The utility model content
The purpose of this utility model is to provide a kind of forced enclosed evaporative cooling cold water air conditioner, in air precooler, without overfire air fan and water circulating pump, has reduced units consumption; Adopt forced air-supply simultaneously, guaranteed the unit air pressure, further improve efficiency of damp and hot exchanging.
The technical scheme that the utility model adopts is, a kind of forced enclosed evaporative cooling cold water air conditioner, include machine unit shell, the top of machine unit shell one sidewall is provided with air inlet, be disposed with centrifugal blower, air precooler in machine unit shell and with the direct evaporative cooler of enclosed cooling coil, the top of centrifugal blower has been horizontally disposed with air cleaner near the air inlet place, air precooler and all be provided with exhaust outlet with the corresponding machine unit shell of the direct evaporative cooler of enclosed cooling coil top.
Characteristics of the present utility model also are:
Air precooler includes tubular heat exchange device and the air jet system be set up in parallel, tubular heat exchange device includes many horizontally disposed heat exchanger tubes, the same end of many heat exchanger tubes is connected with the outlet airduct of centrifugal blower, the top of tubular heat exchange device is disposed with heat transfer zone, filler a and water fender a, be symmetrically arranged with respectively a drainage plate near both sides in heat transfer zone, the bottom of tubular heat exchange device is disposed with filler c, air channel and cyclic water tank b, on the corresponding machine unit shell sidewall in relative both sides, air channel, respectively is provided with an overfiren air port.
Air jet system includes horizontally disposed convergent increaser, the convergent increaser is parallel with tubular heat exchange device, one end of convergent increaser is connected with the outlet airduct of centrifugal blower, the other end of convergent increaser vertically is provided with divergent nozzle, divergent nozzle is arranged in heat transfer zone, the bottom spaced and parallel of convergent increaser is connected with many pipette, and the lower end of many pipette is arranged in cyclic water tank b.
Direct evaporative cooler with the enclosed cooling coil includes filler b, the top of filler b is disposed with macromolecule enclosed cooling coil, water-locator and water fender b, the bottom of filler b is disposed with air channel and cyclic water tank a, cyclic water tank a is connected with water-locator by feed pipe, is provided with water circulating pump on feed pipe.
Filler b is the inverted trapezoidal filler.
Macromolecule enclosed cooling coil water side is connected with the air-conditioning system feed pipe, and macromolecule enclosed cooling coil water inlet end is connected with the air-conditioning system return pipe.
The beneficial effects of the utility model are:
1. evaporative cooling cold water air conditioner blower fan of the present utility model adopts forced air intake, the airflow pressure of employing centrifugal blower guarantees the operation of handpiece Water Chilling Units, avoided the complexity of axial flow blower display simultaneously, the relative axial flow blower airflow pressure of centrifugal blower has certain guarantee, range of application is wider, comparatively applicable to the evaporative cooling handpiece Water Chilling Units; Forced air intake can effectively meet unit blast demand, makes the wet exchange of heat of sky G&W obtain certain guarantee.
In evaporative cooling cold water air conditioner Air forecooler of the present utility model without overfire air fan and water circulating pump, when fore-cooling room's outer air, air is through the convergent increaser time, due to flow velocity and pressure equilibrium relation, the raising of air velocity, pipe throat pressure reduces, in throat, pipette is set, connect cyclic water tank, because throat's pressure reduces, recirculated water in cyclic water tank can be drawn in the convergent increaser, through divergent nozzle, spray, the air of ejection and water drive the operation of surrounding air at a high speed, carrying out kinetic energy in heat exchange changes and turns, outdoor auxiliary air is incorporated into to handpiece Water Chilling Units inside, the secondary exhausting machine can be set, utilize the self-priming water spray of blower pressure simultaneously, reduce the energy consumption of evaporative cooling handpiece Water Chilling Units.
3. adopt the enclosed coil pipe of macromolecular material in evaporative cooling cold water air conditioner of the present utility model, whole handpiece Water Chilling Units is closed type structure, when guaranteeing heat transfer effect, has reduced the cost of enclosed evaporative cooling handpiece Water Chilling Units, also can guarantee the end water supply quality; Make whole handpiece Water Chilling Units only adopt a centrifugal blower and a water circulating pump, unit power consumption original paper is less; Reasonable arrangement centrifugal blower position, adopt forced, utilize recirculated water to carry out fore-cooling room's outer air through air precooler, again by tube type indirect evaporative cooler and the further cools outdoor air of filler, the wet exchange of the outer trickle heat of air after precooling and macromolecule cooling coil pipe carrys out medium in cooling tube, improve enclosed coil heat exchange effect, be conducive to the cooling of the interior working media of cooling coil, reach more satisfied outlet effect.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Evaporative cooling cold water air conditioner of the present utility model, its structure as shown in Figure 1, include machine unit shell, the top of machine unit shell one sidewall is provided with air inlet 21, be disposed with centrifugal blower 5, air precooler in machine unit shell and with the direct evaporative cooler of enclosed cooling coil, the top of centrifugal blower 5 has been horizontally disposed with air cleaner 6 near air inlet 21 places, air precooler and all be provided with exhaust outlet with the corresponding machine unit shell of the direct evaporative cooler of enclosed cooling coil top.
