CN215372920U - Running water multimode constant temperature water heater - Google Patents

Abstract

The utility model belongs to the field of water heaters, and particularly relates to a running water multimode constant-temperature water heater. The water heater comprises a shell, an inner container, a water flow sensing unit, a jet device, a main heating unit, a one-way valve and a temperature regulating valve, wherein the jet device comprises a water inlet end, a water outlet end and a suction end, the suction end of the jet device is communicated with the inner container, and the water inlet end or the water outlet end of the jet device is communicated with the main heating unit. The water heater also comprises a second scheme, and the water heater also comprises a shell, an inner container, a water flow induction unit, a pump, a one-way valve, a three-way device and a main heating unit, wherein the inner container is of an open structure, the suction end of the pump is communicated with the bottom of the inner container, the one-way valve is arranged on a water inlet or outlet channel of the pump, the installation direction of the one-way valve does not allow tap water to flow into the inner container, the water outlet end of the pump is communicated with one interface of the three-way valve, and the three-way valve is communicated with the main heating unit.

Description

Running water multimode constant temperature water heater

Technical Field

The utility model belongs to the field of water heaters, and particularly relates to a running water multi-mode constant-temperature electric water heater.

Background

The existing electric water heater has a plurality of problems, such as a series of problems of large volume, high energy consumption, slow heating, scale formation, water pollution, inner container corrosion, need of replacing the magnesium rod regularly and cleaning the scale, and the like of the common electric water storage type; the instant electric water heater has the defects of high power and small water quantity in winter, so that the instant electric water heater can only be used as supplement of an electric water storage mode all the time; the water heater is a high-power small-volume water storage type water heater, called as a quick-heating water heater in the industry, and the purpose of the water heater is to combine the advantages of an electric water storage type water heater and an instant heating type water heater, but practice proves that the water heater has the biggest problem that hot water is not enough, scaling influence is more serious, and if the inner container is further enlarged, the appearance and the heating speed of the water heater are almost different from those of the water storage type water heater, so that the significance is lost; an instant heating module is further integrated in the instant water heater, the instant heating module is called as dual-mode instant heating in the industry, the dual mode is a water storage and heating mode, 25 liters of water can be satisfied by most users, but the problem is serious, the cost is high, the structure is complex, the failure rate is high, and the influence of scale formation in the small-volume liner is serious. The problem that incrustation scales influence water quality is solved, a water heater adopting a heat exchange mode is adopted in the industry, the water temperature of hot water is not constant after the hot water is shut down due to the heat exchange temperature difference, incrustation scales can be formed in the heat exchange pipe in an area with poor water quality, the heat exchange efficiency is influenced by the incrustation scales, and the incrustation scales cannot be used after being blocked.

In order to solve the industrial problems, the utility model provides a new technical scheme which comprises a series of specific embodiments. The main solution is to make a fluidic device by using the venturi effect, and it is known from bernoulli's law that a low pressure is generated near a high-speed flowing fluid (the essence of which is that molecules of the high-speed fluid are carried away from other fluid molecules at the periphery by impact or electromagnetic force). With the jet device, hot water in the water heater liner can be output according to a certain proportion of cold water flow without pressure, so that the liner can be made into an open structure by adopting high polymer materials, and the problems of corrosion of the liner of the traditional water heater and periodic replacement of a magnesium rod are solved. The bottom of the liner is made into an inclination, the suction end of the jet device is positioned at the bottommost part of the inclination, and the water flow sprayed out from the water inlet spray pipe of the liner can wash the bottom of the liner, so that scale cannot be accumulated in the liner, and scale is separated out from the water every time and is sucked away, thereby keeping cleanness and sanitation. The hot water can be sucked from the bottom, and the hot water is also sucked from the bottom by matching the open type inner container with the electromagnetic valve, when a user uses hot water, the electromagnetic valve is closed, cold water is not added into the inner container, and only when the user does not use hot water, the electromagnetic valve fills water into the inner container according to an instruction, so that when the user uses hot water, the hot water in the inner container is not cooled by the cold water, the hot water output rate is 100%, and the temperature is extremely constant. The hot water sucked out of the inner container is mixed with the cold water and then flows through the heater to be heated (or the cold water is heated firstly and then is mixed with the hot water in the inner container, and the heater outputs proper power according to the set water outlet temperature, so that the water outlet achieves the constant temperature effect. Of course, the above effects are achieved, a jet device is not required to be used, and other technical solutions are provided in the patent. The water heater can also be directly used as an instant water heater, and when the water heater is used as the instant water heater, air can be mixed into water to generate the effect similar to ultrasonic cleaning, so that water and electricity are saved. For specific technical details, reference is made to the embodiments of the description.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior water heater technology, the utility model provides a new technical scheme.

