Smoke removing device of air conditioner and air conditioner

Abstract

The application provides a smoke removing device of an air conditioner, comprising: an oil-gas separation assembly, comprising an oil filter screen capable of separating oil mist in air; a spraying assembly, comprising an atomizer, a spray pipe and a hydrophobic membrane capable of separating liquid drops in air, the atomizer being capable of atomizing liquid medicine and releasing medicine mist through the spray pipe; a casing, having an air inlet and an air outlet, the oil filter screen, the spray pipe and the hydrophobic membrane being sequentially arranged between the air inlet and the air outlet in the casing; and the air outlet being capable of being connected with an air inlet of an indoor unit of the air conditioner. The application realizes an air conditioner smoke removing scheme capable of efficiently and conveniently purifying environmental tobacco smoke residue and smell in air.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and particularly to a smoke removing device of an air conditioner and the air conditioner. BACKGROUND

[0002] With the development of science and technology and the improvement of people's health consciousness, the functional requirements for household appliances are increasing. For air conditioners, in addition to the basic functions such as refrigeration and heating, air conditioners also need to improve indoor air quality.

[0003] Second-hand smoke is a mixture of smoke released by the burning end of a cigarette or other tobacco product and exhaled by a smoker. It is also the most widespread and serious indoor air pollution. Studies have shown that second-hand smoke contains more than 4000 harmful chemicals and dozens of carcinogens, such as tar, ammonia, nicotine, suspended particulate matter, PM2.5, and polonium-210. Among them, the macromolecular organic matter in the smoke composition is easy to stay in the air and is not easy to volatilize, forming aerosol and seriously affecting the health of non-smoking people. The air purification system of the traditional air conditioner is difficult to effectively remove the environmental tobacco smoke residue and odor in the air. SUMMARY

[0004] The present application provides a smoke removing device of an air conditioner and the air conditioner, to solve the defects that the air conditioner in the prior art is difficult to purify the environmental tobacco smoke residue and odor in the air, and to realize an air conditioner smoke removing scheme that can efficiently and conveniently purify the environmental tobacco smoke residue and odor in the air.

[0005] The present application provides a smoke removing device of an air conditioner, comprising: an oil-gas separation assembly comprising an oil filter screen capable of separating oil mist in the air; a spraying assembly comprising an atomizer, a spray pipe, and a hydrophobic membrane capable of separating liquid droplets in the air, the atomizer being capable of atomizing liquid medicine and releasing medicine mist through the spray pipe; a cabinet having an air inlet and an air outlet, the oil filter screen, the spray pipe, and the hydrophobic membrane being sequentially distributed between the air inlet and the air outlet in the cabinet; and the air outlet being capable of being docked with the air inlet of the indoor unit of the air conditioner.

[0006] According to the smoke removing device of the air conditioner provided by the present application, the oil-gas separation assembly comprises an oil guide groove, which is installed between the oil filter screen and the spray pipe to recover the oil liquid dripping from the oil filter screen.

[0007] According to the smoke removing device of the air conditioner provided by the present application, the oil guide groove is inclined relative to the horizontal plane, and the lower side of the oil guide groove is communicated with an oil return box to guide the oil liquid in the oil guide groove into the oil return box.

[0008] According to the smoke removing device of the air conditioner provided by the present application, the first inclined plate and the second inclined plate are arranged at different height positions of the opposite inner surfaces in the shell, and the projection ranges of at least a part of the first inclined plate and the second inclined plate on the horizontal plane are coincident.

[0009] According to the smoke removing device of the air conditioner provided by the present application, the spray assembly comprises a liquid storage tank and a liquid pump, the liquid storage tank is used for storing the liquid medicine, and the liquid pump is communicated with the atomizer through a liquid supply pipe, so that the liquid medicine in the liquid storage tank can be supplied to the atomizer.

[0010] According to the smoke removing device of the air conditioner provided by the present application, the spray assembly comprises a grid plate, the grid plate is arranged below the spray pipe in an inclined manner relative to the horizontal plane, and the hydrophobic membrane is arranged on the grid plate; a reflux pipe is arranged between the lower side of the grid plate and the liquid storage tank, so that the liquid drops separated by the hydrophobic membrane flow along the reflux pipe into the liquid storage tank.

