CN105318452A - Air conditioning outdoor unit and method for washing heat exchanger - Google Patents
Air conditioning outdoor unit and method for washing heat exchanger Download PDFInfo
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- CN105318452A CN105318452A CN201410380701.2A CN201410380701A CN105318452A CN 105318452 A CN105318452 A CN 105318452A CN 201410380701 A CN201410380701 A CN 201410380701A CN 105318452 A CN105318452 A CN 105318452A
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Abstract
The embodiment of the invention discloses an air conditioning outdoor unit and a method for washing a heat exchanger and relates to the field of washing of air conditioners, aiming at improving the washing quality of washing the heat exchanger while realizing the aim of automatically washing the heat exchanger, and avoiding secondary pollution caused by residual dust. The air conditioning outdoor unit comprises a spraying device, wherein the spraying device comprises a water storage device, a water pump connected with the water storage device and a spraying pipeline connected with the water pump; the air conditioning outdoor unit further comprises a fan and a control unit; the spraying device is arranged between the fan and the heat exchanger; when the spraying pipeline sprays water, the fan rotates oppositely so that the water sprayed by the spraying pipeline is sprayed on the heat exchanger; the control unit is connected with the spraying device and the fan; the control unit is used for controlling the spraying device to do water spaying and controlling opposite rotation of the fan. The embodiment of the invention is used for washing the heat exchanger.
Description
Technical field
The present invention relates to cleaning air conditioner field, particularly relate to a kind of method of air-conditioner outdoor unit and cleaning heat exchanger.
Background technology
Along with improving constantly of people's quality of life, the use of air-conditioning in average family is more and more extensive, general domestic air conditioning is divided into indoor set and off-premises station two parts, wherein all be provided with heat exchanger in indoor set and off-premises station, heat exchanger, as the important component part of air-conditioning, directly affects air conditioner refrigerating and heating effect.
Heat exchanger the most frequently used is at present air-source finned heat exchanger, it be a kind of air that utilizes to carry out the air-cooled type heat exchanger of exchange heat, easy for installation, structure is simple.Air-source finned heat exchanger is generally by fin, and tube bundle, side plate, the parts such as blower fan and motor form, and fin is inserted in tube bundle by a pitch of fins for regulation, carries out exchange heat by the bump contact of fin and air.Off-premises station adopts air-source finned heat exchanger when carrying out exchange heat, heat exchanger is needed to contact with outdoor air, but owing to there is gap between fin, so in the process of exchange heat, flow through the gap that the dirts such as the silt in the air of fin, dust and floating thing can enter into fin, and be deposited on the fin of heat exchanger, hinder the contact of fin and air, thus cause heat exchanger exchange capability of heat to decline, affect refrigeration and the heating effect of air-conditioning.
In order to solve the problem, the water tank that in prior art, usual side on heat exchangers arranges spray piping and is connected with spray piping, when heat exchanger cleans, by water pump, the water in water tank is sent into spray piping, and by spray piping, water is sprayed on heat exchangers.But the dust piled up due to the heat exchanger in air-conditioner outdoor unit is more, and paste tightr with the fin of heat exchanger, if directly water is sprayed on the fin of heat exchanger, because the flow velocity of water is less, be not easy the dust be deposited on fin to rinse out, thoroughly can not clean heat exchanger, cleaning quality is poor, and residual dust mixes with water can form the stronger dirt of adhesive force, causes secondary pollution.
Summary of the invention
Embodiments of the invention provide a kind of method of air-conditioner outdoor unit and cleaning heat exchanger, while the object realizing cleaning heat exchanger automatically, improve the cleaning quality of cleaning heat exchanger, avoid the secondary pollution that remaining dust causes.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The embodiment of the present invention provides a kind of air-conditioner outdoor unit on the one hand, the heat exchanger of described air-conditioner outdoor unit is air-source finned heat exchanger, described air-conditioner outdoor unit comprises spray equipment, described spray equipment comprises water receiver, the water pump be connected with described water receiver, and the spray piping be connected with described water pump; Described water receiver is used for the water of heat exchanger described in store washing; Described spray piping is arranged at above described heat exchanger, for spraying water to described heat exchanger orientation; Described water pump is used for the water in described water receiver to send into described spray piping;
Described air-conditioner outdoor unit also comprises fan and control unit;
Described spray equipment is arranged between described fan and described heat exchanger;
Described fan is used for when described spray piping water spray, and rotate backward, the water that described spray piping is sprayed is sprayed onto on described heat exchanger;
Described control unit connects described spray equipment and described fan respectively, and described control unit is used for controlling described spray equipment respectively and carries out water spray and described fan rotates backward.
Optionally, described control unit is also for receiving triggering signal, and described triggering signal is used to indicate the described heat exchanger of cleaning;
Described control unit specifically for according to described triggering signal, controls described spray equipment respectively and carries out water spray and described fan rotates backward.
Optionally, described air-conditioner outdoor unit also comprises leeway detecting unit, and described leeway detecting unit is for detecting the leeway between described heat exchanger air side and inlet side;
Described leeway detecting unit also for when the air side of described heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, sends described triggering signal to described control unit.
