249results about How to "Guaranteed water temperature" patented technology

The invention discloses a control method and system of a gas water heater and the gas water heater. The control method comprises the following steps that in the working process of the gas water heater, the current opening degree of a gas proportional valve of the water heater is monitored, and current practical combustion heat quantity is worked out; whether the current opening degree of the gas proportional valve and the current practical combustion heat quantity accord with a preset standard function relation is judged; when the current opening degree of the gas proportional valve and the current practical combustion heat quantity do not accord with the preset standard function relation, it is determined that gas pressure is insufficient, and a low pressure control process is executed according to the current low pressure maximum thermal load; when the current opening degree of the gas proportional valve and the current practical combustion heat quantity accord with the preset standard function relation, a normal control process is executed. By applying the method and system to the gas water heater, the problems that because the gas pressure is insufficient, flameout and fire spreading are caused and the temperature of discharged water cannot reach a set temperature can be solved.

The invention discloses a controlling method of an air-source water heater. The control of the air-source water heater is realized based on a timing water consumption mode, and a timing switch is utilized to automatically regulate the opening / stopping time of the water heater according to the outdoor environmental temperature daily range; in use, a user directly sets the time and the temperature of water consumption, and the air-source water heater selects to start the water heater for heating at the higher outdoor environmental temperature. The invention has the following advantages that: firstly, the time and the temperature of the water consumption are directly set, which is more human-friendly and is convenient for the user to operate and use; secondly, the air-source water heater selects to work at the higher outdoor environmental temperature by utilizing the outdoor environmental temperature daily range so as to improve the heating effect of the air-source water heater as large as possible and realize the energy saving operation of the air-source water heater.

The invention discloses a gas water heater comprising a gas ratio valve, a water ratio valve which adjusts the water level, a pump, a flow sensor, a temperature sensor and a controller. The pump is arranged on a water incoming pipeline of the gas water heater and is used for adjusting the flow; the flow sensor is used for detecting the incoming flow; the temperature sensor is used for detecting the discharged water temperature; the controller is used for controlling the water ratio valve, the gas ratio valve and the pump to adjust the temperature of flow of the discharged water according to the discharged water temperature and the incoming flow. The flow of the gas water heater can be adjusted, used water temperature is guaranteed, and comfort is improved. The invention further provides a control method of the gas water heater.

The invention discloses a thermal storage water heating system and a heating mode. At night, water in a thermal storage water tank is heated by a valley electricity boiler; in the day time, water in the thermal storage water tank is heated by a vacuum tube solar water heater or the waste heat of drying room exhaust gas in a fine day, and water in the thermal storage water tank is heated by the valley electricity boiler or the waste heat of drying room exhaust gas in a cloudy day. The thermal storage water heating system fully utilizes cheap energy, heats thermal storage water at different times, has high controllable performance and simple equipment, and can be independently switched to small circulation by an electric hot-water boiler to heat a heat exchanger by the boiler, thus economically and quickly heating workpieces. The thermal storage water heating system has wide use range, is suitable for large and small scale enterprises in, such as foundry industry, manufacture industry, processing industry, electrofacing industry, medicine industry, heat treatment and the like, and is also suitable for supplying heat for small and medium scale enterprises.

The invention relates to a control method of a gas water heater and the gas water heater. The gas water heater comprises a gas heating unit. The gas heating unit communicates with a water inlet pipe and a water outlet pipe. An electric heater used for conducting fast heating on inlet water is arranged on the water inlet pipe. When the thermal load of the gas heating unit reaches the maximum value and the water outlet temperature does not reach the set value, the electric heater on the water inlet pipe is started to conduct fast heating on the inlet water, the operating power of the electric heater is adjusted according to the water outlet temperature detection value, and accordingly the water outlet temperature reaches the set value. Through the arrangement and the control method, the purposes that the electric heater is controlled, and auxiliary electric heating is conducted on water flowing through the water inlet are achieved, the water inlet temperature of the gas water heater is remarkably increased, the power of the gas water heater is improved, and the application environment of the gas water heater is broadened. Meanwhile, the gas water heater is simple in structure, the control method is concise, the effect is remarkable, and the control method of the gas water heater and the gas water heater are suitable for application and popularization.

