CN112797816A - Heat exchange tower capable of adjusting direction of air outlet - Google Patents
Heat exchange tower capable of adjusting direction of air outlet Download PDFInfo
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- CN112797816A CN112797816A CN202110149632.4A CN202110149632A CN112797816A CN 112797816 A CN112797816 A CN 112797816A CN 202110149632 A CN202110149632 A CN 202110149632A CN 112797816 A CN112797816 A CN 112797816A
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- air
- servo motor
- heat exchange
- tower
- air outlet
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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
- F28C1/10—Arrangements for suppressing noise
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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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- 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
- F28F25/10—Component parts of trickle coolers for feeding gas or vapour
- F28F25/12—Ducts; Guide vanes, e.g. for carrying currents to distinct zones
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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
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
Abstract
The invention relates to a heat exchange tower capable of adjusting the direction of an air outlet, which comprises a tower body, an axial fan and a wind direction adjusting mechanism arranged on the tower body, wherein the wind direction adjusting mechanism comprises an air duct, a wind guide pipe, a circular guide rail, a direction rotating wheel, a servo motor driving wheel, a wind direction detector and a controller, the servo motor driving wheel is connected with a servo motor through a servo motor rotating shaft, the controller controls the servo motor to operate through a detection signal of the wind direction detector, the servo motor drives the servo motor driving wheel to rotate, the direction rotating wheel realizes driven rotation under the rotation of the servo motor driving wheel, and the wind guide pipe sleeved in the air duct realizes horizontal two-dimensional rotation along the circular guide rail through the driven rotation of the direction rotating wheel, so that the. The invention can make the direction of the air outlet of the heat exchange tower consistent with the natural wind, reduce the power of the axial flow fan motor in the tower body, improve the cooling or heat absorption effect of the heat exchange tower, and can be applied to various fields requiring cooling process requirements of various rows.
Description
Technical Field
The invention relates to air heat exchange equipment, in particular to a heat exchange tower with an adjustable air outlet direction.
Background
In order to achieve the difficult goal of basically achieving carbon neutralization in China in about 2060 years, energy conservation and emission reduction are necessary, development of new energy-saving technologies to replace traditional equipment is a great trend, in order to achieve the great goal, the great problem about the future living environment of human beings is solved, social sustainable development not only needs renewable energy, but also needs efficient energy utilization to lay a foundation for future development of human beings.
The reasonable use of energy is an urgent problem to be solved because the human production and life cannot be separated from the consumption of energy. The cooling tower belongs to energy consumption equipment, other energy consumption equipment can be more energy-saving, and the production process also can be more in line with the process requirements. The cooling tower works on the principle that the ventilating air is blown at the correct angle towards the dripping water, a part of the water is evaporated when the air passes through the water droplets, and the remaining water is cooled as the heat used to evaporate the water droplets lowers the temperature of the water. The cooling effect of this method depends on the relative humidity of the air as well as the pressure. When water drops contact with air, on one hand, because air and water directly transfer heat, on the other hand because there is pressure difference between steam surface and the air, produces the evaporation phenomenon under the effect of pressure difference, and evaporation latent heat can be taken away in the evaporation of water, takes away the heat in the aquatic and evaporates the heat transfer promptly to reach the purpose of cooling. The cooling tower is the cooling device who uses commonly in mill, its theory of operation is that hot water in the water tower is transferred, transfer the cooling zone again, the cold air that blows into with the cooling tower outside is carried out the meeting, hot water evaporates in a large number, reach the cooling effect, in order to guarantee good cooling effect, the regulation of cooling tower air-out is very important, traditional wind direction adjusting device has accomplished the air door and has adjusted the change to the wind direction, make the fine entering core region of cold wind, reach fine cooling effect, but in use, some other problems have been produced.
In the process of pursuing a new technology and a new process of a water-saving and fog-eliminating cooling tower, in order to reduce the consumption of water resources as much as possible, technologists invent various cooling towers for saving water resources, the prior related technologies of the water-saving and fog-eliminating cooling tower mostly adopt dry-wet combination, and the space combination of a dry area and a wet area is realized by utilizing the combination of a finned tube heat exchanger and filler to reduce the waste of the water resources, so the water resources are generally saved by about 50 percent compared with the traditional cooling tower, and because the spraying process still has the water foam which is discharged into the atmosphere along with the air, the circulating water quantity still can be lost by about 1.5 percent every hour. Traditional wind direction adjusting device is difficult to keep unanimous with the natural wind direction in addition, and in use can only carry out the wind direction and adjust for the fine nuclear region of entering of air current. The influence of natural wind on the heat source tower can also be reflected in that rain and snow are blown into the solution in the tower to accelerate the upward movement of the freezing point temperature of the anti-freezing solution, so that the evaporator of the heat pump unit is frozen. When the cooling tower is used, natural wind can blow away more water.
