CN111271985A - Water-saving demisting system and method for cooling tower - Google Patents
Water-saving demisting system and method for cooling tower Download PDFInfo
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- CN111271985A CN111271985A CN202010210279.1A CN202010210279A CN111271985A CN 111271985 A CN111271985 A CN 111271985A CN 202010210279 A CN202010210279 A CN 202010210279A CN 111271985 A CN111271985 A CN 111271985A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F2025/005—Liquid collection; Liquid treatment; Liquid recirculation; Addition of make-up liquid
Abstract
The invention relates to a system and a method for water-saving demisting of a cooling tower, belonging to the field of industrial water saving. The invention relates to a water-saving demisting system for a cooling tower, which comprises a tower body, a high-voltage ionization device, a high-voltage electrostatic device and a water collector, wherein saturated wet air in the tower is subjected to positive polarity ionization and negative polarity ionization simultaneously, so that water vapor molecules are respectively charged with positive charges and negative charges to form ionic states, then the ionic water vapor molecules enter the same high-voltage electric field, the ionic water vapor molecules move in the high-voltage electric field in a staggered manner to be mutually attracted and condensed into fine fog drops, and the fog drops are further agglomerated as condensation nuclei to be condensed into water flow, so that the moisture content of the wet air is reduced, the purpose of saving water and demisting the cooling tower is realized, cooling water is recovered while demisting, and the water-saving demisting system has the advantages of wide application range.
Description
Technical Field
The invention relates to a system and a method for water-saving demisting of a cooling tower, belonging to the field of industrial water saving.
Background
In the prior art, the cooling tower mainly realizes cooling of circulating water in a form of latent heat of evaporation in the processes of heat transfer and mass transfer with air through the circulating water flowing from top to bottom, and simultaneously increases the moisture content of the air. Because the temperature outside the tower is low, saturated wet air in the tower is condensed and condensed after being discharged out of the cooling tower, and water vapor is discharged into the atmospheric environment in the form of fog drops, thereby causing the waste of circulating water. The water consumption lost in the form of evaporation is evaporation loss, accounts for 1.2-1.5% of the total amount of circulating water, accounts for 30-50% of the total amount of water consumed by a power plant, and is the largest water consumption index of the power plant.
According to the evaporation loss generation process, because the environmental temperature cannot be changed, the conventional water-saving and fog-dispersing way of the cooling tower at present mainly changes the thermodynamic state of saturated wet air in the tower, and the specific technologies comprise a heating type, a dry-wet mixing type and a condensation type. The heating type is that the temperature of the wet air out of the tower is increased by heating, and the aim of demisting outside the tower is achieved by reducing the relative humidity, so that the method does not reduce the absolute water content of the wet air, only eliminates visual pollution and does not have the function of water saving; the dry-wet mixing type is that the temperature of air entering the tower is increased to form dry and hot air, so that the state line of the mixed wet air is below the saturated state line, and further the tower white fog is eliminated, and the method is similar to the heating type and has no water-saving function; the condensation method is characterized in that saturated wet air in the tower is cooled and condensed by additionally arranging heat exchange equipment, condensed water is collected by utilizing an original water collector, and a condensing device and a water collecting device are additionally arranged at the outlet of the cooling tower.
Based on the principle of electric dust removal, the electric defogging device has wider application in the aspect of defogging, but the electric defogging technology can only collect fog drop particles and has no dehumidification effect. Accordingly, the chinese patent of invention, publication No. CN108895857A, discloses an electric defogging device installed at the outlet of a cooling tower, wherein the bottom of the electric defogger and the top of the cooling tower are provided with airflow channels, and it is expected that the saturated humid air is naturally cooled by the dry and cold air outside the tower to separate out water mist, and then the water mist is collected by the electric defogger to achieve the purpose of water saving and defogging. However, considering the fixing of the electric demister and the bearing of the cooling tower pair, the height of the air flow channel between the electric demister and the cooling tower is very narrow, and the effect of separating out the white mist by natural cooling is poor, so that the water-receiving and demisting effect of the electric demister is not ideal.
