Filtering equipment and temperature control method thereof, and purifying and heating all-in-one machine and control method thereof

Abstract

The invention discloses filtering equipment, a temperature control method of the filtering equipment, a purifying and heating all-in-one machine and a control method of the purifying and heating all-in-one machine. The filtering equipment comprises a shell comprising a bottle body and a cover body, the bottle body and the cover body define a containing cavity, and liquid to be filtered enters the containing cavity from a water inlet pipeline through a water inlet in the cover body; the filter element is positioned in the accommodating cavity; comprising a temperature adjusting device, a first temperature sensor and a temperature controller, the first temperature sensor is used for detecting the first temperature of liquid at the water inlet, and the temperature controller controls the liquid at the water inlet when the first temperature detected by the first temperature sensor is not equal to the preset temperature. And controlling the temperature adjusting device to adjust the first temperature of the liquid at the water inlet of the shell to be equal to the preset temperature. By arranging the temperature control system, it is guaranteed that the temperature of liquid entering the filter element is kept at the preset temperature, so that the filter element keeps high working efficiency, and it is kept that high pure water flow is continuously generated.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification equipment, and in particular to a filtering device and a temperature control method thereof, a water purification and heating all-in-one machine and a control method thereof. Background Art

[0002] The all-in-one water purifier is a new type of water purifier that combines water purification and heating functions. At present, the all-in-one water purifier generally uses reverse osmosis membrane filter elements for filtration. The pure water flow of the reverse osmosis membrane filter element will not only be reduced due to membrane contamination, but also because the inlet water temperature is affected by the ambient temperature, usually from high temperature water in summer (about 30℃) to low temperature water in winter (about 10℃), which causes the pure water flow rate to drop suddenly. This is because the reverse osmosis membrane filter element usually has the highest working efficiency at around 25℃, that is, the pure water flow rate generated is the highest.

[0003] Therefore, how to keep the reverse osmosis membrane filter element at a constant temperature of about 25° C. and maintain a high working efficiency of the reverse osmosis membrane filter element is a technical problem that needs to be solved urgently in this field. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the inlet water temperature of the reverse osmosis membrane filter element is affected by the ambient temperature and affects the working efficiency, and to provide a filtering device and a temperature control method thereof, a heat and water purification integrated machine and a control method thereof.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A filtering device, characterized in that the filtering device comprises:

[0007] The housing comprises a bottle body and a cover body which is arranged on the top of the bottle body, wherein the bottle body and the cover body are arranged to form a containing cavity, and a water inlet is provided on the cover body, and the liquid to be filtered enters the containing cavity through the water inlet through the water inlet through the water inlet pipeline;

[0008] A filter element, located in the accommodating chamber, and used for filtering the liquid in the accommodating chamber;

[0009] A temperature control system includes a temperature regulating device, a first temperature sensor and a temperature controller, wherein the temperature regulating device and the temperature sensor are both electrically connected to the temperature controller, the first temperature sensor is used to detect a first temperature of the liquid at the water inlet, and when the first temperature detected by the first temperature sensor is not equal to a preset temperature, the temperature controller controls the temperature regulating device to adjust the first temperature of the liquid at the water inlet to be equal to the preset temperature.

[0010] In this technical solution, a temperature control system is set up to ensure that the temperature of the liquid at the water inlet is maintained at a preset temperature, thereby ensuring that the temperature of the liquid entering the filter element is maintained at a preset temperature, so that the filter element maintains a high working efficiency and continues to produce a high pure water flow rate.

[0011] Preferably, the temperature regulating device comprises a heating device, which is arranged on the bottle body and is used to heat the liquid in the accommodating chamber; when the first temperature detected by the first temperature sensor is lower than the preset temperature, the temperature controller controls the heating device to heat the liquid entering the accommodating chamber until the first temperature is equal to the preset temperature; and / or,

[0012] The temperature regulating device includes a cooling device, which is arranged on the water inlet pipe and located outside the shell, and is used to cool the liquid entering the cooling device through the water inlet pipe; when the first temperature detected by the first temperature sensor is greater than the preset temperature, the temperature controller controls the cooling device to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature.

[0013] In the present technical solution, a specific heating device for heating the liquid in the accommodating chamber is provided; and a specific cooling device for cooling the liquid in the water inlet pipeline is provided.

[0014] Preferably, a clean water pipe is provided in the accommodating cavity, and the filter element is arranged around the clean water pipe; the top of the filter element is arranged near one end of the water inlet and forms a water inlet end, the outer side of the filter element forms a waste water end, and the inner side near the clean water pipe forms a clean water end; a water stop ring is provided between the water inlet end and the waste water end; the first temperature sensor is arranged corresponding to the water inlet end;

[0015] The temperature control system further comprises a second temperature sensor electrically connected to the temperature controller, the second temperature sensor being arranged corresponding to the waste water end and used for detecting a second temperature of the liquid at the waste water end;

[0016] After the first temperature is equal to the preset temperature, the temperature controller controls the heating device to heat the liquid entering the accommodating chamber until the first difference is less than or equal to the second preset threshold, and the second preset threshold is greater than or equal to zero and less than the first preset threshold, when the second temperature detected by the second temperature sensor is lower than the preset temperature and the absolute value of the first difference between the first temperature and the second temperature is greater than or equal to a first preset threshold, and the first preset threshold is greater than zero.

[0017] In the present technical solution, a second temperature sensor is provided to obtain the second temperature of the liquid at the wastewater end of the filter element; the temperature controller controls the heating device under certain conditions to heat the liquid entering the accommodating cavity to reduce the temperature difference of the liquid at different positions of the filter element.

[0018] Preferably, a clean water pipe is provided in the accommodating cavity, and the filter element is arranged around the clean water pipe; the top of the filter element is arranged near one end of the water inlet and forms a water inlet end, the outer side of the filter element forms a waste water end, and the inner side near the clean water pipe forms a clean water end; a water stop ring is provided between the water inlet end and the waste water end; the first temperature sensor is arranged corresponding to the water inlet end;

[0019] The temperature control system further comprises a second temperature sensor electrically connected to the temperature controller, the second temperature sensor being arranged corresponding to the waste water end and used for detecting a second temperature of the liquid at the waste water end;

[0020] The temperature control system further comprises a third temperature sensor electrically connected to the temperature controller, the third temperature sensor being disposed between the water inlet end and the wastewater end of the filter element and being used to detect a third temperature of the liquid between the water inlet end and the wastewater end;

[0021] After the first temperature is equal to the preset temperature, the temperature controller controls the heating device to heat the liquid entering the accommodating chamber until the absolute value of the first difference, the absolute value of the second difference and the absolute value of the third difference are all less than or equal to the second preset threshold, and the second preset threshold is greater than or equal to zero and less than the first preset threshold, when the second temperature detected by the second temperature sensor and the third temperature detected by the third temperature sensor are both less than the preset temperature, and any one of the absolute value of the first difference between the first temperature and the second temperature, the absolute value of the second difference between the first temperature and the third temperature, and the absolute value of the third difference between the second temperature and the third temperature is greater than or equal to a first preset threshold, and the first preset threshold is greater than zero.