The invention aims at providing a device and a process for monitoring oceanic planktonic microorganism content in real time and early warning red tide based on total organic carbon (TOC) automatic analysis. By increasing the size of a sample injection tube and improving oxidation capacity of an oxidation reactor, the TOC including planktonic microorganism in seawater can be automatically and continuously determined on line. According to the corresponding relation of oceanic planktonic microorganism indexes (including number, chlorophyll content, biological turbidity and the like) and the TOC,the oceanic planktonic microorganism content is monitored in real time. According to the variation trend of the oceanic planktonic microorganism content, early warning of red tide disasters is provided. Compared with other analytical methods, the device and the process for monitoring the oceanic planktonic microorganism content in real time and early warning the red tide is simple, convenient andaccurate.

The invention discloses a seedling producing technique for rat-tailed algae, applying to seedling breed in-door according to sexual reproduction law, including: selecting and collecting the seed algae, stimulating and diffusing the seed algae, collecting the juvenile sporophyte, culturing and catadromousing seedlings, provided an artificial seedling producing technique for rat-tailed algae, dissolving the current shortcoming problem of the rat-tailed algae seedlings.

A hot water supply system comprises a hot water source which can continuously output the heated water flow; a water return pipeline, of which the front end communicates with a water outlet of the hot water source, the tail end communicates with a water inlet of the hot water source, and a group or more groups of water outlet valves are arranged thereon; a main control unit, which is provided with a temperature control part to monitor the temperature of the water flow in the water return pipeline and maintain the temperature at the state that is in line with the set water temperature by a user and a preset timing part; a pump which is arranged in the water return pipeline and is manipulated by the temperature control part of the main control unit to operate; a first temperature detector which can detect the temperature of the water flow at the tail end part of the water return pipeline; a second temperature detector which can detect the temperature of the hot water at the water outlet of the hot water source; and a plurality of groups of control units of using terminals which are provided with a control panel and a water temperature display device.

The invention discloses a combined heat supply device using a heat storage electric boiler and an air source heat pump and a heat supply method thereof. The combined heat supply device comprises the air source heat pump, the heat storage electric boiler, a water tank and a central control unit. The water tank communicates with the heat storage electric boiler and the air source heat pump. The heat storage electric boiler and the air source heat pump are further electrically connected with the central control unit. According to the combined heat supply device using the heat storage electric boiler and the air source heat pump and the heat supply method thereof, the central control unit is used for detecting the outdoor temperature of the air source heat pump and further judging and controlling whether the air source heat pump supplies heat to the water tank or the electric boiler supplies heat to the water tank, the air source heat pump is adopted when the outdoor temperature is high, and the heat storage electric boiler is adopted when the temperature is low; and the central control unit is provided with an environment and indoor temperature measuring device, the temperature of the water tank can be monitored to be used as judgment data, the defects are overcome by means of system combination, and therefore the overall heat supply is made more economical and reasonable, and the water outlet temperature can be guaranteed.

The invention relates to a wide-width, high-strength, high-toughness and thick-wall X80M pipeline steel plate and a manufacturing method thereof. The steel plate is prepared from the chemical components including, by weight, 0.045%-0.08% of C, 0.20%-0.38% of Si, 1.55%-1.85% of Mn, 0.15%-0.35% of Cu, less than or equal to 0.010% of P, less than or equal to 0.015% of S, 0.04%-0.08% of Nb, 0.015%-0.028% of Ti, 0.015%-0.045% of Al, 0.25%-0.5% of Cr, 0.004%-0.006% of N, 0.032%-0.06% of V, 0.03%-0.05% of Zr, less than or equal to 0.15% of Ni, less than or equal to 0.12% of Mo, 0.0012%-0.0035% of Ca and the balance Fe and inevitable impurities. The produced steel plate has the comprehensive performance of high strength and good low-temperature toughness, and can ensure the safety of oil and gas transmission pipelines.

