Multi-split air conditioner outdoor unit air-cooling temperature-reducing efficiency-improving equipment based on air conditioner condensate water recovery

Abstract

The utility model discloses a multi-split outdoor unit air-cooled cooling synergistic device based on air conditioner condensate water recovery, and aims to provide a multi-split outdoor unit air-cooled cooling synergistic device which can recover air conditioner condensate water and utilize cold energy of the air conditioner condensate water to perform heat exchange with inlet air of an outdoor unit so as to reduce the inlet air temperature of the outdoor unit and reduce the refrigerating power consumption of the outdoor unit. The air-cooling and temperature-reducing efficiency-improving equipment for the outdoor unit of the multi-split air conditioner can guarantee energy-saving and efficient operation of the The condensate water collector is provided with a water storage cavity and is arranged at the drainage end of a drainage pipe of the indoor unit; the fin assembly is arranged at the air inlet of the outdoor unit of the multi-split air conditioner; the temperature sensor is used for detecting the temperature of the fins; the spraying device comprises an atomizing nozzle with an opening facing the fin assembly, a connecting pipeline connecting the atomizing nozzle and the water storage cavity of the condensate water collector, and a water pump arranged on the connecting pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of multi-connected machine outdoor unit air cooling cooling efficiency equipment based on air conditioner condensate water recycling, and specifically relates to the technical field of multi-connected machine outdoor unit air cooling. BACKGROUND

[0002] When air conditioner refrigeration runs in summer, about 30% of air conditioner refrigeration capacity is used to remove indoor humidity load. At this time, the temperature of the evaporator surface on the indoor unit side in the room is lower than the dew point temperature of the air, and the water vapor in the air condenses on the evaporator surface to form condensate water. The condensate water directly comes from the surface of the refrigeration evaporator, and its temperature is lower than the indoor air temperature, generally 13-15℃. Condensate water is the condensate water of water vapor below the dew point. On the other hand, compared with municipal water, the calcium and magnesium content of air conditioner condensate water is very low, close to the treated softened water. Therefore, air conditioner condensate water is a high-quality water resource with low calcium and magnesium ion concentration and cold energy.

[0003] For example, a 10-story office building with a single floor office area of 3573㎡, a total of 630KW per floor, and a total of 108 indoor units are configured. When air conditioner refrigeration runs, the condensate water production is about 178kg / h. The entire refrigeration season is calculated from June to October, and the air conditioner runs for 8 hours a day on weekdays. After calculation, G=178*8*22*5=156 tons of condensate water will be produced. The current conventional treatment method of air conditioner condensate water is direct discharge. This treatment method has the following disadvantages: first, the direct discharge of condensate water containing cold energy is a waste of water resources and cold energy. Second, the uncontrolled discharge of air conditioner condensate water in office buildings, hotels, and hospitals will cause bacteria to breed indoors, affect indoor air quality and environmental health, and condensate water leakage will increase the workload of maintenance and repair. Therefore, the recycling of air conditioner condensate water not only improves the comfort of indoor rooms, but also helps to save energy and reduce carbon emissions.

[0004] Currently, the traditional multi-connected machine outdoor unit uses outdoor wind to dissipate high-temperature refrigerant heat to the atmospheric environment, which makes the multi-connected machine outdoor unit often in a high-temperature environment. In a high-temperature environment, the outdoor unit often causes the compressor to frequently start and stop due to insufficient heat dissipation, increasing energy consumption. In order to improve the shortcomings of the multi-connected machine outdoor unit in a high-temperature environment, some existing technologies use municipal water to spray external water sources to cool the air conditioner outdoor unit. However, this not only wastes water resources, but also causes calcium and magnesium in the water to form scale on the fins, affecting the heat exchange effect of the air conditioner outdoor unit.

[0005] For example, Chinese Patent Publication No. CN216308027U, entitled "A precision air conditioner outdoor unit automatic spraying cooling device", also uses municipal water to automatically spray precision air conditioner outdoor units for cooling, which also has the above problems. Utility model content

[0006] The utility model discloses a kind of based on air conditioner condensate water recovery's multiple connected machine outdoor unit air cooling temperature reduction efficiency increasing equipment, it can recover air conditioner condensate water, utilize the cold quantity of air conditioner condensate water, and heat exchange with outdoor unit air intake, to reduce outdoor unit air intake temperature, reduce outdoor unit refrigeration power consumption, to ensure that outdoor unit energy-saving efficient operation.

