CN108120315B - Circulating water cooling system and method - Google Patents
Circulating water cooling system and method Download PDFInfo
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- CN108120315B CN108120315B CN201611065772.9A CN201611065772A CN108120315B CN 108120315 B CN108120315 B CN 108120315B CN 201611065772 A CN201611065772 A CN 201611065772A CN 108120315 B CN108120315 B CN 108120315B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 238000001816 cooling Methods 0.000 title claims abstract description 122
- 238000000034 method Methods 0.000 title description 11
- 239000007921 spray Substances 0.000 claims abstract description 31
- 238000009834 vaporization Methods 0.000 claims abstract description 26
- 230000008016 vaporization Effects 0.000 claims abstract description 26
- 238000013461 design Methods 0.000 claims description 18
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Circulating water cooling system and mode, the system comprises enclosed tower cooler system, flow guide system and heat pump systems；Enclosed tower cooler system includes blower, spray thrower, heat exchange coil, heat exchange layers and catch basin, flow guide system includes baffle inclined plate, deflector, control door and vaporization chamber, heat pump system includes with the sequentially connected evaporator of pipeline, compressor, condenser and expansion valve, and expansion valve connect forming circuit with evaporator；The evaporator is placed in vaporization chamber；A variety of types of cooling can be realized for the variation of environment temperature and water-saving or economize on electricity demand difference using this system, traditional enclosed tower cooler system and heat pump system are coupled by the present invention, and under the auxiliary of flow guide system, improve the water-saving result and energy-saving effect of whole system, and existing enclosed tower size is largely reduced, reduce occupied area.
Description
Technical field
The present invention relates to a kind of circulating water cooling systems of pump coupled heat, belong to industrial circulating water technical field.
Background technique
The existing circulation overwhelming majority of large enterprise uses traditional open cooling tower, and on the one hand its fresh water disappears
Consumption is big, and the water of consumption accounts for the 2/3 of industrial water consumption, even more；Another aspect open cooling tower cooling water and atmosphere are straight
Contact, a large amount of impurity enter system, cause corrosive pipeline and fouling, is forced to add a large amount of chemical agents, heat exchange efficiency is low
Under problem be on the rise.Recently, many enterprises begin trying that pipe heat exchanger is placed in tower using closed cooling tower,
It is exchanged by the air of circulation, shower water with circulating water heating to guarantee cooling effect.Due to being closed cycle, it can guarantee water
Matter is not contaminated, protects the efficient operation of main equipment, improves service life, while significant effect of saving water and energy.
However, equipment size and the excessive closed cooling tower that restricts of occupied area are in the further development in recirculated water field.
This is because closed cooling tower is to change when design referring to local annual highest wet-bulb temperature, and maximum heat transfer temperature difference
Work enterprise is generally 40 DEG C -30 DEG C, and in most of the time, such as morning, evening in spring, autumn, winter or one day
On, temperature be it is relatively low, be far below design standard, at this time closed cooling tower does not need full load operation, it may also be said to
Heat exchange area have quite a few be it is more than needed, this has resulted in the waste of equipment size and occupied area.With open cooling tower
It compares, closed cooling tower is limited by the steel frame construction and manufacturing process of itself, can not do like that everywhere to hyperbola open type tower
In reason amount incomparably per hour, the result to break the whole up into parts is exactly that the overall occupied area of closed cooling tower is excessive.
CN201010005518.6 discloses a kind of highly-efficient air energy water source heat pump integrated unit, including compressor,
One heat exchanger, the second heat exchanger, heat exchange columns, water pump, expansion valve, reversal valve, its working principle is that heat of the summer heat pump system
End is placed on heat exchange columns, cold end is conveyed to air-conditioning system, cold end is conveyed to heat exchange columns by winter, and hot end is supplied to air-conditioning system
System, heat pump system are equivalent to the bridge of both heat exchange columns and air-conditioning system, and starting point preferably operates for air-conditioning system, rather than
Heat exchange columns are improved, when summer, heat exchange columns needed most cooling capacity, what heat pump system was supplied to heat exchange columns is hot end, in winter
When heat exchange columns do not need cooling capacity, heat pump system provides cold end, and the heat exchange columns only have shower water, follows without external
Ring water.