Disclosure of Invention
The invention aims to solve the problems in the background, and provides a water-saving demisting system and a water-saving demisting method for a cooling tower, which can be applied to the water-saving demisting projects of most domestic cooling towers at present, have very wide application ranges for the air volume, temperature and moisture content of saturated wet air in the cooling tower, can continuously and stably run for a long time, basically does not increase the system resistance, and has high water-saving efficiency, remarkable demisting effect and safe and reliable running.
The purpose of the invention is realized as follows: a water-saving demisting system for a cooling tower comprises a tower body, a high-voltage ionization device, a high-voltage electrostatic device and a water collector;
the high-voltage ionization device and the high-voltage electrostatic device are both vertically arranged in the tower body, the high-voltage ionization device is arranged below the high-voltage electrostatic device, and saturated wet air sequentially passes through the high-voltage ionization device and the high-voltage electrostatic device from bottom to top;
the high-pressure ionization device is cylindrical and is positioned above the middle part in the tower body;
the high-voltage ionization device comprises an ionization device shell, and a positive polarity ionization device and a negative polarity ionization device which are positioned in the ionization device shell;
the positive polarity ionization device is formed by driving a plurality of ionization units by a positive polarity high-voltage direct current power supply;
the negative polarity ionization device is formed by driving a plurality of ionization units by a negative polarity high-voltage direct current power supply.
The ionization unit comprises an ionization unit line electrode and an ionization unit plate electrode, and all the ionization unit plate electrodes are connected with the ionization device shell and grounded;
the left half part of the ionization unit line electrode is connected with the high-voltage end of the positive polarity high-voltage direct-current power supply, and the right half part of the ionization unit line electrode is connected with the high-voltage end of the negative polarity high-voltage direct-current power supply;
and the low-voltage ends of the positive polarity high-voltage direct current power supply and the negative polarity high-voltage direct current power supply are respectively connected with the ionization device shell.
The high-voltage electrostatic device is cylindrical and is arranged above the high-voltage ionization device and close to the outlet of the tower body;
the high-voltage electrostatic device comprises an electrostatic device shell;
the high-voltage electrostatic device is composed of a plurality of electrostatic units, and the plurality of electrostatic units are driven by a high-voltage direct-current power supply or a high-voltage alternating-current power supply.
The electrostatic unit comprises an electrostatic unit line electrode and an electrostatic unit plate electrode;
all the electrostatic unit line electrodes are connected with the high-voltage end of a high-voltage direct-current power supply or a high-voltage alternating-current power supply;
all the electrostatic unit plate electrodes are connected with the electrostatic device shell and are grounded;
the electrostatic device shell is connected with the low-voltage end of the high-voltage direct-current power supply or the high-voltage alternating-current power supply.
The water collector is a semicircular groove and is arranged under a plate electrode of the high-voltage electrostatic device, and two ends of the water collector are connected with the electrostatic device shell.
A water-saving demisting method for a cooling tower comprises the following steps:
the method comprises the following steps: carrying out positive polarity ionization and negative polarity ionization on saturated wet air in the tower at the same time, so that water vapor molecules are respectively charged with positive charges and negative charges to form an ionic state;
step two: entering the same high-voltage electric field, wherein the water vapor molecules in the ionic state are mutually attracted in the high-voltage electric field in a staggered motion manner to be condensed into fine fog drops, and the fog drops are further agglomerated as condensation nuclei to be condensed into water flow;
step three: the water flow is introduced into the tower by means of a water collecting device so as to participate in circulation.
And (3) dividing the saturated wet air in the step one into two parts, respectively and simultaneously carrying out positive polarity ionization and negative polarity ionization, and then simultaneously carrying out the process of the step two.
In the first step, positive polarity ionization is realized by adopting a positive polarity high-voltage direct-current power supply in a corona discharge mode, and negative polarity ionization is realized by adopting a negative polarity high-voltage direct-current power supply in a corona discharge mode.
