1063 results about "Water boil" patented technology

The present invention relates to an automatic cooking pot notifying the completion of cooking. More specifically, provided is an automatic cooking pot which has a function of automatically notifying the optimal completion of a broth-based food, which retains a broth even when cooking is completed. Furthermore, if a user puts ingredients into the pot before the water boils, and selects a cooking menu wherein the same boiling time duration is set for the same menu regardless of the amount of food, the automatic cooking pot provided herewith notifies the user when the cooking is completed. In another embodiment, the user may adjust the boiling time duration to be set on a timer unit for the same food within a certain time range according to the amount of the food, on the basis of the variation in data in the boiling time durations depending on the amount of the food which have been measured through experiments beforehand.

The invention relates to a household drinking appliance, in particular to a steam pressure cooker, which comprises a main pot body. The upper end of the main pot body is connected with a selective laminated pot body and a pot lid, the bottom of the main pot body is connected with a steam-heating plate, and the shell of the main pot body is connected with a water accumulation core and a handle; and the water accumulation core is connected with one end of the steam-heating plate through a water supply pipe, the steam-heating plate can boil water through an external heating source to generate steam, and one end of the steam-heating plate is also connected with an air delivery pipe and an anti-spillage box and extends into the main pot body. The invention has the advantages that the drink-steaming speed is high, the adoption of the steam-heating plate can realize the water boiling within a short term due to the clearance cooking in the small space, and the generated heat can be used for steaming and cooking food; and the thermal energy transmitted from a heat source can be utilized more completely and more directly due to the fin type heat transfer block of the steam-heating plate technology.

The invention provides spicy beef paste and a method for preparing the same. Raw materials comprise 50 portions of water boiled beef, 15 portions of refined benne oil, 10 portions of walnut kernel, 8 portions of pignut, 1 portion of white sesameseed, 15 portions of bean paste, 10 portions of sweet flour paste, 8 portions of maltodextrin, 1 portion of sesame oil, 8 portions of hot pepper powder, 4 portions of cooking salt, 4 portions of monosodium glutamate, 4 portions of white sugar, and 4 portions of chicken essence. The raw materials are used to process the spicy beef paste through the processes of salting, boiling, stir-frying and the like. The spicy beef paste is not added with any flavoring essences and substitutes thereof and is prepared from 'green and pollution-free' beef and natural auxiliary materials, through a scientific formulation and according to nutritive values of the beef, the walnut kernel, the pignut, and the white sesameseed. The spicy beef paste has long storage time and is convenient food with high nutritive value.

The present invention provides a heating control method of electric water heater, resolving the problem of continuing heat according to the presetting after water boiled. The method includes following steps: a microprocessor detects whether the sensor is normal, dried burning or not, when a control circuit is powered on with the heat power, the sensor starts to detect the water temperature in the water heater and store, the microprocessor calculates the temperature change rate and stores, comparing the temperature change rate of the latter period with the temperature change rate of the former period, the microprocessor judges whether water is boiled or not, the control circuit continues heating water after switching to the heating power set value recalculated by the microprocessor, when achieving the set time, the control circuit cuts off the heating power. Compared with the prior art, the control circuit continues heating water after switching to the heating power set value recalculated by the microprocessor, adjusting the proper power by a preset, and continuing boiling, not only saving energy, but also continuing heat of meeting different aims.

The invention discloses a water boiling judgment control method for a heater. The control method comprises the following steps that the heater starts working according to a preset power-regulating ratio; when the preset temperature is reached, the heater stops heating; the time of the heater stopping heating reaches the preset time, the maximum temperature value Tmax and the minimum temperature value Tmin in the present time are recorded, and the difference between the two values is worked out according to the formula of delta T=Tmax-Tmin; the delta T refers to the difference grade of the preset temperature, and based on the temperature difference grade in which the delta T falls, two boiling states are judged, namely the boiling state is judged to be reached and the boiling process is judged to be finished or the boiling state is judged not to be reached; and the heater works according to the preset power-regulating ratio corresponding to the temperature difference grade in which the delta T falls, and the whole process is repeated. The control method can accurately judge whether water in the heater is boiling, and when the boiling state is judged not to be reached, and additional heating with different heating capacity is performed, so that the phenomenon of overflow or insufficient heating when the heater works is effectively prevented.

