CN115110260A - Drying method of clothes dryer and clothes dryer - Google Patents
Drying method of clothes dryer and clothes dryer Download PDFInfo
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- CN115110260A CN115110260A CN202110309950.2A CN202110309950A CN115110260A CN 115110260 A CN115110260 A CN 115110260A CN 202110309950 A CN202110309950 A CN 202110309950A CN 115110260 A CN115110260 A CN 115110260A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/48—Control of the energy consumption
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/206—Heat pump arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/24—Condensing arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/26—Heating arrangements, e.g. gas heating equipment
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2101/20—Operation modes, e.g. delicate laundry washing programs, service modes or refreshment cycles
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/28—Air properties
- D06F2103/32—Temperature
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/68—Operation mode; Program phase
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/16—Air properties
- D06F2105/20—Temperature
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/28—Electric heating
Abstract
The invention relates to the technical field of clothes dryers, and particularly discloses a drying method of a clothes dryer and the clothes dryer. The drying method of the clothes dryer provided by the invention provides three drying modes for a user to select, so that the use flexibility of the clothes dryer is improved; under the accelerated drying mode and the general mode, the electric heating element assists the compressor to heat, so that the drying efficiency is improved; because the electric heating element has high energy consumption, only the compressor needs to work in an energy-saving mode, so that energy is saved and emission is reduced; the start and stop of the compressor and the electric heating element are controlled according to the outlet temperature of the condenser, the exhaust port temperature of the compressor and the temperature of the electric heating element, the drying temperature in each drying mode can be accurately controlled, over-drying or non-drying is avoided, the drying effect is improved, and clothes are protected from being damaged.
Description
Technical Field
The invention relates to the technical field of clothes dryers, in particular to a drying method of a clothes dryer and the clothes dryer.
Background
The existing heat pump type clothes dryer is provided with the following gas circulation channels: the heated air heated by the condenser in the heat pump circulation system is sent into the drum containing the clothes, the moisture deprived from the clothes is sent back to the evaporator for dehumidification, and the dehumidified air is heated by the condenser again and sent into the drying chamber.
At present, the heat pump system heats air to dry clothes, the low temperature state of 50-60 ℃ can be maintained to dry the clothes, damage to the clothes, especially some delicate clothes, is reduced to the greatest extent, and the heat pump system can save energy and protect environment. However, the air that is heated and dried by simply using the heat pump system also has some problems, for example, when the environment temperature of the compressor is low, the working efficiency is reduced, the clothes are not dried or the time required for drying the clothes is too long, in addition, the condition of excessively drying the clothes also occurs, not only certain damage is caused to the clothes, but also resource waste is caused. In the prior art, in order to solve the above problems and improve the drying speed and the working efficiency of the clothes dryer, heating elements such as heating wires or heating pipes are arranged in the heat pump clothes dryer for auxiliary heating, and the heating time of the clothes dryer is shortened by combining the heating elements with the heat pump system, so that the drying time is shortened. However, if the heating element and the heat pump system cannot be reasonably matched for use, not only the working efficiency cannot be improved, but also the situation of excessive drying of the clothes can occur, certain damage to the clothes can be caused, and resource waste can also be caused.
Therefore, it is desirable to provide a drying method of a dryer to solve the above problems.
Disclosure of Invention
The invention aims to provide a drying method of a clothes dryer, which improves the drying efficiency, improves the drying effect and avoids excessive drying and resource waste.
In order to achieve the purpose, the invention adopts the following technical scheme:
a drying method of a clothes dryer comprises a heat pump system and an electric heating element, wherein the heat pump system comprises a compressor, a condenser, an evaporator and a throttling device, and the drying method comprises an accelerated drying mode, a general mode and an energy-saving mode;
in the accelerated drying mode or the general mode, the start and stop of the compressor are controlled according to the outlet temperature of the condenser and the exhaust port temperature of the compressor, the start and stop of the electric heating element are controlled according to the outlet temperature of the condenser and the temperature of the electric heating element, and when the compressor stops working, the electric heating element stops working;
and in the energy-saving mode, the electric heating element stops working, and the start and stop of the compressor are controlled according to the outlet temperature of the condenser and the exhaust port temperature of the compressor.
