CN102829649A - Anti-freezing device for closed cooling tower - Google Patents
Anti-freezing device for closed cooling tower Download PDFInfo
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- CN102829649A CN102829649A CN2011101569641A CN201110156964A CN102829649A CN 102829649 A CN102829649 A CN 102829649A CN 2011101569641 A CN2011101569641 A CN 2011101569641A CN 201110156964 A CN201110156964 A CN 201110156964A CN 102829649 A CN102829649 A CN 102829649A
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Abstract
The invention discloses an anti-freezing device for a closed cooling tower. The anti-freezing device comprises a water inlet pipe of the cooling tower and a water outlet pipe of the cooling tower, wherein the water inlet pipe of the cooling tower is connected to the water inlet end of the closed cooling tower, and the water outlet end of the closed cooling tower is connected with the water outlet pipe of the cooling tower. The anti-freezing device for the closed cooling tower is characterized by comprising an anti-freezing machine device. The anti-freezing machine device comprises a water inlet pipe of the anti-freezing machine and a water outlet pipe of the anti-freezing machine, wherein the water inlet pipe of the anti-freezing machine is connected with the outlet pipe of the cooling tower, the water outlet pipe of the anti-freezing machine is connected with the water inlet pipe of the cooling tower; the water inlet pipe of the cooling tower is provided with a first valve; the water outlet pipe of the cooling tower is provided with a second valve; the water inlet pipe of the anti-freezing machine is provided with a third valve; the water outlet pipe of the anti-freezing machine is provided with a fourth valve; and a pipeline at the back of the third valve is provided with a pump and a check valve successively in water flow direction. The anti-freezing device for the closed cooling tower is convenient to operate and reliable in work, can effectively prevent a coil pipe of the closed cooling tower from frost crack in winter, and ensures a normal operation of the closed cooling tower in winter.
Description
Technical field
The present invention relates to the cooling Tower Frostbite-Preventing Technique field, specifically, relate to a kind of closed cooling tower winterized equipment.
Background technology
In the winter of cold, closed cooling tower is not when turning round, because temperature is low excessively, tends to cause cooling coil to freeze, thereby causes the inside bursting by freezing coil pipe that freezes.Cooling coil after by bursting by freezing, will cause closed cooling tower normally to move as the core component of closed cooling tower.
Current, close the cooling tower antifreezing knot and generally take following two kinds of schemes: the one, at the inner anti-icing fluid (ethylene glycol) that adds of circulation line; The 2nd, when closed cooling tower does not turn round in the winter time, discharge the inner cooling water of circulation line.
Yet, fact proved that all there is different defects in two kinds of schemes more than taking: scheme one defective is; Adding ethylene glycol can make the thermal capacity of recirculated water reduce; Cause recirculated water and inside pipe wall heat-exchange capacity to reduce, thereby influence the heat exchange effect, and generation also can pollute to environment during discharging.Scheme two defectives are, complicated operation, because the closed cooling tower complex structural designs, recirculated water is difficult for all discharging in the pipe thereby cause, because also can residual fraction recirculated water in the pipe, so in the winter time also can the bursting by freezing cooling coil; Moreover if closed cooling tower is not inactive always in the winter time, promptly closed cooling tower is in the state that intermittence is used or stops, and like this, before each closed cooling tower running, replenishes cooling water again, the practical operation very trouble of getting up.
Summary of the invention
The object of the invention is to provide a kind of closed cooling tower winterized equipment, and cooling coil can not freezed when this closed cooling tower did not turn round in winter, and coil pipe can not guaranteed that closed cooling tower normally moved in winter by bursting by freezing.
The present invention realizes through following technical scheme:
A kind of closed cooling tower winterized equipment comprises cooling tower water inlet pipe, cooling tower outlet pipe, antifreeze machine, and the cooling tower water inlet pipe is connected to the water inlet end of a closed cooling tower; The water side of this closed cooling tower connects said cooling tower outlet pipe; Said antifreeze machine comprises an antifreeze machine water inlet pipe, an antifreeze machine outlet pipe, and said antifreeze machine water inlet pipe links to each other with the cooling tower outlet pipe, and said antifreeze machine outlet pipe links to each other with the cooling tower water inlet pipe; Said cooling tower water inlet pipe is provided with first valve; Said cooling tower outlet pipe is provided with second valve, and said antifreeze machine water inlet pipe is provided with the 3rd valve, and said antifreeze machine outlet pipe is provided with the 4th valve; The back pipeline of said the 3rd valve is provided with pumping, non-return valve successively by water (flow) direction
Said antifreeze machine comprises controller, temperature-sensing device, electric heater unit, level instruction device; Water temperature in the said temperature-sensing device sensing pipeline, and the water temperature signal of sensing passed to said controller, this controller is handled the water temperature signal that receives; And compare with predefined initial heating-up temperature; When temperature reached predefined initial heating-up temperature, said controller can send a heating signal to said electric heater unit, and the heating signal that said electric heater unit receives the controller transmission heats pipeline; Water temperature in the said temperature-sensing device sensing pipeline; And the water temperature signal of sensing passed to said controller, this controller is handled the water temperature signal that receives, and compares with predefined heating stop temperature; When temperature is higher than predefined heating stop temperature; Said controller can send one to said electric heater unit and stop heating signal, and the heating signal that stops that said electric heater unit receives the controller transmission stops heating to pipeline
Water level signal in the said level instruction device sensing pipeline; And the water level signal of sensing passed to said controller; This controller is handled the water level signal that receives; When water level was lower than predefined water level value, said controller can send one to said electric heater unit and stop heating signal, and the heating signal that stops that said electric heater unit receives the controller transmission stops heating to pipeline.