The object of the utility model is solved by the following technical solutions:

a running water multimode constant temperature water heater comprises a shell, an inner container, a water flow induction unit, a jet device and a main heating unit, wherein the jet device comprises a water inlet end, a water outlet end and a suction end, the suction end of the jet device is communicated with the inner container, and the water inlet end or the water outlet end of the jet device is communicated with the main heating unit.

Optionally, the water heater further comprises a one-way valve, the one-way valve is communicated with the suction end of the jet device, and the installation direction of the one-way valve does not allow tap water to flow into the inner container through the suction end of the jet device.

Optionally, the inner container is open, a pore channel is formed in the inner container and communicated with the atmosphere, and the water supply mechanism is connected between the water channel and the inner container in series and controls water inlet of the inner container.

Furthermore, the device also comprises a temperature adjusting valve which is arranged on a water flow channel at the suction end of the jet device.

Optionally, the heating device further comprises a second heater, and the second heater is assembled in the inner container.

Furthermore, the main heating unit comprises two water flow channels which are isolated from each other and a water pump, wherein one of the water flow channels of the water pump and the main heating unit and the inner container are connected together to form a heating circulation channel.

Optionally, the main heating unit is assembled at the bottom of the inner container, the main heating unit includes two water flow channels isolated from each other, and the main heating unit performs thermal circulation with the inner container through a thermal expansion element or a pump or an electric control mechanism.

Furthermore, the bottom of the inner container is inclined, the suction end of the jet device is connected with the lowest position of the bottom of the inner container, the jet device further comprises a jet pipe assembly, the jet pipe assembly is provided with a nozzle, and the structure of the nozzle enables the bottom of the inner container to be flushed when the water heater adds water into the inner container.

Optionally, the water tank further comprises a pressure reducing valve, and the pressure reducing valve is installed at the water inlet end of the inner container.

The utility model provides a running water multimode constant temperature water heater, includes shell, inner bag, rivers induction element, still includes water pump, check valve, tee bend device, main unit that generates heat, the inner bag is for opening the structure, the suction end intercommunication inner bag bottom of water pump, the check valve is installed on the water intake or the exhalant canal of pump, and its installation direction does not allow the running water to flow into in the inner bag, the play water end intercommunication of water pump tee bend one of them interface, the tee bend communicates with main unit that generates heat.

Advantageous effects

The running water multimode constant temperature water heater developed by the utility model has great advantages in cost, structural reliability, performance, sanitation, energy conservation and convenience, and has great popularization significance.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings

FIG. 1 is a schematic view of a first embodiment

FIG. 2 is a cross-sectional view of a fluidic device

FIG. 3 is a schematic view of the first embodiment

FIG. 4 is a schematic view of the first embodiment

FIG. 5 is a schematic view of the first embodiment

FIG. 6 is a schematic view of a second embodiment

FIG. 7 is a schematic view of a third embodiment

FIG. 8 is a schematic view of a fourth embodiment

FIG. 9 is a schematic view of a fifth embodiment

FIG. 10 is a schematic view of a sixth embodiment

In the figure:

1. the water heater comprises a shell 2, an inner container 3, a jet device 3a, a water inlet end 3b, a water outlet end 3c, a suction end 4, a heater 5, a heat exchanger 6, a heater shell 7, a water pump 8, an electromagnetic valve 9, a one-way valve 10, a temperature regulating valve 11, a water flow induction unit 12, a water inlet joint 13 of the water heater, a water outlet joint 14 of the water heater, a spray pipe assembly 15, an exhaust pipe 16, a main heating unit 17, an auxiliary heating unit 18, a water temperature bag assembly 19, a pressure reducing valve 20, a shutoff valve 21, a tee joint 22, a floating ball valve seat 23, a floating ball 24, an exhaust port

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The utility model is further illustrated by the following figures and examples.

