air and gas turbine exhaust gas
Or air cooling (dry and cold) generation technology of different transfer of heat has obtained increasingly extensive answer in recent years between air and recirculated cooling water
With.
Air cooling system mainly has three kinds：Indirect air cooling system (the Harmon formula system of direct air cooling system, belt surface formula condenser
System) and indirect air cooling system (Hai Leshi systems) with injecting type (hybrid) condenser.In direct air cooling system, steam turbine row
Heat is directly discharged in surrounding air by gas by finned tube exchanger, it is not necessary to recirculated cooling water；In indirect air cooling system
Recirculated cooling water is independent closed system, and circulation water loss is seldom, need not supplement substantially.
Although air cooling system has the remarkable advantage of saving water resource, its there is also it is intrinsic the shortcomings that.Direct air cooled system
In system, the diameter fan for driving fin outer tube air flow needs to consume the generated energy in power plant 1%~1.5%, and
Produce noise.In Harmon formula indirect cooling system, recirculated cooling water is needed by exchanging heat twice, and heat-transfer effect is poor, in identical
Design under temperature condition, turbine back pressure is higher, and unit economy is low.Hai Leshi indirect cooling systems use hybrid condensing
Device, equipment is numerous, system complex, and needs substantial amounts of precision processing water, and water process is costly.In summer, the dry bulb of surrounding air
When temperature is higher, above-mentioned three kinds of heat transfer temperature differences between air cooling system and surrounding air reduce, and cause turbine back pressure liter in power plant
Height, unit economy decline.
Under country energetically call energy-saving and emission-reduction, the overall background built a resource-conserving society, in the energy, electric power, chemical industry
In production process Deng field, realize that efficiently cooling can significantly improve efficiency of energy utilization, save the valuable sources such as water, electricity.
The present invention on the basis of existing dry and cold and clammy, it is both comprehensive the advantages of, developed new joint cooling system.
The content of the invention
For overcome the deficiencies in the prior art, the invention provides a kind of using the dry of gravity-flow ventilation and combined running pattern
Wet joint cooling tower and its application, concrete technical scheme are as follows：
It is dry and cold using the dry and wet of gravity-flow ventilation and combined running pattern joint cooling tower, including tower body 1, supporting construction 15
Section, clammy section and flow distributing system；Tower body 1 uses hyp form, is supported on by supporting construction 15 on ground；Support
Structure 15 is " X " type post or " people " font post；Dry and cold section and clammy section are vertically integrated to be arranged in same cooling tower；
The dry and cold section of top for being located at clammy section；
Described dry and cold section includes cooling triangle 2 and dry and cold section of shutter 3；Cooling triangle 2 is used as heat-exchanger rig, perpendicular by two
Straight air cooled fin tube beam is each other in 30 °~120 ° compositions, and 100~2000 cooling units of triangle 2 are outside Ta Nei or tower around tower
Arrange within one week, dry and cold section of shutter 3 is circumferentially disposed peripheral in cooling triangle 2, as air intake；Dry and cold section of equipment
Setting height(from bottom) is higher than the height of dry and cold section of equipment in traditional indirect air cooling；
Described clammy section includes dehydrater 4, water distribution system 5, packing area 6, collecting-tank 8 and clammy section of shutter 16；Water distribution
System 5 introduces cool water shower to packing area 6, cooling water in collecting-tank 8 behind packing area 6 and air heat-exchange；Clammy section of sky
Gas absorbs the air after heat and moisture and imported in cooling tower, formed upward by entering packing area 6 after clammy section of shutter 16
Suction force；
The flow distributing system include general import pipeline 17, general export pipeline 18, dry and cold section of inlet pipeline 19, dry and cold section
Outlet conduit 20, clammy section of inlet pipeline 21, clammy section of outlet conduit 22, the connecting pipe of dry and cold section of outlet and clammy section of import
23rd, valve A~valve E (9~13) and circulating pump 14；Valve A, dry and cold section of outlet conduit 20 are installed on dry and cold section of inlet pipeline 19
Upper installation valve D, dry and cold section of outlet is with installing valve B on the connecting pipe 23 of clammy section of import, on clammy section of inlet pipeline 21
Valve C is installed, valve E is installed on clammy section of outlet conduit 22, circulating pump 14 is installed on general export pipeline 18.
