CN105987620A - High-temperature closed cooling tower with pre-cooling device - Google Patents
High-temperature closed cooling tower with pre-cooling device Download PDFInfo
- Publication number
- CN105987620A CN105987620A CN201510063556.XA CN201510063556A CN105987620A CN 105987620 A CN105987620 A CN 105987620A CN 201510063556 A CN201510063556 A CN 201510063556A CN 105987620 A CN105987620 A CN 105987620A
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- cooling tower
- serpentine coil
- water
- serpentine
- high temperature
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Abstract
The invention discloses a high-temperature closed cooling tower with a pre-cooling device. The high-temperature closed cooling tower comprises a cooling tower body. A spraying branch pipe is arranged inside the cooling tower body. The spraying branch pipe is connected with a spraying water pump through a first main pipeline. A first serpentine coil pipe and a heat dissipation filler filtering net are arranged below the spraying branch pipe. A water accumulation tank is arranged at the bottom of the cooling tower body. A second serpentine coil pipe is arranged inside the water accumulation tank. The second serpentine coil pipe is connected with the first serpentine coil pipe through a second main pipeline. The first serpentine coil pipe and the second serpentine coil pipe are arranged, the second serpentine coil pipe is located inside the water accumulation tank to be used for water immersion heat exchange, pre-cooling is well achieved inside the high-temperature closed cooling tower, high-temperature fluid is pre-cooled and then enters the first serpentine coil pipe, and thus the situation that sprayed water instantaneously evaporates on the surface of the first serpentine coil pipe due to overheated high-temperature water is avoided, and the problem that high-temperature fluid of high-temperature closed cooling towers is prone to scaling on the outer surfaces of coil pipes and cannot be cooled is solved.
Description
Technical field
The present invention relates to a kind of cooling tower, particularly relate to a kind of high temperature closed cooling tower with pre-cooler.
Background technology
The fluid temperature (F.T.) of general closed cooling tower cooling is below 60 DEG C.Because closed cooling tower at these temperatures
In coil pipe easily keep the moistening of outer surface.In the case of temperature is too high, shower water falls to quick vapour after coil surface
Changing evaporation, the impurity in water is stayed on the outer surface of coil pipe, in the accumulation waterborne of coil pipe outer surface, forms dirt, dirt
Gradually thicken and have a strong impact on coil heat exchange energy, finally lose cooling capacity.Therefore the field in high temperature fluid cooling is closed
Formula cooling tower is also difficult to reach the most perfect application foundation.
The cooling of the current high temperature fluid (more than 60 DEG C) for enclosed, first to enter before entering closed cooling tower
Row pre-cooling.Two ways is taked in generally pre-cooling: one is to carry out fluid residence, with natural sky with big liquid pool or big casing
Gas carries out heat exchange.If this form opens wide cooling can cause the volatilization of fluid or contaminated.Close cooling, then
Rate of cooling is the slowest, it is desirable to casing is the biggest.Another way is to add cooling tower with plate type heat exchanger or pipe heat exchanger
Cool down with circulation.This mode has required cooling tower, heat exchanger, water circulating pump, pipe-line system etc..
Not only form is complex, fund input big, and power consumption is big, operating cost is high.
Summary of the invention
The technical problem to be solved is to provide a kind of high temperature closed cooling tower with pre-cooler, it is possible to
Avoid overheated high-temperature water to make shower water at copper pipe surface flash evapn, solve airtight cooling tower high temperature fluid at dish
The easy fouling of tube outer surface and the problem that can not cool down.
The present invention solves that above-mentioned technical problem employed technical scheme comprise that a kind of high temperature with pre-cooler of offer
Closed cooling tower, including cooling column body, is provided with spray arm in described cooling column body, described spray arm is by the
One main pipeline is connected with feeding spraying pump, is provided with first group of serpentine coil and heat radiation filler filters below described spray arm
Net, wherein, the bottom of described cooling column body is water tank, is provided with second group of serpentine coil, institute in described water tank
State second group of serpentine coil to be connected by the second main pipeline and first group of serpentine coil.