Example one

Fig. 1 to 5 are schematic structural views of a water heater according to a first embodiment of the present invention, and the key features of this embodiment are: the open-type inner container absorbs hot water by utilizing negative pressure generated by tap water flowing through the jet device, and hot water is discharged from the bottom of the inner container.

Firstly, a tap water flow path is introduced, and as shown in fig. 1, tap water flows in from a water inlet joint 12 of a water heater and is divided into two paths: one path of the water enters the spray pipe assembly 14 after passing through the electromagnetic valve 8 and then is injected into the liner 2 from the spray pipe assembly 14; the other path passes through the water flow induction unit 11, then flows into the heat exchanger 5 to the jet device 3, and then flows out through the water outlet joint 13 of the hot water device. Secondly introduce inner bag heating circulation route, when the water in the inner bag 2 needs to be heated, water pump 7 starts, and the water in the inner bag is inhaled from the water sucking mouth of water pump, and the heater shell 6 that gets into main heating unit behind the water pump is heated in flowing through, and the delivery port of rethread heater shell 6 flows into inner bag 2, so continuously carries out heating circulation, and water in the inner bag reaches preset temperature. When a user opens the water using terminal to use hot water, tap water flows in from the water inlet connector 12 of the water heater and flows through the water flow sensing unit 11, the water flow sensing unit sends a signal to the central processing unit, and the heater 4 works; the electromagnetic valve 8 is always in a closed state when the water flow sensing unit senses water flow, and water is not filled into the inner container 2; then the tap water flows through the heat exchanger 5 to be heated and then flows through the jet device 3, the pressure of the water flow is converted into the flow velocity when the water flow passes through the pores at the water inlet end of the jet device, the high-speed jet generates vacuum at the suction end, the atmospheric pressure leads the water pressure in the inner container 2 to enter the suction end of the jet device, and the two water flows are mixed and then flow out from the water outlet joint 13 of the water heater; and a temperature sensor (not shown in the figure because the temperature sensor belongs to the known technology) is also arranged on the mixed water flow channel, and according to the temperature value, the silicon controlled rectifier keeps the actual outlet water temperature at the set temperature by adjusting the power of the heater 4, so that the constant temperature effect is achieved.