As a preferable technical solution of the drying method of the above dryer, in the accelerated drying mode, the normal mode or the energy saving mode, when any one of the condenser outlet temperature and the compressor discharge port temperature satisfies a corresponding compressor off temperature, the compressor is turned off;
and when the outlet temperature of the condenser and the exhaust port temperature of the compressor simultaneously meet the corresponding starting temperature of the compressor, the compressor is started.
As a preferable technical solution of the drying method for the clothes dryer, in the accelerated drying mode, the normal mode and the energy saving mode, the compressor shutdown temperature corresponding to the outlet temperature of the condenser is 78 ℃, and the compressor shutdown temperature corresponding to the exhaust temperature of the compressor is 100 ℃;
the starting temperature of the compressor corresponding to the outlet temperature of the condenser is 55 ℃, and the starting temperature of the compressor corresponding to the exhaust port temperature of the compressor is 90 ℃.
As a preferable technical solution of the drying method of the above-mentioned clothes dryer, in the accelerated drying mode or the general mode, when any one of the condenser outlet temperature and the temperature at the electric heating member satisfies a corresponding electric heating member off temperature, the electric heating member is turned off;
when the outlet temperature of the condenser and the temperature of the electric heating element simultaneously meet the opening temperature of the corresponding electric heating element, the electric heating element is opened.
As a preferable technical solution of the drying method of the above-mentioned clothes dryer, in the accelerated drying mode, the closing temperature of the electric heating element corresponding to the outlet temperature of the condenser is 70 ℃, and the closing temperature of the electric heating element corresponding to the temperature at the electric heating element is 95 ℃;
the opening temperature of the electric heating element corresponding to the outlet temperature of the condenser is 55 ℃, and the opening temperature of the electric heating element corresponding to the temperature of the electric heating element is 70 ℃.
As a preferable technical solution of the drying method of the above-mentioned clothes dryer, in the general mode, the outlet temperature of the condenser corresponds to the closing temperature of the electric heating element of 60 ℃, and the closing temperature of the electric heating element at the electric heating element corresponds to 90 ℃;
the opening temperature of the electric heating element corresponding to the outlet temperature of the condenser is 50 ℃, and the opening temperature of the electric heating element corresponding to the temperature of the electric heating element is 65 ℃.
As a preferred technical solution of the drying method for the clothes dryer, in the energy-saving mode, a drying coefficient is determined according to a load amount, an ambient temperature and a drying level coefficient, and then a drying time in the energy-saving mode is determined according to the drying coefficient.
As a preferable technical solution of the drying method for the clothes dryer, different load amounts correspond to different load steps, each load step corresponds to a load scaling factor, and a drying factor is load scaling factor × ambient temperature × drying level factor/20.
As a preferable technical solution of the drying method of the dryer, the ring temperature is the outlet temperature of the condenser before heating.
The invention also aims to provide the clothes dryer which is high in working efficiency, good in drying effect, energy-saving and emission-reducing, and improves the satisfaction degree of users.
In order to achieve the purpose, the invention adopts the following technical scheme:
a clothes dryer adopting the drying method of the clothes dryer of any one of the above, the clothes dryer comprises a heat pump system and an electric heating element, wherein the heat pump system comprises a compressor, a condenser, an evaporator and a throttling device;
the clothes dryer also comprises an operation panel, and a mode key for a user to select an accelerated drying mode, a general mode and an energy-saving mode is arranged on the operation panel.
The invention has the beneficial effects that:
the drying method of the clothes dryer provided by the invention provides three drying modes for a user to select, so that the use flexibility of the clothes dryer is improved; under the accelerated drying mode and the general mode, the electric heating element assists the compressor to heat, so that the drying efficiency is improved; because the electric heating element has high energy consumption, only the compressor needs to work in an energy-saving mode, so that energy is saved and emission is reduced; the start and stop of the compressor and the electric heating element are controlled according to the outlet temperature of the condenser, the exhaust port temperature of the compressor and the temperature of the electric heating element, the drying temperature in each drying mode can be accurately controlled, over-drying or non-drying is avoided, the drying effect is improved, and clothes are protected from being damaged.
According to the clothes dryer provided by the invention, a user can select one of the three drying modes according to the requirement, so that the use flexibility of the clothes dryer is improved, the drying effect can meet the user requirement, the energy is saved, the emission is reduced, and the use satisfaction of the user is improved.
