CN203893695U - Indirect air cooling tower - Google Patents
Indirect air cooling tower Download PDFInfo
- Publication number
- CN203893695U CN203893695U CN201420304334.3U CN201420304334U CN203893695U CN 203893695 U CN203893695 U CN 203893695U CN 201420304334 U CN201420304334 U CN 201420304334U CN 203893695 U CN203893695 U CN 203893695U
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- radiator
- cooling tower
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Abstract
The utility model discloses an indirect air cooling tower. The indirect air cooling tower comprises a tower body and a cooling fan section, wherein the cooling fan section is circumferentially arranged on the bottom of the tower body, the cooling fan section comprises at least one cooling triangle which is formed by connecting a heat radiator and a louver, the louver is formed by connecting an upper window body and a lower window body, and both the upper window body and the lower window body are respectively connected with a transmission device; the indirect air cooling tower also comprises a controller, and the transmission devices are connected with the controller after being connected together in parallel; each transmission device comprises an actuating mechanism and a link lever which is connected with the actuating mechanism, wherein the link lever is connected with vanes of the louver through a crankshaft. The indirect air cooling tower has the advantages that a temperature measuring element is configured to effectively monitor the pipe bundle temperature of the heat radiator, sectional opening/closing of the louver can be realized through the transmission devices, the cold air is prevented from drastically exchanging the heat with a freezable part of an upper pipe bundle or a lower pipe bundle of the heat radiator, the freeze damage of the pipe bundles of the heat radiator can be prevented, the normal operation of the system is guaranteed, the problem of preventing the freezing of the heat radiator in the air cooling tower in winter can be solved, and the service life of the heat radiator can be prolonged.
Description
Technical field
The utility model relates to indirect air cooling technical field, in particular to a kind of indirect dry cooling tower.
Background technology
Along with a large amount of employings of thermal power plant indirect air cooling system, in use always there are a lot of problems in indirect air cooling system.At present, the vertically arranged indirect air cooling system of traditional radiator generally adopts control radiator bottom leaving water temperature to reach antifreeze object.But along with environment temperature is when lower, in indirect air cooling system, recirculated water in the heat radiator fin pipe of indirect dry cooling tower easily produces and freezes to cause finned tube spalling, thereby cause indirect air cooling unit that the freezing accident of radiator frequently occurs, water circulation interruption, a cooling system and unit outage when serious, the freezing recovery technique difficulty of radiator is high, workload large, the time is also long, so the loss causing is huge.
Normally in service at indirect dry cooling tower by statistics, the tube bank rupture location that generation radiator freezes is distributed in the outside tube bank of vertically arranged rectangle radiator windward side the first half substantially.Main cause have following some: 1) radiator upper water flow velocity is low, and recirculated water easily freezes, 2) not set temperature measuring point of radiator top, cannot monitor the temperature of Yi Dong position, radiator top cooling tube bundle outer surface, 3) shutter of controlling at present in addition the cooling triangle intake of each radiator is realized by a pull bar driving, shutter aperture under the driving of a pull bar is consistent, cannot realize the independent control that commute freezes the intake at position, thereby cause the outboard tube binding ice of radiator windward side the first half to break, in actual motion, environment temperature is lower, in order to ensure higher radiator leaving water temperature, shutter aperture is less, under shutter guide functions, cold wind more blows to the outside tube bank of radiator windward side the first half, and radiator bottom intake is less, even form Air Flow dead angle, although can cause like this radiator bottom leaving water temperature to keep very high, but still situation about can break at radiator top generator tube binding ice.Therefore radiator preventing freeze in winter problem in first extremely frigid zones use indirect air cooling system must solve indirect air cooling system.
Summary of the invention
For solving the easy bursting by freezing of heat radiator fin pipe of existing indirect air cooling system hollow cold tower, thereby cause indirect air cooling unit that the freezing accident of radiator frequently occurs, water circulation interruption, a cooling system and unit outage when serious, the freezing recovery technique difficulty of radiator is high, workload large, the time is also long, so defects such as the loss causing are huge, the purpose of this utility model is to provide a kind of radiator vertically arranged indirect dry cooling tower.
