CN115289616A - Spray system, air conditioner and spray system control method - Google Patents

Abstract

The present application provides a spray system, an air conditioner, and a spray control method, wherein the spray system includes: a water inlet pipe; After the water spray is mixed, a mixed solution is formed, and the chemical potential of the mixed solution is lower than that of water; the nozzle, connected to the water outlet of the water inlet pipe, is used to spray spray water or mixed solution to the heat exchanger of the outdoor unit of the air conditioner. Through the technical solution of the present application, the outdoor heat exchanger can be sprayed and cooled when the air conditioner is refrigerating, and the outdoor heat exchanger can be defrosted when the air conditioner is heating, thereby effectively improving the cooling or heating efficiency of the air conditioner, and It helps to reduce the energy consumption of the air conditioner and improve the user experience.

Description

Sprinkler system, air conditioner and sprinkler system control method

technical field

The present application relates to the technical field of air conditioning, in particular, to a sprinkler system, an air conditioner and a method for controlling the sprinkler system.

Background technique

At present, air conditioners are widely used in people's production and life. Air conditioners are not only used for cooling in summer, but also for heating in winter.

When it is necessary to defrost the heat exchanger in winter, in related technologies, the purpose of defrosting is achieved by controlling the reverse cycle of the refrigerant. At this time, the indoor unit usually cannot continue to supply heat. This method not only increases the Overall energy consumption, while also reducing user comfort.

Contents of the invention

The purpose of the embodiments of the present application is to provide a spray system, which is used to cool down the outdoor heat exchanger when the air conditioner is cooling, and to defrost the outdoor heat exchanger when the air conditioner is heating, so as to effectively improve the performance of the air conditioner. Improve cooling or heating efficiency, and reduce the energy consumption of air conditioners.

The embodiment of the first aspect of the present application provides a spraying system, including: a water inlet pipe; a solvent pipe connected to the water inlet pipe for providing added solvent, the added solvent and the spray in the water inlet pipe The water is mixed to form a mixed solution, the chemical potential of the mixed solution is lower than the chemical potential of water; the nozzle is connected to the water outlet of the water inlet pipe, and is used to spray spray water or the water to the heat exchanger of the air conditioner outdoor unit. mixture.

In the above implementation process, the spraying system includes a water inlet pipe, a solvent pipe and a nozzle. Wherein, one end of the water inlet pipe is connected with the water source, and the other end is connected with the water inlet pipe, and the injection port of the nozzle faces the heat exchanger. In this way, when the air conditioner is cooling, the refrigerant flows to the heat exchanger of the outdoor unit of the air conditioner after absorbing heat. When the temperature of the heat exchanger rises, the refrigeration efficiency will decrease at this time. Then spray water to the heat exchanger, and the spray water absorbs heat and evaporates on the surface of the heat exchanger, thereby cooling the heat exchanger and improving the performance of the air conditioner. cooling efficiency. In addition, by connecting the solvent pipe to the water inlet pipe, the solvent pipe is used to provide the added solvent, and the chemical potential of the mixed solution formed after the added solvent is mixed with the spray water is lower than that of water (frost). , the heat exchanger of the outdoor unit produces condensed water. Frosting will occur on the surface of the heat exchanger due to the low outdoor temperature. By spraying the mixed solution to the heat exchanger, since the chemical potential of the mixed solution is lower than that of water, at this time The frost on the surface of the heat exchanger can automatically frost after contacting with the mixed solution, thereby improving the heating efficiency of the air conditioner. At the same time, it can avoid the situation that the indoor unit cannot supply heat normally due to defrosting by controlling the reverse cycle of the refrigerant. The overall energy consumption of the air conditioner is reduced, and the user's comfort is improved.

Exemplarily, the added solvent may be alcohol or salt water, etc. Of course, antifreeze and other substances for preventing the added solvent from freezing may also be added to the added solvent.

In a possible implementation manner, the water inlet pipe is provided with a first control switch, and the solvent pipe is provided with a second control switch; the spray system further includes a controller, and the controller is connected to the The first control switch is electrically connected to the second control switch, and is used to control the opening or closing of the first control switch and/or the second control switch.

In the above implementation process, by setting the first control switch and the second control switch on the water inlet pipe and the solvent pipe respectively, and setting the controller electrically connected with the first control switch and the second control switch, the controller controls the first The control switch is turned on or off, so as to control the on-off of the spray water; the controller controls the second control switch to be turned on or off, so as to control whether the added solvent and the spray water are mixed, so that the automatic control of spraying the spray to the heat exchanger can be realized. Sprinkling water or mixing solutions improves the automation level of the product.

