CN213300910U

CN213300910U - Forced induced draft type fog dissipation cooling system

Info

Publication number: CN213300910U
Application number: CN202022232056.3U
Authority: CN
Inventors: 安源; 舒吉龙; 密长海; 冯璟; 荣立爽
Original assignee: North China Power Engineering Co Ltd of China Power Engineering Consulting Group
Current assignee: North China Power Engineering Co Ltd of China Power Engineering Consulting Group; North China Power Engineering Beijing Co Ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-05-28
Anticipated expiration: 2030-10-09

Abstract

The utility model relates to a force induced air formula fog cooling system that disappears for the wet cold system of mechanical ventilation carries out the fog dispersal from the wet hot-air of saturation of wet cold system export output and handles, and it contains draught fan, air cooling radiator, first adjustable shutter, the adjustable shutter of second, fog dispersal system delivery pipe and fog dispersal system wet return. The first adjustable shutter extends upwards from the periphery of the top of the mechanical ventilation wet cooling system along the periphery, encloses the outlet of the wet cooling system therein, and forms a bleed air opening above. The second adjustable shutter is disposed over the bleed air opening. The air cooling radiator is laid on the outer side of the first adjustable louver, and the induced draft fans are erected on the outer side of the air cooling radiator. A large amount of environment dry and cold air is introduced to be mixed with saturated humid and hot air at an outlet of a humid and cold system, the absolute moisture content of the air at the outlet of the fog dispersal device is reduced, and meanwhile, the air-cooled radiator is used for heating the mixed air, so that the double efficient fog dispersal effect is realized, and the energy consumption is saved.

Description

Forced induced draft type fog dissipation cooling system

Technical Field

The utility model relates to a force induced air formula fog dispersal cooling system, mainly used have the cooling tower or the integrated device that the fog dispersal required.

Background

The outlet of the existing mechanical ventilation wet-cold system directly discharges the wet and hot air to the atmosphere, the ambient temperature in winter is lower, the relative humidity of the air is higher, the saturated wet and hot air output by the outlet is contacted with the ambient air to form a large amount of fog drops in the cold process, the environmental quality is influenced, and a large amount of white fog in winter is scattered to the road to shield the sight line and easily form skating, so that the traffic hidden trouble exists. However, the existing fog dispersal schemes directly heat the humid and hot air at the outlet of the mechanical ventilation wet cooling tower or reduce the moisture content by adding dry air, and generally have poor fog dispersal effect.

Based on the problem, the utility model discloses the innovation provides a force induced air formula fog dispersal cooling system arranges on mechanical draft wet cold system upper portion through adopting to force induced air formula air cooling system, adopts under the fog dispersal mode to introduce a large amount of environment dry and cold air and the mixing of wet and hot air of wet cold system export saturation from upper portion, reduces the absolute moisture content of fog dispersal device export air, utilizes the air cooling radiator to heat the air mixture simultaneously to realize dual compulsory fog dispersal effect.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model provides a force induced air formula fog cooling system that disappears, its concrete technological means is:

the utility model relates to a force induced air formula fog cooling system that disappears for the wet cold system of mechanical ventilation carries out the fog dispersal from the wet hot-air of saturation of wet cold system export output and handles, and it contains draught fan, air cooling radiator, first adjustable shutter, the adjustable shutter of second, fog dispersal system delivery pipe and fog dispersal system wet return. The first adjustable shutter extends upwards from the periphery of the top of the mechanical ventilation wet cooling system along the periphery, encloses the outlet of the wet cooling system therein, and forms a bleed air opening above. The second adjustable louver overlies the bleed air opening. The air cooling radiator is laid on the outer side of the first adjustable shutter. And the induced draft fans are erected on the outer sides of the air cooling radiators. The air cooling radiator is communicated with the water supply pipe of the fog dissipation system and the water return pipe of the fog dissipation system.

Furthermore, the upper end of the air cooling radiator is connected with a water supply pipe of the fog dissipation system, and the lower end of the air cooling radiator is connected with a water return pipe of the fog dissipation system. The water supply pipe of the fog dispersal system is provided with a first valve, and the lower end of the first valve is communicated with a circulating water supply pipeline. The water return pipe of the fog dispersal system is provided with a second valve, and the lower end of the second valve is connected to a circulating water return pipe.

Furthermore, the system also comprises a wet cooling system water supply pipe and a wet cooling system water return pipe. The water supply pipe of the wet cooling system is provided with a third valve and is connected with the circulating water supply pipeline. The wet cooling system water return pipe is provided with a fourth valve and is connected with the circulating water return pipeline.

Furthermore, the first adjustable louver extends upwards from the periphery of the top of the mechanical ventilation wet cooling system along the periphery to form a regular quadrangular frustum pyramid or a cuboid structure.

Furthermore, the opening and closing angle range of the window leaves of the first adjustable shutter and the second adjustable shutter is 0-90 degrees.

Furthermore, the air-cooled radiator adopts a finned tube dry-cooled radiator.