The cooling tower has wide application, and is used in various fields of national production, wherein the most typical industries comprise steel, chemical industry, pharmacy, chemical fiber, cement, building materials, brewing, papermaking, oil refining, cigarettes, thermoelectricity, hospitals, hotels and hotels, office buildings, subways, gymnasiums, cinemas and other industries, and the cooling tower plays an indispensable important role of equipment for efficiently utilizing energy.
In summer, the circulating water with the temperature higher than the temperature of the wet air ball is uniformly sprayed on the hydrophilic filler layer of the concave-convex wave plate, the circulating water forms a water film on the hydrophilic filler surface, the air reversely flows through surface gaps of the filler space of the multi-layer concave-convex wave plate to form a contact surface between water and air, the water film and the air directly perform countercurrent heat exchange of sensible heat and latent heat (evaporation), the residual heat of the cooling circulating water of the refrigerating machine is absorbed during the evaporation of the water, the temperature of the circulating cooling water is reduced, the cooling water is close to the upper limit value of the temperature of the wet air ball by 1-2 ℃, and thus, the cooling effect is much stronger than that of air cooling.
If the anti-freezing solution is used as a heat source, the anti-freezing solution with the temperature lower than the wet bulb temperature is uniformly sprayed on the filler layer of the filler with lyophilic property of the concave-convex wave plate, the anti-freezing solution forms a liquid film on the surface of the lyophilic filler, and air reversely flows through surface gaps of the filler space of the multi-layer concave-convex wave plate to form a contact surface between liquid and gas. The heat exchange and heat absorption of the solution in the heat source tower mainly depend on a surface liquid film, and the latent heat exchange exists while the sensible heat exchange occurs.
Sensible heat exchange: the heat exchange result is caused by the heat conduction, convection and radiation when the temperature difference exists between the air and the antifreeze solution.
Latent heat exchange: is the result of the latent heat of vaporization given off (or absorbed) by the condensation (or evaporation) of water vapor in the air.
The total heat exchange is algebraic sum of sensible heat exchange and latent heat (or negative latent heat) exchange, and the antifreeze solution is close to the lower limit value of the air wet bulb temperature of 1-2 ℃.
During the continuous period of 0-4 ℃ in winter, the heat source tower anti-freezing solution film directly exchanges heat between sensible heat and latent heat with air, simultaneously condenses moisture in the air, the concentration of the anti-freezing solution is reduced, and the freezing point temperature can move upwards. The concentration device is used for concentrating the diluted antifreezing solution and lowering the freezing temperature of the solution.
The cooling tower and the heat source tower work by heat exchange between fluid in the system and outside air, the cooling tower exchanges heat with the surrounding air by the fluid with the temperature higher than the ambient temperature, and the cooling tower and the heat source tower are a process of exhausting heat outwards by the system; the heat source tower is a process for absorbing heat to the ambient air by using the fluid with the temperature lower than the ambient temperature to exchange heat with the ambient air.
Regardless of the cooling tower or the heat source tower, the structural form thereof is diversified, and the structural form is also under continuous innovation, taking the working process of the circular counter-flow cooling tower as an example now: the hot water from the machine room passes through the pipeline, the transverse throat, the bent throat and the central throat by a water pump at a certain pressure, presses the circulating water into a spraying device of the cooling tower, and uniformly sprays the water on the filler through small holes on a spraying pipe; the dry air with low break value enters the tower from the bottom air inlet net under the action of the fan, hot water forms a water film when flowing through the surface of the filler and exchanges heat with the air, hot air with high break value and high humidity is extracted from the top, and cooling water drops into the liquid tray and flows into the host through the water outlet pipe. However, the evaporation of water into the air does not proceed endlessly. When the air in contact with water is not saturated, water molecules are continuously evaporated into the air, but when the air on the water-air contact surface is saturated, the water molecules are not evaporated, and are in a dynamic equilibrium state. The number of water molecules evaporated is equal to the number of water molecules returned from the air to the water, and the water temperature remains constant.