CN201010185871.7 discloses a kind of multifunctional cold and heat combined supply heat pump system and heat exchange columns and heat pump system
Coupling, heat pump system improves operational efficiency by the way of series-parallel.But it is the same with CN201010005518.6,
It is air-conditioning system service just with the hot end of heat pump system and cold end, and starting point does not all lie in the improvement of heat exchange tower,
Also without external circulating water line, circulation can not be applied to.
CN201310699608.3 discloses a kind of heat pump heat supply demisting water-saving cooling tower, really utilizes heat pump techniques
Cooling tower is improved, in terms of being mainly reflected in demisting, i.e., the heat source generated using heat pump is used to heat blower fan of cooling tower
The humid air of outlet, reduces the relative humidity of Output air of water cooling tower, and then reaches defogging effect.But its shortcoming also compares
Obviously, on the one hand its heat pump system and cooling tower are still independent two equipment, are not coupled in a device, and the two is logical
Piping and heat exchanger are connected, and using multistage heat exchange, structure is more complex, and heat loss is serious；On the other hand, heat pump is necessary
Work round-the-clock can just have both refrigeration and defogging effect, and compare traditional cooling tower, and energy consumption is very high.
CN201510419893.8 discloses a kind of water type closed cycle water air cooling system and method, proposes cooling
Tower level-one is cooling, the cooling thinking of heat pump second level, but its heat pump system and cooling tower are still independent two equipment, and its
By heat pump needing the heat of cooling recirculated water to be transferred to another strand of cooling water again, be then again fed to cooling tower into
Row cools, and has come back in cooling tower equal to heat to be treated further through another mode, this is clearly not
Reasonably.
CN201610341832.9 discloses a kind of three dimension high efficiency evaporation and heat-exchange system, it is also realised that cooling tower
The problem of volume is larger, and the most of the time operates at part load, therefore propose and utilize vapor-compression type refrigeration system (heat
Pumping system) strengthen the thinking of refrigeration, evaporator is placed in sink, condenser is placed in axial flow blower exit and also compensates for
The deficiency of CN201510419893.8 patent.But the patent overemphasizes vapor-compression type refrigeration system, by increasing or reducing
Compression-type refrigeration ability enables the device to adapt to various weather conditions, and energy consumption is very high, to equipment volume reduction
Also be limited, and the patent abandoned closed cooling tower biggest advantage i.e. heat exchange coil, shower water, wind three-phase heat transfer with
And sensible heat and vaporation-type latent heat synergistic effect, but become water and heat transfer water, coil pipe and hearsay heat, and when temperature is higher
What is really worked is that the evaporation latent heat of coil surface water takes away most of heat.
Summary of the invention
It is to be changed to design according to ambient wet bulb temperature to solve existing circulating water cooling system, there are change when major part
Heat area is more than needed, causes equipment size excessive, and the present invention is quasi- to be provided and a kind of integrate following for closed cooling tower and heat pump system
Ring water cooling system, can be according to best wet-bulb temperature rather than annual highest wet-bulb temperature designs cooling tower, and utilizes heat pump system
System supplies cooling requirement, can substantially reduce cooling tower equipment size and occupied area, at the same water-saving result is prominent and energy consumption compared with
It is low.
Technical purpose of the invention is achieved through the following technical solutions:
Firstly, the technical purpose of first aspect present invention is to provide a kind of circulating water cooling system, including enclosed tower cooler
System, flow guide system and heat pump system；
The enclosed tower cooler system includes the blower from top to bottom set gradually, spray thrower, heat exchange coil, heat exchange layers
And catch basin, the heat exchange coil both ends are separately connected recirculated water inflow and outflow, the catch basin is connected by water circulating pump
Spray thrower；
The flow guide system includes baffle inclined plate, deflector, control door and vaporization chamber, and the baffle inclined plate, which is set to, to catchment
Groove top portion is extended obliquely downward from the side of catch basin to the other side of catch basin, and the deflector is provided with muti-piece, from baffle
The end of inclined plate is arranged successively into catch basin, and in the horizontal direction, water conservancy diversion board ends connect the cell wall that catchments, in vertical direction
On, it one end or connect, or connect with the trench bottom that catchments, the other end and catchments between trench bottom or baffle inclined plate with baffle inclined plate
There are diversion space, the deflector of two kinds of connection types is alternately arranged；The innermost deflector one end of catch basin connects catch basin
Bottom is equipped with control door on the other end, and when the control door is closed, deflector, baffle inclined plate sum aggregate flume wall form one
Closed warehouse is vaporization chamber；
The heat pump system include with the sequentially connected evaporator of pipeline, compressor, condenser and expansion valve, expansion valve with
Evaporator connection forming circuit；The evaporator is placed in vaporization chamber；
Valve A is arranged in the recirculated water water outlet of the heat exchange coil, in the nearly water inlet extreme direction of valve A, draws tributary, leads to
It crosses valve B to be connected to the vaporization chamber of catch basin, the bottom end of the catch basin is connected by valve C and recirculated water water outlet.