Further, described clammy section includes reverse-flow and two kinds of arrangements of cross-flow type.
When using reverse-flow clammy section, also include rain belt 7 in clammy section of composition；Reverse-flow clammy section of locations of structures
Dehydrater 4, water distribution system 5, packing area 6, rain belt 7, clammy section of shutter 16 and collecting-tank 8 are followed successively by from top to bottom；Dehydrater
4th, the filler in the spray equipment and packing area 6 in water distribution system 5 is horizontally disposed in tower；The filler is uniform or non-homogeneous
Arrangement；Supporting construction 15 is used as air intake.
When using clammy section of cross-flow type, collecting-tank 8 is located at bottom in tower, and dehydrater 4 is arranged vertically at tower edge, is matched somebody with somebody
The filler in distribution reservoir and packing area 6 in water system 5 is horizontally disposed outside tower edge or tower；The filler is uniform or non-equal
Even arrangement；Clammy section of shutter 16 is used as air intake.
Dry and cold section, positioned at clammy section of top, is connected by flow distributing system between the two；Dry and cold section is to use finned tube etc.
The air of heat exchanger-recirculated water heat exchange mode, clammy section is heat convection and vapor cooling system.Between dry and cold section and clammy section
Distance, cooling water flow can be chosen according to actual conditions such as local meteorological conditions.
Application of the dry and wet joint cooling tower as described above in terms of cooling.
Dry and cold section of air cooled fin tube beam, pipe internal flow are water, and fluid is air between managing outer fin, in cooling tower certainly
Under swabbing action caused by right convection current, air flows through air cooled fin tube beam from bottom to top, and water side heat is passed and taken away；Cool down triangle
Dry and cold section of shutter 3 of 2 peripheries is used to control air side air intake.
In reverse-flow clammy section, the flowing of water side is to pass through water distribution system 5, packing area 6 and rain belt 7 successively from top to down, its
In, cool water shower to packing area 6, cooling water are completed the heat and mass with air by water distribution system 5 in packing area 6 and rain belt 7,
Collecting-tank 8 is finally reached to mix；Air side flow is to be entered outside tower by supporting construction 15 in tower, passes through clammy section of shutter
After 16, in the heated risings in rain belt 7, rain belt 7, packing area 6, water distribution system 5 and dehydrater 4 are passed sequentially through, reaches dry and cold fragment position,
With flow through this be in dry and cold section absorb heat after hot-air mix.
In clammy section of cross-flow type, the flowing of water side is to pass through water distribution system 5 and packing area 6, water distribution system 5 successively from top to down
By cool water shower to packing area 6, cooling water completes the heat and mass with air in packing area 6, and it is mixed finally to reach collecting-tank 8
Close；Air side flow is connect to enter packing area 6 by clammy section of shutter 16 outside tower with recirculated water or recirculated cooling water
Heat convection is touched, is then entered by dehydrater 4 and supporting construction 15 in tower, is risen to dry and cold fragment position, be in flowing through this
The hot-air mixing of dry and cold section of absorption heat.
The effect of dehydrater 4 is to collect the aqueous water carried secretly in Hot wet air heating, collecting-tank 8 is introduced, to reach the mesh of water saving
's.
