A steam heating control method and heating system thereof

Abstract

The present invention relates to the technical field of kitchen appliances, and in particular to a steam heating control method and a heating system thereof. The present invention provides a steam heating control method, comprising the following steps: a first step, adding a certain amount of working liquid into an evaporating device, wherein the boiling point of the working liquid is lower than the maximum temperature of the evaporating device; a second step, the evaporating device heats the working liquid and converts it into a gaseous state to heat the heated article; a third step, in a working state, when the working liquid in the evaporating device is sufficient, detecting and recording the temperature of the evaporating disk in the evaporating device as A; detecting the temperature of the evaporating disk in the evaporating device in real time, and when the temperature of the evaporating disk in the evaporating device exceeds A, replenishing the working liquid into the evaporating device. A heating system is used to implement the above-mentioned steam heating control method. The use of temperature detection can avoid the interference of oil stains on mechanical detection components, and the stability of detection work is significantly improved compared with the existing water level-float type.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to a steam heating control method and a heating system thereof. Background Art

[0002] Kitchen appliances such as steamers, steam-bake machines, steam-microwave machines, and oven-steam-microwave machines are all cooking devices that use water to heat steam, and then use the steam to heat food. They are widely used because of their beautiful appearance, small footprint, energy saving, and large capacity.

[0003] There are two common types of steam heating systems for existing cooking equipment such as steamers / all-in-one machines:

[0004] One is a built-in steam heating system: a quantitative pump draws water from a liquid storage tank into a water level detection device through a pipeline, and a detection component for detecting high and low water levels is provided in the water level detection device; the water level detection device is connected to the evaporation device through a pipeline; after the evaporation device has been working for a period of time, the water in the evaporation device continues to decrease, and when the water in the evaporation device drops to the low water level of the water level detection device, the detection component in the water level detection device detects it and feeds back a signal to the control system, and the control system notifies the quantitative pump to pump water;

[0005] One is an external steam heating system: a quantitative pump draws water in a liquid storage tank into a water level detection device through a pipeline, and a detection component for detecting high and low water levels is provided in the water level detection device; the water level detection device is connected to an external steam generator through a pipeline; the external steam generator is installed outside the cooking cavity; the steam outlet of the external steam generator is connected to the inside of the cavity through a pipeline; after the external steam generator has worked for a period of time, the water in the evaporation device continues to decrease, and when the water in the external steam generator drops to the low water level of the water level detection device, the detection component in the water level detection device detects it and feeds back a signal to the control system, and the control system notifies the quantitative pump to pump water.

[0006] The steam heating system of existing cooking equipment such as steamers / all-in-one machines has a complex structure and high manufacturing cost. After long-term use, oil and dirt enter the water level detection component through the water inlet pipe of the evaporator. The oil and dirt are easy to stick to the float and cannot accurately feedback the water level information, affecting the automatic water replenishment process. Summary of the invention

[0007] (I) The technical problem to be solved by the present invention is that the fumes from the food in the steamer / all-in-one machine will come into contact with the water level detection component through the steam pipeline, affecting the detection structure of the water level detection component, thereby causing the water replenishment process to fail to proceed normally.

[0008] (II) Technical solution

[0009] In order to solve the above technical problems, the present invention provides a steam heating control method, comprising the following steps:

[0010] The first step is to add a certain amount of working liquid into the evaporation device, wherein the boiling point of the working liquid is lower than the maximum temperature of the evaporation device;

[0011] In the second step, the evaporator heats the working liquid and converts it into gas to heat the object to be heated;

[0012] The third step is to detect and record the temperature of the evaporating disk in the evaporating device as A when the working liquid in the evaporating device is sufficient under the working state; detect the temperature of the evaporating disk in the evaporating device in real time, and when the temperature of the evaporating disk in the evaporating device reaches A+B, add working liquid to the evaporating device, where B is greater than 0.

[0013] In an optional embodiment, a safety protrusion is provided in the evaporation disk of the evaporation device;

[0014] When the working liquid is sufficient, the working liquid submerges the safety protrusion; as the evaporation process continues, the working liquid gradually decreases, and the top of the safety protrusion first protrudes out of the liquid level of the working liquid, and the temperature of the top of the safety protrusion is detected.

