30results about How to "Precise water temperature control" patented technology

The invention relates to an automobile engine tail gas waste-heat and electricity converting stand test device and method for controlling the same. The automobile engine tail gas waste-heat and electricity converting stand test device comprises an automobile engine unit, a waste-heat and electricity converting unit, an outputting and energy storing unit, a temperature detecting unit, a single-module patrolling unit and a main control unit and is characterize in that the automobile engine unit uses an automobile engine to drive a power generator to generate power to be combined to the three-phase commercial power and exhaust the high-temperature tail gas; the waste-heat and electricity converting unit absorbs the waste-heat from the tail gas and converts the waste-heat into the DC electricity; the outputting and energy storing unit changes the voltage of the generated DC electricity so as to supply the DC electricity to the load or store the DC electricity; the temperature detecting unit detects the temperature information of all the units; the single-module patrolling unit patrols the terminal voltages of waste-heat and electricity converting modules which are connected in parallel under each temperature gradient; and the main control unit detects the outputted voltage, the outputted current and other parameters, sends the control information and comprehensively manages the energy. The automobile engine tail gas waste-heat and electricity converting stand test device can simulate the automobile-mounted running environment and is suitable for the test and the research of the automobile engine tail gas waste-heat and electricity conversion.

The invention provides a water temperature control method of an instant heating type electromagnetic induction water heater. The method is that a flow sensor and a temperature sensor are arranged in a water heater water supply pipe to separately detect the flow velocity of water and the water inlet temperature and water outlet temperature of the pipe, a microprocessor CPU is used to process the obtained data, the CPU calculates the desired power for the set water temperature, the output power of a power output circuit is controlled to provide for an electromagnetic heating coil; and the temperature of water in the pipe is maintained to an advance control mode. The invention has the advantages that compared with the traditional PID control method, the control method of the invention adopts not postponing control but advance control and the desired control power is accurately calculated at the water inlet. Therefore, water temperature control is accurate and fast without causing incidents and the method of the invention is convenient for the user to adopt.

The invention discloses a tea making machine capable of automatically making tea water with better taste. The tea making machine comprises a water supply unit, a tea making unit, a tea water outlet unit and a control unit, wherein the tea making unit comprises a water container, a water permeable vessel and a cover, and the water permeable vessel is detachably arranged in the water container; the contact unit comprises an intelligent control module, an input module, a storage module and an acousto-optic prompting module, and the input module, the storage module and the acousto-optic prompting module are respectively and electrically connected with the intelligent control module; and the tea making machine also comprises a first temperature control device and a first liquid level sensor which are arranged in the water container and are respectively and electrically connected with the intelligent control module.

The invention provides a control kernel of an intelligent shower system and a control method, and provides the intelligent shower system which is compact in structure, small in size, uniform in output water temperature and capable of independently regulating and controlling the water output amount of each water output device and a control method. The control kernel comprises a shell, a temperature regulation system, a flow regulation system, a mixed water cavity and an intelligent control system. The intelligent control system is used for receiving a control request and controlling the intelligent shower system according to the control request, so that the states of the temperature regulation system and the flow regulation system are changed.

The invention discloses a tea making machine which not only can repeatedly brew tea to further save tea or sufficiently exert the aroma of tea, but also can quickly change another kind of tea under the premise of not being tainted by other odor to further meet the requirements of different tea drinker. The tea making machine comprises a water supply unit, a tea making unit and a control unit. The control unit comprises an intelligent control module, and input and output module, a storage module and an acousto-optic prompt module, and the input and output module, the storage module and the acousto-optic prompt module are electrically connected with the intelligent control module respectively. The tea making unit comprises a plurality of tea making cups with the same structure, each tea making cup is provided with a tea making chamber and a tea water storage chamber, the tea water storage chamber is provided with a water outlet, and a valve for controlling the communication of the tea making chamber and the tea water storage chamber is arranged between the tea making chamber and the tea water storage chamber. The tea making chamber is communicated with a water outlet of the water supply unit.