[0011] According to the smoke removing device of the air conditioner provided by the present application, the liquid medicine is an acidic liquid, and the liquid storage tank is provided with a pH detector to detect the pH change of the liquid medicine in the liquid storage tank.

[0012] According to the smoke removing device of the air conditioner provided by the present application, the filter assembly comprises a filter screen and / or an adsorptive filter material.

[0013] According to the smoke removing device of the air conditioner provided by the present application, at least one side of the oil filter screen is provided with an axial flow fan capable of sending air to the oil filter screen in the horizontal direction.

[0014] According to the smoke removing device of the air conditioner provided by the present application, the lifting mechanism is installed between the shell and the air conditioner; the lifting mechanism has an expanded state and a contracted state; in the expanded state, the lifting mechanism supports the air outlet of the shell away from the air inlet of the indoor unit; in the contracted state, the air outlet is in butt joint with the air inlet of the indoor unit.

[0015] According to the smoke removing device of the air conditioner provided by the present application, the lifting mechanism comprises a plurality of memory metal rods capable of being connected between the shell and the air conditioner, and the memory metal rods are in the expanded state at normal temperature and are converted to the contracted state after being heated.

[0016] The present application also provides an air conditioner, which comprises an indoor unit and an outdoor unit, and the indoor unit is provided with any one of the smoke removing devices of the air conditioner.

[0017] The application provides a smoke removing device of an air conditioner and the air conditioner. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0019] Figure 1 FIG. 1 is a structural schematic diagram of the smoke removing device of the air conditioner and the air conditioner provided by the application;

[0020] Figure 2 FIG. 2 is a sectional structural schematic diagram of the smoke removing device of the air conditioner provided by the application;

[0021] Figure 3 FIG. 3 is a flow schematic diagram of the smoke removing method of the air conditioner provided by the application;

[0022] Figure 4 FIG. 4 is another flow schematic diagram of the smoke removing method of the air conditioner provided by the application.

[0023] Reference signs:

[0024] 11: oil filter screen; 12: oil guide groove; 13: oil return box; 14: first inclined plate; 15: second inclined plate; 21: atomizer; 22: spray pipe; 23: hydrophobic membrane; 24: liquid storage tank; 25: liquid pump; 26: grid plate; 30: filter assembly; 40: machine shell; 41: air inlet; 42: air outlet; 50: lifting mechanism. DETAILED DESCRIPTION

[0025] In order to make the objects, technical solutions and advantages of the application clearer, the technical solutions in the application will be described clearly and completely in combination with the drawings in the application. Obviously, the described embodiments are some embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the application.

[0026] The air purification of the existing air conditioner mainly acts on floating dust in the air, and the treatment effect on environmental tobacco smoke generated by cigarette combustion is poor. Since the components of smoke are mostly macromolecular organic matters, they are more likely to stay in the air and are not easy to volatilize, forming aerosol, which seriously affects the indoor experience and health of non-smoking people.

[0027] The present application can intelligently judge the smoke condition in the indoor air environment based on the concentration change of the air generated by environmental tobacco smoke. The environmental tobacco smoke generated by smoking is efficiently treated to reduce the smoke concentration, avoid the retention of harmful substances generated by smoking, improve the indoor environment, improve the indoor experience comfort of users, and maintain the health of users.

[0028] The air conditioner smoke removal device of the preferred embodiment of the present application will be described below. Figures 1-2 The air conditioner smoke removal device of the preferred embodiment of the present application will be described below.

[0029] As shown in Figure 1 , the shell 40 of the air conditioner smoke removal device of the present application is preferably installed on the indoor unit of the air conditioner through the lifting mechanism 50, so that the air outlet 42 of the shell 40 can be controlled by the lifting mechanism 50 to be in butt joint or away from each other with the air inlet of the indoor unit. Thus, without modifying the air conditioner, but on the basis of the existing air conditioner indoor unit, the indoor smoke removal work can be carried out by the cooperation of the smoke removal device and the indoor unit of the air conditioner.