Drawings
Fig. 1 is a flowchart of a drying method of a dryer provided by an embodiment of the present invention.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The embodiment provides a drying method of a clothes dryer and the clothes dryer to solve the technical problems that in the prior art, the drying efficiency of the clothes dryer is low, clothes are possibly damaged due to the fact that the clothes are excessively dried or are not dried, and the energy consumption of the clothes dryer is high.
The clothes dryer provided by the embodiment comprises a heat pump system and an electric heating element, wherein the heat pump system comprises a compressor, a condenser, an evaporator and a throttling device. Specifically, the evaporator, the compressor, the condenser and the throttling device are sequentially connected to the evaporator through the refrigerant circulating pipeline, and an electric heating element is arranged on a pipeline connecting an air outlet of the condenser and an inner cylinder of the clothes dryer so as to realize auxiliary heating of air entering the inner cylinder. In this embodiment, the electric heating element may be an electric heating wire, and may also be an electric heating tube, which is not limited herein.
The clothes dryer can execute three drying modes of an accelerated drying mode, a general mode and an energy-saving mode, and further comprises an operation panel, wherein mode keys for a user to select the accelerated drying mode, the general mode and the energy-saving mode are arranged on the operation panel. Specifically, the operation panel is provided with a touch display screen, three separate touch mode keys may be arranged on the touch display screen, each mode key corresponds to one drying mode, and one touch mode key may be arranged to switch between different drying modes and display the font of the current drying mode on the mode key.
In other embodiments, three mechanical mode keys may be provided on the operation panel, each mode key corresponds to one drying mode, or one mechanical mode key may be provided to switch different drying modes, and an area displaying the font of the current drying mode is provided on the corresponding operation panel, so that a user can know the current drying mode.
The reasonable matching of the electric heating element and the heat pump system can improve the working efficiency of the clothes dryer and improve the drying effect.
Specifically, as shown in fig. 1, in the present embodiment, the drying method includes an accelerated drying mode, a general mode and an energy saving mode, the clothes dryer performs a drying operation according to the drying mode selected by a user, in the accelerated drying mode or the general mode, the start and stop of the compressor are controlled according to the outlet temperature of the condenser and the outlet temperature of the compressor, the start and stop of the electric heating element are controlled according to the outlet temperature of the condenser and the temperature at the electric heating element, and when the compressor stops operating, the electric heating element stops operating; and in the energy-saving mode, the electric heating element stops working, and the start and stop of the compressor are controlled according to the outlet temperature of the condenser and the exhaust port temperature of the compressor.
In the embodiment, three drying modes are provided for a user to select, so that the use flexibility of the clothes dryer is improved; under the accelerated drying mode and the general mode, the electric heating element assists the compressor to heat, so that the drying efficiency is improved; because the electric heating element has high energy consumption, only the compressor needs to work in an energy-saving mode, so that energy is saved and emission is reduced; the start and stop of the compressor and the electric heating element are controlled according to the outlet temperature of the condenser, the exhaust port temperature of the compressor and the temperature of the electric heating element, the drying temperature in each drying mode can be accurately controlled, over-drying or non-drying is avoided, the drying effect is improved, and clothes are protected from being damaged.
In this embodiment, if the user selects the accelerated drying mode, the controller of the dryer calls a program command corresponding to the accelerated drying mode. In the drying process of the clothes dryer, when any one of the outlet temperature of the condenser and the exhaust temperature of the compressor meets the corresponding compressor closing temperature, the compressor is closed to stop working, but when the compressor stops working, the electric heating element is not consistent with the closing condition and is closed along with the closing condition, excessive drying of the clothes dryer is avoided, and clothes are effectively protected.
Further preferably, the condenser outlet temperature corresponds to a compressor off temperature of 78 ℃ and the compressor discharge temperature corresponds to a compressor off temperature of 100 ℃. The temperature of the gas discharged through the compressor is higher than the temperature at the condenser outlet, and therefore the compressor off temperature at the condenser outlet is also lower than the compressor discharge temperature. When the outlet temperature of the condenser is detected to be 78 ℃ or even higher than 78 ℃ or the temperature of the exhaust port of the compressor is detected to be 100 ℃ or even higher than 100 ℃, the compressor stops working, the accuracy of drying temperature control in the cylinder is improved, and excessive drying is effectively avoided. In other embodiments, the compressor shutdown temperature corresponding to the condenser outlet temperature and the compressor shutdown temperature corresponding to the compressor exhaust port temperature are not limited to the above temperature values, and may be determined comprehensively according to parameters such as the capacity of the dryer.