The invention relates to a water temperature control method of a cold and hot water double-inlet washing machine. The water temperature control method is characterized in that a cold water inlet valve and a hot water inlet valve are arranged and are constant-flow water inlet valves, wherein a temperature sensor is arranged in a washing bucket; a controller is used for setting fixed total water inlet time every time of the cold water inlet valve and the hot water inlet valve; the controller calculates a cold water inlet temperature and a hot water inlet temperature according to water temperatures in the washing bucket of the washing machine before and after adding water; then the controller calculates a ratio of desired inlet cold water to desired inlet hot water by using the known cold water inlet temperature, the hot water inlet temperature and the water temperatures in the washing bucket, and converts the ratio into a turn-on time ratio of the cold water inlet valve to the hot water inlet valve every time; and the controller controls the turn-on time of the cold water inlet valve and the hot water inlet valve so as to control the water temperature. According to the water temperature control method of a cold and hot water double-inlet washing machine, the accuracy of water temperature control of the cold and hot water double-inlet washing machine is improved, the washing degree of clothes is increased, the energy consumption is saved, and the washing time is shortened simultaneously.

The invention discloses a method for controlling the temperature of engine coolant, and aims to achieve the purpose. According to the technical scheme, the method for controlling the temperature of the engine coolant comprises the following steps: step 1, carrying out automatic system checking; step 2, acquiring an engine rotating speed signal, an engine load signal, an exhaust air-fuel ratio signal, an intake air temperature signal, a water temperature signal, a vehicle speed signal and an engine knocking signal in real time; step 3, establishing an exhaust temperature model and an engine knocking model; step 4, calculating the exhaust temperature condition of an engine in real time by the exhaust temperature model, and calculating the condition of an engine knocking receding angle by theengine knocking model; and step 5, outputting a control signal to an electronic thermostat according to calculated results. By the method, direct relation between the temperature of the coolant and the combustion state of the engine can be established, accurate control is implemented, the fuel economy is low, meanwhile, the temperature of the engine is prevented from being over high, parts of theengine are protected, and the electronic thermostat controls water temperature efficiently, accurately and stably.

The invention relates to a health energy saving intelligent drinking water dispenser, which solves the problems of high energy saving, bad water quality, easy water fouling, inexact water temperature, wherein a raw water storage sink (1) communicates with a heating liner (6) in the case, and a solenoid valve (5) is arranged on the cold water filling pipe (4); a heating body (10) is connected with an electronic switch (19) in the heating liner (6) with a water temperature sensor (11) and a first water level sensor (12); a water pump (13) is arranged on a hot water filling pipe (22), and a second water level sensor (15) is arranged at the bottom of the heat preservation water storage liner (7); the input of the input interface (32) of the control circuit plate is respectively connected with a keyboard (36), a first and a second water temperature sensors, a water level sensor, while the output end of the output interface (34) is respectively connected with the solenoid valve, the water pump and the electronic switch.

The invention provides a method and device for controlling water boiling temperature. The method includes the steps of: determining a first difference value between an initial temperature of water to be boiled and a preset mode temperature; according to a relation between the first difference value and a first temperature constant, determining a first heating time length; after heating the water to be boiled for the first heating time length, determining a first current temperature of the water to be boiled; stopping heating the water to be boiled and recording a second current temperature of the water to be boiled after a first preset time length; determining a water temperature increment between the first current temperature and the second current temperature; and utilizing the water temperature increment to prejudge a heating time length, and controlling heating temperature of the water to be boiled. The method and device for controlling the water boiling temperature provided by the invention can reduce influence of an output power change on temperature control, and solve the problem of excessive heating.

