A laundry drying apparatus and a drying control method thereof

Abstract

The application relates to a washing and drying equipment and a drying control method of the washing and drying equipment, belongs to the technical field of clothes care, and comprises an inner drum, an outer drum and a drying air duct connected between an air inlet and an air outlet of the outer drum, wherein an intelligent cooling and dehumidifying module and a fan for providing circulating flow power for a drying circulating system are arranged on the drying air duct; the intelligent cooling and dehumidifying module comprises a shell, a plurality of heat exchange cavities are arranged in the shell, a shell space formed between the heat exchange cavities and the inner wall of the shell is used for containing cooling water, and the shell space is provided with a stirring device. The application adds the intelligent cooling and dehumidifying module on a traditional drying air duct condensing system to replace the existing condensing means of "connecting a water tap outside a rear air duct to connect air duct spraying cooling heat exchange", so that the condensing efficiency can be greatly improved to improve the drying efficiency. The stirring device arranged in the module not only increases the heat exchange means, but also makes the condensing water heat exchange uniform.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothes care, in particular to a washing and drying device and a drying control method of the washing and drying device. BACKGROUND

[0002] As an important part of the washing machine market, the drying all-in-one machine once attracted the favor of consumers. However, the washing and drying all-in-one machine is criticized for the long drying time of clothes. How to improve the drying efficiency and reduce the drying time has always been a major issue that washing machine manufacturers must face, and it is also a major challenge faced by major manufacturers.

[0003] From the existing drum washing and drying all-in-one machine in the market, the main principle of drying is to realize heat exchange by high-temperature and high-humidity cylinder hot and humid air meeting cold. The common implementation way is to connect the water faucet outside the rear air duct to the air duct to spray cooling heat exchange. However, this spray cooling heat exchange condensing method is low in efficiency, strong in randomness, and high in water consumption. Or a kind of air duct dehumidification structure and clothes care machine, the authorization announcement number is CN214193846U, the cooling component is arranged in the air duct, so that the wet hot air force is contacted and exchanged when passing through. The efficiency of this condensing method is still low, because the cooling water is in a fixed form, which leads to uneven temperature, and the heat exchange effect is not ideal when the wet hot air contacts the wall of the cooling component. SUMMARY

[0004] In order to overcome the problems in the related art, the present application provides a washing and drying device and a drying control method of the washing and drying device.

[0005] The first aspect of the present application provides a washing and drying device, which comprises an inner cylinder, an outer cylinder and a drying air duct connected between the air inlet and the air outlet of the outer cylinder, wherein the inner cylinder, the outer cylinder and the drying air duct constitute a drying circulation system; and an intelligent cooling and dehumidification module and a fan for providing circulating flow power for the drying circulation system are arranged on the drying air duct.

[0006] The intelligent cooling and dehumidification module comprises a shell, a plurality of heat exchange cavities are arranged in the shell, the wet hot air flows in the heat exchange cavities, a shell side space formed between the heat exchange cavities and the inner wall of the shell is used to accommodate cooling water, a water inlet pipe and a water outlet pipe communicating with the shell side space are arranged on the outer wall of the shell, the water inlet pipe is provided with a water inlet valve and a first temperature sensor, the water outlet pipe is provided with a water outlet valve and a second temperature sensor, and a stirring device is arranged in the shell side space to promote the heat exchange between the cooling water and the heat exchange cavities.

[0007] The shell side space is further provided with a liquid level sensor.

[0008] The water inlet valve and the water outlet valve can be controlled to adjust the valve opening degree according to the inlet water temperature detected by the first temperature sensor and the outlet water temperature detected by the second temperature sensor.

[0009] The stirring device can be controlled to adjust the rotating speed according to the liquid level of the shell space detected by the liquid level sensor.

[0010] Further, the stirring device is a rotating device with an impeller, and is provided with an alternating current motor to realize forward and reverse rotation at different rotating speeds.

[0011] Further, the shell space is provided with a plurality of partitions, and the plurality of partitions divide the shell space into a plurality of heat exchange spaces, and each heat exchange space is provided with one stirring device.

[0012] The heat exchange cavity is divided into a plurality of heat exchange units, and the plurality of heat exchange units are arranged one-to-one corresponding to the plurality of heat exchange spaces.