[0030] As shown in Figure 1 and Figure 2 , the smoke removal device includes a shell 40, an oil-gas separation assembly, a spraying assembly and a filter assembly 30. The oil-gas separation assembly includes a filter screen 11, a first inclined plate 14, a second inclined plate 15, an oil guide groove 12 and an oil return box 13. The spraying assembly includes an atomizer 21, a spray pipe 22, a hydrophobic membrane 23, a liquid storage tank 24, a liquid pump 25 and a grid plate 26. The filter assembly 30 includes a filter screen and / or an adsorptive filter material.

[0031] In the state that the shell 40 of the smoke removal device cooperates with the indoor unit of the air conditioner, the fan of the indoor unit is started to generate air pressure, causing the air to pass through the above-mentioned oil-gas separation assembly, spraying assembly and filter assembly 30 along the movement path as shown in Figure 2 .

[0032] When the indoor space has environmental tobacco smoke, the oil filter screen 11 can separate oily substances such as tar in the air. When a part of the oily substances accumulates on the oil filter screen 11, the oily substances can gather into oil droplets, flow into the oil guide groove 12 along the first inclined plate 14 and the second inclined plate 15, and then enter the oil return box 13 through the oil guide groove 12. The liquid pump 25 can pump the liquid medicine in the liquid storage tank 24 to the atomizer 21, the atomizer 21 atomizes the liquid medicine, and then makes the spray pipe 22 spray the medicine mist to clean the air. On the one hand, the moisture of the medicine mist can adsorb impurities in the air, and on the other hand, the liquid medicine is preferably acidic, and through the medicine mist, harmful substances such as nicotine in the air can be neutralized, and the smoke smell can be effectively removed. During the process of the cleaned air passing through the hydrophobic membrane 23, the moisture in the air is intercepted above the hydrophobic membrane 23 and flows back into the liquid storage tank 24 along the hydrophobic membrane 23 to repeat the liquid circulation. Finally, the air filtered of the moisture passes through the mesh holes of the mesh disc 26, enters the filter assembly 30, and the filter screen and / or adsorbent filter material of the filter assembly 30 further filter impurities in the air, so that relatively clean air enters the indoor unit of the air conditioner, and the air circulation of the air conditioner and the smoke removal effect of the smoke removal device are utilized, so that the environmental tobacco smoke residual substances and smell in the air can be efficiently and conveniently purified.

[0033] In order to better understand the above technical solutions, the air conditioner smoke removal device and the air conditioner of the present application will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0034] The present application provides an air conditioner smoke removal device, comprising: an oil-gas separation assembly comprising an oil filter screen 11 capable of separating oil mist in the air; a spray assembly comprising an atomizer 21, a spray pipe 22, and a hydrophobic membrane 23 capable of separating liquid droplets in the air, the atomizer 21 being capable of atomizing liquid medicine and releasing medicine mist through the spray pipe 22; a housing 40 having an air inlet 41 and an air outlet 42, the oil filter screen 11, the spray pipe 22, and the hydrophobic membrane 23 being sequentially distributed between the air inlet 41 and the air outlet 42 in the housing 40; and the air outlet 42 being capable of being docked with the air inlet of the indoor unit of the air conditioner.

[0035] The smoke removal device is docked with the air inlet of the indoor unit of the air conditioner through the air outlet 42 of the housing 40, so that during the operation of the air conditioner, the air first passes through the housing 40 and then enters the indoor unit. The smoke removal device can filter out the oil mist of tar produced by the combustion of tobacco in the air by using the oil filter screen 11, and clean the air by using the medicine mist released by the atomizer 21 and the spray pipe 22 to remove and neutralize the residual smoke smell and harmful substances in the air, and intercept the moisture mixed into the air by the hydrophobic membrane 23. The combination of the smoke removal device and the indoor unit of the air conditioner is simple, and the air conditioner installed with the above smoke removal device can efficiently and conveniently purify the environmental tobacco smoke residual substances and smell in the air.

[0036] As shown in Figure 1 and Figure 2 , a plurality of nozzles are uniformly distributed on the nozzle 22 along the length direction of the nozzle 22, and the plurality of nozzles are preferably arranged in the horizontal radial direction of the nozzle 22, so that a wall of the pesticide mist can be formed on the air movement path during the spraying process, and the action efficiency of the pesticide mist on the moving air can be improved.

