CN214791898U

CN214791898U - Scale-proof energy-saving constant-temperature water heater

Info

Publication number: CN214791898U
Application number: CN202120901915.5U
Authority: CN
Inventors: 伍柏峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-11-19
Anticipated expiration: 2031-04-23

Abstract

The utility model belongs to the water heater field, in particular to energy-conserving constant temperature water heater of scale control. The utility model discloses an energy-conserving constant temperature water heater of scale control, including shell, inner bag, heater, rivers detecting element, still include fluidic device, the controlling means that intakes, fluidic device's suction end and inner bag intercommunication, the controlling means that intakes is connected between inner bag and water pipeline, and the control inner bag fills water, still includes at least one water level induction unit, water level induction unit is arranged in detecting the position of inner bag water level.

Description

Scale-proof energy-saving constant-temperature water heater

Technical Field

The utility model belongs to the water heater field, especially an energy-conserving constant temperature water heater of scale control.

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, the dual-mode instant heating mode is a water storage and heating mode, 25 liters of water can be satisfied by most users, but the problems are serious, the cost is high, the structure is complex, the failure rate is high, and the influence of scale formation in a small-volume inner container 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 the previous period, in order to solve the industrial problems, the inventor provides a technical scheme based on the Venturi effect: the utility model discloses a more simple water heater based on venturi effect, not only the cost is lower, and simple structure is reliable, still realizes advantages such as not long-pending incrustation scale, running water health, 100% hot water output rate, multimode heating, inner bag volume are adjustable equally, has social, has solved all these problems, and running water multimode constant temperature water heater's structure is simple, nevertheless has the space of simplifying.

SUMMERY OF THE UTILITY MODEL

For solving the deficiencies of the prior water heater technology, the utility model provides a new technical scheme.

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

the utility model provides an energy-conserving constant temperature water heater of scale control, includes shell, inner bag, heater, rivers detecting element, still includes fluidic device, the controlling means that intakes, fluidic device's suction end and inner bag intercommunication, the controlling means that intakes is connected between inner bag and water flow line, controls filling of inner bag, still includes at least one water level induction unit, water level induction unit is arranged in detecting the position of inner bag water level.

Furthermore, the anti-scaling energy-saving constant-temperature water heater also comprises a one-way valve, wherein 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.

The jet flow device is characterized by further comprising a temperature adjusting valve, wherein the temperature adjusting valve is installed between the suction end of the jet flow device and the inner container, the temperature adjusting valve is manual or automatic, and the temperature adjusting valve is used for adjusting the flow of the suction end of the jet flow device.

Optionally, the water inlet control device is an electromagnetic valve.

Optionally, the water inlet control device comprises a motor and a water amount adjusting mechanism, and the motor automatically adjusts the opening degree of the water amount adjusting mechanism.

Furthermore, the anti-scaling energy-saving constant-temperature water heater also comprises a ball float valve, wherein the ball float valve controls the highest water level of the inner container, and water is locked when the water inlet control device fails to feed water, so that the water in the inner container of the water heater is prevented from overflowing.

Furthermore, the inner container is provided with an exhaust port communicated with the atmosphere, the suction end of the jet device is directly or indirectly communicated with the bottom of the inner container, and 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 number of the fluidic devices is two or more, the two or more fluidic devices are installed in parallel or in series, and the two or more fluidic devices may be integrated into one component.

Optionally, the device further comprises a pump, wherein the pump is arranged on the water flow channel at the water outlet end or the water suction end of the ejector.

The water outlet pipe is provided with the bottom of the inner container, a bypass interface is arranged on the water outlet pipe, the bypass interface is directly or indirectly communicated with the suction end of the jet device, and a filter screen is arranged on the bypass interface.

Advantageous effects

The utility model discloses an energy-conserving constant temperature water heater of scale control of development no matter from cost, structural reliability, performance, health, energy-conservation, convenience all has huge advantage, has the meaning of popularization.