For achieving the above object, a kind of indirect dry cooling tower is provided in the utility model embodiment, comprise tower body and cooling sector, cooling sector is around being arranged in tower body bottom, cooling sector comprises the cooling triangle that at least one is connected to form by radiator and shutter, and shutter is connected and composed by upper forms, lower forms, upper forms and the equal connection for transmission equipment of lower forms, this indirect dry cooling tower also comprises controller, after drive apparatus parallel connection, is connected with controller; Drive apparatus comprises executing agency and the gangbar being connected with executing agency, and gangbar is connected with the blade of shutter by bent axle.
In the technical program, this indirect dry cooling tower structurally improves compared with existing air cooling tower, first cooling sector vertical surrounding is arranged in tower body bottom, and cooling sector is made up of multiple cooling triangles, tower body bottom part ring is wound with at least one sector, arrange according to user demand, cooling triangle is connected to form by two rectangle radiators and shutter in addition, the closing and open of shutter affected the ventilation and heat situation of radiator tube bank, shutter comprises forms and lower forms, and the utility model has been realized the segmentation control of upper forms and lower forms, upper forms and the equal connection for transmission equipment of lower forms, drive apparatus is for controlling the unlatching of forms and lower forms or closing, in addition between drive apparatus for being connected with controller again after being connected in parallel, realize in the time that upper forms are closed or opened, can not impact lower forms, overcome in prior art shutter aperture under the driving of a pull bar consistent, cannot realize the independent control that commute freezes the intake at position, thereby cause the radiator windward side upper bundle defect such as break of freezing, going up in addition the drive apparatus of forms and lower forms all controls by controller, in the time that radiator upper bundle temperature is lower, the executing agency of controller control drive apparatus drives gangbar, close forms thereby close, ensure that radiator upper bundle can not freeze and break, design ingenious, operation has realized intellectuality, save manpower, workable.
Further, executing agency comprises motor and the gear-box being connected with motor, and motor is connected with controller, and gear-box and gangbar are in transmission connection.In the technical program, executing agency is further described, and executing agency comprises motor and gear-box, and motor starts under the control of controller, and starter receiver case, gear-box drives gangbar transmission, thereby closes the blade of shutter, easy to use, simple to operate, mechanization and intelligentized operation, saved manpower, practical.
Further, fixing at least 4 temperature elements on each cooling sector, temperature element is connected with controller.In the technical program, on cooling sector, fix temperature element, temperature element is for measuring the temperature of radiator tube bank, and temperature element is connected with controller, and the tube bank temperature parameter of the radiator detecting is passed to controller, realize the strict monitoring to radiator tube bank temperature, controller can be restrained temperature to radiator and be shown, is the temperature of the outside tube bank of observable radiator, thereby controls between operator by the display screen of controller, simple to operate, practical.
Further, temperature element is fixed on the radiator in cooling sector, radiator is divided into upper bundle and lower tube bundle, and upper bundle and lower tube bundle are corresponding with upper forms, lower window position respectively, and temperature element is fixed on the windward side sidewall of upper bundle and lower tube bundle.In the technical program, the upper forms of the corresponding shutter of upper bundle, after upper forms are opened, cold wind will directly blow to the upper bundle of radiator, now upper bundle the most easily freezes damage, on the contrary, the lower forms of the corresponding shutter of lower tube bundle, therefore should the temperature of strict control bundle and the unlatching of shutter or the situation of closing.Temperature element is fixed on the windward side sidewall of upper bundle and lower tube bundle, because outside tube bank easily produced cold under poor sealing generation leakage wind action between cooling triangle, outside is for touching at first the position of cooling air simultaneously, for the most easily freezing the position of damage, thus temperature element being fixed on the sidewall of windward side, is to approach tube bank temperature position that can strict control bundle temperature most.
Preferably, heat-conducting cream is all smeared in the junction of temperature measurement component and upper bundle and lower tube bundle.Heat-conducting cream can increase heat conductivility, has strengthened the accuracy that temperature measurement component detects.