The invention discloses a circulating cooling method, especially relates to a circulating cooling method and an apparatus used for roasting aluminum oxide, and belongs to the field of aluminum oxide technology. The circulating cooling method used for roasting aluminum oxide is characterized in following steps: qualified condensate water obtained via mother liquor evaporation or pressure cooking dissolving is delivered into a soft water tank nearby; soft water in the soft water tank is delivered into a plate heat exchanger using a soft water pump, so as to realized heat exchange with low-temperature backwater delivered from a red mud storage yard; after heat exchange, the heated backwater is used as red mud washing water in a red mud separating and washing process, and the cooled soft water is taken as cooling water, and is delivered into a fluidizing cooler so as to realize indirect heat exchange with high-temperature discharged aluminum oxide; and after indirect heat exchange, the soft water is delivered back into the soft water tank, and is recycled and cooled. Advantages and effects of the circulating cooling method and the apparatus are that: the apparatus is simple in structure, land occupation area is small, operation and management are convenient, construction investment of circulating water stations can be saved, heat energy can be recycled, and energy consumption can be reduced.

The invention discloses an eel breeding method. The eel breeding method comprises the following steps of (1) selecting a pond, (2) pre-handling the pond, (3) establishing the ecology of the pond, (4) selecting eel fry, (5) placing the eel fry in the pond, (6) preparing feed, (7) throwing feed into the pond, (8) monitoring the enology and (9) catching eels. By the adoption of the eel breeding method, the eel survival rate is increased, the eel growth period is shortened, and it is guaranteed that the eels are delicious.

The invention relates to an air source heat pump water heating device regional staged heat preserving integrated machine. The machine comprises an evaporator, a compressor, a condenser / heat storage integrated device which has two kinds of effects of a condensing refrigerating agent and heating temperature-increasing water heating and a throttle device. A regional staged heat preserving technologyis adopted to meet water using demands of winter and summer; compared with a traditional heat preserving water tank, the installing space and production cost of a heat preserving device can be effectively reduced because phase change heat preserving has higher energy storage density; compared with a single heat preserving device, the adopted regional staged heat preserving technology can ensure that an air source heat pump still has higher performance parameters when external temperature is extremely low in winter, heat using demands of an external user is ensured through phase-change heat storage material pre-heating and electric heating before heat temperature increasing, the machine has the advantages of being efficient, energy saving, compact in structure, more practical and the like,and the machine can be extensively applied to the fields of life water heating and building heat generating.

The invention discloses a full-automatic larva incubating device and method suitable for benthoic squid, and belongs to the technical field of aquaculture; and the full-automatic larva incubating device comprises an incubation tank, a fertilized egg incubator, a spiral air inlet pipe, a temperature sensor and a water purification device. The incubation tank is used for placing the fertilized egg incubator and assisting squid incubation; the fertilized egg incubator is used for incubating squid fertilized eggs and separating egg skins and other sundries after incubating; the spiral air inlet pipe is used for air introduction to promote the incubating of the squid fertilized eggs; the temperature sensor is used for detecting the temperature of breeding water in real time and ensuring the incubating rate of the squid fertilized eggs; and the water purification device is used for purifying the water in the incubation tank and ensuring the cleanliness of the water body. According to the device, water purification can be carried out during the culture, the larva incubation of the benthoic squid is simplified and promoted, the sundries such as the egg skins can be automatically separatedand discharged, and the follow-up cultivation survival rate of the benthoic squid is improved.