[0022] In the present technical solution, a second temperature sensor is provided to obtain the second temperature of the liquid at the wastewater end of the filter element; a third temperature sensor is provided to obtain the third temperature of the liquid between the water inlet end and the wastewater end of the filter element; and a temperature controller is used to control the heating device under certain conditions to heat the liquid entering the accommodating chamber, thereby further reducing the temperature difference of the liquid at different positions of the filter element.

[0023] Preferably, the temperature control system further comprises a first cooling device temperature sensor and a second cooling device temperature sensor electrically connected to the temperature controller respectively;

[0024] The first cooling device temperature sensor is arranged near the cooling water inlet of the cooling device, and is used to detect the first cooling device temperature of the liquid at the cooling water inlet; the second cooling device temperature sensor is arranged near the cooling water outlet of the cooling device, and is used to detect the second cooling device temperature of the liquid at the cooling water outlet;

[0025] When the temperature of the first cooling device detected by the temperature sensor of the first cooling device is greater than a preset temperature, the temperature controller controls the cooling device to cool the liquid entering the cooling device until the temperature of the second cooling device is equal to the preset temperature.

[0026] In the present technical solution, a first cooling device temperature sensor is provided to obtain a first cooling device temperature of the liquid at the cooling water inlet of the cooling device; a second cooling device temperature sensor is provided to obtain a second cooling device temperature of the liquid at the cooling water outlet of the cooling device; and a temperature controller is used to control the cooling device to cool the liquid entering the cooling device under certain conditions so that the temperature of the liquid flowing out of the cooling water outlet of the cooling device reaches a preset temperature, thereby allowing the overheated liquid in the water inlet pipe to reach the preset temperature before entering the accommodating cavity of the shell.

[0027] A temperature control method for a filter device, characterized in that it is used to control the temperature of a liquid in the filter device as described above, and the temperature control method comprises:

[0028] acquiring the first temperature by using the first temperature sensor;

[0029] The first temperature is compared with a preset temperature to determine whether the first temperature is equal to the preset temperature. If not, the temperature regulating device is controlled to regulate the first temperature of the liquid at the water inlet to be equal to the preset temperature.

[0030] A temperature control method for a filter device, characterized in that it is used to control the temperature of a liquid in the filter device as described above, and the temperature control method comprises:

[0031] acquiring the first temperature by using the first temperature sensor;

[0032] The first temperature is compared with a preset temperature to determine whether the first temperature is lower than the preset temperature or higher than the preset temperature. If the first temperature is lower than the preset temperature, the heating device is controlled to heat the liquid entering the accommodating chamber until the first temperature is equal to the preset temperature; if the first temperature is higher than the preset temperature, the cooling device is controlled to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature.

[0033] A temperature control method for a filter device, characterized in that it is used to control the temperature of a liquid in the filter device as described above, and the temperature control method comprises:

[0034] acquiring the first temperature by using the first temperature sensor;

[0035] Compare the first temperature with a preset temperature to determine whether the first temperature is lower than the preset temperature or higher than the preset temperature; when the first temperature is lower than the preset temperature, control the heating device to heat the liquid entering the accommodating chamber until the first temperature is equal to the preset temperature; when the first temperature is higher than the preset temperature, control the cooling device to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature;

[0036] After the first temperature is equal to the preset temperature, acquiring the second temperature by the second temperature sensor;

[0037] The second temperature is compared with the preset temperature, and the absolute value of the first difference between the first temperature and the second temperature is compared with the first preset threshold value. When the second temperature is lower than the preset temperature and the absolute value of the first difference is greater than or equal to the first preset threshold value, the heating device is controlled to heat the liquid entering the accommodating chamber until the absolute value of the first difference is lower than or equal to the second preset threshold value.

[0038] A temperature control method for a filter device, characterized in that it is used to control the temperature of a liquid in the filter device as described above, and the temperature control method comprises:

[0039] acquiring the first temperature by using the first temperature sensor;

[0040] Compare the first temperature with a preset temperature to determine whether the first temperature is lower than the preset temperature or higher than the preset temperature; when the first temperature is lower than the preset temperature, control the heating device to heat the liquid entering the accommodating chamber until the first temperature is equal to the preset temperature; when the first temperature is higher than the preset temperature, control the cooling device to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature;

[0041] After the first temperature is equal to the preset temperature, acquiring the second temperature through the second temperature sensor, and acquiring the third temperature through the third temperature sensor;

[0042] The second temperature and the third temperature are compared with the preset temperature respectively, and the first difference between the first temperature and the second temperature, the second difference between the first temperature and the third temperature, and the third difference between the second temperature and the third temperature are compared with the first preset threshold respectively; when the second temperature and the third temperature are both lower than the preset temperature, and any one of the absolute value of the first difference, the absolute value of the second difference, and the absolute value of the third difference is greater than or equal to the first preset threshold, the heating device is controlled to heat the liquid entering the accommodating chamber until the absolute value of the first difference, the absolute value of the second difference, and the absolute value of the third difference are all lower than or equal to the second preset threshold.

[0043] A temperature control method for a filter device, characterized in that it is used to control the temperature of a liquid in the filter device as described above, and the temperature control method comprises:

[0044] acquiring the first temperature by using the first temperature sensor;

[0045] Compare the first temperature with a preset temperature to determine whether the first temperature is lower than the preset temperature or higher than the preset temperature; when the first temperature is lower than the preset temperature, control the heating device to heat the liquid entering the accommodating chamber until the first temperature is equal to the preset temperature; when the first temperature is higher than the preset temperature, control the cooling device to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature;

[0046] Before acquiring the first temperature through the first temperature sensor, the temperature control method further includes:

[0047] Acquire the temperature of the first cooling device through the first cooling device temperature sensor, and acquire the temperature of the second cooling device through the second cooling device temperature sensor;

[0048] The temperature of the first cooling device is compared with the preset temperature. When the temperature of the first cooling device is greater than the preset temperature, the cooling device is controlled to cool the liquid entering the cooling device until the temperature of the second cooling device is equal to the preset temperature.

[0049] A heat and air purifier is characterized in that it comprises the filtering device as described above.

[0050] A control method for a heat and air conditioning machine is characterized in that it is used to control the heat and air conditioning machine as described above, wherein the heat and air conditioning machine further comprises a raw water tank and a clean water tank, raw water in the raw water tank is filtered by the filtering device to form clean water which enters the clean water tank for storage, and a drainage device is provided between the clean water tank and the raw water tank; the control method comprises the following steps:

[0051] Step S1, obtaining the standby time of the air conditioner and heat all-in-one machine;

[0052] Step S2, comparing the standby time of the air conditioner and heat integrated machine with the preset time, and determining whether the standby time of the air conditioner and heat integrated machine is greater than or equal to the preset time; if not, executing step S1 again; if yes, executing step S3;

[0053] Step S3, detecting the current position of the clean water in the clean water tank;

[0054] Step S4, comparing the current position of the purified water in the purified water tank with the preset low water level of the purified water in the purified water tank, to determine whether the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank, if not, executing step S5; if so, the purified water and heat integrated machine enters the water making mode;

[0055] Step S5, controlling the drainage device to start working, so that the clean water in the clean water tank flows back into the raw water tank.