The water collecting device in the third step is a water collector.
Compared with the prior art, the invention has the following advantages:
1. the ionization device is arranged in a hollow area in the tower, and the original equipment layout of the cooling tower is not required to be changed;
2. the high-voltage electrostatic device is directly arranged on the outlet layer of the cooling tower, so that the construction is easy;
3. the ionization device and the high-voltage electrostatic device are both of hollow structures, and the system resistance is not increased;
4. the ionization device generates a large amount of high-activity free radicals, pollutants, bacteria and algae in saturated wet air can be treated and inactivated, and the purity of circulating water is improved;
5. the water collection efficiency is more than 10 times higher than that of a single-area electric demister, and the water collection efficiency is high;
6. the device can continuously operate for a long time, the discharge output voltage is low, and the operation is safe and stable;
7. the application range of the wet air flow, the temperature and the humidity is wide.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of a water-saving demisting system for a cooling tower according to the present invention.
Fig. 2 is a schematic top view of a high-pressure ionization device in embodiment 1 of a system for water-saving demisting of a cooling tower according to the present invention.
Fig. 3 is a schematic top view of a high-voltage electrostatic device of embodiment 1 of a water-saving demisting system for a cooling tower according to the present invention.
Fig. 4 is a schematic side view of a single water collector in embodiment 1 of the water-saving demisting system for the cooling tower.
Fig. 5 is a schematic top view of a high-pressure ionization device of embodiment 2 of a water-saving demisting system for a cooling tower according to the present invention.
Fig. 6 is a schematic top view of a high-voltage electrostatic device of embodiment 3 of a system for water-saving and demisting a cooling tower according to the present invention.
Wherein:
1. a tower body; 2. 2.1 parts of a high-voltage ionization device, 2.1 parts of ionization unit line electrodes, 2.2 parts of ionization units, 2.3 parts of ionization unit plate electrodes, 2.4 parts of positive polarity high-voltage direct-current power supply, 2.5 parts of negative polarity high-voltage direct-current power supply and 2.6 parts of an ionization device shell; 3. 3.1 parts of a high-voltage electrostatic device, 3.1 parts of electrostatic unit line electrodes, 3.2 parts of electrostatic units, 3.3 parts of electrostatic unit plate electrodes, 3.4 parts of a high-voltage direct-current power supply, 3.5 parts of an electrostatic device shell, 3.6 parts of high-voltage plate electrodes, 3.7 parts of a high-voltage alternating-current power supply; 4. a water collector.
Detailed Description
The invention is described below with reference to the accompanying drawings and specific embodiments:
example 1:
as shown in fig. 1 to 4, a water-saving demisting system for a cooling tower comprises a tower body 1, a high-voltage ionization device 2, a high-voltage electrostatic device 3 and a water collector 4;
the high-voltage ionization device 2 and the high-voltage electrostatic device 3 are both vertically arranged in the tower body 1, the high-voltage ionization device 2 is arranged below the high-voltage electrostatic device 3, and saturated wet air sequentially passes through the high-voltage ionization device 2 and the high-voltage electrostatic device 3 from bottom to top;
the high-voltage ionization device 2 is cylindrical and is positioned above the middle part in the tower body 1;
the high-voltage ionization device 2 comprises an ionization device shell 2.6 and a positive polarity ionization device and a negative polarity ionization device which are positioned in the ionization device shell;
the positive polarity ionization device is formed by driving a plurality of ionization units 2.2 by a positive polarity high-voltage direct current power supply 2.4;
the negative polarity ionization device is formed by driving a plurality of ionization units 2.2 by a negative polarity high-voltage direct current power supply 2.5;
the ionization unit 2.2 comprises an ionization unit line electrode 2.1 and ionization unit plate electrodes 2.3, and all the ionization unit plate electrodes 2.3 are connected with the ionization device shell 2.6 and grounded;
the left half part of the ionization unit line electrode 2.1 is connected with the high-voltage end of a positive polarity high-voltage direct current power supply 2.4, and the right half part is connected with the high-voltage end of a negative polarity high-voltage direct current power supply 2.5;
the low-voltage ends of the positive polarity high-voltage direct current power supply 2.4 and the negative polarity high-voltage direct current power supply 2.5 are respectively connected with the ionization device shell 2.6.
