Oil fume and hot water integrated system

Abstract

The utility model provides a cooking fume and hot water integrated system which comprises a water heater and a range hood, and an exhaust pipeline of the water heater is communicated with a fan system of the range hood; the range hood comprises a cooling pipeline, one end of the cooling pipeline is connected with a water inlet pipeline of the water heater, and the other end of the cooling pipeline is connected with a water outlet pipeline of the water heater; an auxiliary heat exchange pipeline is further arranged on an air outlet of the fan system of the range hood, and a heat exchange device is arranged on the auxiliary heat exchange pipeline and used for conducting heat exchange on hot air exhausted by the range hood. According to the oil fume and hot water integrated system, the range hood and the water heater share the fan system and the pipeline system, so that integration of oil fume discharge and hot water supply is realized, the space cost is saved, the source utilization efficiency is also improved, and a water source of the water heater is utilized to clean the range hood and cool the fan in work.

Description

Technical Field

[0001] The utility model relates to kitchen equipment, in particular to an integrated system of range hoods and water heaters. Background Art

[0002] Integrated kitchen appliances are modern new kitchen appliances that integrate at least two kitchen appliances, such as range hoods, stoves, disinfection cabinets, storage cabinets, and cupboards. Integrated kitchen appliances can increase the usable space in the kitchen and improve the aesthetics of the kitchen due to their compact overall structure and small size.

[0003] In the existing range hoods, after the range hood absorbs the oil smoke, the oil smoke first enters the fan system in the cabinet, and then is discharged into the exhaust pipe by the fan system. Due to the incomplete separation of the oil smoke, the long-term use of the integrated stove will cause oil droplets to accumulate in the fan system, causing secondary pollution to the kitchen air. The long-term accumulated oil stains are seriously attached, and it is very difficult to clean, which affects the user experience. At the same time, the cooling of the fan system of the range hood is also well solved. These problems are particularly prominent in integrated kitchen appliances. For example, integrated kitchen appliances that integrate range hoods and water heaters, if the water heater also uses the fan system of the range hood to exhaust smoke, when the fan system of the range hood is seriously attached with oil stains, it will further affect the discharge of the exhaust gas of the water heater, which is not conducive to the purification of the kitchen air. At the same time, the existing integrated kitchen equipment does not make good use of secondary energy, resulting in a certain amount of energy waste. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an integrated system of range hood and water heater.

[0005] The utility model solves the above technical problems through the following technical solutions: an integrated system of oil fume and hot water, including a water heater and an oil fume hood, characterized in that:

[0006] The water heater comprises a ventilation duct and an exhaust duct, and the exhaust duct of the water heater is connected to the fan system of the range hood;

[0007] The water heater further comprises a water inlet pipeline and a water outlet pipeline, and a heating pipeline arranged between the water inlet pipeline and the water outlet pipeline;

[0008] The range hood comprises a cooling pipeline, one end of which is connected to the water inlet pipeline of the water heater, and the other end of which is connected to the water outlet pipeline of the water heater;

[0009] The air outlet of the fan system of the range hood also includes an auxiliary heat exchange pipe, both ends of which are connected to the water inlet pipe of the water heater; the auxiliary heat exchange pipe is provided with a heat exchange device for exchanging heat with the hot air exhausted by the range hood.

[0010] Preferably, the range hood includes an air inlet and a first air inlet passage connecting the air inlet and the fan system;

[0011] The range hood further comprises a second air inlet passage, and the ventilation duct of the water heater is connected to the air inlet through the second air inlet passage;

[0012] Preferably, it further comprises an adjusting mechanism, wherein the adjusting mechanism comprises a first blocking portion and a second blocking portion, which are respectively arranged in the first air inlet channel and the second air inlet channel;

[0013] A regulating device is provided on the water inlet pipeline, the water outlet pipeline, the heating pipeline and the cooling pipeline, and is used to regulate the on-off of each pipeline;

[0014] A control device connected to the regulating device, and further controlling the on and off of each pipeline through the regulating device;

[0015] The control device is also connected to the adjustment mechanism to control the first blocking portion and the second blocking portion to close or open the first air inlet channel and the second air inlet channel respectively.

