4867 results about "Water heater" patented technology

Disclosed is a water heater including a case provided with an air supply hole and an air discharge hole, a burner provided in an interior of the case, and a humidified air supply part that provides humidified air to the burner together with a fuel. The humidified air supply part includes a first accommodation tank that accommodates water to generate vapor, and a humidified air supply tank that provides a space for supplying the vapor supplied from the first accommodation tank to air introduced into an interior of the case through the air supply hole.

A hose assembly for use with a tankless water heater. The hose assembly includes a flexible hose, a first connector assembly, and a second connector assembly. The first connector assembly is fluidly coupled with the flexible hose and includes a first fitting. The first fitting is rotatably coupled with the first connector assembly such that the first fitting is independently rotatable relative to the flexible hose. The second connector assembly is fluidly coupled with the flexible hose opposite to the first connector assembly.

The invention discloses a water heater and a control method thereof, and relates to the technical field of water heaters. The condensing heat exchanger has a water collecting cavity; the atomization module is arranged in the water collecting cavity; the water path switching assembly is arranged among the water inlet main pipe, the main heat exchanger and the condensing heat exchanger, has a first working mode and a second working mode, and is used for sequentially communicating the water inlet main pipe, the condensing heat exchanger and the main heat exchanger to form a first flow path in the first working mode; in the second working mode, the water inlet header pipe communicates with the main heat exchanger to form a second flow path, and the water inlet end and / or the water outlet end of the condensation heat exchanger are / is disconnected from the second flow path; according to the condensation gas water heater, condensed water is discharged along with flue gas after being atomized, meanwhile, the water inlet path is switched through the water path switching assembly, and the problems that in the efficient flue gas waste heat recovery process of an existing condensation gas water heater, the condensed water generated is inconvenient to discharge, a pipeline is prone to being corroded, or frequent manual intervention is needed can be solved.

An on-demand water heater (12) includes a heat exchanger (25). Water is supplied to the water heater from a water source such as a well pump (16) or other source of water. The water supplied to the water heater is treated by at least one water conditioner 18. A plurality of electrical heating elements (26, 28, 30, 32) are supplied with electrical power from rechargeable battery pack (46). At least one circuit (48) is operative to control the delivery electrical power from the battery pack to the heating elements to provide for the delivery of heated water at a set temperature from the water heater. The battery pack of the water heater is recharged from an available supply of house current electrical power. The rechargeable battery pack of the exemplary water heater also provides an auxiliary source of electrical power for other devices in circumstances when electrical power from a usual supply source becomes unavailable.

The invention discloses a condensation-free efficient heat exchange control method and system for a full-premixing water heater, and the method comprises the steps: collecting the multi-source information, such as air inlet temperature, humidity, gas flow, flue gas oxygen concentration and wall temperature, in real time, calculating a predicted dew point based on a dynamic dew point prediction model, and setting a dynamic safety boundary; the condensation risk is judged by comparing the wall temperature with the safety boundary, and active intervention is carried out in a staged cooperation mode that fuel gas and air volume are continuously adjusted firstly and then a partial combustion zone sectioning valve is rapidly turned off; the system comprises a main controller, a mesh-shaped infrared radiation burner, a sectional valve assembly, a gas proportional valve, a frequency conversion fan and related sensors. According to the invention, the system runs close to the condensation boundary through intelligent control, and the advantage of high operation heat efficiency is realized on the premise of ensuring high reliability.

The invention discloses a control method of a gas water heater, the gas water heater and a storage medium. The method comprises the steps that the gas water heater is controlled to be shut down; a fan in the gas water heater is controlled to execute post-cleaning operation, and whether a water using signal of the gas water heater exists or not is detected; when the water consumption signal is detected, the fan is controlled to stop executing post-cleaning operation, and the gas water heater is controlled to execute ignition operation; and when the water consumption signal is not detected, the fan is controlled to maintain execution of post-cleaning operation until the operation duration of the post-cleaning operation is longer than the target duration. The invention aims to effectively shorten the restarting time of the gas water heater after the gas water heater is shut down and ensure the use safety of equipment at the same time.