In the embodiment, the ionization device shell 2.6 is made of carbon steel metal; the ionization unit line electrode 2.1 and the ionization unit plate electrode 2.3 are made of stainless steel metal.
In this embodiment, the ionization unit 2.2 may be of the above-mentioned line-plate type structure, and may also be of the line-honeycomb type structure;
when the ionization unit 2.2 is a line-honeycomb structure, it comprises an ionization unit line electrode and a honeycomb electrode, the ionization unit line electrode is connected with the high-voltage end of the high-voltage direct-current power supply, and the honeycomb electrode is connected with the low-voltage end of the high-voltage direct-current power supply and is grounded.
In the embodiment, the positive-polarity ionization device and the negative-polarity ionization device are arranged in parallel, and saturated wet air flows through the positive-polarity ionization device and the negative-polarity ionization device from bottom to top to form wet air in an ionic state.
In this embodiment, in order to improve the charge amount and the ionization degree of the ionic wet air, preferably, the output voltage of the positive polarity high voltage direct current power supply is greater than or equal to 35kV, and the output current is greater than or equal to 200 mA; the output voltage of the negative polarity high-voltage direct-current power supply is more than or equal to 40kV, and the output current is more than or equal to 200 mA; the output frequency of the positive polarity and negative polarity high-voltage direct current power supply is 50 Hz-300 Hz; under the condition of keeping the lowest output current to operate, the required output voltage is lowest, the power consumption is saved, the insulation requirement between high-voltage electrodes and low-voltage electrodes is reduced, the safety distance is shortened, and the space utilization rate in the tower is improved.
In the present embodiment, the high voltage electrostatic device 3 is cylindrical and is disposed above the high voltage ionization device 2 and near the outlet of the tower body 1;
the high-voltage electrostatic device 3 comprises an electrostatic device housing 3.5.
In the present embodiment, the high voltage electrostatic device 3 is composed of a plurality of electrostatic units 3.2, and the plurality of electrostatic units 3.2 are driven by a high voltage dc power supply 3.4.
The electrostatic unit 3.2 comprises an electrostatic unit line electrode 3.1 and an electrostatic unit plate electrode 3.3;
all the electrostatic unit line electrodes 3.1 are connected with the high-voltage end of a high-voltage direct-current power supply 3.4;
all the electrostatic unit plate electrodes 3.3 are connected with the electrostatic device shell 3.5 and are grounded;
the electrostatic device housing 3.5 is connected to the low voltage side of the high voltage dc power supply 3.4.
In this embodiment, the electrostatic device housing 3.5 is made of carbon steel metal; the electrostatic unit line electrode 3.1 and the electrostatic unit plate electrode 3.3 are made of stainless steel metal.
In the present embodiment, the electrostatic unit 3.2 is of a line-and-plate type structure.
In the embodiment, in order to enhance the strength and collision probability of the staggered movement of ionic water molecules in a high-voltage electric field, when the electrostatic unit of the high-voltage electrostatic device adopts a line-plate structure, the output voltage of the direct-current power supply is more than or equal to 40kV, the output current is less than or equal to 200mA, the output voltage of the alternating-current power supply is more than or equal to 30kV, and the output current is less than or equal to 200 mA;
when the high-voltage device electrostatic unit adopts a plate-plate structure, the output voltage of the direct-current power supply is more than or equal to 50kV, the output current is less than or equal to 1mA, the output voltage of the alternating-current power supply is more than or equal to 45kV, and the output current is less than or equal to 1 mA;
the required output voltage is minimum under the condition of keeping the maximum output current, the power consumption is saved, the insulation requirement between high and low voltage electrodes is reduced, the safety distance is shortened, and the utilization rate of the space outside the tower is improved.
