CN217424041U - Energy-saving water-saving fog-dissipation closed cooling tower with pre-cooling function - Google Patents
Energy-saving water-saving fog-dissipation closed cooling tower with pre-cooling function Download PDFInfo
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- CN217424041U CN217424041U CN202221467091.6U CN202221467091U CN217424041U CN 217424041 U CN217424041 U CN 217424041U CN 202221467091 U CN202221467091 U CN 202221467091U CN 217424041 U CN217424041 U CN 217424041U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
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Abstract
The utility model belongs to the technical field of the cooling tower, a energy-conserving water conservation fog dispersal closed cooling tower with precooling function is related to, including cooling tower body, sprinkler system, heat exchange tube, air intake and air outlet, the air intake with be equipped with the precooling heat exchange tube in the wind channel of air outlet, the utility model provides an energy-conserving water conservation fog dispersal closed cooling tower with precooling function combines evaporative cooling and air-cooled advantage, can effectually make closed cooling tower reach energy-conservation, water conservation to eliminate the effect of white fog. Meanwhile, the water consumption for humidification is reduced, the power of the water pump is reduced, and the energy-saving effect can be achieved.
Description
Technical Field
The utility model belongs to the technical field of the cooling tower, in particular to energy-conserving water conservation fog dispersal closed cooling tower with precooling function.
Background
The closed cooling tower is characterized in that a pipe bundle is arranged in the tower, and heat exchange is carried out between external air and spray water and a medium in the pipe, so that the temperature of the medium is reduced. Because of closed circulation, the medium in the pipe is not polluted, the high-efficiency transportation of the main equipment can be well protected, and the service life is prolonged. The method is widely applied to industries such as metallurgy, electric power, petroleum, chemical industry, food and the like.
In the closed cooling tower, the cold air and the water form saturated damp and hot air after heat exchange. When the air conditioner operates in winter, saturated damp and hot air is discharged out of the tower to form white fog masses, and the white fog masses have adverse effects on the surrounding environment. Because the national requirements on environment are increasingly strict and people pay more attention to environmental protection, the cooling tower is more and more important to eliminate white fog and save water resources.
The prior cooling tower needs to take anti-freezing measures when the temperature is lower than 0 ℃, otherwise, the phenomenon of freezing equipment is easy to occur.
For a medium with higher temperature (such as high-temperature gas with the temperature of more than 100 ℃), the medium cannot directly enter a heat exchange tube to be evaporated and cooled by water, an air cooler needs to be additionally arranged in front of a cooling tower to pre-cool, and two sets of devices are adopted. High investment cost, high operation cost and maintenance cost and large occupied area.
SUMMERY OF THE UTILITY MODEL
The utility model provides an energy-conserving water conservation fog dispersal closed cooling tower with precooling function can solve the problem that points out among the background art.
The utility model provides an energy-conserving water conservation fog dispersal closed cooling tower with precooling function, includes cooling tower body, sprinkler system, heat exchange tube, air intake and air outlet, the air intake with be equipped with the precooling heat exchange tube in the wind channel of air outlet.
Preferably, the precooling heat exchange tube is arranged in the cooling tower body and at the air outlet.
Preferably, one end of the precooling heat exchange tube is a medium inlet, and the other end of the precooling heat exchange tube is connected with the heat exchange tube.
Preferably, the precooling heat exchange tube is a fin heat exchange coil.
The utility model provides an energy-conserving water conservation fog dispersal closed cooling tower with precooling function combines evaporative cooling and air cooling's advantage, can effectually make closed cooling tower reach energy-conservation, water conservation to eliminate the effect of white fog. Meanwhile, the water consumption for humidification is reduced, the power of the water pump is reduced, and the energy-saving effect can be achieved.
Evaporative heat exchange operation mode
Under the condition of summer or higher temperature of surrounding air, the operation mode of the utility model adopts evaporative cooling. In this mode, the spray device is turned on and the spray device is turned off.
The high-temperature medium firstly enters the precooling heat exchange tube of the high-temperature section for precooling, and because the temperature of saturated wet air flowing out of the coil tube and the surface of the filler is far lower than the temperature of the medium in the precooling heat exchange tube, when the wet air passes through the precooling heat exchange tube, the high-temperature medium in the precooling heat exchange tube is cooled, meanwhile, the temperature of the wet air is raised, but the moisture content is unchanged, according to the air enthalpy diagram 3, the relative humidity of the air is reduced from the state A to the state B, and the air is in an unsaturated state, so that no white mist is generated after the air is discharged by a fan.
And the medium flowing out of the high-temperature precooling heat exchange tube enters the normal-temperature heat exchange tube for secondary cooling. The spray water is pumped from the cold water tank to a spray water distribution system above the main heat exchange tube bundle by a water pump. Evaporative cooling takes place on the surfaces of the heat exchange tube bundles wetted by the spray water, cooling the medium to the required temperature. The spray water falls to the surface of the filler after passing through the coil pipe, evaporative heat transfer is enhanced through secondary cooling of the spray water, air respectively flowing through the coil pipe and the surface of the filler is saturated by steam and takes away heat, and the air enters a high-temperature section for cooling.
Wet air cooling mode of operation
When spring and autumn or ambient air temperature are lower, open spray set or for making the air reach better atomization effect, can add spray set in air intake department, open the spray set of air intake, make the air humidification, under adiabatic mode, reduce the dry bulb temperature of air to near wet bulb temperature, make the heat transfer difference in temperature increase, improve heat transfer effect. Simultaneously has the advantages of humidification and evaporation wet air coolers, and consumes little water actually. In most climates, ambient air still has considerable potential to absorb moisture, and adiabatically cooled air temperatures can be significantly reduced, thus increasing the rate of sensible heat transfer.
