30results about How to "Water temperature is accurate" patented technology

The invention discloses an outgoing water temperature control method of a water dispenser. The method comprises the following steps that: S1, incoming water temperature and target outgoing water temperature are acquired; S2, initial heating power and initial flow rate are calculated according to the incoming water temperature and the target outgoing water temperature, and heating is performed according to the initial heating power; S3, actual outgoing water temperature is acquired, and the flow rate of a water pump is adjusted according to the actual outgoing water temperature; and S4, when a difference value between the actual outgoing water temperature and the target outgoing water temperature is smaller than a preset threshold value, heating power is adjusted according to the actual outgoing water temperature. According to the outgoing water temperature control method of the water dispenser of the invention, outgoing water temperature can be precisely controlled through coarse adjustment of the flow rate of the water pump and fine adjustment of heating power. The method can satisfy people's needs and bring conveniences to people's lives. The invention also discloses a water dispenser.

The invention discloses an instant heating water dispenser based on the internet of things and belongs to the technical field of water dispensers. The instant heating water dispenser based on the internet of things is mainly characterized in that a drinking water instant heater and a control circuit board are arranged in a water dispenser shell, a wireless communication module is arranged on the control circuit board, and a temperature monitoring sensor, a drinking water monitoring sensor, a flow monitoring sensor, a water pump and a water quality detection sensor are arranged on a water channel; the control circuit board can monitor collected water data through the sensors. According to the water dispenser, instant heating of drinking water can be achieved, the outflow water temperature and the outflow water amount can be accurately controlled, and the water quality can be detected; water consumption information can be transmitted through the internet of things, timely water supply isreminded, water consumption requirements of people are met, and the water dispenser has the advantages of being safe, capable of saving energy and intelligent.

The present invention provides a cooling tower outlet water temperature measurement device and method. The device comprises test modules being put in a reservoir and comprising a water collection vessel and a temperature monitor arranged in the water collection vessel, wherein the water collection vessel is configured to collect cooling water flowing out from a spraying device of a cooling tower,and there are the plurality of test modules which are in one-to-one corresponding arrangement with a plurality of preset spraying positions of the spraying device to collect cooling water flowing outat each preset spraying position. The cooling tower outlet water temperature measurement device solves the problem that the cooling tower outlet water temperature measurement mode is poor in precisionin the prior art.

The invention discloses a gas water heater and a control method thereof, belongs to the field of water heaters and control methods thereof, and is designed for solving such problems as difficult realization in a traditional device. The gas water heater comprises a shell, and a water pipe arranged in the shell; a water current server is arranged at a water inlet end of the water pipe, and includes a water current sensor, a stepper motor and a water adjusting valve element; and when the water inlet quantity is changed, the water current server is used for adjusting the water inlet quantity to reach a set value. The control method based on the gas water heater continuously detects the water inlet quantity; when the numerical value of the water inlet quantity is deviated from the set value, the water current server is used for compensating the water flow; and a gas valve synchronously adjusts to guarantee constant water outlet temperature. The gas water heater can keep stable water inlet quantity to guarantee stable water outlet temperature thereof. The control method based on the gas water heater is convenient for use, easy to operate and more precise in control of the water outlet temperature.

The invention relates to a three-way thermostatic adjustable mixing valve. A cold water inlet is arranged on a valve body, a cold and hot water mixed outlet which is opposite to the cold water inlet is arranged on the valve body, a hot water inlet is arranged on the valve body perpendicular to the cold water inlet, a temperature-adjusting hand wheel device corresponding to the hot water inlet is screwed on the valve body, a temperature-adjusting nut which is screwed with the valve body is mounted in the temperature-adjusting hand wheel device, a locating nut of a limiting push rod is mounted in the temperature-adjusting nut, a cold water valve seat with a water through hole is screwed in a valve chamber at the front of the locating nut in the valve body, a temperature-sensitive element is mounted between a hot water valve seat and a cold water valve seat in the valve body, a cone hot water valve clack is arranged at one end of the temperature-sensitive element contacting with hot water, wherein the outside of the temperature-sensitive element is sleeved with a return spring, a cone cold water valve clack is arranged at one end contacting with cold water, a push rod with the diameter smaller than that of the water through hole on the cold water seat is mounted at one end of the temperature-sensitive element, and the push rod penetrates through the cone cold water valve clack.