Optionally, described air-conditioner outdoor unit also comprises the first timing unit, and described first timing unit is for recording the accumulated running time of air-conditioner outdoor unit;
Described first timing unit also for when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, sends described triggering signal to described control unit.
Optionally, described air-conditioner outdoor unit also comprises the second timing unit, and described second timing unit is for recording the accumulated running time of air-conditioner outdoor unit;
Described control unit, also for when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, controls described spray equipment respectively and carries out water spray and described fan rotates backward.
Optionally, described air-conditioner outdoor unit also comprises temperature detecting unit, and described temperature detecting unit is for detecting the environment temperature of described air-conditioner outdoor unit;
Described control unit, also specifically for after receiving described triggering signal, judges whether the environment temperature of described air-conditioner outdoor unit is more than or equal to the first preset temperature value, is less than or equal to the second preset temperature value;
When the environment temperature of described air-conditioner outdoor unit is more than or equal to the first preset temperature value, when being less than or equal to the second preset temperature value, controlling described spray equipment respectively and carry out water spray and described fan rotates backward.
Optionally, described air-conditioner outdoor unit also comprises water detection unit, and whether described water detection unit exists ponding on the base plate detecting described air-conditioner outdoor unit;
When there is ponding on the base plate of described air-conditioner outdoor unit, send feedback signal to described control unit;
Described control unit also for after receiving described triggering signal, receives described feedback signal;
According to described triggering signal and described feedback signal, control described spray equipment respectively and carry out water spray and described fan rotates backward.
The embodiment of the present invention provides a kind of method of cleaning heat exchanger on the other hand, for air-conditioner outdoor unit, the heat exchanger of described air-conditioner outdoor unit is air-source finned heat exchanger, described air-conditioner outdoor unit comprises spray equipment, described spray equipment comprises water receiver, the water pump be connected with described water receiver, and the spray piping be connected with described water pump; Described air-conditioner outdoor unit also comprises fan, and described spray equipment is arranged between described fan and described heat exchanger, and described method comprises:
When described heat exchanger needs to clean, control described spray equipment and spray water to described heat exchanger orientation;
When described spray equipment is sprayed water to heat exchanger orientation, control described fan and rotate backward, the water that described spray equipment sprays is sprayed on described heat exchanger.
Optionally, when described heat exchanger needs to clean, control described spray equipment and comprise to described heat exchanger orientation water spray:
When the air side of described heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and/or when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, control described spray equipment and spray water to described heat exchanger orientation.
Optionally, when the air side of described heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and/or the accumulated running time of described air-conditioner outdoor unit is when being more than or equal to preset time threshold, controls described spray equipment and comprise to described heat exchanger orientation water spray:
When the air side of described heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and the environment temperature of described air-conditioner outdoor unit is more than or equal to the first preset temperature value, when being less than or equal to the second preset temperature value, controlling described spray equipment and spray water to described heat exchanger orientation;
Or when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, and the environment temperature of described air-conditioner outdoor unit is more than or equal to the first preset temperature value, when being less than or equal to the second preset temperature value, controlling described spray equipment and spray water to described heat exchanger orientation.
Optionally, when the air side of described heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, control described spray equipment and comprise to described heat exchanger orientation water spray:
When the air side of described heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and when the base plate of described air-conditioner outdoor unit exists ponding, control described spray equipment and spray water to described heat exchanger orientation;
Or when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, and when the base plate of described air-conditioner outdoor unit exists ponding, controls described spray equipment and spray water to described heat exchanger orientation.
The method of the air-conditioner outdoor unit that the embodiment of the present invention provides and cleaning heat exchanger, the heat exchanger of described air-conditioner outdoor unit is air-source finned heat exchanger, and described air-conditioner outdoor unit comprises spray equipment, and spray equipment comprises water receiver, the water pump be connected with water receiver, and the spray piping be connected with water pump; Water receiver is used for the water of store washing heat exchanger; Spray piping is arranged at above heat exchanger, for spraying water to heat exchanger orientation; Water pump is used for the water in water receiver to send into spray piping; Described air-conditioner outdoor unit also comprises fan and control unit; Spray equipment is arranged between fan and heat exchanger; Fan is used for when spray piping is sprayed water, and rotate backward, the water that spray piping is sprayed is sprayed onto on heat exchanger; Control unit connects spray equipment and fan respectively, and control unit is used for controlling spray equipment respectively and carries out water spray and fan rotates backward.Compared to prior art, when heat exchanger needs cleaning, the air-conditioner outdoor unit that the embodiment of the present invention provides is sprayed water to heat exchanger orientation by its inner spray equipment arranged, the wind simultaneously being rotated backward generation by fan applies pressure to the water that spray equipment sprays, the water that spray equipment is sprayed can be sprayed on the fin of heat exchanger more uniformly, and make the flow velocity of the water be sprayed on the fin of heat exchanger higher, larger to the dynamics of washing away of fin, dust on fin can be sticked to, the cleaning down such as silt and floating thing falls, while realizing the object of cleaning heat exchanger automatically, improve the quality of cleaning heat exchanger, avoid the secondary pollution that remaining dust causes.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of air-conditioner outdoor unit that Fig. 1 provides for the embodiment of the present invention;
The structural representation of a kind of spray equipment that Fig. 2 provides for the embodiment of the present invention;
A kind of FB(flow block) cleaning heat exchanger that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of air-conditioner outdoor unit 10, as shown in Figure 1, the heat exchanger of described air-conditioner outdoor unit 10 is air-source finned heat exchanger, air-conditioner outdoor unit 10 comprises spray equipment 103, spray equipment 103 comprises water receiver 1031, the water pump 1033 be connected with water receiver 1031, and the spray piping 1032 be connected with water pump 1033.Water receiver 1031 is for the water of store washing heat exchanger 102; Spray piping 1032 is arranged at above heat exchanger 102, for spraying water to heat exchanger 102 direction; Water pump 1033 is for sending the water in water receiver 1031 into spray piping 1032; Air-conditioner outdoor unit 10 also comprises fan 101 and control unit; Spray equipment 103 is arranged between fan 101 and heat exchanger 102; Fan 101, for when spray piping 1032 is sprayed water, rotates backward, and the water that spray piping 1032 is sprayed is sprayed onto on heat exchanger 102.