[0037] According to the smoke removing device of the air conditioner provided by the present application, as shown in Figure 1 and Figure 2 , the oil-gas separation assembly preferably comprises an oil guide groove 12 installed between the oil filter screen 11 and the nozzle 22, so that the oil liquid dripping from the oil filter screen 11 can be recovered. The oily substances in the smoke have high adsorption, and the tar substances in the air can be adsorbed by the oil filter screen 11 during the air passing through the oil filter screen. When the oily substances accumulate too much, the oil liquid can be collected by the oil guide groove 12.

[0038] The collected oil liquid can be stored in the oil guide groove 12 for regular cleaning, or according to the smoke removing device of the air conditioner provided by the present application, the oil guide groove 12 is preferably arranged to be inclined relative to the horizontal plane, so that the oil liquid flows to the lower side. The angle of the oil guide groove 12 relative to the horizontal plane can be 1-10 degrees, and preferably 3-5 degrees. The horizontal plane in the present application is a plane perpendicular to the gravity. The lower side of the oil guide groove 12 is preferably connected with an oil return box 13, so that the oil liquid in the oil guide groove 12 can be guided into the oil return box 13. As shown in Figure 1 , the oil return box 13 is located on one side of the casing 40, and the oil return box 13 is preferably matched with the casing 40 through a quick plug structure, so that the smoke removing device can be easily disassembled, replaced and maintained.

[0039] According to the smoke removing device of the air conditioner provided by the present application, the oil filter screen 11 and the oil guide groove 12 are preferably provided with a first inclined plate 14 and a second inclined plate 15. As shown in Figure 2 , the first inclined plate 14 and the second inclined plate 15 are arranged at different height positions on the opposite inner surfaces of the casing 40, so that a space allowing air to pass through is reserved between the first inclined plate 14 and the second inclined plate 15. At least a part of the first inclined plate 14 and the second inclined plate 15 overlaps in the projection range on the horizontal plane, so that the oil droplets dripping from the oil filter screen 11 can be all received by the first inclined plate 14 and the second inclined plate 15, and finally flow into the oil guide groove 12 along the inclined surfaces of the first inclined plate 14 and the second inclined plate 15.

[0040] The pesticide liquid of the spraying assembly of the smoke removing device can be stored in the atomizer 21, or according to the smoke removing device of the air conditioner provided by the present application, the spraying assembly preferably comprises a liquid storage tank 24 and a liquid pump 25. As shown in Figure 1As shown, the liquid tank 24 is used to store the liquid medicine, and a liquid supply pipe is connected between the liquid pump 25 and the atomizer 21, so that the liquid medicine in the liquid tank 24 can be supplied to the atomizer 21. The liquid pump 25 is preferably a variable frequency pump, so as to provide different output powers, thereby enabling the spray assembly to change the circulation speed of the liquid medicine according to different smoke concentration working environments, and saving energy consumption.

[0041] In the above smoke removal device, after the air passes through the hydrophobic membrane 23, the moisture is left on the surface of the hydrophobic membrane 23, and when the moisture accumulates too much, it will affect the air permeability of the hydrophobic membrane 23. According to the smoke removal device of the air conditioner provided by the present application, as shown in Figure 2 As shown, the spray assembly preferably comprises a grid plate 26, which is arranged below the spray pipe 22 and is inclined relative to the horizontal plane, and the hydrophobic membrane 23 is covered on the grid plate 26. The grid plate 26 can support the hydrophobic membrane 23 and enable the accumulated moisture on the hydrophobic membrane 23 to flow along the inclined surface. The angle of the grid plate 26 relative to the horizontal plane can be 1-10 degrees, preferably 3-5 degrees.

[0042] The lower side of the grid plate 26 is provided with a return pipe between the liquid tank 24, so that the liquid droplets separated by the hydrophobic membrane 23 flow along the return pipe into the liquid tank 24, forming a circulation system that can reuse the liquid medicine. In the running state of the spray assembly, the liquid medicine stored in the liquid tank 24 is guided by the liquid pump 25 to the atomizer 21, the atomizer 21 converts the liquid medicine into a mist, and then the mist is sprayed out through the spray pipe 22 to adsorb or neutralize impurities in the air. The cleaned mist is intercepted on the hydrophobic membrane 23 and accumulates into liquid medicine back to the liquid tank 24. The liquid medicine in the liquid tank 24 can be used for a period of time before it deteriorates, without the need for frequent addition, thereby reducing maintenance costs.