The utility model has the advantages that: the double fog dissipation effect is realized through a set of fog dissipation equipment, and firstly, the absolute moisture content of air is reduced by introducing a large amount of dry and cold air to be mixed with the humid and hot air at the outlet of the humid and cold tower. And secondly, the mixed air is heated by circulating water waste heat, the temperature of the mixed air is increased, and the relative humidity of the outlet air is reduced. The double adjustable fog dissipation mode can greatly improve the fog dissipation effect, realize the annual effective fog dissipation according to different external environments, and save the water consumption of 7-10% year at the same time. The concrete expression is as follows:

(1) under the fog dispersal mode, a large amount of ambient dry and cold air is introduced by utilizing an air cooling radiator and matching with an induced draft fan to be mixed with saturated damp and hot air at an outlet of a damp and cold system, so that the absolute moisture content of the mixed air is reduced;

(2) the air cooling radiator is used for heating the damp and hot air at the outlet of the damp and cold system, and the heat source adopts circulating water or waste heat of other systems, so that the temperature and the relative humidity of the mixed air are improved;

(3) the top surface of the outlet of the air cooling radiator structure is provided with an adjustable shutter, and the flow of the introduced ambient dry and cold air is controlled by adjusting the opening degree of the shutter, so that the aim of fog dissipation is fulfilled under different ambient air temperature and humidity conditions, and the power consumption of an induced draft fan is saved as much as possible;

(4) the dry and cold air and the saturated wet and hot air at the outlet of the wet system are introduced, and the full mixing is realized by the high-speed rotation of the induced draft fan and the turbulent flow of the finned tubes, so that the fog dissipation effect of the device is improved.

Drawings

Fig. 1 is a schematic structural view of the forced air-induced fog-dissipation cooling system of the present invention.

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings.

As shown in fig. 1, the utility model relates to a forced induced draft formula fog dispersal cooling system for the wet cold system 10 of mechanical ventilation carries out the fog dispersal from the wet hot-air of saturation of the export 11 output of wet cold system and handles, and it contains draught fan 20, air cooling radiator 21, first adjustable shutter 22, the adjustable shutter 23 of second, fog dispersal system delivery pipe 24 and fog dispersal system wet return 25. The first adjustable louver 22 extends upward from the top periphery of the mechanical ventilation wet cooling system 10 along the periphery, encloses the wet cooling system outlet 11 therein, and forms a bleed air opening 26 above. The second adjustable shutter 23 covers above the bleed air opening 26. The air-cooling radiator 21 is laid outside the first adjustable louver 22. The induced draft fans 20 are installed outside the air-cooled radiator 21. A large amount of ambient dry and cold air is introduced by the air cooling radiator 21 and the induced draft fan 20 to be mixed with the saturated humid and hot air at the outlet 11 of the wet and cold system, so that the absolute moisture content of the mixed air is reduced. Meanwhile, a second adjustable shutter 23 is arranged above the air-bleed opening 26 of the air-cooling radiator 21, and the flow of the introduced ambient dry and cold air is controlled by adjusting the opening of the shutter, so that the aim of fog dissipation under different ambient air temperature and humidity conditions is fulfilled, and the power consumption of the induced draft fan 20 is saved as much as possible. Specifically, when the ambient temperature is higher and the relative humidity is lower, the opening degree of the second adjustable louver 23 is larger, the dry and cold air introduction flow rate is larger, and the operation energy consumption of the induced draft fan 20 and the air cooling radiator 21 is further saved. And when dry and cold air and saturated humid and hot air output from the outlet 11 of the wet system are introduced, the dry and cold air and the saturated humid and hot air are fully mixed by utilizing the high-speed rotation of the induced draft fan 20 and the turbulent flow of the air cooling radiator 21, so that the fog dissipation effect is further improved. The air-cooled radiator 21 is communicated with the mist elimination system water supply pipe 24 and the mist elimination system water return pipe 25. Therefore, the mixed air is heated by waste heat of a circulating water system or other systems, and the temperature and the relative humidity of the mixed air are further improved.

Preferably, as shown in fig. 1, the air-cooled radiator 21 is connected at its upper end to the defogging system water supply pipe 24 and at its lower end to the defogging system water return pipe 25. The water supply pipe 24 of the fog dispersal system is provided with a first valve 241, and the lower end thereof is communicated with the circulating water supply pipe 30. The water return pipe 25 of the fog dispersal system is provided with a second valve 251, and the lower end of the second valve is connected to the circulating water return pipe 40. Further comprises a wet cooling system water supply pipe 12 and a wet cooling system water return pipe 13. The water supply pipe 12 of the wet cooling system is provided with a third valve 121 and is connected to the circulating water supply pipe 30. The wet cooling system return pipe 13 is provided with a fourth valve 131 and connected to the circulating water return pipe 40. The air cooling radiator 21 can be started and stopped by utilizing the circulating pipeline and the valve according to different seasons and external environments, so that the switching between the fog dissipation mode and the non-fog dissipation mode is realized, the fog dissipation effect is met, and the energy consumption is saved.