After the compressor stops working, along with the operation of the clothes dryer, the temperature of the gas entering the inner barrel can be gradually reduced, therefore, when the outlet temperature of the condenser and the exhaust temperature of the compressor meet the corresponding opening temperature of the compressor at the same time, the compressor can be opened, and the clothes dryer is prevented from being excessively dried.
Further preferably, the condenser outlet temperature corresponds to a compressor turn-on temperature of 55 ℃ and the compressor discharge temperature corresponds to a compressor turn-on temperature of 90 ℃. When the outlet temperature of the condenser is detected to be 55 ℃ or even lower than 55 ℃, and the exhaust temperature of the compressor is detected to be 90 ℃ or even lower than 90 ℃, the temperature of the gas entering the inner drum is proved to be incapable of reaching the required drying temperature, the compressor is started, and the problem that the clothes in the inner drum cannot be dried is avoided while energy is saved. In other embodiments, the compressor starting temperature corresponding to the condenser outlet temperature and the compressor starting temperature corresponding to the compressor exhaust port temperature are not limited to the above temperature values, and may be determined comprehensively according to parameters such as the capacity of the dryer.
The electric heating element assists the heat pump system to heat the gas entering the inner barrel so as to improve the drying efficiency, especially under the low-temperature environment, the drying efficiency can be improved by 20 percent, and the problem that the working efficiency of the compressor is low when the environmental temperature is low in the prior art is solved. Certainly, in order to avoid excessive drying, the electric heating element is heated to a certain degree and can be selectively closed, so that the auxiliary heating effect can be achieved, excessive drying can be avoided, and energy conservation and emission reduction can be realized. Specifically, the electric heating member is turned off when any one of the condenser outlet temperature and the temperature at the electric heating member satisfies the corresponding electric heating member turn-off temperature. When the electric heating element and the compressor work simultaneously, the electric heating element is preferentially closed. In the actual use process, the starting time of the compressor is long, and the number of times of stopping the compressor needs to be reduced as much as possible so as to improve the working efficiency of the clothes dryer.
Further preferably, the condenser outlet temperature corresponds to an electrical heating element off temperature of 70 ℃ and the electrical heating element temperature corresponds to an electrical heating element off temperature of 95 ℃. The condenser outlet temperature corresponds to an electrical heating element closing temperature lower than the compressor outlet temperature, so that the electrical heating elements are closed preferentially. When detecting that the outlet temperature of the condenser is 70 ℃ or even higher than 70 ℃ or the temperature of the electric heating element is 95 ℃ or even higher than 95 ℃, the electric heating element stops working, the accuracy of drying temperature control in the cylinder is improved, and excessive drying is effectively avoided. In other embodiments, the closing temperature of the electric heating member corresponding to the outlet temperature of the condenser and the closing temperature of the electric heating member corresponding to the temperature at the electric heating member are not limited to the above temperature values, and may be determined comprehensively according to parameters such as the capacity of the dryer.
After the electric heating element stop work, along with the operation of dryer, the temperature of the gas that the compressor provided can not reach operation requirement, and the temperature of the gas that enters into in the inner tube can lower the temperature gradually, consequently, when condenser exit temperature and electric heating element department temperature satisfied corresponding electric heating element simultaneously and opened the temperature, electric heating element just can open, avoids the dryer excessively to dry, can also guarantee in time to improve the temperature that gets into in the inner tube.
Further preferably, the condenser outlet temperature corresponds to an electrical heating element activation temperature of 55 ℃ and the temperature at the electrical heating element corresponds to an electrical heating element activation temperature of 70 ℃. When the temperature of the outlet of the condenser is detected to be 55 ℃ or even lower than 55 ℃, and the temperature of the electric heating element is detected to be 70 ℃ or even lower than 70 ℃, the temperature of the gas entering the inner drum is proved to be incapable of reaching the required drying temperature, the electric heating element is started, and the problem that the clothes in the inner drum cannot be dried is avoided while energy is saved. In other embodiments, the opening temperature of the electric heating element corresponding to the outlet temperature of the condenser and the opening temperature of the electric heating element corresponding to the temperature at the electric heating element are not limited to the above temperature values, and may be determined comprehensively according to parameters such as the capacity of the dryer.