[0015] In an optional embodiment, the evaporation device has different working gears;

[0016] In the third step, under different working gears, the temperatures of the evaporator are A1, A2...An, and the critical temperatures for replenishing liquid to the evaporator are A1+B1, A2+B2...An+Bn.

[0017] In an optional implementation, in the first step and / or the third step, a metering pump is used to replenish the working fluid, and the replenishment amount of the working fluid is regulated by controlling the operation time of the metering pump.

[0018] In an optional implementation, the temperature of the evaporation disk in the evaporation device is detected in real time, and when the temperature of the evaporation device reaches A+C, the evaporation device stops working, where C is greater than B.

[0019] In an optional embodiment, when the temperature of the evaporation device reaches C, timing is performed;

[0020] Case 1: Within t1, after the temperature of the evaporation device is detected to be lower than A+C, the timing ends;

[0021] In case 2, when the temperature of the evaporation device is continuously higher than A+C, the timing continues, and when the timing duration reaches t1, the evaporation device is shut down.

[0022] A heating system for implementing the above-mentioned heating control method comprises: a liquid replenishing component, a heating component, a temperature detection component and a controller;

[0023] The liquid replenishing component inputs working liquid into the heating component;

[0024] The heating component heats the working liquid to a gaseous state, thereby heating the object to be heated;

[0025] The temperature detection component detects the temperature of the heating component;

[0026] The fluid replenishment component, the heating component and the temperature detection component are electrically connected to the controller; the controller controls whether the fluid replenishment component performs a water replenishment operation according to the temperature information fed back by the temperature detection component.

[0027] In an optional embodiment, the heating assembly includes a storage tray X and a heater X;

[0028] The bottom of the storage tray X is provided with a protrusion and a groove. When the liquid level of the working liquid is lower than the protrusion, the working liquid can still be stored in the groove.

[0029] The temperature detection component detects the temperature of the top of the protrusion, and the heater X is arranged at the bottom of the storage tray X and is electrically connected to the controller.

[0030] In an optional embodiment, the bottom surface of the storage tray X is an upwardly convex curved surface or angular surface, and the central axis of the bottom surface of the storage tray X coincides with the central axis of the side wall of the storage tray X.

[0031] In an optional embodiment, the shape of the top surface of the heater X and the shape of the bottom surface of the storage tray X are consistent with each other.

[0032] In an optional embodiment, the heating assembly includes a storage tray Y and a heater Y;

[0033] The heater Y is arranged at the bottom of the storage tray Y and is electrically connected to the controller. The temperature detection component detects the temperature of the side wall of the storage tray Y 1-3 mm above the bottom surface.

[0034] In an optional embodiment, the heating assembly includes a storage tray Z and a heater Z;

[0035] The heater Z is arranged on the side of the storage tray Z, and the temperature detection component detects the temperature of the connection between the side wall of the storage tray Z and the heater Z.

[0036] In an optional embodiment, the fluid infusion assembly includes a fluid storage tank, a quantitative pump and a timer;

[0037] The working liquid is stored in the liquid storage tank, and the liquid storage tank is connected to the heating component pipeline;

[0038] The metering pump inputs the working fluid in the liquid storage tank into the heating component, the metering pump is electrically connected to the controller, and the controller controls the on / off state of the metering pump;

[0039] A timer is electrically connected to the controller, and the controller controls the operation duration of the metering pump according to time information provided by the timer.

[0040] In an optional embodiment, the working liquid is water or an aqueous solution.

[0041] Beneficial effects of the present invention:

[0042] The present invention provides a steam heating control method, comprising the following steps:

[0043] The first step is to add a certain amount of working liquid into the evaporation device, wherein the boiling point of the working liquid is lower than the maximum temperature of the evaporation device;

[0044] In the second step, the evaporator heats the working liquid and converts it into gas to heat the object to be heated;

[0045] The third step is, in the working state, when the working liquid in the evaporation device is sufficient, the temperature of the evaporation disk in the evaporation device is detected and recorded as A; the temperature of the evaporation disk in the evaporation device is detected in real time, and when the temperature of the evaporation disk in the evaporation device reaches A+B, the working liquid is added to the evaporation device;