[0016] Preferably, it also includes a detection device,

[0017] The detection device comprises an air volume detector, which is arranged at the exhaust duct of the water heater and is used to detect the exhaust volume of the water heater;

[0018] And / or, the detection device includes a smoke sensor, which is arranged at the exhaust port of the fan system and is used to detect the exhaust condition of the range hood;

[0019] And / or, the detection device comprises a temperature sensor, which is arranged at the exhaust port of the fan system and is used to detect the temperature of the smoke exhausted by the range hood;

[0020] The detection device is connected to the control device.

[0021] Preferably, when the water heater is in operation and the range hood is in non-operation, the control device drives the first blocking portion to close the first air inlet channel and drives the second blocking portion to open the second air inlet channel;

[0022] When the water heater is in a non-operating state and the range hood is in an operating state, the control device drives the first blocking portion to open the first air inlet channel and drives the second blocking portion to close the second air inlet channel;

[0023] When the water heater and the range hood are both in operation, the control device controls the gear position of the fan system according to the exhaust conditions of the range hood and the actual exhaust gas volume and theoretical exhaust gas volume of the water heater, and / or controls the first blocking part and the second blocking part to move so as to change the air intake volume of the first air inlet channel and the second air inlet channel.

[0024] Preferably, the detection device further comprises:

[0025] An inlet water flow sensor is arranged on the inlet water pipeline, an outlet water flow sensor is arranged on the outlet water pipeline, and a motor temperature sensor is arranged near the motor of the fan system.

[0026] Preferably, it also includes a cleaning pipeline, and the liquid inlet of the cleaning pipeline is connected to the water outlet pipeline of the water heater.

[0027] Preferably, the regulating device includes a first regulating valve arranged at the connection between the water inlet pipeline and the cooling pipeline, and a second regulating valve for controlling the opening and closing of the cooling pipeline.

[0028] Preferably, it further comprises a water outlet branch connected to the water outlet pipeline, and the regulating device further comprises a third regulating valve arranged at the connection between the water outlet pipeline and the water outlet branch.

[0029] When the control device is connected to the cooling pipeline according to the temperature of the motor, the control device controls the third regulating valve to open the water outlet branch and close the water outlet pipeline.

[0030] Preferably, the range hood further comprises a liquid collecting pipeline, a liquid inlet of the liquid collecting pipeline being connected to a cleaning liquid box containing cleaning liquid, a liquid outlet of the cleaning pipeline and a liquid outlet of the liquid collecting pipeline being both arranged close to the volute of the range hood and merged into a spray end, and a liquid outlet of the spray end being arranged toward the volute.

[0031] Preferably, along the spraying direction of the liquid, the liquid outlet of the cleaning pipeline and the liquid outlet of the liquid collecting pipeline are arranged in sequence.

[0032] The positive progressive effect of the utility model is that the oil fume and hot water integrated system realizes the integration of oil fume exhaust and hot water supply by using a common fan system for the range hood and the water heater, which not only saves space cost but also improves the resource utilization efficiency. At the same time, by adding an adjustment mechanism and using a control device to drive the movement of the first blocking part and the second blocking part to change their positions relative to the first air inlet channel and the second air inlet channel, the first air inlet channel and the second air inlet channel can be opened and closed, which not only realizes the adjustment of the air flow of the range hood and the water heater, but also effectively controls the direction of the air volume when entering the interior of the oil fume and hot water integrated system, so as to avoid the air volume entering the interior of the water heater when the range hood is working, thereby interfering with the normal operation of the water heater, so that the oil fume and hot water integrated system can more efficiently and accurately realize the control of oil fume suction and air volume guidance.

