CN111998695A - Fog-dispersing water-saving evaporative condenser - Google Patents
Fog-dispersing water-saving evaporative condenser Download PDFInfo
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- CN111998695A CN111998695A CN202011013990.4A CN202011013990A CN111998695A CN 111998695 A CN111998695 A CN 111998695A CN 202011013990 A CN202011013990 A CN 202011013990A CN 111998695 A CN111998695 A CN 111998695A
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- water
- heat exchange
- fan
- shell
- exchange tube
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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
- F28C1/16—Arrangements for preventing condensation, precipitation or mist formation, outside the cooler
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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
- F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
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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
- F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a fog-dispersing water-saving evaporative condenser, which comprises a shell, a water tank arranged at the bottom of the shell, a heat exchange pipe arranged at the middle upper part of the shell, a spraying device arranged right above the heat exchange pipe, a filler device arranged right below the spraying device and a fan arranged on the shell, wherein the spraying device is connected with the water tank through a water pump and a pipeline; the air suction opening of the fan is positioned at the rear side of the heat exchange tube beam of the shell, and the upper air inlet and the lower air inlet of the shell are respectively arranged at the upper part and the lower part of the shell; a fog dispersal device is arranged at the lower part of the shell and outside the packing device, and is connected with the heat exchange tube bundle in series; the rear side of the heat exchange tube bundle is provided with a partition board which separates the heat exchange tube bundle from a suction opening of the fan, and an upper water collector is arranged below the partition board. The invention has the advantages of reducing the evaporation loss of spray water, reducing the white fog formed by the condensation at the outlet of the fan in winter, reducing the water floating rate of the evaporative condenser, reducing water vapor and realizing environmental protection and energy conservation.
Description
Technical Field
The invention relates to the technical field of cooling equipment, in particular to a fog-dispersing water-saving evaporative condenser.
Background
The fog-eliminating water-saving evaporative condenser (cooler) is a fog-eliminating water-saving device developed by combining the advantages of latent heat of vaporization of water and sensible heat exchange of air. The device is applied to the processes of chemical industry, electric power, petrifaction, coalification, refrigeration, medicine, air conditioning and the like which need to be condensed or cooled, can reduce the evaporation loss of spray water, reduce the water floating rate of the evaporative condenser (cooler), and reduce the white fog of condensation products when steam discharged from the fan outlet of the evaporative condenser (cooler) meets in winter.
In the operation process of a traditional evaporative condenser (cooler), after spray water in the evaporative condenser (cooler) exchanges heat with a heat exchange tube, the water absorbs heat in the heat exchange tube, and generates saturated damp and hot air after evaporation and vaporization, after the damp and hot air is mixed with cold air, the mixture is cooled and condensed to form a white fog group containing a plurality of tiny liquid particle groups, and the fog group drifts to peripheral corrosion equipment, so that the surrounding road surface is wet and slippery, and the normal inspection of workers is influenced; the conventional evaporative condenser (cooler) also has a disadvantage of large evaporation loss. With the improvement of environmental protection requirements, the water saving and fog dispersal of the fog dispersal water saving type evaporative condenser (cooler) is more and more important.
Disclosure of Invention
The invention provides a fog-eliminating water-saving evaporative condenser, which can reduce the evaporation loss of spray water, reduce white fog formed by condensation at the outlet of a fan in winter, reduce the water floating rate of an evaporative condenser (cooler), reduce water vapor discharged from the outlet of the fan of the evaporative condenser (cooler) in winter and realize environmental protection and energy conservation.
The specific technical scheme provided by the invention is as follows:
a fog-eliminating water-saving evaporative condenser comprises a shell, a water tank arranged at the bottom of the shell, a heat exchange pipe arranged at the middle upper part of the shell, a spraying device arranged right above the heat exchange pipe, a filler device arranged right below the spraying device and a fan arranged on the shell, wherein the spraying device is connected with the water tank through a water pump and a pipeline; the air suction opening of the fan is positioned at the rear side of the heat exchange tube beam of the shell, and the upper air inlet and the lower air inlet of the shell are respectively arranged at the upper part and the lower part of the shell;
a fog dispersal device is arranged at the lower part of the shell and outside the packing device, and is connected with the heat exchange tube bundle in series; if the cooling medium is liquid, the fog dispersal device is a cooling medium inlet end; if the cooling medium is gas, the heat exchange tube bundle is the inlet end of the cooling medium;
the rear side of the heat exchange tube bundle is provided with a partition board which separates the heat exchange tube bundle from a suction opening of the fan, and an upper water collector is arranged below the partition board.
In the scheme, condensation is realized mainly by combining latent heat of vaporization of water and sensible heat of air; namely, the spraying heat exchange tube bundle heat exchange and the fog dispersal device are realized through air heat exchange. Liquid condensed from the gas flows from top to bottom by gravity, so that the gas is condensed and enters the heat exchange tube bundle and then enters the fog dispersal device. The liquid cooling fog dispersal module liquid flows by the pressure of the water pump, flows from bottom to top, can be precooled by the fog dispersal module before entering the heat exchanger, saves water resources, and therefore the liquid cooling medium enters the heat exchanger after entering the fog dispersal module.