Water receiver 1031 can be arranged on the base plate of air-conditioner outdoor unit 10, is used for the water of store washing heat exchanger 102.It should be noted that, if the installation site of indoor apparatus of air conditioner is higher than the installation site of air-conditioner outdoor unit 10, condensate water in indoor apparatus of air conditioner can flow to the water receiver of air-conditioner outdoor unit 10 from indoor apparatus of air conditioner under gravity, then can adopt the condensate water in indoor apparatus of air conditioner as water for cleaning to clean heat exchanger 102, take full advantage of the condensate water of indoor apparatus of air conditioner like this, and do not need to access water for cleaning separately, saved water resource.Or if the condensate water in indoor apparatus of air conditioner cannot be pooled in the water receiver 1031 of air-conditioner outdoor unit 10, user can add water for cleaning as required in water receiver 1031.
Spray piping 1032 is arranged at the top of heat exchanger 102, for spraying water to heat exchanger orientation.As shown in Figure 2, spray piping 1032 can be arranged in broken line, spray piping 1032 can comprise ab section and bc section two segment pipe, wherein a end of ab segment pipe connects water pump 1033, bc segment pipe is fixed on the top of heat exchanger 102 near fan 101, bc segment pipe is provided with multiple shower nozzle, and for spraying water to heat exchanger 102 direction, the present invention does not limit shower nozzle quantity.
Water pump 1033 is for sending the water in water receiver 1031 into spray piping 1032.Shown in figure 2, water pump 1033 can be placed on the base plate of air-conditioner outdoor unit 10, and one end of water pump 1033 connects water receiver 1031, and for extracting the water in water receiver 1031 out, the other end connects spray piping 1032.Because water pump 1033 to feed water again supercharging while transport water, so when needs cleaning heat exchanger 102, starting water pump 1033, the water in water receiver 1031 will spray through the spout of spray piping 1032 fast.Now fan 101 rotates backward, the water that spray piping 1032 is sprayed is sprayed onto on heat exchanger 102, and be sprayed onto water on heat exchanger 102 comparatively evenly and pressure is larger, the dust sticked on the fin of heat exchanger 102, silt and floating thing etc. can be rinsed out, reach the object of cleaning heat exchanger automatically.
It should be noted that, when air-conditioning needs heat or freeze, motor 104 is energized, and drive fan 101 to rotate, the now rotation of fan 101 rotates forward, described in rotate backward be the rotation contrary with the rotation direction rotated forward.In practical application, the switch of cleaning heat exchanger 102 can be set, when heat exchanger 102 needs to clean, this switch closed, spray equipment 103 can be sprayed water, simultaneously fan 101 rotates backward, and comparatively even and larger being sprayed on heat exchanger 102 of flow velocity of the water that spray equipment 103 spray, completes the cleaning of heat exchanger 102.
Control unit connects spray equipment 103 and fan 101 respectively, carries out water spray and fan 101 rotates backward for controlling spray equipment 103 respectively.
Example, described control unit can be a control circuit, or also can be a CPU (CentralProcessingUnit, central processing unit) chip, and the embodiment of the present invention does not limit this.Described control unit can be separately for air-conditioner outdoor unit 10 cleans the control device that heat exchanger 102 arranges, also can the control substrate of using air-condition off-premises station 10 in practical application.Preferably, the control substrate of using air-condition off-premises station 10 as control unit, does not then need to arrange extra control device, which reduces technical costs, save resource.
When heat exchanger 102 needs to clean, control unit can control water pump 1033 and start, and the water in water receiver 1031 is extracted out and sent in spray piping 1032 by water pump 1033, and water sprays from the spout of spray piping 1032.Simultaneously control unit controls fan 101 and rotates backward, and what the comparatively even and flow velocity of the water that spray piping 1032 spray was larger is sprayed onto on heat exchanger 102, cleans heat exchanger 102 with this.