In a possible implementation manner, the sprinkler system further includes: a pressure sensor, which is arranged on the suction pipe of the compressor of the outdoor unit of the air conditioner and is electrically connected to the controller, and the controller is used to When the pressure sensor detects that the suction pressure of the compressor is lower than a preset pressure threshold and the air conditioner is in a heating mode, control to turn on the first control switch and the second control switch.

In the above implementation process, by setting a pressure sensor electrically connected to the controller in the heat exchanger, the pressure sensor can detect the suction pressure of the compressor in real time, and can detect the suction pressure of the compressor when the suction pressure of the compressor is lower than the preset pressure threshold. In this case, a spray signal is sent to the controller, at this time, the controller controls to open the first control switch and the second control switch, so that the added solvent is mixed with the spray water, and the mixed solution is sprayed to the surface of the heat exchanger through the nozzle, In this way, the defrosting of the heat exchanger is realized.

It can be understood that when the suction pressure of the compressor is lower than the preset pressure threshold and the controller controls to turn on the first control switch and the second control switch to defrost the heat exchanger, the air conditioner is in a heating state at this time.

In a possible implementation manner, the sprinkler system further includes a control box, the control box is set on the outdoor unit, and the controller, the first control switch and the second control switch are all set in the control box.

In the above implementation process, the sprinkler system also includes a control box arranged on one side of the width direction of the air conditioner outdoor unit, and the controller, the first control switch and the second control switch are integrated in the control box, then the control box It can protect the controller, the first control switch and the second control switch, and prevent the controller, the first control switch and the second control switch from being exposed to damage during transportation or use.

It can be understood that a control panel can be arranged in the control box, and the integrator is arranged on the control panel.

In a possible implementation manner, the sprinkler system further includes: a heating device, at least part of the water inlet pipe is located inside the heating device.

In the above implementation process, the sprinkler system also includes a heating device, which covers at least part of the outer surface of the water inlet pipe, and is used to heat the mixed solution in the pipe before defrosting, so as to avoid freezing of the solution in the water inlet pipe Finally, the water inlet pipe is blocked to ensure the reliable defrosting of the heat exchanger.

It can be understood that the solution in the water inlet pipe may be a mixed solution, or a spray liquid used for spraying and cooling the outdoor heat exchanger during cooling of the air conditioner.

Exemplarily, the heating device includes a heating water tank, and an electric heating wire or a heating tube is arranged in the water tank for heating the water in the water tank, so that the mixed solution in the water inlet pipe can be heated.

In a possible implementation manner, the heating device is disposed close to the nozzle side.

In the above implementation process, since the mixed solution is easy to remain in a section of the water inlet pipe close to the nozzle after each defrosting, the heating device is installed near the nozzle side and covered on this section of the water inlet pipe, so that it can be heated before each defrosting The mixed solution in this section of water inlet pipe is heated to prevent the solution in this section of water inlet pipe from freezing and blocking the water inlet pipe, so as to ensure the stable progress of defrosting.

In a possible implementation manner, the height of the water inlet end of the water inlet pipe located in the heating device is not lower than the water outlet end.

In the above implementation process, the height of the water inlet end of the water inlet pipe located in the heating device is not lower than the water outlet pipe, and the mixed solution after each defrosting can be stored in the water inlet pipe, so that the heating device can heat the mixed solution, and To ensure the normal circulation of the mixed solution in the water inlet pipe, the structure and principle are relatively simple and easy to realize.

Exemplarily, the water inlet pipe located in the heating device has a U-shaped or spiral structure, which is convenient for storing the solution after each defrosting.

In a possible implementation manner, one end of the solvent pipe is connected to a solvent box, and the added solvent is stored in the solvent box, and the other end of the solvent pipe is connected to the water inlet pipe.

In the above implementation process, by setting the solvent box at the end of the solvent pipe away from the water inlet pipe, the added solvent is stored in the solvent box, so that it is convenient to pass the added solvent into the water inlet pipe. When the added solvent in the solvent box is insufficient, directly replace Just slide the solvent box or add solvent to the solvent box, which improves the convenience of product use, and is convenient for transportation and installation.

The embodiment of the second aspect of the present application provides an air conditioner, including: an outdoor unit, the outdoor unit is provided with a heat exchanger; and the spray system according to any one of the embodiments of the first aspect, the spray The shower system is used to spray spray water or mixed solution to the heat exchanger.

The air conditioner provided by the embodiment of the second aspect of the present application includes the spraying system described in any one of the technical solutions of the first aspect, so it has the technical effect of any of the above technical solutions, and will not be repeated here.