[0043] The liquid medicine can be only liquid water, which uses water mist to adsorb impurities in the air, or the liquid medicine can also be a chemical solution that can react with and neutralize harmful substances in the smoke.

[0044] According to the smoke removal device of the air conditioner provided by the present application, the liquid medicine is preferably an acidic liquid, so as to react with nicotine in the smoke to remove the smell. The liquid tank 24 is preferably provided with a pH detector to detect the pH change of the liquid medicine in the liquid tank 24. As shown in Figure 1 As shown, the liquid tank 24 is preferably provided with a display window capable of displaying the pH change of the liquid medicine, so as to intuitively display the detection result of the pH detector to the user, thereby facilitating the user to judge whether the liquid medicine needs to be replaced.

[0045] According to the present application, the oil filter device of the air conditioner comprises a filter assembly 30 for further filtering the air after the oil filtering and cleaning. The filter assembly can comprise a filter screen and / or an adsorptive filter material for adsorbing and filtering the harmful substances remaining in the air. The filter screen can be made of non-woven fabric, melt-blown fabric, etc. and the adsorptive filter material can be activated carbon, zeolite, etc. Preferably, the filter assembly is a composite filter material comprising activated carbon non-woven fabric, activated carbon filter cotton and activated carbon fiber, etc.

[0046] According to the present application, the oil filter device of the air conditioner, at least one side of the oil filter screen 11 is preferably provided with an axial flow fan 16 capable of sending air to the oil filter screen 11 in the horizontal direction. As shown in Figure 2 The air inlet 41 of the casing 40 can be formed at the top and side of the casing 40 respectively to increase the air inflow.

[0047] The axial flow fan 16 can be arranged at the air inlet 41 of the side of the casing 40. During the operation of the device, in addition to the air movement in the oil filter device by the negative pressure of the indoor unit, the axial flow fan 16 can further increase the amount of air entering the oil filter screen 11, thereby improving the smoke removal efficiency.

[0048] According to the present application, the oil filter device of the air conditioner preferably comprises a lifting mechanism 50 installed between the casing 40 and the air conditioner, so that the installation state and non-installation state of the oil filter device and the indoor unit of the air conditioner can be conveniently switched by using the lifting mechanism 50.

[0049] The lifting mechanism 50 has an expanded state and a contracted state. As shown in Figure 2 In the expanded state, the lifting mechanism 50 supports the air outlet 42 of the casing 40 away from the air inlet of the indoor unit, and the air conditioner can be normally used. In the contracted state, the air outlet 42 is in butt joint with the air inlet of the indoor unit to provide the smoke removal function based on the air circulation of the indoor unit during the operation of the air conditioner.

[0050] The lifting mechanism 50 can be a support with manually adjustable lifting height, or a support mechanism with automatically controlled height by a driver, such as a lead screw mechanism, an electric push rod, a gear and rack mechanism, etc.

[0051] According to the present application, the oil filter device of the air conditioner, the lifting mechanism 50 comprises a plurality of memory metal rods capable of being connected between the casing 40 and the air conditioner. The memory metal rods are in the expanded state at normal temperature and are converted to the contracted state after being heated. When smoke removal is needed, the memory metal rods are heated or powered to generate heat by themselves, so that the lifting mechanism 50 is converted to the contracted state, and the oil filter device is matched with the indoor unit. When smoke removal is not needed, the memory metal rods are in the expanded state at normal temperature, supporting the oil filter device away from the indoor unit, and the air conditioner works normally.

[0052] Based on the smoke removing device of the air conditioner of the present application, the present application further provides an air conditioner, which comprises an indoor unit and an outdoor unit, and the indoor unit is provided with any one of the smoke removing devices of the air conditioner as described above. The air conditioner can be retrofitted by adding the smoke removing device of the present application to the existing air conditioner, so that the air conditioner can realize the smoke removing function. The combination of the smoke removing device and the indoor unit of the air conditioner is simple, and the air conditioner provided with the smoke removing device described above can realize efficient and convenient purification of the environmental tobacco smoke residues and odor in the air without modifying the internal structure.