The invention relates to a preparation method of a rapid silane cross-linked polyethylene special material, the composition of the special material comprises: 60-95 parts by weight of polyethylene, 0-35 parts by weight of ethylene-vinyl acetate copolymer, 1-5 parts by weight of unsaturated silane, 0.1-1 part by weight of water-absorbing agent, 0.5-5 parts by weight of cross-linking assistant agent, 0.1-0.5 part by weight of antioxidant and 0.5-2 parts by weight of lubricant, and the special material is obtained by fully mixing all the raw materials and carrying out granulation by an extruder. The special material is extruded for preparing a pipeline or a cable insulating layer and then placed at room temperature of 23 DEG C for 24 hours, thereby automatically completing the cross-linking process and leading the degree of cross-linking to be above 65%; and the preparation method overcomes the shortcoming that the prior silane cross-linked plastic can only be cross-linked by water boiling under the environment of a warm water pool or a steam room, thereby greatly saving production cost for a manufacturer.

Disclosed is a thermal direct water dispenser / water boiler / water heater which organically integrates the functions of a direct water dispenser, a water boiler and a heater. City tap water is heated to 90 DEG C for sterilization and is turned to drinking water, and 90%of the sensible heat of the drinking water is recovered through a closed sensible heat cycle formed by heat exchanger of temperature difference of 5 DEG C. In this way, thermal direct-drinking water with temperature 5 DEG C higher than city tap water can be prepared, therefore the thermal direct water dispenser realizes the functions of increasing yield, reducing energy consumption and producing water which is rich is in oxygen, thus advocating lifestyle. The thermal direct water dispenser adopts a double-warming preheating structure with double heat preserving liners and double heating pipes. The thermal direct water dispenser can unilaterally dispense drinkable water with temperature of 90 DEG C and maintains the function of a water boiler, and can dispense hot water with temperature of 70 DEG C when connected in parallel, thus having the function of a water heater.

An automatic biofuel-combustion multipurpose furnace comprises a furnace body, wherein the furnace body consists of a combustion furnace, a fuel bucket, a feeding device and an automatic control device, the fuel bucket is positioned above the combustion furnace which is obliquely provided with a feeding pipe and internally provided with a combustion pool, the lower port of the feeding pipe is positioned above the combustion pool, the feeding device is arranged between the upper port of the feeding pipe and the combustion bucket, the furnace body is provided with an automatic igniter, the front end of the automatic igniter is contacted with the combustion bucket, a water drum wall is arranged on the side wall of the combustion furnace, a water inlet and a water outlet corresponding to the water drum wall are arranged on the combustion furnace, a water boiling port is arranged at the upper end of the combustion furnace and provided with a water boiling tray, a slag collection box is arranged under the combustion furnace, the combustion furnace is provided with an air inlet under the automatic igniter, an air outlet is arranged at the lower part of the furnace body and provided with an exhaust fan. The automatic biofuel-combustion multipurpose furnace can save non-renewable resources by combusting biofuel, and has the advantages of environment friendliness and safety.

The invention provides a complete-intelligent water-boiling device, a water-boiling system and a control method. The complete-intelligent water-boiling system and method are designed correspondingly by utilization of an automatic flipping device and an automatic rotary device for a water discharge elbow. By means of various man-machine interaction modes such as key operation of a teakettle or a heating base or operation of an intelligent mobile terminal, one-button intelligent water boiling is performed. The complete-intelligent water-boiling device, the water-boiling system and the control method have following beneficial effects: during the whole water-boiling process including water adding, heating or cooling by opening a cover, complete automation is achieved; a user does not need to perform other operation so that watering operation is performed easily and conveniently; and the complete-intelligent water-boiling device is much safer and more humanized.

The invention discloses a container for a water boiling device and the water boiling device with the container. The container for the water boiling device comprises container walls and a containing cavity defined by the container walls. The container walls are provided with a hot water inlet, a hot water outlet, a steam outlet, a cold water inlet, a cold water outlet and a cold water overflow port. A first partition plate for dividing the container into a hot water containing cavity and a cold water containing cavity and a second partition plate for dividing the cold water containing cavity into a water storage cavity and a water overflow cavity are arranged in the container, the cold water inlet and the cold water outlet are both formed in the bottom of the water storage cavity, and the cold water overflow port is formed in the bottom of the water overflow cavity. The hot water inlet is formed in the bottom of the hot water containing cavity, a third partition plate is arranged on the bottom face of the hot water containing cavity along the edge of the hot water inlet, a hot water outlet containing cavity is formed in the other side of the third partition plate, the hot water outlet and the steam outlet are formed in the hot water outlet containing cavity, the third partition plate is not lower than the second partition plate, and the steam outlet is formed in the upper portion of the side wall or the bottom of the hot water outlet containing cavity.