The embodiment of the third aspect of the present application provides a sprinkler system control method. The sprinkler system includes a water inlet pipe, a solvent pipe, a nozzle, a controller, and a pressure sensor. The water inlet pipe is connected to a nozzle, and the spraying of the nozzle The port faces the heat exchanger, the solvent pipe is connected with the water inlet pipe for providing additional solvent, the chemical potential of the mixed solution formed after the addition solvent is mixed with the spray water is lower than that of water, and the water inlet pipe A first control switch and a second control switch are respectively arranged on the solvent pipe, and the controller is electrically connected to the first control switch, the second control switch and the pressure sensor respectively, and the pressure sensor For detecting the suction pressure of the compressor of the outdoor unit of the air conditioner, the method includes: acquiring the operating conditions of the air conditioner, the operating conditions include cooling and heating; when the operating conditions are heating , the controller controls the opening of the first control switch and the second control switch, so that the added solvent in the solvent pipe is mixed with the spray water in the water inlet pipe to form a mixed solution, and the mixed solution is The solution is sprayed to the heat exchanger of the outdoor unit through the nozzle.

In the above implementation process, when the air conditioner is in heating mode, when the condensed water of the outdoor unit flows to the heat exchanger, due to the low outdoor temperature, the surface of the heat exchanger will frost, and the first control switch and the second control switch are turned on by control. By controlling the switch, the mixed solution can be sprayed to the heat exchanger through the nozzle. Since the chemical potential of the mixed solution is lower than that of water, the frost on the surface of the heat exchanger can automatically frost after contacting the mixed solution, thereby improving Air conditioning heating efficiency.

In a possible implementation manner, the controller controls the opening of the first control switch and the second control switch, so that the added solvent in the solvent pipe is mixed with the spray water in the water inlet pipe Before forming the mixed solution and spraying the mixed solution to the heat exchanger of the outdoor unit through the nozzle, it also includes: the pressure sensor detects the suction pressure of the compressor, when the suction pressure is lower than the preset When the pressure threshold is set, the controller controls to turn on the first control switch and the second control switch.

In the above implementation process, when the air conditioner is in heating mode, the outdoor heat exchanger absorbs heat and evaporates to produce condensed water, which condenses and adheres to the heat exchanger, affecting the heat exchange effect. At this time, the pressure sensor detects that the compressor When the suction pressure is lower than the preset pressure threshold, it means that the heat exchanger needs to defrost, then the pressure sensor sends a spray signal to the controller, and the controller opens the first control switch and the second control switch after receiving the spray signal. Control the switch, so as to realize the defrosting of the heat exchanger by spraying the mixed solution, which effectively improves the automation level of the heat exchanger defrosting.

In a possible implementation manner, the method further includes: when the pressure sensor detects that the inspiratory pressure is not lower than the preset pressure threshold, the controller controls to turn off the first control switch and the second control switch.

In the above implementation process, when the pressure detector detects that the suction pressure of the compressor has returned to the preset pressure threshold after defrosting for a period of time, the pressure detector sends a signal to the controller to stop spraying, and the controller controls the shutdown at this time. The first control switch and the second control switch stop feeding the mixed solution into the water inlet pipe, that is, stop defrosting.

In a possible implementation manner, the method further includes: when the operating condition is cooling, the controller controls to turn off the second control switch and turn on the first control switch.

In the above implementation process, when the air conditioner is in the cooling condition, the surface temperature of the heat exchanger is high at this time, and there is no need to defrost. The solvent is added into the water pipe, and the spray water is passed into the water inlet pipe. At this time, the nozzle only sprays the spray water to the heat exchanger, and the spray water absorbs heat and evaporates on the surface of the heat exchanger, thereby realizing the cooling of the heat exchanger. , to effectively improve the cooling efficiency of the air conditioner.

In a possible implementation manner, the compressor discharge pipe of the outdoor unit is provided with a first temperature sensor, the outdoor unit is provided with a second temperature sensor, and the first temperature sensor and the second temperature The sensor is electrically connected to the controller, and before the controller controls to turn off the second control switch and turn on the first control switch, it also includes: the first temperature sensor detects the temperature of the compressor of the air conditioner The exhaust temperature of the outdoor unit is detected by the second temperature sensor; the controller detects that the exhaust gas temperature is greater than the first preset temperature threshold when the first temperature sensor detects, and the second When the second temperature sensor detects that the ambient temperature reaches a second preset temperature threshold, the second control switch is controlled to be turned off, and the first control switch is turned on.

In the above implementation process, when the air conditioner is in cooling mode, and when the first temperature sensor detects that the discharge temperature of the compressor is greater than the first preset temperature threshold, the second temperature sensor detects that the ambient temperature reaches the second preset In the case of temperature threshold, it indicates that the heat exchanger needs to be sprayed to cool down. At this time, the controller controls to close the second control switch to prevent the addition of solvent from entering the water inlet pipe, and turn on the first control switch to make the spray water flow into the water inlet pipe. , so that the heat exchanger can be sprayed and cooled through the nozzle.