The present invention relates to a quick heating water dispenser, which comprises a casing, a water tank and a quick heater arranged on the casing, the water tank is connected with a water outlet pipe, and connected with the inlet of the quick heater, the outlet of the quick heater is connected with a hot water outlet, the quick heating pipe is arranged inside a heating pipe outer protective cover. The inlet is connected with the water inlet tie-in in airproof method, the outlet is connected with the water outlet tie-in of the protective cover in airproof method. The present invention provides a novel quick heating water dispenser with reliable structure, strong performance of pressure resistance and temperature resistance, and long service life.

The invention discloses a gas water heater capable of achieving multi-stage flow limiting and temperature control. The gas water heater comprises a burner, a heat exchanger, a water inlet pipe, a water outlet pipe, a discharged water temperature detecting device, a water flow detecting device, a gas proportional valve, a first water adjusting device and a controller; the first water adjusting device comprises a first valve body, a first flow stabilizer and a control valve; the first valve body is provided with a first main water way and a first bypass water way; the two ends of the first mainwater way communicate with externally supplied water and a water inlet end of the water flow detecting device correspondingly, and the first main water way is provided with the first flow stabilizer;the water inlet end and the water outlet end of the first bypass water way communicate with the water inlet end and the water outlet end of the first flow stabilizer correspondingly; and the control valve is arranged on the first valve body and used for controlling opening and closing of the first bypass water way. Through the gas water heater of the invention, the quick temperature rising effectcan be achieved, the waiting time is shortened, the wasting quantity of cold water is decreased, and meanwhile, the influence of water supply pressure on the temperature rising stage can be reduced.

The invention provides a constant-temperature quantitative instant heating type water dispenser. The constant-temperature quantitative instant heating type water dispenser comprises a shell body, a water tank, a water pump, a touch panel, a PLC, a heater set, a hot water pipe, a water outlet pipe, a circulating water pipe, a cold water pipe, a flow detector and a temperature sensor, wherein the heater set comprises a first-stage heater, a second-stage heater, a third-stage heater, a fourth-stage heater, a fifth-stage heater, a sixth-stage heater and a seventh-stage heater; and water heating temperature ranges of the seven heaters are respectively 30-40 DEG C, 40-50 DEG C, 50-60 DEG C, 60-70 DEG C, 70-80 DEG C, 80-90 DEG C and 90-100 DEG C. According to the water dispenser, the water outlettemperature and the water outlet amount can be intelligently set, water can be heated in a graded and layered mode, the heating speed can be increased, the accuracy of the water outlet temperature can be improved, and accurate temperature control can be achieved; and the circulating water pipe can circularly heat the retained cold water in the pipeline, so that the retained cold water in the pipeline can be prevented from directly entering the water receiving container through the water outlet pipe to influence the water receiving temperature.

The invention provides a coaxial three-control constant temperature valve element. The coaxial three-control constant temperature valve element comprises a movable ceramic chip, a fixed ceramic chip,a valve element sleeve and a valve sleeve base; the valve sleeve base is arranged on the valve element sleeve, a hot water inlet, a mixed water outlet and a cold water inlet are formed in the bottom of the valve sleeve base, the top end of the movable ceramic chip is connected with a flow adjusting sleeve, the top of the valve element sleeve is fixedly connected with a temperature adjusting sleeve, the top end of the temperature adjusting sleeve is provided with a temperature control valve rod for controlling the water temperature, the periphery of the temperature adjusting sleeve is rotatablysleeved with a flow valve rod which controls the flow adjusting sleeve to rotate and drives the movable ceramic chip to rotate relative to the fixed ceramic chip so as to control cold and hot water on-off states and cold and hot water flow, a thermosensitive element is arranged in a mixed water runner of the valve sleeve base, a mixed water cavity is formed between the flow adjusting sleeve and the thermosensitive element, an adjuster fixed to the thermosensitive element in a sleeving manner is arranged in the mixed water cavity, and the thermosensitive element drives the adjuster to move upand down to adjust the water inlet amount of the cold and hot water so as to control mixed water with the constant temperature in the mixed water runner to flow out. The invention further provides a water faucet with the coaxial three-control constant temperature valve element.