[0013] Further, the shell space is provided with a plurality of partitions, and the plurality of partitions divide the shell space into a plurality of heat exchange spaces, and each heat exchange space is provided with one stirring device; the heat exchange cavity is divided into a plurality of heat exchange units, and the plurality of heat exchange units are arranged one-to-one corresponding to the plurality of heat exchange spaces; the partitions of each adjacent two heat exchange spaces are formed with a communication hole or a communication channel between the partitions, and the communication hole / communication channel is lower closer to the water outlet position of the water outlet pipe side, the volume of the heat exchange space is smaller, and the flow area of the corresponding heat exchange cavity is smaller.

[0014] Further, when the cooling water temperature of the shell space cannot meet the cooling and dehumidifying requirement, the cooling water of the heat exchange space is sequentially discharged from the water outlet pipe side to the water inlet pipe side.

[0015] The second aspect of the application provides a drying control method for the above-mentioned washing and drying equipment, which comprises an inner drum, an outer drum, and a drying air duct connected between the air inlet and the air outlet of the outer drum, wherein the inner drum, the outer drum, and the drying air duct form a drying circulation system; the drying air duct is provided with an intelligent cooling and dehumidifying module and a fan for providing circulation flow power for the drying circulation system.

[0016] In another aspect of the application, a drying treatment method with an intelligent cooling and dehumidifying module is provided, wherein the intelligent cooling and dehumidifying module comprises a shell, a plurality of heat exchange cavities are arranged in the shell, a wet hot gas flow flows in the heat exchange cavities, a shell space formed between the heat exchange cavities and the inner wall of the shell is used to accommodate cooling water, a water inlet pipe and a water outlet pipe are arranged on the outer wall of the shell and communicate with the shell space, and the drying treatment method comprises the following steps:

[0017] After the temperature of the wet hot gas in the washing and drying equipment rises to a program set value, the intelligent cooling and dehumidifying module starts to work.

[0018] In the drying operation, the cooling water inlet temperature δ1, the cooling water outlet temperature δ2 and the cooling water level h in the shell space are obtained in real time;

[0019] The water inlet valve and the water outlet valve are controlled according to the δ1, δ2 and h.

[0020] As an example, the controlling of the water inlet valve and the water outlet valve according to the δ1, δ2 and h includes:

[0021] The difference Δδ of δ2-δ1 is calculated, and Δδ is compared with a first preset value Δδ 01 and a second preset value Δδ 02 .

[0022] If Δδ 01 ≦Δδ<Δδ 02 , it is determined whether h is greater than or equal to a preset value h0, wherein Δδ 01 is the first preset value, and Δδ 02 is the second preset value.

[0023] If Δδ 01 ≦Δδ<Δδ 02 , it is determined whether h is greater than or equal to a preset value h0, wherein Δδ 01 is the first preset value, and Δδ 02 is the second preset value.

[0024] If the determination result is h≧h 01 , the stirring device is started.

[0025] Further optionally, the drying control method further includes: if the determination result is h<h 01 , the water inlet valve is opened alone or the water inlet valve and the water outlet valve are opened simultaneously, and the opening degree of the water inlet valve is greater than the opening degree of the water outlet valve.

[0026] The cooling water level h after the water inlet valve is opened is monitored in real time, and if h≧h 01 , the stirring device is started.

[0027] Further optionally, when the determination result is h 02 >h≧h 01 , the stirring device is controlled to rotate at a low speed in a forward and reverse direction.

[0028] When the determination result is h≧h 02 , the stirring device is controlled to rotate at a high speed in one direction.

[0029] Further optionally, if Δδ<Δδ 01 , the water inlet valve is opened to the maximum, and the opening degree of the water outlet valve is adjusted in real time according to h and Δδ.

[0030] Further optionally, if Δδ 03 , the water inlet valve is opened to the maximum, and the opening degree of the water outlet valve is adjusted in real time according to h and Δδ.> delta delta >= delta delta 02 The stirring device and the water inlet valve and the water outlet valve can not be adjusted.

[0031] If delta delta >= delta delta 03 Increase the water inlet amount of the water inlet valve to increase the cooling water level h.