The above-mentioned high temperature closed cooling tower with pre-cooler, wherein, the water inlet end of described second group of serpentine coil
For high temperature inlet, water side is middle temperature liquid outlet；The water inlet end of described first group of serpentine coil is middle temperature inlet,
Water side is low temperature liquid outlet；The fluid temperature (F.T.) of described high temperature inlet is 80 DEG C～90 DEG C, described middle temperature liquid outlet
Being 60 DEG C with the fluid temperature (F.T.) of middle temperature inlet, the fluid temperature (F.T.) of described low temperature liquid outlet is 35 DEG C.
The above-mentioned high temperature closed cooling tower with pre-cooler, wherein, described first group of serpentine coil includes many
Serpentine coil, the water inlet end of described many serpentine coils is all connected by collecting pipe with water side, in described collecting pipe
Being provided with dividing plate, many serpentine coils are divided into some groups and are together in series by described dividing plate.
The above-mentioned high temperature closed cooling tower with pre-cooler, wherein, described second group of serpentine coil includes many
Serpentine coil, the water inlet end of described many serpentine coils is all connected by collecting pipe with water side, in described collecting pipe
Being provided with dividing plate, many serpentine coils are divided into some groups and are together in series by described dividing plate.
The above-mentioned high temperature closed cooling tower with pre-cooler, wherein, described spray arm is evenly distributed with many
Individual nozzle.
The above-mentioned high temperature closed cooling tower with pre-cooler, wherein, the top of described cooling column body is provided with blower fan
Formation damp-heat air exports；Top and the side of described cooling column body are provided with fresh inlet.
The present invention contrasts prior art following beneficial effect: the high temperature with pre-cooler that the present invention provides closes
Formula cooling tower, by arranging first group of serpentine coil and second group of serpentine coil, described second group of serpentine coil is positioned at
In water tank, it is entirely fluid and water logging heat exchange, realizes well precooling inside high temperature closed cooling tower, make
High temperature fluid precool after enter back into first group of serpentine coil, thus avoid overheated high-temperature water to make shower water the
One group of serpentine coil surface flash evapn, solves airtight cooling tower high temperature fluid in the easy fouling of coil pipe outer surface
The problem that can not cool down.
Accompanying drawing explanation
Fig. 1 is that the present invention has the high temperature closed cooling tower front of pre-cooler and shows along main pipeline and coil pipe cross-section structure
It is intended to；
Fig. 2 is the high temperature closed cooling tower side structure schematic diagram that the present invention has pre-cooler.
In figure:
1 cooling column body 2 feeding spraying pump 3 first main pipeline
4 heat radiation filler drainage screen 5 water tank 6 blower fans
7 spray arm 8 nozzle 9 second main pipelines
10 maintenance door 12 second groups of serpentine coils of 11 first groups of serpentine coils
13 dividing plate 14 collecting pipe 15 high temperature inlets
16 middle temperature liquid outlet 17 middle temperature inlet 18 low temperature liquid outlet
19 fresh inlet 20 damp-heat air outlets
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is that the present invention has the high temperature closed cooling tower front of pre-cooler and shows along main pipeline and coil pipe cross-section structure
It is intended to；Fig. 2 is the high temperature closed cooling tower side structure schematic diagram that the present invention has pre-cooler.
Referring to Fig. 1 and Fig. 2, the high temperature closed cooling tower with pre-cooler that the present invention provides, including cooling tower
Body 1, is provided with spray arm 7 in described cooling column body 1, described spray arm 7 is by the first main pipeline 3 and spray
Water pump 2 is connected, and is provided with first group of serpentine coil 11 and heat radiation filler drainage screen 4 below described spray arm 7, its
In, the bottom of described cooling column body 1 is water tank 5, is provided with second group of serpentine coil 12 in described water tank 5,
Described second group of serpentine coil 12 is connected with first group of serpentine coil 11 by the second main pipeline 9.