In a possible implementation manner, a heating device is provided on the water inlet pipe close to the nozzle, and a third temperature sensor is provided in the heating device, and the controller controls the first control switch and the second temperature sensor. The second control switch is turned on, so that the added solvent in the solvent pipe is mixed with the spray water in the water inlet pipe to form a mixed solution, and the mixed solution is sprayed to the heat exchanger of the outdoor unit through the nozzle, and then The method includes: the third temperature sensor detects the temperature of the mixed solution in the water inlet pipe; if the temperature of the mixed solution is lower than a preset temperature threshold, the heating device is activated.

In the above implementation process, when it is necessary to defrost the heat exchanger, since the end of the water inlet pipe close to the nozzle will store the mixed solution after each defrost, the third temperature sensor can be used to detect the mixed solution in this section of the water inlet pipe before defrosting. The temperature of the solution. When it is detected that the temperature of the mixed solution in the water inlet pipe is lower than the preset temperature threshold, the heating device will heat the mixed solution in the water inlet pipe at this time, thereby improving the defrosting effect of the mixed solution and ensuring spraying. The system can reliably defrost the heat exchanger.

The spray system provided by the embodiment of the first aspect of the application can not only spray spray water to the outdoor heat exchanger when the air conditioner is cooling, so as to cool down the heat exchanger, thereby improving the cooling efficiency of the air conditioner; The solvent pipe connected to the water pipe is used to feed the added solvent into the water inlet pipe. The chemical potential of the mixed solution formed after the added solvent is mixed with the spray water is lower than the chemical potential of the frost, so it can be used for heating when the air conditioner is heated. The outdoor heat exchanger sprays the mixed solution to defrost the heat exchanger, thereby improving the heating efficiency of the heat exchanger. At the same time, it can avoid the failure of the indoor unit to supply heat normally due to defrosting by controlling the reverse cycle of the refrigerant. The situation occurs, which reduces the overall energy consumption of the air conditioner and improves the comfort of the user.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings that need to be used in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, so It should not be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings according to these drawings without creative work.

Fig. 1 is a schematic diagram of the assembly structure of a perspective of the sprinkler system provided by some embodiments of the present application;

FIG. 2 is a schematic diagram of an assembly structure from another perspective of the spray system provided by the embodiment of the present application;

Fig. 3 is a schematic cross-sectional structure diagram of A-A direction in Fig. 2;

Fig. 4 is a schematic flow chart of a spray control method provided by some embodiments of the present application;

Wherein, the arrows in FIG. 1 and FIG. 3 indicate the flow direction of the spray liquid.

Icons: 100, outdoor unit; 200, heat exchanger; 10, water inlet pipe; 101, first control switch; 20, nozzle; 30, solvent pipe; 301, second control switch; 40, control box; 50, heating device ; 60, solvent box.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

Please refer to Fig. 1 to Fig. 3, according to some embodiments of the present application, the embodiment of the first aspect of the present application provides a spraying system, including: a water inlet pipe 10; a solvent pipe 30, which communicates with the water inlet pipe 10 for Adding solvent is provided, and the adding solvent and the spray water in the water inlet pipe 10 are mixed to form a mixed solution, and the chemical potential of the mixed solution is lower than that of water; the nozzle 20 is connected with the water outlet of the water inlet pipe 10, and is used for spraying water to the outside of the air conditioner. The heat exchanger 200 of the machine 100 sprays spray water or a mixed solution.

In the above implementation process, the spraying system includes a water inlet pipe 10 , a solvent pipe 30 and a nozzle 20 . Wherein, one end of the water inlet pipe 10 is connected with the water source, and the other end is connected with the water inlet pipe 10, and the injection port of the nozzle 20 faces the heat exchanger 200, so that when the air conditioner is cooling, the refrigerant flows to the heat exchanger of the air conditioner outdoor unit 100 after absorbing heat. When the heat exchanger 200 is used, the temperature of the heat exchanger 200 rises, and the cooling efficiency will decrease at this time. Then, by spraying spray water to the heat exchanger 200, the spray water absorbs heat and evaporates on the surface of the heat exchanger 200, thereby improving the heat exchange efficiency. The temperature of the air conditioner 200 is lowered, thereby improving the cooling efficiency of the air conditioner. In addition, by connecting the solvent pipe 30 on the water inlet pipe 10, the solvent pipe 30 is used to provide the added solvent, and the chemical potential of the mixed solution formed after the added solvent is mixed with the spray water is lower than the chemical potential of water (frost), then when When the air conditioner is heating, the heat exchanger 200 of the outdoor unit produces condensed water. Because the outdoor temperature is low, frost will form on the surface of the heat exchanger 200. By spraying the mixed solution to the heat exchanger 200, since the chemical potential of the mixed solution is compared The chemical potential is low. At this time, the frost on the surface of the heat exchanger 200 can automatically frost after contacting the mixed solution, thereby improving the heating efficiency of the air conditioner. The failure of normal heating occurs, which reduces the overall energy consumption of the air conditioner and improves user comfort.