So, when heat exchanger needs cleaning, the air-conditioner outdoor unit that the embodiment of the present invention provides is sprayed water to heat exchanger orientation by its inner spray equipment arranged, the wind simultaneously being rotated backward generation by fan applies pressure to the water that spray equipment sprays, the water that spray equipment is sprayed can be sprayed on the fin of heat exchanger more uniformly, and make the flow velocity of the water be sprayed on the fin of heat exchanger larger, larger to the dynamics of washing away of fin, dust on fin can be sticked to, the cleaning down such as silt and floating thing falls, while achieving the object of cleaning heat exchanger automatically, improve the cleaning quality of cleaning heat exchanger, avoid the secondary pollution that remaining dust causes.
Further, control unit is also for receiving triggering signal, and described triggering signal is used to indicate cleaning heat exchanger 102.Control unit specifically for according to described triggering signal, controls spray equipment 103 respectively and carries out water spray and fan 101 rotates backward.
When checkout equipment detects that heat exchanger 102 needs to clean, checkout equipment can send triggering signal to control unit, and after control unit receives this triggering signal, control spray equipment 103 carries out water spray and fan 101 rotates backward, cleaning heat exchanger 102.
Optionally, air-conditioner outdoor unit 10 also comprises leeway detecting unit 105, and leeway detecting unit 105 is for detecting the leeway between heat exchanger 102 air side and inlet side.Leeway detecting unit 105, also for when the air side of heat exchanger 102 and the leeway of inlet side are more than or equal to default leeway threshold value, sends triggering signal to control unit.
Example, as shown in Figure 1, leeway detecting unit 105 can be leeway switch, and this leeway switch can be arranged on the base plate of air-conditioner outdoor unit 10, is close to the air side of heat exchanger 102.In practical application, the blast can giving tacit consent to heat exchanger 102 inlet side is 0, so by the air side of leeway switch-linear hybrid at heat exchanger 102, only need measure the blast of heat exchanger 102 air side, described blast is the air side of heat exchanger and the leeway of inlet side.Or, first the blast of inlet side is measured, be set to the blast measuring the inlet side obtained with reference to blast, practical application Wind pressure difference switch only need measure the blast of air side, then obtains the blast of air side and the air side of difference as heat exchanger of reference blast and the leeway of inlet side.
After heat exchanger 102 works a period of time, the dirts such as the silt in air, dust and floating thing can enter the gap of heat exchanger 102, be deposited on the fin of heat exchanger 102, along with the increase of dirt accumulation thickness, space between the fin of heat exchanger 102 can reduce, when air flows through the air side of heat exchanger 102, the blast of air side can become large.When leeway detecting unit 105 detects the air side of heat exchanger 102 and the leeway of inlet side is more than or equal to default leeway threshold value, leeway detecting unit 105 sends triggering signal to control unit, this triggering signal instruction heat exchanger 102 needs to clean, so that control unit is according to this triggering signal, control spray equipment 103 respectively and carry out water spray and fan 101 rotates backward, and then reach the object of cleaning heat exchanger.
Presetting leeway threshold value is the value preset, and set as the case may be in practical application, the embodiment of the present invention does not limit this.
Optionally, air-conditioner outdoor unit 10 also comprises the first timing unit, and described first timing unit is for recording the accumulated running time of air-conditioner outdoor unit 10.Such as, the first timing unit can be timer.Described first timing unit also for when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, sends described triggering signal to described control unit.Wherein, preset time threshold is the value preset, and sets as the case may be in practical application, and the embodiment of the present invention does not limit this.
Because air-conditioner outdoor unit 10 is operated in outdoor, general outdoor dust is comparatively large, and after a period of operation, the heat exchanger 102 of air-conditioner outdoor unit 10 is easy to deposition dust and floating thing, these dirts can affect refrigeration and the heating effect of heat exchanger.So preset time threshold can be set according to actual conditions, according to the preset time threshold of setting, every regular time heat exchanger 102 to clean, the impact of the heat transfer effect of dirt heat exchanger can be reduced, ensure the normal work of air-conditioning.Suppose that preset time threshold is 100 hours (h), when air-conditioner outdoor unit 10 accumulated running time is more than or equal to 100h, illustrate that the time of heat exchanger 102 cumulative activation of air-conditioner outdoor unit 10 is longer, exceed preset time threshold, possible heat exchanger deposited more dust and floating thing, have impact on the normal work of heat exchanger 102, now can clean by heat exchanger, reduce the impact of the heat transfer effect of dirt heat exchanger, ensure the normal work of air-conditioning.Or different preset time threshold can be set according to geographical position, example, if the geographical position that air-conditioner outdoor unit 10 works is Beijing, because Pekinese's air ambient is undesirable, air-conditioner outdoor unit 10 may after the cumulative activation short period, the fin of heat exchanger 102 just have accumulated more dust and floating thing, have impact on the heat transfer effect of heat exchanger 102, what now preset time threshold can be arranged is less, make air-conditioner outdoor unit 10 after the cumulative activation short period, clean with regard to heat exchanger 102; If the geographical position that air-conditioner outdoor unit 10 works is Tibet, because the air ambient in Tibet is good, dust in air and floating thing less, make air-conditioner outdoor unit 10 after the cumulative activation long period, the fin of heat exchanger 102 is also cleaner, dust and the floating thing of deposition are less, heat exchanger 102 is not needed to clean, what now preset time threshold can be arranged is larger, make air-conditioner outdoor unit 10 after the cumulative activation long period, just heat exchanger 102 cleans, and avoids the damage frequently carried out cleaning heat exchanger 102 and cause.