[0032] As another example, further optionally, controlling the water inlet valve and the water outlet valve according to the delta 1, delta 2, and h includes:

[0033] S1: After the intelligent cooling and dehumidifying module receives a cooling and dehumidifying instruction, the water inlet valve of the intelligent cooling and dehumidifying module is controlled to open to start water inlet into the shell;

[0034] S2: After the water inlet valve is opened for a preset time t1, the stirring device is controlled to start, and the stirring device agitates the cooling water at a rotation speed n1;

[0035] S3: The cooling water level is monitored, and when the cooling water level does not cover the stirring device, the water inlet valve is closed, and the stirring device is controlled to agitate the cooling water at a rotation speed n2, and n2>n1;

[0036] S4: The water inlet temperature delta 1 and the water outlet temperature delta 2 are detected in real time, and when the value of delta 2-delta 1 meets delta delta 03 > delta delta >= delta delta 02 The stirring device stops rotating, the water outlet valve of the intelligent cooling and dehumidifying module is opened, and the cooling water is discharged from the shell;

[0037] S5: After the cooling water is completely discharged, the water inlet valve is opened to inject water into the intelligent condensing water inlet device, and the cooling and dehumidifying work is circularly performed.

[0038] The technical solution of the present application can include the following beneficial effects:

[0039] 1. The present application proposes that the traditional drying air duct condensing system is additionally provided with an intelligent cooling and dehumidifying module to replace the existing "rear air duct connected with a water faucet to spray cooling and heat exchange" condensing means, which can greatly improve the condensing efficiency to improve the drying efficiency, reduce the water consumption during the clothes drying process, and reduce the drying time of the whole machine. The product performance is improved, the industry pain point of long drying time is solved, and the user experience is greatly improved.

[0040] 2. The intelligent cooling and dehumidifying module proposed in the present application is additionally provided with a condensing water inlet and a condensing water outlet, and temperature sensors are arranged at the condensing water inlet position and the condensing water outlet. The heat exchange efficiency of the condensing water is determined by the temperature difference of the temperature sensors at the condensing water inlet and outlet positions, which is simple, intuitive, and controllable.

[0041] 3. The intelligent cooling and dehumidifying module proposed in the present application is additionally provided with a stirring device in the module, which not only increases the heat exchange means, but also makes the condensing water heat exchange uniform. Attached Figure Description

[0042] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0043] Figure 1 This is a schematic diagram of the heat exchange process of a washing machine according to an exemplary embodiment.

[0044] Figure 2 This is a three-dimensional diagram of a heat exchange module according to an exemplary embodiment.

[0045] Figure 3 This is a top view of a heat exchange module according to an exemplary embodiment.

[0046] Figure 4 This is illustrated according to an exemplary embodiment. Figure 3 BB section view.

[0047] Figure 5 This is a flowchart illustrating a specific embodiment.

[0048] in:

[0049] 100. Washing and drying equipment; 200. Drying air duct; 300. Centrifugal fan; 400. Intelligent cooling and dehumidification module.

[0050] 1. Baffle plate, 2. Shell-side space, 3. Heat exchange chamber, 4. Stirring device, 5. Shell, 6. Water inlet pipe, 7. Water outlet pipe, 8. First temperature sensor, 9. Second temperature sensor, 10. Heat exchange space. Detailed Implementation

[0051] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0052] The technical solution of this embodiment will be described in detail below with reference to the accompanying drawings. In the absence of conflict, the following implementation methods and embodiments can be combined with each other.

[0053] Example 1

[0054] According to an exemplary embodiment, such as Figures 1-5As shown, the present embodiment proposes a washing and drying equipment, which comprises an inner drum, an outer drum, and a drying air duct 200 connected between the air inlet and the air outlet of the outer drum, and the inner drum, the outer drum, and the drying air duct 200 form a drying circulation system.

[0055] The drying air duct 200 is provided with an intelligent cooling and dehumidifying module 400 and a fan 300 for providing circulation flow power for the drying circulation system, which is preferably a centrifugal fan. Specifically, the wet and hot air that has exchanged heat with the clothes in the inner drum first passes through the intelligent cooling and dehumidifying module 400 and then enters the fan circulation after passing through the outer drum and the drying air duct.