Exemplarily, the added solvent may be alcohol or salt water, etc. Of course, antifreeze and other substances for preventing the added solvent from freezing may also be added to the added solvent.

Please refer to Fig. 3, in a possible implementation, the water inlet pipe 10 is provided with a first control switch 101, and the solvent pipe 30 is provided with a second control switch 301; the spray system also includes a controller (not shown in the figure) Out), the controller is electrically connected to the first control switch 101 and the second control switch 301, and is used to control the opening or closing of the first control switch 101 and/or the second control switch 301.

In the above implementation process, by setting the first control switch 101 and the second control switch 301 respectively on the water inlet pipe 10 and the solvent pipe 30, and setting a controller electrically connected to the first control switch 101 and the second control switch 301, The controller controls the opening or closing of the first control switch 101, thereby controlling the on-off of the spray water; the controller controls the opening or closing of the second control switch 301, thereby controlling whether the added solvent is mixed with the spray water, thereby realizing Automatic control sprays spray water or mixed solution to the heat exchanger 200, which improves the automation level of the product.

In a possible implementation manner, the sprinkler system further includes: a pressure sensor, which is arranged on the compressor suction pipe of the outdoor unit of the air conditioner and is electrically connected to the controller. When the suction pressure of the air conditioner is lower than the preset pressure threshold and the air conditioner is in the heating mode, the first control switch 101 and the second control switch 301 are controlled to be turned on.

In the above implementation process, by setting a pressure sensor electrically connected to the controller in the heat exchanger 200, the pressure sensor can detect the suction pressure of the compressor in real time, and can detect the suction pressure of the compressor when the suction pressure of the compressor is lower than the preset pressure threshold. In the case of , send a spray signal to the controller, at this time, the controller controls to open the first control switch 101 and the second control switch 301, so that the added solvent is mixed with the spray water, and is sent to the heat exchanger 200 through the nozzle 20 The mixed solution is sprayed on the surface so as to defrost the heat exchanger 200 .

It can be understood that when the suction pressure of the compressor is lower than the preset pressure threshold, the controller controls to turn on the first control switch 101 and the second control switch 301 to defrost the heat exchanger 200, and at this time the air conditioner is in refrigeration mode. hot state.

Please refer to FIG. 1 to FIG. 3 , in a possible implementation, the sprinkler system further includes a control box 40, the control box 40 is arranged on the outdoor unit 100, the controller, the first control switch 101 and the second control switch 301 They are all arranged in the control box 40 .

In the above implementation process, the sprinkler system also includes a control box 40 arranged on the air conditioner outdoor unit 100, and the controller, the first control switch 101 and the second control switch 301 are integrated in the control box 40, then the control box 40 can protect the controller, the first control switch 101 and the second control switch 301, and prevent the controller, the first control switch 101 and the second control switch 301 from being exposed to damage during transportation or use.

It can be understood that a control panel can be arranged in the control box 40, and the integrator is arranged on the control panel.

Please refer to FIG. 1 to FIG. 3 , in a possible implementation manner, the sprinkler system further includes: a heating device 50 , at least part of the water inlet pipe 10 is located inside the heating device 50 .

In the above implementation process, the sprinkler system also includes a heating device 50, which covers at least part of the outer surface of the water inlet pipe 10, and is used to heat the mixed solution in the pipe before defrosting, so as to avoid the internal heating of the water inlet pipe 10. After the solution freezes, the water inlet pipe 10 is blocked, thereby ensuring the reliable defrosting of the heat exchanger 200 .

It can be understood that the solution in the water inlet pipe 10 may be a mixed solution, or a spray liquid used for spraying and cooling the outdoor heat exchanger during cooling of the air conditioner.

Exemplarily, the heating device 50 includes a heating water tank, and an electric heating wire or a heating tube is arranged in the water tank for heating the water in the water tank, so as to heat the mixed solution in the water inlet pipe 10 .

Please refer to FIG. 1 to FIG. 3 , in a possible implementation manner, the heating device 50 is disposed near the nozzle 20 .

In the above implementation process, since the mixed solution is easy to remain in a section of the water inlet pipe 10 close to the nozzle 20 after each defrosting, the heating device 50 is arranged near the nozzle side and covered on the section of the water inlet pipe 10, so that it can be used every time Before the first defrosting, the mixed solution in the water inlet pipe 10 of this section is heated to avoid the solution in the water inlet pipe 10 of this section freezing and blocking the water inlet pipe 10, thereby ensuring the stable progress of defrosting.