Drawings

The present invention will be further explained with reference to the drawings and examples

FIG. 1 is a schematic view of a first embodiment

FIG. 2 is a schematic view of the first embodiment

FIG. 3 is a schematic view of the first embodiment

FIG. 4 is a schematic view of a second embodiment

FIG. 5 is a schematic view of a third embodiment

FIG. 6 is a schematic view of a fourth embodiment

In the figure:

1. the water heater comprises a shell 2, an inner container 3, a heater 4, a water flow detection unit 5, a jet device 6, a water level sensing unit 7, a one-way valve 8, a temperature regulating valve 9, an electromagnetic valve 10, a motor 11, a water quantity regulating mechanism 12, a float switch 13, an exhaust port 14, a spray pipe assembly 15, a pump 16, a drain pipe 17, a water inlet joint 18 and a water outlet joint

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 present invention will be further explained with reference to the drawings and examples.

Example one

Fig. 1 to fig. 3 are schematic structural views of a water heater according to a first embodiment of the present invention, and the key feature of this embodiment is: the open type inner container uses the negative pressure generated by tap water flowing through the jet device to absorb hot water, uses the motor to control the water inlet speed and the water inlet quantity, and discharges the hot water 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 connector 17 of a water heater through a water flow detection unit 4 and is divided into two paths: one path of water passes through the water quantity adjusting mechanism 11 and then enters the spray pipe assembly 14, and then is injected into the liner 2 from the spray pipe assembly 14; the other path passes through the jet device 5 and then flows out through the water outlet joint 18. Secondly, introducing a water flow path and the operation principle of main electronic and electric components when the water heater is used, when a user opens a water using terminal to use hot water, tap water flows in from a water inlet connector 17 of the water heater and flows through a water flow detection unit 4, the water flow detection unit sends a signal to a central processing unit, if the temperature of the hot water in the inner container 2 does not reach a set value, the heater 4 works, before the water temperature reaches the set value, the motor 10 does not work, the water quantity adjusting mechanism 11 is in a closed state, and water is not added into the inner container 2; when the temperature in the inner container rises to a set value, the motor 10 is started, the water quantity adjusting mechanism 11 is opened, water is filled into the inner container 2, and the water flow is adjusted according to the temperature change in the inner container, so that the water temperature in the inner container is constant at the set value (when the water level reaches the highest limit position, water is not added into the inner container; or when the water quantity is more and more, the power is proved to be too high, and the power of the heater can be reduced at the moment); when water flows through the pores at the water inlet end of the jet device, the pressure is converted into flow velocity, high-speed jet generates vacuum at the suction end, the water pressure in the liner 2 is incident on the suction end of the flow device 5 by atmospheric pressure, and the two flows are mixed and then flow out from the water outlet joint 18 of the water heater. The proportion of cold water and hot water can be adjusted by adjusting the temperature adjusting valve 8, thereby adjusting the temperature of the outlet water. The flow rate of the cold water mixed into the inner container is always based on the constant temperature in the inner container, so that the temperature of the water heater is constant in the using process, and the constant temperature effect can be achieved. The water heater adopts a lower water outlet mode, so that hot water in the liner can be used up (when the water level is lowered to the lowest limit position, the heater stops working to avoid dry burning), and the hot water output rate of 100 percent is reached. The water heater can also adopt various control modes: 1. the capacity of the inner container is adjustable; 2. the capacity of the inner container is adjustable in stages; 3. and (4) rapidly heating water. The three control modes are described below, wherein the capacity of the liner is adjustable 1, the water level sensing modes adopted in fig. 1 and fig. 2 can continuously measure the position of the water level, and a user can set the water level according to needs by matching with an automatic water feeding mechanism, for example, when people are few, various water quantities such as half liner, 1/3, instant heating and the like can be selected, so that the heat loss can be reduced. 2. The inner bag capacity is stage-wise adjustable, can select the water level of different time quantum inner bags different, bathe for example the user evening, then the inner bag is full of water when evening, and daytime because tap is with less hot water, can keep warm with the low water level to reduce the heat and scatter and disappear, the energy saving. 3. The scheme is characterized in that when the hot water is used up, the water heater does not fill the inner container with water at a time and then slowly heat the inner container, but firstly heats the water to the lowest water level submerging the electric heating pipe, firstly heats a small amount of water to a set temperature, and then continuously heats the water while slowly adding water to maintain the temperature in the inner container to be always at the set temperature (the temperature deviation amplitude can be set in a program), so that when the water of the water heater is used up, the hot water can be immediately available for next use, and the water does not need to wait for half an hour or even one hour. On the other hand, the instant heating mode can be adopted, the water level in the liner is maintained at the lowest water level, if the structural design is proper, the water level only needs to maintain a small amount of water (such as 1.5 liters), the instant heating effect can be basically realized at the moment, when water is used, the water inlet control device adopts a strategy of maintaining the water level unchanged, namely the flow of inlet water is equal to the flow of outlet water of the liner, the temperature in the liner can be adjusted by changing the water quantity or the power of the electric heating pipe, and the water heater of the embodiment is equivalent to an instant heating water heater.