Optionally, air-conditioner outdoor unit 10 can also comprise the second timing unit, and the second timing unit is for recording the accumulated running time of air-conditioner outdoor unit 10, and such as, the second timing unit can be timer.Described control unit is also for after reception triggering signal, judge whether the accumulated running time of described air-conditioner outdoor unit 10 is more than or equal to preset time threshold, when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, controls spray equipment 103 respectively and carry out water spray and fan 101 rotates backward.
Because in the running environment of air-conditioning, dust is larger, heat exchanger 102 is easy to deposition dust and floating thing, when judging whether that heat exchanger 102 cleans by leeway detecting unit 105, leeway detecting unit 105 may be higher to the frequency of control unit transmission triggering signal, but frequently heat exchanger 102 carry out cleaning can bring inconvenience to user, and also may cause damage by heat exchanger 102, therefore control unit can also after the triggering signal receiving leeway detecting unit 105 transmission, by reading the time that the second timing unit records, obtain the accumulated running time of air-conditioner outdoor unit 10, then judge whether the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, when the accumulated running time of described air-conditioner outdoor unit 10 is more than or equal to preset time threshold, illustrate that the accumulated running time of air-conditioner outdoor unit 10 is longer, the dirt be deposited on the fin of heat exchanger 102 is also more, at this moment control unit can control spray equipment 103 respectively and carries out water spray and fan 101 rotates backward, and cleans heat exchanger 102 with this.After control unit controls spray equipment 103 and fan 101 completes the cleaning of heat exchanger 102, second timing unit resets, again the accumulated running time of air-conditioner outdoor unit 10 is recorded, if so that when heat exchanger 102 needs to clean, judge whether that applicable heat exchanger 102 cleans next time.
Example, suppose that preset time threshold is 100h, after control unit receives the triggering signal of leeway detecting unit 105 transmission, read the time that the second timing unit records, when the time that the second timing unit records is more than or equal to 100h, judge that now heat exchanger 102 needs to carry out cleaning and can cleaning, at this moment control unit controls spray equipment 103 respectively and carries out water spray and fan 101 rotates backward, and heat exchanger 102 cleans.
Optionally, air-conditioner outdoor unit 10 can also comprise temperature detecting unit 106, for detecting the environment temperature of air-conditioner outdoor unit 10 inside.Such as, described temperature detecting unit 106 can for being arranged on environment temperature sensor or the thermometer of air-conditioner outdoor unit 10 inside.Described control unit, specifically for after receiving triggering signal, judges whether the environment temperature of described air-conditioner outdoor unit is more than or equal to the first preset temperature value, is less than or equal to the second preset temperature value; When the environment temperature of air-conditioner outdoor unit 10 is more than or equal to the first preset temperature value, when being less than or equal to the second preset temperature value, controlling spray equipment 103 respectively and carry out water spray and fan 101 rotates backward.
Example, in actual applications, after control unit receives the triggering signal of leeway switch 102 or the transmission of the first timing unit, the work freezing or heat may be carried out due to air-conditioner outdoor unit 10, control unit is not suitable for heat exchanger 102 to clean, so can also judge that the whether applicable heat exchanger 102 of environment temperature now cleans.Example, control unit can obtain the testing result of temperature detecting unit 106, according to the testing result of temperature detecting unit 106, judge whether the environment temperature of air-conditioner outdoor unit 10 inside is more than or equal to the first preset temperature value, and be less than or equal to the second preset temperature value, when the interior environment temperature of air-conditioner outdoor unit 10 is more than or equal to the first preset temperature value, and when being less than or equal to the second preset temperature value, illustrate that air-conditioner outdoor unit 10 does not carry out the work heating or freeze, be applicable to heat exchanger 102 at this ambient temperature to clean, at this moment control unit controls spray equipment 103 respectively and carries out water spray and fan 101 rotates backward, heat exchanger 102 is cleaned with this.If the interior environment temperature of air-conditioner outdoor unit 10 is less than the first preset temperature value, or be greater than the second preset temperature value, illustrate that air-conditioner outdoor unit 10 may carry out the work freezed or heat, if heat exchanger 102 cleans, the effect that air-conditioner outdoor unit 10 heats or freezes may be affected, and then user is brought inconvenience, so receive triggering signal at control unit, but the interior environment temperature of air-conditioner outdoor unit 10 is less than the first preset temperature value, or when being greater than the second preset temperature value, heat exchanger 102 does not clean.