The invention relates to the field of ceramic arts and crafts and specifically discloses a Longquan celadon iron glaze and a method for manufacturing a celadon product by using the same. The glaze comprises the following ingredients in percentage by weight: 35-45% of Baoxi glaze clay, 6-9% of limestone, 6-9% of quartz, 18-20% of large kiln Zijin clay, 23-25% of iron ore and 1.2-2% of Badu fluorite. The celadon iron glaze product manufactured by using the celadon iron glaze and the method thereof provided by the invention combine the advantages of the traditional celadon product and an iron product, can not only inherit the advantage of fine texture of the traditional celadon, but also release divalent iron ions from water which is boiled out and similar to the water boiled out by an iron pot and has the effect of preventing and reducing hypertension. The water which is boiled out by the celadon iron glaze product is similar to the temperature of the water boiled by the iron pot, so that the effect of softening water quality is realized; the water becomes sweet and smooth, has thick and full taste and is particularly suitable for infusing old tea or boiling Puer tea.

The invention provides a water-boiling-resistant and flame-retardant polypropylene composite material with a high glow-wire ignition temperature and a preparation method. The water-boiling-resistant and flame-retardant polypropylene composite material with the high glow-wire ignition temperature is composed of the following materials: 72-76 parts of PP resin, 24-28 parts of a nitrogen phosphorus intumescent-type flame retardant, 0.1-0.2 part of an anti-dripping agent, 0.2-0.3 part of an antioxidant, 0.4-0.6 part of a lubricant, and 0.1-0.2 part of a high-efficiency synergist. The flame-retardant polypropylene composite material prepared by the method guarantees the material to pass a UL94 1.6mm-V0 test and achieve high-efficiency flame retardance, and at the same time the flame-retardant polypropylene composite material has performance such as a high glow-wire ignition temperature (875 DEG C, GWIT), water boiling resistance (100 DEG C), precipitation resistance, low smoke and thermal oxygen ageing and discoloring resistance (150 DEG C).

The invention relates to a making method of a silk quilt. The making process comprises cocoon cooking, cocoon peeling, spinning, silk overlapping and sewing. The making method is characterized by comprising the following steps: a, cooking cocoon, namely, injecting 20kg of fresh water in a pot and placing 5% sodium bicarbonate, placing cocoon and cooking, and sealing for 3-4 hours after water boils; b, peeling the cocoon, namely peeling the boiled cocoon, taking out pupa in the cocoon, and covering the cocoon on a finger, and drawing silk head or lightly pulling the cocoon with fingers to form a mesh shape; c, spinning, namely overlapping the expanded mesh-shaped silk to 5-6 layers and pulling to form square small silk pieces; d, overlapping the silks, namely covering 7-8 small silk pieces on an arch-shaped tool with a bamboo arch-shaped tool made in advance so that a pocket-shaped silk floss pocket is obtained, and then pulling the silk floss by four persons; and e, sewing, namely, overlapping multiple layers of silk floss meshes together according to the required thickness and then placing in lining cloth, and threading on the lining cloth until the internal silk flosses are stabilized and not piled together.

The invention discloses a preparation method of steaming-resisting and boiling-resisting poly(vinylidene chloride) (PVDC) waterborne emulsion. The preparation method adopts a vinylidene chloride monomer and a comonomer to perform copolymerization in a polymerizing kettle, the vinylidene chloride monomer, the comonomer and an assistant are added in a staged mode, and the reaction temperature and the reaction time are controlled to synthesize the steaming-resisting and boiling-resisting PVDC waterborne emulsion. The steaming-resisting and boiling-resisting PVDC waterborne emulsion prepared by means of the method is suitable for coating of two-way stretching nylon membranes, manufactured coating membranes are good in barrier property and have a good water-boiling- 'whitening' resisting characteristic, and the coating membranes are transparent in appearance after boiled with water and can be widely applied to packing materials of water-boiled sterilized foods including fruits, vegetables, fresh meat and the like.