[0007] The technical scheme of the utility model is:

[0008] A kind of based on air conditioner condensate water recovery's multiple connected machine outdoor unit air cooling temperature reduction efficiency increasing equipment, comprising:

[0009] Condensate water collector with water storage cavity, is located at the drainage end of the condensate water drain pipe of indoor unit, collects the condensate water that the condensate water drain pipe of indoor unit discharges;

[0010] Fin assembly, is located at multiple connected machine outdoor unit air intake, and fin assembly includes several fins;

[0011] Temperature sensor, detects fin temperature;

[0012] Spraying device, including the atomizing nozzle with opening towards fin assembly, connecting pipeline of atomizing nozzle and the water storage cavity of condensate water collector and water pump being set on connecting pipeline.The specific work of the based on air conditioner condensate water recovery's multiple connected machine outdoor unit air cooling temperature reduction efficiency increasing equipment of the present scheme is as follows,

[0013] First, the condensate water discharged by the condensate water drain pipe of indoor unit is collected by condensate water collector, and the condensate water is stored in the water storage cavity of condensate water collector.

[0014] In the working process of the outdoor unit of the multi-split air conditioner, the fin temperature can be detected by the temperature sensor. When the fin temperature is greater than a set value (for example, the fin temperature is greater than 35 degrees), the water pump works to spray water mist from the water storage cavity to the fin assembly through the connecting pipeline and the atomizing nozzle. The water mist can fully and closely contact the fins of the fin assembly to ensure that the condensed water fully exchanges heat with the environment of the air inlet of the outdoor unit of the multi-split air conditioner, effectively reducing the temperature of the environment of the air inlet of the outdoor unit of the multi-split air conditioner; thereby effectively reducing the inlet air temperature during the working process of the outdoor unit of the multi-split air conditioner, and cooling the outdoor unit of the multi-split air conditioner. At the same time, the spraying frequency and water quantity can also be adjusted according to the fin temperature of the outdoor unit. Therefore, the outdoor unit air cooling and efficiency increasing device based on air conditioner condensate water recovery of the present scheme can recover the air conditioner condensate water and use the air conditioner condensate water to cool the outdoor unit of the multi-split air conditioner. In this way, the cold energy in the air conditioner condensate water can be used to reduce the outdoor unit inlet air temperature, thereby reducing the outdoor unit refrigeration power consumption, ensuring energy-efficient operation, reducing the dependence on municipal water for spraying cooling, greatly reducing the cost of municipal water softening treatment, and effectively improving the problem of calcium and magnesium in the spraying water causing scaling on the fins and affecting the heat exchange effect of the air conditioner outdoor unit.

[0015] On the other hand, the evaporation speed of water mist is more than 300 times that of water droplets. The heat exchange can be accelerated from liquid to gas, thereby strengthening the heat dissipation effect, and part of the water mist can flow with the inlet air of the outdoor unit of the multi-split air conditioner. The longer the contact time between the inlet air and the water, the more sufficient the heat exchange, and the closer the temperature of the inlet air to the wet-bulb temperature. The wet-bulb temperature is lower than the outdoor dry-bulb temperature, thereby strengthening the heat dissipation effect of the outdoor unit.

[0016] As a preferred, the fins of the fin assembly are distributed side by side, each fin extends upward and downward, and the gap between any two adjacent fins gradually increases from top to bottom. After the water mist is sprayed onto the surface of the fins of the fin assembly, the excess water flows downward and gathers at the lower part of the fin assembly. In order to avoid the water gathered at the lower part of the fin assembly forming a "water bridge" between the fins, blocking the heat exchange channel, and preventing the water from flowing downward along the fins, the gap between the fins is gradually increased from top to bottom, so that the water gathered at the lower part of the fin assembly can flow downward and drop smoothly, thereby ensuring that the condensed water fully exchanges heat with the environment of the air inlet of the outdoor unit of the multi-split air conditioner.

[0017] As preferred, the fin assembly comprises an upper fin group and a lower fin group below the upper fin group, the upper fin group comprises a plurality of fins, and the fins of the upper fin group are equidistantly and side by side distributed; the lower fin group comprises a plurality of fins, and the fins of the lower fin group are equidistantly and side by side distributed; the fins of the upper fin group and the lower fin group are vertically and longitudinally distributed, and the gap between two adjacent fins in the lower fin group is larger than the gap between two adjacent fins in the upper fin group. After the water mist is sprayed on the surface of the fins of the fin assembly, the excess water flows downward and gathers at the lower part of the fin assembly. In order to avoid that the water gathered at the lower part of the fin assembly forms a "water bridge" between the fins, blocks the heat exchange channel, and causes the water to flow downward along the fins, the gap between the fins is occupied by the water, and the heat exchange effect is affected. The present scheme increases the gap between two adjacent fins in the lower fin group, so that the water gathered at the lower part of the fin assembly can flow downward and drip smoothly, thereby ensuring that the condensed water fully exchanges heat with the environment of the air inlet of the outdoor unit of the multi-split air conditioning system.