Concrete, first preset temperature value and the second preset temperature value are the value preset, generally, when environment temperature is below 10 °, because user needs to utilize air-conditioning to heat, if now heat exchanger 102 cleans, the heating effect of air-conditioning can be affected, and then affect Consumer's Experience, so be now inconvenient to clean.When environment temperature is more than 25 °, because user needs to utilize air-conditioning to freeze, if now heat exchanger 102 cleans, the refrigeration of air-conditioning can be affected, and then affect Consumer's Experience, so be now also inconvenient to clean.Therefore, preferably, the first preset temperature value is generally more than or equal to 10 °, and the second preset temperature value is generally less than or equals 25 °.
Optionally, air-conditioner outdoor unit 10 can also comprise water detection unit 107, and whether water detection unit 107 exists ponding on the base plate detecting air-conditioner outdoor unit 10.Example, as shown in Figure 1, water detection unit 107 can be switch, switch can be arranged on the edge of the base plate of air-conditioner outdoor unit 10, whether ponding is there is on the base plate detecting air-conditioner outdoor unit 10, when there is ponding on the base plate of air-conditioner outdoor unit 10, ball float in switch is subject to buoyancy of water and rises, closed switch, make switch can send feedback signal to control unit, described control unit is also for after receiving described triggering signal, receiving feedback signals, then according to triggering signal and feedback signal, control spray equipment 103 respectively and carry out water spray and fan 101 rotates backward.
After control unit receives the triggering signal of leeway switch 102 or the transmission of the first timing unit, judge that heat exchanger 102 needs to clean, but when cleaning heat exchanger 102, cleaning sullage can flow out from the base plate gap of air-conditioner outdoor unit 10, affect the normal life of resident, be also unfavorable for the totally attractive in appearance of outdoor environment.Therefore, after control unit receives triggering signal, the feedback signal that water detection unit 107 sends can also be received, after receiving feedback signal, illustrate that base plate has ponding, now rainy day just, the normal life of resident can not be affected when heat exchanger 102 cleans, or less on the normal life impact of resident, be applicable to heat exchanger 102 and clean.Example, control unit receives the triggering signal of leeway switch 102 or the transmission of the first timing unit, judge that heat exchanger 102 needs to clean, but owing to not receiving the feedback signal that water detection unit 102 sends, so controller not heat exchanger 102 clean, when sky begins to rain, when there is ponding in the base plate place of air-conditioner outdoor unit 10, water detection unit 107 sends feedback signal to control unit, now control unit judges that applicable heat exchanger 102 cleans, then control spray equipment 103 and carry out water spray and fan 101 rotates backward, complete the cleaning of heat exchanger 102.
The air-conditioner outdoor unit that the embodiment of the present invention provides, the heat exchanger of described air-conditioner outdoor unit is air-source finned heat exchanger, and described air-conditioner outdoor unit comprises spray equipment, and spray equipment comprises water receiver, the water pump be connected with water receiver, and the spray piping be connected with water pump; Water receiver is used for the water of store washing heat exchanger; Spray piping is arranged at above heat exchanger, for spraying water to heat exchanger orientation; Water pump is used for the water in water receiver to send into spray piping; Described air-conditioner outdoor unit also comprises fan and control unit; Spray equipment is arranged between fan and heat exchanger; Fan is used for when spray piping spray water, and rotate backward, the water that spray piping is sprayed is sprayed onto on heat exchanger, and control unit connects spray equipment and fan respectively, and control unit carries out water spray and fan rotates backward for control spray equipment respectively.Compared to prior art, when heat exchanger needs cleaning, the air-conditioner outdoor unit that the embodiment of the present invention provides is sprayed water to heat exchanger orientation by its inner spray equipment arranged, the wind simultaneously being rotated backward generation by fan applies pressure to the water that spray equipment sprays, the water that spray equipment is sprayed can be sprayed on the fin of heat exchanger more uniformly, and make the flow velocity of the water be sprayed on the fin of heat exchanger larger, larger to the dynamics of washing away of fin, dust on fin can be sticked to, the cleaning down such as silt and floating thing falls, while achieving the object of cleaning heat exchanger automatically, improve the cleaning quality of cleaning heat exchanger, avoid the secondary pollution that remaining dust causes.
The embodiment of the present invention also provides a kind of method of cleaning heat exchanger, as shown in Figure 3, for air-conditioner outdoor unit, the heat exchanger of described air-conditioner outdoor unit is air-source finned heat exchanger, described air-conditioner outdoor unit comprises spray equipment, spray equipment comprises water receiver, the water pump be connected with water receiver, and the spray piping be connected with water pump; Described air-conditioner outdoor unit also comprises fan, and spray equipment is arranged between fan and heat exchanger, and described method comprises:
S301, when heat exchanger need clean time, control spray equipment spray water to heat exchanger orientation.
Example, when heat exchanger needs to clean, air-conditioner outdoor unit can control starting of pump station, and the water in water receiver is extracted out and sent in spray piping by water pump, and water will spray from the spout of spray piping, sprays to heat exchanger orientation.
S302, when spray equipment is sprayed water to heat exchanger orientation, control fan rotate backward, by spray equipment spray water spray on heat exchangers.
Example, when heat exchanger needs to clean, while air-conditioner outdoor unit control spray equipment is sprayed water to heat exchanger orientation, air-conditioner outdoor unit controls fan and rotates backward, the water that spray piping is sprayed comparatively evenly and flow velocity larger be sprayed onto on heat exchanger, clean heat exchanger with this.