[0046] Before the working liquid in the evaporator is exhausted, the working liquid is in close contact with the bottom of the evaporator, which is equivalent to a distance of zero. Therefore, the temperature of the inner wall of the bottom of the evaporator is slightly higher than the boiling point of the working liquid. The evaporator is made of materials with good thermal conductivity and is thin. The temperature of the outer wall of the bottom of the evaporator is stably maintained at the boiling point of the working liquid + 5 to 10°C. When the bottom of the evaporator is not covered with working liquid, the temperature of the bottom of the evaporator will quickly rise to the working temperature of the heating element of the evaporator. By detecting the temperature change outside the evaporator, it can be accurately determined whether the evaporator is lacking water. The use of temperature detection can avoid the interference of oil stains on mechanical detection components, and the stability of the detection work is significantly improved compared with the existing water level-float type. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 A schematic diagram of the three-dimensional structure of a heating system provided by an embodiment of the present invention;

[0049] Figure 2 A schematic diagram of the structure of a heating assembly provided by one embodiment of the present invention when viewed from above;

[0050] Figure 3 A schematic diagram of the side cross-sectional structure of a heating assembly provided in one embodiment of the present invention.

[0051] Icons: 1- fluid replenishment component; 11- fluid storage tank; 12- metering pump;

[0052] 2-heating component; 21-storage tray X; 22-heater X;

[0053] 3-temperature detection component; 31-temperature sensor; 32-temperature controller;

[0054] 4- Controller;

[0055] 5- Working chamber. DETAILED DESCRIPTION

[0056] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0057] like Figures 1 to 3 As shown, one embodiment of the present invention provides a steam heating control method, comprising the following steps:

[0058] The first step is to add a certain amount of working liquid into the evaporation device, wherein the boiling point of the working liquid is lower than the maximum temperature of the evaporation device;

[0059] In the second step, the evaporator heats the working liquid and converts it into gas to heat the object to be heated;

[0060] The third step is to detect and record the temperature of the evaporating disk in the evaporating device as A when the working liquid in the evaporating device is sufficient under the working state; detect the temperature of the evaporating disk in the evaporating device in real time, and when the temperature of the evaporating disk in the evaporating device reaches A+B, add working liquid to the evaporating device, where B is greater than 0.

[0061] Before the working liquid in the evaporator is exhausted, the working liquid is in close contact with the bottom of the evaporator, which is equivalent to a distance of zero. When the distance is 0, there is no temperature difference in theory. Because the working liquid continues to boil, the evaporator continues to conduct heat to the working liquid. It can be seen that the temperature of the inner wall at the bottom of the evaporator is greater than the boiling point of the working liquid. Therefore, the temperature of the inner wall at the bottom of the evaporator is slightly greater than the boiling point of the working liquid. The evaporator is made of materials with good thermal conductivity and a thin thickness (usually 0.5-2mm). The temperature of the outer wall at the bottom of the evaporator is stably maintained at the boiling point of the working liquid + 5 to 10°C; when the bottom of the evaporator is not covered with working liquid, the temperature of the bottom of the evaporator will quickly rise to the working temperature of the heating element of the evaporator. By detecting the temperature change outside the evaporator, it can be accurately determined whether the evaporator is lacking water. The use of temperature detection can avoid the interference of oil stains on mechanical detection components, and the stability of the detection work is significantly improved compared with the existing water level-float type.

[0062] As an optional embodiment of the present invention, a safety protrusion is provided in the evaporation disk of the evaporation device;

[0063] When the working liquid is sufficient, the working liquid submerges the safety protrusion; as the evaporation process continues, the working liquid gradually decreases, and the top of the safety protrusion first protrudes out of the liquid level of the working liquid, and the temperature of the top of the safety protrusion is detected.

[0064] As an optional embodiment of the present invention, the evaporation device has different working gears;

[0065] In the third step, under different working gears, the temperatures of the evaporator are A1, A2...An, and the critical temperatures for replenishing liquid to the evaporator are A1+B1, A2+B2...An+Bn.

[0066] The evaporator working power corresponding to A1, A2...An gradually increases. In case 1, in order to reduce costs and simplify the control process, B1, B2...Bn use equal values; in case 2, the greater the evaporation temperature working power, the more drastic the temperature change. In order to avoid misjudgment of detection, the values ​​of B1, B2...Bn increase, that is, when the evaporator operates at a higher power, a higher judgment temperature needs to be detected to trigger the water replenishment process; in case 3, the greater the evaporation temperature working power, the faster the working liquid is consumed, and the more serious the damage to the working liquid after being burned dry. Therefore, it is necessary to perform a faster liquid replenishment operation for the evaporation in the high-power state. At this time, the values ​​of B1, B2...Bn decrease, so as to trigger the water replenishment process earlier in the high-power state.