[0033] The integrated system of oil fume and hot water realizes the use of water from the water heater to clean the range hood by adding a cleaning pipeline. On the one hand, it realizes the efficient use of energy, and on the other hand, it avoids the cumbersome process of using an additional cleaning source to clean the range hood, thereby improving the cleaning efficiency and convenience of use. At the same time, the use of the water source of the water heater to cool the working fan not only improves the energy utilization efficiency, but also because the specific heat capacity of water is large, its cooling effect is far better than air convection heat exchange, so as to extend the service life of the fan and ensure the normal operation of the range hood.

[0034] Moreover, the integrated system of oil fume and hot water can recycle the heat of the exhaust flue gas after heat exchange, thereby improving the energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the oil fume and hot water integrated system of an embodiment of the utility model.

[0036] Figure 2 This is a schematic diagram of the water circuit of the oil fume and hot water integrated system of an embodiment of the utility model. DETAILED DESCRIPTION

[0037] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0038] like Figure 1-2 As shown, the oil fume and hot water integrated system provided by the utility model includes a water heater 200 and an oil fume hood 300.

[0039] The water heater 200 includes a ventilation duct and an exhaust duct 201. The ventilation duct is arranged in the chamber where the water heater 200 is located. The exhaust duct 201 is connected to the fan system 301 of the range hood 300 to realize the discharge of smoke from the water heater 200. The water heater 200 and the range hood 300 share the fan system 301 of the range hood 300. This design realizes the integration of oil fume discharge and hot water supply, which not only saves space cost, but also improves source utilization efficiency.

[0040] The water heater further includes a water inlet pipe 211 and a water outlet pipe 212 , and a heating pipe 213 disposed between the water inlet pipe 211 and the water outlet pipe 212 .

[0041] The range hood 300 includes an air inlet 302 and a first air inlet passage 303 connecting the air inlet 302 and the fan system 301 .

[0042] The range hood further includes a second air inlet passage 304 , and the ventilation duct of the water heater is connected to the air inlet 302 via the second air inlet passage 304 .

[0043] The range hood further includes a cooling pipe 305, one end of which is connected to the water inlet pipe 211 of the water heater, and the other end is connected to the water outlet pipe 212 of the water heater. The cooling pipe 305 is located in the range hood and is close to the motor of the fan system, and is used to cool the motor by cold water flowing through the cooling pipe 305.

[0044] The air outlet of the fan system of the range hood also includes an auxiliary heat exchange pipe 310, both ends of which are connected to the water inlet pipe 211 of the water heater; the auxiliary heat exchange pipe 310 is provided with a heat exchange device 311 for heat exchange of the hot air discharged from the range hood. When the range hood and the water heater are started at the same time, as long as the temperature of the hot air discharged from the range hood reaches above the heat exchange threshold, the auxiliary heat exchange pipe 310 can be opened to allow at least a portion of the water in the water inlet pipe 211 to first pass through the auxiliary heat exchange pipe 310 for heat exchange, and then enter the heating pipe of the water heater for heating, thereby improving the utilization efficiency of thermal energy and reducing the energy consumption of the water heater.

[0045] The range hood further includes a cleaning pipeline 306, the liquid inlet of the cleaning pipeline 306 is connected to the liquid inlet of the cleaning pipeline and the water outlet pipeline of the water heater. Preferably, one end of the cleaning pipeline 306 is connected to the cooling pipeline 305, and is connected to the water outlet pipeline 212 of the water heater through the cooling pipeline 305. Hot water heated by the water heater can flow into the range hood 300 through the cleaning pipeline 306 to clean the oil stains of the fan system in the range hood. The other end of the cleaning pipeline 306 extends to the volute of the fan system of the range hood.

[0046] The integrated system further includes an adjustment mechanism, which includes a first blocking portion and a second blocking portion (not shown in the figure), which are respectively arranged in the first air inlet channel 303 and the second air inlet channel 304. The first blocking portion and the second blocking portion respectively control the opening or closing of the first air inlet channel 303 and the second air inlet channel 304, or the size of the opening, so as to adjust the air volume of the first air inlet channel and the second air inlet channel, and then when the exhaust volume of the range hood is insufficient, or when the exhaust volume of the water heater is too low, the size of the two channels is adjusted to discharge the exhaust gas or oil smoke of the integrated system.