On the contrary, when the heat source tower is used as a heat source tower, the fluid in the tower absorbs heat to the air, the supercooled fluid is required to be adopted for exchanging heat with the surrounding air, in order to prevent the supercooled fluid from freezing, the antifreezing fluid is required to be adopted as a heat absorbing medium, the antifreezing fluid not only absorbs the sensible heat of the air, but also absorbs the latent heat of water vapor in the air, so that the concentration of the antifreezing fluid is diluted, and when the temperature of the antifreezing fluid is diluted to the freezing point, a heat exchanger is frozen, and therefore huge economic loss is caused. Also rain and snow enter the solution in the tower to accelerate the upward movement of the freezing temperature, which will also lead to severe consequences of freezing the tubes. In addition, the drift and loss of the antifreeze not only causes pollution to the surrounding environment, but also causes corrosion to the equipment, and in order to solve the problems, the technical scheme is endless. Most of the systems adopt the related technologies of liquid-blocking shutters or grilles, and air outlets adopt air guide pipes to deal with the solution flowing and prevent rain and snow from entering the system, and the directional air guide pipes always meet the situation opposite to natural wind, so that the air output is greatly reduced, the effect of blocking rain and snow is not achieved, and the heat absorption or heat dissipation effect is seriously influenced.
In order to save the power consumption of the fan motor and avoid the motor from being corroded by fluid, particularly the corrosion of the motor by the antifreeze, the power redundancy of the cooling circulating pump is used for driving the water turbine to drive the axial flow fan blades to rotate, and a plurality of practical cases are also found, but the cases of successfully reforming the cooling tower are not many. Particularly, in the project of reforming the cooling tower of about 300 tons/h, the design requirement of the fan rotating speed of the cooling tower of about 300 tons/h is between 200 and 300 revolutions/min, the cooling tower of the fan with high rotating speed can not achieve the cooling effect, and the fan cooling tower with rotating speed lower than 150 revolutions/min has the phenomenon of reducing the circulating water quantity, so that the ideal effect is difficult to achieve. The reason is that the reduction of the amount of circulating cooling water is directly influenced by the resistance of the reducer, which means that the ideal water head pressure cannot be reached by utilizing the surplus poplar, and in a word, the following three defects also exist:
1. the rotating speed is slow: the flow velocity of circulating water in a pipe of a cooling system is about 1.5m/s generally, the actual measurement is generally between 1m/s and 2m/s, the minimum diameter of the outer diameter of a power impeller in a water turbine is 30-40 cm, and the rotating speed of the power impeller in the water turbine can only reach below 100 revolutions per minute by pushing the circulating water, so that the water turbine water inlet in the market at present is changed in diameter, the diameter of the original water inlet pipeline is reduced to be below 5 percent, the rotating speed can be accelerated by increasing the diameter changing port, the resistance of the circulating water is generated, most of surplus kinetic energy and potential energy are lost, the flow velocity can hardly reach above 200 revolutions per minute even through changing and increasing, and the ideal gas-water specific heat exchange effect is difficult to achieve.
2. The total circulating water flow is reduced to reduce the cooling effect: after the adoption of reducing and accelerating, the reducing opening is too narrow and small, the resistance of circulating water is increased, the diameter of the common reducing opening is reduced to be less than 5 percent of the diameter of the original water inlet pipeline, the circulation volume of cooling water is directly reduced, and even if the air exhaust revolution of the cooling tower can be reached, the effect of reducing the air exhaust revolution of the cooling tower due to the reducing opening is difficult to change. For example, the circulation volume of 1000 tons/h of cooling water is reduced to 500 tons/h or less, and the reduction also increases the load of the water pump and reduces the service life of the water pump.
3. Mechanical vibration and noise: exempt from electric cooling tower water drive hydraulic turbine in the existing market and adopt single import water drive hydraulic turbine basically, the universal fatal problem can produce very big mechanical vibration behind the single mouthful of hydraulic turbine of cooling tower installation because the single impact vibration that intakes can not be balanced, thereby lead to producing mechanical vibration to whole cooling tower, can cause certain destruction like this, long-term use can reduce the life of cooling tower, mechanical vibration also can produce noise pollution, this is harmful to health and environment.
When the tower is used as a heat source tower, a cardan shaft is adopted in the prior art scheme and then a belt pulley transmission mode is combined, so that an axial flow fan motor is arranged on the outer wall of the tower body, the purpose that the motor is prevented from being invaded by antifreeze liquid droplets is achieved, but the cardan shaft is low in transmission efficiency and high in noise.
Disclosure of Invention
In view of the above problems, the present invention provides a heat exchange tower with adjustable air outlet direction, which is a cooling tower for heat dissipation and a heat source tower for heat absorption.
The technical scheme adopted by the invention for solving the technical problems is as follows: the wind direction adjusting mechanism comprises an air duct, an air guide pipe, a circular guide rail, a direction rotating wheel, a servo motor driving wheel, a wind direction detector and a controller, wherein the air duct is arranged on the tower body, the air duct is arranged at the top of the tower body, the circular guide rail is arranged at the upper end of the air duct, the air guide pipe is sleeved in the air duct, the direction rotating wheel is arranged on the air guide pipe and is matched with the circular guide rail through a rolling wheel, the servo motor driving wheel is connected with the servo motor through a servo motor rotating shaft, the controller controls the servo motor to operate through a detection signal of the wind direction detector, the servo motor drives the servo motor driving wheel to rotate through the servo motor rotating shaft, the direction rotating wheel realizes driven under the rotation of the servo motor driving wheel, and the air guide pipe realizes horizontal two-dimensional rotation along the circular guide rail through the driven of, thereby realizing wind direction adjustment.