Preferably, around surrounding's coating insulating foam layer of temperature measurement component.Insulating foam layer is mainly used in preventing the impact of environment temperature on measurement accuracy.
Preferably, temperature element is thermocouple assembly.In the technical program, thermocouple assembly is applicable to the operating temperature range of strong vibration, high pressure, high vacuum and-200 to ± 1000 DEG C, and a whole set of assembly is band cover, sealing and a half flexible small-sized probe, has perfect anti-oxidation Corrosion Protection, be applicable to severe condition of work, practical.
Preferably, controller is DCS bus control unit.In the technical program, controller is DCS bus control unit, the namely said DCS main equipment room of those skilled in the art, this controller is conducive to the extension of network of system, does not need to establish on the spot near air cooling tower operations staff on duty again, has saved human cost, automaticity is high, simple to operate, be conducive to operations staff operation, and while having properly settled winter operation, the antifreeze problem of radiator.
The beneficial effects of the utility model are: the utility model is simple in structure, by arrange temperature element on the radiator of cooling sector, effectively monitor the tube bank temperature of the radiator on cooling triangle, and the temperature parameter that temperature element detects radiator upper bundle and lower tube bundle to controller, is realized effective supervision to the radiator of cooling triangle on easily freeze position operating condition by controller by cable transmission.When radiator upper bundle temperature is lower than 6 DEG C or environment temperature during lower than-10 DEG C, controller drive apparatus is closed forms on shutter completely in addition.Now, cooling sector leaving water temperature is completely by forms control under shutter.When radiator lower tube bundle temperature is during lower than 6 DEG C, under shutter, forms protectiveness is closed, until when more than lower tube bundle temperature recovery to 6 DEG C, under shutter, forms adjustment is opened, ensure that cooling sector leaving water temperature is at required value, avoid the upper bundle of cold air and radiator or lower tube bundle easily to freeze the violent heat exchange in position by above control device, prevent that easily freezing position freezes damage, ensure the temperature of recirculated water in radiator, ensure the normal operation of indirect air cooling system, overcome the defect existing in prior art, can realize radiator is restrained to the monitoring of temperature and the segmentation On/Off to shutter, solve the problem of radiator preventing freeze in winter in indirect air cooling system, practical, system control machine tool, time saving and energy saving, extend the service life of radiator, save financial cost.
Brief description of the drawings
Fig. 1 is the temperature element distribution map of a kind of indirect dry cooling tower described in the utility model embodiment;
Fig. 2 is the structural representation of the cooling triangle of a kind of indirect dry cooling tower described in the utility model embodiment;
Fig. 3 is the On/Off control structure schematic diagram of shutter in a kind of indirect dry cooling tower described in the utility model embodiment;
Fig. 4 is the On/Off control principle drawing of shutter in a kind of indirect dry cooling tower described in the utility model embodiment;
Fig. 5 is the structural representation of the radiator of cooling triangle in a kind of indirect dry cooling tower described in the utility model embodiment;
Fig. 6 is a kind of indirect dry cooling tower described in the utility model embodiment workflow diagram in indirect air cooling system.
In figure,
1, tower body; 2, temperature element; 3, controller; 4, cooling sector; 5, radiator; 6, shutter; 7, drive apparatus; 8, executing agency; 9, gangbar; 10, upper forms; 11, lower forms; 12, upper bundle; 13, lower tube bundle; 14, cooling triangle; 15, motor; 16, gear-box; 17, bent axle; 18, water tank; 19, condenser; 20, boiler.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Embodiment 1, as Figure 1-4, a kind of indirect dry cooling tower described in the utility model embodiment, comprise tower body 1 and cooling sector 4, cooling sector is around being arranged in tower body bottom, and cooling sector comprises the cooling triangle 14 that at least one is connected to form by radiator 5 and shutter 6, shutter is connected and composed by upper forms 10, lower forms 11, upper forms and the equal connection for transmission equipment 7 of lower forms, this indirect dry cooling tower also comprises controller 3, after drive apparatus parallel connection, is connected with controller; Drive apparatus comprises executing agency 8 and the gangbar 9 being connected with executing agency, and gangbar is connected with the blade of shutter by bent axle 17.