Further, according to thermic load and Meteorological Elements in China, dry and cold section uses with clammy section of adverse current or clammy section of crossing current
A pair of cooling waters of following combined running mode are cooled down：
A) whole cooling waters first pass through dry and cold section, after by clammy section of series operation mode --- now, assignment of traffic
Valve A, valve B and valve E are shown in a fully open operation in system, and valve C and valve D are in the completely closed state, dry and cold section of blinds
Window 3 and clammy section of shutter 16 are in open mode；
B) cooling water is by a certain percentage independently by dry and cold section and clammy section of parallel running mode --- now, stream
Valve A, valve C, valve D and valve E are in open mode in amount distribution system, and valve B is in the completely closed state, dry and cold section
Shutter 3 and clammy section of shutter 16 are in open mode；
C) whole cooling waters first pass through dry and cold section, rear portion pass through clammy section, the mixing of the direct backwater of another part
The method of operation --- now, valve A and valve E are shown in a fully open operation in flow distributing system for flowing, and valve C is in and completely closed
State, valve B and valve D are in certain aperture state, and dry and cold section of shutter 3 and clammy section of shutter 16 are in open mode；
D) cooling water is first by a certain percentage independently by dry and cold section and clammy section, wherein flowing through dry and cold section of cooling water
Pass through clammy section of the mixed flow method of operation --- now, valve B and valve E is in standard-sized sheet shape in flow distributing system
State, valve D is in the completely closed state, and valve A and valve C are in certain aperture state, dry and cold section of shutter 3 and clammy section hundred
Leaf window 16 is in open mode.
When thermic load is relatively low or system overhaul, dry and cold section and clammy section also can isolated operation.When dry and cold section or clammy
During section isolated operation mode, merely through dry and cold section and one of clammy section, another section is in and completely closes for cooling water and cooling air
State.Individually during dry and cold section of operation, valve A and valve D is shown in a fully open operation in flow distributing system, valve B, valve C and valve
Door E is in the completely closed state, and dry and cold section of shutter 3 is in open mode；Using it is individually clammy when, valve in flow distributing system
Door C and valve E is shown in a fully open operation, and valve A, valve B and valve D are in the completely closed state, and clammy section of shutter 16 is in
Open mode.
Of the present invention is a kind of using natural ventilation system, the cooling tower for reducing circulating water temperature, cooling tower
Using surrounding air as final cooling medium, two kinds of coolings of integrated use different transfer of heat (dry and cold) and evaporation cooling (clammy) in tower
Mode, with reference to Practical Meteorological Requirements condition, using the combined running pattern of series, parallel or mixture length, it can not only economize on water but also can be with
Relatively low outlet water temperature is provided in summer high temperature, can be used in the fields such as the energy, electric power, chemical industry, steel, pharmacy.This hair
Bright has the beneficial effect that：
(1) Double curve tower-shape is used, by Effect of Nature Convection, suction force can be formed in tower upper and lower, without blower fan
Air flow is driven, saves a large amount of electric energy；
(2) using it is dry, clammy section be vertically arranged in same cooling tower up and down by the way of, make full use of empty in tower
Between；
(3) using dry, clammy section of combined layout mode so that thermal source at two above and below having in a tower, enhance nature pair
Stream and its suction force, under the certain requirement of required suction force, can reduce the height of tower and the diameter of tower, reduce the occupation of land of tower
Area, reduce the initial costs such as the capital construction cost of tower；
(4) using dry, clammy section of cooperation so that water side thermal discharge increases, and can provide lower outlet water temperature, drops
Low power plant steam turbine back pressure, improve generating efficiency；
(5) clammy section of top is arranged in by dry and cold section, dry and cold section of outlet dry air is exported close to the wet of saturation with clammy section
Air mixes, and air humidity reduces after mixing, avoids cooling tower outlet atomization, reduces to cooling tower surrounding environment influence；
(6) dry and cold section of operation throughout the year, clammy section is enabled when environment temperature is too high and carries out joint cooling, it is possible to reduce Nian Yun
Clammy water evaporation loss in row, save the year operation rate of water make-up of recirculated cooling water；
(7) done using flow distributing system regulation, clammy section of operational mode so that cooling tower is to various environment weather bars
The strong adaptability of part, region are applicable wider；
(8) when safeguarding can dry and cold section or clammy section of isolated operation, avoid cooling tower from stopping transport completely and cause production disruption, reduce
The economic loss of stoppage in transit.
