WO2018024228A1

WO2018024228A1 - Laundry dryer and control method thereof

Info

Publication number: WO2018024228A1
Application number: PCT/CN2017/095785
Authority: WO
Inventors: 宋华诚; 许升; 田书君; 单世强
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2016-08-03
Filing date: 2017-08-03
Publication date: 2018-02-08
Also published as: CN107687079B; CN107687079A

Abstract

Disclosed are a laundry dryer and a control method thereof. The laundry dryer is provided with a steam generator (8), and a steam outlet of the steam generator (8) is in communication with an outer drum (1) and with a sprayer (15) disposed above an evaporator (7) respectively via a pipeline, such that steam can flow to the outer drum (1) and/or the evaporator (7) in a controllable manner. At the beginning of the operation of the laundry dryer, all of the steam generated by the steam generator (8) flows to the evaporator (7) of the laundry dryer and transfers heat to the evaporator (7), so that the evaporator (7) is heated and then releases the heat via a condenser (4) under the action of a compressor (5), thereby increasing the overall operation efficiency of a heat pump system and thus the rate of temperature increase in the laundry dryer. During the normal steam treatment of laundry by the laundry dryer, unvaporized water automatically flows into the sprayer (15) disposed above the evaporator (7) under the action of gravity, so as to be sprayed to the evaporator (7) and remove lints attached to the evaporator (7) and to sterilize the evaporator (7) and surrounding parts of same. Moreover, the laundry dryer is simple in structure, has a significant effect and is suitable for widespread use.

Description

Drying machine and control method

Technical field

The invention relates to a clothes dryer in the field of washing, in particular to a dryer for rapid temperature rise, and to a control method for the above dryer.

Background technique

The existing clothes dryer is a machine that dries the washed clothes or directly integrates the washing and drying functions.

For example, the Chinese patent of the application number 201410406212.X describes a heat pump system, a washing and drying machine and a clothes dryer. The heat pump system comprises an evaporator, a compressor, a condenser and a refrigerant regulation subsystem. The evaporator, the compressor, the condenser and the refrigerant regulation subsystem are sequentially connected through a pipeline to form a refrigerant circulation loop, and the refrigerant regulation subsystem comprises a parallel connection. a first branch and a second branch between the evaporator and the condenser; the first branch includes a first throttling device connected to the evaporator inlet port and the first throttling device and the condenser a liquid storage device; a second throttle device is connected in series on the second branch.

The existing washing machine has realized the steam washing function. Referring to this technology, a steam generator is added to the dryer to make the dryer also have a steam washing function.

However, the above-mentioned clothes dryer has a slower temperature rise rate at the beginning of the work, which in turn leads to a lower drying rate of the clothes dryer and higher starting energy consumption.

In view of this, the present invention has been specifically proposed.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a clothes dryer to achieve the purpose of rapid temperature rise of the clothes dryer; another purpose is to achieve spray cleaning of the evaporator in the clothes dryer. The purpose of the wire.

In order to solve the above technical problems, the basic idea of adopting the technical solution of the present invention is:

A clothes dryer having a steam generator on a dryer, and an air outlet of the steam generator is respectively connected to the outer cylinder through the pipeline The showers disposed above the evaporator are in communication to allow controlled flow of steam to the outer cylinder and/or evaporator.

Further, the air outlet of the steam generator is in communication with one end of the first pipe, and the other end of the first pipe is respectively connected with the first branch pipe and the second branch pipe, the first branch pipe is in communication with the outer pipe, and the second branch pipe and the shower pipe are connected Connected.

Further, an angle between the first branch pipe and the first pipe is greater than an angle between the second pipe and the first pipe; preferably, the first pipe is inclined or parallel with respect to the horizontal surface; the second pipe is opposite to the horizontal surface. More preferably, the angle β between the first pipe and the first pipe is an obtuse angle greater than 90 degrees, and the angle α between the first pipe and the second pipe is an acute angle less than 90 degrees; further preferably, The angle β between a pipe and the first pipe is 180 degrees.