The invention provides a double-handle coaxial temperature control valve element. The double-handle coaxial temperature control valve element comprises a valve body, a thermosensitive element and an adjusting component. The valve body is provided with a cold water inlet, a hot water inlet and a mixed water outlet. The thermosensitive element is provided with a temperature sensing end and a telescopic end. The temperature sensing end gets close to the mixed water outlet and is used for sensing the outlet water temperature information of the mixed water outlet and transmitting the information to the telescopic end. The adjusting component is provided with a first rotary adjusting part and a second rotary adjusting part which are coaxially arranged from top to bottom. The first rotary adjusting part is in linkage with a flow adjusting part. When the first rotary adjusting part is rotated, the flow adjusting part can open or close the mixed water outlet. The second rotary adjusting part is in linkage with a temperature adjusting part. When the second rotary adjusting part is rotated, the temperature adjusting part can adjust the water passing area of the cold water inlet and the hot water inlet. According to the double-handle coaxial temperature control valve element, the upper rotary adjusting part is used for opening the mixed water outlet, and the lower rotary adjusting part is used for adjusting the outlet water temperature.

The invention discloses an intelligent temperature-control water faucet. A main control module is adopted to drive motors to control a thermostatic valve and a switching valve, so that the control over outgoing water and constant temperature is achieved; a water temperature sensor is arranged to detect the water temperature in a mixed water cavity in real time, and the main control module controls the rotation position of the thermostatic valve according to the feedback water temperature, so that thermostatic adjustment for a specified temperature is achieved, and the temperature adjustment is precise; by means of the dynamic temperature adjustment mode, it is guaranteed that the temperature of the outgoing water is constant, a touch induction display circuit is used for conducting control and state display, and the experience feeling of a user is good; a temperature upper limit sensor is arranged to conduct monitoring on the temperature upper limit of the outgoing water, and when the temperature upper limit sensor induces that the water temperature is larger than the threshold value, the main control module controls the switching valve to shut off and stop water outgoing. According to the intelligent temperature-control water faucet, double safety temperature guarantees including the temperature upper limit adjustment guarantee and the outgoing water temperature limit guarantee are arranged, and even if a cold water inlet and a hot water inlet are reversely connected with each other by mistake, it can be more reliably guaranteed that a user is not scalded by hot water through the outgoing water temperature limit guarantee.

The invention discloses an intelligent bathtub, which comprises a bathtub body, a water level meter, a water mixing valve, an electromagnetic valve, a water discharge valve, a first temperature indicator, a second temperature indicator and a controller. The invention also discloses an heat insulation control method for the intelligent bathtub. After the bathtub water level reaches the set water level, partial cooled mixed water in the bathtub is discharged by controlling the water discharge valve; in addition, the water mixing valve and the electromagnetic valve are controlled to charge supplementing water with the temperature higher than the mixed water temperature in the bathtub, so that the mixed water in the bathtub tends to the set water temperature and the set water level and is finally maintained at the set water temperature and the set water level. By using the technical scheme, the additional arrangement of a heating function unit is not needed; the mixed water in the bathtubcan maintain the set water temperature; the intelligent bathtub heat insulation technical scheme is simplified; the manufacturing cost of the intelligent bathtub is reduced; the operation is convenient; the heat insulation function of the bathtub can be conveniently reduced.