The invention discloses a method for automatically heating a pop-top can. A heating can with a turnup is arranged from the bottom of an outer can; three combined granules A, B and C are filled in the upper part in the heating can; a water cup is arranged at the bottom of the heating can; a sealed thin-film layer seal is formed on the top of the water cup; the water cup is filled with mixed liquor; a piston guide pipe is arranged in the water cup; a piston is arranged in the piston guide pipe; the head of the piston is provided with a tip; the tip is contacted with the sealed thin-film layer; a groove is formed in the piston; a sealing ring is arranged in the groove; the sealing ring is in sealing fit with the inner wall of the piston guide pipe; a bottom cover is arranged below the turnup of the heating can; a button is arranged in the middle of the bottom cover and is contacted with the bottom of the piston; the inner turnup of the bottom cover, the heating can and the outer turnup of the outer can are rolled and sealed; the drink is filled from an upper port of the outer can; and a can cover is sealed.

The invention discloses a circularly-heating electric water heater with a thermal compensation function. The circularly-heating electric water heater comprises a water tank, an outer circulation heating assembly and a three-way valve. The water tank is provided with a cold water inlet, an outer circulation water outlet and an outer circulation water inlet. The outer circulation water outlet, the outer circulation heating assembly, the three-way valve and the outer circulation water inlet are sequentially connected to form an outer circulation heating loop. The water inlet end of the three-way valve and the first water outlet end are connected between the outer circulation heating assembly and the outer circulation water inlet, and the second water outlet end of the three-way valve is a hot water outlet. According to the circularly-heating electric water heater, the outer circulation heating assembly is arranged outside the water tank, an outer circulation heating form is adopted, true water and electricity separation is achieved, the circularly-heating electric water heater is safer and more reliable, and maintaining of the outer circulation heating assembly is facilitated; and the outer circulation heating assembly directly drains hot water through the three-way valve, the outer circulation heating assembly can also heat water in the water tank for the second time when water is output, thermal compensation is achieved, and it is guaranteed that the temperature of outlet water meets the set requirements.

Disclosed is an ecological system for culturing fishes and growing flowers. The ecological system comprises a fish tank. A flower-growing container is arranged at the upper portion of the fish tank. A base plate of the flower-growing container is a hole-penetrating plate. The flower-growing container is arranged on the hole-penetrating plate. An ecological soil layer is arranged inside the flower-growing container. Water distribution pipes with holes are arranged on the surface layer of the porous ecological soil layer. The water distribution pipes with the holes are communicated with a water pump installed inside the fish tank. A filtering layer is further arranged below the hole-penetrating plate. According to the ecological system for culturing fishes and growing flowers, recycling of waste water drained by fish culturing can be achieved, a large number of nitrogenous nutrition substances in the waste water drained by the fish culturing can be absorbed by the flowers which like darkness and humidity in flowerpots and special soil matrixes, meanwhile, flower root systems, aerobic, anaerobic and facultative microfloras in the soil matrixes can also adsorb and assimilate a large number of nitrogenous substances, and therefore the waste water is purified. Due to the fact that the fish tank and the flowerpots are all in the opened type, certain moisture can be supplemented to indoor air through surface evaporation of the water body, transpiration of leaves of the flowers and the like, the humidity of the indoor air is improved, and the indoor environment is improved.

The invention discloses a heating heat-insulating bathtub which comprises a bathtub body. One end of the bathtub body is provided with a containing chamber along the width direction of the bathtub body, a rotating shaft is arranged in the containing chamber, one end of the containing chamber penetrates the side wall of the containing chamber to extend to the outside and is connected with a rotating shaft, a sealing curtain is wound on the rotating shaft, one side, close to the bathtub body, of the containing chamber is provided with a notch, one end of the sealing curtain extends to the outside of the containing chamber through the notch, and the inner walls above two sides of the bathtub body are provided with sliding grooves along the length direction of the bathtub body. The sealing curtain is drawn to the other end from the containing chamber by pulling a supporting rod, so that a bathtub is enabled to form a sealed space, heat loss is slowed down, and water temperature is maintained; when the water temperature is too low, water in the bathtub can be heated by heating a metal pipe, so that using experience of a user is improved, and water resource waste is avoided.

