CN101907324A - Energy-saving device and energy-saving method for air conditioner outdoor unit - Google Patents

Energy-saving device and energy-saving method for air conditioner outdoor unit Download PDF

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Publication number
CN101907324A
CN101907324A CN 201010255556 CN201010255556A CN101907324A CN 101907324 A CN101907324 A CN 101907324A CN 201010255556 CN201010255556 CN 201010255556 CN 201010255556 A CN201010255556 A CN 201010255556A CN 101907324 A CN101907324 A CN 101907324A
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China
Prior art keywords
water
air
outdoor unit
fog generator
conditioner outdoor
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CN 201010255556
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Chinese (zh)
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CN101907324B (en
Inventor
黄文雄
孔小明
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华为技术有限公司
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Publication of CN101907324B publication Critical patent/CN101907324B/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/42Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger characterised by the use of the condensate, e.g. for enhanced cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46Component arrangements in separate outdoor units
    • F24F1/48Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
    • F24F1/50Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow with outlet air in upward direction

Abstract

The invention relates to an energy-saving device and an energy-saving method for an air conditioner outdoor unit, and the energy-saving device comprises a water mist generator, a water circulation system and a controller, wherein the water mist generator is arranged by being opposite to an air inlet of the air conditioner outdoor unit and used for carrying out atomization on water, further generating water mist and leading the generated water mist to enter into the air conditioner outdoor unit along external air flow; the water circulation system is connected with the water mist generator and an external water source and used for providing the water required for the atomization for the water mist generator; and the controller is connected with the water circulation system and used for controlling the working state of the water circulation system according to the temperature of the air inlet of a condenser of the air conditioner outdoor unit and the monitoring result of evaporation pressure of a refrigerant and realizing the production and the stopping of the water mist. The device of the embodiment of the invention adopts the water mist generator to cool the outdoor unit, thereby improving the spray effect; the device does not need an additional fan, thereby saving the cost; and the device can control the spraying time and further save the energy.