Optionally, the partition plate and the upper water collector separate an airflow channel between the suction port of the fan and the heat exchange tube bundle, and the airflow is discharged into the atmosphere from the side of the heat exchange tube bundle through the upper water collector under the action of the fan.
Optionally, a lower water collector is obliquely arranged on the inner side of the filling device, and the upper water collector and the lower water collector are connected through a partition plate; the air flow of the lower air inlet traverses the filler device and is discharged into the atmosphere by the fan after passing through the lower water collector. In this technical scheme, prevent to drench the filler device and go up big water droplet and pass through fan draft and take out equipment, big water droplet collects down through receiving the hydrophone.
Optionally, the heat exchange tube bundle is composed of a serpentine coil or a straight tube, and the heat exchange tube bundle is a round tube or a special-shaped tube; the fog dispersal device is a finned tube combination, and the finned tube is a wound fin, a rolled fin or a penetrating fin.
Optionally, the packing device is a PVC packing cooling tower for cooling the spray water.
The invention has the beneficial effects that: by combining latent heat of vaporization of water with sensible heat of air, evaporation loss of spray water is reduced, white fog formed by condensation at the outlet of a fan in winter is reduced, the water floating rate of an evaporative condenser (cooler) is reduced, water vapor discharged from the outlet of the fan of the evaporative condenser (cooler) in winter is reduced, and real environmental protection and energy conservation are realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic front view of an embodiment of the present invention;
FIG. 2 is a schematic side view of an embodiment of the present invention;
fig. 3 is a schematic view of an air flow structure according to an embodiment of the present invention.
In the figure, 1, a housing; 2. a fan; 3. a heat exchange tube bundle; 4. a fog dispersal device; 5. a spraying device; 6. a water tank; 7. a water pump; 8. an upper water collector; 9. a lower water collector; 10. a partition plate; 11. a packing device; 12. a connecting pipe; 13. an upper inlet; 14. and a lower air inlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a fog-dispersal water-saving type evaporative condenser comprises a shell 1, a water tank 6 arranged at the bottom of the shell 1, and a spraying device 5 arranged right above a heat exchange tube bundle 3, wherein the spraying device 5 is connected with the water tank 6 through a water pump 7 and a pipeline, so that the water is recycled; a heat exchange tube bundle 3 is arranged at the middle upper part of the shell 1, a filler device 11 and a fan 2 arranged on the shell 1 are arranged right below the heat exchange tube bundle 3; the suction opening of the fan 2 is positioned at the rear side of the shell heat exchange tube bundle 3, and the upper air inlet and the lower air inlet 13 and 14 are respectively arranged at the upper part and the lower part of the shell 1;
a fog dispersal device 4 is arranged at the lower part of the shell and outside the packing device, and the fog dispersal device 4 and the heat exchange tube bundle 3 are connected in series through a connecting pipe 12; if the cooling medium is liquid, the fog dispersal device 4 is a cooling medium inlet end; if the cooling medium is gas, the heat exchange tube bundle 3 is a cooling medium inlet end; the rear side of the heat exchange tube bundle 3 is provided with a partition plate 10, the partition plate 10 separates the heat exchange tube bundle 3 from a suction opening of the fan 2, and an upper water collector 8 is arranged below the partition plate 10.
The upper water collector 8 and the lower water collector 9 are connected through a partition plate 10; the partition plate 10 and the upper water collector 8 separate an airflow channel between a draught port of the fan and the heat exchange tube bundle, and airflow passes through the upper water collector 8 from the side of the heat exchange tube bundle 3 and then is discharged into the atmosphere by the fan under the action of the fan.
The inner side of the packing device 11 is obliquely provided with a lower water collector 9, and the airflow of the lower air inlet traverses the packing device and is discharged into the atmosphere by a fan after passing through the lower water collector 9.
The heat exchange tube bundle 3 consists of a snakelike coil or a straight tube and is a round tube or a special-shaped tube; the fog dispersal device 4 is a finned tube combination, and the finned tube is a wound fin, a rolled fin or a penetrating fin; the fins increase the heat exchange area outside the tube to strengthen the heat transfer of air outside the tube.
The packing device 11 is a PVC packing cooling tower and is used for cooling spray water; the fan can be designed to be single or combined; the spraying device 5 consists of a spraying pipe and a spray head; the water tank 6 is used for storing spray water; the water pump 7 is used for recycling the spray water, and the shell 1 is made of a metal plate or a non-metal plate.