Preferably, from last feed liquor pipe, fender liquid device, falling liquid film device, filler device and the tray of being equipped with in proper order down in the tower body, the liquid of feed liquor pipe flows into the filler device through falling liquid film device, accomplishes heat exchange through the back flow on the tray again, the tower body both sides all are equipped with the air intake, air intake department is equipped with air inlet device.
Preferably, the liquid blocking device is a liquid blocking plate, and the air inlet device is a shutter or a grille.
Preferably, the falling film device comprises an outer shell and a plurality of water drainage grooves formed in the bottom of the outer shell, the filling device comprises a filling support and a filling material, the filling material is arranged on the filling support, the filling support is arranged at the top of the liquid holding tray, the filling material at the top end is embedded into the water drainage grooves of the falling film device, and the filling material is preferably a polyester filling material.
Preferably, the tray is connected to a dilute antifreeze overflow accumulation tank through an overflow pipe arranged on the tray, a liquid level controller is arranged in the dilute antifreeze overflow accumulation tank, and a dilute antifreeze outlet pipe arranged at the bottom of the antifreeze overflow accumulation tank is connected with an antifreeze concentration device.
Preferably, an axial flow fan is arranged in the air duct and connected with an axial flow fan driving mechanism, and the axial flow fan driving mechanism is a water turbine driving mechanism or a spiral umbrella-shaped gear driving mechanism.
Preferably, the water turbine driving mechanism comprises a water turbine and a gearbox, one side of the water turbine is connected with the liquid inlet pipe, an output shaft of the water turbine is connected with the gearbox, and an output shaft of the gearbox is connected with the axial flow fan.
Preferably, the spiral bevel gear driving mechanism comprises a long shaft, a spiral bevel gear box and a spiral bevel gear transmission motor, the spiral bevel gear transmission motor is connected with a kinetic energy input shaft of the spiral bevel gear box through the long shaft, and a kinetic energy output shaft of the spiral bevel gear box is connected with the axial flow fan.
Preferably, the direction rotating wheel is connected with a servo motor driving wheel through a driving mechanism.
Preferably, drive mechanism is the driving rope device, the driving rope device includes the fixed ear of driving rope and several, and the fixed ear of several is located on the direction swiveling wheel, the driving rope winding is on the servo motor drive wheel, and the driving rope both ends link to each other with fixed ear.
Preferably, the direction rotating wheel is provided with a positioning device, and the positioning device is a positioning bracket or a clamping groove and can prevent the air guide pipe from being blown away by wind; the spiral bevel gear transmission motor and the servo motor are both arranged on the outer side of the air guide pipe back to the air outlet, so that the air guide pipe is prevented from being invaded by spray of anti-freezing solution; the air guide pipe is provided with a silencing device, so that noise pollution can be eliminated; the air guide pipe adopts a folding design mode.