[0056] The intelligent cooling and dehumidifying module 400 comprises a shell 5, and a plurality of heat exchange cavities 3 are arranged in the shell 5. The wet and hot air flows in the heat exchange cavities 3. Preferably, the shell 5 can be a circumferentially closed shell, and an upper cover and a lower cover are sealingly coupled to the upper end and the lower end of the shell. The fan 300 draws the wet and hot air flow, so that the wet and hot air passes through the heat exchange cavities 3, and the interwall between the heat exchange cavities 3 and the shell space 2 is dehumidified and exchanged. The heat exchange cavities 3 are a plurality of ventilation cavities for the wet and hot air flow longitudinally through the shell 5. The openings of the upper and lower ends of the ventilation cavities are formed on the upper cover and the lower cover, and the plurality of ventilation cavities can be arranged in the shell space 2 in a close or spaced manner. Further, the plurality of ventilation cavities can be arranged in the shell space 2 in an ordered or disordered manner in the close or spaced manner. In the ordered manner, the plurality of ventilation cavities are arranged on both sides of the shell space 2, and a channel for the flow of cooling water is formed in the middle, so as to facilitate the flow of cooling water. In the disordered manner, the plurality of ventilation cavities are irregularly arranged in the shell space 2 (not shown in the figure), and a plurality of ventilation cavities are independently arranged to form more interwalls between the shell space 2 and the heat exchange cavities 3, so as to improve the dehumidification and heat exchange effect. Further, as shown in Figure 2 and Figure 3 As shown, the ventilation cavities can be arranged with four large spaced ventilation cavities and two small ventilation cavities. The small ventilation cavities can be arranged on one side of a large ventilation cavity according to the remaining space of the shell space 2.

[0057] The shell space 2 formed between the heat exchange cavities 3 and the inner wall of the shell 5 is used to contain cooling water, and the outer wall of the shell is provided with a water inlet pipe 6 and a water outlet pipe 7 that communicate with the shell space 2. The water inlet pipe 6 and the water outlet pipe 7 are arranged at two positions of the shell. Preferably, the water inlet pipe 6 is arranged on the upper cover, and the water outlet pipe 7 is arranged on the lower cover, and both of them communicate with the shell space 2 to ensure normal liquid supply and discharge. In an embodiment, the water inlet pipe 6 and the water outlet pipe 7 are formed on the upper end and the lower end of the shell 5 and are located on different axes, so as to stagger the positions of the water inlet and the water outlet, so as to ensure that the cooling water can flow from one end to the other end after entering the shell space 2.

[0058] The shell side space 2 is provided with a stirring device 4, preferably a rotating device with an impeller, provided with an alternating current motor, which can realize forward and reverse rotation at different speeds, for promoting the heat exchange between the cooling water and the heat exchange cavity 3. The number of stirring devices 4 provided in the shell side space 2 is at least one, so as to ensure that the stirring device 4 can drive the cooling water to flow in the shell side space 2. Preferably, the shell side space 2 is also provided with a liquid level sensor. The liquid level sensor detects the liquid level of the cooling water in the shell side space 2, especially whether the water level exceeds the stirring device 4 and whether the shell side space 2 is full. The stirring device 4 can be controlled to adjust the rotating speed and the rotating direction according to the liquid level detected by the liquid level sensor. Specifically, the rotating speed can be controlled to be different according to the change of the liquid level of the condensing device. When the liquid level device is lower than the impeller stirring device, the motor drives the stirring device to rotate at a low speed, and the motor drives the stirring device impeller to realize forward and reverse rotation. When the liquid level is higher than the impeller stirring device, the stirring device impeller rotates at a high speed under the drive of the motor, increasing the flow of the water flow to increase the heat exchange with the high humidity and heat air.

[0059] The water inlet pipe 6 is provided with a water inlet valve and a first temperature sensor 8, and the water outlet pipe 7 is provided with a water outlet valve and a second temperature sensor 9. The water inlet valve and the water outlet valve can be controlled to adjust the valve opening according to the inlet water temperature detected by the first temperature sensor 8 and the outlet water temperature detected by the second temperature sensor 9.

[0060] Preferably, the shell side space 2 is provided with a plurality of partitions 1, and the plurality of partitions 1 divide the shell side space 2 into a plurality of heat exchange spaces 10. Each heat exchange space 10 is provided with a stirring device 4. The number of stirring devices 4 in each heat exchange space 10 is at least one, so as to ensure that the stirring device 4 can drive the cooling water to flow in the heat exchange space 10.

[0061] Correspondingly, the heat exchange cavity 3 can be divided into a plurality of heat exchange units, and the plurality of heat exchange units are one-to-one corresponding to the plurality of heat exchange spaces 10.

[0062] And the partitions 1 of every two adjacent heat exchange spaces form a communication hole or a communication channel between the partitions 1, so that the two adjacent heat exchange spaces 10 are communicated, and the cooling water in the previous heat exchange space 10 can flow into the next heat exchange space 10. Preferably, the closer the communication hole / communication channel is to the position of the water outlet pipe 7, the lower the water outlet position is, the smaller the volume of the heat exchange space 1 is, and the smaller the flow area of the heat exchange cavity 3 is. Further preferably, the plurality of heat exchange spaces 1 are sequentially arranged from the water inlet pipe 6 side to the water outlet pipe 7 side, and the partitions 1 and the communication hole / communication channel are arranged to ensure that the cooling water in the previous heat exchange space flows into the next cavity after reaching a predetermined water level. Therefore, the partitions are used to store water in each heat exchange space with a predetermined volume and water level difference, and the corresponding heat exchange is realized, which is beneficial to improve the heat exchange effect of the cooling water and the humid and hot air, and save energy and water.

