Gas hot water heating clothes dryer control method and device and clothes dryer

Abstract

The invention provides a gas hot water heating clothes dryer control method and device and a clothes dryer, the gas hot water heating clothes dryer comprises a roller, a first combustion chamber and a second combustion chamber, the first combustion chamber is used for providing heating hot water and bathroom hot water, and the method comprises the steps that the state of the first combustion chamber is obtained on the basis of receiving a drying program starting instruction; if the first combustion chamber is in the working state, the first combustion chamber serves as a drying heat source; if the first combustion chamber is in the flameout state, a second combustion chamber is started and serves as a drying heat source; acquiring first temperature and humidity detected by a first temperature and humidity sensor and second temperature and humidity detected by a second temperature and humidity sensor; and controlling the drying program to enter different drying stages according to the first temperature and humidity and the second temperature and humidity, wherein the drying parameters of the different drying stages are different. According to the method, the waste heat for heating or providing bathroom hot water can be used for drying, so that the heat is fully utilized, and the energy is saved.

Description

Technical Field

[0001] This invention relates to the field of bathing devices, and more particularly to a control method, device, and dryer for a gas-fired hot water heating clothes dryer. Background Technology

[0002] With the advancement of technology, clothes dryers are becoming increasingly widely used. Among them, gas dryers use the heat generated by the combustion of gas to heat the air. The heated, dry air enters the drying drum and comes into contact with the wet clothes inside, thereby drying the clothes.

[0003] Currently, the combustion chambers in gas dryers only heat air for drying clothes and cannot heat water to provide hot water. They fail to fully utilize the multi-functional applications and maximize the market value of gas combustion heat energy. Therefore, gas dryers are lacking in practicality and market value in terms of combustion functionality. Summary of the Invention

[0004] This invention provides a control method, device, and gas-fired hot water heating clothes dryer to at least solve the above-mentioned technical problems existing in the prior art.

[0005] According to a first aspect of the present invention, a control method for a gas-fired hot water heating clothes dryer is provided. The gas-fired hot water heating clothes dryer includes a drum, a first combustion chamber, a second combustion chamber, an exhaust device, a first temperature and humidity sensor, and a second temperature and humidity sensor. The exhaust device is disposed at the exhaust end of the drum, and the exhaust end of the drum is connected to an exhaust channel. The first temperature and humidity sensor is disposed in the exhaust channel, and the second temperature and humidity sensor is disposed at the air inlet end of the drum. The first combustion chamber is connected to the air inlet of the drum through a first combustion exhaust channel, and the second combustion chamber is connected to the air inlet of the drum through a second combustion exhaust channel. The first combustion chamber is used to provide heating hot water and bathroom hot water. The method includes:

[0006] Based on the received drying program start command, the state of the first combustion chamber is obtained;

[0007] If the first combustion chamber is in operation, then the first combustion chamber is used as the drying heat source;

[0008] If the first combustion chamber is in a extinguished state, the second combustion chamber is started and used as the drying heat source;

[0009] Acquire the first temperature and humidity detected by the first temperature and humidity sensor and the second temperature and humidity detected by the second temperature and humidity sensor;

[0010] The drying program enters different drying stages based on the first temperature and humidity and the second temperature and humidity, and the drying parameters are different in different drying stages.

[0011] In an optional embodiment, the drying stage includes a heating stage, a constant-speed drying stage, a cooling-speed drying stage, and a cold-air blowing stage. In the heating stage, the drum rotates at a first speed. In the constant-speed drying stage, the drum rotates at a second speed. In the cooling-speed drying stage, the drum rotates at a third speed. In the cold-air blowing stage, the drum rotates at a fourth speed. The second speed is lower than the first speed, and the third and fourth speeds are lower than the second speed. The third and fourth speeds may be the same as or different from each other.

[0012] In an optional embodiment, the first rotational speed ranges from 52 rpm to 58 rpm; the second rotational speed ranges from 45 rpm to 50 rpm; and the third and fourth rotational speeds range from 42 rpm to 48 rpm.

[0013] In an optional embodiment, during the heating phase and the deceleration drying phase, the exhaust device provides a first wind speed; during the constant speed drying phase and the cold air blowing phase, the exhaust device provides a second wind speed, the second wind speed being higher than the first wind speed.

[0014] In an optional embodiment, when the second combustion chamber is used as the drying heat source, during the heating stage, the second combustion chamber adopts a first combustion setting; during the constant-speed drying stage, the second combustion chamber adopts a second combustion setting; during the deceleration drying stage, the second combustion chamber adopts a third combustion setting; during the cold air blowing stage, the second combustion chamber is shut down and stops working; the heat provided by the first combustion setting, the second combustion setting, and the third combustion setting decreases sequentially.

[0015] In an alternative embodiment, the drum rotates alternately in forward and reverse directions during the four stages of drying.

[0016] In an optional embodiment, the gas-fired hot water heating clothes dryer further includes a condenser and a water pump. The condenser is located on the first combustion exhaust passage. The water pump has seven ports: the first port is a bathroom water inlet, the second port is a heating return water inlet, the third port is an outlet connected to the condenser via a water pipe, the fourth port is connected to an expansion tank, the fifth port is equipped with an exhaust valve for venting air and draining water, the sixth port is equipped with a heating safety pressure relief valve, and the seventh port is a water pump drain port for discharging impurities and contaminants generated by the water pump during operation.