[0056] The positive and progressive effects of the present invention are:

[0057] The present invention sets a temperature control system to ensure that the temperature of the liquid at the water inlet is maintained at a preset temperature, thereby ensuring that the temperature of the liquid entering the filter element is maintained at a preset temperature, so that the filter element maintains a high working efficiency and continues to generate a high pure water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 A schematic diagram of the three-dimensional structure of a filtering device provided in Example 1 of the present invention.

[0059] Figure 2 This is a schematic cross-sectional structural diagram of a filtering device provided in Example 1 of the present invention.

[0060] Figure 3 This is a schematic cross-sectional structural diagram of a filtering device provided in Example 2 of the present invention.

[0061] Figure 4 This is a flow chart of a control method for a heat and air conditioner provided in Example 3 of the present invention.

[0062] Figure 5 This is a schematic diagram of the structure of the heat and air conditioning integrated machine provided in Example 3 of the present invention. DETAILED DESCRIPTION

[0063] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0064] Example 1

[0065] like Figure 1 and Figure 2 As shown, this embodiment provides a filtering device 50 , which includes: a housing 51 , a filter element 53 and a temperature control system 54 .

[0066] The shell 51 includes a bottle body 511 and a cover body 512 covering the top of the bottle body 511. The bottle body 511 and the cover body 512 surround a receiving chamber 52. The cover body 512 is provided with a water inlet 521. The liquid to be filtered enters the receiving chamber 52 through the water inlet pipe and the water inlet 521.

[0067] The filter element 53 is located in the accommodating chamber 52 and is used to filter the liquid in the accommodating chamber 52. The filter element 53 in this embodiment is a reverse osmosis membrane filter element 53.

[0068] The temperature control system 54 includes a temperature regulating device, a first temperature sensor 551 and a temperature controller. The temperature regulating device and the temperature sensor are electrically connected to the temperature controller. The first temperature sensor 551 is used to detect the first temperature of the liquid at the water inlet 521. When the first temperature detected by the first temperature sensor 551 is not equal to the preset temperature, the temperature controller controls the temperature regulating device to adjust the first temperature of the liquid at the water inlet 521 to be equal to the preset temperature. Since the filter element 53 in this embodiment is a reverse osmosis membrane filter element 53, preferably, the preset temperature is 25°C, but it is not limited thereto and can also be adjusted according to demand.

[0069] In this way, by setting up a temperature control system 54, the temperature of the liquid at the water inlet 521 is ensured to be maintained at a preset temperature, thereby ensuring that the temperature of the liquid entering the filter element 53 is maintained at a preset temperature, so that the filter element 53 maintains a high working efficiency and continues to produce a high pure water flow rate.

[0070] A first solenoid valve 581 electrically connected to the temperature controller is provided at the water inlet 521 to control whether the liquid in the water inlet pipeline enters the water inlet 521 .

[0071] This embodiment also provides a temperature control method for a filter device, which is used to control the temperature of the liquid in the filter device 50 as described above. The temperature control method includes:

[0072] Acquiring a first temperature through a first temperature sensor;

[0073] The first temperature is compared with the preset temperature to determine whether the first temperature is equal to the preset temperature. If not, the temperature regulating device is controlled to adjust the first temperature of the liquid at the water inlet to be equal to the preset temperature.

[0074] In another implementation of this embodiment, the temperature regulating device includes a heating device 542, which is arranged on the bottle body 511 and is used to heat the liquid in the accommodating chamber 52; when the first temperature detected by the first temperature sensor 551 is lower than the preset temperature, the temperature controller controls the heating device 542 to heat the liquid entering the accommodating chamber 52 until the first temperature is equal to the preset temperature.

[0075] The temperature regulating device also includes a cooling device 541, which is arranged on the water inlet pipeline and located outside the shell 51, and is used to cool the liquid entering the cooling device 541 through the water inlet pipeline; when the first temperature detected by the first temperature sensor 551 is greater than the preset temperature, the temperature controller controls the cooling device 541 to cool the liquid entering the cooling device 541 until the first temperature is equal to the preset temperature.

[0076] However, it is not limited thereto. In other embodiments, the temperature regulating device may include only the heating device 542 or only the cooling device 541, which can be selected according to the ambient temperature of the area of ​​use.

[0077] The heating device 542 is disposed on the bottle body 511, and the cooling device 541 is disposed on the water inlet pipe. However, the present invention is not limited thereto. In other embodiments, the heating device 542 and the cooling device 541 can be disposed at other locations as long as the temperature of the liquid in the water inlet 521 can be adjusted, such as the heating device 542 and the cooling device 541 are both disposed on the housing 51.

[0078] Specifically, the bottle body 511 includes a first bottle body 5111 and a second bottle body 5112 located in the first bottle body 5111, a receiving cavity 52 is provided in the second bottle body 5112, and the heating device 542 is located between the first bottle body 5111 and the second bottle body 5112. The heating device 542 includes a heating body 5421 and a heat preservation structure 5422, and the heating body 5421 is located in the heat preservation structure 5422. The heating body 5421 is located in the heat preservation structure 5422, that is, the heat preservation structure 5422 completely covers the heating body 5421.

[0079] The heating body 5421 is a spiral structure and is arranged around the side wall of the second bottle body 5112. The heat preservation structure 5422 is filled between the first bottle body 5111 and the second bottle body 5112, and covers the outer side of the second bottle body 5112. The heat preservation structure 5422 covers at least 80% of the surface area of ​​the side wall of the second bottle body 5112 to provide a better heat preservation effect. Specifically, the material of the heat preservation structure 5422 is a polyurethane heat preservation material. Preferably, the height of the heating body 5421 and the heat preservation structure 5422 are equal to the height of the second bottle body 5112 to better provide heat to the accommodating cavity 52.

[0080] A clean water pipe 56 is provided in the accommodating cavity 52, and the filter element 53 is arranged around the clean water pipe 56; the top of the filter element 53 is arranged near one end of the water inlet 521 and forms a water inlet end 531, the outer side surface of the filter element 53 forms a waste water end 532, and the inner side surface is close to the clean water pipe 56 to form a clean water end 533; a water stop ring 57 is provided between the water inlet end 531 and the waste water end 532; the first temperature sensor 551 is arranged corresponding to the water inlet end 531.

[0081] The bottom of the bottle body 511 is also provided with a clean water port connected to the clean water pipe 56, and a waste water port connected to the accommodating chamber 52. Specifically, a waste water gap is formed between the outer side surface of the filter element 53 in the accommodating chamber 52 and the inner wall of the second bottle body 5112, and the waste water gap is connected to the waste water port. An annular water stop ring 57 is provided in the waste water gap near the water inlet end 531.

[0082] A second solenoid valve 582 electrically connected to the temperature controller is provided at the clean water outlet to control whether the filtered liquid flows out from the clean water outlet. A third solenoid valve 583 electrically connected to the temperature controller is provided at the waste water outlet to control whether the waste water in the accommodating chamber 52 flows out from the waste water outlet.

[0083] In the normal water production mode, the first solenoid valve 581 is open, the second solenoid valve 582 is open, and the third solenoid valve 583 is normally closed.