In fig. 1, the water level sensing unit 6 is a pressure level sensor capable of continuously measuring the level of the water. The water level is different, and pressure sensor confirms the water level in the courage through measuring pressure size. The pressure sensor is very precise, like some miniature electronic scales, the price is very cheap, but the measurement precision reaches 0.1 g, if the water pressure is on a silicon diaphragm, the area of the diaphragm is more than 5 square centimeters, the pressure of the diaphragm is increased by at least 5 g when the water level is increased by one centimeter, the water level is changed by one millimeter, the pressure is changed by 0.5 g, and the measurement precision can be accurately measured according to the precision of 0.1 g. The larger the diaphragm, the higher its accuracy. If the precision requirement is not high, the water level can be measured by the displacement generated by the hydraulic pressure pressing diaphragm, a contact can be driven by the displacement and is in contact with a conductive film or a coil of the adjustable resistor, and the water level can be continuously measured by the continuous change of the resistance value; this way, it is also possible to test the water level discontinuously by means of metal fingers or hall elements which are isolated from one another. The sensor is not shown in detail, and is a simple mature technology, and the sensor is not only simple to realize but also has a plurality of ways as long as the direction is determined.

The core that this technique can be realized is fluidic device 5, and fluidic device must keep the running water hot and cold water ratio not more than 1 in the pressure range of 0.1 ~ 0.7Mpa (normal running water pressure), certainly, the place that water pressure is big can be turned down the pressure through the valve, so the key lies in when low water pressure, keeps the hot and cold water ratio not more than 1 (this is not the restriction condition of this patent, for example when the ratio of cold water to hot water is greater than 1, equally available in the high temperature region, or turns to the temperature of inner bag higher also can be used, is not more than 1 and indicates a more ideal state). After a lot of tests, the requirements can be completely met even in a low-pressure area where water is supplied by a water tower as long as a jet flow structure is properly designed and the resistance of a terminal pipeline is reduced (the tap water pipe has little resistance and the water resistance comes from a valve or a shower head). Through a great amount of tests of the inventor and referring to other technical documents, once the pressure of a terminal pipeline is determined by the ejector, the cold-hot water ratio of the ejector is hardly changed by the change of the water supply pressure, and conditions are provided for achieving good use effect and even keeping constant temperature of the water heater. With the initial design of the jet structure, we have done cold water: hot water is about 0.8 and a proper flow rate is maintained at a low water pressure, and thus it can be confirmed that the present technology is completely feasible and excellent.

Referring to the technical introduction of the fresh water-activating scheme, 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 nozzle assembly 14 enable the water flow sprayed out of the nozzle assembly to flush the bottom of the inner container. Because the water heater can completely empty the hot water in the liner when using the hot water, when the liner is filled with water again, the water flow sprayed by the spray pipe assembly directly washes the bottom of the liner, silt and scale are washed to the lowest point (which is the water absorption position of the jet device), and trace impurities are absorbed and discharged when the water is used next time, and the process is repeated in this way, which is equivalent to that the liner is often 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.