A packaging system for a hot water heater includes an outer box, a top insert, an offset filler, a base insert, and one or more side panels. The top insert contacts a top surface of the hot water heater and a top inside surface of outer box. The offset filler is coupled to the top insert and is sandwiched between the hot water heater and the outer box. The base insert contacts the bottom surface of the hot water heater and a bottom inside surface of the outer box. The base insert includes raised perimeter structures that form a shape that matches a shape of the bottom surface of the hot water heater. Each side panel includes a raised pattern.

The invention relates to the technical field of water heater control, and discloses a control method of a gas water heater, a controller and the gas water heater, and the control method comprises the steps that in response to a starting request of the gas water heater, the gas water heater is controlled to operate based on a preset feedforward control algorithm; real-time water flow of the gas water heater is obtained, and first delay duration corresponding to the real-time water flow is determined based on the real-time water flow and a first preset relation table; and if the duration for controlling the gas water heater to operate based on the preset feedforward control algorithm reaches the first delay duration, the gas water heater is controlled to operate based on the preset feedback control algorithm. According to the invention, the opportunity of switching to the preset feedback control algorithm from the preset feedforward control algorithm is dynamically determined based on the real-time water flow, so that the temperature of the system can be rapidly raised to be near the set temperature through feedforward control after the system is started, and then the system is switched to the preset feedback control algorithm in time for feedback adjustment; therefore, the constant-temperature precision can be timely improved while the response speed is guaranteed, and the constant-temperature effect is improved.

The invention belongs to the related technical field of welding, and particularly discloses an air energy water heater water tank inner container welding device which comprises a first machine base, a motor driving device, an industrial camera, a lifting machine and a second machine base, a lead screw loading table is arranged above one end of the first machine base, and a lead screw is rotationally arranged on the inner side of one end of the lead screw loading table; the lead screw is connected with an output shaft of the motor driving device, a sliding base is slidably installed outside the lead screw loading table and is in threaded fit with the lead screw, the lifting machine is arranged on the upper surface of the sliding base, a plasma welding gun is connected to the outer side of the lifting machine through an arranged movable frame rod, and the second machine base is arranged on one side of the outer wall of the first machine base. A pipe fixing mechanism is arranged on the upper surface of the second machine base, a frame base is arranged at the position, close to the middle, of the upper surface of the second machine base, and hanging and pulling mechanisms are arranged at the two ends in the frame base correspondingly.

A water heater and a method for heating water using various power sources and enhancing energy savings are disclosed. The water heater includes a first heating element within an inlet pipe. The first heating element draws energy from a first power source to heat water to a first temperature. The water heater further includes a second heating element within an outlet pipe. The second heating element draws power from a second power source to heat water from the first temperature to a second temperature. Optionally, when the second power source is unavailable or insufficient, then the second heating element draws power from a third power source to heat water from the first temperature to the second temperature.

The invention discloses an air energy water heater control system based on remote monitoring of the Internet of Things, which comprises a data acquisition and preprocessing module used for acquiring and preprocessing multi-source real-time data of an air energy water heater to generate a data set; the conditional variation auto-encoder prediction module is used for inputting the data set into a conditional variation auto-encoder model to generate prediction data; the control parameter optimization module is used for carrying out multi-neighborhood disturbance search by adopting a variable neighborhood search algorithm according to the prediction data and outputting an optimal control strategy; the control instruction issuing and executing module is used for issuing an optimal control strategy and controlling the terminal to execute heating, heat preservation and closing operations; and the operation feedback and model adaptive optimization module is used for collecting operation feedback data and realizing adaptive updating and closed-loop control of model parameters. Intelligent analysis, prediction and self-adaptive remote regulation and control of the air energy water heater are achieved, and the energy saving performance and the use comfort degree are improved.