The invention relates to a product for babies, in particular to an infant shower nozzle, and aims to provide the infant shower nozzle which is convenient to use, can be used for easily controlling the water temperature and can be operated to complete the synchronous movement of water flow in a nozzle along the rubbing of the hand of a parent by one hand. The infant shower nozzle consists of a hand ring (1), a water inlet (2), the nozzle (3), a switch (4), a temperature indicator (5), a fine adjusting valve (6) and a fine adjusting switch (7). Firstly, the water temperature is subjected to coarse adjustment by the color displayed by the temperature indicator (5); then the water temperature is subjected to fine adjustment by the fine adjusting valve (6) and the fine adjusting switch (7) to reach the most suitable temperature; and finally, the infant shower nozzle is sleeved on the wrist by the hand ring (1), so that the water flow sprayed from the nozzle (3) can move along the movement of the hand of the parent and a baby is massaged when being rubbed. The infant shower nozzle has the beneficial effects that the infant shower nozzle has reasonable design and simple structure, is convenient to use, is rapid and accurate to control the water temperature and can be used for massaging the baby when rubbing the baby.

A full-automatic electric heating faucet comprises a water inlet, a heating cavity and a water outlet, wherein a heating pipe is arranged in the heating cavity; the faucet is characterized in that the heating cavity communicates with the water outlet by the aid of a water outlet cavity, and an electromagnetic stop valve is arranged between the water outlet cavity and the water outlet. The electromagnetic stop valve is a piston rod driven by an electromagnet, and the piston rod penetrates through and is inserted in the water outlet cavity. The faucet has the beneficial effects as follows: 1) the faucet is switched on and off through electric control, a mechanical operation structure and a switching signal conversion structure are simplified, and control operation is convenient; 2) multiple temperature control protection is realized, and the heating pipe is prevented from being damaged due to parching; 3) the faucet and a control system are integrally molded, and the appearance is neat and attractive; 4) uniform and quantitative water discharging is realized, thus, the water temperature control is more accurate, the heating pipe works more stably, and the service life is guaranteed.

The invention discloses a household portable epidemic prevention ventilator which specifically comprises a humidifying box body, a ventilator body, an air suction mask and a water tank, wherein a connecting part is arranged on one side of the humidifying box body; the ventilator body is installed on the side, away from the humidifying box body, of the connecting part; a control panel is installedat one end of the ventilator body; a turbine motor is mounted in the middle of the interior of the ventilator body; a cover is hinged to the side, close to the connecting part, of the top end of the humidifying box body; and a rubber sealing ring is mounted at the edge of the bottom end of the cover. According to the household portable epidemic prevention ventilator, through the arrangement of a temperature sensor, a heating sheet and a conducting sheet, a temperature control loop composed of the control panel, a connector groove, the temperature sensor, the heating piece and the heat conducting piece can control the temperature in a water tank in real time, the temperature sensor is designed to be internally arranged, and therefore water temperature detection is more accurate, and water temperature control is more accurate.

The invention belongs to the technical field f infant articles and relates to a formula milk quick measuring and blending device. A piston button is pressed and warm water in a water measuring cavityflows downward. The warm water pushes a water inlet conical plug to plug a water inlet hole. The warm water pushes away a water outlet conical plug and flows into a milk bottle via a water outlet holeafter flowing through a gap between the water outlet conical plug and a water outlet plug cavity. The piston plug is released and a spring pushes a piston assembly to translate upward. External air pushes the water outlet conical plug to plug an inlet / outlet hole. Warm water in a constant temperature water tank flows through a water pipeline, pushes away the water inlet conical plug and flows into the water measuring cavity. A spiral propeller rotates and helical blades push milk powder to an outlet port from a discharge port. The milk powder bursts from a lower opening of a sealing device and spreads uniformly, and falls into the milk bottom in the below. The device provided by the invention saves time and is accurate in water temperature control so as to avoid nutrition loss and avoid discomfort of infants due to too high or too low water temperature. Warm water and milk powder are blended together in a quantitative way quickly and accurately, so that waiting time of a crying infantis reduced substantially.