Compared with the prior art, the invention has the following beneficial effects:
1. the direction of the air guide pipe is automatically adjusted through the air direction adjusting structure and is always consistent with the direction of natural wind, so that rain and snow are prevented from falling into a solution in the tower body, meanwhile, the anti-freezing solution is prevented from flying to corrode related equipment, natural wind can be guided through the air guide pipe and the natural wind, the natural wind and wind generated by the axial flow fan are prevented from being mutually offset to play a role of negative energy, the natural wind is fully utilized to increase the wind quantity, and the purpose of saving electric energy is achieved;
2. the invention selects the hydraulic turbine to drive the axial fan to rotate, so as to solve the waste of surplus energy of a circulating pump of a heat exchange tower, and simultaneously avoid the corrosion of an anti-freezing solution on a motor, the scheme is different from the prior hydrodynamic cooling tower, the prior hydrodynamic cooling tower directly uses the hydraulic turbine to drive the axial fan blades to rotate, which can cause the problem of insufficient air volume due to insufficient blade rotating speed, and the phenomenon of insufficient heat source can occur, the invention adopts the hydraulic turbine to drive a gear box to rotate, and then the gear box drives the axial fan blades to rotate, the gear box plays a role of accelerating, so as to save electric energy, the prior axial fan is connected with the hydraulic turbine and the gear box and is supported on a liquid inlet pipe, the structure is stable, the shaft of the hydraulic turbine is directly connected with the shaft of the gear box, and the output shaft of the gear box is directly connected, resonance is basically not existed, so that noise caused by resonance is eliminated;
3. the spiral bevel gear driving structure is adopted to drive the axial flow fan to rotate, so that the motor can be prevented from being influenced by anti-freezing solution, the spiral bevel gear is high in transmission efficiency, stable in transmission ratio, large in arc overlapping coefficient, high in bearing capacity, wear-resistant and long in service life;
4. according to the falling film device, the polyester filler at the top end is inserted into the depression of the water draining groove in the falling film device in a nesting mode, the polyester filler connected with the water draining groove of the falling film device is directly contacted with water or anti-freezing solution, the water or the anti-freezing solution can directly fall along the polyester filler sheet, and directly enter the liquid tray at the lower end of the polyester filler under the conditions of surface tension, liquid self-gravity and fluid pressure to complete the circulation process of heat exchange with air, so that splashing spray is not generated, and the consumption of water resources is saved;
5. according to the invention, the liquid level controller is arranged in the dilute anti-freezing solution overflow accumulation tank, so that the concentration of the current anti-freezing solution is judged and known according to the liquid level, and corresponding operation procedures such as alarming, emergency shutdown, addition of concentrated anti-freezing solution or start of concentrated anti-freezing solution are implemented according to the concentration.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of the present invention in which a turbine is used to drive an axial fan;
FIG. 2 is a schematic top view of the wind direction adjusting device of the present invention;
FIG. 3 is a schematic sectional view of the wind direction adjusting apparatus of the present invention in a front view;
fig. 4 is a schematic cross-sectional view of a falling film apparatus of the present invention;
FIG. 5 is a schematic structural diagram of another preferred mode of the present invention in which the axial flow fan is driven by a helical bevel gear.
In the figure, 1, an air guide pipe; 2. a servo motor transmission wheel; 3. a liquid blocking device; 4. a falling film device; 5. a filler; 6. an air inlet; 7. a liquid tray; 8. a dilute antifreeze overflow accumulation tank; 9. an overflow pipe; 10. a liquid inlet pipe; 11. an air duct; 12. a circular guide rail; 13. a direction rotation wheel; 14. a drive rope; 15. a rolling wheel; 16. a helical bevel gear drive motor; 17. a helical bevel gear box; 18. a return pipe; 19. a dilute antifreeze outlet pipe; 20. a water turbine; 21. a gearbox; 22. a liquid level controller; 1.1, an air outlet; 4.1, a water drainage tank; 13.1, fixing the ear.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein exemplary embodiments and descriptions of the invention are provided to illustrate the invention, but not to limit the invention.
A heat exchange tower capable of adjusting the direction of an air outlet comprises a tower body and a wind direction adjusting mechanism arranged on the tower body, wherein the wind direction adjusting mechanism comprises an air duct 11, an air guide pipe 1, a circular guide rail 12, a direction rotating wheel 13, a servo motor driving wheel 2, a wind direction detector and a controller, the air duct 11 is arranged at the top of the tower body, the circular guide rail 12 is arranged at the upper end of the air duct 11, the air guide pipe 1 is sleeved in the air duct 11, the direction rotating wheel 13 is arranged on the air guide pipe 1, the direction rotating wheel 13 is matched with the circular guide rail 12 through a rolling wheel 15, the servo motor driving wheel 2 is connected with the servo motor through a servo motor rotating shaft, the controller controls the servo motor to operate through a detection signal of the wind direction detector, the servo motor drives the servo motor driving wheel 2 to rotate through the servo motor rotating shaft, the direction rotating wheel 13 is driven under the rotation of the servo motor driving wheel 2, the, thereby realizing wind direction adjustment.
From last feed liquor pipe 10, fender liquid device 3, falling liquid film device 4, filler device and tray 7 of being equipped with down in the tower body, the liquid of feed liquor pipe 10 flows into the filler device through falling liquid film device 4, accomplishes heat exchange through the back flow 18 on the tray 7 again, and the tower body both sides all are equipped with air intake 6, air intake department is equipped with air inlet device.
The liquid blocking device is preferably a liquid blocking plate, and the air inlet device is preferably a shutter or a grille.
The falling film device 4 comprises a shell and a plurality of water drainage grooves 4.1 arranged at the bottom of the shell, the filler device comprises a filler support and a filler 5, the filler 5 is arranged on the filler support, the filler support is arranged at the top of the liquid tray 7, the filler 5 at the top end is embedded into the water drainage grooves 4.1 of the falling film device 4, and the filler is preferably polyester filler.