As shown in fig. 1, the suction end of the fluidic device 5 is further connected with a one-way valve 7 and a temperature regulating valve 8, and the temperature regulating valve 8 is arranged at the front end of the one-way valve 7 in the figure, because the front end of the one-way valve has almost no water pressure, and only the pressure of water in the liner is negligible, which is beneficial to the sealing of the temperature regulating valve, and of course, if the temperature regulating valve and the one-way valve are regulated to be in one position, the temperature regulating valve and the one-way valve can also be regulated. The one-way valve and the tempering valve can also be integrated in the fluidic device as one integral part, in particular the one-way valve, which is more compact than a separate part integrated in the suction end of the jet. The one-way valve has a very simple structure, can be directly made into a diaphragm one-way valve by adopting a diaphragm, and can also adopt a form of a spring and a rubber ring. The temperature adjusting valve can be manual, namely a switch for adjusting the opening degree of water flow, a handle or a knob is arranged at a proper position of the water heater, and a user can adjust the temperature according to needs to achieve the purpose of setting the temperature of outlet water. In advanced versions, stepper motors may also be used to automatically adjust the temperature. The form of the heater in fig. 1 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, etc., which are within the protection scope of the present patent.

Fig. 2 is identical to fig. 1 except that the water level sensing unit 6 is in a different form, and fig. 2 is a view of an ultrasonic module for distance measurement, which is temperature compensated because the propagation speed of the sound waves is different at different temperatures. The water level sensing unit 6 of fig. 3 is a magnetic induction, and a reed switch or a hall element is installed at the center of a slide rod, and a magnet is installed in a float ball, which is a well-known technology and is not described much. The top of figure 3 is equipped with a float switch 12 which can be used alone to control the highest water level, or as a redundant mechanism, when the electronic unit fails and the inner container is filled with water uncontrollably, the float switch is used as a redundant protection to prevent the water heater from overflowing, avoiding unnecessary loss.

The general scheme of the manufacturing process of the water heater is shown in fig. 1 to 3, which are schematic diagrams for easy understanding, the main parts are spread out as much as possible and are not overlapped for easy understanding and viewing, the actual structure is as compact as possible, and the details of the known technology in the industry, such as a temperature sensor, a control circuit board and the like, are also omitted in the drawings. 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 sensing of inner bag can adopt various forms such as forced induction, tongue tube switch, hall switch, resistance induction, electric capacity response, radar response, infrared induction, and the more economic scheme is tongue tube sensing 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. In order to continuously sense the water level, the pressure sensing of fig. 1 or the ultrasonic sensing of fig. 2 may be employed. The two or three pipes that need to be connected to the liner include a spout assembly 14 for adding water to the liner, a drain pipe 16, and an interface for connecting a pressure sensing device that can also be connected to the drain pipe. The two interfaces can be integrated on the flange of the electric heating tube. The temperature control valve 8 and the non-return valve 7 are assembled on the fluidic device 5 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 a die and an assembling process. As regards the outlet connection 18 of the water heater, it can also be integrated directly on the fluidic device 5, since in the actual product, the 90-degree bend angle as shown in the figures is not necessary, but straight, so that the mould can be made in one piece, even if it is an elbow, it can be formed only by using a slide on the mould. The heater 3, and some necessary temperature sensors and temperature tripping switches (bimetal mechanical type, dry heating prevention) are assembled together to form a heating unit. The water inlet connector 17 of the water heater can be a part of the water flow sensing unit 4, and the moving part of the water flow sensing unit can be blocked by silt, so that the water flow sensing unit is assembled in a straight pipe of the water inlet connector under the ordinary condition, and is convenient to detach and clean (a water flow detection 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. In the technology, the drain pipe 16 has a larger function, and is not only used for 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, and large scale or silt can be deposited in the drain pipe, which is equivalent to the function of the human cecum, but is much better than the cecum, and a valve can be arranged at the tail end of the drain pipe to discharge empty sundries regularly.

Example two

As shown in fig. 4, the solution adopts the electromagnetic valve 9 to control the water feeding of the liner, the water level sensing unit 6 adopts a floating magnetic detection mode, and the water level sensing units are two upper and lower for sensing the highest water level and the lowest water level. The water inlet of the electromagnetic valve can not be adjusted, and the average water injection speed of the liner can only be realized through the on-off frequency, which is unfavorable for the service life of the electromagnetic valve. And continuous detection cannot be realized by adopting a floating magnetic water level detection mode. The present embodiment provides another solution that can implement part of the functionality.