Air precooler, its structure as shown in Figure 1, include the tubular heat exchange device 17 and the air jet system that are set up in parallel, tubular heat exchange device 17 includes many horizontally disposed heat exchanger tubes, the same end of many heat exchanger tubes is connected with the outlet airduct 23 of centrifugal blower 5, the top of tubular heat exchange device 17 is disposed with heat transfer zone 22, filler a11 and water fender a10, heat transfer zone 22 is interior is symmetrically arranged with respectively a drainage plate 9 near both sides, the bottom of tubular heat exchange device 17 is disposed with filler c18, air channel and cyclic water tank b2, respectively be provided with an overfiren air port 3 on the corresponding machine unit shell sidewall in relative both sides, air channel.
Air jet system, include horizontally disposed convergent increaser 7, convergent increaser 7 is parallel with tubular heat exchange device 17, one end of convergent increaser 7 is connected with the outlet airduct 23 of centrifugal blower 5, the other end of convergent increaser 7 vertically is provided with divergent nozzle 8, divergent nozzle 8 is arranged in heat transfer zone 22, and the bottom spaced and parallel of convergent increaser 7 is connected with many pipette 4, and the lower end of many pipette 4 is arranged in cyclic water tank b2.
Direct evaporative cooler with the enclosed cooling coil, as shown in Figures 1 and 2, include filler b15, the top of filler b15 is disposed with macromolecule enclosed cooling coil 14, water-locator 13 and water fender b12, the bottom of filler b15 is disposed with air channel and cyclic water tank a1, cyclic water tank a1 is connected with water-locator 13 by feed pipe, is provided with water circulating pump 16 on feed pipe.Wherein, filler b15 is inverted trapezoidal; Macromolecule enclosed cooling coil 14 water sides are connected with air-conditioning system feed pipe 19, and macromolecule enclosed cooling coil 14 water inlet ends are connected with air-conditioning system return pipe 20.
Evaporative cooling cold water air conditioner of the present utility model has adopted pipette 4, convergent increaser 7 and tube type indirect evaporative cooler in air precooler, rising in convergent increaser 7 throats due to wind speed, pressure decreased, water in cyclic water tank b2 is drawn in convergent increaser 7, along with the air ejection; Carry out heat exchange in heat transfer zone 22, trickle after heat exchange pours on the heat exchanger tube of tubular heat exchange device 17, carry out the wet exchange of heat cooling heat transferring inner air tube outside heat exchanger tube with air, trickle is fallen in filler c18 again and is exchanged with air heat is wet, finally falls back in cyclic water tank b2.
Evaporative cooling cold water air conditioner of the present utility model is that outdoor new wind is sucked in machine unit shell by centrifugal blower 5, be ejected into heat transfer zone 22 on a part is backward through convergent increaser 7, because convergent increaser 7 throat's wind speed improve, pressure decreased, by the pipette 4 be connected with throat, the recirculated water in cyclic water tank b2 is drawn in convergent increaser 7, with upwards ejection of air, utilize the empty G&W of ejection at a high speed to drive flowing of surrounding air, carry out the kinetic energy conversion in the wet exchange of heat, outdoor air is drawn in the air precooler in machine unit shell through overfiren air port 3, carry out the wet exchange of heat with the water droplet fallen, another part outdoor air is pressed in the heat exchanger tube of tubular heat exchange device 17 by centrifugal blower 5, the clammy but precooling such as carry out, air after precooling enters into filler b15, carry out the wet exchange of heat with trickle, pass through again macromolecule enclosed cooling coil 14, carry out the wet exchange of heat with trickle and carry out cooling macromolecule enclosed cooling coil 14 interior media outside macromolecule enclosed cooling coil 14, after crossing water fender b12, send the evaporative cooling handpiece Water Chilling Units.
