CN105403068A - Dry-wet unified cooling tower adopting natural ventilation and composite running mode and application of dry-wet unified cooling tower - Google Patents

Dry-wet unified cooling tower adopting natural ventilation and composite running mode and application of dry-wet unified cooling tower Download PDF

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CN105403068A
CN105403068A CN201510810682.7A CN201510810682A CN105403068A CN 105403068 A CN105403068 A CN 105403068A CN 201510810682 A CN201510810682 A CN 201510810682A CN 105403068 A CN105403068 A CN 105403068A
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cooling section
dry
cooling
wet
valve
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CN105403068B (en
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陈林
杜小泽
黄钰琛
杨立军
魏高升
张辉
李莉
杨勇平
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North China Electric Power University
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North China Electric Power University
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Abstract

本发明属于能源利用与工程热物理技术领域,具体涉及采用自然通风及复合运行模式的干湿联合冷却塔及其应用。所述干湿联合冷却塔,包括塔体,支撑结构,干冷段,湿冷段和流量分配系统;塔体采用双曲线的形式,由支撑结构支撑在地面之上;干冷段和湿冷段沿垂直方向集成布置在同一个冷却塔内;干冷段位于湿冷段的上方;所述干冷段包括冷却三角和干冷段百叶窗;所述湿冷段包括除水器、配水系统、填料区、集水池和湿冷段百叶窗;所述流量分配系统包括总进出口管道,干冷段进出口管道,湿冷段进出口管道,阀门和循环泵。本发明无需风机耗功、冷却效率高,可以提供较低出塔水温,节约水资源。

The invention belongs to the technical field of energy utilization and engineering thermophysics, and specifically relates to a dry-wet combined cooling tower adopting natural ventilation and combined operation mode and its application. The dry-wet combined cooling tower includes a tower body, a supporting structure, a dry cooling section, a wet cooling section and a flow distribution system; the tower body is in the form of a hyperbola, supported on the ground by a supporting structure; the dry cooling section and the wet cooling section are vertically Integrated in the same cooling tower; the dry-cooling section is located above the wet-cooling section; the dry-cooling section includes cooling triangles and dry-cooling section louvers; the wet-cooling section includes water eliminators, water distribution systems, filling areas, sumps and wet-cooling section louvers The flow distribution system includes the total inlet and outlet pipelines, the inlet and outlet pipelines of the dry cooling section, the inlet and outlet pipelines of the wet cooling section, valves and circulating pumps. The invention does not require fan power consumption, has high cooling efficiency, can provide lower water temperature out of the tower, and saves water resources.

Description

Adopt dry wet associating cooling tower and the application thereof of gravity-flow ventilation and combined running pattern
Technical field
The invention belongs to using energy source and Engineering Thermophysics technical field, be specifically related to the dry wet associating cooling tower and the application thereof that adopt gravity-flow ventilation and combined running pattern.
Background technology
In the fields such as the energy, electric power, chemical industry, iron and steel, pharmacy, there are many production links must cool guarantee production process continuous and steady operation in time.
For thermal power generation, the cooling of the steam discharge of steam turbine is become condensate water and is not only vital process in Steam Power Circulation, and the effect (cooldown rate, exothermic temperature) of cooling also can affect the efficiency of power cycle.Good cooling can improve the energy utilization rate of thermal power generation, realizes the energy-saving and emission-reduction of power generation.
Tradition thermoelectricity adopts clammy mode, turbine discharge by surface condenser by heat dissipation to recirculated cooling water, absorb the recirculated cooling water after heat and send into wet cooling tower, directly to contact with air at Ta Nei and carry out heat convection and evaporation and heat-exchange, realize the cooling of recirculated cooling water.It is can by below circulating water to air dry-bulb temperature that wet type cools the remarkable advantage had, close to air ' s wet bulb temperature.Because the evaporation of recirculated cooling water self and air carry the reasons such as water droplet, recirculated cooling water has certain loss in cooling procedure, needs lasting moisturizing.In addition, wet cooling tower outlet air is in saturation state, moisture can be caused to separate out as mixed with cool ambient air, produces water smoke, has a negative impact to surrounding environment.