The invention provides a control method of an air conditioner heat recovery system, the air conditioner heat recovery system and a computer readable storage medium. The method comprises the steps that the water temperature of a water heater and the indoor environment temperature at the current moment are obtained; according to the water temperature of the water heater and the indoor environment temperature, the operation mode of the air conditioner heat recovery system is determined, and the first operation mode is a mode that the air conditioner is in a refrigeration mode and does not heat the water heater; the second operation mode is a mode in which the air conditioner is in a refrigeration mode and heat released by a refrigerant of the air conditioner is completely used for heating the water heater, and the third operation mode is a mode in which the air conditioner is in the refrigeration mode and part of heat released by the refrigerant of the air conditioner is used for heating the water heater; and controlling the air conditioner heat recovery system to operate in the operation mode. According to the method, through switching of multiple operation modes of the system, condensation heat can be recovered to reserve domestic hot water in advance while intelligent regulation and control of the indoor temperature are achieved, and effective utilization of heat energy of the whole house is achieved.

A water heating system includes a first heating chamber arranged in parallel with a second heating chamber; a first temperature sensor positioned to sense a first temperature in the first heating chamber; a second temperature sensor positioned to sense a second temperature in the second heating chamber; and a controller configured to: determine a first temperature value based on a first sensor signal from the first temperature sensor, determine a second temperature value based on a second sensor signal from the second temperature sensor, compute a differential between the first temperature value and the second temperature value, determine that scale buildup is indicated in response to the differential exceeding a first threshold, and initiate a corrective action in response to determining that scale buildup is indicated.

The embodiment of the invention discloses a water heater constant temperature control method, device and equipment based on environmental parameters and a medium, and relates to the technical field of water heaters. The method comprises the following steps: sending an environment parameter acquisition request to a cloud server; receiving the geographical environment parameters returned by the cloud server; and adjusting parameters used for constant temperature control are generated based on the geographical environment parameters, and the gas water heater is controlled to operate based on the adjusting parameters. The cloud server analyzes the geographic position according to the IP address of the water heater, obtains the environmental parameters and issues the environmental parameters to the local equipment to generate the adjustment parameters. According to the method, the traditional hardware sensor is replaced by the data service, so that the cost and the maintenance difficulty are remarkably reduced, and the system reliability is improved. By integrating real-time weather and pipe network data, the system can deal with environment sudden change in a prospective manner, the crossing from static presetting to dynamic self-adaptive control is realized, and finally a high-precision and high-stability constant-temperature control effect is achieved.

The utility model belongs to the technical field of water heaters, and particularly discloses a gas water heater which comprises a water inlet pipe, a heat exchanger and a water outlet pipe which are sequentially communicated in the water flow direction, and further comprises a water mixing tank and a bypass pipe, the water mixing tank is arranged on the water outlet pipe, and a water inlet, a bypass water inlet and a water outlet are formed in the water mixing tank. The water inlet is used for being communicated with the water outlet end of the heat exchanger, the water outlet is communicated with the water using end through the water outlet pipe, the two ends of the bypass pipe are communicated with the bypass water inlet and the water inlet pipe respectively, a bypass valve used for adjusting the water flow is arranged on the bypass pipe, and the vertical distance H1 between the bypass water inlet and the water inlet is larger than the vertical distance H2 between the bypass water inlet and the water outlet. According to the gas water heater disclosed by the utility model, on the basis of solving the problem of water stop temperature rise during secondary starting, the outlet water temperature in the water stop temperature drop stage can be improved, and the structure of the water mixing tank is simplified while the water stop temperature drop is effectively improved.

The present invention relates to a heat exchanger assembly and a water heater comprising same, wherein the heat exchanger assembly comprises a heat exchanger unit provided with an inlet for introducing a fluid and an outlet for discharging the fluid, and the heat exchanger unit may comprise: a first plate; a second plate disposed on one surface side of the first plate to define, together with the first plate, an internal space in which the fluid introduced through the inlet moves toward the outlet; a heat generation member coupled to at least one of the first plate and the second plate and provided to provide heat into the internal space; and a guide part disposed in the internal space and provided to guide the fluid introduced through the inlet toward one plate, to which the heat generation member is coupled, of the first plate and the second plate.