[0018] As preferred, the fins are zigzag distributed from top to bottom. In this way, the contact area and contact time of the condensed water and the fins can be further improved, thereby further improving the heat exchange effect.

[0019] As preferred, the surface of the fins is coated with a hydrophilic coating. In this way, the surface of the treated fins has hydrophilicity, the condensed water can rapidly spread on the surface of the fins, the condensed water evaporates quickly, the heat exchange is strengthened, thereby further improving the heat exchange effect, and effectively avoiding the formation of a "water bridge" in the fins. In addition, coating the surface of the fins with a hydrophilic coating can effectively prevent the fins from rusting and metal corrosion.

[0020] As preferred, it further comprises a water supplement pipeline connected to a municipal water pipeline, a pipeline automatic on-off valve is arranged on the water supplement pipeline, and a water level sensor is arranged in the water storage cavity. In this way, the water level in the water storage cavity can be detected by the water level sensor, when the water level in the water storage cavity is lower than the set value, the pipeline automatic on-off valve is opened to introduce municipal water into the water storage cavity; when the water level in the water storage cavity reaches the set value, the pipeline automatic on-off valve is closed. Based on this, it can ensure that there is enough water in the water storage cavity for cooling, and avoid that the condensed water discharged by the condensed water drainage pipe of the indoor unit is insufficient, thereby affecting the normal work of the outdoor unit of the multi-split air conditioning system.

[0021] As preferred, it further comprises a freeze protection unit, the freeze protection unit comprises an emptying pipeline and an electric heater for heating the water in the water storage cavity, the emptying pipeline is in communication with the bottom of the water storage cavity, and an emptying automatic on-off valve is arranged on the emptying pipeline. In a low temperature environment, for example, when the temperature sensor detects that the temperature of the fins is lower than 5 degrees, the electric heater is turned on to heat the water in the water storage cavity to prevent freezing, and at the same time, the emptying automatic on-off valve is opened to empty the water storage cavity through the emptying pipeline.

[0022] As preferred, the top of the water storage cavity of the condensate water collector 1 is provided with a filter. The condensate water discharged by the condensate water drain pipe 2 of the indoor unit is collected in the water storage cavity after passing through the filter. In this embodiment, the filter is an activated carbon filter device. The top of the water storage cavity of the condensate water collector is also provided with an ultraviolet sterilization lamp. In this way, impurities in the condensate water can be removed by the filter, and sterilization can be performed by the ultraviolet sterilization lamp.

[0023] As preferred, a humidity sensor for detecting air humidity is also included. In this way, the air humidity can be detected by the humidity sensor, and when the air humidity is greater than a set value, the water pump can be turned off, and the outdoor unit air-cooled cooling efficiency device of the multi-split air conditioner can be stopped.

[0024] As preferred, a condensate water recovery tank and a discharge pipeline in communication with the bottom of the condensate water recovery tank are also included. The condensate water recovery tank is arranged below the fin assembly to collect the water flowing down the fin assembly. During the operation of the outdoor unit air-cooled cooling efficiency device of the multi-split air conditioner, the water flowing down the fin assembly can be collected by the condensate water recovery tank and discharged to the sewer pipeline or rainwater recycling system through the discharge pipeline for later irrigation or ground washing.

[0025] The beneficial effects of the present utility model are:

[0026] Firstly, the condensate water of the air conditioner can be recovered, and the condensate water of the air conditioner can be used to cool the outdoor unit of the multi-split air conditioner, so that the cold energy in the condensate water of the air conditioner is utilized, the power consumption of the outdoor unit is reduced, energy-saving and efficient operation is ensured, the dependence on municipal water for spray cooling is reduced, the cost of municipal water softening treatment is greatly reduced, and the problem of calcium and magnesium in the spray water causing scaling on the fins and affecting the heat exchange effect of the outdoor unit of the air conditioner is effectively improved.

[0027] Secondly, the water gathered at the lower part of the fin assembly can be prevented from forming a "water bridge" between the fins, blocking the heat exchange channel, so that the water can flow down the fins and drop smoothly, thereby ensuring that the condensate water is fully heat-exchanged with the environment of the air inlet of the outdoor unit of the multi-split air conditioner. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structure schematic view of the outdoor unit air-cooled cooling efficiency device of the multi-split air conditioner based on air conditioner condensate water recovery in use.