The high temperature closed cooling tower with pre-cooler that the present invention provides, wherein, described second group of serpentine coil 12
Water inlet end be high temperature inlet 15, water side is middle temperature liquid outlet 16；Entering of described first group of serpentine coil 11
Water end (W.E.) is middle temperature inlet 17, and water side is low temperature liquid outlet 18；The fluid temperature (F.T.) of described high temperature inlet 15 can
With up to 80 DEG C～90 DEG C, the fluid temperature (F.T.) of described middle temperature liquid outlet 16 and middle temperature inlet 17 is about 60 DEG C, institute
State the fluid temperature (F.T.) of low temperature liquid outlet 18 can control to 35 DEG C and less.It is evenly distributed with on described spray arm 7
Multiple nozzles 8；The top of described cooling column body 1 is provided with blower fan 6 and forms damp-heat air outlet 20；Described cooling tower
The top of body 1 and side are provided with fresh inlet 19；Maintenance door 10 it is additionally provided with on described cooling column body 1.
The high temperature closed cooling tower with pre-cooler that the present invention provides, operation principle is as follows: by arranging first
Group serpentine coil 11 and second group of serpentine coil 12, first consider to avoid overheated high-temperature water to make shower water at copper pipe table
Face flash evapn, makes two set coil pipes the most as shown in the figure, and the high temperature fluid entering cooling tower is snakelike by first group
Second group of serpentine coil 12 is first passed around before coil pipe 11.According to the operation principle of heat exchanger, due to second group of snakelike dish
Pipe 12 is completely submerged in water tank 5, and the outer surface of its coil pipe does not occur water to evaporate, and is entirely fluid and changes with water logging
Heat, utilizes shower water circulation in cooling tower to be cooled and fluid in closed conduit carries out heat exchange.High-temperature stream
Body enters first group of serpentine coil 11 by the second main pipeline 9 after the pre-cooling of second group of serpentine coil 12 again, thus
Solve airtight cooling tower high temperature fluid first group of serpentine coil 11 easy fouling of outer surface asking of can not cooling down
Topic.
The present invention can realize high temperature fluid fast cooling in the biggest space and be because the temperature after shower water is cooled
Degree is relatively big with the Temperature Difference Ratio of high temperature fluid, thus heat exchange is rapid.It is set as 60 DEG C, shower water by the fluid after lowering the temperature
Water leg is by reaching less than 35 DEG C after cooling.By the hot property of different fluids is calculated, set heat exchanger
Heat exchange area, reach the effect of pre-cooling.The high-energy hot water sucking-off that feeding spraying pump 2 will swap out, after sprinkling through
Heat radiation filler drainage screen 4 fall in water tank 5 as precool water source, and through blower fan 6 drive air flowing will
Hot water is down to preferable temperature.
Hot water after preliminary cooling enters first group of cooling tower top serpentine coil 11 through piping again, now sprays
Water falls on first group of serpentine coil 11 surface, is wrapped by coil pipe major part area, and the heat of fluid is passed by tube wall
Passing shower water, now dry air is pumped in cooling tower by blower fan 6, when spraying water droplet and air contact, and one
Aspect, owing to there is pressure differential between water vapour surface and air, produces Evaporation Phenomenon, under the effect of the pressure by water
In most heat take away i.e. evaporation heat transfer；On the other hand by the transmission of heat by contact of air with water, thus to coil pipe
Interior medium cooling.
The shower water absorbing heat is dropped in heat radiation filler drainage screen 4, and hot water forms moisture film and sky when flowing through filling surface
Gas carries out heat exchange, and in tower under the effect of static pressure, hydrone, constantly to air evaporation, becomes steam and divides
Son, the mean kinetic energy of remaining hydrone will reduce, so that the temperature of shower water declines.