Description

Air conditioner outdoor machine energy saver and power-economizing method
Technical field
The present invention relates to the air conditioner energy saving technical field, particularly a kind of air conditioner outdoor machine energy saver and power-economizing method.
Background technology
Existing C O (Central office, central machine room)/DC (Data Centre, data center) machine room needs to install more air-conditioning and dispels the heat because equipment power dissipation density constantly rises violently, and refrigeration demand also increases day by day.Yet because the arrangement space limitation, air-conditioner outdoor unit is installed intensive, its arrangement pitch constantly reduces, and the problem of off-premises station " hot blast is crosstalked " often takes place, and causes air-conditioner outdoor unit air inlet gas flow temperature too high, have a strong impact on the performance of air conditioner refrigerating performance, be unfavorable for the refrigeration system energy-saving run.
And, because the design of part machine room is unreasonable, the off-premises station installing zone is often towards the south or the setting of being exposed to the west, off-premises station is exposed to the sun under the sun when causing torridity summer, air-conditioner outdoor unit air inlet gas flow temperature is too high, seriously reduced the radiating efficiency of off-premises station, indoor ICT (Information and Communication Technology, information and communication technology (ICT)) equipment operational reliability has been had a negative impact.
Fig. 1 is an existing air-conditioning system installation site schematic diagram, as shown in Figure 1, indoor host computer is connected with outdoor condenser, the condensing agent of outdoor condenser is constantly evaporation by airborne heat in the absorption chamber, indoor air temperature is reduced, and the air outlet by indoor host computer provide the air after the refrigeration.
Fig. 2 is a kind of air-conditioning heat dissipation system of available technology adopting, the prior art adopts following scheme, and air-conditioner outdoor unit air inlet gas flow temperature is too high, refrigerating efficiency low to solve, be unfavorable for saving the problem of refrigeration system energy consumption: increase a kind of latent heat transition energy saver at the condenser for outdoor unit of air conditioner air inlet, this device comprises evaporating wet curtain, booster fan and a pipe-line system.By pipe-line system water is carried the dewing curtain, utilize the principle of water evaporation heat absorption to reduce the air themperature of passing through this device, used water conservancy is drained with blow-off line.
As shown in Figure 2, this system specifically comprises with the lower part: air-cooled air conditioner main frame 1, condenser fan 2, air-cooled air conditioner main condenser 4, booster fan 5, water distributor 6, evaporating wet curtain 7, circulating water pipe 8, extraneous hot-air 9, tank 10, water pump 11, moisturizing float 12, connection support 13 and air intake district 14.Use this device can reduce by 6~8 ℃ of condenser for outdoor unit of air conditioner intake air temperatures, promote air conditioner refrigerating efficient, the purpose of saving its operation energy consumption thereby reach.
The inventor finds that in realizing process of the present invention there is following shortcoming in the scheme of prior art:
1) because this scheme has adopted wet curtain, significantly increases the gas-flow resistance of system, needed to increase blower fan and overcome this resistance, when increasing system's Material Cost (blower fan), also increased operating cost (the fan operation electricity charge);
2) because this scheme mouth spray is positioned at the evaporating wet curtain top, this extensive style spray mode can make a lot of water reality spray above the wet curtain, is unfavorable for the conserve water resource.
Summary of the invention
In order to solve the above-mentioned defective of prior art, the embodiment of the invention provides a kind of air conditioner outdoor machine energy saver and power-economizing method, the water smoke that this device adopts water fog generator to produce comes air-conditioner outdoor unit is lowered the temperature, promote outdoor machine spray effect, and control the generation of water smoke by monitoring intake air temperature and cold-producing medium evaporating pressure, further saved the energy.
On the one hand, the embodiment of the invention provides a kind of air conditioner outdoor machine energy saver, and described device comprises: water fog generator is oppositely arranged with the air inlet of air-conditioner outdoor unit, to the water generation water smoke that atomizes, make the water smoke that generates enter described air-conditioner outdoor unit with extraneous air-flow; Water circulation system connects described water fog generator and extraneous water source, for described water fog generator provides atomizing required water; Controller connects described water circulation system, according to the monitoring result of described condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure, controls the duty of described water circulation system, the generation that realizes water smoke with stop.
On the other hand, the embodiment of the invention also provides a kind of power-economizing method of air-conditioner outdoor unit, and described method comprises: detect condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure; According to the monitoring result of condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure, control the duty of described water circulation system, the generation that realizes water smoke with stop; Described water circulation system is used to connect water fog generator and extraneous water source, for described water fog generator provides atomizing required water; The air inlet of described water fog generator and described air-conditioner outdoor unit is oppositely arranged, and to the water generation water smoke that atomizes, makes the water smoke that generates enter described air-conditioner outdoor unit with extraneous air-flow.
The device of the embodiment of the invention adopts water fog generator that off-premises station is lowered the temperature, and has improved the spray effect; Do not need extra blower fan, saved cost; Control the opportunity to spray, further saved the energy.
Description of drawings
Fig. 1 is an existing air-conditioning system installation site schematic diagram;
Fig. 2 is the existing air-conditioning heat dissipation system construction drawing that comprises this latent heat transition energy saver;
Fig. 3 is the functional schematic block diagram of embodiment of the invention air conditioner outdoor machine energy saver;
When Fig. 4 adopts horizontal installation when air-conditioner outdoor unit, the structure drawing of device of the embodiment of the invention;