In this embodiment, the water collector 4 is a semicircular groove, and is installed right below the electrostatic unit plate electrode 3.3 of the high-voltage electrostatic device 3, and two ends of the water collector are connected with the electrostatic device housing 3.5.
In the embodiment, the water-saving demisting system for the cooling tower, provided by the invention, is characterized in that saturated wet air in the tower partially flows through the positive-polarity ionization device, and partially flows through the negative-polarity ionization device to respectively form positive-polarity and negative-polarity ionic wet air, and then flows through the same high-voltage electrostatic device 3 together to perform staggered motion under the action of a high-voltage electrostatic field, water molecules with different charges are condensed into fine fog drop particles, and meanwhile, the water molecules are further agglomerated under the action of the fog drops as condensation nuclei to be condensed into water flow, and the water flow falls into the water collector 4 under the action of gravity along a plate electrode to complete water-saving demi.
In this embodiment, the method for water-saving demisting of the cooling tower of the present invention comprises:
the system is started, saturated wet air in the tower body 1 firstly flows through positive polarity ionization units 2.2 and negative polarity ionization units 2.2 in the high-voltage ionization device 2 from bottom to top respectively, through positive polarity corona discharge and negative polarity corona discharge, the ionization units 2.2 are filled with a large amount of positive charges and negative charges, water molecules in the wet air capture the positive charges and the negative charges, and the wet air in an ionic state is formed by the self-charged positive charges and negative charges; then the water flows through the high-voltage electrostatic device 3, the electrostatic unit 3.2 forms a high-voltage electrostatic field in a single direction under the drive of the same high-voltage direct-current power supply 3.4, so that the moving directions of water molecules carrying positive charges and negative charges are different, the water molecules carrying different charges are mutually attracted and condensed into fine fog drops by the staggered movement of the ionic wet air under the action of the high-voltage electrostatic field, meanwhile, the fog drops are further agglomerated and condensed into large liquid drops by taking the fog drops as condensation nuclei, and the water flows are converged on an electrostatic unit plate electrode 3.3 of the high-voltage electrostatic device 3 and fall into the water collector 4; the whole process not only can change the vapor in the saturated humid air in the cooling tower into fog drops, but also can recover the evaporation loss of the cooling tower while demisting, thereby greatly reducing the evaporation water consumption, eliminating the visual pollution of the white water mist at the outlet of the cooling tower and simultaneously playing a certain purification role on the circulating water.
Example 2:
as shown in fig. 5, the embodiment 2 of the present invention is different from the embodiment 1, in which the positive and negative ionization units 2.2 of the high voltage ionization device 2 are arranged in a staggered manner, and after saturated humid air in the cooling tower passes through the high voltage ionization device 2, the horizontal distance between the humid air in the positive polarity ion state and the humid air in the negative polarity ion state is very close, and the humid air in the positive polarity ion state and the humid air in the negative polarity ion state can be mutually attracted and condensed into fog drops before entering the high voltage electrostatic device 3, so that the water condensation effect of the humid air in the ion state in the high voltage electrostatic device 3 is greatly improved;
other technical features and technical methods of the embodiment 2 are the same as those of the embodiment 1.
Example 3:
as shown in fig. 6, the embodiment 3 of the present invention is different from the embodiment 1, and the electrostatic unit 3.2 of the high-voltage electrostatic device 3 adopts a plate-plate type structure;
when the electrostatic unit 3.2 is in a plate-plate structure, the electrostatic unit comprises a high-voltage plate electrode and a plate electrode, wherein the high-voltage plate electrode is connected with the high-voltage end of a high-voltage power supply, and the plate electrode is connected with the low-voltage end of the high-voltage power supply and is grounded;
the high-voltage power supply adopts a high-voltage alternating current power supply 3.7, and the high-voltage end of the high-voltage power supply is connected with a high-voltage plate electrode 3.6.