[0047] like Figure 2 As shown, the integrated system further includes a regulating device, which is arranged on the water inlet pipeline 211, the water outlet pipeline 212, the heating pipeline 213 and the cooling pipeline, and is used to regulate the on-off of each pipeline. Specifically, the regulating device includes a first regulating valve 51 arranged on the water inlet pipeline 211 and close to the cooling pipeline 305, and a second regulating valve 52 arranged on the cleaning pipeline 306, and is used to control the on-off of the cleaning pipeline 306. Preferably, the second regulating valve 52 is arranged at the connection between the cleaning pipeline 306 and the cooling pipeline 305. The first regulating valve 51 is used to control the on-off of the cooling pipeline 305, and the second regulating valve 52 is used to control the water flow direction in the cooling pipeline 305 in addition to controlling the opening and closing of the cleaning pipeline 306. When the cleaning pipeline 306 does not need water supply, the second regulating valve 52 controls the water in the cooling pipeline 305 to flow from the water inlet pipeline of the water heater to the water outlet pipeline of the water heater. When the integrated system is in the cleaning mode, the second regulating valve 52 controls the opening of the cleaning pipeline 306 and controls the water flow direction of the cooling pipeline 305 to flow from the water outlet pipeline 212 of the water heater to the water inlet pipeline 211.

[0048] The integrated system also includes a control device, which is connected to the regulating device and the regulating mechanism, and controls the on-off of each pipeline through the regulating device; controls the first blocking part and the second blocking part to close or open the first air inlet channel and the second air inlet channel respectively.

[0049] The control device is also connected to the first regulating valve 51 and the second regulating valve 52. When the water heater is in normal working condition, the cooling pipeline 305 is closed by the first regulating valve 51. When the fan is overheated and needs to be cooled, the first regulating valve 51 is controlled to open to allow external cold water to flow into the cooling pipeline 305. The cooling pipeline 305 is set near the motor of the fan system of the range hood, and the motor can be cooled through the cooling pipeline 305.

[0050] The control device is also used to control the first regulating valve 51 to open the cooling pipeline 305, and at the same time control the second regulating valve 52 to open the cleaning pipeline 306, and at the same time turn on the water heater, so that the hot water of the water heater can enter the cooling pipeline 305 and the cleaning pipeline 306 through the water outlet pipeline 212 to clean the volute of the range hood.

[0051] The oil fume and hot water integrated system of this embodiment further includes a detection device, which includes an air volume detector 61 provided at the exhaust duct of the water heater for detecting the exhaust volume of the water heater, a smoke sensor 62 provided at the exhaust port of the fan system for detecting the exhaust condition of the range hood, a heat exchange temperature sensor 63 provided at the exhaust port of the fan system for detecting the temperature of the smoke exhausted by the range hood, a flow sensor 64 provided at the water inlet pipe 211 and near the heating pipe, a temperature sensor 65 provided on the water inlet pipe 211 and the water outlet pipe 212 respectively, and a motor temperature sensor 66 provided at the motor of the range hood fan system. The detection devices are all connected to the control device for providing signals to the control device to control the operation of the entire system.

[0052] In addition, the oil fume and hot water integrated system also includes a water outlet branch 214 connected to the water outlet pipe 212, and the regulating device also includes a third regulating valve 53 arranged at the connection between the water outlet pipe 212 and the water outlet branch 214. When the water heater is not running and only the range hood is running, the control device connects the cooling pipe 305 according to the temperature of the motor, and it is necessary to control the third regulating valve 53 to open the water outlet branch for drainage.