[0084] In another implementation of this embodiment, a corresponding temperature control method of the filter device is also included, which is used to control the temperature of the liquid in the filter device 50 as described above. The temperature control method includes:

[0085] Acquiring a first temperature through a first temperature sensor;

[0086] The first temperature is compared with the preset temperature to determine whether the first temperature is lower than the preset temperature or higher than the preset temperature. If the first temperature is lower than the preset temperature, the heating device is controlled to heat the liquid entering the accommodating cavity until the first temperature is equal to the preset temperature; if the first temperature is higher than the preset temperature, the cooling device is controlled to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature.

[0087] The temperature control method of the filtering device obtains the first temperature through the first temperature sensor, and then controls the heating device to heat the liquid entering the accommodating chamber under certain conditions through the controller, or controls the cooling device to cool the liquid entering the cooling device, thereby ensuring that the temperature of the liquid at the water inlet is maintained at a preset temperature, thereby ensuring that the temperature of the liquid entering the filter element is maintained at a preset temperature, so that the filter element maintains a high working efficiency and maintains a continuous generation of a high pure water flow rate.

[0088] In another implementation of this embodiment, the temperature control system 54 includes a second temperature sensor 552 electrically connected to the temperature controller. The second temperature sensor 552 is arranged corresponding to the wastewater end 532 to detect the second temperature of the liquid at the wastewater end 532.

[0089] After the first temperature is equal to the preset temperature, the temperature controller detects a second temperature less than the preset temperature at the second temperature sensor 552, and when the absolute value of the first difference between the first temperature detected by the first temperature sensor 551 and the second temperature detected by the second temperature sensor 552 is greater than or equal to the first preset threshold, the first preset threshold is greater than zero, and the heating device 542 is controlled to heat the liquid entering the accommodating chamber 52 until the absolute value of the first difference is less than or equal to the second preset threshold, the second preset threshold is greater than or equal to zero and less than the first preset threshold, so as to reduce the temperature difference of the liquid at different positions of the filter element 53. Specifically, the first preset threshold is 4°C and the second preset threshold is 2°C; it can also be the first preset threshold is 5°C and the second preset threshold is 4°C, which can be adjusted as needed.

[0090] In this way, by setting up a second temperature sensor 552, the second temperature of the liquid at the wastewater end 532 of the filter element 53 is obtained; the temperature controller controls the heating device 542 under certain conditions to heat the liquid entering the accommodating chamber 52 to reduce the temperature difference of the liquid at different positions of the filter element 53.

[0091] In another implementation of this embodiment, a corresponding temperature control method of the filter device is also included, which is used to control the temperature of the liquid in the filter device 50 as described above. The temperature control method includes:

[0092] Acquiring a first temperature through a first temperature sensor;

[0093] Compare the first temperature with the preset temperature to determine whether the first temperature is less than the preset temperature or greater than the preset temperature, and when the first temperature is less than the preset temperature, control the heating device to heat the liquid entering the accommodating cavity until the first temperature is equal to the preset temperature; when the first temperature is greater than the preset temperature, control the cooling device to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature;

[0094] After the first temperature is equal to the preset temperature, obtaining the second temperature through the second temperature sensor;

[0095] The second temperature is compared with the preset temperature, and the absolute value of the first difference between the first temperature and the second temperature is compared with the first preset threshold value. When the second temperature is lower than the preset temperature and the absolute value of the first difference is greater than or equal to the first preset threshold value, the heating device is controlled to heat the liquid entering the accommodating cavity until the absolute value of the first difference is lower than or equal to the second preset threshold value.

[0096] The temperature control method of the filtering device is achieved by setting a second temperature sensor to obtain the second temperature of the liquid at the wastewater end of the filter element; the temperature controller controls the heating device under certain conditions to heat the liquid entering the accommodating chamber to reduce the temperature difference of the liquid at different positions of the filter element, thereby further improving the working efficiency of the filter element and the pure water flow rate.

[0097] In another implementation of the present embodiment, the temperature control system 54 further includes a first cooling device temperature sensor 554 and a second cooling device temperature sensor 555 electrically connected to the temperature controller respectively. The first cooling device temperature sensor 554 is arranged near the cooling water inlet 5411 of the cooling device 541, and is used to detect the first cooling device temperature of the liquid at the cooling water inlet 5411. The second cooling device temperature sensor 555 is arranged near the cooling water outlet of the cooling device 541, and is used to detect the second cooling device temperature of the liquid at the cooling water outlet. When the first cooling device temperature detected by the first cooling device temperature sensor 554 is greater than the preset temperature, the temperature controller controls the cooling device 541 to cool the liquid entering the cooling device 541 until the second cooling device temperature is equal to the preset temperature.

[0098] In this way, by setting the first cooling device temperature sensor 554, the first cooling device temperature of the liquid at the cooling water inlet 5411 of the cooling device 541 is obtained; by setting the second cooling device temperature sensor 555, the second cooling device temperature of the liquid at the cooling water outlet of the cooling device 541 is obtained; through the temperature controller, under certain conditions, the cooling device 541 is controlled to cool the liquid entering the cooling device 541, so that the temperature of the liquid flowing out of the cooling water outlet of the cooling device 541 reaches a preset temperature, so that the overheated liquid in the water inlet pipeline can reach the preset temperature before entering the accommodating cavity 52 of the shell 51.

[0099] A fourth solenoid valve 584 electrically connected to the temperature controller is provided at the cooling water inlet 5411 of the cooling device, and is used to control whether the liquid in the water inlet pipeline enters the cooling device 541 through the cooling water inlet 5411 of the cooling device. The first solenoid valve 581 as described above is provided between the water outlet 5412 of the cooling device and the housing 51, and is used to control whether the filtered liquid flows out from the clean water outlet and enters the accommodating chamber 52 of the housing.

[0100] In another implementation of this embodiment, a corresponding temperature control method of the filter device is also included, which is used to control the temperature of the liquid in the filter device 50 as described above. The temperature control method includes:

[0101] Acquiring a first temperature through a first temperature sensor;

[0102] Compare the first temperature with the preset temperature to determine whether the first temperature is less than the preset temperature or greater than the preset temperature, and when the first temperature is less than the preset temperature, control the heating device to heat the liquid entering the accommodating cavity until the first temperature is equal to the preset temperature; when the first temperature is greater than the preset temperature, control the cooling device to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature;

[0103] Before acquiring the first temperature through the first temperature sensor, the temperature control method further includes:

[0104] Acquire the temperature of the first cooling device through the first cooling device temperature sensor, and acquire the temperature of the second cooling device through the second cooling device temperature sensor;

[0105] The temperature of the first cooling device is compared with the preset temperature. When the temperature of the first cooling device is greater than the preset temperature, the cooling device is controlled to cool the liquid entering the cooling device until the temperature of the second cooling device is equal to the preset temperature.

[0106] Different implementations in this embodiment can be simultaneously applied to the same filtering device 50, such as Figure 1 and Figure 2 As shown in , it can also be used separately in different filtering devices 50.

[0107] The installation steps of the heating device 542 of this embodiment are as follows: after the first bottle body 5111 and the second bottle body 5112 are installed and assembled, the heating device 542 is placed in the cavity formed between the first bottle body 5111 and the second bottle body 5112, and then the input and output wires of the heating device 542 are taken out through the reserved holes, and then the fixing screws are installed, and finally the first temperature sensor 551 is installed in the accommodating cavity 52, and the control wire of the first temperature sensor 551 is passed through the blind hole reserved on the cover body 512.