The invention discloses a transcritical carbon dioxide single-stage and double-stage compression hot water system and a control method thereof. The system comprises a first-stage compressor, a first heat exchanger used for exchanging heat with user side cooling water, a second-stage compressor, a second heat exchanger used for exchanging heat with user side cooling water, a third heat exchanger used for exchanging heat with a liquid-phase refrigerant and a gas-phase refrigerant, an expansion valve, a fourth heat exchanger used for exchanging heat with ambient air, a buffer water tank and a first proportional valve. A first proportional valve, a second proportional valve, a third proportional valve, a fourth proportional valve, a defrosting valve, a refrigerant path bypass valve and the like; the system realizes intelligent switching of single-stage and double-stage transcritical operation under variable working conditions, has outstanding heating capacity and energy efficiency ratio under all working conditions, remarkably improves the comprehensive performance of preparing high-temperature hot water under a low-temperature environment, and also solves the defrosting problem and the oil return problem of a double-stage compression hot water system.

The embodiment of the invention discloses a water mixing tank, a control method thereof and an energy station, and belongs to the technical field of water heaters. The water mixing tank includes a cold water input pipeline, a hot water input pipeline and a water outlet pipeline which are connected with the water storage tank, and a heating device is arranged in the water storage tank. The controlmethod of the water storage tank includes the steps that when heat provided by the hot water input pipeline is insufficient, water in the water storage tank is heated by the heating device so as to precisely control the water outlet temperature.

The invention discloses an intelligent temperature control spray head. The spray head comprises a spray head body and a water inlet pipe connected with the spray head body, and is characterized in that a first three-way valve is arranged at the position, close to the spray head body, of the water inlet pipe, a second three-way valve is arranged at the position far away from the spray head body, and the first three-way valve is connected with the second three-way valve through a long pipeline; the first three-way valve communicates with an auxiliary hot water pipe, the second three-way valve communicates with a main hot water pipe and a cold water pipe correspondingly; temperature sensors are both arranged in the cold water pipe, the main hot water pipe, the long pipeline and a nozzle body,rapid temperature adjustment can be realized by the spray head, waste in water test is reduced, and water resources are greatly saved; the invention further discloses an excitation type energy savingmethod of the intelligent temperature control spray head, the water consumption of a user is compared with the water consumption limit, when the water consumption of the user is lower than the waterconsumption limit, a certain reward is given, the excitation mode is adopted, so that the water-saving awareness of people is enhanced, and the water resources are saved from the source.

The present invention relates to a quick heating water dispenser, which comprises a casing, a water tank and a quick heater arranged on the casing, the water tank is connected with a water outlet pipe, and connected with the inlet of the quick heater, the outlet of the quick heater is connected with a hot water outlet, the quick heating pipe is arranged inside a heating pipe outer protective cover. The inlet is connected with the water inlet tie-in in airproof method, the outlet is connected with the water outlet tie-in of the protective cover in airproof method. The present invention provides a novel quick heating water dispenser with reliable structure, strong performance of pressure resistance and temperature resistance, and long service life.

The invention provides a coaxial three-control thermostatic valve core, which includes a moving porcelain piece, a static porcelain piece, a valve core sleeve and a valve sleeve seat. The valve sleeve seat is installed on the valve core sleeve; the bottom of the valve sleeve seat is provided with a hot water inlet Mixed water outlet and cold water inlet; the top of the moving ceramic plate is connected with a flow regulating sleeve, the top of the valve core sleeve is fixedly connected with a temperature regulating sleeve, and the top of the temperature regulating sleeve is installed with a temperature control valve rod to control the water temperature, and the outer periphery of the temperature regulating sleeve is rotated. There is a flow valve stem that controls the rotation of the flow regulating sleeve and drives the moving ceramic plate to rotate relative to the static ceramic plate to control the on-off of hot and cold water and the flow of cold and hot water; a heat-sensitive element is also installed in the mixed water flow channel of the valve sleeve seat, and the flow adjustment A mixing chamber is formed between the sleeve and the heat-sensitive element, and a regulator fixed on the heat-sensitive element is set in the water-mixing chamber. The heat-sensitive element drives the regulator to move up and down to adjust the water intake of cold and hot water to control the mixed water flow. Mixed water with a constant temperature flows out of the channel; the invention also provides a faucet with a coaxial three-control thermostatic valve core.