The course of work of the utility model evaporative cooling cold water air conditioner is:
1. wind system:
A. air precooler air a:
Outdoor new wind is pressed in evaporative cooling handpiece Water Chilling Units air precooler through air cleaner 6 by centrifugal blower 5, the air of a part is through in the heat exchanger tube of tubular heat exchange device 17, another part air is through the convergent increaser 7 on tubular heat exchange device 17 tops, convergent increaser 7 upwards is ejected in heat transfer zone 22 through divergent nozzle 8, with water, carries out discharging machine unit shell after the wet exchange of heat;
B. air precooling section air b:
Impact due to centrifugal blower 5 high blast, upwards spray air and water at divergent nozzle 8, the high-speed air of ejection moves upward together with water drive surrounding air simultaneously, carry out at the volley the exchange of kinetic energy conversion and carry out the wet exchange of heat, now outdoor air enters in air precooler through the overfiren air port 3 of machine unit shell both sides, carry out the wet exchange of heat precooling on filler c18 with trickle, air after precooling passes through outside the heat exchanger tube of tubular heat exchange device 17 again, carry out the wet exchange of heat with trickle and carry out the cooling heat transferring inner air tube outside heat exchanger tube, finally along with the air of divergent nozzle 8 ejections is discharged machine unit shell after water fender a10,
C. macromolecule enclosed coil pipe air:
Air after tubular heat exchange device 17 precoolings enters into the filler b15 of macromolecule enclosed cooling coil 14 bottoms, carry out the cooling of the wet exchange of heat constant enthalpy on filler b15 with trickle, air after the constant enthalpy cooling enters into outside macromolecule enclosed cooling coil 14, carry out the wet exchange of heat with trickle, cooling medium in macromolecule enclosed cooling coil 14, the air after the wet exchange of after heat is discharged the evaporative cooling handpiece Water Chilling Units after water fender b12;
2. water system:
(1) recirculated water course of work a:
The air pressure gone out due to the high blast of centrifugal blower 5 is through convergent increaser 7, throat's air velocity raises, the corresponding reduction of pressure, again through divergent nozzle 8 ejections, throat's pressure at convergent increaser 7 reduces, can make the water in cyclic water tank b2 be drawn in convergent increaser 7, along with swiftly flowing air is ejected into heat transfer zone 22 through divergent nozzle 8, after the air of ejection and water carry out the wet exchange of heat, with Action of Gravity Field fall the heat exchanger tube of tubular heat exchange device 17 outer after, carry out the wet exchange of heat with air, fall back to again in filler c18, further with the wet exchange of air heat, finally fall back in cyclic water tank b2,
(2) recirculated water course of work b:
Recirculated water in cyclic water tank a1 is delivered to water-locator 13 through water circulating pump 16, and under being drenched by water-locator 13, trickle carries out the hot wet air that exchanges in cooling pipe heat exchanger 17 with the air through air precooler, then after hot wet the exchange, falls back in cyclic water tank a1 in filler b15 with air.
(3) evaporative cooling handpiece Water Chilling Units is produced the high temperature cold water course of work:
Air-conditioning system return pipe 20 enters into macromolecule enclosed cooling coil 14 water inlet ends of enclosed evaporative cooling handpiece Water Chilling Units, carry out heat exchange with trickle and the air of the wet exchange of macromolecule enclosed cooling coil 14 outer heat, after wet cooling, through air-conditioning system feed pipe 19, by water supply pump, deliver to air conditioning terminal.
Evaporative cooling cold water air conditioner of the present utility model, through centrifugal blower, outdoor air is sucked to unit, wider range of centrifugal blower blast air quantity, arrange comparatively easy, the centrifugal blower outlet is connected with the convergent increaser with tubular heat exchange device, outdoor air is pressed in tubular heat exchange device and convergent increaser by centrifugal blower by after filtering, and portion of air enters air in the convergent increaser and carries recirculated water and sprayed by divergent nozzle, with trickle, carries out discharge unit after the wet exchange of heat; Another part air enters into the interior precooling of heat exchanger tube of tubular heat exchange device, etc. but clammy, enter into filler after air after precooling, carry out the wet exchange of heat in filler with trickle, the constant enthalpy cooling, by macromolecule enclosed cooling coil, with the medium in the wet exchange of the outer trickle heat of pipe cooling coil, finally discharge unit again.Enclosed evaporative cooling handpiece Water Chilling Units arranges secondary air inlet in unit both sides, air precooler cyclic water tank top, utilize through the air of divergent nozzle ejection and kinetic energy and the surrounding air exchange of kinetic energy of water, drive gas flow, make outdoor new wind enter into evaporative cooling handpiece Water Chilling Units air precooler through overfiren air port, carry out discharging unit after the wet exchange of heat with trickle.
Evaporative cooling cold water air conditioner of the present utility model improves existing some shortcomings part in prior art, it can more effectively be played a role in actual applications, the high Action of Wind pressure of Wind Volume of application centrifugal blower, form forced airflow pattern, guarantee unit air and water heat transfer effect, the advantage that simultaneously there is arrangement convenience, adopt the interior kinetic energy of airduct and the equilibrium relation of pressure, increase at air velocity the principle that pressure reduces, throat's connection suction hose at the convergent increaser communicates with cyclic water tank, reduction due to pressure, can make the water suck-back in cyclic water tank enter in pipeline, along with jet-impingement, go out, spouting empty G&W flow at high speed, drive flowing of surrounding air, exchange of kinetic energy occurs, outdoor air sucks unit by overfiren air port, carry out the wet exchange of heat with trickle, compare the form that tradition adopts overfire air fan, saved the energy consumption of overfire air fan, there is certain energy saving.The macromolecule enclosed cooling coil that adopts macromolecular material to make, in the situation that guarantee certain heat transfer effect, save the unit manufacturing cost, comparatively economical rationality, the compact conformation of whole evaporative cooling handpiece Water Chilling Units of while, rationally, closed type structure has certain guarantee to water quality to rule, area for some outdoor air inferior qualitys is applicable equally, has certain promotional value.