Along with the scarcity day by day of water resource, adopt traditional thermoelectricity of clammy mode, because it needs consume great lot of water resources and be faced with severe challenge to factors such as environment have a negative impact in running.In the three northern areas of China of the few water of the rich coal of China, be objectively difficult to the water resources quantity fully ensured needed for clammy generating.Compare clammy generating, use air and gas turbine exhaust gas or between air and recirculated cooling water, air cooling (dry and cold) generation technology of different transfer of heat obtains increasingly extensive application in recent years.
Air cooling system mainly contains three kinds: the indirect air cooling system (Harmon formula system) of direct air cooling system, belt surface formula condenser and the indirect air cooling system (Hai Leshi system) of band injecting type (hybrid) condenser.In direct air cooling system, heat is directly discharged in surrounding air by finned tube exchanger by gas turbine exhaust gas, does not need recirculated cooling water; In indirect air cooling system, recirculated cooling water is independentclosed system, recirculated water loss seldom, does not need to supplement substantially.
Although air cooling system has the remarkable advantage of saving water resource, also there is intrinsic shortcoming in it.In direct air cooling system, need the generated energy consuming power plant 1% ~ 1.5% for driving diameter fan that fin outer tube air flows, and produce noise.In Harmon formula indirect cooling system, recirculated cooling water needs through twice heat exchange, and heat-transfer effect is poor, and under identical design temperature condition, turbine back pressure is higher, and unit economy is low.Hai Leshi indirect cooling system adopts direct-contact type condenser, and equipment is numerous, system complex, and needs a large amount of precision processing water, and water treatment costly.In summer, when the dry-bulb temperature of surrounding air is higher, above-mentioned three kinds of heat transfer temperature differences between air cooling system and surrounding air reduce, and cause turbine back pressure in power plant to raise, unit economy declines.
? countryunder calling energy-saving and emission-reduction, the overall background of building a resource-conserving society energetically, in the production process in the fields such as the energy, electric power, chemical industry, realize high efficiency cooling and can significantly improve efficiency of energy utilization, save the valuable source such as water, electricity.The present invention is on existing dry and cold and clammy basis, and comprehensively both advantage, has developed novelassociating cooling system.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of dry wet associating cooling tower and the application thereof that adopt gravity-flow ventilation and combined running pattern, concrete technical scheme is as follows:
Adopt the dry wet associating cooling tower of gravity-flow ventilation and combined running pattern, comprise tower body 1, supporting construction 15, dry and cold section, clammy section and flow distributing system; Tower body 1 adopts hyp form, is supported on ground by supporting construction 15; Supporting construction 15 is " X " type post or " people " font post; Dry and cold section and clammy section is vertically integratedly arranged in same cooling tower; Dry and cold section is positioned at the top of clammy section;
Described dry and cold section comprises cooling triangle 2 and dry and cold section of shutter 3; Cooling triangle 2 is as heat-exchanger rig, be made up of each other in 30 ° ~ 120 ° two vertical air cooled fin tube bundles, 100 ~ 2000 cooling triangle 2 unit are arranged around tower outside Ta Nei or tower for one week, and dry and cold section of shutter 3 is along the circumferential direction arranged in cooling triangle 2 periphery, as air intake; The setting height(from bottom) of dry and cold section of equipment is higher than the height of dry and cold section of equipment in traditional indirect air cooling;
Described clammy section comprises dehydrater 4, water distribution system 5, packing area 6, collecting-tank 8 and clammy section of shutter 16; Water distribution system 5 is by cool water shower to packing area 6, and cooling water is introduced in collecting-tank 8 behind packing area 6 with air heat-exchange; Clammy section of air, by entering packing area 6 after clammy section of shutter 16, absorbs the air after heat and moisture and imports in cooling tower, form suction force upwards;
Described flow distributing system comprises general import pipeline 17, general export pipeline 18, dry and cold section of inlet pipeline 19, dry and cold section of outlet conduit 20, clammy section of inlet pipeline 21, clammy section of outlet conduit 22, the connecting pipe 23 of dry and cold section of outlet and clammy section of import, valve A ~ valve E (9 ~ 13) and circulating pump 14; Mounted valve A on dry and cold section of inlet pipeline 19, mounted valve D on dry and cold section of outlet conduit 20, dry and cold section of outlet and mounted valve B in the connecting pipe 23 of clammy section of import, mounted valve C on clammy section of inlet pipeline 21, mounted valve E on clammy section of outlet conduit 22, general export pipeline 18 is installed circulating pump 14.