[0108] The cover 512 is provided with inlet and outlet wires of the heating device 542 and a control wire of the first temperature sensor 551. The second temperature sensor 552 is installed at the bottom of the bottle 511. The cover 512 is connected to the bottle 511 by screws.

[0109] Finally, the input and output lines of the heating device 542, the input and output lines of the cooling device 541, the control lines of each temperature sensor, the control lines of each solenoid valve and the temperature controller are assembled.

[0110] This embodiment also provides a heat and air conditioning all-in-one machine, which includes the filtering device 50 as described above.

[0111] Example 2

[0112] like Figure 3 As shown, the overall structure of the filtering device 50 of this embodiment is basically the same as the structure in Example 1, the difference is that the temperature control system 54 of the filtering device 50 not only includes a second temperature sensor 552 electrically connected to the temperature controller; the temperature control system 54 also includes a third temperature sensor 553 electrically connected to the temperature controller, and the third temperature sensor 553 is arranged between the water inlet end 531 and the wastewater end 532 of the filter element 53, and is used to detect the third temperature of the liquid between the water inlet end 531 and the wastewater end 532.

[0113] After the first temperature is equal to the preset temperature, when the second temperature detected by the second temperature sensor 552 and the third temperature detected by the third temperature sensor 553 are both lower than the preset temperature, and any one of the absolute value of the first difference between the first temperature and the second temperature, the absolute value of the second difference between the first temperature and the third temperature, and the absolute value of the third difference between the second temperature and the third temperature is greater than or equal to the first preset threshold, and the first preset threshold is greater than zero, the temperature controller controls the heating device 542 to heat the liquid entering the accommodating chamber 52 until the absolute value of the first difference, the absolute value of the second difference, and the absolute value of the third difference are all less than or equal to the second preset threshold, and the second preset threshold is greater than or equal to zero and less than the first preset threshold, so as to reduce the temperature difference of the liquid at different positions of the filter element 53. Specifically, the first preset threshold is 4°C and the second preset threshold is 2°C; it can also be the first preset threshold is 5°C and the second preset threshold is 4°C, which can be adjusted as needed.

[0114] In this way, the second temperature sensor 552 is provided to obtain the second temperature of the liquid at the wastewater end 532 of the filter element 53; the third temperature sensor 553 is provided to obtain the third temperature of the liquid between the water inlet end 531 and the wastewater end 532 of the filter element 53; the temperature controller controls the heating device 542 to heat the liquid entering the accommodating chamber 52 under certain conditions, so as to further reduce the temperature difference of the liquid at different positions of the filter element 53. It should be noted that when the second temperature detected by the second temperature sensor 552 and the third temperature detected by the third temperature sensor 553 are both less than the preset temperature, and any one of the absolute value of the first difference between the first temperature and the second temperature, the absolute value of the second difference between the first temperature and the third temperature, and the absolute value of the third difference between the second temperature and the third temperature is greater than or equal to the first preset threshold value, that is, during the filtration process of the liquid, due to the low ambient temperature, a large temperature drop occurs. In this case, it is necessary to start the heating device 542 to heat the liquid in the housing again, so that the liquid at different positions in the accommodating chamber 52 can be maintained at the preset temperature.

[0115] The third temperature sensor 553 passes through the bottom of the bottle body 511 and enters the middle position of the accommodating chamber 52 to detect the third temperature of the liquid at the middle position in the accommodating chamber 52. Therefore, by monitoring the first temperature, the second temperature and the third temperature at three different positions, the temperature difference of the liquid at different positions of the filter element 53 can be further reduced.

[0116] This embodiment also provides a heat and air conditioning all-in-one machine, which includes the filtering device 50 as described above.

[0117] This embodiment also provides a temperature control method for a filter device, which is used to control the temperature of the liquid in the filter device 50 as described above. The temperature control method includes:

[0118] Acquiring a first temperature through a first temperature sensor;

[0119] Compare the first temperature with the preset temperature to determine whether the first temperature is less than the preset temperature or greater than the preset temperature, and when the first temperature is less than the preset temperature, control the heating device to heat the liquid entering the accommodating cavity until the first temperature is equal to the preset temperature; when the first temperature is greater than the preset temperature, control the cooling device to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature;

[0120] After the first temperature is equal to the preset temperature, the second temperature is acquired by the second temperature sensor, and the third temperature is acquired by the third temperature sensor;

[0121] The second temperature and the third temperature are compared with the preset temperatures respectively, and the absolute value of the first difference between the first temperature and the second temperature, the absolute value of the second difference between the first temperature and the third temperature, and the absolute value of the third difference between the second temperature and the third temperature are compared with the first preset threshold value respectively; when the second temperature and the third temperature are both lower than the preset temperature, and any one of the absolute value of the first difference, the absolute value of the second difference, and the absolute value of the third difference is greater than or equal to the first preset threshold value, the heating device is controlled to heat the liquid entering the accommodating chamber until the absolute value of the first difference, the absolute value of the second difference, and the absolute value of the third difference are all lower than or equal to the second preset threshold value.

[0122] The temperature control method of the filtering device of this embodiment is to obtain the second temperature of the liquid at the wastewater end of the filter element by setting a second temperature sensor; to obtain the third temperature of the liquid between the water inlet end and the wastewater end of the filter element by setting a third temperature sensor; and to control the heating device to heat the liquid entering the accommodating chamber under certain conditions through the temperature controller, so as to further reduce the temperature difference of the liquid at different positions of the filter element.

[0123] Example 3

[0124] This embodiment provides a control method for a heat and air conditioner, which is used to control the heat and air conditioner in Embodiment 1 and Embodiment 2.

[0125] The heat and water purifier also includes a raw water tank and a clean water tank. The raw water in the raw water tank is filtered by the filtering device to form clean water that enters the clean water tank for storage. A drainage device is provided between the clean water tank and the raw water tank. The flow chart of the control method of the heat and water purifier of this embodiment is as follows: Figure 4 As shown, the control method includes the following steps:

[0126] Step S100: Obtaining the standby time of the air conditioner and heat generator;

[0127] Step S200: compare the standby time of the air conditioner and heat all-in-one machine with the preset time to determine whether the standby time of the air conditioner and heat all-in-one machine is greater than or equal to the preset time. If not, execute step S100 again; if yes, execute step S300;

[0128] Step S300: Detecting the current position of the purified water in the purified water tank;

[0129] Step S400: Compare the current position of the purified water in the purified water tank with the preset low water level of the purified water in the purified water tank to determine whether the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank. If not, execute step S500; if so, the purifier and heat all-in-one machine enters the water making mode;

[0130] Step S500: Control the drainage device to start working, so that the clean water in the clean water tank flows back to the raw water tank.

[0131] In this way, when the standby time of the heat and water purifier is greater than or equal to the preset time, the excess clean water in the clean water tank is pumped back to the original water tank to avoid the breeding of bacteria in the clean water tank due to excessive long-term unused clean water, thereby improving the quality of clean water and ensuring the user experience. Through the above control method, it can be achieved that there is always fresh water in the clean water tank, and at the same time, the clean water is filtered through the filtration system and is of hygienic and safe water quality. Among them, the filtration device has the structure of Example 1 or Example 2, which ensures that the temperature of the liquid at the water inlet is maintained at the preset temperature by setting a temperature control system, thereby ensuring that the temperature of the liquid entering the filter element is maintained at the preset temperature, so that the filter element maintains a high working efficiency and continues to produce a high pure water flow.