[0063] In execution, the heat exchange space 10 closest to the water inlet pipe 6 (referred to as the first heat exchange space) first receives the cooling water injected by the water inlet pipe 6; the cooling water in the heat exchange space 10 closest to the water outlet pipe 7 (referred to as the last heat exchange space) is finally discharged into the outlet pipeline of the washing and drying equipment by the water outlet pipe 7; the cooling water in the previous heat exchange space 10 flows into the next heat exchange space after reaching the preset water level. In this way, the cooling water in the first heat exchange space has the lowest temperature, the largest volume and the highest water level, and the cooling water in the last heat exchange space has the highest temperature, the smallest volume and the lowest water level, so that the cooling water in the entire intelligent cooling and dehumidifying module 400 forms a temperature gradient in multiple heat exchange spaces 10. Correspondingly, the flow area of the heat exchange cavity corresponding to the heat exchange space is also adjusted adaptively. The larger the heat exchange space, the larger the flow area of the heat exchange cavity, so that the best heat exchange efficiency is obtained, and the humid and hot airflow can contact different temperatures and different temperature barriers to dehumidify and exchange heat when flowing, so that the entire heat exchange efficiency is high and the effect is stable.

[0064] Further preferably, when the cooling water temperature in the shell side space 2 cannot meet the cooling and dehumidifying needs and the cooling water needs to be discharged from the shell 5, the cooling water in the heat exchange spaces can be sequentially discharged from the water outlet pipe 7 to the water inlet pipe 6. That is, the cooling water in the heat exchange space with the highest temperature is discharged first, and if the cooling water with the highest temperature is not enough to ensure the cooling and dehumidifying effect, the cooling water in the second last heat exchange space is discharged, and the cooling water is sequentially discharged in reverse order until the temperature of the cooling water can meet the cooling and dehumidifying needs. Of course, in order to ensure the smooth progress of dehumidification and cooling, the water inlet valve of the water inlet pipe can also be opened to supplement the amount of discharged cooling water when the cooling water flows sequentially from the first cooling space to each cooling space and finally reaches the last cooling space.

[0065] It needs to be further explained that:

[0066] In one embodiment, the heat exchange space 10 can be a single one, and at this time, the partition plate 1 and the communication hole / communication channel are not required.

[0067] In another embodiment, the heat exchange space 10 can be even, and the odd number of partition plates 1 separate the shell side space 2. For example, when two heat exchange spaces 10 are separated by one partition plate 1, at this time, the water inlet pipe 6 and the water outlet pipe 7 are preferably arranged in the same direction, and the communication hole / communication channel is arranged away from the water inlet pipe 6 and the water outlet pipe 7 to ensure that the liquid can flow through the entire heat exchange space 10.

[0068] In still another embodiment, the heat exchange spaces 10 can be odd in number, separated by even number of partitions 1 to divide the shell side space 2. For example, when divided into three heat exchange spaces 10 by two partitions 1, the water inlet pipe 6 and the water outlet pipe 7 are preferably arranged at the two ends of the shell assembly, and the communication holes / communication channels are arranged away from the water inlet pipe 6 and the water outlet pipe 7 to ensure that the liquid can flow through the entire heat exchange space 10.

[0069] Preferably, the washing and drying apparatus of the present application is further provided with an electric heating device to provide hot air for drying.

[0070] The operation process of the whole machine is as follows: when the drying program is started, the air in the drum is heated and circulated under the action of the electric heating and the centrifugal fan. After the temperature of the air in the drum rises to the set value, the intelligent cooling and dehumidifying module 400 starts to work. On the one hand, the hot air heated by the electric heating exchanges heat with the clothes in the drum, and on the other hand, the hot air exchanges heat with the moisture in the clothes to produce high-temperature and high-humidity hot air, which is introduced into the intelligent cooling and dehumidifying module 400 arranged on the condensing air duct under the power of the fan. When the high-temperature and high-humidity hot air meets the intelligent cooling and dehumidifying module 400, the heat exchange is converted into dry and cold air, which is introduced into the drying air duct under the power of the fan to start the next cycle.