This indirect dry cooling tower is simple in structure, cooling sector vertical surrounding is arranged in tower body bottom, and cooling sector is made up of multiple cooling triangles, tower body bottom part ring is wound with at least one sector, arrange according to user demand, cooling triangle is connected to form by two rectangle radiators and shutter in addition, the closing and open of shutter affected the ventilation and heat situation of radiator tube bank, controller is realized the effective supervision to the position operating condition that easily freezes on the radiator of cooling triangle, shutter comprises forms and lower forms, and the utility model has been realized the segmentation control of upper forms and lower forms, upper forms and the equal connection for transmission equipment of lower forms, drive apparatus is for controlling the unlatching of forms and lower forms or closing, in addition between drive apparatus for being connected with controller again after being connected in parallel, realize in the time that upper forms are closed or opened, can not impact lower forms.
The radiator that radiator is arranged with " ∧ " shape that tube bank was formed of aluminium fin through antiseptic circular aluminum pipe, cover by outer surface, this structure is called the cooling triangle of breach, and loading onto shutter in indentation, there just becomes a cooling triangle.Cooling triangle is along the contour at right angle setting of cooling tower.Cooling triangle is the device of a self-supporting, is suitable for independent installation.
When concrete use, the temperature of recirculated cooling water is controlled by cooling triangle shutter aperture.Freeze damage in order to prevent that radiator from restraining in the winter time, general by improving circulating cooling coolant-temperature gage, namely radiator leaving water temperature reaches antifreeze object.When radiator upper bundle temperature is lower than 6 DEG C or environment temperature during lower than-10 DEG C, controller drive apparatus is closed forms on shutter completely in addition.Now, cooling sector leaving water temperature is completely by forms control under shutter.When radiator lower tube bundle temperature is during lower than 6 DEG C; under shutter, forms protectiveness is closed; until lower tube bundle temperature recovery to 6 DEG C (this definite value can be determined according to practical operation situation) is when above, under shutter, forms adjustment unlatching, ensures that cooling sector leaving water temperature is at required value.Avoid the tube bank of cold air and radiator easily to freeze the violent heat exchange in position by above-mentioned control method, prevent that easily freezing position freezes damage, ensure the temperature of recirculated water in radiator, ensure the normal operation of indirect air cooling system, overcome the defect existing in prior art, can realize radiator is restrained to the monitoring of temperature and the segmentation On/Off to shutter, solve the problem of radiator preventing freeze in winter in indirect air cooling system, practical, system control machine tool, time saving and energy saving, in the service life of prolongation radiator, save financial cost.
In the technical program, the drive apparatus of the drive apparatus of the upper forms of control and the lower forms of control is for being connected in parallel respectively, and closing or open when the upper forms of execution is that lower forms are unaffected.
In the technical program, further described executing agency comprises motor 15 and the gear-box 16 being connected with motor, and motor is connected with controller, and gear-box and gangbar are in transmission connection.In the technical program, executing agency is further described, and executing agency comprises motor and gear-box, and motor starts under the control of controller, and starter receiver case, gear-box drives gangbar transmission, thereby closes the blade of shutter, easy to use, simple to operate, mechanization and intelligentized operation, saved manpower, practical.
Embodiment 2, as Figure 1-5, a kind of indirect dry cooling tower described in the utility model embodiment, comprise tower body and cooling sector, cooling sector is around being arranged in tower body bottom, and cooling sector comprises the cooling triangle that at least one is connected to form by radiator and shutter, shutter is connected and composed by upper forms, lower forms, upper forms and the equal connection for transmission equipment of lower forms, this indirect dry cooling tower also comprises controller, after drive apparatus parallel connection, is connected with controller; Drive apparatus comprises executing agency and the gangbar being connected with executing agency, and gangbar is connected with the blade of shutter by bent axle.In the technical program, further described executing agency comprises motor and the gear-box being connected with motor, and motor is connected with controller, and gear-box and gangbar are in transmission connection.