The high-temperature medium firstly enters the pre-cooling heat exchange tube of the high-temperature section, the temperature of saturated wet air flowing out of the coil and the surface of the filler is far lower than the temperature of the medium in the pre-cooling heat exchange tube, when the wet air passes through the pre-cooling heat exchange tube, the high-temperature medium in the pre-cooling heat exchange tube is pre-cooled, the temperature of the wet air is increased at the same time, but the moisture content is unchanged, according to an air enthalpy-humidity diagram 3, the relative humidity of the air is reduced from an A state to a B state, the air is in an unsaturated state, and therefore, after the air is discharged by a fan, no white fog is generated.
And the medium flowing out of the high-temperature section precooling heat exchange tube enters the normal-temperature section heat exchange tube for secondary cooling. After the wet and cold air is subjected to heat exchange through the heat exchange tube at the normal temperature section, the temperature is increased, and according to the enthalpy-humidity diagram 3 of the air, the air is in a state A to a state C; and the energy consumption of the water pump motor is greatly reduced, the electric energy is saved, and meanwhile, the outlet temperature required by the designed fluid is also ensured.
Dry air cooling mode of operation
In winter or when the ambient air temperature is low, the operation is in a dry air cooling mode. The spraying device and the spraying device are both closed, and the water pump is closed, so that no electric energy is consumed by the water pump, and energy is saved; since no water is consumed, water is saved, and no white mist is generated.
Drawings
FIG. 1 is a first schematic structural diagram of the present invention,
FIG. 2 is a second schematic view of the structure of the present invention,
figure 3 is a schematic diagram of the enthalpy moisture of air,
description of reference numerals:
the reference numbers in the figures: a cooling tower body 1; a spraying system 2; a heat exchange tube 3; an air inlet 4; an air outlet 5; a precooling heat exchange tube 6; a ventilator 7.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
Example 1:
as shown in fig. 1-2, the embodiment of the utility model provides a pair of energy-conserving water conservation fog dispersal closed cooling tower with precooling function, including cooling tower body 1, spraying system 2, heat exchange tube 3, air intake 4 and air outlet 5, be equipped with precooling heat exchange tube 6 in air intake 4 and the wind channel of air outlet 5, precooling heat exchange tube 6 is fin heat exchange coil, and precooling heat exchange tube 6 sets up in cooling tower body 1, and air outlet 5 department, 6 one end of precooling heat exchange tube are the medium entry, and the other end is connected with heat exchange tube 3.
In addition, the cooling medium in the utility model can be various common high-temperature gases, namely the evaporative cooler in the industry; but also various liquids such as water, oil, etc.; if the cooling medium is water, the cooling medium is a closed cooling tower in the industry.
The utility model discloses a theory of operation: a precooling heat exchange tube 6 with an increased temperature section is additionally arranged in front of the ventilator 7; the high-temperature medium firstly enters the precooling heat exchange tube 6 and is precooled in the precooling heat exchange tube 6 for the first time; and cooling the heat exchange tube 3 in the normal temperature section for the second time to the required temperature. The cooling device is particularly suitable for cooling high-temperature media and large-temperature-difference media; energy-saving, water-saving and fog-dispersing; can effectively eliminate the scaling phenomenon of the cooling heat exchange tube.
The temperature of saturated wet air flowing out of the surfaces of the coil pipe and the filler is far lower than the temperature of a medium in the precooling heat exchange pipe 6, when the wet air passes through the precooling heat exchange pipe 6, the high-temperature medium in the precooling heat exchange pipe 6 is precooled, the temperature of the wet air is increased at the same time, but the moisture content is unchanged, according to an air enthalpy diagram 3, the relative humidity of the air is reduced from a state A to a state B, and the air is in an unsaturated state, so that no white mist is generated after the air is discharged by a fan.
The utility model is suitable for a single or many closed cooling tower combinations. And is also suitable for combining a single or a plurality of evaporative condensers.
The following disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.
Claims (4)
1. The utility model provides an energy-conserving water conservation fog dispersal closed cooling tower with precooling function, includes cooling tower body (1), spraying system (2), heat exchange tube (3), air intake (4) and air outlet (5), its characterized in that: and precooling heat exchange tubes (6) are arranged in air channels of the air inlet (4) and the air outlet (5).
2. The closed cooling tower with the functions of pre-cooling, energy saving, water saving and fog dispersal as claimed in claim 1, wherein: the precooling heat exchange tube (6) is arranged in the cooling tower body (1) and the air outlet (5) is arranged.
3. The closed cooling tower with the functions of pre-cooling, energy saving, water saving and fog dispersal as claimed in claim 2, wherein: one end of the precooling heat exchange tube (6) is a medium inlet, and the other end of the precooling heat exchange tube is connected with the heat exchange tube (3).
4. An energy-saving water-saving fog-dispersal closed cooling tower with a precooling function as claimed in claim 3, wherein: the precooling heat exchange tube (6) is a fin heat exchange coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221467091.6U CN217424041U (en) | 2022-06-13 | 2022-06-13 | Energy-saving water-saving fog-dissipation closed cooling tower with pre-cooling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221467091.6U CN217424041U (en) | 2022-06-13 | 2022-06-13 | Energy-saving water-saving fog-dissipation closed cooling tower with pre-cooling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217424041U true CN217424041U (en) | 2022-09-13 |
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ID=83172368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221467091.6U Active CN217424041U (en) | 2022-06-13 | 2022-06-13 | Energy-saving water-saving fog-dissipation closed cooling tower with pre-cooling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217424041U (en) |
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2022
- 2022-06-13 CN CN202221467091.6U patent/CN217424041U/en active Active
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