The invention provides a tea making machine. The tea making machine comprises a shell, a heating cavity for receiving and heating water, a brewing container being communicated with the heating cavityand defininga brewing cavity for brewing tea leaves, a receiving pot beingcommunicated with the brewing container and beingused for receiving brewed tea water from the brewing cavity, and control devices. The heating cavity, the brewing container and the receiving pot are sequentially arranged on the shell from top to bottom; and water is heated by the heating cavity and then sequentially flows into the brewing container and the receiving pot. The control devices comprise a first water outlet control device, a second water outlet control device, a temperature sensor and a controller; and the first water outlet control device, the second water outlet control device and the temperature sensor are electrically connected with the controller. According to the technical scheme, the automatic teamaking machine is simple in structure and accurate in water temperature.

The invention discloses an electric-energy-saving slicing cooling water circulation system, which comprises a refrigeration machine, an electromagnetic valve, a slicing machine, a control device and a temperature sensor. The electric-energy-saving slicing cooling water circulation system is characterized in that the refrigeration machine is connected with the slicing machine through a pipeline, the electromagnetic valve is arranged on the pipeline, the control device is arranged in the slicing machine, and is connected with a binding post of the electromagnetic valve through an electric wire, the temperature sensor is arranged in the slicing machine, and a binding post of the temperature sensor is connected onto the control device through an electric wire. The electric-energy-saving slicing cooling water circulation system has the advantages that the structure is simple, the electricity consumption is low, the cost is low, the temperature of a chip mounter is controlled through the electromagnetic valve, and the water temperature control is more precise.

The invention relates to a water temperature control method of a cold and hot water double-inlet washing machine. The water temperature control method is characterized in that a cold water inlet valve and a hot water inlet valve are arranged and are constant-flow water inlet valves, wherein a temperature sensor is arranged in a washing bucket; a controller is used for setting fixed total water inlet time every time of the cold water inlet valve and the hot water inlet valve; the controller calculates a cold water inlet temperature and a hot water inlet temperature according to water temperatures in the washing bucket of the washing machine before and after adding water; then the controller calculates a ratio of desired inlet cold water to desired inlet hot water by using the known cold water inlet temperature, the hot water inlet temperature and the water temperatures in the washing bucket, and converts the ratio into a turn-on time ratio of the cold water inlet valve to the hot water inlet valve every time; and the controller controls the turn-on time of the cold water inlet valve and the hot water inlet valve so as to control the water temperature. According to the water temperature control method of a cold and hot water double-inlet washing machine, the accuracy of water temperature control of the cold and hot water double-inlet washing machine is improved, the washing degree of clothes is increased, the energy consumption is saved, and the washing time is shortened simultaneously.

The invention provides a method and device for controlling water boiling temperature. The method includes the steps of: determining a first difference value between an initial temperature of water to be boiled and a preset mode temperature; according to a relation between the first difference value and a first temperature constant, determining a first heating time length; after heating the water to be boiled for the first heating time length, determining a first current temperature of the water to be boiled; stopping heating the water to be boiled and recording a second current temperature of the water to be boiled after a first preset time length; determining a water temperature increment between the first current temperature and the second current temperature; and utilizing the water temperature increment to prejudge a heating time length, and controlling heating temperature of the water to be boiled. The method and device for controlling the water boiling temperature provided by the invention can reduce influence of an output power change on temperature control, and solve the problem of excessive heating.

The invention discloses a constant-temperature shower device. The constant-temperature shower device comprises a water temperature adjustment assembly, a constant-temperature pipe, a bent pipe and a shower head, wherein a water temperature adjustment valve is arranged in the water temperature adjustment assembly; the constant-temperature pipe is hermetically connected to one side of the temperature adjustment assembly; the constant-temperature pipe is a hollow structure with one open end, and used for further mixing hot water with cold water; the bent pipe is hermetically connected to one end of the constant-temperature pipe; and the shower head is hermetically connected to the tail end of the bent pipe. The constant-temperature shower device is simple in structural design, convenient to use, accurate in water temperature control, capable of meeting the market use need, and beneficial to product popularization.