[0017] The method further includes:

[0018] Adjust the pump speed according to the ambient water pressure to keep the water supply pressure within the set range.

[0019] In an optional embodiment, the method further includes:

[0020] If the first combustion chamber is shut down and stops working during the drying process, the second combustion chamber is started and used as the drying heat source.

[0021] According to a second aspect of the present invention, a control device for a gas-fired hot water heating clothes dryer is provided. The gas-fired hot water heating clothes dryer includes a drum, a first combustion chamber, a second combustion chamber, an exhaust device, a first temperature and humidity sensor, and a second temperature and humidity sensor. The exhaust device is disposed at the exhaust end of the drum, and the exhaust end of the drum is connected to an exhaust channel. The first temperature and humidity sensor is disposed in the exhaust channel, and the second temperature and humidity sensor is disposed at the air inlet end of the drum. The first combustion chamber is connected to the air inlet of the drum through a first combustion exhaust channel, and the second combustion chamber is connected to the air inlet of the drum through a second combustion exhaust channel. The first combustion chamber is used to provide heating hot water and bathroom hot water. The device includes:

[0022] The program module is used to obtain the status of the first combustion chamber based on the received drying program start command;

[0023] The combustion control module, if the first combustion chamber is in the working state, uses the first combustion chamber as the drying heat source; if the first combustion chamber is in the off state, it starts the second combustion chamber and uses the second combustion chamber as the drying heat source.

[0024] The drying module is used to acquire the first temperature and humidity detected by the first temperature and humidity sensor and the second temperature and humidity detected by the second temperature and humidity sensor; and to control the drying program to enter different drying stages according to the first temperature and humidity and the second temperature and humidity, with different drying parameters for different drying stages.

[0025] According to a third aspect of the present invention, a gas-fired hot water heating clothes dryer is provided, comprising:

[0026] At least one processor; and

[0027] A memory communicatively connected to the at least one processor; wherein,

[0028] The memory stores information that can be executed by the at least one processor, and the information is executed by the at least one processor to enable the at least one processor to perform the method described in the embodiments of the present invention.

[0029] According to a fourth aspect of the present invention, a non-transitory computer-readable storage medium is provided that stores computer information for causing the computer to perform the method described in the present invention.

[0030] In the method of this embodiment of the invention, after receiving the drying program start command, the state of the first combustion chamber is obtained to determine whether the first combustion chamber is in working condition. If the first combustion chamber is in working condition and provides hot water for bathroom or heating, the first combustion chamber is used as the drying heat source, and there is no need to start the second combustion chamber. The heat energy generated by the combustion in the first combustion chamber can be used to dry clothes while heating the bathroom or heating water, making full use of the combustion heat energy and reducing energy consumption. If the first combustion chamber is in an off state, it means that there is no need for bathroom hot water or heating. At this time, the second combustion chamber is started and used as the drying heat source, avoiding energy waste caused by using the first combustion chamber. The heat energy generated by the combustion in the second combustion chamber is only used for drying, which can make full use of the heat energy generated by combustion.

[0031] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0032] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of the invention are illustrated in the drawings by way of example and not limitation, wherein:

[0033] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0034] Figure 1 A schematic diagram illustrating the implementation flow of the control method for a gas-fired hot water heating clothes dryer according to an embodiment of the present invention is shown.

[0035] Figure 2 This diagram illustrates the structure of a gas-fired hot water heating clothes dryer according to an embodiment of the present invention.

[0036] Figure 3 This diagram illustrates the working principle of a gas-fired hot water heating clothes dryer according to an embodiment of the present invention.

[0037] Figure 4 A schematic diagram of the composition structure of the control device for a gas-fired hot water heating clothes dryer according to an embodiment of the present invention is shown;

[0038] Figure 5 The diagram shows the structural composition of a controller for a gas-fired hot water heating clothes dryer according to an embodiment of the present invention.

[0039] Explanation of the labels in the diagram: 10-Exhaust pipe, 20-Exhaust device, 30-Lush collector, 40-Roller, 50-Bathroom water outlet, 51-Bathroom water outlet valve, 52-Bathroom water outlet temperature sensor, 53-Three-way valve, 54-Pressure sensor, 55-Main water outlet thermostat, 56-Heating water outlet temperature sensor, 57-Heating water outlet valve, 58-Heating water outlet, 59-Condensate outlet, 60-Condensate collection box, 61-Condensate box cleaning port, 62-Condensate exchanger, 63-Bathroom water inlet, 64-Bathroom water inlet valve, 65-Heating water return outlet, 66-Magnetic filter, 67-Heating water return valve, 68-Heating water return temperature sensor Sensors, 69-Water pump, 70-Expansion tank, 71-Exhaust valve, 72-Heating safety pressure relief valve, 73-Pressure relief drain, 74-Water pump drain, 75-Gas inlet, 76-Gas filter, 77-Gas proportional valve, 78-First solenoid valve, 79-Indoor thermostat, 80-Second solenoid valve, 81-Hot water burner, 82-First ignition needle, 83-Third solenoid valve, 84-Dryer burner, 85-Second ignition needle, 86-First combustion chamber, 87-Second combustion chamber, 88-Combustion chamber exhaust passage, 89-Drum air inlet passage, 891-Air inlet passage hole, 91-First temperature and humidity sensor, 92-Second temperature and humidity sensor. Detailed Implementation