Detailed description of the fluidic device and the thermostatic scheme: in order to reduce the volume of the water heater and increase the hot water output of the water heater, the heater must be in the maximum power state when hot water is used, so the ratio of the driving water flow (cold water) of the jet device to the sucked water flow is preferably kept between 2:1 or 3:1 (although the value of the number cannot limit the protection range of the patent), which is determined according to the power of the water heater and the water quantity in actual use, such as the inner container is heated to 80 in winter, the water inlet temperature is 5 ℃, if the ratio of the cold water to the hot water is 2:1, the mixed water temperature is 30 ℃, such as the power of the water heater is 5.5KW, the water outlet quantity is 5 liters, and the water outlet temperature is 45.4 ℃ when the heater is operated at full power to just reach the bathing temperature. When the water volume of the user is small or the power of the water heater is large, the ratio of the cold water to the hot water can be a little larger. The ratio of cold water to hot water of the fluidic device is determined by the structural design of the fluidic device and the resistance of each pipeline, the change of the pressure of tap water only reduces the total water flow, the ratio of cold water to hot water of the fluidic device hardly changes, so that once the water heater is installed, the ratio of cold water to hot water is fixed (manual control is possible), the ratio can be controlled only by adjusting the size of the section of the suction end through the temperature adjusting valve 10, and the ratio is basically fixed after the water heater is manually adjusted. In order to make the temperature adjustment of a user more intuitive and friendly, the display interface of the water heater can be added with power display or ratio display of the maximum power, for example, 1 represents the full power, 0.9 represents only 90% of the maximum power, or the power is indicated in a mode like the electric quantity of a mobile phone; the power does not need to be displayed, when the water heater is not in an instant heating mode (the instant heating mode is used when the temperature of inlet water is high, the inner container does not need to be heated, even water does not need to be added when the inner container is emptied), when the power deviates from the full power and is larger than a certain limit when hot water is used, the water heater can give an alarm, and a user is prompted to adjust the temperature regulating valve to enable the water heater to be in the optimal state. (indicating that the water heater does not operate fully in the non-instantaneous mode because too much hot water is mixed, which affects the hot water output quantity of the water heater, for example, a 25L inner container, if the ratio of cold water to hot water is 2:1, the hot water in the inner container is pumped out, and then 75 liters of water is mixed out, if the ratio of cold water to hot water is 1:1, only 50 liters of water can be mixed out.) the water heater intelligently sets the heating temperature of the inner container according to the water inlet temperature, so that the weighted average of the cold water temperature and the hot water temperature is in a constant value in each season, and the main heating unit controls the power of the main heating unit to keep the water outlet temperature constant due to the fact that the mixed water temperature has temperature change of several degrees due to various reasons. Compared with a traditional thermostatic valve with a mechanical structure of a water storage type water heater, the thermostatic scheme has much higher reliability and is a more reliable thermostatic solution. For the sake of intelligence, the thermostatic valve 10 can be electrically operated, and because the pipeline where the valve is located has no pressure and the valve hardly needs much motion, the reliability of the thermostatic valve is much higher than that of the traditional thermostatic valve.

Referring to the scheme of fresh running water, as shown in fig. 1, the bottom of the inner container 2 is made into an inclined plane, the water suction port of the jet device is positioned at the lowest point of the inner container, and the structure and the installation position of the spray head on the spray pipe assembly 14 enable the water flow sprayed out of the spray head to flush the bottom of the inner container. When the water heater is used for heating water, the water heater can completely empty the water in the liner after a long time, when the liner is filled with water again, the water flow sprayed by the spray pipe assembly directly washes the liner, silt and scale are washed to the lowest point (namely the water absorption position of the jet device), and trace impurities are sucked and discharged when the liner is used for the next time, and the process is repeated in this way, which is equivalent to that the liner is frequently cleaned. Meanwhile, because the hot water in the inner container is emptied regularly even every day, the water is equivalent to running water used every time, and microorganisms in the water are not overproof because the fresh water, the boiled water and the scale are always mixed with the old water in the traditional water storage type, and people know that a barrel of water smells after being stored for a long time. This patent has solved the sanitary problem of water storage formula water heater.