The high temperature closed cooling tower with pre-cooler that the present invention provides, wherein, described first group of serpentine coil 11
Including many serpentine coils, the water inlet end of described many serpentine coils is all connected by collecting pipe 14 with water side, institute
Being provided with dividing plate 13 in stating collecting pipe 14, many serpentine coils are divided into some groups and are together in series by described dividing plate 13.With
Sample ground, described second group of serpentine coil 12 also includes many serpentine coils, the water inlet end of described many serpentine coils and
Water side is all connected by collecting pipe 14, is provided with dividing plate 13 in described collecting pipe 14, and described dividing plate 13 is by many Serpentiss
Shape coil pipe is divided into some groups and is together in series；Again that the serpentine coil group after series connection is in parallel by collecting pipe, thus flexibly
Tube pass length is set, it is easy to installs and safeguards, meets various cooling requirement.
In sum, the present invention has filled up the space record that closed cooling tower cools down at high-temperature water, can be the most right
The high-temperature water of more than 80 DEG C carries out cooling down, lowering the temperature, and the highest chilling temperature that can be cooled down by closed cooling tower is significantly
Promote.And solve the phenomenon that shower water evaporates because coil surface temperature is overheated simultaneously, it is ensured that the moisturizing of shower water
Measure close with common closed cooling tower.Make that coil surface does not haves moisture evaporation and quickly fouling cannot normally heat exchange
Situation.Relative in former closed cooling tower, increase only one group of serpentine coil and just reached high-temperature water cooling
Purpose, the cost of increase is the lowest, uses process and operation maintenance also about the same with former closed cooling tower, only need to be
Pipeline outside cooling tower carries out insulation process, prevents from scalding；Can be achieved with carrying of at least 20 DEG C of coolant water temperatures
Rise.
Although the present invention discloses as above with preferred embodiment, so it is not limited to the present invention, any this area
Technical staff, without departing from the spirit and scope of the present invention, when a little amendment and perfect can be made, therefore this
Bright protection domain is when with being as the criterion that claims are defined.
Claims (6)
1. there is a high temperature closed cooling tower for pre-cooler, including cooling column body (1), described cooling column body
(1) being provided with spray arm (7) in, described spray arm (7) passes through the first main pipeline (3) and feeding spraying pump (2)
Being connected, described spray arm (7) lower section is provided with first group of serpentine coil (11) and heat radiation filler drainage screen (4),
It is characterized in that, the bottom of described cooling column body (1) is water tank (5), is provided with in described water tank (5)
Two groups of serpentine coils (12), described second group of serpentine coil (12) passes through the second main pipeline (9) and first group of Serpentis
Shape coil pipe (11) is connected.
There is the high temperature closed cooling tower of pre-cooler the most as claimed in claim 1, it is characterised in that described
The water inlet end of second group of serpentine coil (12) is high temperature inlet (15), and water side is middle temperature liquid outlet (16)；
The water inlet end of described first group of serpentine coil (11) is middle temperature inlet (17), and water side is low temperature liquid outlet (18)；
The fluid temperature (F.T.) of described high temperature inlet (15) is 80 DEG C～90 DEG C, and described middle temperature liquid outlet (16) and middle temperature are entered
The fluid temperature (F.T.) of liquid mouth (17) is 60 DEG C, and the fluid temperature (F.T.) of described low temperature liquid outlet (18) is 35 DEG C.
There is the high temperature closed cooling tower of pre-cooler the most as claimed in claim 1, it is characterised in that described
First group of serpentine coil (11) includes many serpentine coils, and water inlet end and the water side of described many serpentine coils are equal
Being connected by collecting pipe (14), be provided with dividing plate (13) in described collecting pipe (14), described dividing plate (13) will be many
Root serpentine coil is divided into some groups and is together in series.
There is the high temperature closed cooling tower of pre-cooler the most as claimed in claim 1, it is characterised in that described
Second group of serpentine coil (12) includes many serpentine coils, and water inlet end and the water side of described many serpentine coils are equal
Being connected by collecting pipe (14), be provided with dividing plate (13) in described collecting pipe (14), described dividing plate (13) will be many
Root serpentine coil is divided into some groups and is together in series.