The invention discloses a fire grate, a combustor and a water heater, and relates to the technical field of water heaters, the fire grate comprises a fire grate body and a combustion head, the fire grate body is provided with a mixing cavity and at least two air inlet flow channels, the mixing cavity is provided with a fire opening, the exhaust ends of the at least two air inlet flow channels are communicated with the mixing cavity, and the combustion head is communicated with the mixing cavity. The gas inlet end of each gas inlet flow channel forms an injection opening, each injection opening is used for conveying gas and air to the corresponding gas inlet flow channel, the combustion head is arranged on the fire opening, and the combustion head is provided with a plurality of fire holes communicated with the mixing cavity. According to the technical scheme provided by the invention, the primary air coefficient of the fire grate can be increased, the overall high temperature of the combustion head is prevented, and the flame distribution of the combustion head is more uniform, so that the local high temperature of the combustion head is avoided, the generation of thermal nitrogen oxides can be greatly reduced, and the emission of harmful substances is reduced.

The invention discloses an electric water heater performance testing system and method based on constant-temperature water supply control, and relates to the technical field of electric water heater testing. A dynamic behavior input model reflecting family multi-member, continuous and non-uniform water consumption behavior characteristics is established through a behavior script input flow Seq; the method comprises the following steps: constructing a structured test data set Dset by using response data collected by a multi-channel sensor, and performing pairing analysis based on the structured test data set Dset and a behavior script input stream Seq; key response performance data such as a temperature stability index, a response time delay index, an energy consumption change rate index, a flow fluctuation range index and a water outlet interruption ratio index can be quantitatively output, and a multi-dimensional performance evaluation report of the electric water heater can be finally generated. Therefore, the system evaluation of the response capability, the temperature control accuracy, the energy consumption performance and the water supply stability of the electric water heater under variable, continuous and approximately real use conditions is realized.

The invention discloses a fire grate, a combustor and a water heater, and relates to the technical field of water heaters, the fire grate comprises a fire grate body, the fire grate body is provided with a mixing cavity, a first air inlet flow channel and a second air inlet flow channel, the mixing cavity is provided with an air outlet, and the air inlet end of the first air inlet flow channel is provided with an injection opening used for introducing air and fuel gas; the exhaust end of the first air inlet flow channel is communicated with a mixing cavity, the air inlet end of the second air inlet flow channel is provided with an air inlet used for introducing air, the exhaust end of the second air inlet flow channel is communicated with the first air inlet flow channel, and the second air inlet flow channel is used for jetting flow to the first air inlet flow channel. A jet flow angle is formed between the jet flow direction of the second gas inlet flow channel and the gas conveying direction of the first gas inlet flow channel, and the jet flow angle is larger than 45 degrees and not larger than 70 degrees. And the combustion head part is arranged at the air outlet, and the combustion head part is provided with a fire hole communicated with the mixing cavity. According to the technical scheme provided by the invention, emission of carbon monoxide and nitrogen oxide can be reduced.

The invention relates to a flameout control method, system and equipment for a gas heating water heater and a medium. The gas heating water heater comprises a sealed combustion system, a Venturi mixer and a pneumatic gas valve which are sequentially communicated, and a command valve of the pneumatic gas valve is connected to an air purification bin of the sealed combustion system through an air pressure pipe. The method comprises the following steps: in a whole machine debugging stage, setting the pressure of a zero-position adjusting spring of a command valve of the pneumatic gas valve to be a negative value; in the operation stage of the water heater, whether the combustion flame is out of flame or not is determined based on the ratio of the gas flow to the air flow; the pneumatic gas valve is closed by the controller in response to a combustion flame off-flame stall. When the smoke pipe is seriously blocked, the pneumatic gas valve can be closed, so that the whole machine is shut down, and the gas heating water heater is protected.