Referring to the heat generating unit, as shown in fig. 1, the main heat generating unit is composed of a heater 4, a heat exchanger 5, and a heater case 6. The heater shell is arranged below the inner container and communicated with the inner container, so that the inner container 2 can be filled with water when filled with water, the water is also used as a heat exchange medium for transferring heat to the heat exchanger 5, and when the water in the inner container is emptied, the water in the heater shell is full. If the inner container is not added with water in the instant heating mode, a water level sensing device can be arranged on the heater shell for preventing the water in the heater shell from continuously evaporating and leading to dry burning, when the water in the heater shell is lower than the safe water level, the electromagnetic valve 8 is opened to add a little water into the inner container for supplementing the water level, of course, if the double heat exchange tube cast aluminum heater is adopted, the problems do not exist (the suction end of the water pump and the water outlet end of the inner container connected with the heater shell cannot be in the same plane for ensuring the water is fully filled, a certain fall is needed, otherwise, the water pump is covered by the water at the same time for trapping air), when the water is not stored in the inner container, the water pump 7 does not work, the heater 4 heats the water passing through the heater shell as a heat conducting medium, and heats the water flowing through the heat exchanger 5; when the water stored in the inner container needs to be heated, the water pump 7 works, and the water in the heater shell and the inner container is continuously heated circularly under the driving of the water pump. The main heater can be in other forms, and the same effect can be achieved as long as two independent heating water channels are provided, for example, an aluminum casting heater is wound with two heat exchange tubes outside the heater, the two heat exchange tubes and the heater are cast into an aluminum ingot, aluminum serves as a heat conducting medium, and if the cost is not counted, copper casting is better in heat conductivity; the method can also be an electromagnetic heating technology, for example, two groups of metal pipelines are placed in a high-frequency alternating magnetic field, and high-frequency alternating current is generated by cutting magnetic induction lines to realize self-heating, and the same effect is also realized; or just like the structure shown in the figure of this patent, the heater 4 is replaced by an electromagnetic coil and is arranged outside the heater shell 6, and the heat exchanger 5 can generate heat in a high-frequency magnetic field, so that the heat exchanger 5 has two purposes, namely not only the heat exchanger, but also the heater; or two groups of crisp heaters, one group of the two groups of crisp heaters is only responsible for heating running water and the other group of crisp heaters is responsible for heating the inner container; meanwhile, the form of the heater is not limited to that shown in the drawings, and may be various forms such as a thick film heater, a carbon film heater, an electromagnetic heater, a ceramic heater, and the like, which are within the protection scope of the present patent.

Referring to the fluidic device, as shown in fig. 2, the fluidic device is constructed like a tee, except that the water inlet end allows water to flow through a small hole, which causes the device to generate negative pressure at the suction end by bernoulli's law. The jet device can be made into various structural forms according to different working conditions and media, and is not limited to the structure in the figure, for example, the water outlet end of the jet device does not need to be provided with a taper hole, the taper hole at the water inlet end of the jet device is only used for reducing resistance, if the taper hole is not adopted, the function can be realized, only a high-speed moving object is used for taking away molecules close to the surface of the jet device, so that vacuum is generated, for example, if the surface of a train is smooth, the head of the train can increase the surrounding pressure when the train advances at high speed, but the body of the train can take away air to generate negative pressure, so that the surrounding pressure is reduced, and suction is generated on the object close to the train (which is the essence of Bernoulli's law understood by people and is also convenient to be understood by people), so that in principle, the jet device can be used as long as water flows through one fine hole, and the design of other fine structures only ensures that the pressure loss is smaller, the suction force is greater. Since the jet device is widely used in the industrial field and various open structural drawings exist on the net, the patent only provides one simple structural form. Meanwhile, the three ports of the jet device are not limited to be manufactured in one part, and can also be formed by splicing a plurality of parts, for example, the water inlet end, the water outlet end and the suction end are divided into three parts which are spliced together to form a whole.