The invention relates to an electronic adjustable constant temperature water outlet solar water heater controller, and belongs to the field of civilian solar water heaters. The electronic adjustable constant temperature water outlet solar water heater controller comprises a switching power supply, an A / D converter, a single chip microcomputer, a driving circuit, a nixie tube display, a display circuit, four setting key switches and an IO line row; the switching power supply is connected with each of the A / D converter, the single chip microcomputer, the driving circuit and the display circuit;the four setting key switches are connected with the single chip microcomputer; the single chip microcomputer is connected with the driving circuit and the display circuit simultaneously; the drivingcircuit is connected with the IO line row; the IO line row is connected with the A / D converter; the A / D converter is connected with the single chip microcomputer; and the display circuit is connectedwith the nixie tube display. The electronic adjustable constant temperature water outlet solar water heater controller can receive temperature information of hot water and cold water, respectively open a cold water valve and a hot water valve to a certain degree according to a degree internal algorithm according to a set water outlet temperature, and perform closed-loop control by information feedback of a warm water temperature sensor to obtain an accurate water outlet temperature.

The invention discloses an instant heating water dispenser based on the Internet of Things, belonging to the technical field of water dispensers. The instant heating water dispenser based on the Internet of Things is mainly equipped with an instant drinking water heater and a control circuit board inside the water dispenser housing. The control circuit board is provided with a wireless communication module. Sensors, flow monitoring sensors, water pumps and water quality detection sensors, the control circuit board can monitor and collect water use data through these sensors. The present invention can realize immediate heating of drinking water, can precisely control the outlet water temperature and water volume, can also detect water quality, can transmit water information through the Internet of Things, reminds timely water supply, and is convenient for people to use water. Energy-saving and intelligent features.

The invention discloses an intelligent bathtub and a water filling control method thereof. The intelligent bathtub comprises a bathtub body, a water level gauge for measuring the water level of the bathtub, a water mixing valve, an electromagnetic valve, a draining valve, a first thermometer, a second thermometer, an input unit and a controller. The method includes: in a water mixing valve temperature regulating stage, opening the draining valve, using the second thermometer to measure draining water temperature, controlling the temperature of mixed water according to the draining water temperature, and closing the draining valve and starting water filling after the draining water temperature reaches set temperature; in the water filling stage, using the first temperature meter to measurethe temperature of the mixed water, allowing the controller to continuously regulate the water mixing valve according to the temperature difference between the temperature of the mixed water and the set water temperature to allow the temperature of the mixed water to be kept at the set water temperature and prevent the temperature lowering, caused by the continuous hot water output, of the mixed water. By the water filling control method, the fact that the actual temperature of the mixed water in the bathtub is the set water temperature can be guaranteed, and the control precision of the actual temperature of the mixed water of the intelligent bathtub is increased.

The invention discloses an intelligent bathtub, which comprises a bathtub body, a water level meter, a water mixing valve, an electromagnetic valve, a water discharge valve, a first temperature indicator, a second temperature indicator and a controller. The invention also discloses an heat insulation control method for the intelligent bathtub. After the bathtub water level reaches the set water level, partial cooled mixed water in the bathtub is discharged by controlling the water discharge valve; in addition, the water mixing valve and the electromagnetic valve are controlled to charge supplementing water with the temperature higher than the mixed water temperature in the bathtub, so that the mixed water in the bathtub tends to the set water temperature and the set water level and is finally maintained at the set water temperature and the set water level. By using the technical scheme, the additional arrangement of a heating function unit is not needed; the mixed water in the bathtubcan maintain the set water temperature; the intelligent bathtub heat insulation technical scheme is simplified; the manufacturing cost of the intelligent bathtub is reduced; the operation is convenient; the heat insulation function of the bathtub can be conveniently reduced.