[0053] Based on the smoke removing device of the air conditioner and the air conditioner, the present application further provides a smoke removing method of the air conditioner. The smoke removing method of the air conditioner provided by the present application is described below, and the smoke removing method of the air conditioner described below can be correspondingly referred to the smoke removing device of the air conditioner and the air conditioner described above.

[0054] According to the smoke removing method of the air conditioner provided by the present application, the indoor unit of the air conditioner is provided with any one of the smoke removing devices as described above, and the smoke removing device has a filtering mode and a cleaning mode. In the filtering mode, the spraying assembly is not working, and the smoke removing device covers the air inlet of the indoor unit, so that the air enters the indoor unit after being filtered by the smoke removing device. In the cleaning mode, the smoke removing device filters the air while starting the spraying assembly to convert the liquid medicine into the medicine mist, so as to clean the air passing through the smoke removing device.

[0055] As shown in Figure 1 The smoke removing method comprises the following steps: starting the air conditioner and setting a target air concentration; detecting the air concentration of the air inlet and the air concentration of the air outlet of the indoor unit of the air conditioner; and judging the air concentration of the air inlet and the air concentration of the air outlet according to the target air concentration, so as to control the smoke removing device to start the filtering mode or the cleaning mode. According to the smoke removing method, the air quality sensor can be arranged at the air inlet of the indoor unit (the air inlet 41 of the smoke removing device when the smoke removing device is matched), so as to monitor the indoor air quality under the operation of the air conditioner.

[0056] The air concentration of the air inlet is the concentration of the current indoor air. When the air concentration of the air inlet is higher than the target air concentration, it can be known that the current indoor air quality is poor, and the smoke removing device can be started to remove the smoke from the indoor air in cooperation with the indoor unit of the air conditioner.

[0057] In the case of starting the filtering mode, the air inlet of the indoor unit is connected with the air outlet 42 of the smoke removing device, so that the indoor air first passes through the filtering of the smoke removing device and then enters the air supply of the indoor unit. Thus, the indoor air can be continuously filtered by the operation of the air conditioner under the filtering effect of the smoke removing device, so as to reduce the harmful substances in the air, such as environmental tobacco smoke generated by smoking. In the cleaning mode, the spray assembly of the smoke removing device is started to clean the passing air by the drug mist to adsorb and / or neutralize the harmful substances in the air while filtering the air.

[0058] In the case of not starting the smoke removing device, the difference between the air inlet concentration and the air outlet concentration of the indoor unit is only related to the air filtering performance of the indoor unit itself. Whether the smoke removing device is started can also be controlled by comparing the air outlet concentration with the target air concentration. According to the smoke removing method of the air conditioner provided by the present application, when either the air inlet concentration or the air outlet concentration is greater than the target air concentration, the filtering mode of the smoke removing device is started.

[0059] In addition, the highest air concentration higher than the target air concentration can also be preset. When either the air inlet concentration or the air outlet concentration exceeds the highest air concentration, the cleaning mode of the smoke removing device can be controlled to be quickly started to efficiently treat the indoor air problem.

[0060] According to the smoke removing method of the air conditioner provided by the present application, in the filtering mode, the air inlet flow rate of the smoke removing device is adjusted according to the air inlet concentration and the air outlet concentration. During the filtering process, the smoke removing device inevitably affects the air inlet amount of the indoor unit. At this time, the air inlet amount of the smoke removing device can be increased by the axial flow fan 16 as recorded in the foregoing, so as to reduce the influence on the air inlet amount of the indoor unit, and further to realize the adjustment of the smoke removing efficiency.

[0061] Preferably, in the initial stage of the filtering mode, the air inlet flow rate of the smoke removing device is in a low flow rate state. When the difference between the air inlet concentration and the air outlet concentration is greater than or equal to half of the air inlet concentration, it can be judged that the current smoke removing efficiency is low. At this time, the axial flow fan 16 is started to adjust the air inlet flow rate of the smoke removing device to a high flow rate state, so as to increase the filtering amount of the indoor space per unit time and improve the smoke removing efficiency.

[0062] According to the method for removing smoke provided by the application, in the filtering mode, whether to start the cleaning mode of the smoke removing device is selected according to the inlet air concentration and the outlet air concentration. By detecting the inlet air concentration and the outlet air concentration during the filtering mode is effective, whether the efficiency of the current filtering mode for removing smoke from indoor air meets the demand can be determined. For example, after the filtering mode is started for a period of time, the decrease of the inlet air concentration is not ideal, or in the filtering mode, the difference between the inlet air concentration and the outlet air concentration is small. For example, when the difference between the inlet air concentration and the outlet air concentration is less than half of the inlet air concentration, the smoke removing device starts the cleaning mode.