When Fig. 5 adopts vertical installation when air-conditioner outdoor unit, the structure drawing of device of the embodiment of the invention;
Fig. 6 is the structure chart of the bilateral of the embodiment of the invention to spray formula water fog generator;
Fig. 6 a is the injection schematic diagram of bilateral to spray formula water fog generator;
Fig. 7 is the structure chart of the point-like injecting type water fog generator of the embodiment of the invention;
Fig. 7 a is the injection schematic diagram of point-like injecting type water fog generator;
Fig. 8 is the overall flow figure of the air conditioner outdoor machine power-economizing method of the embodiment of the invention.
The specific embodiment
The embodiment of the invention provides a kind of air conditioner outdoor machine energy saver and power-economizing method, this device adopts water fog generator to come off-premises station is sprayed, by monitoring to condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure, control water smoke takes place, reduce the condenser intake air temperature by water smoke, thereby improve air-conditioner outdoor unit heat dispersion under the hot environment, reach lifting air conditioner refrigerating efficient, the purpose of saving its operation energy consumption.
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of air conditioner outdoor machine energy saver, and Fig. 3 is the functional schematic block diagram of embodiment of the invention air conditioner outdoor machine energy saver.As shown in Figure 3, this device comprises:
Water fog generator 301 is oppositely arranged with the air inlet of air-conditioner outdoor unit, to the water generation water smoke that atomizes, makes the water smoke that generates enter air-conditioner outdoor unit with extraneous air-flow;
Water circulation system 302 connects water fog generator 301 and extraneous water source, for water fog generator 301 provides atomizing required water;
Controller 303 connects water circulation system 302, according to the monitoring result of condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure, the duty of control water circulation system 302, the generation that realizes water smoke with stop.
Particularly, this device also comprises: temperature detecting unit 304, be arranged at the condenser for outdoor unit of air conditioner air inlet, and be used to detect the temperature of air inlet; Pressure sensing cell 305 is arranged in the condenser of air-conditioner outdoor unit, is used to detect the cold-producing medium evaporating pressure.
Particularly, controller 303 also connects temperature detecting unit 304 and pressure sensing cell 305, as the temperature value T-T of temperature monitoring point H〉=0 or pressure value P-the P of pressure monitoring point H, start water pump at 〉=0 o'clock; Work as T-T H≤ T 0And P-P H≤ P 0The time, stop pump working; T wherein HBe design temperature, P HBe setting pressure, T 0Till degree of rising again, P 0Till back pressure power.
The typical case of present embodiment air conditioner outdoor machine energy saver should have scene to mainly contain following two kinds: air-conditioner outdoor unit adopts horizontal installation and air-conditioner outdoor unit to adopt vertical installation.Respectively the concrete structure of this device under these two kinds of mounting means is described in detail below.
1) air-conditioner outdoor unit adopts horizontal installation
When air-conditioner outdoor unit adopted horizontal installation, the apparatus structure of the embodiment of the invention as shown in Figure 4.Under this application scenarios, water fog generator and tank are positioned at the below of air-conditioner outdoor unit air inlet, and water fog generator is between air inlet and tank, and extraneous hot-air enters air-conditioner outdoor unit after by water fog generator.
As shown in Figure 4, the water circulation system of present embodiment comprises: tank, be arranged at the below of water fog generator, and connect extraneous water source, and collect the water droplet that seepage is got off on the outdoor condenser, realize water circulation use; Water pump connects tank, water fog generator and controller, accepts the control of controller, and the water in the tank is offered water fog generator.Alternatively, also comprise the moisturizing floating drum in the tank, be used to realize the automatic supply at extraneous water source, the operation principle of moisturizing floating drum and the cistern of family expenses are similar, and when water level descended, floating drum was opened inlet valve; After water level had reached certain height, inlet valve was closed.Because this technology originally as mature technology, is no longer launched to describe herein.
The operation principle of the device of present embodiment is: water fog generator links to each other with water circulation system, by water pump the water in the tank is delivered to water fog generator, and water fog generator makes water fogging then.Because air-conditioner outdoor unit carries the draft effect of blower fan system, near the water fog generator is negative pressuren zone, and water smoke enters off-premises station under the rolling action of air-flow, during through outdoor condenser, by the evaporation heat-absorbing action of water smoke, the condenser system of off-premises station is dispelled the heat.Adopt this water smoke evaporation mode can significantly reduce the temperature (about 8~12 ℃) of extraneous hot-air, thereby improve the heat dissipating state of air-conditioner outdoor unit, promote its refrigerating efficiency.
The tank of present embodiment links to each other with extraneous running water system, realizes the automatic supply of water resource by the moisturizing floating drum, and collects the water droplet that seepage is got off from the outdoor condenser, and is recycling.For guaranteeing in the spray water reflux course not can contaminant water trough inner water system, can lay one deck screen pack at water tank upper, and need carry out cleaned at regular intervals to water tank internal water system system and handle (as: every operation 700h throws once non-oxidizable cleaning agent 805A processing);
In order to reduce operating cost when guaranteeing the abundant high efficiency and heat radiation of off-premises station, regulation and control need become more meticulous to the running time of water pump.Because the radiating efficiency of off-premises station is subjected to the dual restriction of its air inlet gas flow temperature and cold-producing medium evaporating pressure, therefore the controller of present embodiment is by the EAT and the cold-producing medium evaporating pressure of monitoring air-conditioner outdoor unit, the water pump operation power consumption is saved in the real-time control that realization takes place water smoke.
2) air-conditioner outdoor unit adopts vertical installation