The technical purpose of second aspect of the present invention, which is to provide, carries out cooling method using the circulating water cooling system, packet
Include following manner:
I, opens enclosed tower cooler system when the best wet-bulb temperature of ambient wet bulb temperature≤enclosed Deethanizer design, closes
Heat pump system, valve A are opened, and valve B and valve C are closed, and control door is opened, and the power only by adusting blower and spray thrower is
Recirculated water can be met and go out water cooling temperature requirement；
II, is when the best wet-bulb temperature of ambient wet bulb temperature≤enclosed Deethanizer design, by the spray of enclosed tower cooler system
Device is closed, and blower is opened, and valve A is opened, and valve B and valve C are closed, and control door is closed, and is met only by adusting blower frequency
Cooling requirement closes valve A when blower, which is adjusted to maximum, is unable to meet demand, and valve B and valve C are opened, and control door closes
It closes, while opening heat pump system auxiliary temperature-reducing, cooling system enters dry-running；
III, is when the best wet-bulb temperature of ambient wet bulb temperature > enclosed Deethanizer design, by the blower of enclosed tower cooler system
It opens with spray thrower to maximum and is still unable to meet demand, open heat pump system, valve A is opened, and valve B and valve C are closed, and controls door
It opens, heat pump system is to shower water auxiliary temperature-reducing.
Compared with prior art, advantages of the present invention:
1, equipment size is small, and occupied area is few, and the present invention has abandoned traditional closed cooling tower according to annual highest wet bulb temperature
The theory of design is spent, but by the way of being designed according to best wet-bulb temperature, cooling capacity deficiency is then turned on heat pump system,
Therefore the size of equipment and occupied area are all greatly reduced.
2, water-saving result is more obvious；Heat pump system refrigeration modes do not have the consumption of water, therefore heat pump adds the two of cooling tower
Grade cooling water consume more cooling than independent cooling tower is low, relatively early to open heat pump system when in addition temperature is lower, can also make cooling tower
Dry-running is realized as early as possible, and water consume further decreases.
3, low energy consumption, and compare other heat pumps and cooling tower combination technique, and heat pump system of the invention is small without 24
Shi Kaiqi is only opened when needing additional cooling capacity, thus energy consumption is lower.
4, heat pump system and cooling tower are highly coupled, and the evaporator of heat pump system is placed directly in cooling tower catch basin, cold
Condenser is placed in fan outlet top, and without additional heat exchanger, in addition the reduction of size and occupied area, equipment investment is saved
Obviously.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
1 width of attached drawing of the present invention:
Circulating water cooling system schematic diagram Fig. 1 of the invention,
Wherein, 100. enclosed tower cooler system, 200. heat pump systems, 300. flow guide systems, 110. blowers, 120. sprays
Device, 130. heat exchange coils, 140. heat exchange layers, 150. catch basins, 160. water circulating pumps, 210. evaporators, 220. compressors,
230. condensers, 240. expansion valves, 310. baffle inclined plates, 320. deflectors, 330. control doors, 340. vaporization chambers, 401. valves
A, 402. valve B, 403. valve C.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Firstly, the technical purpose of first aspect present invention is to provide a kind of circulating water cooling system, including enclosed tower cooler
System, flow guide system and heat pump system；
The enclosed tower cooler system includes the blower from top to bottom set gradually, spray thrower, heat exchange coil, heat exchange layers
And catch basin, the heat exchange coil both ends are separately connected recirculated water inflow and outflow, the catch basin is connected by water circulating pump
Spray thrower；
The flow guide system includes baffle inclined plate, deflector, control door and vaporization chamber, and the baffle inclined plate, which is set to, to catchment
Groove top portion is extended obliquely downward from the side of catch basin to the other side of catch basin and there are water flow space, and the deflector is set
It is equipped with muti-piece, is arranged successively from the end of baffle inclined plate into catch basin, in the horizontal direction, water conservancy diversion board ends connect catch basin
Wall one end or is connect in vertical direction with baffle inclined plate, or is connect with the trench bottom that catchments, the other end and catch basin bottom
There are diversion space between portion or baffle inclined plate, the deflector of two kinds of connection types is alternately arranged；The innermost deflector of catch basin
One end connects the trench bottom that catchments, and control door is equipped on the other end, when the control door is closed, deflector, baffle inclined plate sum aggregate
Flume wall forms a closed warehouse, is vaporization chamber；
The heat pump system include with the sequentially connected evaporator of pipeline, compressor, condenser and expansion valve, expansion valve with
Evaporator connection forming circuit；The evaporator is placed in vaporization chamber；
Valve A is arranged in the recirculated water water outlet of the heat exchange coil, in the nearly water inlet extreme direction of valve A, draws tributary, leads to
It crosses valve B to be connected to the vaporization chamber of catch basin, the bottom end of the catch basin is connected by valve C and recirculated water water outlet.