The water pump pressurizes spray water, then sprays the spray water downwards uniformly to form uniform water films outside the heat exchange tubes, outside air enters equipment from an upper air inlet and flows downwards through a fan, the water films are evaporated and vaporized continuously, heat of media in the tubes is absorbed, air humidity is greatly increased to be close to a saturated state, the media in the tubes are condensed or cooled, a partition plate separates the fan and air circulation of the heat exchange tube bundle into a U-shaped channel, the fan pumps out saturated wet air and enables the saturated wet air to pass through an upper water collector, water drops carried in the saturated wet air are removed, then the saturated wet air is discharged upwards into the atmosphere from an outlet of the fan, a small amount of water is vaporized in the process, most of water falls back into the water tank, and the water is pressurized by the water pump and then is recycled. The air exchanges heat with the medium in the fog dispersal device, the medium in the fog dispersal device is condensed or cooled, and 30-60% of heat load of the system is borne, the evaporation load of the evaporation section is reduced by 30-60% of evaporation water (the white fog is greatly reduced in winter), the air temperature is increased, and the relative humidity of the air is reduced; the spray water falls on the surface of the packing device through the spray water which is not evaporated by the heat exchange tube bundle, the air humidity which transversely passes through the packing is increased, then the spray water passes through the lower water collector on one side of the packing, the large water drops are collected and fall into the water tank, the air with high temperature and humidification is mixed with the humid air passing through the heat exchange tube bundle under the suction action of the top fan, and the air is discharged into the atmosphere from the outlet of the fan.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (6)
1. A fog-eliminating water-saving evaporative condenser comprises a shell, a water tank arranged at the bottom of the shell, a heat exchange pipe arranged at the middle upper part of the shell, a spraying device arranged right above the heat exchange pipe, a filler device arranged right below the spraying device and a fan arranged on the shell, wherein the spraying device is connected with the water tank through a water pump and a pipeline; the air suction opening of the fan is positioned at the rear side of the heat exchange tube beam of the shell, and the upper air inlet and the lower air inlet of the shell are respectively arranged at the upper part and the lower part of the shell; it is characterized in that the preparation method is characterized in that,
a fog dispersal device is arranged at the lower part of the shell and outside the packing device, and is connected with the heat exchange tube bundle in series; if the cooling medium is liquid, the fog dispersal device is a cooling medium inlet end; if the cooling medium is gas, the heat exchange tube bundle is the inlet end of the cooling medium;
the rear side of the heat exchange tube bundle is provided with a partition board which separates the heat exchange tube bundle from a suction opening of the fan, and an upper water collector is arranged below the partition board.
2. The fog-dissipating and water-saving evaporative condenser as claimed in claim 1, wherein the partition plate and the upper water collector separate an air flow passage between a suction opening of the fan and the heat exchange tube bundle, and the air flow is discharged into the atmosphere from the side of the heat exchange tube bundle through the upper water collector by the fan under the action of the fan.
3. The fog-dissipating, water-saving evaporative condenser of claim 1, wherein the inner side of the packing device is obliquely provided with a lower water collector, and the lower water collector is connected with the lower water collector through a partition plate; the air flow of the lower air inlet traverses the filler device and is discharged into the atmosphere by the fan after passing through the lower water collector.
4. The fog-dissipating, water-saving evaporative condenser of claim 1, wherein the heat exchange tube bundle is comprised of serpentine coils or straight tubes, and the heat exchange tube bundle is a round tube or a special-shaped tube; the fog dispersal device is a finned tube combination, and the finned tube is a wound fin, a rolled fin or a penetrating fin.
5. The mist-and water-saving evaporative condenser of claim 1, wherein the packing means is a PVC packing cooling tower for cooling down the spray water.
6. A fog-eliminating water-saving evaporation and condensation method is characterized in that,
the water pump pressurizes spray water, the spray water is uniformly sprayed outside the heat exchange tube bundle by the spraying device, outside air enters the equipment from the upper air inlet and flows from top to bottom, a water film formed outside the heat exchange tube bundle is continuously evaporated and vaporized, and a medium in the tube is condensed or cooled; saturated wet air passes through the upper water collector under the action of the fan and is discharged into the atmosphere from the suction port of the fan, in the process, water drops carried in the saturated wet air are recovered by the upper water collector, and most of water falls into the water tank and is pressurized by the water pump for recycling;
the air of the lower air inlet exchanges heat through the medium in the fog dispersal module, the air temperature is increased, the relative humidity is reduced, the spray water falls to the packing device through the spray water which is not evaporated by the heat exchange tube bundle, the air humidity which transversely passes through the packing device is increased, large water drops are collected to the water tank after passing through the lower water collector, the air with high temperature and humidity is mixed with the wet air passing through the heat exchange tube bundle under the action of the fan, and the air is exhausted into the atmosphere from the air suction port of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013990.4A CN111998695A (en) | 2020-09-24 | 2020-09-24 | Fog-dispersing water-saving evaporative condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013990.4A CN111998695A (en) | 2020-09-24 | 2020-09-24 | Fog-dispersing water-saving evaporative condenser |
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| Publication Number | Publication Date |
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| CN111998695A true CN111998695A (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011013990.4A Pending CN111998695A (en) | 2020-09-24 | 2020-09-24 | Fog-dispersing water-saving evaporative condenser |
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| CN (1) | CN111998695A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251823A (en) * | 2021-05-12 | 2021-08-13 | 江西方舟流体科技有限公司 | Water vapor recovery device of fog dissipation cooling tower |
-
2020
- 2020-09-24 CN CN202011013990.4A patent/CN111998695A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251823A (en) * | 2021-05-12 | 2021-08-13 | 江西方舟流体科技有限公司 | Water vapor recovery device of fog dissipation cooling tower |
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