CN110207368B

CN110207368B - Soft water heater

Info

Publication number: CN110207368B
Application number: CN201810166913.9A
Authority: CN
Inventors: 王雯雯; 王明; 张中海
Original assignee: Midea Group Co Ltd; Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Priority date: 2018-02-28
Filing date: 2018-02-28
Publication date: 2024-01-05
Anticipated expiration: 2038-02-28
Also published as: CN110207368A

Abstract

The invention discloses a soft water heater, comprising: the water heater comprises a water heater body, a water heater and a water heater, wherein the water heater body is provided with a soft water inlet and a hot water outlet; a soft water resin tank, wherein a resin cavity is defined in the soft water resin tank; the outlet of the resin cavity is selectively communicated with one end of the waste water pipe and the soft water inlet; a regenerated brine tank, wherein a brine cavity is defined in the regenerated brine tank; the control valve assembly is provided with a water inlet hole, a drainage hole and a water outlet hole, wherein the water outlet hole is selectively communicated with at least one of the drainage hole and the water inlet hole and is configured to lead water to the soft water resin tank when the water outlet hole is only communicated with the water inlet hole, and lead the regenerated brine to the soft water resin tank when the water outlet hole is communicated with the drainage hole. According to the soft water heater provided by the embodiment of the invention, the soft water is provided for a user to bath, the user experience is improved, and the energy efficiency and the safety of the product are high.

Description

Soft water heater

Technical Field

The invention relates to the technical field of water heaters, in particular to a soft water heater.

Background

The water heater in the related art comprises an inner container, a heating system, an auxiliary system and the like, tap water in the inner container is heated through the heating system, and the tap water contains high-concentration metal ions such as calcium, magnesium and the like, so that the hardness of the tap water is high, the alkalinity is strong, and long-term use of alkaline water for bathing can lead skin to be dry, the cleaning effect is influenced, and the experience is poor; and because the inner container is heated unevenly, scale is easy to form in the inner container, the suspended scale can block the pipe orifice, if the suspended scale is attached to a heating system, the energy efficiency of a product can be influenced, the safety of the product can be even reduced, the personal safety of a user can be seriously endangered, the generation of the scale can be timely prevented, the scale in the inner container can be timely cleaned, and the water quality of the inner container is very necessary for the user.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the soft water heater, which has less scale and good performance.

The soft water heater according to an embodiment of the present invention includes: the water heater comprises a water heater body, a water heater and a water heater, wherein the water heater body is provided with a soft water inlet and a hot water outlet; a soft water resin tank having a resin cavity defined therein for accommodating an ion exchange resin, the resin cavity having a resin cavity inlet and a resin cavity outlet; a waste pipe, the resin cavity outlet being selectively communicated with one end of the waste pipe and the soft water inlet; a regeneration brine tank defining a brine chamber therein for containing regeneration brine, the brine chamber having a brine chamber outlet; the control valve assembly is provided with a water inlet hole, a drainage hole and a water outlet hole, the water outlet hole is selectively communicated with at least one of the drainage hole and the water inlet hole, the control valve assembly is configured to enable the water inlet hole to be communicated with the soft water resin tank when the water outlet hole is only communicated with the water inlet hole, and enable the drainage hole to be communicated with the soft water resin tank to regenerate brine when the water outlet hole is communicated with the drainage hole.

According to the soft water heater provided by the embodiment of the invention, the soft water resin tank is arranged to soften water flow, so that the water entering the water heater body is softened water, softened water can be provided for a user for bathing, and the user experience is improved; meanwhile, scale formation in the water heater body is avoided, and the energy efficiency and safety of the product are improved; by arranging the regenerated brine tank, the resin in the soft water resin tank can be reduced and regenerated, and the reduction of the exchange capacity of the resin caused by long-term use is prevented, so that the energy efficiency of the product is further improved.

According to an embodiment of the present invention, the water softener, the control valve assembly includes: the water inlet hole, the drainage hole and the water outlet hole are formed in the pipe joint, the drainage hole is communicated with the outlet of the salt water cavity, and the water outlet hole is communicated with the inlet of the resin cavity; the on-off valve is connected between the drainage port and the salt water cavity outlet to control the water path on-off between the drainage port and the salt water cavity outlet, and when the on-off valve is opened and water is supplied to the water inlet, a negative pressure area is formed at the drainage port to suck regenerated salt water in the salt water cavity into the resin cavity.

According to the soft water heater provided by the embodiment of the invention, the pipe joint is provided with the water inlet cavity communicated with the water inlet hole, the water outlet cavity communicated with the water outlet hole and the mixing cavity connected between the water inlet cavity and the water outlet cavity, the drainage hole is communicated with the mixing cavity and is arranged adjacent to the water inlet cavity, and the cross section area of the water inlet cavity is gradually reduced along the flow direction of water flow.

According to the soft water heater provided by the embodiment of the invention, the pipe joint is a venturi pipe.

According to the soft water heater provided by the embodiment of the invention, the on-off valve is an electromagnetic valve or a manual switch.

According to another embodiment of the present invention, the water softener, the control valve assembly includes: a water inlet hole is formed at one end of the first control valve, and a water outlet hole is formed at the other end of the second control valve; the second control valve is connected between the first control valve and the regenerated brine tank, one end of the second control valve is communicated with the water inlet hole, and the other end of the second control valve forms a drainage hole and is communicated with the outlet of the brine cavity.

The soft water heater according to the embodiment of the invention further comprises: the reversing assembly is provided with a first water through port, a second water through port and a third water through port, wherein the first water through port is optionally communicated with the second water through port and the third water through port, the first water through port is communicated with the outlet of the resin cavity, the second water through port is communicated with the waste water pipe, and the third water through port is communicated with the soft water inlet.

Optionally, the reversing component is a three-way valve.

According to the soft water heater provided by the embodiment of the invention, the regenerated brine tank is provided with the water supplementing port for supplementing water into the brine cavity.

Optionally, the water supplementing port is communicated with the outlet of the resin cavity through a water supplementing pipe.

Further, the water replenishing pipe is connected with a check valve so that water flows along the extending direction of the water replenishing pipe from the outlet of the resin cavity to the water replenishing port in one direction.

Optionally, a float switch is arranged in the brine cavity to control the water supplementing pipe to stop supplementing water when the water level in the brine cavity reaches a preset water level.

According to the soft water heater provided by the embodiment of the invention, the regenerated brine tank is provided with the overflow port communicated with the brine cavity.

According to the soft water heater provided by the embodiment of the invention, the regenerated brine tank is provided with the brine adding port and the sealing cover for opening and closing the brine adding port.

Further, the method further comprises the following steps: a salting reminder configured to issue a reminder when a usage time of the regenerated brine in the regenerated brine tank reaches a predetermined time.

According to the soft water heater provided by the embodiment of the invention, the resin cavity inlet is arranged at the top of the soft water resin tank, the resin cavity is internally provided with the water distribution plate which is positioned above the ion exchange resin, and the water distribution plate is provided with a plurality of water distribution holes which are arranged at intervals.

According to the soft water heater provided by the embodiment of the invention, the ratio of the capacity of the ion exchange resin in the resin cavity to the capacity of the regenerated brine in the brine cavity is more than or equal to 2.

The soft water heater according to the embodiment of the invention further comprises: the shell, be limited with in the shell and hold the chamber, just the shell has water inlet, delivery port and waste water mouth, the water heater body soft water resin jar the regeneration brine pitcher all is located hold the chamber, the water inlet with the inlet opening intercommunication, the delivery port with hot water outlet intercommunication, the waste water mouth with the other end intercommunication of waste water pipe.

According to the soft water heater provided by the embodiment of the invention, the heating element is arranged in the water heater body and is used for heating water in the water heater body.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of a structure of a water softener according to an embodiment of the present invention;

fig. 2 is an operational state diagram of a water softener according to an embodiment of the present invention.

Reference numerals:

the water softener 100 is provided with a water heater,

a water heater body 10, a soft water inlet 11, a hot water outlet 12, a heating element 13,

soft water resin tank 20, resin cavity 201, resin cavity inlet 21, resin cavity outlet 22, water distribution plate 23,

a regenerated brine tank 30, a brine cavity 301, a brine cavity outlet 32, a water supplementing port 34, a water supplementing pipe 35, a check valve 36, a float switch 37, an overflow port 38, a sealing cover 39,

a pipe joint 40, a water inlet 41, a drainage 42, a water outlet 43,

the on-off valve 50, the first control valve 51, the second control valve 52,

a reversing assembly 60, a first water port 61, a second water port 62, a third water port 63,

housing 70, receiving chamber 701, water inlet 71, water outlet 72, waste water port 73,

the flow of waste 80, overflow tube 81,

a first on-off valve 91, a second on-off valve 92, and a relief valve 93.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The water heater is a closed structure and comprises an inner container, a heating system, an auxiliary system and the like, in the daily use process, since tap water contains high-concentration metal ions such as calcium, magnesium and the like, the hardness of the tap water is high, scale is easily formed in the inner container due to uneven heating and heating in the inner container of the water heater, if suspended scale is formed, a pipe orifice is blocked, if the suspended scale is attached to a heating pipe, the energy efficiency of a product is influenced, the safety of the product is even reduced, and the personal safety of a user is seriously endangered.

In addition, scale can form dissolution balance in water in the inner container, and impurities and heavy metals wrapped in the scale can be slowly dissolved out; the scale can also provide an attachment point for thermophilic bacteria in the inner container, which is beneficial to the growth and propagation of the bacteria, and the harm to the user can be caused in the process of bathing. Therefore, the generation of scale is prevented in time, the scale in the inner container is cleaned, and the optimization of the water quality of the inner container of the water heater is necessary for users. If the water entering the water heater is softened water, the deposition of scale in the inner container can be prevented, and a series of safety and water quality problems caused by scaling of the inner container and the heater are avoided.

Therefore, the invention provides the soft water heater, which can prevent scale deposition in the liner and avoid a series of safety and water quality problems caused by scaling of the liner and the heater.

A soft water heater 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 2.

As shown in fig. 1 to 2, a water softener 100 according to one embodiment of the present invention includes: a water heater body 10, a soft water resin tank 20, a regeneration brine tank 30, a control valve assembly, and a wastewater pipe 80.

The water heater body 10 has a soft water inlet 11 and a hot water outlet 12, a resin chamber 201 is defined in the soft water resin tank 20, the resin chamber 201 is used for accommodating ion exchange resin, and the resin chamber 201 has a resin chamber inlet 21 and a resin chamber outlet 22, and the resin chamber outlet 22 can be selectively communicated with one end of the waste water pipe 80 or can be selectively communicated with the soft water inlet 11. A brine chamber 301 is defined within the regenerated brine tank 30, the brine chamber 301 for containing regenerated brine, and the brine chamber 301 has a brine chamber outlet 32.

The control valve assembly has a water inlet hole 41, a water drain hole 42, and a water outlet hole 43, the water outlet hole 43 being selectively communicated with at least one of the water drain hole 42 and the water inlet hole 41, and the control valve assembly is configured such that the water inlet hole 41 communicates water to the soft water resin tank 20 when the water outlet hole 43 is communicated with only the water inlet hole 41, and the water drain hole 42 communicates regenerated brine to the soft water resin tank 20 when the water outlet hole 43 is communicated with the water drain hole 42.

According to the soft water heater 100 provided by the embodiment of the invention, the soft water resin tank 20 is arranged to soften water flow, so that the water entering the water heater body 10 is softened water, and softened water can be provided for a user for bathing, and the user experience is improved; meanwhile, scale formation in the water heater body 10 is avoided, and the energy efficiency and safety of the product are improved; by providing the regeneration brine tank 30, the ion exchange resin in the soft water resin tank 20 can be regenerated by reduction, and the decrease of the water softening capacity of the ion exchange resin due to long-term use can be prevented, thereby further improving the energy efficiency of the product.

As shown in fig. 1, according to an embodiment of the present invention, the control valve assembly includes a pipe joint 40 and an on-off valve 50, the pipe joint 40 has a water inlet 41, a drainage hole 42 and a water outlet 43, the drainage hole 42 is communicated with the brine chamber outlet 32, the water outlet 43 is communicated with the resin chamber inlet 21, and the on-off valve 50 is connected between the drainage hole 42 and the brine chamber outlet 32, so that the on-off of a waterway between the drainage hole 42 and the brine chamber outlet 32 can be controlled.