EXAMPLE III

Fig. 5 is a schematic diagram of the third embodiment, and as shown, compared with fig. 1, only the pump 15 is added, and the pump 15 can achieve two purposes: the first purpose is to make it possible to achieve a zero cold water circulation; the second purpose is to overcome the resistance of terminal pipeline, valve and shower head. The ejector must consume the energy of tap water to suck hot water and has low efficiency of only about 30%, which results in that when the water pressure is not high enough, the terminal resistance is too high, the suction force is lost, or the suction force is not enough to maintain 1: 1. These disadvantages can be overcome if a pump is added to the water outlet end of the ejector. Since other structures are identical to those of the first embodiment, redundant description is not provided.

Example four

As shown in FIG. 6, the present embodiment eliminates the check valve and the temperature adjusting valve, and the elimination of the check valve can be applied to the occasion of closing the water inlet, or a linkage mechanism can be arranged, and when the water outlet is closed, the electromagnetic valve for water inlet is also automatically closed. Although this solution is not good, due to the advantages of the present technology, it cannot be excluded that other manufacturers will not use the solution, and the solution exists as a protective solution.

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

Claims

1. The utility model provides an energy-conserving constant temperature water heater of scale control, includes shell (1), inner bag (2), heater (3), rivers detecting element (4), its characterized in that: still include fluidic device (5), controlling means of intaking, fluidic device's suction end and inner bag (3) intercommunication, controlling means of intaking connects between inner bag and water pipeline, controls filling of inner bag, still includes at least one water level induction element (6), water level induction element is arranged in detecting the position of inner bag water level.

2. The anti-scaling energy-saving constant-temperature water heater according to claim 1, characterized in that: the water jet device is characterized by further comprising a one-way valve (7), wherein the one-way valve (7) is communicated with the suction end of the water jet device (5), and the mounting 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 anti-scaling energy-saving constant-temperature water heater according to claim 1, characterized in that: the jet flow device is characterized by further comprising a temperature adjusting valve (8), the temperature adjusting valve is installed between the suction end of the jet flow device and the inner container (2), the temperature adjusting valve is manual or automatic, and the temperature adjusting valve is used for adjusting the flow of the suction end of the jet flow device.

4. The anti-scaling energy-saving constant-temperature water heater according to claim 1, characterized in that: the water inlet control device is an electromagnetic valve (9).

5. The anti-scaling energy-saving constant-temperature water heater according to claim 1, characterized in that: the water inlet control device comprises a motor (10) and a water quantity adjusting mechanism (11), and the motor automatically adjusts the opening of the water quantity adjusting mechanism.

6. The anti-scaling energy-saving constant-temperature water heater according to any one of claims 1, 4 and 5, is characterized in that: the water inlet control device is characterized by further comprising a floating ball switch (12), wherein the floating ball switch controls the highest water level of the inner container, water is locked to enter when the water inlet control device is in failure, and water in the inner container of the water heater is prevented from overflowing.

7. The anti-scaling energy-saving constant-temperature water heater according to claim 1, characterized in that: the water heater is characterized in that the inner container (2) is provided with an exhaust port (13) communicated with the atmosphere, the suction end of the jet device (5) is directly or indirectly communicated with the bottom of the inner container, and the water heater further comprises a jet pipe assembly (14) provided with a nozzle, and the structure of the nozzle enables the bottom of the inner container to be flushed when water is added into the inner container by the water heater.

8. The anti-scaling energy-saving constant-temperature water heater according to claim 1, characterized in that: the number of the jet devices is two or more, the two or more jet devices are installed in parallel or in series, and the two or more jet devices can be integrated into one part.

9. The anti-scaling energy-saving constant-temperature water heater according to claim 1, characterized in that: the device also comprises a pump (15) which is arranged on a water flow channel at the water outlet end or the suction end of the ejector.

10. The anti-scaling energy-saving constant-temperature water heater according to claim 1, characterized in that: still include drain pipe (16), the bottom of inner bag is installed to the drain pipe, set up the bypass interface on the drain pipe, the suction end of bypass interface direct or indirect intercommunication fluidic device, install the filter screen on the bypass interface.