There is the high temperature closed cooling tower of pre-cooler the most as claimed in claim 1, it is characterised in that described
It is evenly distributed with multiple nozzle (8) on spray arm (7).
There is the high temperature closed cooling tower of pre-cooler the most as claimed in claim 1, it is characterised in that described
The top of cooling column body (1) is provided with blower fan (6) and forms damp-heat air outlet (20)；Described cooling column body (1)
Top and side be provided with fresh inlet (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063556.XA CN105987620A (en) | 2015-02-06 | 2015-02-06 | High-temperature closed cooling tower with pre-cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063556.XA CN105987620A (en) | 2015-02-06 | 2015-02-06 | High-temperature closed cooling tower with pre-cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105987620A true CN105987620A (en) | 2016-10-05 |
Family
ID=57037974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510063556.XA Pending CN105987620A (en) | 2015-02-06 | 2015-02-06 | High-temperature closed cooling tower with pre-cooling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105987620A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643206A (en) * | 2017-02-27 | 2017-05-10 | 无锡市科巨机械制造有限公司 | Efficient rapid cooling type closed cooling tower |
| CN110113910A (en) * | 2019-03-28 | 2019-08-09 | 西安中车永电电气有限公司 | A kind of detachable composite cooling tower |
| CN110986627A (en) * | 2019-12-09 | 2020-04-10 | 米菁 | Novel air cooler |
| CN112781403A (en) * | 2020-10-31 | 2021-05-11 | 刘万辉 | Spraying type heat exchange device for cooling water circulation collection |
| CN114307225A (en) * | 2021-12-30 | 2022-04-12 | 苏州赢众环保有限公司 | Steam condensation method |
| CN115218684A (en) * | 2021-04-15 | 2022-10-21 | 中国科学院广州能源研究所 | Compound closed cooling tower |
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| CN203337004U (en) * | 2013-05-22 | 2013-12-11 | 上海万享冷却设备有限公司 | Heat exchange tube structure for closed cooling tower |
| CN204438841U (en) * | 2015-02-06 | 2015-07-01 | 上海万享冷却设备有限公司 | There is the high temperature closed cooling tower of pre-cooler |
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Patent Citations (9)
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| JPS5259352A (en) * | 1975-11-11 | 1977-05-16 | Ishikawajima Harima Heavy Ind Co Ltd | Evaporative heat exchanger |
| CN2844796Y (en) * | 2005-11-16 | 2006-12-06 | 河南中轴集团有限公司 | Evaporating condenser with precooler |
| CN200968788Y (en) * | 2006-11-16 | 2007-10-31 | 洛阳隆华制冷设备有限公司 | Evaporation air cooling type heat-exchanger |
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| CN204438841U (en) * | 2015-02-06 | 2015-07-01 | 上海万享冷却设备有限公司 | There is the high temperature closed cooling tower of pre-cooler |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643206A (en) * | 2017-02-27 | 2017-05-10 | 无锡市科巨机械制造有限公司 | Efficient rapid cooling type closed cooling tower |
| CN110113910A (en) * | 2019-03-28 | 2019-08-09 | 西安中车永电电气有限公司 | A kind of detachable composite cooling tower |
| CN110986627A (en) * | 2019-12-09 | 2020-04-10 | 米菁 | Novel air cooler |
| CN112781403A (en) * | 2020-10-31 | 2021-05-11 | 刘万辉 | Spraying type heat exchange device for cooling water circulation collection |
| CN112781403B (en) * | 2020-10-31 | 2022-07-12 | 临沂优嘉能源热力有限公司 | Spraying type heat exchange device for cooling water circulation collection |
| CN115218684A (en) * | 2021-04-15 | 2022-10-21 | 中国科学院广州能源研究所 | Compound closed cooling tower |
| CN114307225A (en) * | 2021-12-30 | 2022-04-12 | 苏州赢众环保有限公司 | Steam condensation method |
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Application publication date: 20161005 |