Further, described clammy section comprises reverse-flow and cross-flow type two kinds of arrangements.
When adopting reverse-flow clammy section, in the composition of clammy section, also comprise rain belt 7; The locations of structures of reverse-flow clammy section is followed successively by dehydrater 4, water distribution system 5, packing area 6, rain belt 7, clammy section of shutter 16 and collecting-tank 8 from top to bottom; Spray equipment in dehydrater 4, water distribution system 5 and the filler in packing area 6 horizontally disposed in tower; Described filler is even or nonuniform mutation operator; Supporting construction 15 is as air intake.
When adopting clammy section of cross-flow type, collecting-tank 8 is positioned at tower bottom, and dehydrater 4 is vertically arranged at tower edge, the filler in the distribution reservoir in water distribution system 5 and packing area 6 tower edge or tower outer horizontally disposed; Described filler is even or nonuniform mutation operator; Clammy section of shutter 16 is as air intake.
Dry and cold section is positioned at clammy section of top, is connected between the two by flow distributing system; The dry and cold section of air-recirculated water heat exchange mode for heat exchangers such as use finned tubes, clammy section is heat convection and vapor cooling system.Distance between dry and cold section and clammy section, cooling water flow can be chosen according to actual conditions such as local meteorological conditions.
The dry wet application of associating cooling tower in cooling as above.
The air cooled fin tube bundle of dry and cold section, pipe internal flow is water, and managing fluid between outer fin is air, and under the swabbing action that free convection produces in cooling tower, air flows through air cooled fin tube bundle from bottom to top, is passed by water side heat and takes away; Dry and cold section of shutter 3 of cooling triangle 2 periphery is for controlling air side air intake.
In reverse-flow clammy section, water effluent moves as from top to down successively through water distribution system 5, packing area 6 and rain belt 7, wherein, water distribution system 5 by cool water shower to packing area 6, cooling water completes the heat and mass with air in packing area 6 and rain belt 7, finally arrives collecting-tank 8 and mixes; Air side flow is for entering in tower from tower is outer by supporting construction 15, after clammy section of shutter 16, rising of being heated in rain belt 7, successively by rain belt 7, packing area 6, water distribution system 5 and dehydrater 4, arrive 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, water effluent moves as from top to down successively through water distribution system 5 and packing area 6, and water distribution system 5 is by cool water shower to packing area 6, and cooling water completes the heat and mass with air in packing area 6, finally arrives collecting-tank 8 and mixes; Air side flow is for entering packing area 6 from tower is outer by clammy section of shutter 16, carry out contacting heat convection with recirculated water or recirculated cooling water, enter in tower by dehydrater 4 and supporting construction 15 subsequently, rise to dry and cold fragment position, and flow through this and be in the dry and cold section of hot-air absorbing heat and mix.
The aqueous water carried secretly in Hot wet air heating is collected in the effect of dehydrater 4, introduces collecting-tank 8, to reach the object of water saving.
Further, according to thermic load and Meteorological Elements in China, dry and cold section with clammy section of adverse current or flow over clammy section and adopt a pair cooling water of following combined running mode to cool:
A) all cooling water first through dry and cold section, after through the series operation mode of clammy section---now, in flow distributing system, valve A, valve B and valve E are in full-gear, valve C and valve D is in buttoned-up status, and dry and cold section of shutter 3 and clammy section of shutter 16 are in open mode;
B) cooling water is distinguished by a certain percentage independentthrough dry and cold section and clammy section parallel running mode---now, in flow distributing system, valve A, valve C, valve D and valve E are in open mode, and valve B is in buttoned-up status, dry and cold section of shutter 3 and clammy section of shutter 16 are in open mode;
C) whole cooling water is first through dry and cold section, rear portion through clammy section, the mixed flow method of operation of the direct backwater of another part---now, in flow distributing system, valve A and valve E is in full-gear, valve C is in buttoned-up status, valve B and valve D is 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 distinguished by a certain percentage independentthrough dry and cold section and clammy section, the cooling water wherein flowing through dry and cold section flows through the mixed flow method of operation of clammy section again---now, in flow distributing system, valve B and valve E is in full-gear, valve D is in buttoned-up status, valve A and valve C is in certain aperture state, and dry and cold section of shutter 3 and clammy section of shutter 16 are in open mode.