In above-mentioned circulating water cooling system, the blower is axial flow blower, and is variable-frequency motor；The heat exchange coil
Using enhanced tube, including but not limited to bellows, screwed pipe, twisted tube etc., it is compared to common light pipe, it can be further
Reduce cooling tower size and occupied area；As one of more specific embodiment, the heat exchange coil water inlet is under, out
The mouth of a river is upper, and such recirculated water and shower water are using can push heat transfer, reduction circulating water outlet temperature by the way of adverse current plus crossing current.
In above-mentioned circulating water cooling system, it will be apparent to a skilled person that shower water of the invention is to following
After supercooling, temperature increases ring water, first passes through heat exchange layers cooling, then concentrate on and collect by the baffle inclined plate in flow guide system
The side of sink, and under the action of deflector, it is slowly flowed to the vaporization chamber of the other side according to stationary flowpath, is opening heat pump
When system, the low temperature shower water that has cooled down in the shower water and vaporization chamber of the higher temperature that can prevent catch basin side from just having flow down
Mixing realizes that segmentation cools down in batches, improves the refrigeration effect of shower water.The heat exchange layers realize the first step drop of shower water
Temperature can be used internal filling heat exchange filler mode or be realized using other any modes well-known to those skilled in the art
The cooling of shower water, this mode is known to those skilled in the art, repeats no more.
In above-mentioned circulating water cooling system, the condenser is set to blower top, using the outlet air of blower to condensation
Device is cooled down, and additional blower and heat dissipation equipment are not needed, and is had both demisting and reduced the elegant effect of shower water, is improved
Utilization rate of equipment and installations reduces investment.
In above-mentioned circulating water cooling system, flow media is refrigerant, concrete operating principle in the heat pump system are as follows:
Pressurization becomes the refrigerant gas of high temperature and pressure, high-temperature high-pressure refrigerant after the refrigerant gas of low-temp low-pressure is sucked by compressor
Gas becomes medium temperature highly pressurised liquid, heat is scattered to the wind among these after the condenser heat exchange above axial flow fan in cooling tower
In atmosphere, the liquid of medium temperature high pressure becomes the liquid of low-temp low-pressure after being depressured using expansion valve, by the steaming in catch basin
Become the gas of low-temp low-pressure after hair device heat absorption evaporation, low temperature low pressure gas is sucked by compressor again, so recycled, wherein catchmenting
Amount of heat has been taken away in evaporator refrigerant gasification heat absorption on the left of slot, so that nearby shower water cools, then defeated by water pump
It is sent to the spray thrower on cooling tower top, enhances refrigerating capacity significantly.