The invention discloses a method for water boiling of an electric kettle, and particularly relates to a control method suitable for water boiling in areas of different altitudes. The method comprisesthe following steps: a control circuit is used for controlling the power supply of a power supply circuit for an electric heating unit which emits heat to a kettle body; a temperature probe of the control circuit is used for detecting the current temperature of water in the kettle body; and in the event that the current temperature measured by the temperature probe does not lower during a certainperiod and maintains constant for a plurality of measuring times, or the current temperature measured by the temperature probe does not change for a plurality of measuring times in succession, the control circuit cuts off the power supply of the power supply circuit for the electric heating unit and withdraws. The method solves the trouble that the temperature of water boiling in different areas needs to be measured one by one and requires setting of the circuit; and simultaneously, the method also prevents the interference of the external world and can eliminate 'false boiling' phenomenon caused by constant temperature during a certain period during heating process, thereby being capable of improving the correctness of boiling control.

An induction heating cooker for detecting water boiling precisely and realizing water-boiling control is provided. An induction heating cooker of an embodiment is provided with a glass top plate (16)for placing heated objects (35); a heater(48) arranged below the top plate and used for releasing induction heating of the heated objects (35) through a heating coil; an infrared sensor (32)for detecting infrared radiating from the top plate (16) and the heated objects(35); a control part (41) for monitoring the infrared detection value and change rate of the infrared sensor (32), and controlling firepower of the heater according to the infrared detection value and the change rate. The control part (41) is used for realizing boiling detection according to the detection value of the infrared sensor (32), calculating the load capacity of the heated objects (35) of the top plate according to the infrared detection value of the boiling detection and the changing rate of the infrared detection value before the boiling rate, and controlling firepower of the heater after the boiling detection according to the load capacity.

The invention relates to an intelligent drinking-water system capable of identifying a user geographic position and collecting user healthy information. The intelligent drinking-water system comprises an intelligent water boiling device, a cloud server, an intelligent terminal, and a health check-up sensor. The health check-up sensor is used for detecting a healthy state of a user to generate healthy information related to the user and sending the information to the intelligent terminal and the cloud server. The cloud server obtains an IP address of the intelligent water boiling device to generate identification information containing the geographic position, generates recommend information based on the healthy information of the user or identification information, and sending the information to the intelligent terminal. On the basis of the optimum scheme close to the current demand of the user, full-automatic water boiling is realized; a scientific, reasonable, proper, and healthy water boiling service scheme meeting the features of the user can be provided for the user comprehensively based on the geographical characteristics and healthy states and the like; the powerful cloud service platform is formed; and advantages of the intelligent water boiling device can be explored completely; and an energy-saving, environment-friendly, green, and healthy household environment is created.

The invention discloses an environment-friendly wall decoration plate and a preparing method of the environment-friendly wall decoration plate. The environment-friendly wall decoration plate comprises a substrate layer, wherein a UV (ultraviolet) back coating coats the back side of a substrate; a UV permeation bottom coats the front side of the substrate; a UV putty layer is arranged on the UV permeation bottom; a bonding layer is arranged on the UV putty layer; multicolor water paint, i.e., water-in-water or water real stone paint or UV solid color paint coats the bonding layer; a finishing paint layer coats the water water-in-water or water real stone paint or UV solid color paint; and a film covering layer is arranged on finishing paint. The environment-friendly wall decoration plate has the advantages that green and environment-friendly effects are achieved; the attaching performance, the water-resistant performance and the water-boiling-resistant performance are good; and delamination cannot easily occur. Natural vivid and colorful patterns and various stone imitating decoration effects can be provided; and the surface physical and chemical property is excellent. The preparing method comprises seven steps, and has the advantages that no solvent volatilizes in the construction process; the production efficiency is high; energy sources are saved; and the occupied area can be reduced.

The invention relates to a sound emission detection method of a water boiling state and mainly solves the problem in the prior art that the change of the boiling state in one part of industrial heat-exchanging equipment cannot be accurately detected in real time. The method comprises the following steps of: (1) receiving a sound signal inside the heat-exchanging equipment; (2) selecting total energy, standard deviation, average absolute deviation and a main frequency of the sound signal as characteristic parameters; and (3) analyzing changing characteristics of the characteristic parameters and taking a k value as a criterion to detect the boiling state in the heat-exchanging equipment and conversion thereof online in real time. The method can be used for accurately and effectively obtaining the characteristic parameters of signals, can be used for easily and conveniently detecting the boiling state and the conversion of the heat-exchanging equipment on line in real time. The invention further discloses a detection device comprising a signal receiving device, a signal amplification device, a signal collection device, a signal processing device, an output displaying device and a control device. The device is in a non-invading type, is simple, easy and convenient to use, and has strong applicability to the different heat-exchanging equipment.