[0132] It should be noted that the water in the raw water tank at this time includes raw water that has not been filtered by the filtering device and clean water that has been filtered by the filtering device but flows back into the raw water tank, but the two are in a mixed state and will later be filtered by the filtering device before entering the clean water tank. Therefore, the liquid in a mixed state is also called raw water.

[0133] After step S500, the control method further includes:

[0134] Step S600: Detecting the current position of the purified water in the purified water tank;

[0135] Step S700: Determine whether the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank. If not, execute step S500; if so, the purifier and heat all-in-one machine enters the water making mode, and controls the drainage device to stop working.

[0136] In this way, by stopping the drainage device when the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank, it is ensured that the drainage device only pumps the clean water in the clean water tank back into the raw water tank, and avoids pumping air back into the raw water tank.

[0137] The heat and air purifier also includes a filtering device, a booster pump is provided between the raw water tank and the filtering device, a pumping device is provided between the clean water tank and the liquid outlet, and the standby time of the heat and air purifier includes a first standby time of the booster pump and a second standby time of the pumping device.

[0138] Specifically, step S100 includes: respectively acquiring a first standby time length and a second standby time length.

[0139] Specifically, step S200 includes: comparing the first standby time and the second standby time with the preset time respectively, determining whether the first standby time and the second standby time are both greater than or equal to the preset time, if not, executing step S100 again; if so, executing step S300.

[0140] In this way, the first standby time of the booster pump indicates the time during which the booster pump is not working, that is, the time during which the heat and water purification machine does not produce water, and the second standby time of the pumping device indicates the time during which the pumping device is not working, that is, the time during which the heat and water purification machine does not produce liquid. When the first standby time and the second standby time are both greater than or equal to the preset time, that is, when the heat and water purification machine does not produce water and the time during which liquid is not produced are both greater than or equal to the preset time, the excess clean water in the clean water tank is pumped back to the raw water tank, ensuring that the excess clean water in the clean water tank is retained in the clean water tank for more than the preset time and needs to be pumped back to the raw water tank.

[0141] Preferably, in the water production mode in step S400, the control method includes:

[0142] Step S410: obtaining the current position of the raw water in the raw water tank;

[0143] Step S420: Compare the current position of the raw water in the raw water tank with the preset low water level of the raw water in the raw water tank to determine whether the current position of the raw water in the raw water tank is lower than the preset low water level of the raw water in the raw water tank; if not, execute step S430; if yes, refill the raw water tank with liquid;

[0144] Step S430: Control the booster pump to start working, so that the raw water in the raw water tank is filtered by the filtering device to form clean water that enters the clean water tank for storage;

[0145] Step S440: obtaining the current position of the purified water in the purified water tank;

[0146] Step S450: Compare the current position of the clean water in the clean water tank with the preset high water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset high water level of the clean water in the clean water tank. If so, execute step S430; if not, control the booster pump to stop working and the clean water and heat integrated machine enters standby mode.

[0147] It should be noted that the control method in the water production mode can be in step 400, but is not limited to step 400, and can also be in other cases. As long as it is determined that the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank, the water purification and heat integrated machine enters the water production mode and executes the above steps.

[0148] The air purifier and heat all-in-one machine also includes a normal temperature water outlet mode. In the normal temperature water outlet mode, the control method includes:

[0149] Obtain the normal temperature water outlet demand signal;

[0150] Get the current position of the clean water in the clean water tank;

[0151] The current position of the clean water in the clean water tank is compared with the preset low water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank; if not, the pumping device is controlled to start working to make the clean water in the clean water tank discharge through the liquid outlet; if so, the water purification and heat integrated machine enters the water making mode.

[0152] The air-conditioning and heating machine also includes a heating water outlet mode. In the heating water outlet mode, the control method includes:

[0153] Obtaining heating water demand signal;

[0154] Get the current position of the clean water in the clean water tank;

[0155] The current position of the clean water in the clean water tank is compared with the preset low water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank; if not, the pumping device is controlled to start working so that the clean water in the clean water tank is heated by the heating body and discharged to the liquid outlet; if so, the clean water heater enters the water making mode.

[0156] The clean water in the clean water tank is heated by the heating body and then discharged to the liquid outlet. The control method further includes:

[0157] Obtaining a first temperature of the purified water before it enters the heating body;

[0158] Obtaining a second temperature of the purified water after passing through the heating body;

[0159] The heating body is controlled to adjust the heating power of the heating body according to the first temperature and the second temperature.

[0160] In this way, the heating power of the heating body is adjusted by comparing the first temperature and the second temperature to achieve the water outlet temperature required by the user.

[0161] The control method also includes:

[0162] Get the TDS value of purified water;

[0163] The TDS value of purified water is displayed on the interactive interface.

[0164] In this way, through the above settings, it is convenient for users to obtain the TDS value of purified water in the interactive interface.

[0165] like Figure 5 As shown, the present embodiment further provides a heat and air purifier 1, which adopts the control method as described above. The heat and air purifier 1 of the present embodiment adopts the control method as described above, and can pump the excess clean water in the clean water tank 3 back to the raw water tank 2 when the standby time of the heat and air purifier 1 is greater than or equal to the preset time, so as to avoid the excessive clean water that has not been used for a long time from breeding bacteria in the clean water tank 3, thereby improving the quality of clean water and ensuring the user experience.

[0166] As described above, the heat and water purification machine 1 also includes a raw water tank 2 and a clean water tank 3. The raw water in the raw water tank 2 is filtered by the filtering device 5 to form clean water and enter the clean water tank 3 for storage. A drainage device 4 is provided between the clean water tank 3 and the raw water tank 2. Specifically, the drainage device 4 is a drainage pump, but is not limited thereto, and may also be other devices with drainage functions. Among them, the filtering device has the structure of Example 1 or Example 2, and it is provided with a temperature control system to ensure that the temperature of the liquid at the water inlet is maintained at a preset temperature, thereby ensuring that the temperature of the liquid entering the filter element is maintained at a preset temperature, so that the filter element maintains a high working efficiency and maintains a continuous generation of a high pure water flow rate.

[0167] The volume of the raw water tank 2 is greater than or equal to twice the volume of the clean water tank 3. Thus, by setting the volume of the raw water tank 2 to be greater than or equal to twice the volume of the clean water tank 3, it is ensured that there is enough space to accommodate the clean water pumped back from the clean water tank 3 into the raw water tank 2.

[0168] A low water level detector 21 is provided in the raw water tank 2, and the low water level detector 21 detects whether the current position of the raw water in the raw water tank 2 is lower than the preset low water level of the raw water in the raw water tank 2. A high water level detector is provided in the raw water tank 2, and is used to detect whether the current position of the raw water in the raw water tank 2 reaches the preset high water level of the raw water in the raw water tank 2. The raw water tank 2 is also provided with a first in-position detector 31.

[0169] A communicating vessel 12 connected to the clean water tank 3 is provided beside the clean water tank 3. A low water level float 13 and a high water level float 14 are provided in the communicating vessel 12. The low water level float 13 is used to sense whether the clean water in the clean water tank 3 is at a preset low water level, and the high water level float 14 is used to sense whether the clean water is at a preset high water level. The clean water tank 3 is also provided with a second in-situ detector 32.