The overall scheme of the manufacturing process of the water heater is shown in fig. 1 only as a schematic diagram for facilitating understanding, main parts are spread out as much as possible and are not overlapped so as to facilitate understanding and viewing, the actual structure is compact as much as possible, and meanwhile, the details of known technologies in the industry such as a temperature sensor, a water level sensor, a control circuit board and the like are also omitted in the drawing. The liner of this patent can be formed by blow molding of PP, and its bottom is designed with an opening for the parts of the device that must be connected to the liner 2, such as various pipe joints and water level sensing devices. The water level response of inner bag can adopt reed switch, hall switch, resistance induction, electric capacity response, radar response, various forms such as infrared induction, and the more economic scheme is reed switch response and hall response, and the essence of these two kinds of modes all is the magnetic induction, can adorn inductive switch at the top of inner bag, reaches the float that can float inductive switch when the water level, when reaching the magnetic induction distance, and master control circuit control solenoid valve closes. As shown in fig. 1, there are four pipe fittings to be connected to the inner container, one is a spray pipe assembly 14 for adding water into the inner container, one is an outlet for hot water from the inner container, and the other two connectors are circulation connectors for heating water stored in the inner container. This 4 interface subassemblies can be integrated on a part, and the disc about 8 centimetres of external diameter of preparation that this part can be simple directly makes 4 interfaces on the disc, for example adopt screw thread mold insert injection moulding, owing to there is not pressure, also can only set up four holes, follow-up installation silica gel circle, refute with it the joint that connects and directly insert into can. The disc is mounted on an opening of the blow-molded liner and sealed by a rubber ring. The temperature control valve 10 and the non-return valve 9 are assembled on the fluidic device 3 to form an assembly, and the three parts can also be integrated on one or two parts, for example, the temperature control valve and the non-return valve are manufactured in one part, or the non-return valve is manufactured on the fluidic device, or the three parts are directly manufactured into one part, which is all possible and mainly depends on the die and the assembling process. As for the water outlet connector 13 of the water heater, it can be directly integrated on the fluidic device 3, because in the actual product, the 90-degree bend angle as shown in the figure is not needed, but is straight, so the mold can be made into a whole, even the bend, only the slide on the mold can be used for molding. The heater 4, the heat exchanger 5, the heater shell 6, and some necessary temperature sensors and temperature tripping switches (bimetal mechanical type, dry heating prevention) are assembled together to form a main heating unit. The water inlet connector 12 of the water heater is respectively connected with the electromagnetic valve 8 and the water flow sensing unit 11 through a tee joint (the water flow sensing unit generally adopts a Hall water flow switch). The inner container 2 is firstly installed in the shell 1, the components are sequentially installed in the shell, the connectors are connected, the circuit board is installed, the circuit is connected, and the water heater can enter a testing link.

Fig. 3 is another solution of the first embodiment, and the fluidic device 3 is placed in front of the main heating unit without the thermostatic valve 10, and the fluidic device is placed in front of the heating unit, which may cause problems, and although the water resistance of the whole water heater is the same, the hot-cold water ratio is increased correspondingly after the resistance of the water outlet end of the fluidic device is increased, which affects the adjustable range of the hot-cold water ratio of the fluidic device. Another effect is that the temperature in the main heating unit increases, for example, the ratio of hot water to cold water is 2:1, the temperature in the inner container is 70 degrees, and if the temperature of the outlet water is 45 degrees, and after the weighted average (2x +70)/3 is 45 degrees, x is 32.5 degrees, as shown in the structure of fig. 1, the main heating unit only needs to heat the water to 32.5 degrees. As with the configuration of fig. 3, how high the set temperature is, how high the temperature must be heated. The higher the temperature, not only the heat load of the heater is greater, but also the heater is more heavily scaled. Fig. 2 is a scheme which is slightly inferior to that of fig. 1, but is much better than the traditional scheme, so that the scheme is one of the optional schemes, the temperature adjusting valve 10 can be eliminated, only the cold-hot water ratio is fixed according to the proper working condition in a factory, and the problem that the heater cannot work at full power for many times can be solved by increasing the volume of the inner container. Meanwhile, the one-way valve is unnecessary in an open water outlet water heater only used for bathing, and only water is fed by switching on and off.

Fig. 4 and 5 respectively have an additional feature compared with fig. 2, for example, fig. 4 is added with a temperature adjusting valve 10, fig. 5 is added with a water discharge pipe 15 which has a larger function according to the structure shown in the figure and is not only used for the function of emptying the liner, and a filter screen is added on a bypass leading to the jet device, so that the jet device can be prevented from being blocked by large scale, large scale or sand can be deposited in the water discharge pipe, the function is equivalent to the function of the cecum of the human body, but the water discharge pipe is much better than the cecum, and the water discharge pipe can be used for discharging the emptied impurities periodically by arranging a valve at the tail end of the water discharge pipe.

Example two

As shown in figure 6, the scheme adds the auxiliary heating unit 17, simultaneously cancels the water pump 7, is a very practical scheme, if not considering the potential too high fault rate caused by too many electrical elements and large current connectors, has better practical use effect than the scheme I, and has the main advantages that the main heater of the scheme can not form scale, because the auxiliary heater heats the water in the liner, the main heater is at the temperature of forming scale, and particularly, the cast aluminum heater is adopted, so that the possibility of scale formation is avoided. The auxiliary heater is located in a large space, the scaling influence on the surface of the heater is small, and scale can be prevented from being attached through surface treatment. Except for the addition of a heater and the absence of a water pump, other features are identical to those of the first embodiment and will not be described again.

