CN101398260A - Sealed cooling tower - Google Patents
Sealed cooling tower Download PDFInfo
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- CN101398260A CN101398260A CNA2008101616246A CN200810161624A CN101398260A CN 101398260 A CN101398260 A CN 101398260A CN A2008101616246 A CNA2008101616246 A CN A2008101616246A CN 200810161624 A CN200810161624 A CN 200810161624A CN 101398260 A CN101398260 A CN 101398260A
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Abstract
The invention discloses a close-typed cooling tower, which comprises a tower body, a fan, a first heat exchanger, a second heat exchanger, a water distributor, and a spraying water circulation device of the cooling tower; a water collecting basin is arranged at the bottom of the tower body, the fan, the first heat exchanger and the second heat exchanger are arranged inside the tower body, the first heat exchanger and the second heat exchanger consist of coil pipes and respectively comprise an inlet and an outlet; the water distributor is arranged between the first heat exchanger and the second heat exchanger; and the spraying water circulation device of the cooling tower comprises a water pump, a pipeline and a valve, and the water pump and the valve are respectively connected on the pipeline which is further connected with the water distributor. The proposal of the close-typed cooling tower leads summer cooling mediums to be cooled mainly through the first heat exchanger and winter cooling mediums to be cooled through the second heat exchanger, thus being characterized in that the structure is compact and the running cost is saved. The winter running mode can save large water resources and energies, and further improve the running reliability thereof.
Description
Technical field
The present invention relates to a kind of cooling tower, a kind of sealed cooling tower of more specifically saying so.
Background technology
The cooling tower effect is that circulating fluid is carried out heat exchange in tower, to reach the effect to the circulating fluid cooling.
The open type cooling tower is by sensible heat and latent heat mode circulating fluid to be cooled off, and the latent heat mode is that part circulating fluid (water) evaporation is reached the cooling purpose of evaporating liquid not, and the sensible heat formula is that direct contact heat transfer cools off circulating fluid.This kind cooling tower has the high characteristics of heat exchanger effectiveness, but has the big deficiency of consumption of water simultaneously.On the other hand, the open type cooling tower increases its salinity in the process that recirculated water consumes, and extraneous simultaneously impurity such as dust also enter in the circulating fluid easily.Therefore for some occasion high to water quality requirement, as chemical industry factory, power plant, smeltery etc., equipment and the abominable occasion of running environment that operation in 24 hours can not be interrupted just can not be used the open type cooling tower.
Sealed cooling tower has been widely used in fields such as process industry field, nuclear power station, transformer station, transformer, pharmacy such as welding, moulding, injection moulding, squeezing, oil pressure machinery.The flow through heat exchanger of cooling tower inside of existing sealed cooling tower cooling medium carries out heat exchange by recirculated water in heat exchanger coils and the cooling tower, thereby reaches the purpose of cool stream through the medium of heat exchanger.The problem of this sealed cooling tower maximum is: do not consider the environment weather factor, no matter be spring, autumn, winter or summer, all come the medium of cool stream through heat exchanger by recirculated water in the water cooling tower.(or the early spring, late autumn) yet in the winter time because the temperature difference of the medium of the heat exchanger of flowing through and air is big, only needs the air heat exchanger outer surface of flowing through just can reach the purpose of cool stream through the medium of heat exchanger.That is to say that for guaranteeing normally operation under various environment, existing sealed cooling tower designs its heat removal capacity according to worst operating mode.Therefore existing sealed cooling tower not only causes the waste of the water resource (shower water) and the energy (water pump power consumption), and since winter shower water freeze easily, therefore also increased cooling tower overhaul of the equipments, maintenance cost, made the operational reliability of online equipment also be subjected to influence.
25 days December calendar year 2001 of State Intellectual Property Office disclosed " a kind of cooling tower and manufacture method thereof and purposes " (open (CN1428585), the cooling tower of this patent documentation introduction utilizes the cold fluid pass (air channel) of open type cooling tower to set up independently heat loss through conduction device indirectly, shared blower fan of cooling tower and tower body upgrade to the multimedia that has cooling tower and air cooler function concurrently with it, the user needn't invest and build air cooler with selecting in addition, just can become airtight (doing) formula recirculating cooling water system and switching mutually with opening wide (wetting) formula Retrofit of Circulation Cooling Water System easily, its winter " is done " summer " wetting " alternate run pattern.But owing to still according to the method for operation of open type cooling tower, therefore do not overcome the drawback that existing open type cooling tower exists its summer, its operating efficiency also awaits further raising simultaneously.