When air-conditioner outdoor unit adopted vertical installation, apparatus of the present invention mounting structure as shown in Figure 5.Under this application scenarios, water fog generator and tank are arranged in air-conditioner outdoor unit air inlet the place ahead, and extraneous hot-air enters air-conditioner outdoor unit after by water fog generator.Other structures are identical with horizontal installation, repeat no more herein.
Water fog generator is a key modules of the embodiment of the invention, and present embodiment provides two kinds of concrete implementations, and these two kinds of implementations can both be suitable for for aforesaid vertical mounting structure and bedroom mounting structure:
(a) bilateral is to the spray formula
As shown in Figure 6, by the bilateral at water fog generator the atomized water spray hole is set, each spray-hole is connected with water circulation system via aqueduct, realizes water smoke eruption is penetrated, and forms the water smoke heavy curtain on the water fog generator plane.Alternatively, littler in order to make water fog particle, can adopt tiny spray-hole to spray.Bilateral is that to the advantage of spray formula water fog generator water column collides formation fine water particle mutually, more help evaporative heat loss, therefore this structure can be when reducing air-flow and passing through water smoke heavy curtain resistance, strengthen the gasification heat absorption capacity of water smoke, significantly reduce the gas flow temperature of air-conditioner outdoor unit air inlet.Simultaneously, the aqueous vapor of atomizing can be carried by air more easily, and is delivered near the condenser of air-conditioner outdoor unit, improves the condenser radiating effect.With the vertical example that is installed as, Fig. 6 a is the injection schematic diagram of bilateral to spray formula water fog generator, and wherein the direction of arrow is the atomized water spray direction.
(b) point-like injecting type
As shown in Figure 7, by surface the atomized water spray mouth is set at water fog generator, each jet is connected with the circulating water line system through aqueduct, realizes the planar injection of vertical hemisphere of water smoke, forms the water smoke heavy curtain between water fog generator surface and air-conditioner outdoor unit air inlet.Alternatively, littler in order to make water fog particle, can adopt tiny spray-hole to spray.With bilateral spray formula water fog generator is compared, the advantage of point-like injecting type is the resistance that can reduce blower fan, and therefore, this structure is when reducing air-flow and passing through water smoke heavy curtain resistance, strengthen the gasification heat absorption capacity of water smoke, significantly reduce the gas flow temperature of air-conditioner outdoor unit air inlet.Simultaneously, the aqueous vapor of atomizing can be carried by air more easily, and is delivered near the condenser of air-conditioner outdoor unit, improves the condenser radiating effect.With the vertical example that is installed as, Fig. 7 a is the injection schematic diagram of point-like injecting type water fog generator, and wherein the direction of arrow is the atomized water spray direction.
Present embodiment also provides a kind of power-economizing method of air-conditioner outdoor unit, and Fig. 8 is the overall flow figure of this method, and as shown in Figure 8, this method comprises:
S801, detection condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure;
S802, according to the monitoring result of condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure, the duty of control water circulation system, the generation that realizes water smoke with stop; Wherein, water circulation system is used to connect water fog generator and extraneous water source, for water fog generator provides atomizing required water; The air inlet of water fog generator and air-conditioner outdoor unit is oppositely arranged, and to the water generation water smoke that atomizes, makes the water smoke that generates enter described air-conditioner outdoor unit with extraneous air-flow.
Particularly, S802 comprises: the monitoring result of obtaining condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure; When temperature value T-TH 〉=0 of temperature monitoring point or the pressure value P-PH of pressure monitoring point 〉=0, start the pump working of water circulation system; When T-TH≤T0 and P-PH≤P0, stop pump working; Wherein TH is a design temperature, and PH is a setting pressure, degree of rising again till the T0, back pressure power till the P0.
The apparatus and method of the embodiment of the invention can realize following useful technique effect:
1) this device adopts modularized design, and wide accommodation can be applicable to the reducing energy consumption of traditional Wind-cooling type air-conditioner outdoor unit;
2) these apparatus and method and do not need extra blower fan to controlling the opportunity of spray, have reduced the production cost and the operating cost of energy conserving system, promptly reduce TCO (Total Cost of Ownership, the total cost of ownership);
3) tank in this device can also be collected the water droplet that seepage is got off from the condenser, realizes the recycling of water, saves the water source;
4) these apparatus and method adopt the operational management technology that becomes more meticulous, promote outdoor machine spray effect, improving CRAC (Computer Room Air Conditioner, the computer room air-conditioning) COP (Coefficient of Performance, Energy Efficiency Ratio) time, saves the consumption of water resource;
5) structure of this device can reduce the installation constraint of air-conditioner outdoor unit energy conserving system, enlarges its range of application.
In sum, compare with traditional air-conditioner outdoor unit energy saver, the device of the embodiment of the invention has cost of investment (CapEx, Capital Expenditure) low, operating cost (OpEx, Operating Expense) is low, it is little to take up room, flexible arrangement, easy to operate, advantage such as effects of energy saving and emission reduction is remarkable.
The water fog generator of the embodiment of the invention can also be arranged near the exhaust outlet of CRAC off-premises station, absorb the thermal current energy that off-premises station is discharged by spraying, reducing the off-premises station temperature of outgoing air, when improving the off-premises station air draft to ambient influnence, steam after the heating can also be carried out recycling, as: civil area (wash one's hands, have a bath, laundry, hot water heating etc.), with the utilization ratio of further lifting energy.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above embodiment only in order to the technical scheme of the explanation embodiment of the invention, is not intended to limit; Although the embodiment of the invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the embodiment of the invention.