[0029] Figure 2 is a partial structure schematic view of the outdoor unit air-cooled cooling efficiency device of the multi-split air conditioner based on air conditioner condensate water recovery.

[0030] Figure 3 is a structure schematic view of the fin assembly.

[0031] In the drawings:

[0032] condensate collector 1;

[0033] condensate drain pipe 2;

[0034] fin assembly 3, fin 3.0, upper fin group 3.1, lower fin group 3.2;

[0035] spraying device 4, atomizing nozzle 4.1, water pump 4.2, connecting pipe 4.3;

[0036] multi-split outdoor unit 5;

[0037] water replenishment pipeline 6;

[0038] municipal water pipeline 7;

[0039] condensate recovery pool 8;

[0040] anti-freezing protection unit 9, electric heater 9.1, emptying pipe 9.2. DETAILED DESCRIPTION

[0041] Specific embodiment one, as shown in Figure 1 、 Figure 2 A multi-split outdoor unit air-cooled cooling efficiency increasing equipment based on air conditioner condensate recovery, comprising a condensate collector 1, a fin assembly 3, a temperature sensor and a spraying device 4. The condensate collector 1 has a water storage cavity. The condensate collector 1 is arranged at the drainage end of the condensate drain pipe 2 of the indoor unit, and is used to collect the condensate discharged by the condensate drain pipe 2 of the indoor unit. The fin assembly 3 is arranged at the air inlet of the multi-split outdoor unit 5. The fin assembly 3 comprises a plurality of fins 3.0. The temperature sensor is used to detect the temperature of the fins 3.0 of the fin assembly 3. The spraying device 4 comprises an atomizing nozzle 4.1 with an opening facing the fin assembly 3, a connecting pipe 4.3 connecting the atomizing nozzle 4.1 and the water storage cavity of the condensate collector 1, and a water pump 4.2 arranged on the connecting pipe 4.3.

[0042] The specific working process of the multi-split outdoor unit air-cooled cooling efficiency increasing equipment based on air conditioner condensate recovery of the embodiment is as follows,

[0043] Firstly, the condensate discharged by the condensate drain pipe 2 of the indoor unit is collected by the condensate collector 1, and the condensate is stored in the water storage cavity of the condensate collector 1.

[0044] In the working process of the outdoor unit 5 of the multi-split air conditioner, the temperature of the fins 3.0 can be detected by the temperature sensor. When the temperature of the fins 3.0 is greater than a set value (for example, the temperature of the fins 3.0 is greater than 35 degrees), the water pump 4.2 works to spray water mist from the water storage cavity to the fin assembly 3 through the connecting pipeline 4.3 and the atomizing nozzle 4.1. The water mist can fully and closely contact the fins 3.0 of the fin assembly 3 to ensure that the condensed water fully exchanges heat with the environment at the air inlet of the outdoor unit 5 of the multi-split air conditioner, effectively reducing the temperature of the environment at the air inlet of the outdoor unit 5 of the multi-split air conditioner; thereby effectively reducing the inlet air temperature during the working process of the outdoor unit 5 of the multi-split air conditioner, and cooling the outdoor unit 5 of the multi-split air conditioner. At the same time, the spraying frequency and water quantity can also be adjusted according to the temperature of the outdoor unit fins 3.0. Thus, the multi-split air conditioner outdoor unit air cooling efficiency increasing device based on air conditioner condensed water recycling of the embodiment can recycle the air conditioner condensed water and use the air conditioner condensed water to cool the outdoor unit 5 of the multi-split air conditioner. In this way, the cold energy in the air conditioner condensed water can be used to reduce the power consumption of the outdoor unit, ensuring energy-efficient operation (according to relevant research, for every 1℃ reduction in the operating temperature of the outdoor unit, the power consumption per unit of refrigeration capacity will decrease by 3-4%, and the condensed water is a water resource containing cold energy. Using condensed water containing cold energy as the water source for spray cooling can further reduce the operating energy consumption of the outdoor unit and achieve energy-efficient operation); and the dependence on municipal water for spray cooling is reduced, greatly reducing the cost of municipal water softening treatment, and effectively improving the problem of calcium and magnesium in the spray water causing scaling on the fins and affecting the heat exchange effect of the air conditioner outdoor unit.