The invention discloses a temperature-constant gas water heater which comprises a circulation heating system, wherein the circulation heating system comprises a circulation loop and a water outlet pipeline, wherein one end of the water outlet pipeline is connected with a water supply while the other end is connected with a water using point; a main heat exchanger used for heating circulating water in the circulation loop is arranged on the circulation loop; a secondary heat exchanger used for heating cold water in the water outlet pipeline is arranged between the circulation loop and the water outlet pipeline; a three-way valve is arranged on the circulation loop; a water inlet of the three-way valve is communicated with a water outlet of the main heat exchanger; one water outlet of the three-way valve is communicated with a heat medium inlet of the secondary heat exchanger while the other water outlet is communicated with the water using point. The temperature-constant gas water heater provided by the invention realizes the secondary heat exchange for the cold water in the water outlet pipeline through the main heat exchanger and the secondary heat exchanger, so that the problem of high-temperature scalding caused by excessive heating of the cold water is solved.

The invention discloses an ultra-high temperature cascade water source heat pump system. The ultra-high temperature cascade water source heat pump system comprises an intermediate heat exchanger, a low temperature stage unit and a high temperature stage unit, wherein the low temperature stage unit comprises a first-stage compressor, a first-stage electronic expansion valve and an evaporator; the high temperature stage unit comprises a second-stage compressor, a condenser and a second-stage electronic expansion valve; the intermediate heat exchanger serves as a first-stage condenser in a low temperature side refrigerating circuit and also serves as a second-stage evaporator in a high temperature side heating circuit. In the ultra-high temperature cascade water source heat pump system, the heat transfer enhancement effect in the tube of a refrigerating fluid is good, the heat transfer temperature difference of the intermediate heat exchanger is stable, the system energy efficiency is improved, high temperature hot water and cold water are produced at the same time, and the water temperature and quantity of heat can also be guaranteed.

The invention provides a casting method for a turbine shell. The turbine shell is internally provided with a partition plate. The casting process comprises the following steps that S1, a riser (6) is placed at the edge of a mold core of the turbine shell, and the riser (6) is made to be connected with the mold core of the turbine shell; S2, a transverse pouring gate and a flow resistant channel (4) are arranged in a mold, the transverse pouring gate is provided with a plurality of water inlets (7) which are connected to the periphery of the mold core of the turbine shell at intervals, one end of the flow resistant channel (4) is connected with the transverse pouring gate, and the other end of the flow resistant channel (4) is connected with the riser (6); S3, pouring liquid is injected into the sand mold and is filtered; and S4, the filtered pouring liquid enters a cavity of the turbine shell through the multiple water inlets (7) and the flow resistant channel (4), pouring is completed, and the turbine shell is obtained. According to the casting method for the turbine shell, cold shut of the partition plate of the turbine shell and the casting surface slag hole defect can be eliminated, and the internal quality and the yield of the turbine shell are improved.

The invention discloses an operation control method of a cold water unit or a heat pump unit, the units comprises a plurality of unit plants which are connected in parallel and contain two to four compressors. The operation control method comprises the following steps of acquiring the total load values of the unit plants, the load values of each compressor and the operation load values of the unitplants, preset sorting the sequence of the unit plants, and load or load-reducing conditions are preset. During operation, the unit plants operation load values are re-sequenced according to preset sorting, then selecting unit plants which are equal to the operation load values of the sequencing the first unit plant, re-sequencing is carried out according to the load values of each compressor, aunit which is equal to the load of the first each compressor at the moment is selected, then sorting is carried out according to the running time, at the moment, the first unit plant is ordered to beloaded or unloaded targets under the corresponding sequencing. According to the operation control method, the compressors of the unit plants can be alternatively loaded or unloaded one by one so as toachieve balanced dispersion operation, so that the water outlet temperature is prevented from being too low, and the requirements of customers are met.