[0053] The range hood further comprises a liquid collecting pipeline 3061, the liquid inlet of the liquid collecting pipeline 3061 is connected to a cleaning liquid box 3062 containing cleaning liquid, the liquid outlet of the cleaning pipeline 306 and the liquid outlet of the liquid collecting pipeline 3061 are both arranged close to the volute of the range hood and merged into a spray end 3063, and the liquid outlet of the spray end 3063 is arranged toward the volute. A cleaning component is added between the range hood and the water heater, so that the range hood can be cleaned by using the water source of the water heater, which not only realizes the efficient use of energy, but also avoids the cumbersome process of using an additional cleaning source to clean the range hood, thereby improving the cleaning efficiency and convenience of use. At the same time, the liquid outlet of the cleaning pipeline and the liquid outlet of the liquid collecting pipeline are merged into a spray end, which ensures the mixing of the cleaning liquid and the water source and the cleaning effect. Moreover, the spray end is arranged close to the volute, which can effectively spray the cleaning liquid into the volute, thoroughly clean the volute, and avoid the accumulation of oil and dirt in the volute, thereby improving the service life and performance of the range hood.

[0054] Preferably, along the direction of liquid spraying, the liquid outlet of the cleaning pipeline and the liquid outlet of the liquid collecting pipeline are arranged in sequence. With this structural form, the water pressure in the cleaning pipeline can be used to spray the cleaning liquid in the liquid collecting pipeline onto the volute, which can achieve comprehensive cleaning of the volute in the range hood, and effectively reduce the impact of oil accumulation on the volute. In addition, along the direction of liquid spraying, the cleaning liquid can be sprayed to every corner inside the volute of the range hood in all directions, fully cleaning the volute and other components, removing dirt and oil, and ensuring the operating efficiency of the system. The entire cleaning process can be completed conveniently and quickly, improving the cleaning efficiency and effect.

[0055] As a preferred operating mode, the oil fume and hot water integrated system has multiple working modes, such as the hot water mode with the water heater running, the oil fume extraction mode with the range hood running, the cooling mode with the cooling pipeline opened, and the cleaning mode with the cleaning pipeline opened and the water heater turned on for heating. The cooling mode can be carried out simultaneously with the oil fume extraction mode and the hot water mode, while the cleaning mode can only be carried out alone, and the oil fume extraction mode and the hot water mode can also be carried out simultaneously.

[0056] When the motor temperature sensor detects that the motor temperature of the range hood is too high, the control device controls the first regulating valve 51 to open, and then opens the cooling pipeline 305 to cool the motor of the range hood.

[0057] When the water heater is turned on and the range hood needs to be cooled, it is necessary to ensure that the flow entering the cooling pipeline 305 will not affect the output of the user-side temperature. Specifically, the flow of the cooling pipeline 305 needs to be as small as possible as the flow entering the combustion chamber of the water heater. In fact, the flow required to cool the range hood 300 is very small, and this part of the fluid heated by the fan will flow back to the water outlet pipeline 212 of the water heater through the cooling pipeline 305, so the impact on the temperature of the water outlet pipeline 212 is not significant. However, considering the user experience, the temperature fluctuation should be reduced as much as possible, so the temperature of the water outlet pipeline 212 needs to be negatively feedback adjusted. The parameters that need to be considered in the negative feedback adjustment here are the water inlet temperature Ta and total flow rate Q of the water inlet pipeline 211, the measured water outlet temperature Tb of the water outlet pipeline 212, and the temperature of the water inlet pipeline 212. 11 is the flow rate Q1 entering the combustion chamber of the water heater, so the flow rate entering the cooling pipeline 305 is Q2=Q-Q1, and the temperature T measured at the motor. Through the above parameters, a functional relationship Tb=F(Q,Q1,T,Ta) about the theoretical outlet water temperature of the outlet water pipeline 212 can be obtained, thereby calculating the theoretical outlet water temperature of the outlet water pipeline 212, which can realize preliminary adjustment of the operating power, and then perform negative feedback adjustment according to the outlet water temperature actually measured in the outlet water pipeline 212 to achieve the stability of the outlet water temperature of the outlet water pipeline 212.