The technical purpose of second aspect of the present invention, which is to provide, carries out cooling method using the circulating water cooling system, packet
Include following manner:
I, opens enclosed tower cooler system when the best wet-bulb temperature of ambient wet bulb temperature≤enclosed Deethanizer design, closes
Heat pump system, valve A are opened, and valve B and valve C are closed, and control door is opened, and the power only by adusting blower and spray thrower is
Recirculated water can be met and go out water cooling temperature requirement；
II, is when the best wet-bulb temperature of ambient wet bulb temperature≤enclosed Deethanizer design, by the spray of enclosed tower cooler system
Device is closed, and blower is opened, and valve A is opened, and valve B and valve C are closed, and control door is closed, and is met only by adusting blower frequency
Cooling requirement closes valve A when blower, which is adjusted to maximum, is unable to meet demand, and valve B and valve C are opened, and control door closes
It closes, while opening heat pump system auxiliary temperature-reducing, cooling system enters dry-running；
III, is when the best wet-bulb temperature of ambient wet bulb temperature > enclosed Deethanizer design, by the blower of enclosed tower cooler system
It opens with spray thrower to maximum and is still unable to meet demand, open heat pump system, valve A is opened, and valve B and valve C are closed, and controls door
It opens, heat pump system is to shower water auxiliary temperature-reducing.
It will be apparent to a skilled person that the best wet-bulb temperature is the upper limit in enclosed tower best performance section
Value, can all steeply rise, required heat exchange area is also increased considerably more than the wet-bulb temperature cooling tower water consume and energy consumption.
It is carried out in cooling method above-mentioned using circulating water cooling system of the invention, as more specific embodiment party
Formula, when the type of cooling I is closer to more suitable for the best wet-bulb temperature of ambient wet bulb temperature and enclosed Deethanizer design, specifically
Both be the temperature difference≤12 DEG C when.Best wet-bulb temperature of the type of cooling II more suitable for ambient wet bulb temperature and enclosed Deethanizer design
When difference is larger, both more specifically 12 DEG C of > of the temperature difference when.
It is carried out in cooling method above-mentioned using circulating water cooling system of the invention, the type of cooling I is more specifically
The method of operation is: according to cooling requirement, monitoring recirculated water leaving water temperature at any time, and adjusts the revolving speed and spray thrower unit of blower
Quantity is opened, recirculated water is discharged from valve A, and shower water completes cooling cool down by heat exchange layers and enters catch basin, by recirculated water
Pumping to spray thrower is recycled.
It is carried out in cooling method above-mentioned using circulating water cooling system of the invention, the type of cooling II is more specifically
The method of operation is: spray thrower being closed, blower is only opened, system enters dry-running, and valve A is opened, and valve B and valve C are closed
It closes, control door is closed, and recirculated water leaving water temperature is monitored, and when not being able to satisfy cooling requirement still when blower is adjusted to maximum, opens heat
Pumping system simultaneously closes off valve A, starts valve B and C, closes control door, and recirculated water is made to enter vaporization chamber, heat pump system auxiliary
It is discharged again after cooling down.
It is carried out in cooling method above-mentioned using circulating water cooling system of the invention, the type of cooling III is more specifically
The method of operation is: enclosed tower cooler system and heat pump system are opened, and valve A is opened, and valve B and valve C are closed, and control door is opened
It opens, environment temperature is higher at this time, and the effect that shower water only passes through heat exchange layers can not reach the demand as cooling water, at this time
After shower water enters catch basin, vaporization chamber is flowed under deflector effect, and cool down under heat pump system effect, by water circulating pump
It is evacuated to spray thrower recycling, deflector can will cool down in the shower water and vaporization chamber of the new higher temperature for flowing into catch basin
Shower water is completely cut off to a certain extent, prevents from being blended, and improves the working efficiency of heat pump system.
It is carried out in cooling method above-mentioned using circulating water cooling system of the invention, each equipment is all made of intelligence system
Control can select the method for operation of this cooling system, and pass through ring according to each different demands using the water-saving of unit or economize on electricity
The feedback intelligent of border temperature and circulating water outlet temperature adjusts the power of each equipment and the start and stop of heat pump unit, to meet recirculated water
Water outlet requires.
Following non-limiting embodiments can with a person of ordinary skill in the art will more fully understand the present invention, but not with
Any mode limits the present invention.