[0071] Embodiment 2

[0072] This embodiment takes the above-mentioned cooling and dehumidifying module embodiment 1 as an example to provide an implementation example of a drying treatment method of the intelligent cooling and dehumidifying module 400 in the drying operation.

[0073] The implementation example as a whole comprises:

[0074] In the drying operation, the cooling water inlet temperature δ1, the cooling water outlet temperature δ2 and the cooling water level h of the shell side space 2 are obtained in real time;

[0075] The water inlet valve and the water outlet valve are controlled according to δ1, δ2 and h.

[0076] Specifically, the control of the water inlet valve and the water outlet valve according to δ1, δ2 and h comprises:

[0077] The difference Δδ between δ2 and δ1 is calculated, and Δδ is compared with Δδ 01 and Δδ 02 ; wherein Δδ 01 is a first preset value, which is preferably a minimum threshold value; and Δδ 02 is a second preset value, which is preferably a maximum threshold value.

[0078] (1) If Δδ 01 ≦ Δδ < Δδ 02 , it is determined whether the cooling water level h is greater than or equal to a preset value h 01 .

[0079] If the result of the judgment is h≧h 01 , the stirring device 4 is started. Wherein, h 01 is the first preset cooling water level, and is also the minimum threshold of the cooling water level for starting the stirring device 4, preferably the minimum water level of the cooling water reaching the lowest position of the stirring device 4; 01

[0080] If the result of the judgment is h<h 01 , the water inlet valve is opened alone or the water inlet valve and the water outlet valve are opened simultaneously, and the opening degree of the water inlet valve is greater than that of the water outlet valve; the cooling water amount is increased and the cooling water with lower temperature is supplemented in large quantity, so as to reduce the temperature of the shell side cooling water, make the temperature difference of the cooling water change small, and accelerate the cooling water level to reach the first preset cooling water level quickly. At the same time, the cooling water level h after opening the water inlet valve is monitored in real time, and if h≧h 01 , the stirring device 4 is started;

[0081] When the result of the judgment is h 02 >h≧h 01 , the stirring device 4 is controlled to rotate at low speed and in positive and negative directions to ensure that the condensate water flow is fully flowed, wherein h 02 is the second preset cooling water level, which is the highest threshold for the stirring device 4 to rotate at low speed and in positive and negative directions;

[0082] When the result of the judgment is h≧h 02 , the stirring device 4 is controlled to rotate at high speed and in one direction.

[0083] (2) If Δδ<Δδ 01 , the water inlet valve is opened to the maximum, and the opening degree of the water outlet valve is adjusted in real time according to h and Δδ.

[0084] If Δδ 03 >Δδ≧Δδ 02 , the stirring device 4 and the water inlet valve and the water outlet valve are not adjusted;

[0085] If Δδ≧Δδ 03 , the water inlet amount of the water inlet valve is increased to increase the cooling water level h, wherein Δδ 03 is the third preset value.

[0086] Embodiment 3

[0087] This embodiment takes the above-mentioned cooling and dehumidifying module embodiment 1 as an example to provide an implementation example of a drying treatment method of an intelligent cooling and dehumidifying module 400 after the intelligent cooling and dehumidifying module receives a cooling and dehumidifying instruction.

[0088] This embodiment also includes:

[0089] ​In the drying operation, the cooling water inlet temperature δ1, the cooling water outlet temperature δ2 and the cooling water level h in the shell space 2 are obtained in real time;

[0090] According to δ1, δ2 and h, the water inlet valve and the water outlet valve are controlled.

[0091] Specifically, the embodiment controls the water inlet valve and the water outlet valve according to δ1, δ2 and h, including:

[0092] S1: After the intelligent cooling and dehumidifying module receives a cooling and dehumidifying instruction, the water inlet valve of the intelligent cooling and dehumidifying module is controlled to open to start water feeding into the shell 5, and at this time, the water outlet valve of the water outlet pipe is closed;

[0093] S2: When the water inlet valve is opened for a preset time t1, the stirring device 4 is started, and the stirring device 4 is controlled to stir the cooling water at a rotating speed n1 in forward and reverse directions;

[0094] In the process of controlling the water inlet valve of the intelligent cooling and dehumidifying module to open to start water feeding into the shell 5, the water inlet temperature δ1 is detected by the intelligent condensing module water inlet temperature sensor 4, and the time for the cooling water flow to reach the minimum water level for starting the stirring device is calculated according to the flow of the water inlet valve, that is, the preset time t1.