Brief description of the drawings
Fig. 1 is structure and schematic flow sheet of the present invention using reverse-flow clammy section.
Fig. 2 is the structure and schematic flow sheet that the present invention uses clammy section of cross-flow type.
Fig. 3 is the appearance schematic diagram that the present invention uses reverse-flow clammy section.
Fig. 4 is the appearance schematic diagram that the present invention uses clammy section of cross-flow type.
Fig. 5 is to cool down triangle and the schematic diagram of dry and cold section of shutter arrangement.
The concrete meaning of each label is in figure：1- tower bodies, 2- cooling triangles, dry and cold section of shutter of 3-, 4- dehydraters, 5- match somebody with somebody
Water system, 6- packing areas, 7- rain belts, 8- collecting-tanks, 9- valves A, 10- valve B, 11- valve C, 12- valve D, 13- valve E,
14- circulating pumps, 15- supporting constructions, clammy section of shutter of 16-, 17- general import pipelines, 18- general export pipelines, dry and cold section of 19- enter
Mouthful pipeline, dry and cold section of outlet conduit of 20-, clammy section of inlet pipeline of 21-, clammy section of outlet conduit of 22-, dry and cold section of outlet of 23- with
The connecting pipe of clammy section of import.
Embodiment
Embodiment 1：Complete series operation
When Meteorological Elements in China is in high temperature, high humidity, heat transfer boundary condition is poor, to make full use of the cold of dry and cold section and clammy section
But ability, dry and cold section and clammy section of series operation mode can be used so that outlet water temperature meets to require.Referring to Fig. 1 and Fig. 2, stream
Valve A, valve B and valve E are shown in a fully open operation in amount distribution system, and valve C and valve D are in the completely closed state, dry and cold
Section shutter 3 and clammy section of shutter 16 are in open mode.
For cooling down the recirculated cooling water of steam turbine condensing first all by dry and cold section of cooling triangle finned-tube bundle and sky
Gas exchanges heat, and then all arrives at clammy section of water distribution system 5, it is reverse-flow it is clammy in then pass through lower section packing area 6 and rain belt 7 with
Air reaches collecting-tank 8 after carrying out heat exchange and mass transfer；Lower section packing area 6 is then passed through during cross-flow type is clammy to be exchanged heat with air
With arrival collecting-tank 8 after mass transfer；Most 14 are returned to turbine condenser cooling gas turbine exhaust gas through circulating pump afterwards.
Embodiment 2：Complete parallel running
When Meteorological Elements in China, to be in temperature higher and when having more water resource to utilize, can use dry and cold section with it is wet
Cold section of parallel running mode so that outlet water temperature meets to require.Referring to Fig. 1 and Fig. 2, valve A in flow distributing system, valve C,
Valve D and valve E is in open mode, and valve B is in the completely closed state, dry and cold section of shutter 3 and clammy section of shutter 16
In open mode.
The cooling water come out from turbine condenser is separately by dry and cold section and clammy section, two-part flow-rate ratio
Example can be adjusted by the aperture of valve.At dry and cold section, cooling water in triangle finned-tube bundle 2 is cooled down with air heat-exchange；Wet
Cold section, cooling water enters water distribution system 5, and reverse-flow clammy middle water distribution system of passing through sprays downwards, in lower section packing area 6 and rain belt
7 are exchanged heat and mass transfer with air, rear to reach collecting-tank 8；Sprayed downwards by water distribution system 5 in cross-flow type, in lower section filler
Area 6 is exchanged heat with air and mass transfer, rear to reach collecting-tank 8.The cooling water of last dry and cold section of outlet 20 and clammy section of outlet 22
Cooling water mixing, through circulating pump 14 return to turbine condenser cooling gas turbine exhaust gas.