Embodiment 1
Circulating water cooling system of the invention, schematic diagram is as shown in Figure 1, include enclosed tower cooler system 100, water conservancy diversion system
System 300 and heat pump system 200；
The enclosed tower cooler system 100 includes blower 110, the spray thrower 120, heat exchange coil from top to bottom set gradually
130, heat exchange layers 140 and catch basin 150,130 both ends of heat exchange coil are separately connected recirculated water inflow and outflow, the collection
Sink 150 connects spray thrower by water circulating pump 160；
The flow guide system 300 includes baffle inclined plate 310, deflector 320, control door 330 and vaporization chamber 340, the gear
Stream inclined plate 310 is set to the top of catch basin 150, extends obliquely downward from the side of catch basin 150 another to catch basin 150
Side, the deflector 320 are provided with muti-piece, are arranged successively from the end of baffle inclined plate 310 into catch basin 150, in level side
Upwards, 320 both ends of deflector connect 150 wall of catch basin, in vertical direction, one end or connect with baffle inclined plate 310, or with
The connection of 150 bottom of catch basin, there are diversion space, two kinds of connections between the other end and 150 bottom of catch basin or baffle inclined plate 310
The deflector 320 of mode is alternately arranged；Innermost 320 one end of deflector of catch basin 150 connects 150 bottom of catch basin, another
Control door 330, when the control door 330 is closed, 150 wall shape of deflector 320, baffle inclined plate 310 and catch basin are installed on end
It is vaporization chamber 340 at a closed warehouse；The heat pump system 200 includes with the sequentially connected evaporator 210 of pipeline, compression
Machine 220, condenser 230 and expansion valve 240, expansion valve 240 connect forming circuit with evaporator 210；The evaporator 210 is placed in
In vaporization chamber 340；
The recirculated water water outlet setting valve A401 of the heat exchange coil 130 draws in the nearly water inlet extreme direction of valve A401
Tributary out is connected to by valve B402 with the vaporization chamber 340 in catch basin 150, and the bottom end of the catch basin 150 passes through valve
C403 and recirculated water water outlet connect.
The blower 110 be axial flow blower, and be variable-frequency motor, the heat exchange coil 130 be bellows, recirculated water into
The mouth of a river is under, and water outlet is upper；The condenser 230 is set to the top of blower 110.Flowing in the heat pump system 200
Medium is refrigerant.Each equipment in system above is all made of intelligence system control, can according to it is each using the water-saving of unit or section
The different demands of electricity select the method for operation of this cooling system, and pass through the feedback intelligence of environment temperature and circulating water outlet temperature
The power of each equipment and the start and stop of heat pump unit are adjustable, are required with meeting recirculated water water outlet.
This circulating water cooling system is designed according to 22 DEG C of the best wet-bulb temperature in somewhere, and Inlet Temperature of Circulating Water is 40 DEG C
Left and right, circulating water outlet temperature target value are 30 DEG C.This cooling tower size reduces about 1/2 than existing cooling tower size, land occupation
Area reduces 1/3.
Embodiment 2 ~ 5 by above-mentioned circulating water cooling system carry out it is cooling in the way of:
Embodiment 2
Some day this area's September is chosen, maximum temperature is 29 DEG C in one day, and relative humidity 45% converses highest
Wet-bulb temperature is 20.26 DEG C, and minimum temperature is 18 DEG C, relative humidity 55%, and conversing minimum wet-bulb temperature is 12.8 DEG C.
The cooling system darg mode are as follows: open enclosed tower cooler system 100, close heat pump system 200, valve
A401 is opened, and valve B402 and valve C403 are closed, and control door 330 is opened；Be the coldest stage in one day in the morning, is at this moment sprayed
120 water pump assembly quantity of device opens half, and blower 110 works under lower revolving speed, gradually mentions as the temperature rises
High power meets the index that circulating water outlet temperature is 30 DEG C；The stage in noon to afternoon is one day most hot, at this moment spray thrower
120 water pump assembly standard-sized sheets, blower 110 work under higher rotation speed；Dusk to stage in the late into the night, temperature are gradually decreased again, are gradually adjusted
It saves 110 revolving speed of blower and 120 water pump of spray thrower opens quantity.The cooling system whole day be all under the mode intelligently adjusted into
Row changes the power and spray thrower 120 of blower 110 by the feedback of environment temperature and circulating water outlet temperature come intelligent frequency-conversion
The start-stop quantity of water pump.
Embodiment 3
Some day this area's July is chosen, maximum temperature is 33 DEG C in one day, and relative humidity 60% converses highest
Wet-bulb temperature is 26.43 DEG C, and minimum temperature is 23 DEG C, relative humidity 65%, and conversing minimum wet-bulb temperature is 18.46 DEG C.