In this embodiment, the electric field distribution of the plate-plate electrostatic unit 3.2 is more uniform, and the directions of the high-voltage electric fields are changed alternately at different times, so that the staggered movement of water molecules with different charged polarities in the ionic wet air is greatly enhanced, the collision probability among the water molecules with different polarities is further enhanced, and the water coagulation efficiency of the ionic wet air is remarkably improved.
Other technical features and technical methods of the embodiment 3 are the same as those of the embodiment 1.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a system for cooling tower water-saving defogging, includes tower body (1), its characterized in that: the device also comprises a high-voltage ionization device (2), a high-voltage electrostatic device (3) and a water collector (4);
high-voltage ionization device (2) and high-voltage electrostatic device (3) are vertical the inside of arranging in tower body (1), high-voltage ionization device (2) set up the below at high-voltage electrostatic device (3), and saturated humid air passes through high-voltage ionization device (2) and high-voltage electrostatic device (3) from bottom to top in proper order.
2. The system for saving water and demisting for the cooling tower as claimed in claim 1, wherein: the high-pressure ionization device (2) is cylindrical and is positioned above the middle part in the tower body (1);
the high-voltage ionization device (2) comprises an ionization device shell (2.6) and a positive-polarity ionization device and a negative-polarity ionization device which are positioned in the ionization device shell;
the positive polarity ionization device is formed by driving a plurality of ionization units (2.2) by a positive polarity high-voltage direct current power supply (2.4);
the negative polarity ionization device is formed by driving a plurality of ionization units (2.2) by a negative polarity high-voltage direct current power supply (2.5).
3. The system for saving water and demisting for the cooling tower as claimed in claim 2, wherein: the ionization unit (2.2) comprises an ionization unit line electrode (2.1) and ionization unit plate electrodes (2.3), and all the ionization unit plate electrodes (2.3) are connected with the ionization device shell (2.6) and grounded;
the left half part of the ionization unit line electrode (2.1) is connected with the high-voltage end of a positive polarity high-voltage direct current power supply (2.4), and the right half part of the ionization unit line electrode is connected with the high-voltage end of a negative polarity high-voltage direct current power supply (2.5);
the low-voltage ends of the positive polarity high-voltage direct current power supply (2.4) and the negative polarity high-voltage direct current power supply (2.5) are respectively connected with the ionization device shell (2.6).
4. The system for saving water and demisting for the cooling tower as claimed in claim 1, wherein: the high-voltage electrostatic device (3) is cylindrical and is arranged above the high-voltage ionization device (2) and close to the outlet of the tower body (1);
the high-voltage electrostatic device (3) comprises an electrostatic device housing (3.5);
the high-voltage electrostatic device (3) is composed of a plurality of electrostatic units (3.2), and the plurality of electrostatic units (3.2) are driven by a high-voltage direct-current power supply (3.4) or a high-voltage alternating-current power supply (3.7).
5. The system for saving water and demisting a cooling tower as claimed in claim 4, wherein: the electrostatic unit (3.2) comprises an electrostatic unit line electrode (3.1) and an electrostatic unit plate electrode (3.3);
all the electrostatic unit line electrodes (3.1) are connected with the high-voltage end of a high-voltage direct-current power supply (3.4) or a high-voltage alternating-current power supply (3.7);
all the electrostatic unit plate electrodes (3.3) are connected with the electrostatic device shell (3.5) and are grounded;
the electrostatic device shell (3.5) is connected with the low-voltage end of a high-voltage direct-current power supply (3.4) or a high-voltage alternating-current power supply (3.7).
6. The system for saving water and demisting for the cooling tower as claimed in claim 1, wherein: the water collector (4) is a semicircular groove and is arranged right below a plate electrode (3.3) of the high-voltage electrostatic device (3), and two ends of the water collector are connected with the electrostatic device shell (3.5).