[0095] S3: When the water inlet valve is opened for a preset time t2, the water inlet valve is closed, the stirring device 4 is controlled to stir the cooling water at a rotating speed n2 in forward and reverse directions, and n2>n1;

[0096] Specifically, the time for the cooling water to pass through the stirring device can be calculated according to the flow of the water inlet valve, of course, a water level meter can also be used to monitor whether the preset water level for passing through the stirring device is reached, or both methods are used together.

[0097] S4: The water inlet temperature δ1 and the water outlet temperature δ2 are detected in real time, and when the value of δ2-δ1 satisfies Δδ 03 >Δδ≧Δδ 02 , the stirring device 4 is controlled to stop rotating, the water outlet valve of the intelligent cooling and dehumidifying module is opened, and the cooling water is discharged from the shell 5;

[0098] S5: After the cooling water is completely discharged, the water inlet valve is opened to feed water into the intelligent condensing water feeding device to perform the next cooling and dehumidifying work.

[0099] It should be noted that the embodiment method does not require all the features of the washing and drying equipment described in Embodiment 1, and in general, the following structural features can be achieved:

[0100] The dryer comprises an inner cylinder, an outer cylinder and a drying air duct connected between the air inlet and the air outlet of the outer cylinder, the inner cylinder, the outer cylinder and the drying air duct form a drying circulation system; an intelligent cooling and dehumidifying module and a fan providing circulating flow power for the drying circulation system are arranged on the drying air duct; the intelligent cooling and dehumidifying module comprises a shell, a plurality of heat exchange cavities are arranged in the shell, the heat exchange cavities are internally flowed with hot and humid air, a shell side space formed between the heat exchange cavities and the inner wall of the shell is used for containing cooling water, and water inlet pipes and water outlet pipes communicating with the shell side space are arranged on the outer wall of the shell.

[0101] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the claims and their equivalents. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application indicated by the following claims.

[0102] It is to be understood that the application is not limited to the precise structures herein described and illustrated, and that various modifications and changes can be made without departing from its scope. The scope of the application is limited only by the claims appended hereto.

[0103] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the claims and their equivalents. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application indicated by the following claims.

[0104] It is to be understood that the application is not limited to the precise structures herein described and illustrated, and that various modifications and changes can be made without departing from its scope. The scope of the application is limited only by the claims appended hereto.

Claims

1. A washing and drying device, characterized in that, It includes an inner cylinder, an outer cylinder, and a drying air duct connecting the air inlet and air outlet of the outer cylinder. The inner cylinder, outer cylinder, and drying air duct constitute a drying circulation system. The drying air duct is equipped with an intelligent cooling and dehumidification module and a fan that provides circulation power for the drying circulation system. The intelligent cooling and dehumidification module includes a housing with multiple heat exchange chambers inside. Moist and hot air flows inside the heat exchange chambers. The shell-side space formed between the heat exchange chambers and the inner wall of the housing is used to contain cooling water. The outer wall of the housing is provided with an inlet pipe and an outlet pipe that connect to the shell-side space. The inlet pipe is provided with an inlet valve and a first temperature sensor. The outlet pipe is provided with an outlet valve and a second temperature sensor. The shell-side space is provided with a stirring device to promote heat exchange between the cooling water and the heat exchange chambers. The shell-side space is also equipped with a liquid level sensor; The inlet valve and outlet valve can be controlled to adjust their opening degree according to the inlet water temperature detected by the first temperature sensor and the outlet water temperature detected by the second temperature sensor. The stirring device can be controlled to adjust its rotation speed according to the liquid level in the shell-side space detected by the liquid level sensor.

2. The washing and drying equipment according to claim 1, characterized in that, The stirring device is a rotating device with an impeller and is equipped with an AC motor, which can achieve forward and reverse rotation at different speeds.

3. The washing and drying equipment according to claim 1 or 2, characterized in that, The shell-side space is provided with multiple partitions, which divide the shell-side space into multiple heat exchange spaces, and each heat exchange space is provided with a stirring device. The heat exchange cavity is divided into multiple heat exchange units, and the multiple heat exchange units are arranged one-to-one with the multiple heat exchange spaces. Each pair of adjacent heat exchange spaces has a connecting hole formed in the partition or a connecting channel formed between the partitions. The closer the connecting hole / connecting channel is to the water outlet pipe, the lower the water outlet position, the smaller the volume of the heat exchange space, and the smaller the flow area of ​​the corresponding heat exchange cavity.