The invention relates to the technical field of water heater control, and discloses a method, a device, a water heater and a storage medium for controlling the outlet water temperature of the water heater. Wherein, the control method includes: detecting whether the water outlet valve of the water heater is closed; when it is detected that the water outlet valve is closed, obtaining the first water outlet temperature before the water outlet valve is closed and the corresponding water outlet time; judging whether the water outlet time is less than the first preset time length ; When the water outlet time is shorter than the first preset time, adjust the first outlet water temperature of the water heater to the second outlet water temperature. By implementing the present invention, the flexible switching between the first outlet water temperature and the second outlet water temperature is realized, making the adjustment of the outlet water temperature more convenient, and through the flexible switching between the first outlet water temperature and the second outlet water temperature, it is not necessary to frequently adjust the outlet water temperature , On the basis of convenient temperature adjustment, the precise control of the outlet water temperature is realized.

The invention discloses a water outlet temperature control method of a water dispenser, which comprises the following steps: S1, obtaining the water inlet temperature and the water outlet target temperature; S2, calculating the initial heating power and the initial flow rate according to the water inlet temperature and the water outlet target temperature, and heating according to the initial heating power; S3, obtaining the actual temperature of the water outlet, and adjusting the flow rate of the water pump according to the actual temperature of the water outlet; and S4, when the difference between the actual temperature of the water outlet and the target water outlet temperature is less than When the threshold is preset, the heating power is adjusted according to the actual temperature of the outlet water. The water outlet temperature control method of the water dispenser of the present invention can precisely control the outlet water temperature by roughly adjusting the flow rate of the water pump and finely adjusting the heating power, so as to meet people's living needs and bring convenience to people's lives. The invention also discloses a water dispenser.

The invention discloses a control method of an electric water heater. The electric water heater comprises a heating container, first electric heating sub-components, second electric heating sub-components, a power storage module, a discharge control module and an external power supply discharge module. The control method comprises the steps that in the process that water flowing through the heating container is heated through the second electric heating sub-components, if the second electric heating sub-components are at the maximum heating power and the water outlet temperature of the heatingcontainer is lower than the set temperature, the discharge control module controls the corresponding first electric heating sub-components to be powered on, and the first electric heating sub-components heat water flowing through the heating container at the same time. Constant-temperature hot water output is achieved so as to reduce the fluctuation range of output water temperature and improve user experience.

A quick heating water dispenser having temperature-channeling preventing function, which comprises a casing, and a water tank arranged on the casing, the water tank is connected with a water outlet pipe, the water outlet pipe is connected with the inlet of a heater, the outlet of the heater is connected with a hot water pipe, the hot water pipe is connected with a hot water outlet, the quick heating water dispenser also comprises a liquefaction chamber, which comprises a water inlet, a water outlet and an air outlet, the water inlet is connected with the outlet of the heater, the water outlet is connected with the hot water outlet, and the air outlet is connected with the water tank of the water dispenser, the liquefaction chamber adopts a rotating body, the rotating body comprises a side surface, a top surface and a bottom surface, the water inlet is arranged on the side surface of the rotating body, the water outlet is positioned on the bottom surface of the rotating body, and the air outlet is arranged on the top surface of the rotating body. The present invention provides a quick heating water dispenser having temperature-channeling preventing function, which prevents the hot water in the air intake pipe from channeling to the water tank, to avoid temperature-channeling, and to provide smooth water outlet.