[0040] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0041] This invention provides a control method for a gas-fired hot water heating clothes dryer. See also: Figure 2This invention relates to a gas-fired hot water heating and drying machine, which includes a drum 40 and two combustion chambers. A first combustion chamber 86 is connected to the air inlet of the drum 40 via a first combustion exhaust channel, and a second combustion chamber 87 is connected to the air inlet of the drum 40 via a second combustion exhaust channel. The first combustion chamber 86 provides heating hot water and bathroom hot water. While providing heating hot water for heating or bathroom hot water for bathing, the first combustion chamber 86 can also provide hot air to the drum 40 for drying, thus fully utilizing heat energy and reducing energy consumption. The second combustion chamber 87 can perform drying independently. When the first combustion chamber 86 does not provide heating hot water or bathroom hot water, the second combustion chamber 87 can serve as a drying heat source, providing the necessary hot air for drying. This invention integrates drying, hot water, and heating functions into one unit, improving the integration of combustion products and replacing the single combustion systems of existing water heaters and wall-mounted boilers. The multi-functional integrated combustion system control improves the practicality of gas combustion and increases the market value of gas combustion, achieving three uses in one machine.

[0042] The gas-fired hot water heating clothes dryer of this embodiment of the invention has an exhaust device 20 at the exhaust end of the drum 40. The exhaust end of the drum 40 is connected to an exhaust channel. The centrifugal force generated after the exhaust device 20 is activated causes the hot and humid air generated during drying to be discharged from the exhaust channel. A first temperature and humidity sensor 91 can be installed in the exhaust channel, and a second temperature and humidity sensor 92 can be installed at the air inlet end of the drum 40. By monitoring the temperature and humidity changes during the drying process, a basis for adjusting the parameters of the drying process can be provided.

[0043] See Figure 1 The control method for a gas-fired hot water heating clothes dryer according to an embodiment of the present invention includes:

[0044] S10. Based on the received drying program start command, obtain the status of the first combustion chamber 86;

[0045] S20. If the first combustion chamber 86 is in operation, then the first combustion chamber 86 is used as the drying heat source.

[0046] S30. If the first combustion chamber 86 is in the off state, the second combustion chamber 87 is started and used as the drying heat source.

[0047] S40: Obtain the first temperature and humidity detected by the first temperature and humidity sensor 91 and the second temperature and humidity detected by the second temperature and humidity sensor 92;

[0048] S50. Based on the first temperature and humidity and the second temperature and humidity, the drying program enters different drying stages, and the drying parameters are different in different drying stages.

[0049] In the method of this embodiment of the invention, after receiving the drying program start command, the state of the first combustion chamber 86 is obtained to determine whether the first combustion chamber 86 is in a working state. If the first combustion chamber 86 is in a working state and provides hot water for bathroom or heating, then the first combustion chamber 86 is used as the drying heat source, and there is no need to start the second combustion chamber 87. The heat energy from the combustion in the first combustion chamber 86 can be used to dry clothes while heating the water for bathroom or heating, making full use of the combustion heat energy and reducing energy consumption. If the first combustion chamber 86 is in a extinguished state, it means that there is no need for hot water for bathroom or heating. At this time, the second combustion chamber 87 is started and used as the drying heat source, avoiding energy waste caused by using the first combustion chamber 86. The heat energy generated by the combustion in the second combustion chamber 87 is only used for drying, which can make full use of the heat energy generated by combustion.

[0050] The first temperature and humidity sensor 91 and the second temperature sensor can monitor the temperature and humidity changes during the drying process. Based on the first temperature and humidity detected by the first temperature and humidity sensor 91 and the second temperature and humidity detected by the second temperature and humidity sensor 92, the drying program can be controlled to enter different drying stages, with different drying parameters for each stage. By combining temperature and humidity, the degree of dryness of the fabric can be truly reflected. Adjusting the drying parameters accordingly helps save drying time and energy, and avoids over-drying that could damage the fabric and waste energy.

[0051] The maximum power of the first combustion chamber 86 and the maximum power of the second combustion chamber 87 can be the same or different. For example, the maximum power of the second combustion chamber 87 can be less than the maximum power of the first combustion chamber 86.

[0052] Drying parameters may include one or more of the following: the rotational speed of the drum 40, the rotational speed of the exhaust device 20, and the output power of the combustion chamber.

[0053] In some embodiments, the drying process can be divided into multiple stages, each with different parameters. The drying program can be controlled to enter different drying stages based on the first temperature and humidity and the second temperature and humidity, so that the drying parameters are more suitable for the current drying requirements.

[0054] In some embodiments, the drying stage includes a heating stage, a constant-speed drying stage, a deceleration drying stage, and a cold air blowing stage. In the heating stage, the drum 40 rotates at a first speed. In the constant-speed drying stage, the drum 40 rotates at a second speed. In the deceleration drying stage, the drum 40 rotates at a third speed. In the cold air blowing stage, the drum 40 rotates at a fourth speed. The second speed is lower than the first speed, and the third and fourth speeds are lower than the second speed. The third and fourth speeds may be the same or different.