A fan assembly and a gas water heater. The fan assembly comprises: a fan housing (10), the fan housing (10) being provided with a volute air channel (101), and the volute air channel (101) having a volute inlet (1011) and a volute outlet (1012); and a freeze protection device (50), the freeze protection device (50) comprising an air pipe (51) and a blade (52), the air pipe (51) being connected to the fan housing (10) and being communicated with the volute outlet (1012), at least a part of the air pipe (51) being integrally formed with the fan housing (10), and the blade (52) being connected to the air pipe (51) and being configured to be unidirectionally opened in the air outlet direction of the volute air channel (101).

The invention discloses a water heater and an anti-corrosion design method thereof, and the water heater comprises an inner container which comprises a metal tank body and a first insulating layer covering the inner wall of the metal tank body; the metal part is arranged in the inner container and is electrically connected to the metal tank body; the anti-corrosion assembly comprises an electronic anode which extends into the inner container; the direct current power supply module comprises a positive electrode electrically connected to the electronic anode and a negative electrode electrically connected to the metal tank body, and is configured to load weak current voltage between the metal tank body and the electronic anode; the total area of the exposed metal surface, making direct contact with water in the inner container, of the metal part is smaller than or equal to 0.5 m < 2 >. The direct-current power supply module loads weak current voltage between the metal tank body and the electronic anode and between the metal part and the electrode anode, so that the anti-corrosion requirement of the inner container and the metal part can be met, the risk of hydrogen evolution explosion is reduced, the potential safety hazard of electric leakage of an anti-corrosion assembly is reduced, and the electric control design difficulty of the water heater is further reduced.

The utility model relates to the field of electric water heaters, and provides an energy storage box and an electric water heater, the energy storage box comprises a water tank and an exhaust channel, the water tank is provided with a closed inner cavity, the inner cavity is used for storing energy storage liquid, the water tank comprises a front face and a back face which are opposite, and the two opposite ends of the exhaust channel are respectively provided with an air inlet and an air outlet. The air inlet is located in the water tank and communicated with the inner cavity, the height of the air inlet is larger than that of the liquid level of the energy storage liquid, and the exhaust port extends towards the back face and is communicated with the atmosphere. According to the energy storage box, air in the inner cavity can be exhausted through the exhaust channel, normal air pressure in the inner cavity is guaranteed, meanwhile, the air in the inner cavity is exhausted towards the back face through the exhaust channel, and harm of steam to a user can be prevented.

The invention discloses a steam reheating system and a heating pipe network tail end medium temperature guaranteeing method, and particularly relates to the technical field of heat supply. A low-temperature steam pipe network; a hot water pipe network; the steam reheating system comprises a steam-steam heater and a steam-water heater which are arranged in parallel, and the steam-steam heater and the steam-water heater conduct heat exchange on low-temperature steam and hot water through high-temperature steam and low-temperature steam correspondingly. High-temperature steam waste heat and low-temperature steam waste heat are extracted from the tail end of a pipe network and used for heating low-temperature steam and heating hot water respectively, energy waste is avoided, the needed reheat steam flow is dynamically calculated based on the steam and water heat transfer and enthalpy value balance principle, the temperature is accurately controlled through an adjusting valve, and it is ensured that parameters of a user side reach the standard; and secondly, steam condensation water generated after heating is recycled to a hot water pipe network, circulation loss is supplemented, and water resource consumption and water production cost are reduced.

The invention relates to the technical field of cluster operation, maintenance and fault diagnosis of a solar water heating system, and discloses a cluster operation, maintenance and fault diagnosis system of a solar water heating system based on digital twinning. The operation, maintenance and diagnosis system comprises a sensing terminal, a multi-source data processing and transmission module, a cluster operation and maintenance management module, a fault diagnosis module and a fault early warning module, and the sensing terminal comprises a data acquisition module, a radar integration module, a satellite positioning module, a Lora communication module and a direct current power supply module. The multi-source data processing and transmission module comprises an edge preprocessing engine and a protocol conversion gateway; the fault early warning module comprises a background server early warning unit and a maintenance information distribution unit; the data acquisition module comprises a temperature sensor, a flow meter, a pressure sensor and an irradiance instrument; through the system, the fault identification accuracy and the fault maintenance efficiency of the solar water heater can be improved.