The invention provides a dual-handle coaxial temperature control valve core, comprising: a valve body with a cold water inlet, a hot water inlet and a mixed water outlet; a heat sensitive element with a temperature sensing end and a telescopic end, the The temperature-sensing end is close to the mixed water outlet, and is used to sense the water outlet temperature information of the mixed water outlet, and transmit it to the telescopic end; an adjustment element, which has a first rotation adjustment part and a second rotation adjustment part coaxially arranged from top to bottom. Rotation adjustment part; the first rotation adjustment part is set in conjunction with a flow adjustment part, when the first rotation adjustment part is rotated, the flow adjustment part opens or closes the mixed water outlet; the second rotation adjustment part and A temperature adjustment part is provided in conjunction with each other. When the second rotation adjustment part is rotated, the temperature adjustment part adjusts the water passing area of ​​the cold water inlet and the hot water inlet. In the above-mentioned double-handled coaxial temperature control valve core, the upper rotation adjustment part is used to open the mixed water outlet, and the lower rotation adjustment part is used to adjust the outlet water temperature.

The invention discloses a control method of a power storage water heater. The power storage water heater comprises a power storage module used for storing electric energy and a plurality of electric heating parts used for heating water. The control method comprises the step of shunting the current output by the power storage module so as to supply power to the corresponding electric heating parts.Constant-temperature hot water output is achieved so as to reduce the fluctuation range of output water temperature and improve user experience.

The invention discloses an instant heating water dispenser, which belongs to the technical field of water dispensers. The instant heating water dispenser mainly includes a water dispenser casing, a power control module is arranged inside the water dispenser casing, and an instant drinking water heater is arranged on the water channel connecting the bucket placement port and the drinking water output port, which is set correspondingly to the control panel. There is a control circuit board, the power supply control module supplies power to the control circuit board, and the control circuit board controls the drinking water instant heater. It also includes drinking water monitoring sensors, flow monitoring sensors, water pumps and water quality detection sensors. The invention can realize immediate heating of drinking water, can precisely control the outlet water temperature and the outlet water volume, can also detect the water quality, is convenient for people's water demand, and has the characteristics of safety, energy saving and intelligence.

The invention discloses a gas water heater and a control method thereof, belongs to the field of water heaters and the control method thereof, and is designed to solve problems such as difficult realization of existing devices. The gas water heater of the present invention includes a shell and a water pipe arranged in the shell, and a water flow servo is arranged at the water inlet end of the water pipe, and the water flow servo includes a water flow sensor, a stepping motor and a water regulating valve core; The water flow servo is used to adjust the water intake to the set value. The control method of the present invention based on the above-mentioned gas water heater is to continuously detect the water intake, and use the water flow servo to compensate the water flow when the value of the water intake deviates from the set value, and the gas valve is synchronously adjusted to ensure a constant outlet water temperature. The gas water heater of the invention can maintain a stable water intake, thereby ensuring a stable temperature of the water outlet from the water heater. The control method based on the above-mentioned gas water heater of the present invention is convenient to use, easy to operate and more accurate to control the outlet water temperature.

The invention relates to a heating disinfection method and a device for microalgae cultivating water and relates to a method and a device for treating water through heating. The heating disinfection method includes that the microalgae cultivating water is heated to 94 DEG C to 96 DEG C, the microalgae cultivating water is subjected to a continuous disinfection at the temperature between 94 DEG C to 96 DEG C for 20 seconds to 25 seconds, and the disinfected microalgae cultivating water can be used after being cooled. The device for implementing the method comprises a water inlet pump, a flow control valve, a heat exchanger and an electric heating furnace, wherein an outlet of the water inlet pump is connected with a heat exchange medium inlet of the heat exchanger through a first pipeline, a heat exchange medium outlet of the heat exchanger is connected with an inlet of the electric heating furnace through a second pipeline, an outlet of the electric heating furnace is connected with a material inlet of the heat exchanger through a third pipeline, and a material outlet of the heat exchanger leads to the outside through a fourth pipeline. The heating disinfection device further comprises a programmable logic controller (PLC) and a first to a fourth temperature sensor. The method is simple in steps and good in disinfection effects. The device can achieve an automation accurate control of the method.