4. The washing and drying equipment according to claim 3, characterized in that, When the cooling water temperature in the shell-side space is insufficient to meet the cooling and dehumidification requirements and the cooling water is discharged from the shell, the cooling water in the heat exchange space is discharged sequentially from the outlet pipe side to the inlet pipe side.

5. A drying control method for implementing the washing and drying equipment according to any one of claims 1-2, the washing and drying equipment comprising an inner cylinder, an outer cylinder, and a drying air duct connected between the air inlet and air outlet of the outer cylinder, wherein the inner cylinder, the outer cylinder, and the drying air duct constitute a drying circulation system; characterized in that, The drying duct is equipped with an intelligent cooling and dehumidification module and a fan that provides circulating power for the drying circulation system. The intelligent cooling and dehumidification module includes a housing with multiple heat exchange chambers inside. Moist and hot air flows within each heat exchange chamber. The shell-side space formed between the heat exchange chambers and the inner wall of the housing is used to contain cooling water. An inlet pipe and an outlet pipe communicating with the shell-side space are provided on the outer wall of the housing. The drying control method includes: During the drying operation, the cooling water inlet temperature δ1, cooling water outlet temperature δ2, and cooling water level h in the shell side space are acquired in real time. The inlet valve and outlet valve are controlled according to δ1, δ2, and h.

6. The drying control method for a washing and drying equipment as described in claim 5, characterized in that: The control of the inlet valve and outlet valve based on δ1, δ2, and h includes: Calculate the difference Δδ between δ2 and δ1 and compare Δδ with the first preset value Δδ. 01 The second preset value Δδ 02 Compare; If Δδ 01 ≦Δδ<Δδ 02 Determine whether h is greater than or equal to h 01 , where Δδ 01 The first preset value is Δδ 02 h is the second preset value. 01 The preset first cooling water level; If the judgment result is h≧h 01 Start the stirring device.

7. The drying control method for a washing and drying equipment as described in claim 6, characterized in that: The drying control method further includes: If the judgment result is h <h 01 Open the inlet valve alone or open the inlet valve and outlet valve simultaneously, making the opening of the inlet valve greater than the opening of the outlet valve. Real-time monitoring of the cooling water level h after opening the inlet valve; if h ≥ h 01 Start the stirring device.

8. The drying control method for a washing and drying equipment as described in claim 6, characterized in that: When the judgment result is h 02 >h≧h 01 The stirring device is controlled to rotate in both forward and reverse directions at a low speed; When the judgment result h≧h 02 The stirring device is controlled to rotate at high speed in one direction, wherein h 02 This is the preset second cooling water level.

9. The drying control method for a washing and drying equipment as described in claim 6, characterized in that: If Δδ < Δδ 01 Open the inlet valve to its maximum and adjust the outlet valve opening in real time according to h and Δδ.

10. The drying control method for a washing and drying equipment as described in claim 6, characterized in that: If Δδ 03 >Δδ≧Δδ 02 The stirring device, inlet valve, and outlet valve do not need to be adjusted. If Δδ≧Δδ 03 Increase the water inlet flow rate through the inlet valve and raise the cooling water level h; Where, Δδ 03 This is the third preset value.

11. The drying control method for the washing and drying equipment according to claim 5, characterized in that, Controlling the inlet valve and outlet valve according to δ1, δ2, and h includes: S1: After receiving the cooling and dehumidification command, the intelligent cooling and dehumidification module controls the water inlet valve of the intelligent cooling and dehumidification module to open and start water entering the housing; S2: When the water inlet valve is opened for a preset time t1, the stirring device starts and stirs the cooling water in both forward and reverse directions at a speed n1; S3: When the inlet valve is opened for a preset time t2, the inlet valve is closed, and the stirring device is controlled to stir the cooling water in both directions at a speed of n2, where n2 > n1 and t2 > t1. S4: Real-time monitoring of inlet water temperature δ1 and outlet water temperature δ2; when the value of δ2-δ1 satisfies Δδ 03 >Δδ≧Δδ 02 When the agitator stops rotating, the outlet valve of the intelligent cooling and dehumidification module opens, discharging cooling water out of the casing; the difference between δ2 and δ1, Δδ, Δδ 01 The first preset value is Δδ 02 The second preset value, Δδ 03 This is the third preset value; S5: After the cooling water is completely drained, continue with step S1 to open the water inlet valve and inject water into the intelligent condensate water inlet device to circulate and perform cooling and dehumidification.

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