The invention discloses a water boiling detection device for an electromagnetic oven. The device comprises an acoustic sensor and an acoustic amplification circuit, wherein the acoustic sensor is electrically connected with the acoustic amplification circuit, and is electrically connected with a singlechip through the acoustic amplification circuit; an electromagnetic heat control circuit is arranged in the singlechip, and receives sound of water boiling through the acoustic sensor. The device not only can detect water boiling, but also can be automatically shut down, and can accurately determine whether the water is boiled or not and is not affected by background noise. The device has a simple circuit structure, and the sound error is in 15 seconds.

The invention provides a scale detection method and a scale detection device for a water boiling utensil. The scale detection method comprises the steps as follows: obtaining the total energy consumption for heating water in the water boiling utensil to a designated temperature; calculating the unit energy consumption for heating the unit quantity of water to the designated temperature by the water boiling utensil according to the total energy consumption and the water quantity in the water boiling utensil; when the unit energy consumption is larger than or equal to a predetermined value, judging that scale exists in the water boiling utensil. By the aid of the scale detection method and the scale detection device, the scale in the water boiling utensil can be detected accurately, so that whether the scale is required to be removed or not can be judged accurately.

The invention relates to instant heating type drinking equipment and a control method thereof. The instant heating type drinking equipment structurally comprises a water storage box, a control circuit, a water pump, a liquid outlet and an instant heating type water heating pipe with a water boiling channel, wherein the water boiling channel is provided with an inlet and an outlet; the outlet is communicated with the liquid outlet; the inlet is communicated with the water pump and the water storage box through a flow sensor; an inlet water temperature sensor is further arranged in the inlet; the instant heating type water heating pipe, the flow sensor, the water pump and the inlet water temperature sensor are respectively and electrically connected with the control circuit. According to the instant heating type drinking equipment, the flow sensor is used for accurately acquiring quantity of water entering the water boiling channel, the inlet water temperature sensor is used for acquiring the water temperature information of the water storage box, and through the combination of the two kinds of signals, the control circuit can accurately obtain the required water temperature by controlling the power of a heater.

The invention relates to a control method of intelligent cloud convection heating and an electromagnetic heating device. The invention discloses a control method of the electromagnetic heating device. The electromagnetic heating device comprises more than two resonance coils and a selective switch. The method comprises the following steps: S1, starting the electromagnetic heating device to heat a cooker; S2, detecting the vibration state of the cooker within the preset time to generate a detection signal; and S3, according to the detection signal, controlling the selective switch to carry out switching so as to change the resonance coil which works currently. According to the method, a vibration sensor which is arranged in an existing electromagnetic heating device such as an induction cooker and is used for detecting the water boiling state in the water cooking process is directly used for detecting the vibration state of the cooker, the coils are controlled to carry out the convection heating alternately according to the detected vibration state of the cooker, and an additional part is not needed; furthermore, the method is accurate in detection, simple and easy. The invention also discloses the electromagnetic heating device.

The invention discloses a composite insulator interface detection method. The method comprises the following steps of sampling from composite insulators to be detected to acquire an experiment group insulator and a reference group insulator, and then carrying out a water boiling experiment on the experiment group insulator, wherein water boiling time is 300h; installing the reference group insulator and the experiment group insulator on an electrode structure of a respective high voltage circuit and applying a voltage on the electrode structure; through a leakage current detection apparatus in the high voltage circuit, detecting leakage currents of the experiment group insulator and the reference group insulator, and simultaneously, through a surface temperature tester, testing surface temperatures of the experiment group insulator and the reference group insulator; and according to the leakage currents and the surface temperatures of the experiment group insulator and the reference group insulator, determining whether an interface of a sheath of each composite insulator to be detected and a core rod has a debonding type defect. By using the method, the insulator whose interface has the defect or hydrolysis resistance performance is poor can be effectively determined.

The present invention is preparation process of natural botanic food color, and the preparation process includes squeezing natural plant material or water boiling to obtain juice, concentrating, extracting, and blending into different kinds of natural botanic food color. The present invention has simple operation, and is suitable for industrial production, and the prepared natural botanic food color is healthful and may be used widely in food and medicine.