Embodiment 3：Parallel running after first connecting
When environment temperature is in temperature is higher but water resource is less when, after dry and cold section can be flowed through using whole flows, part
Flow passes through clammy section of the method for operation.Referring to Fig. 1 and Fig. 2, valve A and valve E are shown in a fully open operation in flow distributing system,
Valve C is in the completely closed state, and valve B and valve D are in certain aperture state, dry and cold section of shutter 3 and clammy section of blinds
Window 16 is in open mode.
The cooling water come out from turbine condenser whole flows in cooling tower are changed by dry and cold section 2 with air
Heat, continue through clammy section with rear portion flow and exchanged heat with air, then this partial discharge is not with flowing through clammy section
Exported after flow mixing.
Embodiment 4：Completely dry cold operation
When Meteorological Elements in China is in winter low temperature, or clammy section when needing to safeguard, can use dry and cold section of isolated operation
Mode.Referring to Fig. 1 and Fig. 2, valve A and valve D has been in open state, valve 10, valve 11 and valve in flow distributing system
13 is in the completely closed state, and dry and cold section of shutter 3 is in open mode, and clammy section of shutter 16 is closed.From vapour
The cooling water that turbine condenser comes out only is exchanged heat in cooling tower by dry and cold section 2 with air, reaches the effect of water saving.
Embodiment 5：Complete clammy operation
When needing to safeguard for dry and cold section, clammy section of isolated operation mode can be used.Referring to Fig. 1 and Fig. 2, flow distributing system
Middle valve C and valve E are shown in a fully open operation, and valve A, valve B and valve D are in the completely closed state, at dry and cold section of shutter 3
In closed mode, clammy section of shutter 16 is in open mode.From turbine condenser come out cooling water in cooling tower only
Exchanged heat by clammy section with air, to meet the requirement of low outlet water temperature.
Claims (1)
1. a kind of application for combining cooling tower using the dry and wet of gravity-flow ventilation and combined running pattern, wherein, cooling tower includes tower
Body (1), supporting construction (15), dry and cold section, clammy section and flow distributing system；Tower body (1) uses hyp form, by supporting
Structure (15) is supported on ground；Dry and cold section and clammy section are vertically integrated to be arranged in same cooling tower；It is dry and cold
Section is located at clammy section of top；
Described dry and cold section includes cooling triangle (2) and dry and cold section of shutter (3)；Cooling triangle (2) is used as heat-exchanger rig, by two
Vertical air cooled fin tube beam is each other in 30 °~120 ° compositions, and 100~2000 cooling triangle (2) units are outside Ta Nei or tower
Arranged within one week around tower, dry and cold section of shutter (3) is circumferentially disposed peripheral in cooling triangle (2), as air intake；It is dry and cold
The setting height(from bottom) of section equipment is higher than the height of dry and cold section of equipment in traditional indirect air cooling；
Described clammy section includes dehydrater (4), water distribution system (5), packing area (6), collecting-tank (8) and clammy section of shutter
(16)；Water distribution system (5) catchments cool water shower to packing area (6), cooling water in packing area (6) with being introduced after air heat-exchange
In pond (8)；Clammy section of air enters packing area (6) afterwards by clammy section of shutter (16), absorbs the air after heat and moisture
Import in cooling tower, form upward suction force；
The flow distributing system includes general import pipeline (17), general export pipeline (18), dry and cold section of inlet pipeline (19), dry and cold
Section outlet conduit (20), clammy section of inlet pipeline (21), clammy section of outlet conduit (22), dry and cold section of outlet and clammy section of import
Connecting pipe (23), valve A (9), valve B (10), valve C (11), valve D (12), valve E (13) and circulating pump (14)；It is dry
Valve A (9) is installed on cold section of inlet pipeline (19), valve D (12) is installed on dry and cold section of outlet conduit (20), dry and cold section of outlet with