Please refer to FIG. 3 , in a possible implementation manner, the height of the water inlet end of the water inlet pipe 10 located in the heating device 50 is not lower than the water outlet end.

In the above implementation process, by setting the height of the water inlet end of the water inlet pipe 10 in the heating device 50 to be not lower than the water outlet pipe, the mixed solution after each defrosting can be stored in the section of the water inlet pipe 10, In order to facilitate the heating device 50 to heat the mixed solution and ensure the normal circulation of the mixed solution in the water inlet pipe 10, the structure and principle are relatively simple and easy to implement.

Exemplarily, the water inlet pipe located in the heating device 50 has a U-shaped or spiral structure, which is convenient for storing the solution after each defrosting.

Please refer to FIG. 1 to FIG. 3 , in a possible implementation manner, one end of the solvent pipe 30 is connected to a solvent box 60 , and the added solvent is stored in the solvent box 60 , and the other end of the solvent pipe 30 is connected to the water inlet pipe 10 .

In the above implementation process, by setting the solvent box 60 at the end of the solvent pipe 30 away from the water inlet pipe 10, the added solvent is stored in the solvent box 60, so that the added solvent can be conveniently passed into the water inlet pipe 10. When adding solvent in the solvent box 60 When the solvent is insufficient, it is enough to directly replace the solvent box 60 or add solvent to the solvent box 60, which improves the convenience of product use, and is convenient for transportation and installation.

According to some embodiments of the present application, the embodiment of the second aspect of the present application provides an air conditioner, including: an outdoor unit 100, and the outdoor unit 100 is provided with a heat exchanger 200; and any one of the embodiments of the first aspect Spray system, the spray system is used to spray spray water or mixed solution to the heat exchanger 200 .

The air conditioner provided by the embodiment of the second aspect of the present application includes the spraying system of any one of the technical solutions of the first aspect, so it has the technical effect of any one of the above technical solutions, and will not be repeated here.

Please refer to FIG. 4 , according to some embodiments of the present application, the embodiment of the third aspect of the present application provides a spraying system control method, the spraying system includes a water inlet pipe 10, a solvent pipe 30, a nozzle 20, a controller and a pressure sensor , the water inlet pipe 10 is connected with a nozzle 20, the injection port of the nozzle 20 faces the heat exchanger 200, the solvent pipe 30 is connected with the water inlet pipe 10, and is used to provide an added solvent, the chemical composition of the mixed solution formed after the added solvent is mixed with the spray water The potential is lower than that of water, and the water inlet pipe 10 and the solvent pipe 30 are respectively provided with a first control switch 101 and a second control switch 301, and the controller is electrically connected with the first control switch 101, the second control switch 301 and the pressure sensor respectively, The pressure sensor is used to detect the suction pressure of the compressor of the outdoor unit 100 of the air conditioner. The method includes: acquiring the operating conditions of the air conditioner, the operating conditions include cooling and heating; when the operating conditions are heating, the controller controls the first A control switch 101 and a second control switch 301 are turned on, so that the added solvent in the solvent pipe 30 is mixed with the spray water in the water inlet pipe 10 to form a mixed solution, and the mixed solution is sprayed to the heat exchange of the outdoor unit 100 through the nozzle 20 device 200.

In the above implementation process, when the air conditioner is in the heating mode, when the condensed water of the outdoor unit flows to the heat exchanger 200, due to the low outdoor temperature, frost will form on the surface of the heat exchanger 200, and the first control switch 101 is turned on by control and the second control switch 301, the mixed solution can be sprayed to the heat exchanger 200 through the nozzle 20. Since the chemical potential of the mixed solution is lower than that of water, the frost on the surface of the heat exchanger 200 will contact the mixed solution. It can automate frosting, which can improve the heating efficiency of the air conditioner.

In a possible implementation, the controller controls the first control switch 101 on the water inlet pipe 10 and the second control switch 301 on the solvent pipe 30 to open, so that the added solvent in the solvent pipe 30 and the water inlet pipe 10 The spray water is mixed to form a mixed solution, and the mixed solution is sprayed to the heat exchanger 200 of the outdoor unit 100 through the nozzle 20. It also includes: the pressure sensor detects the suction pressure of the compressor. When the suction pressure is lower than the preset pressure When the threshold is reached, the controller controls to turn on the first control switch 101 and the second control switch 301 .

In the above implementation process, when the air conditioner is in the heating mode, the heat absorbed and evaporated in the heat exchanger 200 will produce condensed water, and the condensed water will condense and adhere to the heat exchanger 200, affecting the heat exchange effect. At this time, the pressure sensor detects When the suction pressure of the compressor is lower than the preset pressure threshold, it means that the heat exchanger 200 needs to defrost, then the pressure sensor sends a spray signal to the controller, and the controller opens the first control switch by controlling after receiving the spray signal 101 and the second control switch 301, so as to spray the mixed solution to the heat exchanger 200 to defrost, effectively improving the automation level of the heat exchanger 200 to defrost.