The cooling system darg mode are as follows: be one day temperature lower stage in the morning, only opens enclosed tower at this time
Cooling system 100, valve A are opened, and valve B and C are closed, and control door is opened；120 water pump standard-sized sheet of spray thrower, blower 110 is higher
It works under revolving speed, power is gradually increased as the temperature rises；Close on noon or noon sometime, ambient wet bulb temperature is super
22 DEG C are crossed, at this moment 120 water pump standard-sized sheet of spray thrower, blower 110 open to the maximum, and still monitor that circulating water outlet temperature does not reach 30
DEG C, at this moment open heat pump system 200, auxiliary shower water cooling；Dusk to stage in the late into the night, temperature gradually decrease again, ambient wet bulb
When temperature is lower than 22 DEG C, heat pump system 200 is closed, adjusts 110 revolving speed of blower gradually to meet the requirements.
Embodiment 4
Some day this area's November is chosen, maximum temperature is 10 DEG C in one day, and relative humidity 50% converses most
High wet-bulb temperature is 5.54 DEG C, and minimum temperature is 0 DEG C, and relative humidity 50%, wet-bulb temperature can be approximately 0 DEG C.
The cooling system darg mode are as follows: 8 points to early 8 points of evening, environment wet and dry bulb temperature all approaches 0 DEG C, this
When spray thrower 120 water pump all close, the water in catch basin 150 empties, and valve A401 is opened, and valve B402 and valve C403 are closed
It closes, relies solely on blower 110 and work at higher rotational speeds, can satisfy the index that circulating water outlet temperature is 30 DEG C；It closes on
Noon, temperature gradually rise again, and when blower 110 opens maximum, circulating water outlet temperature still cannot be up to standard, at this moment this opens heat pump system
System 200 provides additional cooling capacity, and valve A401 is closed, and valve B402 and valve C403 are opened, and control door 330 is closed, vaporization chamber
340 be confined space, and below standard recirculated water enters vaporization chamber 340 and further cools down under the help of heat pump system 200, then passes through
Valve C403 discharge.Cooling system still maintains dry-running at this time.
Under the lower operating condition of temperature, which is provided additional cold by the unlatching of intelligent control heat pump system
Amount, makes equipment enter dry-running in advance, does not use shower water, saved water resource.
Embodiment 5
Some day this area's January is chosen, maximum temperature is 0 DEG C in one day, and minimum temperature is -9 DEG C.
The cooling tower darg mode are as follows: 120 water pump of spray thrower is closed, and heat pump system 200 is closed, catch basin 150
It empties, valve A401 is opened, and valve B402 and valve C403 are closed, and control door 330 is closed, and blower 110 is opened, and cooling system is dry
Formula operation only adjusts 110 power of blower by intelligence to meet recirculated water requirement.
Claims (7)
1. circulating water cooling system, including enclosed tower cooler system (100), flow guide system (300) and heat pump system (200)；
The enclosed tower cooler system (100) includes the blower (110) from top to bottom set gradually, spray thrower (120), heat exchange plate
Manage (130), heat exchange layers (140) and catch basin (150), heat exchange coil (130) both ends be separately connected recirculated water water inlet with
Water outlet, the catch basin (150) connect spray thrower by water circulating pump (160)；
The flow guide system (300) includes baffle inclined plate (310), deflector (320), controls door (330) and vaporization chamber (340),
The baffle inclined plate (310) is set at the top of catch basin (150), extends obliquely downward from the side of catch basin (150) to catchmenting
The other side of slot (150), the deflector (320) are provided with muti-piece, from the end of baffle inclined plate (310) to catch basin (150)
It is inside arranged successively, in the horizontal direction, deflector (320) both ends connect catch basin (150) wall, in vertical direction, one end
Or it is connect with baffle inclined plate (310), or connect with catch basin (150) bottom, the other end and catch basin (150) bottom or baffle
There are diversion space between inclined plate (310), the deflector (320) of two kinds of connection types is alternately arranged；Catch basin (150) is innermost
Deflector (320) one end connects catch basin (150) bottom, and control door (330), the control door (330) are equipped on the other end
When closing, deflector (320), baffle inclined plate (310) and catch basin (150) wall form a closed warehouse, are vaporization chamber
(340)；
The heat pump system (200) includes with the sequentially connected evaporator of pipeline (210), compressor (220), condenser (230)
With expansion valve (240), expansion valve (240) connect forming circuit with evaporator (210)；The evaporator (210) is placed in vaporization chamber
(340) in；
Valve A(401 is arranged in the recirculated water water outlet of the heat exchange coil (130)), in the nearly water inlet extreme direction of valve A(401),
Tributary is drawn, is connected to by valve B(402) with the vaporization chamber (340) in catch basin (150), the bottom end of the catch basin (150)
It is connected by valve C(403) and recirculated water water outlet.