[0055] In this embodiment of the invention, the drying process can be divided into four stages based on changes in temperature and humidity: a heating stage, a constant-speed drying stage, a decreasing-speed drying stage, and a cold-air blowing stage. Parameters such as combustion power, drum 40 rotation speed, and exhaust device 20 wind speed are adjusted in stages according to temperature and humidity signals, which helps save drying time and energy consumption and improves the post-drying performance of the fabric. This embodiment of the invention utilizes a first temperature and humidity sensor 91 in the exhaust port and a second temperature and humidity sensor 92 at the air inlet of the drum 40 to monitor the equilibrium moisture content in the environment, using this as the basis for stopping the drying process. This results in smoother garments, less fiber damage, and saves both time and energy.

[0056] Under the condition that the load of clothes being dried, the size of the drum 40, and the temperature remain constant, the drying time is inversely proportional to the rotation speed of the drum 40; that is, the higher the rotation speed, the faster the drying rate. Therefore, in the heating stage, in order to fully scatter the clothes and increase the exchange area between the clothes and the drying airflow, a high rotation speed is used for the drum 40. In the constant-speed drying stage, the moisture content of the clothes decreases and their mass decreases, so a medium rotation speed is used for the drum 40. In the deceleration drying stage and the cold air blowing stage, the mass of the clothes is even smaller, so the rotation speed of the drum 40 used in these two stages should be slightly lower than that in the constant-speed drying stage.

[0057] In some embodiments, the first rotational speed ranges from 52 rpm to 58 rpm; the second rotational speed ranges from 45 rpm to 50 rpm; and the third and fourth rotational speeds range from 42 rpm to 48 rpm. During the heating phase, the rotational speed of the drum 40 is between 52 rpm and 58 rpm, which can fully scatter the clothes and increase the exchange area between the clothes and the drying airflow. The drum 40 uses a high rotational speed. During the constant-speed drying phase, the moisture content of the clothes decreases and their mass decreases. The rotational speed of the drum 40 is between 45 rpm and 50 rpm, which ensures that the clothes are fully scattered while reducing power output, lowering energy consumption, and promoting the smoothing of the clothes. During the deceleration drying phase and the cold air blowing phase, the mass of the clothes is even smaller. Therefore, the rotational speed of the drum 40 used in these two phases should be slightly lower than that in the constant-speed drying phase, specifically between 42 rpm and 48 rpm, to ensure that the clothes are fully scattered while further reducing power output, lowering energy consumption, and promoting the smoothing of the clothes.

[0058] In some embodiments, during the heating and deceleration drying phases, the exhaust device 20 provides a first air velocity; during the constant-speed drying and cold air blowing phases, the exhaust device 20 provides a second air velocity, which is higher than the first air velocity.

[0059] The air velocity provided by the exhaust device 20 affects the residence time of the drying airflow within the cavity, thus impacting the drying efficiency of the clothes. The time that the hot dry air remains within the drum 40 is equal to the quotient of the volume of the drum 40 divided by the speed of the air driven by the exhaust device 20. The hot dry air should remain within the drum 40 for an appropriate duration; excessively high or low air velocity in the exhaust device 20 is detrimental to improving drying efficiency.

[0060] In this embodiment of the invention, during the heating stage and the deceleration drying stage, the exhaust device 20 can use a low wind speed to ensure that the hot dry air has sufficient contact with the fabric, ensure the high moisture content of the exhaust gas, and improve energy efficiency; while during the constant speed drying stage and the cold air blowing stage, the exhaust device 20 can use a higher wind speed to discharge the more humid gas in a timely manner and save drying time.

[0061] In some embodiments, when the second combustion chamber 87 is used as the drying heat source, the second combustion chamber 87 adopts the first combustion setting during the heating stage; the second combustion chamber 87 adopts the second combustion setting during the constant speed drying stage; the second combustion chamber 87 adopts the third combustion setting during the deceleration drying stage; and the second combustion chamber 87 is shut down and stops working during the cold air blowing stage; the heat provided by the first combustion setting, the second combustion setting, and the third combustion setting decreases sequentially.

[0062] See Figure 2 The second combustion chamber 87 has a drying burner 84. To facilitate rapid heating and drying of the fabric, the drying burner 84 uses different heat levels to provide different amounts of heat at different stages of the drying process. The higher the heat level, the more heat is provided. During the heating phase, the drying burner 84 is set to high heat, combined with the low fan speed of the exhaust device 20, ensuring sufficient contact between the hot, dry air inside the drum 40 and the fabric, guaranteeing rapid heating in a short time. During the constant-speed drying phase, the drying burner 84 is set to medium heat, again combined with the low fan speed of the exhaust device 20, ensuring sufficient contact between the hot, dry air inside the drum 40 and the fabric, guaranteeing continuous drying within the effective time. During the deceleration drying phase, the drying burner 84 is set to low heat, combined with the medium fan speed of the exhaust device 20, ensuring that the clothes are not overheated and damaged. During the cooling phase, the drying burner 84 is turned off and stops working, combined with the high fan speed of the exhaust device 20, quickly expelling the humid air and cooling the clothes, saving time.