Preferably, said controller is a Long-distance Control.
Preferably, on the circulation line of said antifreeze machine heat insulating coating is installed, this heat insulating coating prevents thermal loss to greatest extent.
Preferably, said antifreeze machine comprises a touch-screen, and this touch-screen is directly perceived, convenient, easy operating.
Preferably; Said antifreeze machine comprises a safety alarm device; When unusual (, pipeline in anhydrous or pumping phenomenon such as break down low excessively like temperature) appears in pipeline, said controller will send alarm signal and give said safety alarm device; The alarm lamp flicker of this safety alarm device, prompting maintenance personal on-call maintenance is handled.
Said level instruction device comprises a liquid level gauge, and this liquid level gauge is installed in the pipeline.
Preferably, said temperature-sensing device comprise one be used for the sensing water temperature platinum resistance thermometer, this thermometer is installed on the pipeline, and the water temperature signal of sensing is passed to said controller.
Preferably, said electric heater unit comprises electric heater, electrical heating control circuit, and this electric heater is installed in the pipeline, and said electrical heating control circuit receives from the heating of said controller or stops heating signal, and the work of control electric heater whether.
Operation principle of the present invention is: closed cooling tower winterized equipment of the present invention; When shutting down in the winter time; Close first valve, second valve, open the 3rd valve, the 4th valve, because the running of the inner pumping of antifreeze machine; Like this, can between antifreeze machine and closed cooling tower, form a closed circuit.Owing to be provided with temperature-sensing device, electric heater unit in the antifreeze machine, so the water in this closed circuit is hot water entirely, hot water low speed in circulation line flows, thus prevented closed cooling tower winter coil pipe freeze, by bursting by freezing.Because this antifreeze machine is provided with level instruction device, safety alarm device and remote controllers thereof again, these intelligentized designs can be guaranteed the reliable, safe, convenient of this antifreeze machine work.When needs turn round closed cooling tower once more, only need close the 3rd valve, the 4th valve, open first valve, second valve, closed cooling tower can normally move again.
Beneficial effect: a kind of closed cooling tower winterized equipment of the present invention, simple operation, reliable operation, can effectively prevent closed cooling tower winter coil pipe by bursting by freezing, guarantee that closed cooling tower can normally move in winter.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the pipeline structure sketch map of one embodiment of the invention.
Accompanying drawing mark: 10. closed cooling tower, 11. first valves, 12. second valves, 13. the 3rd valves, 14. the 4th valves; 2. thermometer, 3. pumping, 4. non-return valve, 5. electric heater, 6. liquid level gauge; A. cooling tower water inlet pipe, B. cooling tower outlet pipe, the antifreeze machine water inlet pipe of C., the antifreeze machine outlet pipe of D..
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
Embodiment:
As shown in Figure 1, comprise cooling tower water inlet pipe A, cooling tower outlet pipe B, closed cooling tower 10 among the figure, the antifreeze machine of representative in the frame of broken lines among the figure.Cooling tower water inlet pipe A is connected to the water inlet end of closed cooling tower 10, and the water side of closed cooling tower 10 connects cooling tower outlet pipe B.Antifreeze machine comprises antifreeze machine water inlet pipe C, antifreeze machine outlet pipe D, and antifreeze machine water inlet pipe C links to each other with cooling tower outlet pipe B, and antifreeze machine outlet pipe D links to each other with cooling tower water inlet pipe A.Cooling tower water inlet pipe A is provided with first valve 11; Cooling tower outlet pipe B is provided with second valve 12; Antifreeze machine water inlet pipe C is provided with the 3rd valve 13, and the back pipeline that antifreeze machine outlet pipe D is provided with the 4th valve 14, the three valves 13 is provided with pumping 3, non-return valve 4 successively by water (flow) direction.The water that pumping 3 can drive in the pipeline circulates, and non-return valve 4 can make the water in the pipeline flow to antifreeze machine outlet pipe D direction from antifreeze machine water inlet pipe C.