So, when cleaning heat exchanger, sprayed water to heat exchanger orientation by its inner spray equipment arranged, the wind simultaneously being rotated backward generation by fan applies pressure to the water that spray equipment sprays, the water that spray equipment is sprayed can be sprayed on the fin of heat exchanger more uniformly, and make the flow velocity of the water be sprayed on the fin of heat exchanger larger, larger to the dynamics of washing away of fin, dust on fin can be sticked to, the cleaning down such as silt and floating thing falls, while achieving the object of cleaning heat exchanger automatically, improve the cleaning quality of cleaning heat exchanger, avoid the secondary pollution that remaining dust causes.
Further, when heat exchanger needs to clean, control spray equipment can comprise to heat exchanger orientation water spray: when the air side of heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and/or the accumulated running time of described air-conditioner outdoor unit is when being more than or equal to preset time threshold, controls spray equipment and spray water to heat exchanger orientation.
Optionally, when the air side of heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and/or the accumulated running time of described air-conditioner outdoor unit is when being more than or equal to preset time threshold, control spray equipment can comprise to heat exchanger orientation water spray: when the air side of heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and the environment temperature of air-conditioner outdoor unit is more than or equal to the first preset temperature value, when being less than or equal to the second preset temperature value, controlling spray equipment and spray water to heat exchanger orientation;
Or when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, and the environment temperature of described air-conditioner outdoor unit is more than or equal to the first preset temperature value, when being less than or equal to the second preset temperature value, controlling described spray equipment and spray water to heat exchanger orientation.
Optionally, when the air side of heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and/or the accumulated running time of described air-conditioner outdoor unit is when being more than or equal to preset time threshold, control spray equipment can comprise to heat exchanger orientation water spray: when the air side of heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and when the base plate of air-conditioner outdoor unit exists ponding, control spray equipment and spray water to heat exchanger orientation;
Or when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, and when the base plate of air-conditioner outdoor unit exists ponding, controls described spray equipment and spray water to heat exchanger orientation.
The method of the cleaning heat exchanger that the embodiment of the present invention provides, for air-conditioner outdoor unit, the heat exchanger of described air-conditioner outdoor unit is air-source finned heat exchanger, described air-conditioner outdoor unit comprises spray equipment, spray equipment comprises water receiver, the water pump be connected with water receiver, and the spray piping be connected with water pump; Described air-conditioner outdoor unit also comprises fan, and spray equipment is arranged between fan and heat exchanger, and described method comprises: when heat exchanger needs clean, and controls spray equipment and sprays water to heat exchanger orientation; When spray equipment is sprayed water to heat exchanger orientation, control fan and rotate backward, the water sprayed by spray equipment sprays on heat exchangers.Compared to prior art, the method of the cleaning heat exchanger that the embodiment of the present invention provides, sprayed water to heat exchanger orientation by its inner spray equipment arranged, the wind simultaneously being rotated backward generation by fan applies pressure to the water that spray equipment sprays, the water that spray equipment is sprayed can be sprayed on the fin of heat exchanger more uniformly, and make the flow velocity of the water be sprayed on the fin of heat exchanger larger, larger to the dynamics of washing away of fin, dust on fin can be sticked to, the cleaning down such as silt and floating thing falls, while achieving the object of cleaning heat exchanger automatically, improve the cleaning quality of cleaning heat exchanger, avoid the secondary pollution that remaining dust causes.
Term "and/or" in the present invention, being only a kind of incidence relation describing affiliated partner, can there are three kinds of relations in expression, and such as, A and/or B, can represent: individualism A, exists A and B simultaneously, these three kinds of situations of individualism B.In addition, character "/" herein, general expression forward-backward correlation is to the relation liking a kind of "or".
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the detailed process of the embodiment of the method for foregoing description, with reference to the corresponding process in aforementioned means embodiment, can not repeat them here.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (11)
1. an air-conditioner outdoor unit, the heat exchanger of described air-conditioner outdoor unit is air-source finned heat exchanger, and described air-conditioner outdoor unit comprises spray equipment, and described spray equipment comprises water receiver, the water pump be connected with described water receiver, and the spray piping be connected with described water pump; Described water receiver is used for the water of heat exchanger described in store washing; Described spray piping is arranged at above described heat exchanger, for spraying water to described heat exchanger orientation; Described water pump is used for the water in described water receiver to send into described spray piping; It is characterized in that,
Described air-conditioner outdoor unit also comprises fan and control unit;
Described spray equipment is arranged between described fan and described heat exchanger;
Described fan is used for when described spray piping water spray, and rotate backward, the water that described spray piping is sprayed is sprayed onto on described heat exchanger;
Described control unit connects described spray equipment and described fan respectively, and described control unit is used for controlling described spray equipment respectively and carries out water spray and described fan rotates backward.
2. air-conditioner outdoor unit according to claim 1, is characterized in that,
Described control unit is also for receiving triggering signal, and described triggering signal is used to indicate the described heat exchanger of cleaning;
Described control unit specifically for according to described triggering signal, controls described spray equipment respectively and carries out water spray and described fan rotates backward.