Methods for steaming food are disclosed. Food suspended within a compartment of the apparatus is cooked by steam rising from a reservoir of boiling water below. The water boils by way of a heating element. After passing through the food compartment, steam collects in a dome shaped lid where it condenses to water which then flows by means of a gutter device below the lid into channels along the food compartment walls to return to the reservoir without contacting the food.

The invention discloses a manufacturing method for a mothproof writing brush. Pure natural plants are adopted, water boiled through camphorwood and camphorwood chips serve as a natural mothproofing agent to be used for conducting the mothproof treatment on the writing brush. In the whole treatment process, only a small amount of carrageen needs to be added to serve as a bonding agent, no chemical agent needs to be added, and insecticide and other harmful chemical substances are replaced to achieve insect prevention and mothproofing. A brush head can be placed for a long time, the mothproof effect is very good, and the manufacturing method is particularly suitable for storage of brush heads obtained after large-batch production. The problems existing in the industry all the time are solved. The cost is low, the mothproof effect is good, pollution will not be caused, or harm to the health of a user will not be caused. Brush bristles are not damaged, and the quality of the manufactured writing brush, especially Huzhou writing brushes is guaranteed; and during using, only the brush head needs to be scattered firstly, residual wood powder can automatically fall down, the writing effect cannot be affected, the ink absorbing amount is increased instead during ink dipping, and ink is more uniform during writing.

The invention discloses a room-temperature silane cross-linked polyolefin and its preparation method. The preparation method comprises the following steps: mixing polyolefin in a 80-100DEG C open mill, rolling, sequentially adding a flame retardant filler, a filler, a softener and an antioxidant, mixing for 5-15min, adding a catalyst, mixing for 2-6min, and taking down to obtain a material A; mixing polyolefin in a 60-90DEG C open mill, rolling, sequentially adding a filler, an antioxidant and a water bringing agent, mixing for 5-15min, adding a silane coupling agent / silane absorbent mixture, mixing for 2-5min, and taking down to obtain a material B; and uniformly mixing the catalyst material A with the base material B according to a weight ratio of 95:4-6 at 60-90DEG C, mixing for 4-8min for tabletting, tabletting with a press vulcanizer at 165-175DEG C for 10-20min, and disposing the prepared sample at normal temperature for 24-120h to obtain the silane cross-linked polyolefin. The preparation method has the advantages of omitting of a water boiling cross-linking or water vapor bath cross-linking link, technology simplification and cost reduction, and a wire and cable sheath material prepared through using the silane cross-linked polyolefin has the advantages of good elasticity and flexibility, good flame retardation effect, and strong heat resistance and ageing resistance.

The invention provides a processing method for a flavour edible fungi product. The processing method comprises the steps that firstly one or more than one edible fungi fruit body (bodies) is cleaned and then is / are cut into pieces, or strips or slices, then the pieces, or strips or slices are blanched with condiment water boiled in advance, a heat source is closed, the edible fungi fruit bodies are continuously soaked for certain time, drained edible fungi is paved in a bakeware brushed with cooked plant oil in advance, then the cooked plant oil is brushed on the surface of the edible fungi, and then the edible fungi is placed into a baking oven to be baked at different temperatures, and finally the baked edible fungi is stirred and mixed with flavour material, thus the flavour edible fungi product is prepared. The processing method disclosed by the invention solves the problem that a dried flavour edible fungi product is hard in texture or strong in toughness, and the product obtained by adopting the processing method disclosed by the invention is soft, is easy to chew and has good taste and unique and diverse flavours, thus the processing method disclosed by the invention has great popularization value and potential.

The invention discloses a water boiling device with an electrothermal board water boiling cavity, which is characterized by comprising a seat body, a balance water tank, a water pump and the electrothermal board water boiling cavity, wherein the balance water tank is provided with an inlet, an outlet and a reflux inlet, the electrothermal board water boiling cavity is a heating body with a water boiling cavity which is formed by electrothermal boards, the electrothermal board water boiling cavity is provided with a water inlet and a water outlet, the water outlet is communicated with a water outlet nozzle arranged on the seat body, the water inlet is connected with the balance water tank, the inlet of the balance water tank is communicated with the water pump, and the water pump is communicated with a water source. The water boiling device with the electrothermal board water boiling cavity has the advantages that the structure is simple and reasonable, using places of products are not limited by external water pressure, water drunk by people is guaranteed to meet the demands of setting temperature, the volume is small, the quality is light, the heating is rapid.