In the technical program, further fixing at least 4 temperature elements 2 on described each cooling sector, temperature element is connected with controller.
In the technical program, whether the water in turbulent condition in radiator tube bank freezes only relevant with tube bank internal surface temperature, because a cold heat sink cooling tube wall thickness is 1mm left and right, therefore can replace pipe internal surface temperature with hull-skin temperature, and as antifreeze important references parameter.Therefore on tube wall, fix temperature element, the temperature that temperature element detects is the temperature in radiator tube bank, reaches antifreeze object by the method for controlling radiator upper bundle hull-skin temperature.Temperature element should be arranged two groups in each sector, two every group, totally 4, respectively organizes temperature element and prolongs tower and be uniformly distributed for one week, four temperature elements temperature on can the tube bank of close supervision radiator.
In the technical program, on cooling sector, fix temperature element, temperature element is for measuring the temperature of radiator tube bank, and temperature element is connected with controller, and the tube bank temperature parameter of the radiator detecting is passed to controller, realize the strict monitoring to radiator tube bank temperature, controller can be restrained temperature to radiator and be shown, is the temperature of the outside tube bank of observable radiator, thereby controls between operator by the display screen of controller, simple to operate, practical.
In the technical program, further described temperature element is fixed on the radiator in cooling sector, radiator is divided into upper bundle 12 and lower tube bundle 13, upper bundle and lower tube bundle are corresponding with upper forms, lower window position respectively, and temperature element is fixed on the windward side sidewall of upper bundle and lower tube bundle.
In the technical program, the upper forms of the corresponding shutter of upper bundle, after upper forms are opened, cold wind will directly blow to the upper bundle of radiator, now upper bundle the most easily freezes damage, on the contrary, the lower forms of the corresponding shutter of lower tube bundle, therefore should the temperature of strict control bundle and the unlatching of shutter or the situation of closing.Temperature element is fixed on the windward side sidewall of upper bundle and lower tube bundle, because outside tube bank easily produced cold under poor sealing generation leakage wind action between cooling triangle, outside is for touching at first the position of cooling air simultaneously, for the most easily freezing the position of damage, thus temperature element being fixed on the sidewall of windward side, is to approach tube bank temperature position that can strict control bundle temperature most.
Cooling triangle radiator upper outer layer tube bank (contacting at first the tube bank of cooling air) outer surface is installed temperature element.When being installed, temperature element measuring point position tube-bundle fins should be cut off to about 1cm
2scope, ensures that temperature element probe can be adjacent to tube bank surface.In the technical program, heat-conducting cream is all smeared in the described temperature measurement component of choosing and the junction of upper bundle and lower tube bundle.Heat-conducting cream can increase heat conductivility, has strengthened the accuracy that temperature measurement component detects.In the technical program, preferred described surrounding's coating insulating foam layer around temperature measurement component.Insulating foam layer is mainly used in preventing the impact of environment temperature on measurement accuracy.
In the technical program, preferred described temperature element is thermocouple assembly.Thermocouple assembly is applicable to the operating temperature range of strong vibration, high pressure, high vacuum and-200 to ± 1000 DEG C, a whole set of assembly is band cover, sealing and a half flexible small-sized probe, there is perfect anti-oxidation Corrosion Protection, be applicable to severe condition of work, practical.
In the technical program, preferred described controller is DCS bus control unit.Controller is DCS bus control unit, the namely said DCS main equipment room of those skilled in the art, this controller is conducive to the extension of network of system, do not need again to establish on the spot near air cooling tower operations staff on duty, saved human cost, automaticity is high, simple to operate, is conducive to operations staff's operation, and while having properly settled winter operation, the antifreeze problem of radiator.