[0067] As an optional implementation of the present invention, in the first step and / or the third step, the metering pump 12 is used to replenish the working fluid, and the replenishment amount of the working fluid is regulated by controlling the operation time of the metering pump 12.

[0068] As an optional implementation of the present invention, the temperature of the evaporation disk in the evaporation device is detected in real time. When the temperature of the evaporation device reaches A+C, the evaporation device stops working, wherein C is greater than B.

[0069] As an optional embodiment of the present invention, when the temperature of the evaporation device reaches C, timing is performed;

[0070] Case 1: Within t1, after the temperature of the evaporation device is detected to be lower than A+C, the timing ends;

[0071] In case 2, when the temperature of the evaporation device is continuously higher than A+C, the timing continues, and when the timing duration reaches t1, the evaporation device is shut down.

[0072] A heating system for implementing the above heating control method comprises: a liquid replenishing component 1, a heating component 2, a temperature detection component 3 and a controller 4;

[0073] The liquid replenishing component 1 inputs working liquid into the heating component 2;

[0074] The heating component 2 heats the working liquid to a gaseous state, thereby heating the object to be heated;

[0075] The temperature detection component 3 detects the temperature of the heating component 2;

[0076] The fluid replenishment component 1 , the heating component 2 and the temperature detection component 3 are electrically connected to the controller 4 ; the controller 4 controls whether the fluid replenishment component 1 performs a water replenishment operation according to the temperature information fed back by the temperature detection component 3 .

[0077] As an optional embodiment of the present invention, the heating assembly 2 includes a storage tray X21 and a heater X22;

[0078] The bottom of the storage tray X21 is provided with a protrusion and a groove. When the liquid level of the working liquid is lower than the protrusion, the working liquid can still be stored in the groove.

[0079] The temperature detection component 3 detects the temperature of the top of the protrusion, and the heater X22 is arranged at the bottom of the storage tray X21 and is electrically connected to the controller 4.

[0080] Specifically, the bottom surface of the storage tray X21 is an upwardly protruding arc or prism, and the central axis of the bottom surface of the storage tray X21 coincides with the central axis of the side wall of the storage tray X21; the shape of the top surface of the heater X22 coincides with the shape of the bottom surface of the storage tray X21. The design of the concave bottom surface is adopted, and the bottom surface of the positioning tray X coincides with the heater X22. After the user places the storage tray X21, the storage tray X21 can complete the positioning and alignment under its own gravity, which is more convenient to use; the design of the concave bottom surface of the storage tray X21 also increases the working area of ​​the heater X22 and improves the working efficiency of the heater X22 compared to conventional flat-bottomed competing products; in addition, the central axis of the bottom surface of the tray X coincides with the central axis of the side wall of the storage tray X21, so that the storage tray X21 is heated evenly in the circumferential direction, ensuring that the evaporation work of the heating tray X is more stable.

[0081] As an optional embodiment of the present invention, the fluid infusion assembly 1 includes a fluid storage tank 11, a metering pump 12 and a timer;

[0082] The working liquid is stored in the liquid storage tank 11, and the liquid storage tank 11 is connected to the heating component 2 through a pipeline;

[0083] The metering pump 12 inputs the working fluid in the liquid storage tank 11 into the heating component 2. The metering pump 12 is electrically connected to the controller 4. The controller 4 controls the on / off state of the metering pump 12.

[0084] The timer is electrically connected to the controller 4 , and the controller 4 controls the operation duration of the metering pump 12 according to the time information provided by the timer.

[0085] Specifically, the water replenishment process is as follows (herein, the bottom surface of the storage tray X21 is a concave arc surface for specific description, and is not limited to the use of the concave arc surface. Other shapes based on the same technical concept also belong to the protection scope of the present invention):

[0086] The middle of the bottom surface of the storage tray X21 is the highest, and the height gradually decreases towards the edges. The optimal height difference is 1-3 mm. A temperature sensor 31 is arranged in the middle of the bottom of the storage tray X21, and a thermostat 32 is arranged on each side of the temperature sensor 31.