[0170] A booster pump 6 is provided between the raw water tank 2 and the filter device 5, and the booster pump 6 allows the raw water in the raw water tank 2 to flow to the filter device 5 for filtration. A wastewater solenoid valve 11 is also provided between the filter device 5 and the raw water tank 2, and allows the wastewater of the filter device 5 to flow back to the raw water tank 2. It should be noted that the wastewater solenoid valve 11 may be the third solenoid valve in Embodiment 1, or may be a solenoid valve provided separately from the third solenoid valve.

[0171] A pumping device 8 is provided between the clean water tank 3 and the liquid outlet 7 to allow the clean water in the clean water tank 3 to flow toward the liquid outlet 7. Specifically, the pumping device 8 is a water pump, but is not limited thereto, and may also be other devices with a pumping function.

[0172] A heating body 9 is also provided on the liquid outlet flow path where the clean water in the clean water tank 3 flows to the liquid outlet 7, for heating the clean water in the liquid outlet flow path. A first NTC temperature sensor 15 is also provided on the liquid outlet flow path between the heating body 9 and the clean water tank 323, for obtaining the first temperature of the clean water before it enters the heating body 9. A second NTC temperature sensor 16 is also provided on the liquid outlet flow path between the heating body 9 and the liquid outlet 7, for obtaining the second temperature of the clean water after it passes through the heating body 9. Specifically, the first NTC temperature sensor 15 and the second NTC temperature sensor 16 are both NTC temperature sensors.

[0173] A UV sterilizer 10 is also provided between the clean water tank 3 and the heating body 9 to sterilize the clean water in the liquid outlet flow path.

[0174] A raw water TDS probe 17 is provided between the raw water tank 2 and the filter device 5 to detect the TDS value of the raw water. A clean water TDS probe 18 is provided between the clean water tank 323 and the liquid outlet 7 to detect the TDS value of the clean water.

[0175] A one-way valve 19 is provided between the filtering device 5 and the clean water tank 3 to allow the filtered clean water to flow into the clean water tank.

[0176] An air chamber 41 is also provided between the heating body 9 and the liquid outlet 7, for separating the purified water in the liquid outlet flow path from gas to liquid, so as to prevent the purified water flowing out of the liquid outlet 7 from containing gas, thereby ensuring the safety of use. The gas outlet of the communicating vessel 12 is also connected to the air chamber 41, so that the gas in the communicating vessel 12 can be discharged to the outside through the air chamber 41.

[0177] The integrated water purifier and heat machine 1 further includes a controller, and the drainage device 4, the connecting vessel 12, the first in-situ detector 31, the low water level detector 21, the second in-situ detector 32, the filtering device 5, the heating body 9, the first NTC temperature sensor 15, the second NTC temperature sensor 16, the raw water TDS probe 17 and the purified water TDS probe are electrically connected to the controller respectively. It should be noted that the controller and the temperature controller can be the same controller or different controllers arranged on the same control board.

[0178] The air conditioner and heat all-in-one machine 1 also includes a control panel electrically connected to the controller, and an interactive interface is provided on the control panel.

[0179] The all-in-one heat and water purifier 1 of this embodiment adopts the above-mentioned control method, and can pump excess clean water in the clean water tank 3 back to the raw water tank 2 when the standby time of the all-in-one heat and water purifier 1 is greater than or equal to the preset time, so as to avoid the breeding of bacteria in the clean water tank 3 due to excessive clean water that has not been used for a long time, thereby improving the quality of clean water and ensuring the user experience.

[0180] It should be noted that, in order to avoid the problem of a large number of bacteria breeding in the clean water tank 3 due to long-term non-use of the all-in-one heat and purifier 1, those skilled in the art usually adopt means of strengthening sterilization, such as by increasing the heating treatment temperature, or strengthening the sterilization effect of the UV sterilizer 10. However, the purified water treated in this way will cause the problem of poor taste of the output water. The all-in-one heat and purifier 1 and the control method of the all-in-one heat and purifier 1 of this embodiment avoid the problem of poor taste of the output water.

[0181] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A filtering device, characterized in that: The filtering device comprises: The housing comprises a bottle body and a cover body which is arranged on the top of the bottle body, wherein the bottle body and the cover body are arranged to form a containing cavity, and a water inlet is provided on the cover body, and the liquid to be filtered enters the containing cavity through the water inlet through the water inlet through the water inlet pipeline; A filter element, located in the accommodating chamber, and used for filtering the liquid in the accommodating chamber; A temperature control system includes a temperature regulating device, a first temperature sensor and a temperature controller, wherein the temperature regulating device and the temperature sensor are both electrically connected to the temperature controller, the first temperature sensor is used to detect a first temperature of the liquid at the water inlet, and when the first temperature detected by the first temperature sensor is not equal to a preset temperature, the temperature controller controls the temperature regulating device to adjust the first temperature of the liquid at the water inlet to be equal to the preset temperature.

2. The filtering device according to claim 1, characterized in that The temperature regulating device comprises a heating device, which is arranged on the bottle body and is used to heat the liquid in the accommodating chamber; when the first temperature detected by the first temperature sensor is lower than the preset temperature, the temperature controller controls the heating device to heat the liquid entering the accommodating chamber until the first temperature is equal to the preset temperature; and / or, The temperature regulating device includes a cooling device, which is arranged on the water inlet pipe and located outside the shell, and is used to cool the liquid entering the cooling device through the water inlet pipe; when the first temperature detected by the first temperature sensor is greater than the preset temperature, the temperature controller controls the cooling device to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature.

3. The filtering device according to claim 2, characterized in that A clean water pipe is provided in the accommodating cavity, and the filter element is arranged around the clean water pipe; the top of the filter element is arranged near one end of the water inlet and forms a water inlet end, the outer side of the filter element forms a waste water end, and the inner side near the clean water pipe forms a clean water end; a water stop ring is provided between the water inlet end and the waste water end; the first temperature sensor is arranged corresponding to the water inlet end; The temperature control system further comprises a second temperature sensor electrically connected to the temperature controller, the second temperature sensor being arranged corresponding to the waste water end and used for detecting a second temperature of the liquid at the waste water end; After the first temperature is equal to the preset temperature, the temperature controller controls the heating device to heat the liquid entering the accommodating chamber until the absolute value of the first difference is less than or equal to the second preset threshold, and the second preset threshold is greater than or equal to zero and less than the first preset threshold, when the second temperature detected by the second temperature sensor is lower than the preset temperature and the absolute value of the first difference between the first temperature and the second temperature is greater than or equal to a first preset threshold, and the first preset threshold is greater than zero.