The tray 7 is connected to a dilute anti-freezing solution overflow accumulation box 8 through an overflow pipe 9 arranged on the tray 7, a liquid level controller 22 is arranged in the dilute anti-freezing solution overflow accumulation box 8, and a dilute anti-freezing solution outlet pipe 19 is arranged at the bottom of the anti-freezing solution overflow accumulation box 8 and connected with an anti-freezing solution concentration device.
An axial flow fan is arranged in the air duct 11 and is connected with an axial flow fan driving mechanism, and the axial flow fan driving mechanism is a water turbine driving mechanism or a spiral umbrella-shaped gear driving mechanism.
The water turbine driving mechanism comprises a water turbine 20 and a gearbox 21, one side of the water turbine 20 is connected with the liquid inlet pipe 10, an output shaft of the water turbine 20 is connected with the gearbox 21, and an output shaft of the gearbox 21 is connected with the axial flow fan.
The spiral bevel gear driving mechanism comprises a long shaft, a spiral bevel gear box 17 and a spiral bevel gear driving motor 16, the spiral bevel gear driving motor 16 is connected with a kinetic energy input shaft of the spiral bevel gear box 17 through the long shaft, and a kinetic energy output shaft of the spiral bevel gear box 17 is connected with the axial flow fan.
The direction rotating wheel 13 is connected with a driving wheel of the servo motor through a driving mechanism.
When drive mechanism is the driving rope device, the driving rope device includes driving rope 14 and several fixed ear 13.1, and the fixed ear 13.1 of several is located on direction swiveling wheel 13, and driving rope 14 twines on servo motor drive wheel 2, and driving rope 14 both ends link to each other with fixed ear 13.1.
The direction rotating wheel 13 is provided with a positioning device which is a positioning bracket or a clamping groove and can prevent the air guide pipe from being blown away by wind; the spiral bevel gear transmission motor 16 and the servo motor are both arranged on the outer side of the air guide pipe 1, which is opposite to the air outlet 1.1, so as to avoid invasion of antifreeze droplets; the air guide pipe 1 is provided with a silencing device, so that noise pollution can be eliminated; the air guide pipe adopts a folding design mode.
In the implementation process, liquid flows into the water-saving and fog-removing falling film device 4 from the liquid inlet pipe 10, then enters gaps of the filler 5 through the water discharge groove 4.1 at the bottom of the falling film device 4, the filler is preferably polyester filler, then enters the liquid supporting disc 7, and then the circulation process of fluid needing heat exchange with air is completed through the return pipe 18, the spraying condition does not exist in the whole circulation process, no fluid splashing spray occurs, water resources can be saved when the liquid is used as a cooling tower, and the anti-freezing liquid cannot float when the liquid is used as a heat source tower. And through the work of the axial fan in the air duct 11, the air can be driven to enter the tower from the grille or the shutter at the air inlet 6, pass through the gap of the filler 5 to exchange heat with the fluid film on the filler sheet, and then enter the air duct 11 through the liquid blocking device 3, wherein the liquid blocking device is preferably a liquid blocking plate, and finally is pressed into the air guide pipe 1 by the axial fan and is discharged into the atmosphere, so that the circulation of the air is realized. When the direction of the external natural wind changes, the wind direction tester can indicate the servo motor to work, the servo motor driving wheel 2 drives the driving rope 14 to wind and rotate, the driving rope 14 pulls the fixing lug 13.1 of the direction rotating wheel 13 to drive the wind guide pipe 1 to rotate, the round guide rail 12 can support the rolling wheel 15 arranged below the direction rotating wheel 13, the rolling wheel 15 slides on the round guide rail 12, and the angle of the direction rotating wheel 13 of the wind guide pipe 1 is adjusted to change, and the direction rotating wheel is always consistent with the wind direction of the natural wind, so that the natural wind can be led to enter the heat exchange tower together, the heat exchange wind quantity can be increased, the power of the fan motor is saved, the wind quantity is not weakened, if the wind direction of the natural wind is opposite to the wind direction of the fan, a part of the wind quantity of the fan can be counteracted, the heat exchange effect can be influenced, and the temperature of the antifreeze can be accelerated to move, the concentration cost of the antifreeze solution is increased, and the evaporator of the heat pump unit is easy to freeze.
In order to prevent the air guide pipe from being blown by natural wind and swayed, a section of cylinder is further inserted into the air duct 11 at the lower part of the rotating wheel of the air guide pipe, and a positioning bracket or a clamping groove fixing device can be further arranged between the direction rotating wheel and the circular guide rail, which will not be described in detail herein.