Systems and methods for establishing a warmed potable water flow from an aircraft potable water supply with an ambient temperature absorbs and scavenges waste heat from an air chiller condenser exhaust of an air chiller circuit at a heat exchanger to pre-warm a potable water flow delivered to an aircraft galley appliance water heater, and to increase appliance water heating efficiency and to conserve electrical power for running aircraft galley appliance water heaters.

The utility model provides an air conditioner and hot water all-in-one machine with temperature control and dehumidification functions, which comprises a compressor, an outdoor heat exchanger, a first indoor heat exchanger, a second indoor heat exchanger, a water tank and a liquid storage device, one end of the second indoor heat exchanger communicates with the exhaust end or the air suction end of the compressor, the other end of the second indoor heat exchanger communicates with the liquid storage device, and the other end of the outdoor heat exchanger, the other end of the first indoor heat exchanger or the other end of the water tank communicates with the interior of the liquid storage device. The air suction end of the compressor communicates with one end of the outdoor heat exchanger or one end of the first indoor heat exchanger or one end of the water tank. According to the utility model, the modes of refrigeration and water heating, heating and water heating and dehumidification and water heating can be realized at the same time, the system can also adapt to the refrigerant circulation amount in different modes, the problem of high power consumption is solved, the problem that the requirement of comfort cannot be met is solved, and the system runs efficiently.

The invention discloses a full-premixing combustion device and a condensation type gas water heater, and the combustion device comprises a premixing cavity which is connected with a gas valve and a fan, and in the premixing cavity, gas input by the gas valve and air input by the fan are mixed to obtain mixed gas; the ignition needle is arranged near the combustor, the ignition needle is used for igniting the mixed gas, and the combustor is used for guiding high-temperature gas flow generated by combustion to radiate to the surrounding; the detection sensor is used for detecting the combustion state of the mixed gas at the combustor; and the controller is used for adjusting the flow of the fuel gas and the air in the premixing cavity based on a detection result of the detection sensor, so that the combustion state of the mixed fuel gas meets a preset condition. According to the combustion device, the air-fuel ratio of the mixed gas can be accurately controlled according to the actual combustion requirement, and therefore the smoke exhaust heat loss is reduced. Meanwhile, the closed-loop control can inhibit the formation of a local high-temperature area, effectively reduce the NOx emission and meet the ultralow emission standard.

A water heating system includes an enclosure having a thermally-insulated top and a plurality of thermally-insulated walls, the enclosure being at least substantially open at a bottom of the enclosure and adapted for mounting above an opening in a roof of a building. The water heating system also includes a water heater mounted within an interior of the enclosure.

The invention relates to the technical field of intelligent control and predictive maintenance of heating water heaters, in particular to a wind pressure switch control system and method for a heating water heater. The method comprises the following steps of: extracting a starting pressure curve slope, a steady-state pressure fluctuation frequency spectrum entropy and a shutdown pressure decay time constant by collecting a time sequence pressure signal in a working period of a fan so as to generate a dynamic feature vector; comparing the vector with a preset reference health vector by the system, and resolving the health state confidence and the state deviation drift rate of the system in real time; when the health confidence coefficient is lower than a safety threshold value or the deviation drift rate is too high, the system executes forced safety locking; if the health degree is slightly reduced, the pre-purging time of the fan is actively prolonged as compensation; according to the method, conversion from fault response to predictive maintenance is achieved, early performance degradation symptoms such as fan abrasion and air duct dust deposition can be recognized in advance, post-maintenance is converted into beforehand intervention, and the fault rate and maintenance cost are effectively reduced.