Summary of the invention
At above-mentioned situation, the problem that quasi-solution of the present invention is determined provides the sealed cooling tower of a kind of compact conformation, operating cost province.The energy conserve water resource and the energy increase its operational reliability simultaneously.
For achieving the above object, the present invention has adopted following technical scheme: a kind of sealed cooling tower comprises tower body, blower fan, first heat exchanger, second heat exchanger, water-locator, cooling tower shower water EGR;
The bottom of described tower body is provided with collecting-tank;
Described blower fan is located in the tower body, and described blower fan comprises motor and the impeller that is connected with motor shaft;
Described first heat exchanger, second heat exchanger are in tower body, and described first heat exchanger, second heat exchanger are made up of coil pipe, comprise an import and an outlet respectively;
Described water-locator is between first heat exchanger and second heat exchanger;
Described cooling tower shower water EGR comprises water pump, pipeline and valve, and described water pump and valve are connected on the pipeline, also are connected with water-locator on the described pipeline.
As preferably, the fin that is connected on described second heat exchanger, described fin is vertical with coil pipe.The coil pipe outer wall of described second heat exchanger is provided with ripple.
Described first heat exchanger inlets is communicated with the outlet of second heat exchanger, or first heat exchanger outlet is communicated with the import of second heat exchanger.Also can be that described first heat exchanger inlets is communicated with the import of second heat exchanger, first heat exchanger outlet be communicated with the outlet of second heat exchanger, is provided with valve at the import or export of described first heat exchanger and second heat exchanger.
Above-mentioned sealed cooling tower, it can also comprise spray equipment in tower body, places between the blower fan and second heat exchanger.It can also comprise temperature sensor and controller, and described temperature sensor is in first heat exchanger inlets or outlet, or on the import or export of second heat exchanger, described controller is electrically connected with temperature sensor, motor, water pump.
Owing to adopted technique scheme, in summer (or spring end, autumn at the beginning of), the temperature difference of cooling medium and environment temperature is less, cooling medium is mainly by first cools down, being cooling medium first heat exchanger coil of flowing through, also can be cooling medium first heat exchanger coil of flowing through simultaneously, and shower water EGR and blower fan are worked simultaneously, water-locator sprays first cools down with recirculated water in the cooling tower, and is just identical with existing sealed cooling tower working method.
Meanwhile, because the effect of circulated sprinkling water, the humid air temperature that enters second heat exchanger reduces greatly, makes the higher fluid of temperature in second heat exchanger obtain cooling.
By the collaborative cooling of first heat exchanger and second heat exchanger, guaranteed the finishing of cooling task in summer.
(or the early spring, late autumn) in the winter time, the temperature difference of cooling medium and environment temperature is bigger, and cooling medium is by second cools down, and at this moment, cooling tower spray EGR is not worked, and has only blower fan work.The fin that on second heat exchanger, is connected, or the coil pipe outer wall is provided with ripple, increased the efficient of heat exchange.
The group of temperature sensor, controller is gone into, can make the method for operation state of sealed cooling tower carry out conversion automatically, in general when the temperature difference of cooling medium and environment temperature during greater than 15 ℃, the employing winter running mode, when the temperature difference is not more than 15 ℃, adopt the method for operation in summer.Therefore sealed cooling tower of the present invention has compact conformation, operating cost is economized characteristics.The method of operation of (or the early spring, late autumn) can be saved the great lot of water resources and the energy especially in the winter time, and can also prevent has increased its operational reliability because of the freezing pipeline that causes, water pump destroy.
Description of drawings
Fig. 1 is this practical sealed cooling tower structural representation;
Fig. 2 is the structural representation of another embodiment.