EXAMPLE III

Fig. 7 is a scheme that a main heater is arranged in an inner container, natural convection is generated by using the temperature difference of water to heat the water in the inner container, so that a water pump 7 is omitted, and the opening and closing of a convection channel on a heater shell 6 are controlled by adding a thermal bulb assembly 18, so that the water flowing through a heat exchanger 5 can be heated instantly, the water stored in the inner container can be heated, and the water and the heat can be heated together. The thermal bulb component utilizes the principle of expansion with heat and contraction with cold to push the movable part to move back and forth, and the working mode is as follows: when the temperature in the heater shell 6 is higher than the initial opening temperature of the thermal bulb, the ejector rod of the thermal bulb overcomes the spring force to stretch and work, the sealing cover of the heater shell 6 is opened, and the water in the heater shell 6 and the water in the inner container 2 perform heat convection. On the contrary, when the temperature in the heater shell is lower than the opening temperature of the bulb, the water in the inner container is not heated, and only the water in the heat exchanger 5 is heated. When the instant heating mode is adopted, water flows through the heat exchanger to be heated, heat energy generated by the heater is taken away by the water flow in the heat exchanger, and the temperature in the heater shell is not higher than the opening temperature of the thermal bulb. When the water heater is at the instant heating temperature, the heat exchanger does not have rivers to pass through, and the heater also can work all the time, and the temperature in the heater shell rises rapidly, makes the apron jack-up of thermal bulb subassembly, heats the water in the inner bag to predetermineeing the temperature. The fluidic device 3 in fig. 7 can be mounted on the outside of the inner container, and a temperature control valve can be installed, and the structure is completely the same as that of the embodiment except for the main heating unit and the bulb assembly instead of the water pump. The bulb warming component can be replaced by an electric mechanism, and only the convection channel on the heater shell can be opened or closed at a proper time.

Example four

As shown in fig. 8, the present embodiment uses a floating ball device instead of the solenoid valve, except that other configurations are the same as the first embodiment. The water level of the inner container is completely controlled by the water level, so that when the inner container supplies hot water to the outside, cold water is supplemented, and the mode of water inlet at the lower part and hot water outlet at the top part can be adopted. The hot water output rate of the scheme is not high as that of the embodiment, and simultaneously, scale and silt cannot be automatically removed, so that the water heater can store and contain dirt like the traditional water storage type water heater. But because of the advantages of cost and performance, the advantages of the electric water heater are obvious compared with the traditional electric water heater and are one of the alternatives, although the advantages are larger than those of the first embodiment and the second embodiment.

EXAMPLE five

As shown in fig. 9, the embodiment provides a structure of a pressure-bearing liner, and the metal liner is adopted to match with a jet device, so that compared with a traditional multi-mode water heater, the practical scheme is to use a plastic liner, increase or decrease a pressure valve 19 at a water inlet of the liner, control the pressure in the liner, increase a stop valve 20, wherein the stop valve is used for primarily filling the liner with water, and the jet device can flow a part of water without passing through the liner when the water heater is opened to discharge water, thereby causing waste. Compared with other schemes in the prior art, the scheme has the advantages that the inner container can provide extra pressure, so that the water yield of the water heater is larger (the flow limiting effect of the jet device is obvious, the flow is reduced to be the only short plate of the water heater, but if little pressure is applied to the inner container, the requirement on the suction force of the jet device is not high, the area of a jet hole of the jet device can be increased, and the water yield is obviously improved). The scheme can only adopt a scheme of discharging hot water from the top, the hot water output rate is not as good as that of discharging hot water from the bottom, and the scheme is a protective scheme.