[0058] In the cleaning mode, the status of the water heater and the range hood needs to be monitored in real time. Once the water heater needs water or the range hood needs to be turned on, the cleaning mode needs to be stopped. The judgment that the water heater needs water is usually determined by the flow rate of the water flow sensor 65 being greater than the preset water flow rate.

[0059] When the water heater is in operation and the range hood is in non-operation, the control device drives the first blocking portion to close the first air inlet channel and drives the second blocking portion to open the second air inlet channel.

[0060] When the water heater is in a non-operating state and the range hood is in an operating state, the control device drives the first blocking portion to open the first air inlet channel and drives the second blocking portion to close the second air inlet channel.

[0061] By adding a control device to drive the movement of the first blocking part and the second blocking part according to the different working states of the water heater 200 and the range hood 300 to change their positions relative to the first air inlet channel 303 and the second air inlet channel 304, the first air inlet channel 303 and the second air inlet channel 304 can be opened and closed. This not only realizes the adjustment of the air intake flow of the range hood 300 and the water heater 200, but also effectively controls the direction of the air volume when it enters the interior of the oil fume and hot water integrated system 100, so as to avoid the air volume entering the interior of the water heater 200 when the range hood 300 is working, thereby interfering with the normal operation of the water heater 200, so that the oil fume and hot water integrated system 100 can more efficiently and accurately realize the control of oil fume suction and air volume guidance.

[0062] When the water heater and the range hood are both in operation, the control device controls the gear of the fan system according to the exhaust conditions of the range hood and the actual exhaust volume and theoretical exhaust volume of the water heater, and / or controls the first blocking part and the second blocking part to move so as to change the intake volume of the first air inlet channel and the second air inlet channel. The control device can adjust the gear of the fan system 301 according to the feedback data, and control the movement of the adjustment mechanism 400, that is, control the movement of the first blocking part and the second blocking part, so as to change the intake volume of the first air inlet channel 303 and the second air inlet channel 304, so as to achieve precise control of the air volume of the oil fume and hot water integrated system 100 to ensure its normal operation, thereby improving the control efficiency and safety of the device.

[0063] When the water heater 200 and the range hood 300 are both in operation, the air volume of the first and second air inlet channels can be adjusted by controlling the movement of the regulating mechanism, and / or by increasing or decreasing the size of the fan gear, to achieve comprehensive adjustments to prevent smoke leakage from the range hood and ensure that the exhaust gas volume of the water heater exceeds the theoretical exhaust gas volume, thereby ensuring the exhaust of the water heater.

[0064] Increasing the working gear of the fan system 301 can increase the exhaust gas volume of the water heater and increase the suction power of the range hood to prevent smoke leakage.

[0065] Increasing the size of the first air inlet channel will reduce the size of the second air inlet channel. Increasing the size of the first air inlet channel will increase the actual exhaust volume of the water heater, but may cause insufficient suction of the range hood, resulting in smoke leakage.

[0066] When the air intake of the water heater 200 and the range hood 300 do not meet the air intake requirements, the working gear of the fan system 301 can be increased to increase the air intake of both; if one of the water heater 200 and the range hood 300 meets the air intake requirements, the control device can be used to drive the adjustment mechanism 400 to move to evenly and balance the air intake. In addition, when adjusting, the exhaust situation of the range hood 300 must also be considered, and a comprehensive balance must be made to meet the normal operation of the water heater 200 and the range hood 300.

Claims

1. An integrated system of cooking fume and hot water, comprising a water heater and a range hood, characterized in that: The water heater comprises a ventilation duct and an exhaust duct, and the exhaust duct of the water heater is connected to the fan system of the range hood; The water heater further comprises a water inlet pipeline and a water outlet pipeline, and a heating pipeline arranged between the water inlet pipeline and the water outlet pipeline; The range hood comprises a cooling pipeline, one end of which is connected to the water inlet pipeline of the water heater, and the other end of which is connected to the water outlet pipeline of the water heater; The air outlet of the fan system of the range hood also includes an auxiliary heat exchange pipe, both ends of which are connected to the water inlet pipe of the water heater; the auxiliary heat exchange pipe is provided with a heat exchange device for exchanging heat with the hot air exhausted by the range hood.