In thermic load during lower or system overhaul, dry and cold section and clammy section also can isolated operation.When dry and cold section or clammy section of isolated operation mode, cooling water and cooling-air are merely through one of dry and cold section and clammy section, and another section is in buttoned-up status.Separately during dry and cold section of operation, in flow distributing system, valve A and valve D is in full-gear, and valve B, valve C and valve E are in buttoned-up status, and dry and cold section of shutter 3 is in open mode; Adopt independent clammy time, in flow distributing system, valve C and valve E is in full-gear, and valve A, valve B and valve D are in buttoned-up status, and clammy section of shutter 16 is in open mode.
Of the present invention is a kind ofly adopt natural ventilation system, cooling tower for reducing circulating water temperature, cooling tower is final cooling medium with surrounding air, integrated use different transfer of heat (dry and cold) and evaporative cooling (clammy) two kinds of types of cooling in tower, in conjunction with Practical Meteorological Requirements condition, adopt the combined running pattern of series, parallel or mixture length, not only can economize on water but also lower outlet water temperature can be provided when summer high temperature, may be used in the fields such as the energy, electric power, chemical industry, iron and steel, pharmacy.Beneficial effect of the present invention is:
(1) use Double curve tower-shape, rely on Effect of Nature Convection, suction force can be formed at tower upper and lower, drive air flowing without the need to blower fan, save a large amount of electric energy;
(2) adopt dry, the clammy section of mode being vertically arranged in same cooling tower up and down, make full use of space in tower;
(3) dry, clammy section of combined layout mode is adopted, make in a tower, there are upper and lower two place's thermals source, enhance free convection and suction force thereof, under the requirement that required suction force is certain, the height of tower and the diameter of tower can be reduced, reduce the floor space of tower, reduce the initial costs such as the capital construction cost of tower;
(4) adopt dry, clammy section of cooperation, make water be sidelong heat and increase, lower outlet water temperature can be provided, reduce power plant steam turbine back pressure, improve generating efficiency;
(5) be arranged in clammy section of top by dry and cold section, dry and cold section of outlet dry air export mix close to saturated humid air with clammy section, and the rear air humidity reduction of mixing, avoids cooling tower outlet to be atomized, reduce cooling tower surrounding environment influence;
(6) dry and cold section is run throughout the year, enables clammy section carry out associating cooling when environment temperature is too high, can reduce water evaporation loss clammy in running in year, and the year saving recirculated cooling water runs rate of water make-up;
(7) adopt flow distributing system to regulate dry, clammy section operational mode, make cooling tower to the strong adaptability of various Meteorological Elements in China, region is suitable for wider;
(8) can dry and cold section or clammy section of isolated operation when safeguarding, avoid cooling tower to stop transport completely causing to produce interrupting, reduce the economic loss of stopping transport.
Accompanying drawing explanation
fig. 1structure and the flow process signal that the present invention adopts reverse-flow clammy section figure.
fig. 2structure and the flow process signal that the present invention adopts clammy section of cross-flow type figure.
fig. 3that the present invention adopts the profile of reverse-flow clammy section to illustrate figure.
fig. 4that the present invention adopts the profile of clammy section of cross-flow type to illustrate figure.
fig. 5it is the signal that cooling triangle and dry and cold section of shutter are arranged figure.
in figurethe concrete meaning of each label is: 1-tower body, and 2-cools triangle, 3-dry and cold section of shutter, 4-dehydrater, 5-water distribution system, 6-packing area, 7-rain belt, 8-collecting-tank, 9-valve A, 10-valve B, 11-valve C, 12-valve D, 13-valve E, 14-circulating pump, 15-supporting construction, 16-clammy section of shutter, 17-general import pipeline, 18-general export pipeline, 19-dry and cold section of inlet pipeline, 20-dry and cold section of outlet conduit, 21-clammy section of inlet pipeline, 22-clammy section of outlet conduit, the connecting pipe of dry and cold section of 23-outlet and clammy section of import.
Detailed description of the invention
Embodiment 1: series operation completely
When Meteorological Elements in China is in high temperature, high humidity, heat transfer boundary condition is poor, make full use of the cooling capacity of dry and cold section and clammy section, can adopt dry and cold section and clammy section of series operation mode, outlet water temperature is met the demands.See fig. 1with fig. 2, in flow distributing system, valve A, valve B and valve E are in full-gear, and valve C and valve D is in buttoned-up status, and dry and cold section of shutter 3 and clammy section of shutter 16 are in open mode.