[0045] On the other hand, the evaporation speed of water mist is more than 300 times that of water droplets. The heat exchange can be accelerated from liquid to gas, thereby enhancing the heat dissipation effect, and part of the water mist can flow with the inlet air of the outdoor unit 5 of the multi-split air conditioner. The longer the contact time between the inlet air and the water, the more sufficient the heat exchange, and the closer the temperature of the inlet air to the wet-bulb temperature. The wet-bulb temperature is lower than the outdoor dry-bulb temperature, thereby enhancing the heat dissipation effect of the outdoor unit. Through experimental testing, it is found that the temperature at the fin air inlet of the outdoor unit can be reduced by 4-7.5 degrees in a very short time, the temperature at the outlet can be reduced by 2-4 degrees, and the power consumption of the outdoor unit can be reduced by about 7.8% with and without spray.

[0046] Specifically, as shown in Figure 1 , Figure 2 A multi-split air conditioner outdoor unit air cooling efficiency increasing device based on air conditioner condensed water recycling includes a condensed water collector 1, a fin assembly 3, a temperature sensor, and a spraying device 4.

[0047] The condensate water collector 1 has a water storage cavity. The condensate water collector 1 is arranged at the drainage end of the condensate water drain pipe 2 of the indoor unit, and is used to collect the condensate water discharged by the condensate water drain pipe 2 of the indoor unit. In this embodiment, the condensate water collector 1 is a condensate water collection tank or a condensate water collection basin or a condensate water collection groove, etc. The drainage end of the condensate water drain pipe 2 of the indoor unit is in communication with the water storage cavity of the condensate water collector 1.

[0048] The fin assembly 3 is arranged at the air inlet of the multi-split outdoor unit 5. The fin assembly 3 includes a plurality of fins 3.0.

[0049] In one example, the fin assembly 3 is fixed on the shell at the air inlet of the multi-split outdoor unit 5 by bolts or welding or rivets.

[0050] In another example, the fin assembly 3 is fixed on the equipment platform where the multi-split outdoor unit 5 is located, and the fin assembly 3 is located at the front side of the air inlet of the multi-split outdoor unit 5 and close to the air inlet of the multi-split outdoor unit 5.

[0051] The temperature sensor is used to detect the temperature of the fins 3.0 of the fin assembly 3.

[0052] The spraying device 4 includes atomizing nozzles 4.1 facing the fin assembly 3, connecting pipes 4.3 connecting the atomizing nozzles 4.1 and the water storage cavity of the condensate water collector 1, and water pumps 4.2 arranged on the connecting pipes 4.3. The number of atomizing nozzles 4.1 is one or more. In this embodiment, the number of atomizing nozzles 4.1 is multiple, for example, 2-8 atomizing nozzles 4.1. Each atomizing nozzle 4.1 is provided with a nozzle electromagnetic valve.

[0053] The specific working process of the multi-split outdoor unit air cooling and temperature reduction and efficiency increasing device based on air conditioner condensate water recovery of this embodiment is as follows,

[0054] Firstly, the condensate water discharged by the condensate water drain pipe 2 of the indoor unit is collected by the condensate water collector 1, and the condensate water is stored in the water storage cavity of the condensate water collector 1.

[0055] In the working process of the outdoor unit 5 of the multi-split air conditioner, the temperature of the fins 3.0 can be detected by the temperature sensor. When the temperature of the fins 3.0 is greater than a set value (for example, the temperature of the fins 3.0 is greater than 35 degrees), the water pump 4.2 works, the nozzle electromagnetic valve is opened, and the water in the water storage cavity is sprayed onto the fin assembly 3 through the connecting pipeline 4.3 and the atomizing nozzle 4.1. The water mist can fully and closely contact the fins 3.0 of the fin assembly 3 to ensure that the condensed water fully exchanges heat with the environment at the air inlet of the outdoor unit 5 of the multi-split air conditioner, effectively reducing the temperature of the environment at the air inlet of the outdoor unit 5 of the multi-split air conditioner; thereby effectively reducing the inlet air temperature during the working process of the outdoor unit 5 of the multi-split air conditioner, and cooling the outdoor unit 5 of the multi-split air conditioner. At the same time, the spraying frequency and water quantity can also be adjusted according to the temperature of the outdoor unit fins 3.0. Thus, the multi-split air conditioner outdoor unit air cooling efficiency increasing device based on air conditioner condensed water recycling of the embodiment can recycle the air conditioner condensed water and use the air conditioner condensed water to cool the outdoor unit of the multi-split air conditioner. In this way, the cold energy in the air conditioner condensed water can be used to reduce the power consumption of the outdoor unit, ensuring energy-efficient operation (according to relevant research, for every 1℃ reduction in the operating temperature of the outdoor unit, the power consumption per unit of refrigeration capacity will decrease by 3-4%, and the condensed water is a water resource containing cold energy. Using the condensed water containing cold energy as the water source for spray cooling can further reduce the operating energy consumption of the outdoor unit and achieve energy-efficient operation); and the dependence on municipal water for spray cooling is reduced, greatly reducing the cost of municipal water softening treatment, and effectively improving the problem of calcium and magnesium in the spray water causing scaling on the fins and affecting the heat exchange effect of the air conditioner outdoor unit.