2. circulating water cooling system according to claim 1, which is characterized in that the blower (110) is axial flow blower.
3. circulating water cooling system according to claim 2, which is characterized in that the blower (110) is variable-frequency motor.
4. circulating water cooling system according to claim 1, which is characterized in that the heat exchange coil (130) is using strong
Change pipe, selected from one of bellows, screwed pipe and twisted tube.
5. circulating water cooling system according to claim 1, which is characterized in that the circulation of the heat exchange coil (130)
Water water inlet is under, and water outlet is upper.
6. circulating water cooling system according to claim 1, which is characterized in that the condenser (230) is set to blower
(110) top.
7. carrying out cooling method, including following manner using circulating water cooling system described in claim 1 ~ 6 any one:
I, is opened enclosed tower cooler system (100) when the best wet-bulb temperature of ambient wet bulb temperature≤enclosed Deethanizer design, is closed
Close heat pump system (200), valve A(401) open, valve B(402) and valve C(403) close, control door (330) is opened, only
Power by adjusting blower (110) and spray thrower (120) can meet recirculated water and go out water cooling temperature requirement；
When the type of cooling I is suitable for best wet bulb temperature-difference≤12 DEG C of the ambient wet bulb temperature with enclosed Deethanizer design；
II, is when the best wet-bulb temperature of ambient wet bulb temperature≤enclosed Deethanizer design, by the spray of enclosed tower cooler system (100)
Drench device (120) to close, blower (110) is opened, valve A(401) open, valve B(402) and valve C(403) close, control door
(330) it closes, meets cooling requirement only by adusting blower (110) frequency, be unable to meet demand when blower (110) is adjusted to maximum
When, valve A(401) is closed, valve B(402) and valve C(403) open, control door (330) is closed, while opening heat pump system
System (200) auxiliary temperature-reducing, cooling system enter dry-running；
The type of cooling II is suitable for the best wet bulb temperature-difference of ambient wet bulb temperature and enclosed Deethanizer design at 12 DEG C of >；
III, is when the best wet-bulb temperature of ambient wet bulb temperature > enclosed Deethanizer design, by the wind of enclosed tower cooler system (100)
Machine (110) and spray thrower (120) are opened to maximum and are still unable to meet demand, open heat pump system (200), valve A(401) it opens,
Valve B(402) and valve C(403) close, control door (330) is opened, and heat pump system (200) is to shower water auxiliary temperature-reducing.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111043876B (en) * | 2018-10-11 | 2021-08-24 | 济南蓝辰能源技术有限公司 | Hot water cooling closed cooling tower checking method |
| CN109630856B (en) * | 2018-11-14 | 2021-04-06 | 贵州航天特种车有限责任公司 | Self-circulation lubricating and cooling system of petroleum equipment |
| CN109595950A (en) * | 2019-01-22 | 2019-04-09 | 上海金日冷却设备有限公司 | Multi-state Complex-cooling tower |
| CN112781398A (en) * | 2021-01-27 | 2021-05-11 | 浙江开山银轮换热器有限公司 | Evaporation type heat exchanger |
| CN113654145B (en) * | 2021-08-24 | 2023-07-14 | 南京佳力图机房环境技术股份有限公司 | Spraying system of indirect evaporative cooling unit and air supply temperature control method |
| CN116929152A (en) * | 2023-09-18 | 2023-10-24 | 合肥中隐新材料有限公司 | Infrared stealth device of cooling tower under high temperature environment |
| CN117490442B (en) * | 2023-12-29 | 2024-03-08 | 珠海格力电器股份有限公司 | Cooling tower and cooler |
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