[0063] Preferably, as shown in Figure 1 After the smoke removing device starts the filtering mode and stably operates for a first duration, the smoke removing device is allowed to start the cleaning mode. The first duration can be 1-10 minutes, preferably 5 minutes. This prevents energy and liquid waste due to inaccurate air concentration caused by uneven indoor air concentration.

[0064] According to the method for removing smoke provided by the application, the liquid medicine is recycled in the smoke removing device, and the smoke removing device comprises a liquid storage tank 24 connected with a liquid supply pipe for providing liquid medicine and a backflow pipe for recycling liquid medicine. The method for removing smoke comprises: in the cleaning mode, detecting the liquid supply concentration in the liquid supply pipe and the liquid return concentration in the backflow pipe; and according to the liquid supply concentration and the liquid return concentration, controlling the liquid supply speed of the liquid supply pipe.

[0065] The acidic liquid medicine reacts with alkaline harmful substances such as nicotine in the air, which consumes the acidic chemicals in the solution. By arranging liquid concentration sensors in the liquid supply pipe and the backflow pipe respectively, the concentration change of the acidic chemicals in the liquid medicine can be monitored in real time, so that the neutralization efficiency of the liquid medicine in the recycling process with the air can be determined.

[0066] Preferably, the difference between the liquid supply concentration and the liquid return concentration is less than or equal to one fifth of the liquid supply concentration, and if the neutralization efficiency is not up to standard, the liquid supply speed of the liquid medicine is gradually increased to increase the generation amount of the liquid mist, so as to improve the contact efficiency of the liquid mist with the air, and further improve the neutralization efficiency. The liquid pump 25 can be provided with multiple variable frequency gears, and in the initial start, it is operated at a low gear, that is, the liquid medicine is provided at the lowest liquid supply speed. If the neutralization efficiency is not up to standard, the variable frequency gear of the liquid pump 25 is gradually increased to gradually increase the liquid supply speed of the liquid medicine, until the neutralization efficiency meets the requirement.

[0067] As shown in Figure 1 Figure 4 Figure 4As shown, the method for removing smoke provided by the air conditioner according to the present application comprises: in the cleaning mode, if the concentration of the outflow air is less than or equal to the target air concentration, the smoke removal device is controlled to exit the cleaning mode and maintain the filtering mode; in the filtering mode, if the concentration of the inflow air is less than or equal to the target air concentration and the duration exceeds the second time length, the smoke removal device is controlled to exit the filtering mode. According to the method for removing smoke of the air conditioner, when the smoke removal task is about to be completed, the concentration of harmful substances in the air is reduced, at which time the consumption of the smoke removal device can be gradually reduced, the efficiency of smoke removal is flexibly adjusted, and the utilization efficiency of energy and liquid medicine is optimized.

[0068] The method for removing smoke of the air conditioner according to the present application, the liquid medicine is provided with a rated pH range, the method comprises: detecting the PH value of the liquid medicine in the liquid storage tank 24 before starting the air conditioner and in the cleaning mode; if the PH value exceeds the rated pH range, the user is reminded to replace the liquid medicine. According to the smoke removal device provided by the present application, the change of the pH of the liquid medicine in the liquid storage tank 24 can be detected by the pH detector described above, and the user is reminded to replace the liquid medicine in time through the display window or other sound and light reminding mode, so as to guarantee the smoke removal performance of the smoke removal device.