Among the figure, 1: tower body, 2: blower fan, 3: the first heat exchangers, 4: the second heat exchangers, 5: water-locator, 6: shower water EGR, 7: spray equipment, 8: temperature sensor, 9: controller, 1-1: collecting-tank, 2-1: motor, 2-2: impeller, 6-1: water pump, 6-2: pipeline, 6-3: valve, 4-1: fin.
The specific embodiment
As shown in Figure 1 and Figure 2, sealed cooling tower of the present utility model comprises tower body 1, blower fan 2, first heat exchanger 3, second heat exchanger 4, water-locator 5, cooling tower shower water EGR 6.
The bottom of described tower body 1 is provided with collecting-tank 1-1.Described blower fan 2 is located in the tower body 1, and according to different towers, blower fan 2 can be located at tower body 1 top-side and bottom.Described blower fan 2 comprises motor 2-1 and the impeller 2-2 that is connected with motor shaft; Described first heat exchanger 3, second heat exchanger 4 are in tower body 1, and described first heat exchanger 3, second heat exchanger 4 are made up of coil pipe, comprise an import and an outlet respectively; Described water-locator 5 is between first heat exchanger 3 and second heat exchanger 4; Described shower water EGR 6 comprises water pump 6-1, pipeline 6-2 and valve 6-3, and described water pump 6-1 and valve 6-3 are connected on the pipeline 6-2, also is connected with water-locator 5 on the described pipeline 6-2.
As preferred version, be the fin 4-1 that is connected on described second heat exchanger 4, described fin 4-1 is vertical with coil pipe, and fin 4-1 is generally made by the good metal material of thermal conductivity.The coil pipe outer wall that also can be described second heat exchanger 4 is provided with the structure that ripple and so on can increase heat transfer area.Can improve the heat transfer efficiency of second heat exchanger 4 and outside air like this.
The pipeline of first heat exchanger 3, second heat exchanger 4 is connected with following two kinds of methods:
The one, 3 imports of described first heat exchanger are communicated with the outlet of second heat exchanger 4, or 3 outlets of first heat exchanger are communicated with the import of second heat exchanger 4.That is to say that a heat exchanger 3 imports and second heat exchanger 4 are to be connected in series, this structure summer (or spring end, autumn at the beginning of) running status, the second also synthetic operation of heat exchanger 4 in 3 work of first heat exchanger; Winter, (or the early spring, late autumn) running status mainly was that second heat exchanger 4 also moves; Simultaneously, medium also flows through first heat exchanger.
The 2nd, 3 imports of described first heat exchanger are communicated with the import of second heat exchanger 4, and the outlet of first heat exchanger 3 is communicated with the outlet of second heat exchanger 4, are provided with valve at the import or export of described first heat exchanger 3 and second heat exchanger 4.3 imports of this structure first heat exchanger, second heat exchanger 4 are independently, that is to say (or spring end, autumn at the beginning of) medium first heat exchanger 3 of only flowing through in summer, without second heat exchanger 4; Winter (or the early spring, late autumn) running status, medium second heat exchanger 4 of only flowing through is without first heat exchanger.
For saving labour cost, improve the automaticity of sealed cooling tower, it also comprises temperature sensor 8 and controller 9, described temperature sensor 8 is on first heat exchanger, 3 import or exports, or on the import or export of second heat exchanger 4, described controller 9 is electrically connected with temperature sensor 8, motor 2-1, water pump 6-1, like this can be according to the reading of temperature sensor 8, the output of self-regulation motor 2-1, water pump 6-1, or the duty that automaticallyes switch summer, winter.
Sealed cooling tower of the present utility model can be reverse-flow, also can be cross-flow type or mixed-flow.
Fig. 1 is reverse-flow sealed cooling tower, and its first heat exchanger 3 and second heat exchanger 4 are vertical distribution, and first heat exchanger 3 is above water-locator 5, and second heat exchanger 4 is below water-locator 5.In reverse-flow sealed cooling tower, it can also comprise spray equipment 7, and described spray equipment 7 places between the blower fan 2 and second heat exchanger 4 in tower body 1, and spray equipment 7 mainly is to clean to cohere impurity on second heat exchanger 4.