For cooling the recirculated cooling water of steam turbine condensing first all through cooling triangle finned-tube bundle and the air heat-exchange of dry and cold section, then all arrive the water distribution system 5 of clammy section, reverse-flow clammy in after heat exchange and mass transfer are carried out with air in packing area, below 6 and rain belt 7, arrive collecting-tank 8 subsequently; Collecting-tank 8 is arrived after carrying out heat exchange and mass transfer through packing area, below 6 with air subsequently during cross-flow type is clammy; Finally by circulation blowback 14 to turbine condenser cooling gas turbine exhaust gas.
Embodiment 2: parallel running completely
When Meteorological Elements in China be in temperature higher and have more water resource to utilize time, can adopt dry and cold section with clammy section of parallel running mode, outlet water temperature is met the demands.See fig. 1with fig. 2, in flow distributing system, valve A, valve C, valve D and valve E are in open mode, and valve B is in buttoned-up status, and dry and cold section of shutter 3 and clammy section of shutter 16 are in open mode.
From turbine condenser cooling water out respectively independentground is through dry and cold section and clammy section, and two-part flow proportional can be regulated by the aperture of valve.At dry and cold section, cooling water in cooling triangle finned-tube bundle 2 with air heat-exchange; At clammy section, cooling water enters water distribution system 5, reverse-flowly clammyly middlely to spray downwards through water distribution system, carries out heat exchange and mass transfer, rear arrival collecting-tank 8 in packing area, below 6 and rain belt 7 with air; Spray downwards through water distribution system 5 in cross-flow type, carry out heat exchange and mass transfer, rear arrival collecting-tank 8 in packing area, below 6 with air.The cooling water of finally dry and cold section of outlet 20 mixes with the clammy section of cooling water exporting 22, gets back to turbine condenser cool gas turbine exhaust gas through circulating pump 14.
Embodiment 3: first parallel running after series connection
When environment temperature be in temperature higher but water resource is less time, can adopt whole traffic flow after dry and cold section, partial discharge is through the method for operation of clammy section.See fig. 1with fig. 2, in flow distributing system, valve A and valve E is in full-gear, and valve C is in buttoned-up status, and valve B and valve D is in certain aperture state, and dry and cold section of shutter 3 and clammy section of shutter 16 are in open mode.
Carry out heat exchange through dry and cold section 2 with air from turbine condenser cooling water out whole flow in cooling tower, continue through clammy section carry out heat exchange with air with rear portion flow, then this part flow mixes with the flow not flowing through clammy section and exports afterwards.
Embodiment 4: complete dry and cold operation
When Meteorological Elements in China is in winter low temperature, or when clammy section of needs are safeguarded, dry and cold section of isolated operation mode can be adopted.See fig. 1with fig. 2, in flow distributing system, valve A and valve D has been in open state, and valve 10, valve 11 and valve 13 are in buttoned-up status, and dry and cold section of shutter 3 is in open mode, and clammy section of shutter 16 is in closed condition.In cooling tower, only carry out heat exchange through dry and cold section 2 with air from turbine condenser out cooling water, reach the effect of water saving.Embodiment 5: complete clammy operation
When dry and cold section of needs are safeguarded, clammy section of isolated operation mode can be adopted.See fig. 1with fig. 2, in flow distributing system, valve C and valve E is in full-gear, and valve A, valve B and valve D are in buttoned-up status, and dry and cold section of shutter 3 is in closed condition, and clammy section of shutter 16 is in open mode.In cooling tower, only heat exchange is carried out, to meet the requirement of low outlet water temperature through clammy section with air from turbine condenser cooling water out.