7. A water-saving demisting method for a cooling tower is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: carrying out positive polarity ionization and negative polarity ionization on saturated wet air in the tower at the same time, so that water vapor molecules are respectively charged with positive charges and negative charges to form an ionic state;
step two: entering the same high-voltage electric field, wherein the water vapor molecules in the ionic state are mutually attracted in the high-voltage electric field in a staggered motion manner to be condensed into fine fog drops, and the fog drops are further agglomerated as condensation nuclei to be condensed into water flow;
step three: the water flow is introduced into the tower by means of a water collecting device so as to participate in circulation.
8. The method for saving water and demisting a cooling tower according to claim 7, wherein: and (3) dividing the saturated wet air in the step one into two parts, respectively and simultaneously carrying out positive polarity ionization and negative polarity ionization, and then simultaneously carrying out the process of the step two.
9. The method for saving water and demisting a cooling tower according to claim 7, wherein: in the first step, positive polarity ionization is realized by adopting a positive polarity high-voltage direct-current power supply in a corona discharge mode, and negative polarity ionization is realized by adopting a negative polarity high-voltage direct-current power supply in a corona discharge mode.
10. The method for saving water and demisting a cooling tower according to claim 7, wherein: the water collecting device in the third step is a water collector (4).
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| CN202010210279.1A CN111271985A (en) | 2020-03-24 | 2020-03-24 | Water-saving demisting system and method for cooling tower |
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| CN202010210279.1A CN111271985A (en) | 2020-03-24 | 2020-03-24 | Water-saving demisting system and method for cooling tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113758304A (en) * | 2021-09-15 | 2021-12-07 | 安徽泛泽环境科技有限公司 | Plasma corona electric field unit, device and system for cooling tower fog dissipation and water saving and application thereof |
| CN113959239A (en) * | 2021-09-29 | 2022-01-21 | 山东蓝想环境科技股份有限公司 | Active demisting water-saving method and device and application thereof |
| CN114001565A (en) * | 2021-09-10 | 2022-02-01 | 西安交通大学 | Electrostatic water-collecting cooling tower |
| KR102521341B1 (en) * | 2022-07-11 | 2023-04-13 | 이대식 | Water saving cooling tower system with vapor decrease function |
| KR102521340B1 (en) * | 2022-07-11 | 2023-04-13 | 이대식 | Air and moist mixing apparatus for cooling tower |
| KR102521339B1 (en) * | 2022-07-11 | 2023-04-13 | 이대식 | Cooling tower system with moist decrease device |
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2020
- 2020-03-24 CN CN202010210279.1A patent/CN111271985A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114001565A (en) * | 2021-09-10 | 2022-02-01 | 西安交通大学 | Electrostatic water-collecting cooling tower |
| CN113758304A (en) * | 2021-09-15 | 2021-12-07 | 安徽泛泽环境科技有限公司 | Plasma corona electric field unit, device and system for cooling tower fog dissipation and water saving and application thereof |
| CN113758304B (en) * | 2021-09-15 | 2022-04-12 | 安徽泛泽环境科技有限公司 | Plasma corona electric field system for cooling tower fog dissipation and water saving and application thereof |
| CN113959239A (en) * | 2021-09-29 | 2022-01-21 | 山东蓝想环境科技股份有限公司 | Active demisting water-saving method and device and application thereof |
| CN113959239B (en) * | 2021-09-29 | 2024-01-30 | 山东蓝想环境科技股份有限公司 | Active demisting water-saving method and device and application thereof |
| KR102521341B1 (en) * | 2022-07-11 | 2023-04-13 | 이대식 | Water saving cooling tower system with vapor decrease function |
| KR102521340B1 (en) * | 2022-07-11 | 2023-04-13 | 이대식 | Air and moist mixing apparatus for cooling tower |
| KR102521339B1 (en) * | 2022-07-11 | 2023-04-13 | 이대식 | Cooling tower system with moist decrease device |
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