In a possible implementation manner, the method further includes: when the pressure sensor detects that the inspiratory pressure is not lower than a preset pressure threshold, the controller controls to turn off the first control switch 101 and the second control switch 301 .

In the above implementation process, when the pressure detector detects that the suction pressure of the compressor has returned to the preset pressure threshold after defrosting for a period of time, the pressure detector sends a signal to the controller to stop spraying, and the controller controls the shutdown at this time. The first control switch 101 and the second control switch 301 stop feeding the mixed solution into the water inlet pipe 10, that is, stop defrosting.

In a possible implementation manner, the method further includes: when the operating condition is cooling, the controller controls to turn off the second control switch 301 and turn on the first control switch 101 .

In the above implementation process, when the air conditioner is in the cooling mode, the surface temperature of the heat exchanger 200 is relatively high at this time, and defrosting is not required, the controller controls to close the second control switch 301 and open the first control switch 101 at this time, so Stop feeding the added solvent into the water inlet pipe 10, and feed the spray water into the water inlet pipe 10. At this time, the nozzle 20 only sprays the spray water to the heat exchanger 200, and the spray water absorbs heat and evaporates on the surface of the heat exchanger 200. , so as to realize the cooling of the heat exchanger 200, so as to effectively improve the cooling efficiency of the air conditioner.

In a possible implementation manner, the compressor exhaust pipe of the outdoor unit is provided with a first temperature sensor, and the outdoor unit is provided with a second temperature sensor, and the first temperature sensor and the second temperature sensor are electrically connected to the controller. Before the controller turns off the second control switch and turns on the first control switch, it also includes: the first temperature sensor detects the exhaust temperature of the compressor of the air conditioner, and the second temperature sensor detects the ambient temperature of the outdoor unit; When a temperature sensor detects that the exhaust gas temperature is greater than the first preset temperature threshold, and the second temperature sensor detects that the ambient temperature reaches the second preset temperature threshold, the second control switch is controlled to be closed and the first control switch is opened.

In the above implementation process, when the air conditioner is in cooling mode, and when the first temperature sensor detects that the discharge temperature of the compressor is greater than the first preset temperature threshold, the second temperature sensor detects that the ambient temperature reaches the second preset In the case of the temperature threshold, it indicates that the heat exchanger 200 needs to be sprayed to cool down. At this time, the controller controls to close the second control switch 301 to prevent the addition of solvent from entering the water inlet pipe, and turns on the first control switch 101 to make the water inlet pipe 10 pass through. Spray water is injected, so that the heat exchanger can be sprayed and cooled through the nozzle 20.

In a possible implementation manner, a heating device 50 is provided on the water inlet pipe 10 close to the nozzle side, and a third temperature sensor is provided in the heating device, and the controller controls the opening of the first control switch 101 and the second control switch 301 to The added solvent in the solvent pipe 30 is mixed with the spray water in the water inlet pipe 10 to form a mixed solution, and the mixed solution is sprayed to the heat exchanger 200 of the outdoor unit 100 through the nozzle 20, and the third temperature sensor detects the progress The temperature of the mixed solution in the water pipe 10; if the temperature of the mixed solution is lower than the preset temperature threshold, the heating device 50 is activated.

In the above implementation process, when it is necessary to defrost the heat exchanger 200, since the end of the water inlet pipe 10 near the nozzle 20 will store a mixed solution after each defrosting, the third temperature sensor can be used to detect this before defrosting. When it is detected that the temperature of the mixed solution in the water inlet pipe 10 is lower than the preset temperature threshold, the heating device 50 heats the mixed solution in the water inlet pipe 10, thereby increasing the temperature of the mixed solution. Excellent defrosting effect, thereby ensuring the reliable defrosting of the heat exchanger 200 by the spray system.

The above descriptions are only examples of the present application, and are not intended to limit the scope of protection of the present application. For those skilled in the art, various modifications and changes may be made to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application. It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Claims (15)

1. A spray system, comprising:

a water inlet pipe;

the solvent pipe is communicated with the water inlet pipe and is used for providing an added solvent, the added solvent is mixed with the spray water in the water inlet pipe to form a mixed solution, and the chemical potential of the mixed solution is lower than that of water;

and the nozzle is connected with the water outlet of the water inlet pipe and is used for spraying spray water or the mixed solution to a heat exchanger of an air conditioner outdoor unit.