In this embodiment, if the user selects the general mode, the controller of the dryer calls a program command corresponding to the general mode. In the drying process of the clothes dryer, when any one of the outlet temperature of the condenser and the exhaust temperature of the compressor meets the corresponding compressor closing temperature, the compressor is closed. But when the compressor stops working, the electric heating part is not in accordance with the closing condition and is closed along with the closing condition, so that the excessive drying of the clothes dryer is avoided, and the clothes are effectively protected.
Further preferably, the condenser outlet temperature corresponds to a compressor off temperature of 78 ℃ and the compressor discharge temperature corresponds to a compressor off temperature of 100 ℃. The temperature of the gas exiting the compressor is higher than the temperature at the condenser outlet, and therefore the compressor off temperature at the condenser outlet is also lower than the compressor discharge temperature. When the outlet temperature of the condenser is detected to be 78 ℃ or even higher than 78 ℃ or the temperature of the exhaust port of the compressor is detected to be 100 ℃ or even higher than 100 ℃, the compressor stops working, the accuracy of drying temperature control in the cylinder is improved, and excessive drying is effectively avoided. In other embodiments, the compressor shutdown temperature corresponding to the condenser outlet temperature and the compressor shutdown temperature corresponding to the compressor exhaust port temperature are not limited to the above temperature values, and may be determined comprehensively according to parameters such as the capacity of the dryer.
After the compressor stops working, along with the operation of the clothes dryer, the temperature of the gas entering the inner barrel can be gradually reduced, therefore, when the outlet temperature of the condenser and the exhaust temperature of the compressor meet the corresponding opening temperature of the compressor at the same time, the compressor can be opened, and the clothes dryer is prevented from being excessively dried.
Further preferably, the condenser outlet temperature corresponds to a compressor turn-on temperature of 55 ℃ and the compressor discharge temperature corresponds to a compressor turn-on temperature of 90 ℃. When the outlet temperature of the condenser is detected to be 55 ℃ or even lower than 55 ℃, and the exhaust temperature of the compressor is detected to be 90 ℃ or even lower than 90 ℃, the temperature of the gas entering the inner drum is proved to be incapable of reaching the required drying temperature, the compressor is started, and the problem that the clothes in the inner drum cannot be dried is avoided while energy is saved. In other embodiments, the compressor starting temperature corresponding to the condenser outlet temperature and the compressor starting temperature corresponding to the compressor exhaust port temperature are not limited to the above temperature values, and may be determined comprehensively according to parameters such as the capacity of the dryer.
The electric heating element assists the heat pump system to heat the gas entering the inner barrel so as to improve the drying efficiency, especially under the low-temperature environment, the drying efficiency can be improved by 20 percent, and the problem that the working efficiency of the compressor is low when the environmental temperature is low in the prior art is solved. Certainly, in order to avoid excessive drying, the electric heating element is heated to a certain degree and can be selectively closed, so that the auxiliary heating effect can be achieved, the excessive drying can be avoided, and energy conservation and emission reduction can be realized. Specifically, the electric heating member is turned off when any one of the condenser outlet temperature and the temperature at the electric heating member satisfies the corresponding electric heating member turn-off temperature. When the electric heating element and the compressor work simultaneously, the electric heating element is preferentially closed. In the actual use process, the compressor has long starting time, and the number of times of stopping the compressor needs to be reduced as much as possible so as to improve the working efficiency of the clothes dryer. In addition, in the general mode, the closing temperature of the electric heating element corresponding to the outlet temperature of the condenser is lower than the closing temperature of the electric heating element corresponding to the outlet temperature of the condenser in the accelerated drying mode, and the closing temperature of the electric heating element corresponding to the temperature at the electric heating element is also lower than the closing temperature of the electric heating element corresponding to the temperature at the electric heating element in the accelerated drying mode, so that the general mode is energy-saving compared with the accelerated drying mode, but the drying efficiency is slightly lower than the accelerated drying mode.