Antifreeze machine comprises controller, temperature-sensing device, electric heater unit, level instruction device, and controller is a Long-distance Control.Antifreeze machine comprises a touch-screen, and this touch-screen is arranged on the working site, and is directly perceived, convenient, easy operating.
Temperature-sensing device comprise one be used for the sensing water temperature platinum resistance thermometer 2, this thermometer 2 is installed on the pipeline, and the water temperature signal of sensing is passed to controller.Water temperature in the temperature-sensing device sensing pipeline; And the water temperature signal of sensing passed to said controller, this controller is handled the water temperature signal that receives, and compares with predefined initial heating-up temperature; When temperature reaches predefined initial heating-up temperature; Controller can send a heating signal to electric heater unit, and the heating signal that electric heater unit receives the controller transmission heats pipeline, the water temperature in the temperature-sensing device sensing pipeline; And the water temperature signal of sensing passed to said controller; This controller is handled the water temperature signal that receives, and compares with predefined heating stop temperature, when temperature is higher than predefined heating stop temperature; Controller can send one to said electric heater unit and stop heating signal, and the heating signal that stops that electric heater unit receives the controller transmission stops heating to pipeline.
Electric heater unit comprises electric heater 5, electrical heating control circuit, and this electric heater 5 is installed in the pipeline, and the electrical heating control circuit receives from the heating of said controller or stops heating signal, and the work of control electric heater 5 whether.
Level instruction device comprises a liquid level gauge 6, and this liquid level gauge 6 is installed in the pipeline.Water level signal in the level instruction device sensing pipeline; And the water level signal of sensing passed to controller; This controller is handled the water level signal that receives; When water level was lower than predefined water level value, controller can send one to said electric heater unit and stop heating signal, and the heating signal that stops that electric heater unit receives the controller transmission stops heating to pipeline.
On the circulation line of antifreeze machine heat insulating coating is installed, this heat insulating coating prevents thermal loss to greatest extent.
Antifreeze machine comprises a safety alarm device; When pipeline occurs unusual (low excessively like temperature; Anhydrous or pumping phenomenon such as break down in the pipeline); Said controller will send alarm signal and give said safety alarm device, the alarm lamp flicker of this safety alarm device, and prompting maintenance personal on-call maintenance is handled.
When the present invention shuts down in the winter time, close first valve 11, second valve 12, open the 3rd valve 13, the 4th valve 14, because the running of the inner pumping of antifreeze machine like this, can form a closed circuit between antifreeze machine and closed cooling tower 10.Hot water in the closed circuit can prevent closed cooling tower winter coil pipe freeze, by bursting by freezing.When needs turn round closed cooling tower 10 once more, only need close the 3rd valve 13, the 4th valve 14, open first valve 11, second valve 12, closed cooling tower 10 can normally move again.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (8)
1. a closed cooling tower winterized equipment comprises cooling tower water inlet pipe, cooling tower outlet pipe, and this cooling tower water inlet pipe is connected to the water inlet end of a closed cooling tower; The water side of this closed cooling tower connects said cooling tower outlet pipe, it is characterized in that, comprises an antifreeze machine; Said antifreeze machine comprises an antifreeze machine water inlet pipe, an antifreeze machine outlet pipe, and said antifreeze machine water inlet pipe links to each other with the cooling tower outlet pipe, and said antifreeze machine outlet pipe links to each other with the cooling tower water inlet pipe; Said cooling tower water inlet pipe is provided with first valve; Said cooling tower outlet pipe is provided with second valve, and said antifreeze machine water inlet pipe is provided with the 3rd valve, and said antifreeze machine outlet pipe is provided with the 4th valve; The back pipeline of said the 3rd valve is provided with pumping, non-return valve successively by water (flow) direction
Said antifreeze machine comprises controller, temperature-sensing device, electric heater unit, level instruction device; Water temperature in the said temperature-sensing device sensing pipeline, and the water temperature signal of sensing passed to said controller, this controller is handled the water temperature signal that receives; And compare with predefined initial heating-up temperature; When temperature reached predefined initial heating-up temperature, said controller can send a heating signal to said electric heater unit, and the heating signal that said electric heater unit receives the controller transmission heats pipeline; Water temperature in the said temperature-sensing device sensing pipeline; And the water temperature signal of sensing passed to said controller, this controller is handled the water temperature signal that receives, and compares with predefined heating stop temperature; When temperature is higher than predefined heating stop temperature; Said controller can send one to said electric heater unit and stop heating signal, and the heating signal that stops that said electric heater unit receives the controller transmission stops heating to pipeline
Water level signal in the said level instruction device sensing pipeline; And the water level signal of sensing passed to said controller; This controller is handled the water level signal that receives; When water level was lower than predefined water level value, said controller can send one to said electric heater unit and stop heating signal, and the heating signal that stops that said electric heater unit receives the controller transmission stops heating to pipeline.