Certainly, the wind direction rotating wheel 13 can also adopt an occlusion mode to be mutually transmitted with the servo motor driving wheel 2, the servo motor can also adjust the direction of the air outlet 1.1 of the air guide pipe 1 through the action of friction force or the occlusion of gears during working, the direction consistency with natural wind can be always kept, a shutter is not required to be arranged at the outlet of the air guide pipe 1 to shield rain and snow, the existence of wind outlet resistance is eliminated, meanwhile, the wind direction rotating wheel can also play a role in leading the natural wind to enter the tower body to improve the heat exchange air quantity, and the effects of energy conservation and efficiency improvement can be achieved.
As shown in fig. 1, which is an embodiment of the present invention, liquid flows into a water turbine 20 through a water inlet pipe 10 to push a turbine of the water turbine to rotate, and an output shaft of the water turbine 20 is driven to rotate, and an output shaft of a gearbox 21 is further driven to rotate, so that axial flow fan blades are driven to rotate, air flows into gaps of a filler 5 from a grid or a louver of an air inlet 6, heat exchange is sufficiently performed with liquid fluid, if the axial flow fan blades are used as a cooling tower, the liquid is evaporated under the action of pressure difference, and evaporated steam sweeps over a liquid blocking device 3, is introduced into an air guide pipe 1 by the axial flow fan, and is then blown into the atmosphere.
It is noted that the outer edge of the direction rotating wheel 12 is covered by rubber material, or chain, or adjusting gear, etc., and the servo motor driving wheel 2 is wound by driving rope, or corresponding structural material is used to drive by friction.
As shown in fig. 5, which is another embodiment of the present invention, the method for adjusting the direction of the air duct 1 is the same as that of embodiment 1, the axial fan is in the air duct 11, the shaft of the axial fan is connected to the kinetic energy output shaft of the spiral bevel gear box 17, the kinetic energy input shaft of the spiral bevel gear box 17 is connected to the long shaft of the spiral bevel gear transmission motor 16, the spiral bevel gear box 17 can also play a role in reducing the speed, when air enters the tower body from the air inlet 6, then passes through the falling film device 4 and enters the gap of the packing 5, the packing is preferably polyester packing, can fully exchange heat with the liquid on the surface of the falling film evaporation polyester packing, water evaporates under the action of relative negative pressure, takes away latent heat of cooling water, is obviously taken away by the air, enters the air duct 1 through the liquid blocking device 3, and finally is discharged to the. If the liquid fluid is used as a heat source tower, the liquid fluid is antifreeze, because the temperature of the antifreeze is lower than the temperature of ambient air, the antifreeze can absorb sensible heat of the air and latent heat of water vapor in the air, so that the water vapor enters the antifreeze solution, the concentration of the antifreeze is constantly diluted, when the temperature reaches the freezing point, the antifreeze does not flow any more and cannot exchange heat with the air, and more seriously, a frozen pipe can also appear, so that the economic loss of the heat exchanger is caused. Therefore, in the invention, a dilute antifreeze solution overflow accumulation box 8 is arranged in a heat exchange tower, when antifreeze solution enters a gap of a polyester packing layer to absorb water vapor in air, the temperature of the antifreeze solution is increased, the quality of the solution is correspondingly increased, the antifreeze solution flows into the dilute antifreeze solution overflow accumulation box 8 through an overflow pipe 9 of a liquid supporting disc 7 in the tower, when the liquid level of the solution flowing into the dilute antifreeze solution overflow accumulation box 8 reaches a certain height, the fact that the antifreeze solution is diluted to a certain degree can be indicated, the concentration of the solution and the temperature away from the freezing point can be determined, and a liquid level controller 22 can send an instruction, so that related equipment is controlled to work correspondingly, or a heat source tower heat pump unit is instructed to stop emergently, or concentrated antifreeze solution is added, or concentrated antifreeze solution starts to work, and the like. And when the overflowed dilute antifreeze liquid reaches the set height, the overflow dilute antifreeze liquid is conveyed to the antifreeze liquid concentration device by the pump through the dilute antifreeze liquid outlet pipe 19 for concentration.