[0087] When cooking starts, the metering pump 12 draws the working liquid in the liquid storage tank 11 into the storage X of the heating component 2 through the pipeline. At this time, the heater X22 starts to heat. As the temperature rises, the working liquid in the storage plate X21 is heated into a gas state, and then slowly fills the entire cavity. The working liquid in the storage plate X21 slowly decreases. When the water in the storage plate is reduced to the highest arc in the middle of the bottom and slowly emerges, the temperature sensor 31 in the middle of the bottom of the heating plate assembly detects that the temperature at the bottom of the storage plate X21 starts to rise from a stable state. When it rises to a certain value, the signal is fed back to the controller 4 to control The controller 4 notifies the metering pump 12 to pump the working liquid, and then the heater X22 continues to heat the working liquid into a gaseous state, and this process works in a cycle; it continues to work until the working liquid in the liquid storage tank 11 gradually decreases. When the temperature sensor 31 at the middle position of the bottom of the storage tray X21 detects that the temperature begins to rise from a stable state, and the temperature continues to rise to a certain value without a downward trend, the signal is fed back to the controller 4, and the controller 4 notifies the heater X22 to stop working, and the alarm of the lack of working liquid in the liquid storage tank 11 notifies the user that the working liquid in the liquid storage tank 11 has been used up, and the liquid storage tank 11 needs to be supplemented with working liquid from the outside. When the controller 4 of the cooking device fails, the heater X22 continues to work, and the temperature at the middle position of the bottom of the storage tray X21 gradually rises. When the temperature rises to the limit temperature of the thermostat 32, the thermostat 32 is disconnected, and the heater X22 stops working, thereby protecting the storage tray X21.

[0088] The first step is to calculate the maximum water volume V (V = πr 2 h) (the radius r of the storage tray X21 and the height h of the storage tray X21 are known), and then a coefficient η is set (the water will not overflow from the storage tray X21 when the water is boiling, and the coefficient is generally 0.6-0.8), and finally the water volume (highest water level volume) of the storage tray X21 is determined V1=V*η;

[0089] Step 2: Calculate the pumping time t1 of the metering pump 12 each time (the pumping flow rate Q of the pump per minute is known) (t1=V1 / Q);

[0090] Step 3: Heating stage, i.e., heating stage from room temperature to set temperature. When the working liquid is added to the storage tray X21, the metering pump 12 stops; the heater X22 starts to heat. As the heater X22 continues to heat, the water temperature in the storage tray X21 gradually increases, and then the working liquid is heated into a gaseous state. At this time, the temperature of the temperature sensor 31 also gradually increases with the heater X22. The temperature sensor 31 detects the temperature of the storage tray X21 in real time. When the working liquid in the storage tray X21 is heated to a gaseous state, the temperature at the bottom of the storage tray X21 tends to be stable. At this time, the stable temperature T1 of the storage tray X21 is recorded by the temperature sensor 31.

[0091] Step 4: Calculate the water volume of the storage tray X21 from the lowest water level to the highest water level V3 = V1-V2; (V2 is the volume at the lowest water level, i.e. the volume at the critical dry burning state); V2 = πr 2 H-1 / 2*L*r*H (H is the height from the bottom of the storage tray X21 to the middle arc position of the storage tray X21, and L is the length of the arc at the bottom of the storage tray X21);

[0092] Step 5: Calculate the pumping time t2 of the storage tray X21 from the lowest water level to the highest water level (the pumping flow rate Q per minute is known) (t2 = V3 / Q);

[0093] Step 6: The working liquid in the storage tray X21 is gradually reduced. When the water in the storage tray X21 is reduced to the highest arc in the middle of the bottom and slowly exposed, the temperature sensor 31 in the middle of the bottom of the heating component 2 detects that the temperature at the bottom of the storage tray X21 starts to rise from a stable state. When it rises to a certain value, the dry-burning critical temperature T2 of the storage tray X21 is recorded; the signal is fed back to the controller 4, and the controller 4 notifies the quantitative pump 12 to pump the working liquid. This process works in a cycle;