Be illustrated in figure 6 the fundamental diagram of indirect air cooling system, the utility model in the specific implementation, the water that is entered surface condenser 19 by boiler 20 recirculated water out passes through surface heat exchanging, the turbine discharge of cooling condenser, recirculated water after being heated is delivered to the water tank 18 of air cooling tower by water circulating pump, cooling triangle and air by air cooling heat radiator carry out surface heat exchanging, return to condenser again and remove cooling turbine discharge after recirculated water is cooling by air, have formed sealing and circulating.
The utility model arranges that temperature element effectively monitors the tube bank temperature of radiator, drive apparatus is realized the segmentation On/Off to shutter, avoid upper bundle or the lower tube bundle of cold air and radiator easily to freeze the violent heat exchange in position, prevent that radiator tube bank from freezing damage, ensure the normal operation of system, solve the problem of radiator preventing freeze in winter in air cooling tower, extended the service life of radiator.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. an indirect dry cooling tower, comprise tower body (1) and cooling sector (4), cooling sector is around being arranged in tower body bottom, cooling sector comprises the cooling triangle (14) that at least one is connected to form by radiator (5) and shutter (6), it is characterized in that: shutter is connected and composed by upper forms (10), lower forms (11), upper forms and the equal connection for transmission equipment of lower forms (7), this indirect dry cooling tower also comprises controller (3), after drive apparatus parallel connection, is connected with controller; Drive apparatus comprises executing agency (8) and the gangbar (9) being connected with executing agency, and gangbar is connected with the blade of shutter by bent axle (17).
2. indirect dry cooling tower according to claim 1, is characterized in that: executing agency comprises motor (15) and the gear-box (16) being connected with motor, and motor is connected with controller, and gear-box and gangbar are in transmission connection.
3. indirect dry cooling tower according to claim 1, is characterized in that: fixing at least 4 temperature elements (2) on each cooling sector, temperature element is connected with controller.
4. indirect dry cooling tower according to claim 3, it is characterized in that: temperature element is fixed on the radiator in cooling sector, radiator is divided into upper bundle (12) and lower tube bundle (13), upper bundle and lower tube bundle are corresponding with upper forms, lower window position respectively, and temperature element is fixed on the windward side sidewall of upper bundle and lower tube bundle.
5. indirect dry cooling tower according to claim 4, is characterized in that: heat-conducting cream is all smeared in the junction of temperature measurement component and upper bundle and lower tube bundle.
6. indirect dry cooling tower according to claim 5, is characterized in that: around surrounding's coating insulating foam layer of temperature measurement component.
7. according to the indirect dry cooling tower described in claim 3-6 any one, it is characterized in that: temperature element is thermocouple assembly.
8. indirect dry cooling tower according to claim 1, is characterized in that: controller is DCS bus control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420304334.3U CN203893695U (en) | 2014-06-10 | 2014-06-10 | Indirect air cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420304334.3U CN203893695U (en) | 2014-06-10 | 2014-06-10 | Indirect air cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893695U true CN203893695U (en) | 2014-10-22 |
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ID=51720090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420304334.3U Expired - Fee Related CN203893695U (en) | 2014-06-10 | 2014-06-10 | Indirect air cooling tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN203893695U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034180A (en) * | 2014-06-10 | 2014-09-10 | 安健雄 | Indirect air-cooled tower |
| CN109813368A (en) * | 2018-12-24 | 2019-05-28 | 陕西能源麟北发电有限公司 | A kind of steel construction indirect cool tower risk monitoring system |
-
2014
- 2014-06-10 CN CN201420304334.3U patent/CN203893695U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034180A (en) * | 2014-06-10 | 2014-09-10 | 安健雄 | Indirect air-cooled tower |
| CN104034180B (en) * | 2014-06-10 | 2016-02-10 | 安健雄 | A kind of indirect dry cooling tower |
| CN109813368A (en) * | 2018-12-24 | 2019-05-28 | 陕西能源麟北发电有限公司 | A kind of steel construction indirect cool tower risk monitoring system |
| CN109813368B (en) * | 2018-12-24 | 2021-02-02 | 陕西能源麟北发电有限公司 | Steel structure indirect cooling tower risk monitoring system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20160610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |