CN107514799A - An electric water heater with scale inhibiting function and its operating method - Google Patents

Abstract

The invention discloses an electric water heater with scale inhibiting function and an operation method thereof. The electric water heater with scale inhibiting function includes a scale inhibiting unit, a water storage unit and an auxiliary unit. The anti-scaling unit has a membrane module for filtering water, the water storage unit has a water storage liner, a first water inlet pipe, a hot water outlet pipe and a heating device, and the auxiliary unit has a second water inlet pipe, a cold outlet pipe, a concentrated water drain pipe, Control valve, steering valve and water mixer; the second water inlet pipe and concentrated water drain pipe are respectively connected to both ends of the membrane module, the membrane module, the first water inlet pipe and the cold outlet pipe are connected through a multi-way valve, and the first water inlet pipe There is a control valve; one end of the hot water outlet pipe is connected to the water storage tank, and the other end of the hot water outlet pipe is connected to the other end of the cold water outlet pipe through a water mixer; the heating device is connected to the water storage tank for heating the water storage The water in the inner tank; the concentrated water drain pipe communicates with the hot water outlet pipe through the steering valve. The electric water heater with scale inhibiting function effectively delays the formation of scale and prolongs the service life.

Description

An electric water heater with scale inhibiting function and its operating method

technical field

The invention relates to the field of home appliances, in particular to an electric water heater with scale inhibiting function and an operating method thereof.

Background technique

The electric water heater with scale inhibition function is a closed device composed of a water storage liner, heating system and auxiliary system. After long-term use, the electric water heater with scale inhibition function will Scale is formed, which causes problems such as low energy efficiency, inaccurate temperature sensing, and blockage of water pipes and showers. At present, the electric water heaters with anti-scaling function on the market are equipped with magnesium rods for sterilization, disinfection and rust removal, but the magnesium rods will be continuously consumed during use, and the general service life is two years, and it is difficult for ordinary users to Judging whether the magnesium rod needs to be replaced, if the replacement is too frequent, it is not economical for the user, and if it is exhausted without replacement for a long time, it cannot protect the inner tank from corrosion. In addition, some electric water heaters with anti-scaling function realize water purification by adding a pre-filter device to prolong the service life, but the pre-filter device requires regular maintenance and increases the cost.

Contents of the invention

Based on this, it is necessary to provide an electric water heater with a scale-inhibiting function that effectively delays scale formation and prolongs service life.

An electric water heater with a scale inhibiting function, comprising a scale inhibiting unit, a water storage unit and an auxiliary unit; the scale inhibiting unit has a membrane module for filtering water, the water storage unit has a water storage liner, a first inlet Water pipe, hot water outlet pipe and heating device, the auxiliary unit has a second water inlet pipe, cold water outlet pipe, concentrated water drain pipe, control valve, steering valve and water mixer;

The second water inlet pipe and the concentrated water drain pipe are respectively connected to both ends of the membrane module, and the scale inhibiting unit, one end of the first water inlet pipe and one end of the cold outlet pipe also pass through the The multi-way valve is connected, and the first water inlet pipe is provided with the control valve to prevent the hot water in the water storage liner from flowing back into the scale inhibiting unit and the cold outlet pipe; One end of the water pipe is connected to the water storage inner tank, and the other end of the hot outlet pipe is connected to the other end of the cold outlet pipe through the water mixer; the heating device is connected to the water storage inner tank for The water in the water storage liner is heated; the concentrated water drain pipe communicates with the hot water outlet pipe through the steering valve.

In one embodiment, the membrane module is a hollow fiber membrane, and the membrane material of the hollow fiber membrane is one or more of polyvinyl chloride, polyvinylidene fluoride, polysulfone, polyethersulfone, and polyamide .

In one embodiment, the scale inhibiting unit has a component water inlet, a component water outlet and a component water production port, the component water inlet is connected to the second water inlet pipe, and the component water outlet is connected to the concentrated water A drain pipe, the water production port of the component is connected to one of the interfaces of the multi-way valve.

In one of the embodiments, the auxiliary unit has a multi-way valve, and the anti-scaling unit, one end of the first water inlet pipe and one end of the cold outlet pipe are also connected through the multi-way valve, and the control The valve is arranged on the first water inlet pipe.

In one of the embodiments, the auxiliary unit further includes a distribution pipe, and the cold outlet pipe communicates with one of the interfaces of the multi-way valve through the distribution pipe.

Another object of the present invention is to provide a method for operating an electric water heater with scale inhibiting function.

A method for operating an electric water heater with scale inhibiting function, comprising the following steps:

S1. Turn on the water mixer, switch the steering valve so that the concentrated water drain pipe communicates with the lower side of the hot water outlet pipe, so as to drain the concentrated water from the concentrated water drain pipe and clean each component;

S2. After cleaning, open the control valve, switch the direction of the steering valve so that the hot water outlet pipe runs through and close the concentrated water drain pipe, and the hot water in the water storage liner flows out through the hot water outlet pipe;

S3. The hot water in the hot outlet pipe is mixed with the cold water in the cold outlet pipe after passing through the water mixer for use;

S4. When the water heater is stopped, change the steering valve so that the concentrated water drain pipe communicates with the lower side of the hot water outlet pipe again, and block the outflow of hot water, and at the same time close the control valve to return to the initial state.

The electric water heater with scale inhibiting function involved in the present invention adopts an integrated structure design, the equipment is highly integrated, the design is beautiful, and the cleaning and maintenance are convenient; it can realize automatic control of equipment, and effectively prolong the service life of the electric water heater with scale inhibiting function; the present invention relates to The electric water heater with anti-scaling function can realize that the hot and cold water flowing into the water mixer is purified water, and the water quality is safer and more reliable. The electric water heater with scale inhibiting function of the present invention adopts the hollow fiber membrane as a membrane module to separate and purify tap water, has a good purification effect, can effectively delay membrane fouling, has a simple operation method, and can realize the long life of the electric water heater with scale inhibiting function. Efficient and safe operation, high feasibility, prolong the service life of electric water heaters with scale inhibiting function, and ensure the safety of users.

Description of drawings

Fig. 1 is a schematic diagram of an electric water heater with scale inhibiting function according to an embodiment of the present invention.

Explanation of reference signs

100. Electric water heater with scale inhibiting function; 1. Membrane module; 2. Module water inlet; 3. Module water outlet; 4. Module water production outlet; 5. Water storage liner; 6. First water inlet pipe; 7. Sewage discharge 8. Hot water outlet pipe; 9. Second water inlet pipe; 10. Concentrated water drain pipe; 11. Diverter pipe; 12. Cold outlet pipe; 13. Multi-way valve; 14. Control valve; 15. Steering valve; 16 , Mixer; 17, control unit.

detailed description

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to FIG. 1 , this embodiment relates to an electric water heater 100 with scale inhibiting function. The electric water heater 100 with scale inhibition function includes a scale inhibition unit, a water storage unit, an auxiliary unit and a control unit 17 .

The scale inhibiting unit has a membrane module 1 for filtering water. The membrane module 1 is a hollow fiber membrane, and the membrane material of the hollow fiber membrane is one or more of polyvinyl chloride, polyvinylidene fluoride, polysulfone, polyethersulfone, and polyamide. The scale inhibiting unit has a component water inlet 2 , a component water outlet 3 and a component water production port 4 .

The water storage unit has a water storage liner 5, a first water inlet pipe 6, a hot water outlet pipe 8, a sewage pipe 7, a heating device and a temperature control device.

The auxiliary unit has a second water inlet pipe 9, a cold outlet pipe 12, a shunt pipe 11, a concentrated water drain pipe 10, a multi-way valve 13, a control valve 14, a steering valve 15, a water mixer 16 and an insulation layer.

The second water inlet pipe 9 and the concentrated water drain pipe 10 are respectively connected to both ends of the membrane module 1, the membrane module 1, one end of the first water inlet pipe 6 and one end of the shunt pipe 11 It is also communicated through a multi-way valve 13 , and the first water inlet pipe 6 is provided with the control valve 14 to prevent the hot water in the water storage liner 5 from flowing back into the scale inhibiting unit and the cold outlet pipe 12 . The above-mentioned multi-way valve may be a three-way valve or a four-way valve. When using a four-way valve, one of the valve ends is closed. The other end of the distribution pipe 11 communicates with one end of the cold outlet pipe 12 .

The membrane module 1 is located above the water storage inner tank 5, the first water inlet pipe 6 communicates with the water storage inner tank 5 from above the water storage inner tank 5, and extends into the water storage tank The bottom of the gall 5.

One end of the hot water outlet pipe 8 communicates with the water storage inner tank 5 , and the other end of the hot water outlet pipe 8 communicates with the other end of the cold outlet pipe 12 through the water mixer 16 . The end of the hot water outlet pipe 8 located in the water storage liner 5 is close to the lower part of the water storage liner 5 .

The heating device is connected to the water storage liner 5 for heating the liquid in the water storage liner 5; the temperature control device is connected to the water storage liner 5 for detecting the water storage liner 5, the temperature control device is also connected to the heating device. The control unit 17 is connected to the temperature control device and the heating device.

The first water inlet pipe 6 is provided with the control valve 14 . The concentrated water drain pipe 10 communicates with the hot water outlet pipe 8 through the diverter valve 15 .

The component water inlet 2 is connected to the second water inlet pipe 9, the component water outlet 3 is connected to the concentrated water drain pipe 10, and the component water production port 4 is connected to one of the interfaces of the multi-way valve 13 .

The insulation layer covers the outside of the water storage liner 5 . The insulation layer can keep the temperature of the liquid in the water storage liner 5 .

One end of the sewage discharge pipe 7 communicates with the water storage inner tank 5 , and the other end faces to the outside of the water storage inner tank 5 .

When the electric water heater 100 with scale inhibiting function involved in this embodiment is used, it relates to a method of using the electric water heater 100 with scale inhibiting function. A method for using an electric water heater 100 with scale inhibiting function, comprising the following steps:

S1. Open the control valve 14 and connect the second water inlet pipe 9 with the water pipe. The water in the water pipe enters the membrane module 1 and is filtered and purified by the membrane module 1 to obtain purified water. A part of the purified water passes through the first water inlet pipe 6 Enter the water storage liner 5, and the other part enters the cold outlet pipe 12;

S2, open the water mixer 16, open the steering valve 15 so that the concentrated water drain pipe 10 communicates with the hot water outlet pipe 8, so as to drain the concentrated water coming out of the concentrated water drain pipe 10 and clean each component;

S3, switch the direction of the steering valve 15 so that the hot water outlet pipe 8 passes through and close the concentrated water drain pipe 10, and the hot water in the water storage liner 5 flows out through the hot water outlet pipe 8;

S4, the hot water in the hot water outlet pipe 8 and the cold water in the cold water outlet pipe 12 are mixed after passing through the water mixer 16 for use;

S5. When the electric water heater 100 with scale inhibiting function is stopped, change the steering valve 15 so that the concentrated water drain pipe 10 communicates with the hot water outlet pipe 8 again, so that the water in the concentrated water drain pipe 10 Thick water enters in the described water storage liner 5.

The electric water heater 100 with the scale inhibiting function involved in the present invention adopts an integrated structure design, the equipment is highly integrated, the design is beautiful, and the cleaning and maintenance are convenient; it can realize automatic control of the equipment, and effectively prolong the service life of the electric water heater 100 with the scale inhibiting function; The electric water heater 100 with scale inhibiting function involved in the invention can realize that the hot and cold water flowing into the water mixer 16 are all purified water bodies, and the water quality is safer and more reliable. The electric water heater 100 with scale inhibition function of the present invention adopts the hollow fiber membrane as the membrane module 1

To separate and purify tap water, the purification effect is good, it can effectively delay membrane fouling, the operation method is simple, and it can realize the long-term and safe operation of the electric water heater 100 with scale inhibiting function. 100 service life to ensure the safety of users.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (6)

1. An electric water heater with scale inhibiting function is characterized in that it comprises a scale inhibiting unit, a water storage unit and an auxiliary unit; the scale inhibiting unit has a membrane module for filtering water, and the water storage unit has a water storage unit an inner tank, a first water inlet pipe, a hot water outlet pipe and a heating device, and the auxiliary unit has a second water inlet pipe, a cold water outlet pipe, a concentrated water drain pipe, a control valve, a steering valve and a water mixer; The second water inlet pipe and the concentrated water drain pipe are respectively connected to both ends of the membrane module, the scale inhibiting unit, one end of the first water inlet pipe and one end of the cold outlet pipe are connected, and the The first water inlet pipe is provided with the control valve to prevent the hot water in the water storage liner from flowing back into the scale inhibiting unit and the cold outlet pipe; one end of the hot water outlet pipe is connected to the Water storage liner, the other end of the hot water outlet pipe communicates with the other end of the cold water outlet pipe through the water mixer; the heating device is connected to the water storage liner for heating the water storage liner the water inside; the concentrated water drain pipe communicates with the hot water outlet pipe through the diverter valve. 2. The electric water heater with scale inhibiting function according to claim 1, wherein the membrane module is a hollow fiber membrane, and the membrane material of the hollow fiber membrane is polyvinyl chloride, polyvinylidene fluoride, polysulfone , polyethersulfone, polyamide in one or more. 3. The electric water heater with scale inhibiting function according to claim 1, characterized in that, the scale inhibiting unit has a component water inlet, a component water outlet and a component water production port, and the component water inlet is connected to the second The water inlet pipe, the component water outlet is connected to the concentrated water drain pipe, and the component water production port is connected to one of the interfaces of the multi-way valve. 4. The electric water heater with scale inhibiting function according to claim 3, characterized in that, the auxiliary unit further comprises a shunt pipe, and the cold outlet pipe communicates with one of the multi-way valves through the shunt pipe interface. 5. The electric water heater with scale inhibiting function according to any one of claims 1-4, characterized in that, the auxiliary unit has a multi-way valve, the scale inhibiting unit, one end of the first water inlet pipe and One end of the cold outlet pipe is also connected through the multi-way valve, and the control valve is arranged on the first water inlet pipe. 6. A method for operating an electric water heater with scale inhibiting function, comprising the steps of: S1. Turn on the water mixer, switch the steering valve so that the concentrated water drain pipe communicates with the lower side of the hot water outlet pipe, so as to drain the concentrated water from the concentrated water drain pipe and clean each component; S2. After cleaning, open the control valve, switch the direction of the steering valve so that the hot water outlet pipe runs through and close the concentrated water drain pipe, and the hot water in the water storage liner flows out through the hot water outlet pipe; S3. The hot water in the hot outlet pipe is mixed with the cold water in the cold outlet pipe after passing through the water mixer for use; S4. When the water heater is stopped, change the steering valve so that the concentrated water drain pipe communicates with the lower side of the hot water outlet pipe again, and block the outflow of hot water, and at the same time close the control valve to return to the initial state.