Fig. 2 is the cross-flow type sealed cooling tower, and its first heat exchanger 3 and second heat exchanger 4 distribute for horizontal direction.Because therefore its embodiment and foregoing similar is not described in detail.
Claims (8)
1, a kind of sealed cooling tower comprises tower body (1), blower fan (2), first heat exchanger (3), second heat exchanger (4), water-locator (5), cooling tower shower water EGR (6);
The bottom of described tower body (1) is provided with collecting-tank (1-1);
Described blower fan (2) is located in the tower body (1), and described blower fan (2) comprises motor (2-1) and the impeller that is connected with motor shaft (2-2);
Described first heat exchanger (3), second heat exchanger (4) are in tower body (1), and described first heat exchanger (3), second heat exchanger (4) are made up of coil pipe, comprise an import and an outlet respectively;
Described water-locator (5) is between first heat exchanger (3) and second heat exchanger (4);
Described cooling tower shower water EGR (6) comprises water pump (6-1), pipeline (6-2) and valve (6-3), and described water pump (6-1) and valve (6-3) are connected on the pipeline (6-2), also is connected with water-locator (5) on the described pipeline (6-2).
2, sealed cooling tower according to claim 1 is characterized in that the fin (4-1) that is connected on described second heat exchanger (4), and described fin (4-1) is vertical with coil pipe.
3, sealed cooling tower according to claim 1 is characterized in that the coil pipe outer wall of described second heat exchanger (4) is provided with ripple.
4, sealed cooling tower according to claim 1 is characterized in that described first heat exchanger (3) import is communicated with the outlet of second heat exchanger (4), or first heat exchanger (3) outlet is communicated with the import of second heat exchanger (4).
5, sealed cooling tower according to claim 1, it is characterized in that described first heat exchanger (3) import is communicated with the import of second heat exchanger (4), first heat exchanger (3) outlet is communicated with the outlet of second heat exchanger (4), is provided with valve at the import or export of described first heat exchanger (3) and second heat exchanger (4).
6,, it is characterized in that it also comprises spray equipment (7) in tower body (1), places between blower fan (2) and second heat exchanger (4) according to any described sealed cooling tower of claim 1-5.
7, according to any described sealed cooling tower of claim 1-5, it is characterized in that it also comprises temperature sensor (8) and controller (9), described temperature sensor (8) is on first heat exchanger (3) import or export, or on the import or export of second heat exchanger (4), described controller (9) is electrically connected with temperature sensor (8), motor (2-1), water pump (6-1).
8, sealed cooling tower according to claim 7, it is characterized in that it also comprises temperature sensor (8) and controller (9), described temperature sensor (8) is on first heat exchanger (3) import or export, or on the import or export of second heat exchanger (4), described controller (9) is electrically connected with temperature sensor (8), motor (2-1), water pump (6-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101616246A CN101398260A (en) | 2008-09-17 | 2008-09-17 | Sealed cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101616246A CN101398260A (en) | 2008-09-17 | 2008-09-17 | Sealed cooling tower |
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| CN101398260A true CN101398260A (en) | 2009-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101616246A Pending CN101398260A (en) | 2008-09-17 | 2008-09-17 | Sealed cooling tower |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252536A (en) * | 2011-04-28 | 2011-11-23 | 上海理工大学 | Evaporative cooler or condenser of full pipe bundle distributed water |
| RU2446679C2 (en) * | 2009-12-31 | 2012-04-10 | Федеральное Государственное Образовательное Учреждение Высшего Профессионального Образования "Великолукская государственная сельскохозяйственная академия" | Device for use of natural cold |