[0069] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A smoke removing device of an air conditioner, characterized by, The device comprises: an oil-gas separation assembly comprising an oil filter screen (11) capable of separating oil mist in air; a spraying assembly comprising an atomizer (21) capable of atomizing liquid medicine and releasing the atomized liquid medicine through a spray pipe (22), and a hydrophobic membrane (23) capable of separating liquid droplets in air; a casing (40) having an air inlet (41) and an air outlet (42), wherein the oil filter screen (11), the spray pipe (22) and the hydrophobic membrane (23) are sequentially arranged between the air inlet (41) and the air outlet (42) in the casing (40); the air outlet (42) is capable of being connected to an air inlet of an indoor unit of an air conditioner; the spraying assembly comprises a liquid storage tank (24) and a liquid pump (25), wherein the liquid storage tank (24) is used for storing the liquid medicine, and a liquid supply pipe is connected between the liquid pump (25) and the atomizer (21) to supply the liquid medicine in the liquid storage tank (24) to the atomizer (21); the spraying assembly comprises a grid plate (26) which is arranged below the spray pipe (22) and is inclined relative to a horizontal plane, and the hydrophobic membrane (23) is arranged on the grid plate (26); a reflux pipe is arranged between a lower side of the grid plate (26) and the liquid storage tank (24) to enable the liquid droplets separated by the hydrophobic membrane (23) to flow into the liquid storage tank (24) through the reflux pipe; the liquid medicine is acidic liquid, and the liquid storage tank (24) is provided with a pH detector to detect the pH change of the liquid medicine in the liquid storage tank (24); the smoke removing device has a filtering mode and a cleaning mode; in the filtering mode, the spraying assembly is not operated, and the smoke removing device covers the air inlet of the indoor unit to enable the air to enter the indoor unit after being filtered by the smoke removing device; in the cleaning mode, the spraying assembly is started to convert the liquid medicine into liquid medicine mist to clean the air passing through the smoke removing device while filtering the air; the smoke removing device is configured to set a target air concentration when the air conditioner is started, detect the air concentration of the air inlet and the air outlet of the indoor unit of the air conditioner, start the filtering mode of the smoke removing device when any one of the air concentration of the air inlet and the air concentration of the air outlet is greater than the target air concentration, select whether to start the cleaning mode of the smoke removing device according to the air concentration of the air inlet and the air concentration of the air outlet in the filtering mode, and start the cleaning mode of the smoke removing device when the difference between the air concentration of the air inlet and the air concentration of the air outlet is less than half of the air concentration of the air inlet; wherein the air concentration refers to the concentration of tobacco smoke in the air.

2. The smoke removing device of the air conditioner according to claim 1, wherein the oil-gas separation assembly comprises an oil guide groove (12) which is installed between the oil filter screen (11) and the spray pipe (22) to recover the oil droplets falling from the oil filter screen (11).

3. The smoke removing device of the air conditioner according to claim 2, wherein the oil guide groove (12) is arranged to be inclined relative to a horizontal plane, and a lower side of the oil guide groove (12) is connected to a return oil box (13) to guide the oil in the oil guide groove (12) into the return oil box (13).

4. The smoke removing device of the air conditioner according to claim 2, wherein A first inclined plate (14) and a second inclined plate (15) are arranged between the oil filter screen (11) and the oil guide groove (12); The first inclined plate (14) and the second inclined plate (15) are arranged at different height positions on opposite inner surfaces in the casing (40) respectively; At least a part of the first inclined plate (14) and the second inclined plate (15) has a projection range on a horizontal plane which coincides.

5. The smoke removing device of the air conditioner according to claim 1, wherein The filter assembly (30) comprises a filter screen and / or an adsorptive filter material.

6. The smoke removing device of the air conditioner according to claim 1, wherein At least one side of the oil filter screen (11) is provided with an axial flow fan (16) capable of sending air to the oil filter screen (11) in a horizontal direction.

7. The smoke removing device of an air conditioner according to any one of claims 1 to 6, wherein The lifting mechanism (50) is installed between the casing (40) and the air conditioner; The lifting mechanism (50) has an expanded state and a contracted state; In the expanded state, the lifting mechanism (50) supports the air outlet (42) of the casing (40) to be away from the air inlet of the indoor unit; in the contracted state, the air outlet (42) is in butt joint with the air inlet of the indoor unit.

8. The smoke removing device of the air conditioner according to claim 7, wherein The lifting mechanism (50) comprises a plurality of memory metal rods capable of being connected between the casing (40) and the air conditioner, and the memory metal rods are in the expanded state at normal temperature and are converted to the contracted state after being heated.

9. An air conditioner characterized by comprising: The air conditioner comprises an indoor unit and an outdoor unit, and the indoor unit is provided with the smoke removing device of the air conditioner according to any one of claims 1-8.

Images