4. The filtering device according to claim 2, characterized in that A clean water pipe is provided in the accommodating cavity, and the filter element is arranged around the clean water pipe; the top of the filter element is arranged near one end of the water inlet and forms a water inlet end, the outer side of the filter element forms a waste water end, and the inner side near the clean water pipe forms a clean water end; a water stop ring is provided between the water inlet end and the waste water end; the first temperature sensor is arranged corresponding to the water inlet end; The temperature control system further comprises a second temperature sensor electrically connected to the temperature controller, the second temperature sensor being arranged corresponding to the waste water end and used for detecting a second temperature of the liquid at the waste water end; The temperature control system further comprises a third temperature sensor electrically connected to the temperature controller, the third temperature sensor being disposed between the water inlet end and the wastewater end of the filter element and being used to detect a third temperature of the liquid between the water inlet end and the wastewater end; After the first temperature is equal to the preset temperature, the temperature controller controls the heating device to heat the liquid entering the accommodating chamber until the absolute value of the first difference, the absolute value of the second difference and the absolute value of the third difference are all less than or equal to the second preset threshold, and the second preset threshold is greater than or equal to zero and less than the first preset threshold, when the second temperature detected by the second temperature sensor and the third temperature detected by the third temperature sensor are both less than the preset temperature, and any one of the absolute value of the first difference between the first temperature and the second temperature, the absolute value of the second difference between the first temperature and the third temperature, and the absolute value of the third difference between the second temperature and the third temperature is greater than or equal to a first preset threshold, and the first preset threshold is greater than zero.

5. The filtering device according to any one of claims 2 to 4, characterized in that: The temperature control system further comprises a first cooling device temperature sensor and a second cooling device temperature sensor electrically connected to the temperature controller respectively; The first cooling device temperature sensor is arranged near the cooling water inlet of the cooling device, and is used to detect the first cooling device temperature of the liquid at the cooling water inlet; the second cooling device temperature sensor is arranged near the cooling water outlet of the cooling device, and is used to detect the second cooling device temperature of the liquid at the cooling water outlet; When the temperature of the first cooling device detected by the temperature sensor of the first cooling device is greater than a preset temperature, the temperature controller controls the cooling device to cool the liquid entering the cooling device until the temperature of the second cooling device is equal to the preset temperature.

6. A temperature control method for a filtering device, characterized in that: For controlling the temperature of liquid in the filtering device according to any one of claims 1 to 5, the temperature control method comprises: acquiring the first temperature by using the first temperature sensor; The first temperature is compared with a preset temperature to determine whether the first temperature is equal to the preset temperature. If not, the temperature regulating device is controlled to regulate the first temperature of the liquid at the water inlet to be equal to the preset temperature.

7. A temperature control method for a filtering device, characterized in that: For controlling the temperature of liquid in the filtering device according to any one of claims 2 to 5, the temperature control method comprises: acquiring the first temperature by using the first temperature sensor; The first temperature is compared with a preset temperature to determine whether the first temperature is lower than the preset temperature or higher than the preset temperature. If the first temperature is lower than the preset temperature, the heating device is controlled to heat the liquid entering the accommodating chamber until the first temperature is equal to the preset temperature; if the first temperature is higher than the preset temperature, the cooling device is controlled to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature.

8. A temperature control method for a filtering device, characterized in that: For controlling the temperature of liquid in the filtering device according to claim 3, the temperature control method comprises: acquiring the first temperature by using the first temperature sensor; Compare the first temperature with a preset temperature to determine whether the first temperature is lower than the preset temperature or higher than the preset temperature; when the first temperature is lower than the preset temperature, control the heating device to heat the liquid entering the accommodating chamber until the first temperature is equal to the preset temperature; when the first temperature is higher than the preset temperature, control the cooling device to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature; After the first temperature is equal to the preset temperature, acquiring the second temperature by the second temperature sensor; The second temperature is compared with the preset temperature, and the absolute value of the first difference between the first temperature and the second temperature is compared with the first preset threshold value. When the second temperature is lower than the preset temperature and the absolute value of the first difference is greater than or equal to the first preset threshold value, the heating device is controlled to heat the liquid entering the accommodating chamber until the absolute value of the first difference is lower than or equal to the second preset threshold value.

9. A temperature control method for a filtering device, characterized in that: For controlling the temperature of liquid in the filtering device according to claim 4, the temperature control method comprises: acquiring the first temperature by using the first temperature sensor; Compare the first temperature with a preset temperature to determine whether the first temperature is lower than the preset temperature or higher than the preset temperature; when the first temperature is lower than the preset temperature, control the heating device to heat the liquid entering the accommodating chamber until the first temperature is equal to the preset temperature; when the first temperature is higher than the preset temperature, control the cooling device to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature; After the first temperature is equal to the preset temperature, acquiring the second temperature through the second temperature sensor, and acquiring the third temperature through the third temperature sensor; The second temperature and the third temperature are compared with the preset temperature respectively, and the absolute value of the first difference between the first temperature and the second temperature, the absolute value of the second difference between the first temperature and the third temperature, and the absolute value of the third difference between the second temperature and the third temperature are compared with the first preset threshold respectively; when the second temperature and the third temperature are both lower than the preset temperature, and any one of the absolute value of the first difference, the absolute value of the second difference, and the absolute value of the third difference is greater than or equal to the first preset threshold, the heating device is controlled to heat the liquid entering the accommodating chamber until the absolute value of the first difference, the absolute value of the second difference, and the absolute value of the third difference are all lower than or equal to the second preset threshold.

10. A temperature control method for a filtering device, characterized in that: For controlling the temperature of liquid in the filtering device according to claim 5, the temperature control method comprises: acquiring the first temperature by using the first temperature sensor; Compare the first temperature with a preset temperature to determine whether the first temperature is lower than the preset temperature or higher than the preset temperature; when the first temperature is lower than the preset temperature, control the heating device to heat the liquid entering the accommodating chamber until the first temperature is equal to the preset temperature; when the first temperature is higher than the preset temperature, control the cooling device to cool the liquid entering the cooling device until the first temperature is equal to the preset temperature; Before acquiring the first temperature through the first temperature sensor, the temperature control method further includes: Acquire the temperature of the first cooling device through the first cooling device temperature sensor, and acquire the temperature of the second cooling device through the second cooling device temperature sensor; The temperature of the first cooling device is compared with the preset temperature. When the temperature of the first cooling device is greater than the preset temperature, the cooling device is controlled to cool the liquid entering the cooling device until the temperature of the second cooling device is equal to the preset temperature.

11. A heat and air conditioning machine, characterized in that: The integrated heat and air purifier comprises the filtering device as described in any one of claims 1-5.

12. A control method for a heat and air conditioning machine, characterized in that: Used to control the integrated heat and water purifier according to claim 11, wherein the integrated heat and water purifier further comprises a raw water tank and a clean water tank, the raw water in the raw water tank is filtered by the filtering device to form clean water which enters the clean water tank for storage, and a drainage device is provided between the clean water tank and the raw water tank; the control method comprises the following steps: Step S1, obtaining the standby time of the air conditioner and heat all-in-one machine; Step S2, comparing the standby time of the air conditioner and heat integrated machine with the preset time, and determining whether the standby time of the air conditioner and heat integrated machine is greater than or equal to the preset time; if not, executing step S1 again; if yes, executing step S3; Step S3, detecting the current position of the clean water in the clean water tank; Step S4, comparing the current position of the purified water in the purified water tank with the preset low water level of the purified water in the purified water tank, to determine whether the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank, if not, executing step S5; if so, the purified water and heat integrated machine enters the water making mode; Step S5, controlling the drainage device to start working, so that the clean water in the clean water tank flows back into the raw water tank.

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