The invention discloses a washing apparatus for fishes with mucus on surface. The washing apparatus for the fishes with the mucus on the surface comprises a washing tank and a temperature control device; the temperature control device is located on an inner surface of the washing tank; a water inlet and a water outlet are arranged at an upper part of the washing tank; the temperature control device comprises a display, a regulate button, a control circuit board and a heating plate; the heating plate, the display and the regulate button are located on an outer wall of the washing tank; the display is connected with the regulate button; the regulate button is connected with a power supply via a switch; the display is connected with the control circuit board; and the control circuit board is connected with the heating plate. According to the washing device, heating temperature of the heating plate can be freely adjusted according to demands of consumers so as to ensure water temperature of the washing tank, and thus, the fishes with the mucus on the surface can be appropriately washed. The water inlet and the water outlet are arranged on the washing tank so as to facilitate water change in the tank by the user at any time, and thus, survival rate is ensured; moreover, flexible plastic woven filter nets are arranged on the water inlet and the water outlet so as to prevent escape of the fishes with the mucus on the surface, as well as avoid unnecessary harm.

The invention discloses a flow dividing plate and a cold tank for a water dispenser and the water dispenser. The flow dividing plate for the water dispenser comprises a transverse clapboard, a longitudinal clapboard and a hot tank water inlet pipe, and the lower space of the transverse clapboard forms a cold water region; the longitudinal clapboard is arranged on the upper surface of the transverse clapboard and divides the upper space of the transverse clapboard into a warm water region and a mixed water region communicated with the cold water region, and the longitudinal clapboard is provided with a water hole communicated with the mixed water region and the warm water region and a warm water discharge passage for communicating the warm water region with the outside; the hot tank water inlet pipe runs through the transverse clapboard and is communicated with the warm water region. The flow dividing plate for the water dispenser is capable of reducing the cold water and warm water mixing degree so as to guarantee the warm water discharge temperature.

The invention relates to a coffee machine which comprises a coffee machine body (10) used for producing hot water or hot steam for brewing coffee. A water tank (20) and a heating device (30) are arranged in the coffee machine body (10). The water tank (20) is connected with the heating device (30) through a cold water pipe (40). Hot water or hot steam heated by the heating device (30) flows out through a hot water pipe (50) which is arranged by being separated from the water tank (20). By means of the separated design of the hot water pipe and the water tank, the water temperature is prevented from being lowered as heat of the hot water in the hot water pipe is prevented from being absorbed by cold water in the water tank and the water temperature in brewing the coffee is endured. A water outlet of the water tank is designed to be concaved to prevent water from remaining in the bottom of the water tank and prevent the water tank from being polluted; a fixed flange is arranged on the water tank to enable the water tank to be installed and detached conveniently.

The invention relates to a method for circularly reutilizing flashing secondary steam of an acid bath system. The method comprises the following steps: (1) respectively introducing secondary steam ofa flashing evaporation chamber V11 of the acid bath system in a viscose production system into a first-stage heat exchanger, secondary steam of an evaporation chamber V10 into a second-stage heat exchanger and secondary steam of an evaporation chamber V9 into a third-stage heat exchanger, so as to respectively generate heat exchange with circulating water in each heat exchanger; and (2) condensingthe secondary steam through heat exchangers, collecting condensed water for reuse, vacuumizing non-condensable gas in the secondary steam for reuse, introducing heater circulating water in the heat exchangers into a closed cooling tower, and cooling for reuse. According to the method, the volatilization of the peculiar smell of an acid bath evaporation system in the viscose industry is fundamentally solved, and meanwhile, the closed cooling tower adopting a special structure and technical principle can meet the requirement on the temperature of cooling water in a workshop and can stable workfor a long time, so that the water and the energy can be saved, the emission can be reduced, and the service life of process device is prolonged.