[0063] In some embodiments, the drum 40 rotates alternately in both forward and reverse directions during the four stages of drying. This alternating rotation of the drum 40 allows for greater dispersion of the clothes, improving drying efficiency, uniformity, and the smoothness of the dried garments, while reducing energy consumption. The ratio of the drum 40's forward to reverse rotation can be set to 1:1. The drum 40 must stop rotating during these alternating cycles; the rotation frequency, or rhythm, can be, for example, 15 / 5 (15 seconds of rotation followed by 5 seconds of rest). In specific implementations, the drum 40 may rotate forward for 15 seconds, stop for 5 seconds, then reverse for 15 seconds, stop for 5 seconds, and so on, in a cyclical manner.

[0064] In some embodiments, see Figure 2 The gas-fired hot water heating clothes dryer also includes a condenser exchanger 62 and a water pump 69. The condenser exchanger 62 is located on the first combustion exhaust passage. The water pump 69 has seven ports, of which the first port is the bathroom water inlet 63, the second port is the heating return water inlet 65, the third port is the water outlet, which is connected to the condenser exchanger 62 through a water pipe, the fourth port is connected to the expansion tank 70, the fifth port is equipped with an exhaust valve 71 for venting air and draining water, the sixth port is equipped with a heating safety pressure relief valve 72, and the seventh port is the water pump drain port 74, which is used to discharge impurities and dirt generated by the water pump 69 during operation.

[0065] The water pump 69 has seven ports. The first port is the bathroom inlet 63, which connects to the water inlet circuit. The second port is the heating return port 65. The third port is the outlet, which is connected to the condenser 62 via a water pipe. The fourth port is connected to the expansion tank 70, which mainly maintains the pressure stability of the internal water system. The fifth port of the water pump 69 has an air vent valve 71, which is mainly used to remove air and drain water from the internal water system to ensure smooth flow of hot water. When the pressure in the system is too high, the air vent valve 71 can also release pressure to protect the safety of the entire system. The sixth port of the water pump 69 has a heating safety pressure relief valve 72, which is a safety protection valve that mainly protects the pressure of the internal system. When the pressure is too high, the valve will automatically open to release the excessive pressure and protect the safe operation of the heating system. The seventh port of the water pump 69 has a water pump drain port 74, which is mainly used to discharge impurities and contaminants such as air and rust generated by the water pump 69 during long-term operation, thus preventing the water pump 69 from malfunctioning.

[0066] In some embodiments, the method of the present invention further includes: adjusting the rotation speed of the water pump 69 according to the ambient water pressure to ensure that the water supply pressure is within a set range. Under the action of the water pump 69, the rotation speed of the water pump 69 is adjusted according to the user's ambient water pressure to ensure the overall water supply pressure and resolve sudden temperature fluctuations. A pressure sensor 54 is installed at the water outlet end of the water pipe to monitor the outlet pressure in real time, preventing excessively high or low water pressure. The water pump 69 can control the water supply pressure within a set range.

[0067] The water inlet is equipped with a bathroom water inlet valve 64, and one end of the water inlet is a bathroom water inlet 63. The outlet of the water pump 69 is connected to the condenser exchanger 62 to form a preheating water circuit. Preheating is carried out through the condenser exchanger 62, which can make full use of the heat generated by combustion and save energy.

[0068] The other end of the condenser 62 is connected to the condensate collection box 60 via a water pipe. The condenser 62 mainly serves as a preheater for hot water supply, thereby reducing energy consumption. The condensate collection box 60 mainly collects the condensate generated during the preheating stage. One end of the condensate collection box 60 has a condensate outlet 59 for easy condensate drainage, while the other end has a condensate box cleaning port 61 for easy cleaning of impurities accumulated in the condensate over time. A preheated hot water pipe extending from inside the condenser 62 is wrapped around the outside of the first combustion chamber 86 for a certain length. This outer wrapping water pipe in the first combustion chamber 86 mainly serves as the main heating element. A main water temperature controller 55 is installed on the hot water end of the outer wrapping water pipe for monitoring and preventing [heating issues]. The heating temperature is too high; a pressure sensor 54 is installed at one end of the water outlet of the outer ring water pipe to monitor and prevent the water pressure from being too high, and a three-way valve 53 is connected to the other end of the pressure sensor 54. The main function of the three-way valve 53 is water circuit control. The first water circuit is the bathroom hot water supply system, which is equipped with: bathroom outlet water temperature sensor 52, bathroom outlet valve 51, and bathroom outlet 50. The bathroom outlet water temperature sensor 52 monitors in real time to meet the temperature requirements of the bathroom outlet water. The second water circuit is the heating system control, which is equipped with: heating outlet water temperature sensor 56, heating outlet valve 57 (57), and heating outlet 58. The heating outlet water temperature sensor 56 monitors in real time to meet the heating temperature requirements.