Further preferably, the condenser outlet temperature corresponds to an electrical heating element off temperature of 60 ℃ and the electrical heating element temperature corresponds to an electrical heating element off temperature of 90 ℃. The electrical heating element closing temperature corresponding to the condenser outlet temperature is lower than the compressor closing temperature corresponding to the condenser outlet temperature, so that the electrical heating elements are preferentially closed. When detecting that the outlet temperature of the condenser is 60 ℃ or even higher than 60 ℃ or the temperature of the electric heating element is 90 ℃ or even higher than 90 ℃, the electric heating element stops working, the accuracy of drying temperature control in the cylinder is improved, and excessive drying is effectively avoided. In other embodiments, the closing temperature of the electric heating member corresponding to the outlet temperature of the condenser and the closing temperature of the electric heating member corresponding to the temperature at the electric heating member are not limited to the above temperature values, and may be determined comprehensively according to parameters such as the capacity of the dryer.
After the electric heating element stop work, along with the operation of dryer, the temperature of the gas that the compressor provided can not reach operation requirement, and the temperature of the gas that enters into in the inner tube can lower the temperature gradually, consequently, when condenser exit temperature and electric heating element department temperature satisfied corresponding electric heating element simultaneously and opened the temperature, electric heating element just can open, avoids the dryer excessively to dry, can also guarantee in time to improve the temperature that gets into in the inner tube.
Further preferably, the condenser outlet temperature corresponds to an electrical heating element activation temperature of 50 ℃ and the temperature at the electrical heating element corresponds to an electrical heating element activation temperature of 65 ℃. When the temperature of the outlet of the condenser is detected to be 50 ℃ or even lower than 50 ℃ and the temperature of the electric heating element is detected to be 65 ℃ or even lower than 65 ℃, the temperature of the gas entering the inner drum is proved to be incapable of reaching the required drying temperature, the electric heating element needs to be started, and the problem that the clothes in the inner drum cannot be dried is avoided while energy is saved. In other embodiments, the opening temperature of the electric heating element corresponding to the outlet temperature of the condenser and the opening temperature of the electric heating element corresponding to the temperature at the electric heating element are not limited to the above temperature values, and may be determined comprehensively according to parameters such as the capacity of the dryer. In addition, in the general mode, the opening temperature of the electric heating element corresponding to the outlet temperature of the condenser is lower than the opening temperature of the electric heating element corresponding to the outlet temperature of the condenser in the accelerated drying mode, and the opening temperature of the electric heating element corresponding to the temperature at the electric heating element is also lower than the opening temperature of the electric heating element corresponding to the temperature at the electric heating element in the accelerated drying mode, so that the energy is saved in the general mode compared with the accelerated drying mode, but the drying efficiency is slightly lower than the accelerated drying mode.
In this embodiment, if the user selects the energy saving mode, the controller of the dryer calls a program command corresponding to the energy saving mode. In the drying process of the clothes dryer, because the electric heating element has high power consumption, in order to achieve the purpose of energy saving, the electric heating element stops working in an energy saving mode, and when any one of the outlet temperature of the condenser and the exhaust temperature of the compressor meets the corresponding compressor closing temperature, the compressor is closed.
Further preferably, the condenser outlet temperature corresponds to a compressor off temperature of 78 ℃ and the compressor discharge temperature corresponds to a compressor off temperature of 100 ℃. The temperature of the gas discharged through the compressor is higher than the temperature at the condenser outlet, and therefore the compressor off temperature at the condenser outlet is also lower than the compressor discharge temperature. When the outlet temperature of the condenser is detected to be 78 ℃ or even higher than 78 ℃ or the temperature of the exhaust port of the compressor is detected to be 100 ℃ or even higher than 100 ℃, the compressor stops working, the accuracy of drying temperature control in the cylinder is improved, and excessive drying is effectively avoided. In other embodiments, the compressor shutdown temperature corresponding to the condenser outlet temperature and the compressor shutdown temperature corresponding to the compressor exhaust port temperature are not limited to the above temperature values, and may be determined comprehensively according to parameters such as the capacity of the dryer.