Further, one end of the first pipe is connected to the air outlet of the steam generator, and the other end is respectively connected to the first branch pipe and the second branch pipe via a three-way, the three-way includes an intake section, a first outlet section and a second The outlet section, the first section of the intake section, the first outlet section and the second outlet section are connected to the same place, and the other end is correspondingly connected with the first pipe, the first branch pipe and the second branch pipe respectively; preferably, the three The axial angle β between the first air outlet section and the air inlet section is an obtuse angle greater than 90 degrees, and the axial angle α of the second air outlet section and the intake section is an acute angle less than 90 degrees; more preferably, the first air outlet section It is coaxially arranged with the intake section so that the angle β is 180 degrees.

Further, the first branch pipe and the second branch pipe are respectively provided with a first valve and a second valve that control the opening and closing of the branch pipe.

Further, the first branch pipe is provided with a first valve for controlling the opening and closing of the branch pipe, and the second pipe is not provided with a valve for controlling the opening and closing of the branch pipe.

Another object of the present invention is to provide a control method for a clothes dryer according to any of the above, in order to achieve control of the flow direction of the steam, to achieve rapid temperature rise of the clothes dryer, and to spray the wire cleaning of the evaporator in the clothes dryer. the goal of.

In order to achieve the above object, the technical solution adopted by the present invention is as follows:

A control method for a clothes dryer, in the initial stage of the operation of the dryer, all the steam generated by the steam generator flows to the evaporator of the dryer; during the normal steam treatment of the clothes, most of the steam generated by the steam generator flows into the dry The outer tub of the clothes machine, the unvaporized water will flow through the sprayer to the evaporator of the dryer under the action of gravity.

Further, in the initial stage of the operation of the dryer, the first valve is closed and the second valve is opened, so that the air outlet of the steam generator is only connected to the sprayer disposed above the evaporator, and all of the steam flows to the evaporator through the shower.

Further, during the normal steam treatment of the laundry, the first valve and the second valve are simultaneously opened, and the air outlet of the steam generator is connected to the outer cylinder and the shower device disposed above the evaporator, respectively, and the steam generator flows out. Big Part of the steam flows into the outer cylinder through the first branch pipe having a larger angle with the first pipe axis, and a small portion of the steam and unvaporized water flowing out of the steam generator are evaporated to the second branch pipe having a smaller angle with the first pipe axis. Device.

Further, during the normal steam treatment process of the clothes dryer, when the door body at the clothes outlet of the clothes dryer is opened, the first valve is closed and the second valve is opened, so that the air outlet of the steam generator is only disposed at The sprinklers above the evaporator are connected, and the steam and unvaporized water all pass to the evaporator.

Further, after the dryer performs normal steam treatment on the laundry, the heating device in the steam generator stops working, and the water is continuously supplied to the steam generator for a certain time to carry out the scale and residual impurities in the steam generator. rinse.

Further, the flushing water in the steam generator flows to the evaporator through the shower, and the residual scraps on the upper side of the evaporator are cleaned.

Further, when the water is flushed into the steam generator, the first valve is closed and the second valve is opened, so that the flushing water in the steam generator flows to the evaporator through the shower and is connected to the drying air path of the evaporator. The condensate drain pipe is arranged outside.

After adopting the above technical solution, the present invention has the following beneficial effects as compared with the prior art:

1. In the initial stage of the dryer operation, the first valve is closed and the second valve is opened, so that all the steam generated by the steam generator flows to the evaporator of the dryer, so that the heat of the steam is transferred to the evaporator, and the evaporator absorbs heat. The heat is released through the condenser under the action of the compressor, which accelerates the overall working efficiency of the heat pump system, improves the heating rate of the dryer, accelerates the drying rate of the dryer, and reduces the startup energy of the dryer. Consumption.

2. During the normal steam treatment of the clothes dryer, the first valve and the second valve are simultaneously opened, so that most of the steam flows into the outer cylinder, and a small part of the steam and the unvaporized water are automatically flowed under the action of gravity. The evaporator is sprayed in a shower above the evaporator to remove the lint attached to the evaporator and sterilize the evaporator and its surrounding components.

3. During the normal steam treatment of the clothes dryer, when the door body at the clothes outlet of the clothes dryer is opened, the first valve is closed, the second valve is opened, the steam is led to the evaporator and the heat is conducted. On the fins, the residual heat in the steam generator after the door is opened prevents the steam from continuing or suddenly ejecting, thereby avoiding the occurrence of an operator's burn accident.

4. The heating device in the steam generator stops working, and the water in the steam generator is continuously washed to wash the scale and residual impurities generated by the steam generator, and the flushing water can spray the evaporator to clear the evaporator. Residual The attached wire scraps are used to clean the evaporator.