[0069] The heating system and the bathroom hot water supply system share a combustion hot water system. The return water pipe is connected to the water pump 69, and one end of the return water pipe is the heating return water inlet 65. The return water pipe is equipped with a magnetic filter 66, a heating return water valve 67, and a heating return water temperature sensor 68, thus forming an independent return water circuit for heating. The magnetic filter 66 filters impurities in the heating return water to ensure water quality. It is connected to the second port inlet of the water pump 69 to form an independent return water circuit for heating. After entering the water pump 69, the combustion system for heating and the combustion system for bathroom hot water supply are shared. Finally, under the action of the three-way valve 53, the water enters the control of the second heating system, which is equipped with a heating outlet water temperature sensor 56, a heating outlet water valve 57, and a heating outlet water inlet 58. The heating outlet water temperature sensor 56 monitors in real time to meet the heating temperature requirements. At the same time, an indoor thermostat 79 is installed inside the equipment to monitor changes in indoor ambient temperature. The indoor thermostat 79 can adjust the heating supply according to changes in ambient temperature.

[0070] In some embodiments, the method of the present invention further includes: if the first combustion chamber 86 is shut down and stops working during the drying process using the first combustion chamber 86 as the drying heat source, then the second combustion chamber 87 is started and used as the drying heat source. During the drying process using the first combustion chamber 86 as the drying heat source, if the first combustion chamber 86 is shut down and stops working due to reasons such as the end of its operation, the second combustion chamber 87 is started to ensure uninterrupted drying. For example, when the first combustion chamber 86 is started for washing, drying is performed simultaneously. If the washing ends but the drying process is not yet complete, the second combustion chamber 87 can be activated to continue the drying process and avoid interruption.

[0071] When the second combustion chamber 87 operates independently, the first combustion chamber 86 stops working: An external gas source is connected through the gas inlet 75. The external gas, after being filtered by the gas filter 76, enters the gas proportional valve 77, while the other end connects to a gas pipe leading to the first solenoid valve 78, which is the main intake control valve. At this time, the second solenoid valve 80 closes its passage, and the first combustion chamber 86 does not operate. Meanwhile, the third solenoid valve 83 opens its passage, and the external gas enters the dry-clothes burner 84 in the second combustion chamber 87 through the gas pipe. Under the ignition action of the second ignition needle 85, combustion occurs, producing… The hot air passes above the second combustion chamber 87 and enters the common combustion chamber exhaust passage 88, which leads directly to the drum air intake passage 89. Finally, it enters the drum 40 through the air intake passage hole 891 of the drum air intake passage 89. The clothes are dried by the air heated by the combustion of gas. The moisture in the clothes is heated and turns into water vapor. Under the action of the exhaust device 20, it is finally filtered through the three layers of the lint collector 30 and then discharged from the cavity through the exhaust pipe 10. The water in the bathroom water supply circuit is not heated. Therefore, the pressure in the water pipe will not increase, thereby avoiding environmental safety hazards for users.

[0072] When the first combustion chamber 86 operates independently, the second combustion chamber 87 is not activated: the external gas source is connected through the gas inlet 75, the external gas passes through the gas filter 76, and after filtration, it enters the gas proportional valve 77, while the other end is connected to the gas pipe and enters the first intake solenoid valve 78, which is the main control switch valve; at this time, the second solenoid valve 80 opens the channel, while the third solenoid valve 83 closes the channel, so the external gas enters the hot water burner 81 in the hot water heating gas system through the gas pipe, and the gas is burned under the ignition action of the first ignition needle 82. The generated hot gas enters the common combustion chamber exhaust channel 88 above the first combustion chamber 86, directly through the drum air inlet channel 89, and finally enters the drum 40 through the air inlet hole 891 on the drum air inlet channel 89. The clothes are dried by the air heated by the gas combustion. The moisture in the clothes is heated and turns into water vapor. Under the action of the exhaust device 20, it finally passes through the three layers of filtration of the lint collector 30 and is then discharged from the cavity through the exhaust pipe 10.

[0073] Meanwhile, the heat generated during combustion in the first combustion chamber 86 is used to heat the water coming in from outside through the heat exchange function, thereby achieving the function of supplying hot water and heating. A three-way valve 53 is installed between the water pipes, and the three-way valve 53 supplies water to two circuits. Each water circuit is equipped with a bathroom outlet water temperature sensor 52 and a heating outlet water temperature sensor 56, which are mainly used to accurately control the water temperature to meet the user's temperature requirements.

[0074] See Figure 2 and Figure 3 During the drying process, multiple ventilation holes are provided at the rear end of the drum 40. These ventilation holes are connected to the exhaust device 20 and eventually lead to the exhaust pipe 10. After the exhaust device 20 is started, the centrifugal force generated during the combustion process causes the residual heat air to be filtered through the three layers of the lint collector 30. At this time, the lint residue generated during the drying process is collected in the lint collector 30, and the relatively clean humid air from the drying process is finally discharged outside the cavity through the exhaust pipe 10. The front end of the drum 40 is equipped with a second temperature and humidity sensor 92, which mainly monitors the drying temperature and humidity of the clothes in the drum 40 in real time, thereby appropriately adjusting the exhaust device 20 and the rotation speed of the drum 40 to prevent deformation and damage to the clothes caused by excessively high temperature.

[0075] While using indoor heating or taking a shower, the clothes drying function can be activated simultaneously. The hot air generated during the heating or bathroom water use is recovered and reused, entering the dryer drum 40 to dry the clothes. Therefore, with the first combustion chamber 86 as the main component, it can not only realize the functions of bathroom water and heating supply, but also realize the function of drying clothes with the heat generated by combustion. This saves energy consumption and operating costs required for drying clothes and improves efficiency, truly achieving energy conservation and emission reduction.