3. air-conditioner outdoor unit according to claim 2, is characterized in that,
Described air-conditioner outdoor unit also comprises leeway detecting unit, and described leeway detecting unit is for detecting the leeway between described heat exchanger air side and inlet side;
Described leeway detecting unit also for when the air side of described heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, sends described triggering signal to described control unit.
4. air-conditioner outdoor unit according to claim 2, is characterized in that,
Described air-conditioner outdoor unit also comprises the first timing unit, and described first timing unit is for recording the accumulated running time of air-conditioner outdoor unit;
Described first timing unit also for when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, sends described triggering signal to described control unit.
5. air-conditioner outdoor unit according to claim 3, is characterized in that,
Described air-conditioner outdoor unit also comprises the second timing unit, and described second timing unit is for recording the accumulated running time of air-conditioner outdoor unit;
Described control unit also for after the described triggering signal of reception, judges whether the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold;
When the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, controls described spray equipment respectively and carry out water spray and described fan rotates backward.
6. the air-conditioner outdoor unit according to claim 3 or 4, is characterized in that,
Described air-conditioner outdoor unit also comprises temperature detecting unit, and described temperature detecting unit is for detecting the environment temperature of described air-conditioner outdoor unit;
Described control unit, specifically for after receiving described triggering signal, judges whether the environment temperature of described air-conditioner outdoor unit is more than or equal to the first preset temperature value, when being less than or equal to the second preset temperature value;
When the environment temperature of described air-conditioner outdoor unit is more than or equal to the first preset temperature value, when being less than or equal to the second preset temperature value, controlling described spray equipment respectively and carry out water spray and described fan rotates backward.
7. the air-conditioner outdoor unit according to claim 3 or 4, is characterized in that,
Described air-conditioner outdoor unit also comprises water detection unit, and whether described water detection unit exists ponding on the base plate detecting described air-conditioner outdoor unit;
When there is ponding on the base plate of described air-conditioner outdoor unit, send feedback signal to described control unit;
Described control unit also for after receiving described triggering signal, receives described feedback signal;
According to described triggering signal and described feedback signal, control described spray equipment respectively and carry out water spray and described fan rotates backward.
8. one kind is cleaned the method for heat exchanger, for air-conditioner outdoor unit, the heat exchanger of described air-conditioner outdoor unit is air-source finned heat exchanger, described air-conditioner outdoor unit comprises spray equipment, described spray equipment comprises water receiver, the water pump be connected with described water receiver, and the spray piping be connected with described water pump; It is characterized in that, described air-conditioner outdoor unit also comprises fan, and described spray equipment is arranged between described fan and described heat exchanger, and described method comprises:
When described heat exchanger needs to clean, control described spray equipment and spray water to described heat exchanger orientation;
When described spray equipment is sprayed water to heat exchanger orientation, control described fan and rotate backward, the water that described spray equipment sprays is sprayed on described heat exchanger.
9. method according to claim 8, is characterized in that, described when described heat exchanger needs to clean, and controls described spray equipment and comprises to described heat exchanger orientation water spray:
When the air side of described heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and/or when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, control described spray equipment and spray water to described heat exchanger orientation.
10. method according to claim 9, it is characterized in that, describedly be more than or equal to default leeway threshold value when the air side of described heat exchanger and the leeway of inlet side, and/or the accumulated running time of described air-conditioner outdoor unit is when being more than or equal to preset time threshold, controls described spray equipment and comprise to described heat exchanger orientation water spray:
When the air side of described heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and the environment temperature of described air-conditioner outdoor unit is more than or equal to the first preset temperature value, when being less than or equal to the second preset temperature value, controlling described spray equipment and spray water to described heat exchanger orientation;
Or when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, and the environment temperature of described air-conditioner outdoor unit is more than or equal to the first preset temperature value, when being less than or equal to the second preset temperature value, controlling described spray equipment and spray water to described heat exchanger orientation.
11. methods according to claim 9, it is characterized in that, describedly be more than or equal to default leeway threshold value when the air side of described heat exchanger and the leeway of inlet side, and/or the accumulated running time of described air-conditioner outdoor unit is when being more than or equal to preset time threshold, controls described spray equipment and comprise to described heat exchanger orientation water spray:
When the air side of described heat exchanger and the leeway of inlet side are more than or equal to default leeway threshold value, and when the base plate of described air-conditioner outdoor unit exists ponding, control described spray equipment and spray water to described heat exchanger orientation;
Or when the accumulated running time of described air-conditioner outdoor unit is more than or equal to preset time threshold, and when the base plate of described air-conditioner outdoor unit exists ponding, controls described spray equipment and spray water to described heat exchanger orientation.
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| CN201410380701.2A CN105318452A (en) | 2014-08-05 | 2014-08-05 | Air conditioning outdoor unit and method for washing heat exchanger |
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| CN201410380701.2A CN105318452A (en) | 2014-08-05 | 2014-08-05 | Air conditioning outdoor unit and method for washing heat exchanger |
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Application publication date: 20160210 |