2. a kind of closed cooling tower winterized equipment according to claim 1 is characterized in that said controller is a Long-distance Control.
3. a kind of closed cooling tower winterized equipment according to claim 1 is characterized in that, insulation is installed on the circulation line of said antifreeze machine covers.
4. a kind of closed cooling tower winterized equipment according to claim 1 is characterized in that said antifreeze machine comprises a touch-screen.
5. a kind of closed cooling tower winterized equipment according to claim 1; It is characterized in that said antifreeze machine comprises a safety alarm device, when pipeline occurs unusual; Said controller will send alarm signal and give said safety alarm device, the alarm lamp flicker of this safety alarm device.
6. a kind of closed cooling tower winterized equipment according to claim 1 is characterized in that said level instruction device comprises a liquid level gauge, and this liquid level gauge is installed in the pipeline.
7. a kind of closed cooling tower winterized equipment according to claim 1 is characterized in that, said temperature-sensing device comprise one be used for the sensing water temperature platinum resistance thermometer, this thermometer is installed on the pipeline, and the water temperature signal of sensing is passed to said controller.
8. a kind of closed cooling tower winterized equipment according to claim 1; It is characterized in that; Said electric heater unit comprises electric heater, electrical heating control circuit; This electric heater is installed in the pipeline, and said electrical heating control circuit receives from the heating of said controller or stops heating signal, and the work of control electric heater whether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101569641A CN102829649A (en) | 2011-06-13 | 2011-06-13 | Anti-freezing device for closed cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101569641A CN102829649A (en) | 2011-06-13 | 2011-06-13 | Anti-freezing device for closed cooling tower |
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| CN102829649A true CN102829649A (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101569641A Pending CN102829649A (en) | 2011-06-13 | 2011-06-13 | Anti-freezing device for closed cooling tower |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712332A (en) * | 2015-02-05 | 2015-06-17 | 新疆独山子天利实业总公司 | Continuous cooling high-temperature oil product sampler |
| CN106247816A (en) * | 2016-08-18 | 2016-12-21 | 北京百度网讯科技有限公司 | Cooling tower and data center cooling system for data center |
| CN107192273A (en) * | 2017-05-31 | 2017-09-22 | 广州览讯科技开发有限公司 | A kind of cooling tower shuts down winterization system |
| CN107883785A (en) * | 2016-09-29 | 2018-04-06 | 内蒙古乌海化工有限公司 | Circulating water cooling system |
| CN109269332A (en) * | 2017-07-17 | 2019-01-25 | 上海微电子装备（集团）股份有限公司 | Heat-exchange device and its heat change method and vapor deposition apparatus |
| CN109883219A (en) * | 2019-02-02 | 2019-06-14 | 北京百度网讯科技有限公司 | Defroster and cooling tower for cooling tower |
| CN114018071A (en) * | 2021-12-02 | 2022-02-08 | 安徽江淮汽车集团股份有限公司 | Anti-freezing device of closed cooling tower |
| CN114440657A (en) * | 2022-01-27 | 2022-05-06 | 江苏格陵兰传热科技有限公司 | Anti-freezing module of closed cooling tower |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712332A (en) * | 2015-02-05 | 2015-06-17 | 新疆独山子天利实业总公司 | Continuous cooling high-temperature oil product sampler |
| CN106247816A (en) * | 2016-08-18 | 2016-12-21 | 北京百度网讯科技有限公司 | Cooling tower and data center cooling system for data center |
| CN106247816B (en) * | 2016-08-18 | 2018-09-07 | 北京百度网讯科技有限公司 | Cooling tower and data center cooling system for data center |
| CN107883785A (en) * | 2016-09-29 | 2018-04-06 | 内蒙古乌海化工有限公司 | Circulating water cooling system |
| CN107192273A (en) * | 2017-05-31 | 2017-09-22 | 广州览讯科技开发有限公司 | A kind of cooling tower shuts down winterization system |
| CN109269332A (en) * | 2017-07-17 | 2019-01-25 | 上海微电子装备（集团）股份有限公司 | Heat-exchange device and its heat change method and vapor deposition apparatus |
| CN109883219A (en) * | 2019-02-02 | 2019-06-14 | 北京百度网讯科技有限公司 | Defroster and cooling tower for cooling tower |
| CN114018071A (en) * | 2021-12-02 | 2022-02-08 | 安徽江淮汽车集团股份有限公司 | Anti-freezing device of closed cooling tower |
| CN114440657A (en) * | 2022-01-27 | 2022-05-06 | 江苏格陵兰传热科技有限公司 | Anti-freezing module of closed cooling tower |
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Application publication date: 20121219 |