[0076] The embodiments of the present invention realize three different functions: hot water, heating and drying; replacing the existing three-function products of water heater, wall-hung boiler and dryer, therefore, it is more practical and has lower operating costs than the existing products.

[0077] This invention provides a control device for a gas-fired hot water heating clothes dryer, see [link / reference]. Figure 2The gas-fired hot water heating clothes dryer includes a drum 40, a first combustion chamber 86, a second combustion chamber 87, an exhaust device 20, a first temperature and humidity sensor 91, and a second temperature and humidity sensor 92. The exhaust device 20 is located at the exhaust end of the drum 40, which is connected to an exhaust channel. The first temperature and humidity sensor 91 is located inside the exhaust channel, and the second temperature and humidity sensor 92 is located at the air inlet end of the drum 40. The first combustion chamber 86 is connected to the air inlet of the drum 40 through a first combustion exhaust channel, and the second combustion chamber 87 is connected to the air inlet of the drum 40 through a second combustion exhaust channel. The first combustion chamber 86 is used to provide heating hot water and bathroom hot water.

[0078] See Figure 4 The gas-fired hot water heating clothes dryer control device of this invention includes a program module, a combustion control module, and a drying module. The program module is used to obtain the state of the first combustion chamber 86 based on receiving a drying program start command. The combustion control module is used to, if the first combustion chamber 86 is in the working state, use the first combustion chamber 86 as the drying heat source; if the first combustion chamber 86 is in the off state, start the second combustion chamber 87 and use the second combustion chamber 87 as the drying heat source. The drying module is used to obtain the first temperature and humidity detected by the first temperature and humidity sensor 91 and the second temperature and humidity detected by the second temperature and humidity sensor 92; and to control the drying program to enter different drying stages according to the first temperature and humidity and the second temperature and humidity, with different drying parameters in different drying stages.

[0079] The gas-fired hot water heating clothes dryer control device of this invention can implement the methods of the above embodiments, and the descriptions of the above method embodiments can be used to understand and explain the device of this invention. For the purpose of brevity and saving space, they will not be repeated here.

[0080] According to embodiments of the present invention, the present invention also provides a gas-fired hot water heating clothes dryer and a readable storage medium.

[0081] Gas-fired hot water heating clothes dryer includes controller 400. Figure 5 A schematic block diagram of a controller 400 for an example gas-fired hot water heating and drying machine that can be used to implement embodiments of the present invention is shown. The controller 400 is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. Electronic devices may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0082] like Figure 5As shown, the controller 400 includes a computing unit 401, which can perform various appropriate actions and processes based on a computer program stored in a read-only memory (ROM) 402 or a computer program loaded from a storage unit 408 into a random access memory (RAM) 403. The RAM 403 may also store various programs and data required for the operation of the controller 400. The computing unit 401, ROM 402, and RAM 403 are interconnected via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0083] Multiple components in the controller 400 are connected to the I / O interface 405, including: an input unit 406, such as a keyboard, mouse, etc.; an output unit 407, such as various types of displays, speakers, etc.; a storage unit 408, such as a disk, optical disk, etc.; and a communication unit 409, such as a network card, modem, wireless transceiver, etc. The communication unit 409 allows the controller 400 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0084] The computing unit 401 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the computing unit 401 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 401 performs the various methods and processes described above, such as the gas-fired hot water heating clothes dryer control method. For example, in some embodiments, the gas-fired hot water heating clothes dryer control method can be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as storage unit 408. In some embodiments, part or all of the computer program can be loaded and / or installed on the controller 400 via ROM 402 and / or communication unit 409. When the computer program is loaded into RAM 403 and executed by the computing unit 401, one or more steps of the gas-fired hot water heating clothes dryer control method described above can be performed. Alternatively, in other embodiments, the computing unit 401 may be configured to perform a gas-fired hot water heating clothes dryer control method by any other suitable means (e.g., by means of firmware).

[0085] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), system-on-a-chip (SoCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and information from a storage system, at least one input device, and at least one output device, and transmitting data and information to the storage system, the at least one input device, and the at least one output device.

[0086] The program code used to implement the methods of the present invention can be written in any combination of one or more programming languages. This program code can be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing device, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code can be executed entirely on the machine, partially on the machine, as a standalone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0087] In the context of this invention, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an information execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0088] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0089] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with embodiments of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0090] Computer systems can include clients and servers. Clients and servers are generally located far apart and typically interact via communication networks. Client-server relationships are created by computer programs running on the respective computers and having a client-server relationship with each other. Servers can be cloud servers, servers in distributed systems, or servers incorporating blockchain technology.

[0091] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this invention can be achieved, and this is not limited herein.