[0094] Step 7: The cooking device continues to work until the working liquid in the liquid storage tank 11 gradually decreases. When the temperature sensor 31 at the middle position of the bottom of the storage tray X21 detects that the temperature of the bottom of the storage tray X21 begins to rise from a stable state, when the temperature continues to rise to the dry-burning critical temperature T2, the signal is fed back to the controller 4. The controller 4 notifies the metering pump 12 to pump the working liquid. The temperature sensor 31 always detects the temperature of the bottom of the storage tray X21 in real time. When the temperature of the bottom of the storage tray X21 continues to rise and exceeds the dry-burning critical temperature T2+10°C and there is no downward trend; the temperature T3 of the storage tray X21 in the state of lack of working liquid is recorded; and the signal is fed back to the controller 4. The controller 4 notifies the heater X22 to stop working, and the water shortage alarm notifies the user that the working liquid in the liquid storage tank 11 has been used up, and the liquid storage tank 11 needs to be replenished with working liquid from the outside again.

[0095] Specifically, after each cooking, the user is usually required to wipe the working cavity 5 and the working plate to keep the working cavity 5 clean and tidy, and to keep the working plate free of residual working liquid (cleaning the working cavity 5 and the working plate after use is a basic operation of using kitchen utensils).

[0096] As an optional embodiment of the present invention, the heating assembly 2 includes a storage tray Y and a heater Y;

[0097] The heater Y is arranged at the bottom of the storage tray Y and is electrically connected to the controller 4 . The temperature detection component 3 detects the temperature of the side wall of the storage tray Y 1-3 mm above the bottom surface.

[0098] Specifically, the bottom surface of the storage tray Y is an outwardly convex arc surface or prism surface, and the central axis of the bottom surface of the storage tray Y coincides with the central axis of the side wall of the storage tray Y; the shape of the top surface of the heater Y coincides with the shape of the bottom surface of the storage tray Y. The temperature detection component 3 is arranged at the bottom of the side wall of the storage tray Y, and when the working fluid in the storage tray Y is about to be consumed, the edge of the bottom of the storage tray Y is exposed first; further, the temperature detection component 3 detects a temperature rise at the bottom of the side wall of the storage tray Y (the overlap between the side wall and the avoidance), and then determines that the storage tray Y is in a water-deficient state, and performs fluid replenishment under the control of the controller 4.

[0099] As an optional embodiment of the present invention, the heating assembly 2 includes a storage tray Z and a heater Z;

[0100] The heater Z is arranged on the side of the storage tray Z, and the temperature detection component 3 detects the temperature of the connection between the side wall of the storage tray Z and the heater Z.

[0101] Specifically, the heater Z is at least arranged on the side of the storage tray Z, and the temperature detection component 3 detects the temperature of the side wall of the storage tray Z, wherein the area detected by the temperature detection component 3 is the temperature of the upper area of ​​the heater Z. When the working liquid in the storage tray Z is sufficient, the temperature is maintained at the same temperature; the working liquid continues to decrease with the evaporation operation. When the liquid level of the working liquid is lower than the top surface of the heater Z, the temperature of the side wall of the storage tray Z not covered by the working liquid gradually increases. After the temperature detection component 3 detects that the temperature of the storage tray Z is higher than the stable working temperature, the controller 4 replenishes the working liquid to the storage tray Z.

[0102] As an optional embodiment of the present invention, the working liquid is water or an aqueous solution.

[0103] Specifically, water is used for ordinary heating; or, an aqueous solution with added pigments or flavor enhancers is used for food cooking.

[0104] In the description of the present invention, it should be noted that the terms "upper", "lower", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0105] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the inside of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0106] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steam heating control method, characterized in that: The following steps are involved: The first step is to add a certain amount of working liquid into the evaporation device, wherein the boiling point of the working liquid is lower than the maximum temperature of the evaporation device; In the second step, the evaporator heats the working liquid and converts it into gas to heat the object to be heated; The third step is, in the working state, when the working liquid in the evaporation device is sufficient, the temperature of the evaporation disk in the evaporation device is detected and recorded as A; the temperature of the evaporation disk in the evaporation device is detected in real time, and when the temperature of the evaporation disk in the evaporation device reaches A+B, the working liquid is added to the evaporation device, where B is greater than 0; The evaporation device has different working gears; In the third step, under different working gears, the temperature of the evaporation device is A1, A2...An, and the critical temperature of replenishing liquid to the evaporation device is A1+B1, A2+B2...An+Bn; The working power of the evaporation device corresponding to A1, A2…An gradually increases; B1, B2...Bn use equal values; or, the values ​​of B1, B2...Bn increase in magnitude, that is, when the evaporation device operates at a higher power, a higher judgment temperature needs to be detected to trigger the water replenishment process; or, the values ​​of B1, B2...Bn decrease in magnitude, so as to trigger the water replenishment process earlier under high power conditions.