At the same time, the invention has the advantages of simple structure, simple method and remarkable effect, and is suitable for popularization and use.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. It is apparent that the drawings in the following description are only some embodiments, and other drawings may be obtained from those skilled in the art without departing from the drawings. In the drawing:

1 is a schematic structural view of a clothes dryer in an embodiment of the present invention;

2 is a schematic structural view showing a three-way connection manner on a pipeline of a clothes dryer according to an embodiment of the present invention;

The names of the components are as follows:

1—outer tube, 2—drying air path, 3-fan, 4-condenser, 5-compressor, 6-throttle element, 7-evaporator, 8-steam generator, 9-inlet pipe, 10- First tube, 11 - second tube, 12 - filter, 13 - second valve, 14 - first pipe, 15-spray, 16 - first valve, 17 - three-way, 18 - door body,

It is to be understood that the drawings and the written description are not intended to limit the scope of the present invention in any way.

detailed description

The present invention is described in the following detailed description of the embodiments of the present invention, and is not intended to limit the scope of the present invention.

As shown in FIG. 1 , in the embodiment of the present invention, a clothes dryer is provided. The clothes dryer includes an outer tube 1 for accommodating clothes, and an openable and closable clothes are provided at the clothes insertion opening on the outer tube 1. The door body 18 that is put in/out. The outer cylinder 1 is provided with a drying air passage 2, and both ends of the drying air passage 2 communicate with the upper and lower portions of the outer cylinder 1, respectively, so that the outer cylinder 1 and the drying air passage 2 constitute a circulation air passage. A fan 3 is disposed in the drying air passage 2 to form a circulating airflow in the circulating air passage. Preferably, the drying air duct 2 is provided with a filter screen 12 for filtering the wire dust or the like contained in the circulating air current flowing through.

In the embodiment of the present invention, the dryer is further provided with a heat pump system including a compressor 5, an evaporator 7, a throttle element 6 and a condenser 4 which are connected in series at the beginning and the end to form a circulating flow for condensing flow. Road. The evaporator 7 and the condenser 4 are disposed in the drying air passage 2 to respectively perform heat absorption and heat treatment on the flowing airflow to realize profit The purpose of drying the clothes with a circulating air stream.

The clothes dryer is further provided with a steam generator 8, and the air outlet of the steam generator 8 is respectively connected to the outer cylinder 1 and the shower 15 disposed above the evaporator 7 via a pipeline, and the pipeline is provided with a control device and/or Or the construction of the pipeline itself has the function of controlling the direction of steam flow. Under the action of the control device and/or the pipeline, in the initial stage of the operation of the dryer, all the steam generated by the steam generator 8 is led to the evaporator 7; during the normal steam treatment of the clothes by the dryer, when drying When the door 18 at the laundry entrance is closed, most of the steam generated by the steam generator 8 flows into the outer cylinder 1, and a small portion of the steam and unvaporized water pass to the evaporator 7; the dryer performs normal steam treatment on the laundry. During the process, when the door body 18 at the clothes outlet of the clothes dryer is opened, the steam generated by the steam generator 8 and the unvaporized water all pass to the evaporator 7.

Through the above apparatus and method, the steam generated by the steam generator 8 is controllably flowed to the outer cylinder 1 to perform steam washing, disinfection, etc. treatment on the inner laundry thereof, or to the evaporator 7 to cause the evaporator 7 to absorb heat after the compressor The heat is released through the condenser to accelerate the overall working efficiency of the heat pump system, thereby increasing the heating rate of the dryer, and simultaneously removing the dust attached to the evaporator 7 and sterilizing the evaporator 7 and its surrounding components. In addition, the heat transfer of the steam to the evaporator 7 reduces the total amount of steam in the outer cylinder, avoids the occurrence of steam ejection after the door body is opened, thereby avoiding the steam ejecting and residual heat damage to the user after the user opens the door. occur.

Embodiment 1

In this embodiment, the steam generator 8 of the clothes dryer may be any existing steam generator having the following structure: a body is formed with a volume chamber, and the chamber is provided with water for converting steam into steam. The heating device has a water inlet into the chamber and a gas outlet for the steam to flow out of the chamber.