2. The spray system of claim 1, wherein a first control switch is provided on the water inlet pipe and a second control switch is provided on the solvent pipe;

the spraying system further comprises a controller, and the controller is electrically connected with the first control switch and the second control switch and is used for controlling the first control switch and/or the second control switch to be turned on or turned off.

3. The spray system of claim 2, further comprising: the controller is used for controlling the first control switch and the second control switch to be turned on under the condition that the suction pressure of the compressor is lower than a preset pressure threshold value and the air conditioner is in a heating working condition, wherein the suction pressure of the compressor is detected by the pressure sensor.

4. The spraying system of claim 2, further comprising a control box disposed on the outdoor unit, wherein the controller, the first control switch, and the second control switch are disposed in the control box.

5. The spray system of any one of claims 1-4, further comprising: the heating device, at least part of inlet tube is located the inside of heating device.

6. The spray system of claim 5 wherein said heating means is disposed proximate said nozzle side.

7. The sprinkler system according to claim 5, wherein the inlet end of the inlet tube is not lower in height than the outlet end of the inlet tube within the heating device.

8. The spray system of any one of claims 1 to 4, wherein a solvent box is connected to one end of the solvent pipe, an additive solvent is stored in the solvent box, and the other end of the solvent pipe is communicated with the water inlet pipe.

9. An air conditioner, comprising:

the outdoor unit is provided with a heat exchanger; and

the spray system of any one of claims 1 to 8 for spraying spray water or mixed solution to the heat exchanger.

10. A control method of a spraying system of an air conditioner is disclosed, wherein the spraying system comprises a water inlet pipe, a solvent pipe, a nozzle, a controller and a pressure sensor, the water inlet pipe is connected with the nozzle, a jet orifice of the nozzle faces to a heat exchanger, the solvent pipe is communicated with the water inlet pipe and used for providing an additive solvent, the chemical potential of a mixed solution formed by mixing the additive solvent and spray water is lower than that of water, a first control switch and a second control switch are respectively arranged on the water inlet pipe and the solvent pipe, the controller is respectively electrically connected with the first control switch, the second control switch and the pressure sensor, and the pressure sensor is used for detecting the suction pressure of a compressor of an outdoor unit of the air conditioner, and the method is characterized by comprising the following steps:

acquiring the operation working conditions of the air conditioner, wherein the operation working conditions comprise refrigeration and heating;

when the operation working condition is heating, the controller controls the first control switch on the water inlet pipe and the second control switch on the solvent pipe to be turned on, so that the additive solvent in the solvent pipe is mixed with the spray water in the water inlet pipe to form a mixed solution, and the mixed solution is suitable for being sprayed to a heat exchanger of the outdoor unit through the nozzle.

11. The method of claim 10, wherein before the controller controls the first control switch and the second control switch to be opened, so that the additive solvent in the solvent pipe is mixed with the spray water in the water inlet pipe to form a mixed solution, and the mixed solution is sprayed to the heat exchanger of the outdoor unit through the spray nozzles, the method further comprises:

the pressure sensor detects the suction pressure of the compressor, and when the suction pressure is lower than a preset pressure threshold value, the controller controls to turn on the first control switch and the second control switch.

12. The method of claim 11, further comprising:

when the pressure sensor detects that the suction pressure is not lower than the preset pressure threshold, the controller controls to close the first control switch and the second control switch.

13. The method according to any one of claims 10-12, further comprising:

and when the operation working condition is refrigeration, the controller controls to close the second control switch and open the first control switch.

14. The method of claim 13, wherein a first temperature sensor is disposed on a discharge pipe of a compressor of the outdoor unit, a second temperature sensor is disposed on the outdoor unit, and the first temperature sensor and the second temperature sensor are electrically connected to the controller, further comprising, before the controller controls the second control switch to be turned off and the first control switch to be turned on:

the first temperature sensor detects the discharge temperature of a compressor of the air conditioner, and the second temperature sensor detects the ambient temperature of the outdoor unit;

the controller controls the second control switch to be closed and the first control switch to be opened under the condition that the first temperature sensor detects that the exhaust temperature is greater than a first preset temperature threshold value and the second temperature sensor detects that the ambient temperature reaches a second preset temperature threshold value.

15. The method as claimed in any one of claims 10 to 12, wherein a heating device is disposed on the side of the inlet pipe close to the nozzle, and a third temperature sensor is disposed in the heating device, wherein before the controller controls the first control switch and the second control switch to be turned on, so that the additive solvent in the solvent pipe is mixed with the shower water in the inlet pipe to form a mixed solution, and the mixed solution is sprayed to the heat exchanger of the outdoor unit through the nozzle, the method further comprises:

the third temperature sensor detects the temperature of the mixed solution in the water inlet pipe;

and if the temperature of the mixed solution is lower than a preset temperature threshold value, starting the heating device.

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