Claims (10)

1. an air conditioner outdoor machine energy saver is characterized in that, described device comprises:
Water fog generator is oppositely arranged with the air inlet of air-conditioner outdoor unit, to the water generation water smoke that atomizes, makes the water smoke that generates enter described air-conditioner outdoor unit with extraneous air-flow;
Water circulation system connects described water fog generator and extraneous water source, for described water fog generator provides atomizing required water;
Controller connects described water circulation system, according to the monitoring result of described condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure, controls the duty of described water circulation system, the generation that realizes water smoke with stop.
2. device according to claim 1 is characterized in that, described water fog generator comprises:
Be arranged at the spray-hole of described water fog generator bilateral, the outlet of bilateral spray-hole is oppositely arranged, and each spray-hole is connected with described water circulation system via aqueduct, realizes water smoke eruption is penetrated, and forms the water smoke heavy curtain on the water fog generator plane.
3. device according to claim 1, it is characterized in that, described water fog generator comprises: a plurality of atomized water spray mouths, each jet is connected with described water circulation system via aqueduct, realization water smoke with the planar injection of vertical hemisphere, forms the water smoke heavy curtain towards described air inlet between water fog generator surface and air-conditioner outdoor unit air inlet.
4. device according to claim 1 is characterized in that, described water circulation system comprises:
Tank is arranged at the below of described water fog generator, connects extraneous water source, and collects the water droplet that seepage is got off on the outdoor condenser, realizes water circulation use;
Water pump connects described tank, water fog generator and described controller, accepts the control of described controller, and the water in the described tank is offered described water fog generator.
5. device according to claim 1 is characterized in that, described device also comprises:
Temperature detecting unit is arranged at the condenser for outdoor unit of air conditioner air inlet, is used to detect the temperature of described air inlet;
Pressure sensing cell is arranged in the condenser of air-conditioner outdoor unit, is used to detect described cold-producing medium evaporating pressure;
Described controller also connects described temperature detecting unit and described pressure sensing cell, as the temperature value T-T of described detection H〉=0 or pressure value P-P of detecting H, start water pump at 〉=0 o'clock; Work as T-T H≤ T 0And P-P H≤ P 0The time, stop pump working; Wherein: T HBe design temperature, P HBe setting pressure, T 0Till degree of rising again, P 0Till back pressure power.
6. device according to claim 4 is characterized in that, when air-conditioner outdoor unit adopted horizontal installation, described water fog generator was positioned at the below of described air-conditioner outdoor unit air inlet.
7. device according to claim 4 is characterized in that, when air-conditioner outdoor unit adopted vertical installation, described water fog generator was positioned at the place ahead of described air-conditioner outdoor unit air inlet.
8. device according to claim 4 is characterized in that, also comprises the moisturizing floating drum in the described tank, is used to realize the automatic supply at extraneous water source.
9. the power-economizing method of an air-conditioner outdoor unit is characterized in that, described method comprises:
Detect condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure;
According to the monitoring result of condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure, the duty of control water circulation system, the generation that realizes water smoke with stop; Described water circulation system is used to connect water fog generator and extraneous water source, for described water fog generator provides atomizing required water; The air inlet of described water fog generator and described air-conditioner outdoor unit is oppositely arranged, and to the water generation water smoke that atomizes, makes the water smoke that generates enter described air-conditioner outdoor unit with extraneous air-flow.
10. method according to claim 9 is characterized in that, described monitoring result according to condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure is controlled the duty of described water circulation system, the generation that realizes water smoke with stop to comprise:
Obtain the monitoring result of condenser for outdoor unit of air conditioner intake air temperature and cold-producing medium evaporating pressure;
Temperature value T-T when monitoring H〉=0 or the monitoring pressure value P-P H〉=0 o'clock, the pump working of startup water circulation system; Work as T-T H≤ T 0And P-P H≤ P 0The time, stop described pump working; Wherein: T HBe design temperature, P HBe setting pressure, T 0Till degree of rising again, P 0Till back pressure power.
CN 201010255556 2010-08-16 2010-08-16 Energy-saving device and energy-saving method for air conditioner outdoor unit CN101907324B (en)

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PCT/CN2011/075044 WO2011137855A1 (en) 2010-08-16 2011-05-31 Energy-saving device for air conditioner outdoor unit and method thereof
US13/763,199 US20130139534A1 (en) 2010-08-16 2013-02-08 Energy-saving device for air conditioner outdoor unit and energy-saving method thereof

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