The invention discloses a simple constant temperature shower head which comprises a water inlet pipe, a control valve, a temperature control pipe, a heating control device, a heating pipe, a hose and a shower head body. The lower end of the control valve is in sealed connection with the water inlet pipe. The water outlet end of the control valve is in sealed connection with the water inlet end of the temperature control pipe. A heating pipe is arranged inside the temperature control pipe. By controlling the heating pipe, the temperature of water entering the temperature control pipe is adjusted; the water outlet end of the temperature control pipe is sealed and sleeved connection with one end of the hose, and the other end of the hose is in sealed and sleeved connection with the shower head body. The simple constant temperature shower head is simple in structural design, convenient to use, accurate in water temperature control, capable of meeting the requirement of market application and capable of achieving product popularization conveniently.

The invention discloses a tea making machine which not only can repeatedly brew tea to further save tea or sufficiently exert the aroma of tea, but also can quickly change another kind of tea under the premise of not being tainted by other odor to further meet the requirements of different tea drinker. The tea making machine comprises a water supply unit, a tea making unit and a control unit. Thecontrol unit comprises an intelligent control module, and input and output module, a storage module and an acousto-optic prompt module, and the input and output module, the storage module and the acousto-optic prompt module are electrically connected with the intelligent control module respectively. The tea making unit comprises a plurality of tea making cups with the same structure, each tea making cup is provided with a tea making chamber and a tea water storage chamber, the tea water storage chamber is provided with a water outlet, and a valve for controlling the communication of the tea making chamber and the tea water storage chamber is arranged between the tea making chamber and the tea water storage chamber. The tea making chamber is communicated with a water outlet of the water supply unit.

The invention relates to an automobile engine tail gas waste-heat and electricity converting stand test device and method for controlling the same. The automobile engine tail gas waste-heat and electricity converting stand test device comprises an automobile engine unit, a waste-heat and electricity converting unit, an outputting and energy storing unit, a temperature detecting unit, a single-module patrolling unit and a main control unit and is characterize in that the automobile engine unit uses an automobile engine to drive a power generator to generate power to be combined to the three-phase commercial power and exhaust the high-temperature tail gas; the waste-heat and electricity converting unit absorbs the waste-heat from the tail gas and converts the waste-heat into the DC electricity; the outputting and energy storing unit changes the voltage of the generated DC electricity so as to supply the DC electricity to the load or store the DC electricity; the temperature detecting unit detects the temperature information of all the units; the single-module patrolling unit patrols the terminal voltages of waste-heat and electricity converting modules which are connected in parallel under each temperature gradient; and the main control unit detects the outputted voltage, the outputted current and other parameters, sends the control information and comprehensively manages the energy. The automobile engine tail gas waste-heat and electricity converting stand test device can simulate the automobile-mounted running environment and is suitable for the test and the research of the automobile engine tail gas waste-heat and electricity conversion.

The invention provides a water pump box of a household central air conditioner, which is connected between the outdoor main unit and the indoor unit, and has a heat exchanger, a pump body, and a water supply pipe connected to the water supply pipe of the indoor unit in the water storage tank. The gas is connected, and the heat exchanger has a condenser pipe and a return pipe. One end of the return pipe is directly opened at the bottom of the tank, and part of the condenser pipe is built in the return pipe. The pump body is a submersible pump installed at the bottom of the water storage tank. The submersible pump It has a suction port and a water outlet, and the water outlet is connected to the water supply pipe; the return pipe and the water supply pipe respectively have valve bodies that can block or connect the fluid in them; the valve bodies are opened or closed at the same time. The invention adopts the spiral casing heat exchanger, which has low cost and stronger adaptability; compact structure, smaller volume, and more convenient installation. In addition, a multi-pipe heat exchanger can be used to achieve better energy-saving effect.