Claims (7)

1.采用自然通风及复合运行模式的干湿联合冷却塔,其特征在于,包括塔体(1),支撑结构(15),干冷段,湿冷段和流量分配系统;塔体(1)采用双曲线的形式,由支撑结构(15)支撑在地面之上;干冷段和湿冷段沿垂直方向集成布置在同一个冷却塔内;干冷段位于湿冷段的上方;1. The dry-wet combined cooling tower adopting natural ventilation and combined operation mode is characterized in that it includes a tower body (1), a support structure (15), a dry cooling section, a wet cooling section and a flow distribution system; the tower body (1) adopts double The form of the curve is supported on the ground by the support structure (15); the dry cooling section and the wet cooling section are integrated and arranged in the same cooling tower along the vertical direction; the dry cooling section is located above the wet cooling section; 所述干冷段包括冷却三角(2)和干冷段百叶窗(3);冷却三角(2)作为换热装置,由两个竖直的空冷翅片管束彼此成30°~120°组成,100~2000个冷却三角(2)单元在塔内或塔外绕塔一周布置,干冷段百叶窗(3)沿圆周方向布置在冷却三角(2)外围,作为空气入口;干冷段设备的安装高度高于传统间接空冷中干冷段设备的高度;The dry-cooling section includes a cooling triangle (2) and a dry-cooling section louver (3); the cooling triangle (2) is used as a heat exchange device, and is composed of two vertical air-cooled finned tube bundles at 30° to 120° with each other, 100 to 2000 The three cooling triangle (2) units are arranged around the tower inside or outside the tower, and the louvers (3) of the dry cooling section are arranged on the periphery of the cooling triangle (2) along the circumferential direction as air inlets; the installation height of the equipment in the dry cooling section is higher than that of the traditional indirect The height of the equipment in the dry cooling section of the air cooling; 所述湿冷段包括除水器(4)、配水系统(5)、填料区(6)、集水池(8)和湿冷段百叶窗(16);配水系统(5)将冷却水喷淋至填料区(6),冷却水在填料区(6)与空气换热后引入集水池(8)内;湿冷段空气通过湿冷段百叶窗(16)后进入填料区(6),吸收热量和水分后的空气汇入冷却塔中,形成向上的抽吸力;The wet-cooling section includes a water eliminator (4), a water distribution system (5), a filling area (6), a sump (8) and wet-cooling section shutters (16); the water distribution system (5) sprays cooling water to the filling area (6), the cooling water is introduced into the sump (8) after exchanging heat with the air in the filling area (6); the air in the damp cooling section enters the filling area (6) after passing through the louvers (16) in the damp cooling section, and the air after absorbing heat and moisture Into the cooling tower to form an upward suction force; 所述流量分配系统包括总进口管道(17)、总出口管道(18)、干冷段进口管道(19)、干冷段出口管道(20)、湿冷段进口管道(21)、湿冷段出口管道(22)、干冷段出口与湿冷段进口的连接管道(23)、阀门A(9)、阀门B(10)、阀门C(11)、阀门D(12)、阀门E(13)和循环泵(14);干冷段进口管道(19)上安装阀门A(9),干冷段出口管道(20)上安装阀门D(12),干冷段出口与湿冷段进口的连接管道(23)上安装阀门B(10),湿冷段进口管道(21)上安装阀门C(11),湿冷段出口管道(22)上安装阀门E(13),总出口管道(18)上安装循环泵(14)。The flow distribution system includes a total inlet pipeline (17), a total outlet pipeline (18), a dry cooling section inlet pipeline (19), a dry cooling section outlet pipeline (20), a wet cooling section inlet pipeline (21), a wet cooling section outlet pipeline (22 ), the connecting pipe (23) between the outlet of the dry cooling section and the inlet of the wet cooling section, valve A (9), valve B (10), valve C (11), valve D (12), valve E (13) and circulation pump (14 ); valve A (9) is installed on the dry-cooling section inlet pipeline (19), valve D (12) is installed on the dry-cooling section outlet pipeline (20), and valve B ( 10), valve C (11) is installed on the inlet pipeline (21) of the wet cooling section, valve E (13) is installed on the outlet pipeline (22) of the wet cooling section, and a circulating pump (14) is installed on the total outlet pipeline (18). 2.根据权利要求1所述的干湿联合冷却塔,其特征在于,所述湿冷段包括逆流式和横流式两种布置方式。2. The dry-wet combined cooling tower according to claim 1, characterized in that, the wet cooling section includes two arrangements of counter-flow type and cross-flow type. 3.