The patent of the present invention is not limited to the above embodiments, and there are many embodiments derived from the adjustable direction of the air guiding duct, which are not described herein, such as: the motor of the axial flow fan adopts a belt pulley or a gear box to be directly connected with a rotating shaft of the axial flow fan in the air duct, and only the motor shell is coated with anticorrosive paint or a protective shielding protective cover and the like are added. Although not shown in detail, it is not intended to include any filler holders, tower holders, etc., but is merely described as surrounding the core of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a heat exchange tower of adjustable air outlet direction which characterized in that: the wind direction adjusting mechanism comprises a tower body and a wind direction adjusting mechanism arranged on the tower body, the wind direction adjusting mechanism comprises an air duct (11), an air guide pipe (1), a circular guide rail (12), a direction rotating wheel (13), a servo motor driving wheel (2), a wind direction detector and a controller, the air duct (11) is arranged at the top of the tower body, the circular guide rail (12) is arranged at the upper end of the air duct (11), the air guide pipe (1) is sleeved in the air duct (11), the direction rotating wheel (13) is arranged on the air guide pipe (1), the direction rotating wheel (13) is matched with the circular guide rail (12) through a rolling wheel (15), the servo motor driving wheel (2) is connected with the servo motor through a servo motor rotating shaft, the controller controls the servo motor to operate through a detection signal of the wind direction detector, and the servo motor drives the servo motor driving wheel (2), the direction rotating wheel (13) is driven under the rotation of the servo motor driving wheel (2), and the air guide pipe (1) rotates horizontally in two dimensions along the circular guide rail (12) through the driven direction rotating wheel (13), so that the wind direction is adjusted.
2. The heat exchange tower of claim 1, wherein the direction of the air outlet is adjustable by: be equipped with feed liquor pipe (10), fender liquid device (3), falling liquid film device (4), filler device and tray (7) down in proper order from last in the tower body, the liquid of feed liquor pipe (10) flows into the filler device through falling liquid film device (4), accomplishes heat exchange through back flow (18) on tray (7) again, the tower body both sides all are equipped with air intake (6), air intake (6) department is equipped with air inlet unit.
3. The heat exchange tower of claim 2, wherein the direction of the air outlet is adjustable by: falling liquid film device (4) include the shell and locate several sluicing groove (4.1) of shell bottom, the filler device is including filler support and filler (5), filler (5) are located on the filler support, the filler support is located tray (7) top, and filler (5) embedding on top in the sluicing groove (4.1) of falling liquid film device (4).
4. The heat exchange tower of claim 2, wherein the direction of the air outlet is adjustable by: the tray (7) is connected to the dilute anti-freezing solution overflow accumulation box (8) through an overflow pipe (9) arranged on the tray (7), a liquid level controller (22) is arranged in the dilute anti-freezing solution overflow accumulation box (8), and a dilute anti-freezing solution outlet pipe (19) is arranged at the bottom of the anti-freezing solution overflow accumulation box and connected with an anti-freezing solution concentration device.
5. The heat exchange tower of claim 4, wherein the direction of the air outlet is adjustable by: an axial flow fan is arranged in the air duct (11), the axial flow fan is connected with an axial flow fan driving mechanism, and the axial flow fan driving mechanism is a water turbine driving mechanism or a spiral umbrella-shaped gear driving mechanism.
6. The heat exchange tower of claim 5, wherein the direction of the air outlet is adjustable by: the water turbine driving mechanism comprises a water turbine (20) and a gearbox (21), one side of the water turbine (20) is connected with the liquid inlet pipe (10), an output shaft of the water turbine (20) is connected with the gearbox (21), and an output shaft of the gearbox (21) is connected with the axial flow fan.
7. The heat exchange tower of claim 5, wherein the direction of the air outlet is adjustable by: the spiral bevel gear driving mechanism comprises a long shaft, a spiral bevel gear box (17) and a spiral bevel gear driving motor (16), the spiral bevel gear driving motor (16) is connected with a kinetic energy input shaft of the spiral bevel gear box through the long shaft, and a kinetic energy output shaft of the spiral bevel gear box (17) is connected with the axial flow fan.
8. The heat exchange tower of claim 1, wherein the direction of the air outlet is adjustable by: the direction rotating wheel (13) is connected with the servo motor driving wheel (2) through a driving mechanism.
9. The heat exchange tower of claim 8, wherein the direction of the air outlet is adjustable by: the transmission mechanism is a transmission rope device, the transmission rope device comprises a transmission rope (14) and a plurality of fixing lugs (13.1), the fixing lugs (13.1) of the plurality are arranged on the direction rotating wheel (13), the transmission rope (14) is wound on the servo motor transmission wheel (2), and two ends of the transmission rope (14) are connected with the fixing lugs (13.1).
10. The heat exchange tower of claim 1, wherein the direction of the air outlet is adjustable by: the direction rotating wheel is provided with a positioning device which is a positioning bracket or a clamping groove; the spiral bevel gear transmission motor (16) and the servo motor are both arranged on the outer side of the air guide pipe (1) back to the air outlet (1.1); the air guide pipe is provided with a silencing device; the air guide pipe adopts a folding design mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110149632.4A CN112797816A (en) | 2021-02-03 | 2021-02-03 | Heat exchange tower capable of adjusting direction of air outlet |
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| CN202110149632.4A CN112797816A (en) | 2021-02-03 | 2021-02-03 | Heat exchange tower capable of adjusting direction of air outlet |
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