Preferably, as shown in fig. 1, the first adjustable louver 22 extends upward from the top periphery of the mechanical ventilation wet cooling system 10 along the periphery to form a regular quadrangular frustum pyramid structure. The opening and closing angle range of the first adjustable louver 22 and the second adjustable louver 23 is 0 to 90 degrees. The air-cooling radiator 21 is a finned tube dry-cooling radiator.

The utility model relates to a main operating mode and the operation method of forced induced draft formula fog dispersal cooling system adjustable according to the environment as follows.

The first mode is as follows: fog dispersal mode (air cooling radiator + mechanical ventilation wet cooling system series operation mode). In the season with high temperature and high relative humidity, the first valve 241, the second valve 251, the third valve 121 and the fourth valve 131 are opened, the first adjustable shutter 22 is opened, the opening degree of the second adjustable shutter 23 is adjusted according to the ambient temperature and the relative humidity, the introduction amount of ambient dry and cold air is controlled, the energy consumption is saved as far as possible on the premise of meeting the fog dissipation purpose, and the high-efficiency fog dissipation is realized.

And a second mode: non-defogging mode (mechanical ventilation wet cooling system independent operation). When the ambient temperature is high and the relative humidity of the air is low in summer, the saturated hot and humid air output from the outlet 11 of the wet cooling system can be rapidly diffused, and the mechanical ventilation wet cooling system 10 can be independently operated. The first valve 241 and the second valve 251 are closed, the third valve 121 and the fourth valve 131 are opened, the first adjustable louver 22 is fully closed, and the second adjustable louver 23 is fully opened, so that the saturated humid hot air output from the outlet 11 of the wet cooling system is quickly discharged, mist is not generated, and the operation energy consumption of the air cooling radiator 21 and the induced draft fan 20 is saved.

The utility model discloses forced air induction formula fog dispersal cooling system introduces a large amount of environment dry and cold air and wet and cold system outlet saturated damp and hot air to mix on the one hand, effectively reduces the absolute moisture content of the mixed air at the fog dispersal device outlet; on the other hand, the mixed air is heated by waste heat of a circulating water system or other systems, so that the temperature of the outlet air is increased. The high-efficiency fog dissipation purpose of the mechanical ventilation wet cooling tower is efficiently realized through the two technical means, and the energy consumption is greatly saved.

Claims

1. Forced air-induced fog dispersal cooling system for the saturated damp and hot air that mechanical ventilation wet and cold system (10) exported from wet and cold system export (11) carries out fog dispersal treatment, its characterized in that: comprises a draught fan (20), an air cooling radiator (21), a first adjustable shutter (22), a second adjustable shutter (23), a fog dispersal system water supply pipe (24) and a fog dispersal system water return pipe (25);

wherein the first adjustable shutter (22) extends circumferentially upwards from the top periphery of the mechanical ventilation wet cooling system (10), encloses the wet cooling system outlet (11) therein and forms a bleed air opening (26) above; the second adjustable shutter (23) covering over the bleed air opening (26);

the air cooling radiator (21) is laid on the outer side of the first adjustable louver (22); the induced draft fans (20) are erected on the outer side of the air cooling radiator (21);

the air cooling radiator (21) is communicated with the fog dissipation system water supply pipe (24) and the fog dissipation system water return pipe (25).

2. The forced air induction type defogging and cooling system according to claim 1, wherein the upper end of the air-cooled radiator (21) is connected with the defogging system water supply pipe (24), and the lower end is connected with the defogging system water return pipe (25);

a first valve (241) is arranged on the water supply pipe (24) of the fog dispersal system, and the lower end of the water supply pipe is communicated with a circulating water supply pipeline (30);

and a second valve (251) is arranged on the fog dispersal system water return pipe (25), and the lower end of the fog dispersal system water return pipe is connected to a circulating water return pipeline (40).

3. The forced induced draft defogging and cooling system according to claim 2, further comprising a wet cooling system water supply pipe (12) and a wet cooling system water return pipe (13);

a third valve (121) is arranged on the water supply pipe (12) of the wet cooling system and is connected with the circulating water supply pipeline (30);

and a fourth valve (131) is arranged on the wet cooling system water return pipe (13) and is connected with the circulating water return pipeline (40).

4. The forced draft fog dispersal cooling system of claim 1, wherein said first adjustable louver (22) extends circumferentially upwardly from the top periphery of said mechanical ventilation wet cooling system (10) to form a regular rectangular prism or rectangular parallelepiped configuration.

5. The forced-induction defogging and cooling system according to claim 1, wherein the opening and closing angle of the louvers of said first adjustable louver (22) and said second adjustable louver (23) ranges from 0 to 90 degrees.

6. The forced-induction defogging cooling system according to claim 1, wherein the air-cooled radiator (21) is a finned tube dry-cooled radiator.