[0092] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0093] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A control method for a gas-fired hot water heating clothes dryer, characterized in that, A gas-fired hot water heating clothes dryer includes a drum (40), a first combustion chamber (86), a second combustion chamber (87), an exhaust device (20), a first temperature and humidity sensor (91), and a second temperature and humidity sensor (92). The exhaust device (20) is located at the exhaust end of the drum (40), and the exhaust end of the drum (40) is connected to an exhaust channel. The first temperature and humidity sensor (91) is located in the exhaust channel, and the second temperature and humidity sensor (92) is located at the air inlet end of the drum (40). The first combustion chamber (86) is connected to the air inlet of the drum (40) through the first combustion exhaust channel, and the second combustion chamber (87) is connected to the air inlet of the drum (40) through the second combustion exhaust channel. The first combustion chamber (86) is used to provide heating hot water and bathroom hot water. The method includes: Based on the received drying program start command, the state of the first combustion chamber (86) is obtained; If the first combustion chamber (86) is in operation, then the first combustion chamber (86) is used as the drying heat source; If the first combustion chamber (86) is in the off state, the second combustion chamber (87) is started and used as the drying heat source; Acquire the first temperature and humidity detected by the first temperature and humidity sensor (91) and the second temperature and humidity detected by the second temperature and humidity sensor (92); The drying program enters different drying stages based on the first temperature and humidity and the second temperature and humidity, and the drying parameters are different in different drying stages.

2. The method according to claim 1, characterized in that, The drying stage includes a heating stage, a constant speed drying stage, a deceleration drying stage, and a cold air blowing stage. In the heating stage, the drum (40) rotates at a first speed. In the constant speed drying stage, the drum (40) rotates at a second speed. In the deceleration drying stage, the drum (40) rotates at a third speed. In the cold air blowing stage, the drum (40) rotates at a fourth speed. The second speed is lower than the first speed, and the third and fourth speeds are lower than the second speed. The third and fourth speeds may be the same as or different from each other.

3. The method according to claim 2, characterized in that, The first speed ranges from 52 rpm to 58 rpm; the second speed ranges from 45 rpm to 50 rpm; and the third and fourth speeds range from 42 rpm to 48 rpm.

4. The method according to claim 2, characterized in that, During the heating phase and the deceleration drying phase, the exhaust device (20) provides a first wind speed; during the constant speed drying phase and the cold air blowing phase, the exhaust device (20) provides a second wind speed, which is higher than the first wind speed.

5. The method according to claim 2, characterized in that, When the second combustion chamber (87) is used as the drying heat source, during the heating stage, the second combustion chamber (87) adopts the first combustion setting; during the constant speed drying stage, the second combustion chamber (87) adopts the second combustion setting; during the deceleration drying stage, the second combustion chamber (87) adopts the third combustion setting; during the cold air blowing stage, the second combustion chamber (87) is shut off and stops working; the heat provided by the first combustion setting, the second combustion setting, and the third combustion setting decreases sequentially.

6. The method according to claim 2, characterized in that, During the four stages of drying, the drum (40) rotates in alternating forward and reverse directions.

7. The method according to claim 1, characterized in that, The gas-fired hot water heating clothes dryer also includes a condenser (62) and a water pump (69). The condenser (62) is located on the first combustion exhaust channel. The water pump (69) has seven ports, of which the first port is a bathroom water inlet (63), the second port is a heating return water inlet (65), the third port is a water outlet connected to the condenser (62) through a water pipe, the fourth port is connected to an expansion tank (70), the fifth port is equipped with an exhaust valve (71) for venting air and draining water, the sixth port is equipped with a heating safety pressure relief valve (72), and the seventh port is a water pump drain port (74) for discharging impurities and dirt generated by the water pump (69) during operation. The method further includes: Adjust the speed of the water pump (69) according to the ambient water pressure so that the water supply pressure is within the set range.

8. The method according to claim 1, characterized in that, Also includes: If the first combustion chamber (86) is shut down and stops working during the drying process, the second combustion chamber (87) is started and used as the drying heat source.

9. A control device for a gas-fired hot water heating clothes dryer, characterized in that, The gas-fired hot water heating clothes dryer includes a drum (40), a first combustion chamber (86), a second combustion chamber (87), an exhaust device (20), a first temperature and humidity sensor (91), and a second temperature and humidity sensor (92). The exhaust device (20) is located at the exhaust end of the drum (40), and the exhaust end of the drum (40) is connected to an exhaust channel. The first temperature and humidity sensor (91) is located in the exhaust channel, and the second temperature and humidity sensor (92) is located at the air inlet end of the drum (40). The first combustion chamber (86) is connected to the air inlet of the drum (40) through the first combustion exhaust channel, and the second combustion chamber (87) is connected to the air inlet of the drum (40) through the second combustion exhaust channel. The first combustion chamber (86) is used to provide heating hot water and bathroom hot water. The device includes: The program module is used to obtain the status of the first combustion chamber (86) based on the received drying program start command; The combustion control module, if the first combustion chamber (86) is in working state, uses the first combustion chamber (86) as the drying heat source; if the first combustion chamber (86) is in extinguished state, it starts the second combustion chamber (87) and uses the second combustion chamber (87) as the drying heat source. The drying module is used to acquire the first temperature and humidity detected by the first temperature and humidity sensor (91) and the second temperature and humidity detected by the second temperature and humidity sensor (92); and to control the drying program to enter different drying stages according to the first temperature and humidity and the second temperature and humidity, with different drying parameters for different drying stages.

10. A gas-fired hot water heating clothes dryer, characterized in that, include: At least one processor; as well as A memory communicatively connected to the at least one processor; wherein, The memory stores information that can be executed by the at least one processor, the information being executed by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-8.

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