As shown in FIG. 1, in the present embodiment, the air outlet of the steam generator 8 is in communication with one end of the first duct 14, and the other end of the first duct 14 is in communication with the first branch pipe 10 and the second branch pipe 11, respectively. The first branch 10 is in communication with the outer cylinder 1, and the second branch 11 is in communication with the shower 15.

In this embodiment, the first branch pipe 10 and the second branch pipe 11 are respectively provided with a first valve 16 and a second valve 13 for controlling the opening and closing of the branch pipe, so that the control valve is correspondingly controlled when the clothes dryer is in different states. Open and close to achieve the purpose of regulating the direction of steam flow.

In this embodiment, the corresponding state during the working process of the dryer is as follows:

State 1. In the initial stage of the dryer operation, the first valve 16 is closed and the second valve 13 is opened, so that the air outlet of the steam generator 8 is only connected to the shower 15 disposed above the evaporator 7, and the steam is all passed through the shower. 15 flow evaporator 7, the heat of the steam is transferred to the evaporator 7, the evaporator 7 absorbs heat and then releases the heat through the condenser under the action of the compressor, which accelerates the overall working efficiency of the heat pump system, improves the heating rate of the dryer, and accelerates The drying rate of the dryer and the startup energy consumption of the dryer are reduced.

State 2, during the normal steam treatment of the laundry, when the door body 18 at the laundry outlet of the clothes dryer is closed, the first valve 16 and the second valve 13 are simultaneously opened, and the air outlet and the outer cylinder of the steam generator 8 are simultaneously opened. And the shower 15 disposed above the evaporator 7 respectively communicates, the steam flows into the outer cylinder 1 and leads to the evaporator 7, and the steam flowing into the outer cylinder 1 performs steam washing, disinfection, etc. on the laundry, and leads to the evaporator 7. The steam removes the lint attached to the evaporator 7 and sterilizes the evaporator 7 and its surrounding components.

In this embodiment, the first branch pipe 10 is provided with a first valve 16 for controlling the opening and closing of the branch pipe, and the second branch pipe 11 is not provided with a valve for controlling the opening and closing of the branch pipe. During the operation of the dryer, only the first valve 16 is closed, so that all the steam is led to the evaporator 7. After the evaporator 7 absorbs heat, the heat is released through the condenser under the action of the compressor, thereby accelerating the overall work of the heat pump system. Efficiency, increase the heating rate of the dryer, thereby speeding up the drying rate of the dryer, and reducing the startup energy consumption of the dryer, or passing steam to the evaporator 7 and conducting heat on the fins to prevent the door body After the opening, the residual heat in the steam generator 8 causes the steam to continue or suddenly eject, thereby avoiding the occurrence of an operator's burn accident, and the second branch pipe 11 is always in a connected state during the operation of the dryer. The first tube 10 is provided with a first valve 16 for controlling the opening and closing of the branch tube, and the second branch tube 11 is not provided with a valve for controlling the opening and closing of the branch tube, which reduces the number of valves required on the pipeline and reduces the production cost.

Embodiment 2

The difference between this embodiment and the first embodiment is that, as shown in FIG. 1, the angle between the first branch pipe 10 and the first pipe 14 is larger than the angle between the second pipe 11 and the first pipe 14. Through the above arrangement, the three-way structure at the intersection of the first branch pipe 10, the second branch pipe 11 and the first pipe 14 has a Venturi effect, so that most of the steam of the first pipe 14 flows to the first branch pipe 10, and a small portion flows to the second pipe. Branch pipe 11.

As shown in FIG. 2, in the present embodiment, one end of the first duct 14 communicates with the air outlet of the steam generator 8, and the other end communicates with the first branch pipe 10 and the second branch pipe 11 via the three-way 17 respectively. The three-way 17 includes an intake section, a first outlet section and a second outlet section, and one ends of the intake section, the first outlet section and the second outlet section are connected to the same place, and the other end corresponds to the first pipe respectively 14. The first branch pipe 10 and the second branch pipe 11 are in communication; preferably, the axial angle β of the first air outlet section and the air inlet section of the three-way 17 is an obtuse angle greater than 90 degrees, and the second air outlet section and the intake air The axis angle α of the segment is an acute angle less than 90 degrees; more preferably, the first air outlet segment and the air inlet segment are coaxially disposed such that the angle is β is 180 degrees.