The invention discloses an energy-saving electromagnetic water dispenser. The energy-saving electromagnetic water dispenser comprises a water storage chamber; two paths of water outlets are formed on the water storage chamber; one path of the water outlets is connected with the water inlet end of a heating instrument; the water outlet of the heating instrument is connected with a hot water outlet electromagnetic valve; the heating instrument is arranged on a heating coil disc of a high-frequency electromagnetic circuit; the heating section of the heating coil disc is controlled by the intensity of a magnetic field generated in the high-frequency electromagnetic circuit; the high-frequency electromagnetic circuit is controlled by a control circuit which is connected with a time delay circuit; the hot water outlet electromagnetic valve is connected with the time delay circuit; the control circuit is connected with a timing circuit which is connected with a button on an external panel; when receiving a corresponding button press-down signal, the timing circuit feeds back a corresponding heating time signal to the control circuit; the control circuit sends a starting signal and the heating time signal to the high-frequency electromagnetic circuit, and sends the starting signal to the time delay circuit at the same time; and the time delay circuit feeds back a time delay starting and stopping signal to the hot water outlet electromagnetic valve.

The invention discloses a constant temperature water tank for a calorimeter calibrating device. The constant temperature water tank for the calorimeter calibrating device comprises a tank body and further comprises a first water blocking partition plate and a second water blocking partition plate, wherein a plurality of flushing openings are formed in the first water blocking partition plate and the second water blocking partition plate respectively in a dense distribution mode, the first water blocking partition plate is erected on the left side of a hollow chamber of the tank body, the second water blocking partition plate is erected on an electric heating element, the first water blocking partition plate and the second water blocking partition plate are oppositely arranged and mutually staggered, and a winding liquid advancing route is formed by the first water blocking partition plate and the second water blocking partition plate in the tank body. The constant temperature water tank for the calorimeter calibrating device has the advantages that the first water blocking partition plate and the second water blocking partition plate are used for blocking backwater which flows into the tank body so that the backwater can flow to a hot water outlet along the winding liquid advancing route instead of directly flowing to the hot water outlet, as a result, the situation that the backwater directly flows to the hot water outlet without being heated by the electric heating element after a calorimeter is calibrated is effectively prevented, the outlet water temperature at the hot water outlet is ensured, and the detection of the calorimeter can be accurate.

The invention discloses an efficient water-saving shower device. The efficient water-saving shower device comprises a shell, a hot water pipe, a cold water pipe and a water outlet pipe, wherein the shell is of a square structure; a square cavity is formed in the interior of the shell; the hot water pipe, the cold water pipe and the water outlet pipe communicate with the cavity respectively; the hot water pipe and the cold water pipe are positioned on one side of the shell; the water outlet pipe is positioned on the other side of the shell; a thermoelectric power generation piece is arranged onthe outer wall of the hot water pipe and the outer wall of the cold water pipe together; and two electrodes of the thermoelectric power generation piece are connected with electromagnets through wires. When the temperature of water flowing from the hot water pipe is relatively low, two baffle plates abut against pipe openings of the water outlet pipe and the cold water pipe simultaneously, so that water inside the shell cannot flow out, water flowing from the hot water pipe can flow into an elastic water bag for storage, cold water flowing at the beginning of shower is avoided from flowing out directly to cause waste, and when the temperature of water inside the hot water pipe is increased, hot water inside the hot water pipe and cold water inside the cold water pipe are mixed inside theshell and flow out from the water outlet pipe for being used in a shower.

Provided is a water heater protecting device with a wireless induction power interruption function. The water heater protecting device is composed of a receiving part and a transmitting part. The water heater protecting device is characterized in that the transmitting part is installed on a connecting pipe, the connecting pipe is connected to a water inlet pipe or water outlet pipe of a water heater in series, and the receiving part is installed on a wall to be connected with the mains supply or is directly plugged into an original socket through a led-out plug. When a water tap is turned on, water flows out of the water heater, the transmitting part converts a water flow signal into a wireless signal and transmits the wireless signal to the receiving part, and the receiving part disconnects the water heater from the mains supply after receiving the signal of the transmitting part, so that the life safety of a user is effectively guaranteed.