2. The oil fume and hot water integrated system according to claim 1, characterized in that: Also includes, The range hood comprises an air inlet and a first air inlet passage connecting the air inlet and the fan system; The range hood further comprises a second air inlet passage, and the ventilation duct of the water heater is connected to the air inlet via the second air inlet passage.

3. The integrated system of cooking fume and hot water according to claim 2, characterized in that: Also includes, An adjusting mechanism, the adjusting mechanism comprising a first blocking portion and a second blocking portion, which are respectively arranged in the first air inlet channel and the second air inlet channel; A regulating device is provided on the water inlet pipeline, the water outlet pipeline, the heating pipeline and the cooling pipeline, and is used to regulate the on-off of each pipeline; A control device connected to the regulating device, and further controlling the on and off of each pipeline through the regulating device; The control device is also connected to the adjustment mechanism to control the first blocking portion and the second blocking portion to close or open the first air inlet channel and the second air inlet channel respectively.

4. The oil fume and hot water integrated system according to claim 3, characterized in that: Also includes a detection device, The detection device comprises an air volume detector, which is arranged at the exhaust duct of the water heater and is used to detect the exhaust volume of the water heater; And / or, the detection device includes a smoke sensor, which is arranged at the exhaust port of the fan system and is used to detect the exhaust condition of the range hood; And / or, the detection device comprises a temperature sensor, which is arranged at the exhaust port of the fan system and is used to detect the temperature of the smoke exhausted by the range hood; The detection device is connected to the control device.

5. The integrated system of cooking fume and hot water according to claim 4, characterized in that: When the water heater is in operation and the range hood is in non-operation, the control device drives the first blocking portion to close the first air inlet passage and drives the second blocking portion to open the second air inlet passage; When the water heater is in a non-operating state and the range hood is in an operating state, the control device drives the first blocking portion to open the first air inlet channel and drives the second blocking portion to close the second air inlet channel; When the water heater and the range hood are both in operation, the control device controls the gear position of the fan system according to the exhaust conditions of the range hood and the actual exhaust gas volume and theoretical exhaust gas volume of the water heater, and / or controls the first blocking part and the second blocking part to move so as to change the air intake volume of the first air inlet channel and the second air inlet channel.

6. The oil fume and hot water integrated system according to claim 4, characterized in that: The detection device further comprises: An inlet water flow sensor is arranged on the inlet water pipeline, an outlet water flow sensor is arranged on the outlet water pipeline, and a motor temperature sensor is arranged near the motor of the fan system.

7. The integrated system of cooking fume and hot water according to claim 6, characterized in that: It also includes a cleaning pipeline, the liquid inlet of the cleaning pipeline is connected to the water outlet pipeline of the water heater.

8. The integrated system of cooking fume and hot water according to claim 7, characterized in that: The regulating device comprises a first regulating valve arranged at the connection between the water inlet pipeline and the cooling pipeline, and a second regulating valve for controlling the opening and closing of the cooling pipeline.

9. The oil fume and hot water integrated system according to claim 8, characterized in that: It also includes a water outlet branch connected to the water outlet pipeline, and the regulating device also includes a third regulating valve arranged at the connection between the water outlet pipeline and the water outlet branch. When the control device is connected to the cooling pipeline according to the temperature of the motor, the control device controls the third regulating valve to open the water outlet branch and close the water outlet pipeline.

10. The oil fume and hot water integrated system according to claim 7, characterized in that: The range hood also includes a liquid collecting pipeline, a liquid inlet of the liquid collecting pipeline is connected to a cleaning liquid box containing cleaning liquid, a liquid outlet of the cleaning pipeline and a liquid outlet of the liquid collecting pipeline are both arranged close to the volute of the range hood and merged into a spray end, and the liquid outlet of the spray end is arranged toward the volute.

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