State 1. During the normal steam treatment of the laundry, when the door body 18 at the laundry outlet of the clothes dryer is closed, the first valve 16 and the second valve 13 are simultaneously opened, and the air outlet of the steam generator 8 is connected and connected. The showers 15 disposed above the evaporator 7 are respectively connected to each other, and most of the steam flowing out of the steam generator 8 flows into the outer cylinder 1 through the first branch pipe 10 having a large angle with the axis of the first pipe 14, and the steam generator 8 flows out. A small portion of the steam passes through the second branch pipe 11 having a small angle with the axis of the first pipe 14 to the evaporator 7, and the steam flowing into the outer cylinder 1 performs steam washing, disinfection, and the like on the clothes, and the steam pair leading to the evaporator 7 The lint attached to the evaporator 7 is removed and the evaporator 7 and its surrounding components are sterilized.

State 2. During the normal steam treatment of the clothes by the dryer, when the door 18 at the laundry outlet is opened, the first valve 16 is closed and the second valve 13 is opened to allow the steam generator 8 to be discharged. The gas port is only in communication with the shower 15 disposed above the evaporator 7, and all of the steam leads to the evaporator 7, and the steam leads to the evaporator 7 and conducts heat on the fins, preventing the steam generator after the door body 18 is opened. The residual heat in 8 causes the steam to continue or suddenly eject, avoiding the operator's burn accident.

In this embodiment, as shown in FIG. 1 , the ends of the first branch pipe 10 , the second branch pipe 11 , and the first pipe 14 are directly connected to each other to avoid the use of the three-way 17 and simplify the pipe. The number of structures in the road reduces the number of connections to the pipeline.

Embodiment 3

The difference between this embodiment and the above embodiments 1 to 2 is that the first branch pipe 10 is inclined or parallel with respect to the horizontal surface; the second branch pipe 11 is inclined downward with respect to the horizontal surface. Under the above conditions, the unvaporized water generated by the steam generator 8 automatically flows into the shower 15 disposed above the evaporator 7 under gravity to spray the evaporator 7 to remove the lint attached to the evaporator 7. And sterilizing the evaporator 7 and its surrounding components.

State 1. During the normal steam treatment of the laundry, when the door body 18 at the laundry outlet of the clothes dryer is closed, the first valve 16 and the second valve 13 are simultaneously opened, and the air outlet and the outer cylinder of the steam generator 8 are simultaneously opened. 1 and the shower 15 disposed above the evaporator 7 are respectively connected to communicate with each other, and most of the steam flowing out of the steam generator 8 flows into the outer cylinder 1 through the first branch pipe 10 having a larger angle with the axis of the first pipe 14, the steam generator 8 a small portion of the steam flowing out and unvaporized water are led to the evaporator 7 via the second branch pipe 11 having a small angle with the axis of the first pipe 14, and the steam flowing into the outer cylinder 1 feeds the clothes The steam washing, disinfection, and the like are performed, and the steam and unvaporized water leading to the evaporator 7 remove the dust attached to the evaporator 7 and sterilize the evaporator 7 and its surrounding components.

State 2. During the normal steam treatment of the clothes by the dryer, when the door 18 at the laundry outlet is opened, the first valve 16 is closed and the second valve 13 is opened to allow the steam generator 8 to be discharged. The gas port is only in communication with the shower 15 disposed above the evaporator 7, and the steam and unvaporized water all lead to the evaporator 7, and the steam leads to the evaporator 7 and conducts heat on the fins, preventing the door body 18 from being blocked. After the opening, the residual heat in the steam generator 8 causes the steam to continue or suddenly spray, thereby avoiding the occurrence of an operator's burn accident, and the unvaporized water automatically flows into the shower 15 disposed above the evaporator 7 under gravity to the evaporator. 7 spraying is performed to remove the lint attached to the evaporator 7, and the evaporator 7 and its surrounding components are sterilized.

Preferably, the angle β between the first pipe and the first pipe is an obtuse angle greater than 90 degrees, and the angle α between the first pipe and the second pipe is an acute angle less than 90 degrees; more preferably, the first pipe and the first pipe The axis angle β of a tube is 180 degrees.