[0056] On the other hand, the evaporation speed of water mist is more than 300 times that of water droplets. The heat exchange can be accelerated from liquid to gas, thereby enhancing the heat dissipation effect. Part of the water mist can flow with the inlet air of the outdoor unit 5 of the multi-split air conditioner. The longer the contact time between the inlet air and the water, the more sufficient the heat exchange, and the closer the temperature of the inlet air to the wet-bulb temperature. The wet-bulb temperature is lower than the outdoor dry-bulb temperature, thereby strengthening the heat dissipation effect of the outdoor unit to reduce the power consumption of the outdoor unit and achieve energy-efficient operation of the outdoor unit. Through experimental testing, it is found that the inlet air temperature of the fins of the outdoor unit of the multi-split air conditioner can be reduced by 4-7.5 degrees in a very short time after spraying, the outlet air temperature can be reduced by 2-4 degrees, and the power consumption of the outdoor unit can be reduced by about 7.8%.

[0057] Further, the fin assembly 3 includes a plurality of fins 3.0 arranged side by side.

[0058] In one embodiment of the present embodiment, as shown in Figure 2 , Figure 3As shown, the fin assembly 3 includes an upper fin group 3.1 and a lower fin group 3.2 located below the upper fin group 3.1. The upper fin group 3.1 includes a plurality of fins 3.0, and the fins 3.0 of the upper fin group 3.1 are equidistantly arranged side by side. The lower fin group 3.2 includes a plurality of fins 3.0, and the fins 3.0 of the lower fin group 3.2 are equidistantly arranged side by side. The fins 3.0 of both the upper fin group 3.1 and the lower fin group 3.2 extend vertically. The gap between two adjacent fins 3.0 in the lower fin group 3.2 is larger than the gap between two adjacent fins 3.0 in the upper fin group 3.1. Because excess water flows downwards and accumulates at the bottom of the fin assembly 3 after being sprayed onto the surface of the fins 3.0 of the fin assembly 3, this solution aims to prevent the water from forming a "water bridge" between the fins 3.0, blocking the heat exchange channel, and preventing the water from flowing downwards along the fins 3.0, thus occupying the gaps between the fins 3.0 and affecting the heat exchange effect. This solution increases the gap between two adjacent fins 3.0 in the lower fin assembly 3.2, allowing the water that accumulates at the bottom of the fin assembly 3 to flow downwards and drip smoothly, thereby ensuring sufficient heat exchange between the condensate and the air inlet of the multi-split outdoor unit 5.

[0059] In another embodiment of this invention, the fins 3.0 of the fin assembly 3 are arranged side by side. The fins 3.0 extend vertically. The gap between any two adjacent fins 3.0 gradually increases from top to bottom. Since excess water flows downwards and accumulates at the lower part of the fin assembly 3 after water mist is sprayed onto the surface of the fins 3.0, this solution avoids the water accumulating at the lower part of the fin assembly 3 forming a "water bridge" between the fins 3.0, blocking the heat exchange channel, and preventing water from flowing downwards along the fins 3.0, thus occupying the gaps between the fins 3.0 and affecting the heat exchange effect. This solution gradually increases the gap between the fins 3.0 from top to bottom, allowing the water accumulating at the lower part of the fin assembly 3 to flow downwards and drip smoothly, thereby ensuring sufficient heat exchange between the condensate and the environment at the air inlet of the multi-split outdoor unit 5.

[0060] Furthermore, such as Figure 2 , Figure 3 As shown, the fins 3.0 are distributed in a zigzag pattern from top to bottom. This further increases the contact area and contact time between the condensate and the fins 3.0, making the air conditioner's intake air temperature closer to the wet-bulb temperature (the temperature under water saturation). The wet-bulb temperature is significantly lower than the outdoor dry-bulb temperature, i.e., lower than the intake air temperature of the original outdoor unit without cooling measures, thereby further improving the heat exchange effect. In this embodiment, the fins 3.0 are distributed in a Z-shape from top to bottom.