Valve B (10) is installed on the connecting pipe (23) of clammy section of import, valve C (11) is installed on clammy section of inlet pipeline (21), it is wet
Valve E (13) is installed on cold section of outlet conduit (22), circulating pump (14) is installed on general export pipeline (18)；
Described clammy section includes reverse-flow and two kinds of arrangements of cross-flow type；
When using reverse-flow clammy section, also include rain belt (7) in clammy section of composition；Reverse-flow clammy section of locations of structures from
On be down followed successively by dehydrater (4), water distribution system (5), packing area (6), rain belt (7), clammy section of shutter (16) and collecting-tank
(8)；Dehydrater (4), the spray equipment in water distribution system (5) and the filler in packing area (6) are arranged vertically in tower；It is described to fill out
Expect for uniform or nonuniform mutation operator；Supporting construction (15) is used as air intake；
When using clammy section of cross-flow type, collecting-tank (8) is located at bottom in tower, and dehydrater (4) is arranged vertically at tower edge, is matched somebody with somebody
The filler in distribution reservoir and packing area (6) in water system (5) is horizontally disposed outside tower edge or tower；The filler for uniformly or
Nonuniform mutation operator；Clammy section of shutter (16) is used as air intake；
The cooling tower of structure in accordance with the above, it is characterised in that clammy section of described dry and cold section, clammy section of adverse current or crossing current use
A pair of cooling waters of following combined running mode are cooled down：A) complete series operation：When Meteorological Elements in China be in high temperature,
During high humidity, heat transfer boundary condition is poor, to make full use of the cooling capacity of dry and cold section and clammy section, can be connected using dry and cold section with clammy section
The method of operation so that outlet water temperature meets to require；Now, valve A (9), valve B (10) and valve E in flow distributing system
(13) it is shown in a fully open operation, valve C (11) and valve D (12) are in the completely closed state, dry and cold section of shutter (3) and clammy section
Shutter (16) is in open mode；
Recirculated cooling water for cooling down steam turbine condensing first all changes by dry and cold section of cooling triangle finned-tube bundle with air
Heat, then all arrive at clammy section of water distribution system (5), below reverse-flow clammy middle process packing area (6) and rain belt (7) with
Air reaches collecting-tank (8) after carrying out heat exchange and mass transfer；Packing area (6) is changed with air below the clammy middle process of cross-flow type
Collecting-tank (8) is reached after heat and mass transfer；Most return to turbine condenser cooling gas turbine exhaust gas through circulating pump (14) afterwards；
B) complete parallel running：When Meteorological Elements in China, to be in temperature higher and when having more water resource to utilize, and can use
Dry and cold section and clammy section of parallel running mode so that outlet water temperature meets to require；Now, valve A (9) in flow distributing system,
Valve C (11), valve D (12) and valve E (13) are shown in a fully open operation, and valve B (10) is in the completely closed state, dry and cold section hundred
Leaf window (3) and clammy section of shutter (16) are in open mode；
For the cooling water come out from turbine condenser separately by dry and cold section and clammy section, two-part flow proportional can
Adjusted with aperture by valve；At dry and cold section, cooling water in cooling triangle finned-tube bundle (2) with air heat-exchange；Clammy
Section, cooling water enter water distribution system (5), are sprayed downwards in reverse-flow clammy middle process water distribution system (5), in lower section packing area
(6) and rain belt (7) are exchanged heat with air and mass transfer, reach collecting-tank (8) afterwards；Middle pass through water distribution system cross-flow type is clammy
(5) spray downwards, collecting-tank (8) is reached after heat exchange and mass transfer are carried out in lower section packing area (6) and air；Last dry and cold section of outlet