2. The heating control method according to claim 1, characterized in that: A safety protrusion is provided inside the evaporation plate of the evaporation device; When the working liquid is sufficient, the working liquid submerges the safety protrusion; as the evaporation process continues, the working liquid gradually decreases, and the top of the safety protrusion first protrudes out of the liquid level of the working liquid, and the temperature of the top of the safety protrusion is detected.

3. The heating control method according to claim 1, characterized in that: In the first step and / or the third step, a metering pump (12) is used to replenish the working fluid, and the replenishment amount of the working fluid is regulated by controlling the operation time of the metering pump (12).

4. The heating control method according to claim 1, characterized in that: The temperature of the evaporation disk in the evaporation device is detected in real time. When the temperature of the evaporation device reaches A+C, the evaporation device stops working, where C is greater than B.

5. The heating control method according to claim 4, characterized in that: When the temperature of the evaporation device reaches C, start timing; Case 1: Within t1, after the temperature of the evaporation device is detected to be lower than A+C, the timing ends; In case 2, when the temperature of the evaporation device is continuously higher than A+C, the timing continues, and when the timing duration reaches t1, the evaporation device is shut down.

6. A heating system for implementing the heating control method according to any one of claims 1 to 5, characterized in that: include: A fluid replenishing component (1), a heating component (2), a temperature detecting component (3) and a controller (4); The liquid replenishing component (1) inputs working liquid into the heating component (2); The heating component (2) heats the working liquid to a gaseous state, thereby heating the object to be heated; The temperature detection component (3) detects the temperature of the heating component (2); The fluid replenishment component (1), the heating component (2) and the temperature detection component (3) are electrically connected to the controller (4); the controller (4) controls whether the fluid replenishment component (1) performs a water replenishment operation based on temperature information fed back by the temperature detection component (3).

7. The heating system according to claim 6, characterized in that The heating assembly (2) comprises a storage tray X (21) and a heater X (22); The bottom of the storage tray X (21) is provided with a protrusion and a groove, and when the liquid level of the working liquid is lower than the protrusion, the working liquid can still be stored in the groove; The temperature detection component (3) detects the temperature of the top of the protrusion, and the heater X (22) is arranged at the bottom of the storage tray X (21) and is electrically connected to the controller (4).

8. The heating system according to claim 7, characterized in that: The bottom surface of the storage tray X (21) is an upwardly convex curved surface or angular surface, and the central axis of the bottom surface of the storage tray X (21) coincides with the central axis of the side wall of the storage tray X (21).

9. The heating system according to claim 7, characterized in that: The shape of the top surface of the heater X (22) matches the shape of the bottom surface of the storage tray X (21).

10. The heating system according to claim 6, characterized in that The heating component (2) comprises a storage tray Y and a heater Y; The heater Y is arranged at the bottom of the storage tray Y and is electrically connected to the controller (4); the temperature detection component (3) detects the temperature of the side wall of the storage tray Y 1-3 mm above the bottom surface.

11. The heating system according to claim 6, characterized in that The heating component (2) comprises a storage tray Z and a heater Z; The heater Z is arranged on the side of the storage tray Z, and the temperature detection component (3) detects the temperature at the connection between the side wall of the storage tray Z and the heater Z.

12. The heating system according to claim 6, characterized in that The fluid replenishment assembly (1) comprises a fluid storage tank (11), a quantitative pump (12) and a timer; The liquid storage tank (11) stores working liquid, and the liquid storage tank (11) is connected to the heating component (2) through a pipeline; The metering pump (12) inputs the working fluid in the liquid storage tank (11) into the heating component (2), the metering pump (12) is electrically connected to the controller (4), and the controller (4) controls the on / off state of the metering pump (12); The timer is electrically connected to the controller (4), and the controller (4) controls the operation duration of the metering pump (12) according to the time information provided by the timer.

13. The heating system according to claim 6, characterized in that The working liquid is water or an aqueous solution.

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