| RU2486749C2 (en) * | 2011-07-08 | 2013-07-10 | Федеральное Государственное Образовательное Учреждение Высшего Профессионального Образования "Великолукская государственная сельскохозяйственная академия" | Plant using natural cold |
| CN105040086A (en) * | 2015-08-14 | 2015-11-11 | 刘世贵 | Multifunctional evaporation cold-water membrane cooler |
| CN106288850A (en) * | 2015-06-01 | 2017-01-04 | Spx冷却技术公司 | The heat exchange bypass of air-air and method for wet cooling tower equipment |
| CN107300331A (en) * | 2017-07-25 | 2017-10-27 | 广西农垦糖业集团红河制糖有限公司 | A kind of spray-type hot water cooling device |
| CN108036657A (en) * | 2018-01-17 | 2018-05-15 | 酷仑冷却技术（上海）有限公司 | A kind of water-saving hermetic type cooling tower of combined type and its control method |
| RU2713315C1 (en) * | 2019-06-17 | 2020-02-04 | Федеральное государственное бюджетное научное учреждение "Федеральный научный агроинженерный центр ВИМ" (ФГБНУ ФНАЦ ВИМ) | Accumulator for cooling milk on farms using natural cold |
| CN112997042A (en) * | 2018-10-03 | 2021-06-18 | 艾威普科公司 | Modular counter-flow cooling tower |
| CN114234666A (en) * | 2021-12-20 | 2022-03-25 | 中车株洲电力机车有限公司 | Electric locomotive and double-loop cooling tower and control method thereof |
| US11674756B2 (en) | 2018-10-03 | 2023-06-13 | Evapco, Inc. | Modular counterflow cooling tower |
| CN116512486A (en) * | 2023-07-05 | 2023-08-01 | 江苏智富新材料科技有限公司 | Adjustable cooling forming device and method for plastic product production and processing |
-
2008
- 2008-09-17 CN CNA2008101616246A patent/CN101398260A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2446679C2 (en) * | 2009-12-31 | 2012-04-10 | Федеральное Государственное Образовательное Учреждение Высшего Профессионального Образования "Великолукская государственная сельскохозяйственная академия" | Device for use of natural cold |
| CN102252536A (en) * | 2011-04-28 | 2011-11-23 | 上海理工大学 | Evaporative cooler or condenser of full pipe bundle distributed water |
| RU2486749C2 (en) * | 2011-07-08 | 2013-07-10 | Федеральное Государственное Образовательное Учреждение Высшего Профессионального Образования "Великолукская государственная сельскохозяйственная академия" | Plant using natural cold |
| CN106288850A (en) * | 2015-06-01 | 2017-01-04 | Spx冷却技术公司 | The heat exchange bypass of air-air and method for wet cooling tower equipment |
| CN105040086A (en) * | 2015-08-14 | 2015-11-11 | 刘世贵 | Multifunctional evaporation cold-water membrane cooler |
| CN107300331A (en) * | 2017-07-25 | 2017-10-27 | 广西农垦糖业集团红河制糖有限公司 | A kind of spray-type hot water cooling device |
| CN108036657A (en) * | 2018-01-17 | 2018-05-15 | 酷仑冷却技术（上海）有限公司 | A kind of water-saving hermetic type cooling tower of combined type and its control method |
| CN108036657B (en) * | 2018-01-17 | 2023-07-25 | 酷仑冷却技术（上海）有限公司 | Combined type water-saving closed cooling tower and control method thereof |
| CN112997042A (en) * | 2018-10-03 | 2021-06-18 | 艾威普科公司 | Modular counter-flow cooling tower |
| US11674756B2 (en) | 2018-10-03 | 2023-06-13 | Evapco, Inc. | Modular counterflow cooling tower |
| RU2713315C1 (en) * | 2019-06-17 | 2020-02-04 | Федеральное государственное бюджетное научное учреждение "Федеральный научный агроинженерный центр ВИМ" (ФГБНУ ФНАЦ ВИМ) | Accumulator for cooling milk on farms using natural cold |
| CN114234666A (en) * | 2021-12-20 | 2022-03-25 | 中车株洲电力机车有限公司 | Electric locomotive and double-loop cooling tower and control method thereof |
| CN114234666B (en) * | 2021-12-20 | 2023-09-05 | 中车株洲电力机车有限公司 | Electric locomotive, double-loop cooling tower thereof and control method |
| CN116512486A (en) * | 2023-07-05 | 2023-08-01 | 江苏智富新材料科技有限公司 | Adjustable cooling forming device and method for plastic product production and processing |
| CN116512486B (en) * | 2023-07-05 | 2023-10-03 | 江苏智富新材料科技有限公司 | Adjustable cooling forming device and method for plastic product production and processing |
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Open date: 20090401 |