根据权利要求2所述的干湿联合冷却塔,其特征在于,当采用逆流式湿冷段时,湿冷段的组成中还包括雨区(7);逆流式湿冷段的结构位置从上往下依次为除水器(4)、配水系统(5)、填料区(6)、雨区(7)、湿冷段百叶窗(16)和集水池(8);除水器(4)、配水系统(5)中的喷淋装置和填料区(6)中的填料在塔内水平布置;所述填料为均匀或非均匀布置;支撑结构(15)作为空气入口。3. The dry-wet combined cooling tower according to claim 2, characterized in that, when the counterflow type wet cooling section is adopted, the composition of the wet cooling section also includes a rain zone (7); the structural position of the counterflow type wet cooling section is from top to bottom Bottoms are water eliminator (4), water distribution system (5), filling area (6), rain area (7), wet-cooling section louvers (16) and sump (8); water eliminator (4), water distribution system The spray device in (5) and the packing in the packing area (6) are arranged horizontally in the tower; the packing is arranged uniformly or non-uniformly; the supporting structure (15) is used as an air inlet. 4.根据权利要求2所述的干湿联合冷却塔,其特征在于,当采用横流式湿冷段时,集水池(8)位于塔内最下方,除水器(4)在塔边缘竖直布置,配水系统(5)中的配水池和填料区(6)中的填料在塔边缘或塔外水平布置;所述填料为均匀或非均匀布置;湿冷段百叶窗(16)作为空气入口。4. The dry-wet combined cooling tower according to claim 2, characterized in that, when the cross-flow wet cooling section is adopted, the sump (8) is located at the bottom of the tower, and the water eliminator (4) is vertically arranged at the edge of the tower , the water distribution tank in the water distribution system (5) and the packing in the packing area (6) are arranged horizontally on the edge of the tower or outside the tower; the packing is arranged uniformly or non-uniformly; the louvers (16) in the wet cooling section are used as air inlets. 5.根据权利要求1-4任一项所述的干湿联合冷却塔在冷却方面的应用。5. The application of the dry-wet combined cooling tower according to any one of claims 1-4 in cooling. 6.根据权利要求5所述的应用,其特征在于,干冷段的空冷翅片管束,管内部流体为水,管外翅片间流体为空气,在冷却塔内自然对流产生的抽吸作用下,空气自下而上流过空冷翅片管束,将水侧热量传带走;冷却三角(2)外围的干冷段百叶窗(3)用于控制空气侧进风;6. The application according to claim 5, characterized in that, for the air-cooled finned tube bundle in the dry cooling section, the fluid inside the tube is water, and the fluid between the fins outside the tube is air, under the suction effect of natural convection in the cooling tower , the air flows through the air-cooled finned tube bundle from bottom to top to transfer heat away from the water side; the louvers (3) in the dry cooling section around the cooling triangle (2) are used to control the air intake from the air side; 逆流式湿冷段中,水侧流动为自上往下依次经过配水系统(5)、填料区(6)和雨区(7),其中,配水系统(5)将冷却水喷淋至填料区(6),冷却水在填料区(6)和雨区(7)完成与空气的传热传质,最后到达集水池(8)混合;空气侧流动为从塔外由支撑结构(15)处进入塔内,通过湿冷段百叶窗(16)后,在雨区(7)受热上升,依次通过雨区(7)、填料区(6)、配水系统(5)和除水器(4),到达干冷段位置,与流经此处在干冷段吸收热量后的热空气混合;In the countercurrent wet-cooling section, the water side flows through the water distribution system (5), the filling area (6) and the rain area (7) from top to bottom in sequence, wherein the water distribution system (5) sprays the cooling water to the filling area ( 6), the cooling water completes the heat and mass transfer with the air in the filling area (6) and the rain area (7), and finally reaches the sump (8) to mix; the air side flows from the outside of the tower through the support structure (15) In the tower, after passing through the louvers (16) in the wet cooling section, it rises in the rain area (7) after being heated, and passes through the rain area (7), the filling area (6), the water distribution system (5) and the water eliminator (4) in sequence, and reaches the dry cooling area. Section position, mixed with the hot air flowing through here after absorbing heat in the dry cooling section; 横流式湿冷段中,水侧流动为自上往下依次经过配水系统(5)和填料区(6),配水系统(5)将冷却水喷淋至填料区(6),冷却水在填料区(6)完成与空气的传热传质,最后到达集水池(8)混合;空气侧流动为从塔外由湿冷段百叶窗(16)处进入填料区(6),与循环水或循环冷却水进行接触对流换热,随后通过除水器(4)和支撑结构(15)进入塔内,上升至干冷段位置,与流经此处在干冷段吸收热量的热空气混合。