EXAMPLE six

As shown in fig. 10, the present solution has no fluidic device, and is only a common tee, and the self-priming function of the fluidic device is replaced by a water pump, except that other structural forms are completely consistent with the previous embodiment. The water pump of this scheme can adopt the speed governing water pump to the proportion of self-adaptation hot water output. For example, when a user opens hot water, the main heating unit works at full power, if the water temperature is insufficient, the water supply amount is gradually increased by the water pump, the outlet water reaches a preset temperature, and if the outlet water is positive, the water supply amount is reduced, and if the water supply amount of the water pump is zero, the temperature is too high, and the power of the heater is reduced. The water pump except the scheme has higher cost and failure rate than a jet device, and has the same advantages in other aspects. It should be additionally noted that the tee may be independent, integrated on another part, or a plurality of parts may be combined together to form the tee. In short, any variant structure that functions as a tee to achieve the mixing of the two flows of water in the patent is within the scope of the tee in the claims.

The above examples are not intended to be exhaustive or to limit the utility model to the precise forms disclosed, and all combinations and subcombinations of the various aspects of the utility model are contemplated as falling within the scope of the utility model.

Claims (10)

1. The utility model provides a running water multimode constant temperature water heater, includes shell (1), inner bag (2), rivers induction element (11), its characterized in that: the jet device comprises a water inlet end (3a), a water outlet end (3b) and a suction end (3c), the suction end of the jet device is communicated with the inner container (2), and the water inlet end or the water outlet end of the jet device is communicated with the main heating unit.

2. The running water multimode constant temperature water heater of claim 1, characterized in that: the water jet device is characterized by further comprising a one-way valve (9), wherein the one-way valve (9) is communicated with the suction end (3c) of the water jet device, and the installation direction of the one-way valve does not allow tap water to flow into the inner container (2) through the suction end of the water jet device.

3. The running water multimode constant temperature water heater of claim 1, characterized in that: the inner container is open, an air outlet (24) is arranged on the inner container and communicated with the atmosphere, and the water feeding mechanism is connected between the water channel and the inner container in series and controls water feeding of the inner container.

4. The running water multimode constant temperature water heater of claim 1, characterized in that: the jet flow device also comprises a temperature adjusting valve (10) which is arranged on a water flow channel at the suction end of the jet flow device (3).

5. The active water multimode constant temperature water heater according to claim 1, 2, 3 or 4, characterized in that: also comprises an auxiliary heating unit (17) which is assembled in the inner container (2).

6. The active water multimode constant temperature water heater according to any one of claims 1 to 4, characterized in that: the main heating unit comprises two water flow channels which are isolated from each other and a water pump, wherein the water pump (7), one of the water flow channels of the main heating unit and the inner container (2) are connected together to form a heating circulation channel.

7. The active water multimode constant temperature water heater according to claim 1, 2, 3 or 4, characterized in that: the main heating unit is assembled at the bottom of the inner container, the main heating unit comprises two water flow channels which are isolated from each other, and the main heating unit and the inner container perform thermal circulation through a thermal expansion element or a pump or an electric control mechanism.

8. The running water multimode constant temperature water heater according to claim 1 or 3, characterized in that: the suction end of the jet device (3) is connected with the bottom of the inner container, and the jet device further comprises a jet pipe assembly (14), wherein the jet pipe assembly is provided with a nozzle, and the structure of the nozzle enables the bottom of the inner container to be flushed when the water heater adds water into the inner container.

9. The live water multimode constant temperature water heater according to claim 1, 2 or 4, characterized in that: the water-saving type water-saving valve also comprises a pressure reducing valve (19), and the pressure reducing valve is arranged at the water inlet end of the inner container.

10. The utility model provides a running water multimode constant temperature water heater, includes shell (1), inner bag (2), rivers induction element (11), its characterized in that: still include water pump (7), check valve, tee bend device (21), main heating unit, the inner bag is for opening the structure, the suction end intercommunication inner bag bottom of water pump, the check valve is installed on the water intaking or the exhalant canal of water pump, and its installation direction does not allow the running water to flow in the inner bag, the play water end intercommunication of water pump tee bend one of them interface, the tee bend communicates with main heating unit.

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