The invention relates to a vacuum furnace for sapphire crystal growth. The vacuum furnace is designed to mainly solve the problems of high probability of thermal disturbance and high instability of temperature field of present vacuum furnaces for the sapphire crystal growth. The furnace comprises a furnace body, a water inlet valve, a flow meter, a vacuum system, a furnace cover, outlet water flow meters, electrodes, an observation hole, a crystal pulling mechanism, a lower heat shield, a lateral heat shield, an upper heat shield, a crucible, a heating body, a crucible tray, a tray top column, a water outlet pipeline and a water collecting tank; and a water collecting control tank is provided with a water inlet tube and is connected with the water collecting tank through a pipeline provided with an adjusting valve, a heat exchanger in the water collecting control tank is connected with a refrigerating machine through a pipeline provided with a refrigeration valve, a temperature control device is arranged in the water collecting control tank, and the water collecting control tank is connected with a water inlet valve at the center of the bottom of the furnace through a pipeline provided with a water pump and a control flow meter. The vacuum furnace disclosed in the invention can reduce the disturbance probability and instability of the temperature field, and ensures the stable and ideal temperature field for the sapphire crystal growth.

The present invention discloses a technical scheme adopted in the present invention in order to achieve the above purpose: the engine coolant temperature control method: step 1, system self-inspection; step 2, real-time acquisition of engine speed signal, engine load signal, exhaust air-fuel ratio signal, intake air temperature signal, water temperature signal, vehicle speed signal and knock signal; step 3, establish exhaust temperature model and knock model; step 4, calculate engine exhaust temperature in real time through the exhaust temperature model, and calculate knock through the knock model Angle retreat; step 5, output a control signal to the electronic thermostat according to the calculation result. With this method, the coolant temperature can be directly linked to the combustion state of the engine, the control is more accurate, and the fuel economy is lower. More efficient, accurate and stable.

The invention relates to a piezoelectric self-heating faucet. The piezoelectric self-heating faucet comprises a faucet body (17), piezoelectric ceramics (14), a heating pipe (12) and an electricity storage assembly, wherein a heating cavity (7) used for placing the heating pipe (12) is formed inside the faucet body (17), the piezoelectric ceramics (14) are arranged on the inner wall of the heatingcavity (7) in the circumferential direction, a water inlet (13) is formed in the bottom of the faucet body (17), a water outlet (9) is formed in the side wall of the faucet body (17), a water inlet cavity (18) is formed between the water inlet (13) and the heating cavity (7), a water outlet cavity (6) is formed between the heating cavity (7) and the water outlet (9), a control valve (16) for controlling water outflow of the water outlet cavity (6) is arranged in the faucet body (17), and the piezoelectric ceramics (14) and the heating pipe (12) are both electrically connected with the electricity storage assembly. Compared with the prior art, water pressure can be used for power generation by the piezoelectric self-heating faucet, cold water is heated, instant heating is achieved when inuse, and constant temperature and energy conservation are achieved.

The invention discloses a novel shower head. The novel shower head comprises a cold water inlet connector, a hot water inlet connector, a water temperature control valve, a shower head body, a shower rose, heating pipes and an insulation cover. The two sides of the lower end of the water temperature control valve are in sealed connection with the cold water inlet connector and the hot water inlet connector separately, the side face of the water temperature control valve is in sealed connection with the shower head body, the shower rose is arranged at the tail end of the shower head body, the shower head body sleeves the insulation cover, and the heating pipes are embedded in the insulation cover. Water in the shower head body is heated by the heating pipes for water temperature control. The novel shower head is simple in structural design, convenient to use and accurate in water temperature control and meets market usage requirements, and product popularization is facilitated.