(20) cooling water is mixed with the cooling water of clammy section of outlet (22), and turbine condenser cooling steamer is returned to through circulating pump (14)
Machine is vented；
C) parallel running after first connecting：When environment temperature is in temperature is higher but water resource is less when, whole flows can be used first
Dry and cold section is flowed through, then partial discharge passes through clammy section of the method for operation；Now, valve A (9) and valve in flow distributing system
E (13) is shown in a fully open operation, and valve C (11) is in the completely closed state, and valve B (10) and valve D (12) are in certain aperture
State, dry and cold section of shutter (3) and clammy section of shutter (16) are in open mode；
The cooling water come out from turbine condenser is all exchanged heat in cooling tower by dry and cold section (2) with air, then
A part of flow continues through clammy section and exchanged heat with air, and then this partial discharge mixes with not flowing through clammy section of flow
Close, turbine condenser cooling gas turbine exhaust gas is returned to through circulating pump (14)；
D) completely dry cold operation：When Meteorological Elements in China is in winter low temperature, or clammy section when needing to safeguard, can use dry and cold
Section isolated operation mode；Now, valve A (9) and valve D (12) are shown in a fully open operation in flow distributing system, valve B (10),
Valve C (11) and valve E (13) are in the completely closed state, and dry and cold section of shutter (3) is in open mode, clammy section of shutter
(16) it is closed；The cooling water come out from turbine condenser only enters in cooling tower by dry and cold section (2) with air
Row heat exchange, reach the effect of water saving；
E) clammy operation completely：When needing to safeguard for dry and cold section, clammy section of isolated operation mode can be used；Now, assignment of traffic
Valve C (11) and valve E (13) are shown in a fully open operation in system, and valve A (9), valve B (10) and valve D (12) are in complete
Closed mode, dry and cold section of shutter (3) are closed, and clammy section of shutter (16) is in open mode；Coagulated from steam turbine
The cooling water that vapour device comes out only is exchanged heat in cooling tower by clammy section with air, to meet the requirement of low outlet water temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810682.7A CN105403068B (en) | 2015-11-20 | 2015-11-20 | Cooling tower and its application are combined using the dry and wet of gravity-flow ventilation and combined running pattern |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810682.7A CN105403068B (en) | 2015-11-20 | 2015-11-20 | Cooling tower and its application are combined using the dry and wet of gravity-flow ventilation and combined running pattern |
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| Publication Number | Publication Date |
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| CN105403068A CN105403068A (en) | 2016-03-16 |
| CN105403068B true CN105403068B (en) | 2017-11-28 |
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| CN201510810682.7A Active CN105403068B (en) | 2015-11-20 | 2015-11-20 | Cooling tower and its application are combined using the dry and wet of gravity-flow ventilation and combined running pattern |
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| CN109029001A (en) * | 2018-06-15 | 2018-12-18 | 武汉科技大学 | A kind of no leaf blower air conditioner cooling tower |
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| FR2452686A1 (en) * | 1979-03-29 | 1980-10-24 | Hamon Sobelco Sa | CHANNEL DEVICE FOR MIXING DRY AND WET FLOWS OF MIXED ATMOSPHERIC REFRIGERANT WITH PARALLEL AIR FLOWS |
| CN2594750Y (en) * | 2002-09-24 | 2003-12-24 | 徐宝安 | Air and water composite cooling tower |
| CN100498179C (en) * | 2006-07-21 | 2009-06-10 | 清华大学 | Antifreezing and fogging water-saving cooling tower |
| CN104165532B (en) * | 2014-07-31 | 2016-07-06 | 中化工程沧州冷却技术有限公司 | Air cooling clammy association type water saving fog dispersal cooling tower |
| CN205245827U (en) * | 2015-11-20 | 2016-05-18 | 华北电力大学 | Adopt wet joint cooling tower of doing of natural draft and compound operational mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109029001A (en) * | 2018-06-15 | 2018-12-18 | 武汉科技大学 | A kind of no leaf blower air conditioner cooling tower |
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