After the compressor stops working, along with the operation of the clothes dryer, the temperature of the gas entering the inner barrel can be gradually reduced, therefore, when the outlet temperature of the condenser and the exhaust temperature of the compressor meet the corresponding opening temperature of the compressor at the same time, the compressor can be opened, and the clothes dryer is prevented from being excessively dried.
Further preferably, the condenser outlet temperature corresponds to a compressor turn-on temperature of 55 ℃ and the compressor discharge temperature corresponds to a compressor turn-on temperature of 90 ℃. When the outlet temperature of the condenser is detected to be 55 ℃ or even lower than 55 ℃, and the exhaust temperature of the compressor is detected to be 90 ℃ or even lower than 90 ℃, the temperature of the gas entering the inner drum is proved to be incapable of reaching the required drying temperature, the compressor is started, and the problem that the clothes in the inner drum cannot be dried is avoided while energy is saved. In other embodiments, the compressor starting temperature corresponding to the condenser outlet temperature and the compressor starting temperature corresponding to the compressor exhaust port temperature are not limited to the above temperature values, and may be determined comprehensively according to parameters such as the capacity of the dryer.
Further, in order to avoid the problem of over-drying or no-drying of the dryer, it is necessary to precisely control the drying time, and in this embodiment, in the energy saving mode, the drying coefficient is determined according to the load amount, the ambient temperature and the drying level coefficient, and then the drying time in the energy saving mode is determined according to the drying coefficient. The smaller the baking coefficient is, the longer the drying time is, and the larger the baking coefficient is, the longer the drying time is.
Furthermore, different load quantities correspond to different load gears, each load gear corresponds to a load proportionality coefficient, and the baking coefficient is equal to the load proportionality coefficient multiplied by the ring temperature multiplied by the drying grade coefficient/20. Specifically, in this embodiment, the load is divided into four classes, i.e., a small load, a medium-large load and a large load, according to the load amount, and the load weights of the small load, the medium-large load and the large load are sequentially increased, where the load scaling factor corresponding to the small load is 1.5, the load scaling factor corresponding to the medium load is 1.2, the scaling factor corresponding to the medium-large load is 1, and the scaling factor corresponding to the large load is 0.8. The grade of each load amount corresponds to the weight range of one piece of clothes, and the clothes dryer determines the load proportionality coefficient according to the judgment on the weight of the clothes put into the inner drum. The drying grade is generally divided into two grades of storage and drying grade, wherein the storage corresponds to a drying grade coefficient of 2, and the drying grade coefficient corresponds to a drying grade coefficient of 3.
Before the clothes dryer is heated to work, the outlet temperature of the condenser is approximate to the ring temperature, so that the outlet temperature of the condenser before heating is used as the ring temperature, a temperature detection piece arranged at the outlet of the condenser is used, a sensor for detecting the ambient temperature is not required to be arranged, and the cost is reduced.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A drying method of a clothes dryer, the clothes dryer comprises a heat pump system and an electric heating element, the heat pump system comprises a compressor, a condenser, an evaporator and a throttling device, and the drying method is characterized by comprising an accelerated drying mode, a general mode and an energy-saving mode;
in the accelerated drying mode or the general mode, the start and stop of the compressor are controlled according to the outlet temperature of the condenser and the exhaust port temperature of the compressor, the start and stop of the electric heating element are controlled according to the outlet temperature of the condenser and the temperature of the electric heating element, and when the compressor stops working, the electric heating element stops working;
and in the energy-saving mode, the electric heating element stops working, and the start and stop of the compressor are controlled according to the outlet temperature of the condenser and the exhaust port temperature of the compressor.
2. The drying method of a dryer according to claim 1, wherein in the acceleration drying mode, the general mode or the saving mode, when any one of the condenser outlet temperature and the compressor discharge port temperature satisfies a corresponding compressor off temperature, the compressor is turned off;
and when the outlet temperature of the condenser and the exhaust port temperature of the compressor simultaneously meet the corresponding starting temperature of the compressor, the compressor is started.
3. The drying method of a clothes dryer according to claim 2, wherein in the accelerated drying mode, the normal mode and the energy saving mode, the compressor off temperature corresponding to the condenser outlet temperature is 78 ℃ and the compressor off temperature corresponding to the compressor discharge outlet temperature is 100 ℃;
the starting temperature of the compressor corresponding to the outlet temperature of the condenser is 55 ℃, and the starting temperature of the compressor corresponding to the exhaust port temperature of the compressor is 90 ℃.