Embodiment 4

The difference between this embodiment and the above embodiments 1 to 3 is that the dryer has the state 3. When the dryer performs the normal steam treatment process on the laundry, the heating device in the steam generator 8 stops working and continues to the steam. The generator 8 is filled with water for a certain period of time to wash the scale and residual impurities in the steam generator 8, and the flushing water in the steam generator 8 flows to the evaporator 7 through the shower 15 to leave the upper side of the evaporator 7 The attached thread is cleaned.

In this embodiment, when the dryer is in the state 3, the first valve 16 is closed, and the first valve 13 is opened, so that the flushing water flowing into the steam generator 8 through the inlet pipe 9 passes through the air outlet, the first pipe 14, and the first pipe The two tubes 11 and the shower 15 are led to the evaporator 7, and the residual scraps on the evaporator 7 are cleaned to achieve the effect of cleaning the evaporator 7, and finally on the drying duct 2 where the evaporator 7 is located. The condensed water drain pipe for discharging the condensed water is arranged to discharge the flushing water flowing into the steam generator 8 to clean the evaporator 7 and then discharged to the outside of the dryer.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, any technology that is familiar with the present invention. Those skilled in the art can make some modifications or modifications to equivalent embodiments by using the technical content of the above-mentioned hints without departing from the technical scope of the present invention, but the technology according to the present invention does not deviate from the technical solution of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of the present invention.

Claims

A clothes dryer characterized in that a dryer (8) is arranged on the dryer, and the outlet of the steam generator (8) is respectively connected to the outer cylinder (1) and the evaporator (7) via the pipeline The shower (15) is in communication to allow steam to flow controllably to the outer cylinder (1) and/or the evaporator (7).
A clothes dryer according to claim 1, wherein an air outlet of the steam generator (8) is in communication with one end of the first duct (14), and the other end of the first duct (14) is respectively A tube (10) is in communication with the second branch (11), the first branch (10) is in communication with the outer cylinder (1), and the second branch (11) is in communication with the shower (15).
A clothes dryer according to claim 1, characterized in that the angle between the first branch pipe (10) and the first pipe (14) is larger than the second branch pipe (11) and the first pipe (14) The angle between the axes;

Preferably, the first branch pipe (10) is inclined or parallel with respect to the horizontal surface; the second branch pipe (11) is inclined downward with respect to the horizontal surface.
A clothes dryer according to any one of claims 1 to 3, characterized in that the first branch pipe (10) and the second branch pipe (11) are respectively provided with a first valve for controlling the opening and closing of the branch pipe ( 16) and a second valve (13).
A method for controlling a clothes dryer, characterized in that, in the initial stage of the operation of the dryer, all the steam generated by the steam generator flows to the evaporator of the dryer; during the normal steam treatment of the clothes, the steam generator generates a large Part of the steam flows into the outer tub of the dryer, and the unvaporized water flows to the evaporator of the dryer through the sprayer under the force of gravity.
The control method of a clothes dryer according to claim 5, wherein in the initial stage of operation of the dryer, the first valve is closed and the second valve is opened, so that the air outlet of the steam generator is only disposed above the evaporator. The sprinklers are in communication and all of the steam flows through the shower to the evaporator.
A control method for a clothes dryer according to claim 5, wherein during the normal steam treatment of the laundry, the first valve and the second valve are simultaneously opened, and the air outlet and the outer cylinder of the steam generator are The showers disposed above the evaporator are respectively connected to each other, and most of the steam flowing out of the steam generator flows into the outer cylinder through the first branch pipe having a large angle with the first pipeline axis, and a small portion of the steam generator flows out of the steam generator. The water passes through the second branch having a small angle with the axis of the first pipe to the evaporator.
The control method of a clothes dryer according to any one of claims 5 to 7, characterized in that, in the normal steam treatment process of the clothes by the clothes dryer, when the door of the dryer clothes is opened, the door body is opened. First valve The closed and the second valve are opened, so that the steam outlet of the steam generator is only connected to the shower disposed above the evaporator, and the steam and the unvaporized water all lead to the evaporator.
The control method of a clothes dryer according to any one of claims 5 to 7, wherein after the dryer performs normal steam treatment on the laundry, the heating device in the steam generator stops working and continues. Water is introduced into the steam generator for a period of time to flush the scale and residual impurities in the steam generator.
The control method of a clothes dryer according to claim 9, wherein the flushing water in the steam generator flows to the evaporator through the shower to clean the remaining scraps on the upper side of the evaporator.