[0061] Further, the fin 3.0 is coated with a hydrophilic coating. In this way, the surface of the treated fin 3.0 is hydrophilic, and the condensed water can quickly spread on the surface of the fin 3.0, accelerating the evaporation of the condensed water, strengthening the heat exchange, thereby further improving the heat exchange effect, and effectively avoiding the formation of "water bridge" in the fin 3.0. In addition, coating the surface of the fin 3.0 with a hydrophilic coating can also effectively prevent the fin 3.0 from rusting and metal corrosion.

[0062] Further, the top of the water storage cavity of the condensed water collector 1 is provided with a filter. The condensed water discharged from the condensed water drain pipe 2 of the indoor unit passes through the filter and is collected in the water storage cavity. In this embodiment, the filter is an activated carbon filter device, and of course the filter can also be other filters in the prior art, such as a PP filter core filter. The top of the water storage cavity of the condensed water collector is also provided with an ultraviolet sterilization lamp. In this way, impurities in the condensed water can be removed by the filter, and sterilization can be performed by the ultraviolet sterilization lamp.

[0063] In a third embodiment, the remaining structure of this embodiment refers to the first embodiment or the second embodiment, and the difference is that,

[0064] As shown in Figure 2 , the air-cooled cooling efficiency increasing equipment for multi-split outdoor unit based on air conditioner condensed water recovery also includes a water supplement pipeline 6. The water supplement pipeline 6 is connected to a municipal water pipeline 7. The water supplement pipeline 6 is provided with a pipeline automatic on-off valve. A water level sensor is arranged in the water storage cavity. In this way, the water level in the water storage cavity can be detected by the water level sensor, and when the water level in the water storage cavity is lower than the set value, the pipeline automatic on-off valve is opened to introduce municipal water into the water storage cavity; when the water level in the water storage cavity reaches the set value, the pipeline automatic on-off valve is closed. Based on this, it can be ensured that there is enough water in the water storage cavity for cooling, and the condensed water discharged from the condensed water drain pipe 2 of the indoor unit is sufficient, so as to avoid affecting the normal work of the air-cooled cooling efficiency increasing equipment for multi-split outdoor unit 5.

[0065] Further, the air-cooled cooling efficiency increasing equipment for multi-split outdoor unit based on air conditioner condensed water recovery also includes a humidity sensor for detecting air humidity. In this way, the air humidity can be detected by the humidity sensor. The humidity sensor and the temperature sensor can work together to better control the air-cooled cooling efficiency increasing equipment for multi-split outdoor unit 5, for example, when the temperature sensor detects that the temperature of the fin 3.0 is greater than 35 degrees, and the humidity sensor detects that the air humidity RH is greater than 70%, the air-cooled cooling efficiency increasing equipment for multi-split outdoor unit 5 is controlled to start working. When the air humidity is greater than a set value (for example, when the air humidity RH is greater than 70%), the water pump 4.2 can be turned off, so that the air-cooled cooling efficiency increasing equipment for multi-split outdoor unit 5 stops working.

[0066] Further, as shown in Figure 2As shown, the air-cooled cooling and efficiency increasing device for the outdoor unit of the multi-connected air conditioner based on air conditioner condensate water recovery further comprises a condensate water recovery pool 8 and a discharge pipeline in communication with the bottom of the condensate water recovery pool 8. The condensate water recovery pool 8 is arranged below the fin assembly 3 to collect the water flowing down from the fin assembly 3. During the working process of the air-cooled cooling and efficiency increasing device for the outdoor unit of the multi-connected air conditioner 5, the water flowing down from the fin assembly 3 can be collected by the condensate water recovery pool 8 and discharged to a sewer pipeline or a rainwater recovery system through the discharge pipeline.

[0067] Further, as shown, Figure 2 As shown, the air-cooled cooling and efficiency increasing device for the outdoor unit of the multi-connected air conditioner based on air conditioner condensate water recovery further comprises a freeze protection unit 9. The freeze protection unit 9 comprises a discharge pipeline 9.2 and an electric heater 9.1 for heating the water in the water storage cavity. The discharge pipeline is in communication with the bottom of the water storage cavity, and an automatic discharge on-off valve is arranged on the discharge pipeline. In a low temperature environment, for example, when the temperature sensor detects that the temperature of the fin 3.0 is lower than 5 degrees, the electric heater is turned on to heat the water in the water storage cavity to prevent freezing, and at the same time, the automatic discharge on-off valve is turned on to discharge the water storage cavity through the discharge pipeline.