4. The drying method of the clothes dryer according to claim 1, wherein in the acceleration drying mode or the general mode, when any one of the condenser outlet temperature and the temperature at the electric heating element satisfies a corresponding electric heating element off temperature, the electric heating element is turned off;
when the outlet temperature of the condenser and the temperature of the electric heating element simultaneously meet the opening temperature of the corresponding electric heating element, the electric heating element is opened.
5. The drying method of a clothes dryer according to claim 4, wherein in the accelerated drying mode, the condenser outlet temperature corresponds to an off temperature of the electric heating element of 70 ℃, and the electric heating element at the electric heating element has an off temperature of 95 ℃;
the opening temperature of the electric heating element corresponding to the outlet temperature of the condenser is 55 ℃, and the opening temperature of the electric heating element corresponding to the temperature of the electric heating element is 70 ℃.
6. The drying method of a clothes dryer according to claim 4, wherein in the general mode, the condenser outlet temperature corresponds to the electric heating element off temperature of 60 ℃, and the electric heating element temperature corresponds to the electric heating element off temperature of 90 ℃;
the opening temperature of the electric heating element corresponding to the outlet temperature of the condenser is 50 ℃, and the opening temperature of the electric heating element corresponding to the temperature of the electric heating element is 65 ℃.
7. The drying method of a dryer according to claim 1, wherein in the energy saving mode, a drying coefficient is determined according to a load amount, an ambient temperature and a drying level coefficient, and then a drying time in the energy saving mode is determined according to the drying coefficient.
8. The drying method of clothes dryer according to claim 7, wherein different load amounts correspond to different load steps, each load step corresponds to a load scaling factor, and the drying factor is load scaling factor x ring temperature x drying level factor/20.
9. The drying method of a dryer according to claim 7, wherein the ring temperature is the condenser outlet temperature before heating.
10. Clothes dryer adopting the drying method of clothes dryer of any one of claims 1 to 9, characterized in that the clothes dryer comprises a heat pump system and an electric heating element, the heat pump system comprises a compressor, a condenser, an evaporator and a throttling device;
the clothes dryer also comprises an operation panel, and a mode key for a user to select an accelerated drying mode, a general mode and an energy-saving mode is arranged on the operation panel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110309950.2A CN115110260A (en) | 2021-03-23 | 2021-03-23 | Drying method of clothes dryer and clothes dryer |
| PCT/CN2022/082393 WO2022199595A1 (en) | 2021-03-23 | 2022-03-23 | Drying method of clothes dryer, and clothes dryer |
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| CN202110309950.2A CN115110260A (en) | 2021-03-23 | 2021-03-23 | Drying method of clothes dryer and clothes dryer |
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| CN202110309950.2A Pending CN115110260A (en) | 2021-03-23 | 2021-03-23 | Drying method of clothes dryer and clothes dryer |
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| WO (1) | WO2022199595A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04263900A (en) * | 1991-02-20 | 1992-09-18 | Matsushita Electric Ind Co Ltd | Drier |
| CN105839375A (en) * | 2015-01-12 | 2016-08-10 | 青岛海尔洗衣机有限公司 | Clothes dryer control method and clothes dryer |
| CN204491254U (en) * | 2015-02-25 | 2015-07-22 | 胡家萍 | The closed clothing-drying wardrobe of a kind of three condenser |
| JP6486197B2 (en) * | 2015-05-27 | 2019-03-20 | 東芝ライフスタイル株式会社 | Clothes dryer |
| CN106245266A (en) * | 2016-08-30 | 2016-12-21 | 无锡小天鹅股份有限公司 | Clothes dryer systems and there is its dryer, washing-drying integral machine |
| CN111851016B (en) * | 2019-04-30 | 2022-08-26 | 无锡小天鹅电器有限公司 | Drying device, clothes dryer, washing and drying integrated machine and drying method |
-
2021
- 2021-03-23 CN CN202110309950.2A patent/CN115110260A/en active Pending
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- 2022-03-23 WO PCT/CN2022/082393 patent/WO2022199595A1/en active Application Filing
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