In the cross-flow wet-cooling section, the water side flows through the water distribution system (5) and the packing area (6) from top to bottom in sequence, the water distribution system (5) sprays the cooling water to the packing area (6), and the cooling water in the packing area (6) Complete the heat and mass transfer with the air, and finally reach the sump (8) to mix; the air side flows from the outside of the tower through the wet-cooling section louvers (16) into the packing area (6), and circulated water or circulating cooling water Conduct contact convection heat exchange, then enter the tower through the water eliminator (4) and support structure (15), rise to the position of the dry cooling section, and mix with the hot air flowing through here to absorb heat in the dry cooling section. 7.根据权利要求5所述的应用,其特征在于,干冷段与逆流湿冷段或横流湿冷段采用以下的复合运行方式之一对冷却水进行冷却:7. The application according to claim 5, characterized in that the dry cooling section and the counter-current wet cooling section or the cross-flow wet cooling section adopt one of the following combined operation modes to cool the cooling water: a)全部冷却水先经过干冷段、后经过湿冷段的串联运行方式——此时,流量分配系统中阀门A(9)、阀门B(10)和阀门E(13)处于全开状态,阀门C(11)和阀门D(12)处于完全关闭状态,干冷段百叶窗(3)和湿冷段百叶窗(16)处于打开状态;a) All cooling water first passes through the dry cooling section and then through the wet cooling section in series operation mode - at this time, valve A (9), valve B (10) and valve E (13) in the flow distribution system are fully open, and valve C (11) and valve D (12) are in a fully closed state, and the dry-cooling section louvers (3) and wet-cooling section louvers (16) are in an open state; b)冷却水按一定比例分别独立经过干冷段和湿冷段的并联运行方式——此时,流量分配系统中阀门A(9)、阀门C(11)、阀门D(12)和阀门E(13)处于打开状态,阀门B(10)处于完全关闭状态,干冷段百叶窗(3)和湿冷段百叶窗(16)处于打开状态;b) Parallel operation mode in which the cooling water passes through the dry cooling section and the wet cooling section independently in a certain proportion - at this time, valve A (9), valve C (11), valve D (12) and valve E (13) in the flow distribution system ) is in an open state, valve B (10) is in a fully closed state, and the dry-cooling section louvers (3) and wet-cooling section louvers (16) are in an open state; c)全部冷却水先经过干冷段,之后一部分经过湿冷段,另一部分直接回水的混合流动运行方式——此时,流量分配系统中阀门A(9)和阀门E(13)处于全开状态,阀门C(11)处于完全关闭状态,阀门B(10)和阀门D(12)处于一定开度状态,干冷段百叶窗(3)和湿冷段百叶窗(16)处于打开状态;c) All the cooling water first passes through the dry cooling section, then part of it passes through the wet cooling section, and the other part directly returns to the mixed flow operation mode - at this time, valve A (9) and valve E (13) in the flow distribution system are fully open, Valve C (11) is in a fully closed state, valve B (10) and valve D (12) are in a certain opening state, and the louvers (3) in the dry-cooling section and the louvers (16) in the wet-cooling section are in an open state; d)冷却水先按一定比例分别独立经过干冷段和湿冷段,其中流经干冷段的冷却水再流经湿冷段的混合流动运行方式——此时,流量分配系统中阀门B(10)和阀门E(13)处于全开状态,阀门D(12)处于完全关闭状态,阀门A(9)和阀门C(11)处于一定开度状态,干冷段百叶窗(3)和湿冷段百叶窗(16)处于打开状态。d) The cooling water first passes through the dry cooling section and the wet cooling section independently in a certain proportion, and the cooling water flowing through the dry cooling section then flows through the wet cooling section. E (13) is fully open, valve D (12) is fully closed, valve A (9) and valve C (11) are in a certain opening state, and the louvers (3) in the dry-cooling section and the louvers (16) in the wet-cooling section are in the open state.
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CN114364223B (en) * 2021-12-30 2024-10-11 深圳市英维克科技股份有限公司 Cooling control method, cooling control device, computer equipment and storage medium
CN117433335A (en) * 2023-12-21 2024-01-23 福建省江南冷却科技有限公司 Disturbance wave flow cooling heat exchange equipment
CN117433335B (en) * 2023-12-21 2024-03-05 福建省江南冷却科技有限公司 Disturbance wave flow cooling heat exchange equipment

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