[0068] In this embodiment, the discharge pipeline is in communication with the condensate water recovery pool 8. Of course, the discharge pipeline can also be directly in communication with the sewer pipeline or the rainwater recovery system to directly discharge the water to the sewer pipeline or the rainwater recovery system. The water recovered to the rainwater recovery system can be used for subsequent greening irrigation and ground washing.

[0069] The above is only a preferred embodiment of the present application, and does not limit the present application in any way. Any simple modification, change and equivalent transformation of the above embodiment according to the technical essence of the present application still fall within the protection scope of the technical solution of the present application.

Claims

1. A multi-split outdoor unit air-cooled cooling efficiency device based on air conditioner condensate water recovery, characterized in that, The application relates to a condensate water collector with a water storage cavity, which is arranged at the drainage end of a condensate water drainage pipe of an indoor unit and collects the condensate water discharged by the condensate water drainage pipe. The fin assembly is arranged at an air inlet of an outdoor unit of a multi-connected unit, and comprises a plurality of fins. A temperature sensor is arranged to detect the fin temperature. The spraying device comprises an atomizing nozzle with an opening facing the fin assembly, a connecting pipeline connecting the atomizing nozzle and the water storage cavity of the condensate water collector, and a water pump arranged on the connecting pipeline. The fins of the fin assembly are arranged side by side, and each fin extends upwards and downwards; the gap between any two adjacent fins gradually increases from top to bottom.

2. The air-cooled cooling enhancement device for a multi-split outdoor unit based on air conditioner condensate water recovery according to claim 1, characterized in that, The fin assembly comprises an upper fin group and a lower fin group arranged below the upper fin group; the upper fin group comprises a plurality of fins, and the fins of the upper fin group are arranged side by side at equal intervals; the lower fin group comprises a plurality of fins, and the fins of the lower fin group are arranged side by side at equal intervals; the fins of the upper fin group and the lower fin group extend upwards and downwards; the gap between any two adjacent fins in the lower fin group is greater than the gap between any two adjacent fins in the upper fin group.

3. The air-cooled cooling enhancement device for a multi-split outdoor unit based on air conditioner condensate water recovery according to claim 1, characterized in that, The fins extend in a zigzag manner from top to bottom.

4. The air-cooled cooling enhancement device for a multi-split outdoor unit based on air conditioner condensate water recovery according to claim 1 or 2 or 3, characterized in that, The surface of the fin is coated with a hydrophilic coating.

5. The air-cooled cooling enhancement device for a multi-split outdoor unit based on air conditioner condensate water recovery according to claim 1 or 2 or 3, characterized in that, The application further comprises a water supplement pipeline connected to a municipal water pipeline, and a pipeline automatic switch valve is arranged on the water supplement pipeline; a water level sensor is arranged in the water storage cavity.

6. The air-cooled cooling enhancement device for a multi-split outdoor unit based on air conditioner condensate water recovery according to claim 1 or 2 or 3, characterized in that, The application further comprises a freeze protection unit, which comprises an emptying pipeline and an electric heater for heating the water in the water storage cavity; the emptying pipeline is in communication with the bottom of the water storage cavity, and an emptying automatic switch valve is arranged on the emptying pipeline.

7. The air-cooled cooling enhancement device for a multi-split outdoor unit based on air conditioner condensate water recovery according to claim 1 or 2 or 3, characterized in that, A filter is arranged at the top of the water storage cavity of the condensate water collector; the condensate water discharged by the condensate water drainage pipe of the indoor unit is collected in the water storage cavity after passing through the filter; and an ultraviolet sterilization lamp is arranged at the top of the water storage cavity of the condensate water collector.

8. The air-cooled cooling enhancement device for a multi-split outdoor unit based on air conditioner condensate water recovery according to claim 1 or 2 or 3, characterized in that, The application further comprises a humidity sensor for detecting air humidity.

9. The air-cooled cooling enhancement device for a multi-split outdoor unit based on air conditioner condensate water recovery according to claim 1 or 2 or 3, characterized in that, The application further comprises a condensate water recovery tank and a discharge pipeline in communication with the bottom of the condensate water recovery tank; the condensate water recovery tank is arranged below the fin assembly and collects the water flowing down from the fin assembly.

10. The air-cooled cooling enhancement device for a multi-split outdoor unit based on air conditioner condensate water recovery according to claim 1 or 2 or 3, characterized in that, ​

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