Wherein, when the on-off valve 50 is opened and water is supplied to the water inlet hole 43, a negative pressure region is formed at the drainage hole 42 of the pipe joint 40, so that the regenerated brine in the brine chamber 301 can be sucked into the resin chamber 201. Thus, by providing the pipe joint 40, the regenerated brine can be pumped into the soft water resin tank 20 without additionally providing a device for pumping the regenerated brine, which is advantageous in reducing the number of components and simplifying the structure.

According to an embodiment of the present invention, the pipe joint 40 has a water inlet chamber (not shown), a water outlet chamber (not shown), and a mixing chamber (not shown), the water inlet chamber may be communicated with the water inlet hole 41, the water outlet chamber may be communicated with the water outlet hole 43, the mixing chamber is connected between the water inlet chamber and the water outlet chamber, the drainage hole 42 is communicated with the mixing chamber, and the drainage hole 42 is disposed adjacent to the water inlet chamber, the cross-sectional area of the water inlet chamber gradually decreases along the flow direction of the water flow.

When water is introduced into the water inlet chamber through the water inlet hole 41, a negative pressure region may be formed at the water introduction hole 42 to suck the regenerated brine in the brine chamber 301 into the mixing chamber of the pipe joint 40, and thus into the resin chamber 201. The regenerated brine enters the soft water resin tank 20, and the regenerated brine passes through the ion exchange resin, so that the resin is subjected to ion exchange, and the capability of the resin for removing calcium and magnesium ions is recovered.

Specifically, when the exchange capacity of the ion exchange resin is reduced and the removal rate of the hardness of the effluent is obviously reduced, the flow sensor is used for prompting the regeneration of the ion exchange resin, and whether the ion exchange resin is regenerated or not can be controlled by calculating the treatment water amount according to the filling amount of the ion exchange resin and the hardness of the inlet water.

According to one embodiment of the invention, the tube fitting 40 is a venturi tube. The venturi tube is directly adopted, independent processing and manufacturing are not needed, the production efficiency is improved, the venturi tube is simple in structure and high in stability, negative pressure can be formed at the drainage hole 42 rapidly and stably, and accordingly regenerated brine is sucked into the resin cavity 201.

According to one embodiment of the present invention, the on-off valve 50 is a solenoid valve. The electromagnetic valve is directly adopted, the structure is simple, and the on-off of a waterway between the drainage port 42 and the brine cavity outlet 32 is controlled through the electromagnetic valve, so that the function switching is realized. Namely, when the soft water resin tank 20 softens water, the solenoid valve is controlled to be in a closed state; when it is necessary to perform resin reduction regeneration on the ion exchange resin in the soft water resin tank 20, the solenoid valve is controlled to be in an open state.

Of course, the on-off valve 50 can also be a manual switch, and the on-off of the waterway between the drainage port 42 and the brine cavity outlet 32 can be controlled by the manual switch, so that the cost can be reduced, and the popularization is convenient. When the soft water resin tank 20 softens water, the on-off valve 50 is manually closed; when it is necessary to perform resin reduction regeneration on the ion exchange resin in the soft water resin tank 20, the on-off valve 50 is manually opened.

As shown in fig. 2, according to another embodiment of the present invention, a control valve assembly includes: a first control valve 51 and a second control valve 52, wherein one end of the first control valve 51 forms a water inlet hole 41, and the other end of the second control valve 52 forms a water outlet hole 43. The second control valve 52 is connected between the first control valve 51 and the regenerated brine tank 30, and one end of the second control valve 52 communicates with the water inlet hole 41, and the other end of the second control valve 52 forms the drainage hole 42 and communicates with the brine chamber outlet 32.

Specifically, when the soft water resin tank 20 needs to soften water, the first control valve 51 is controlled to be in an open state, and the second control valve 52 is controlled to be in a closed state; when it is desired to perform resin reduction regeneration on the ion exchange resin in the soft water resin tank 20, the first control valve 51 and the second control valve 52 may be controlled to be simultaneously in an open state.

According to one embodiment of the present invention, the water softener 100 further includes a reversing assembly 60, the reversing assembly 60 having a first water passage 61, a second water passage 62, and a third water passage 63, the first water passage 61 being in communication with the resin chamber outlet 22, the second water passage 62 being in communication with the wastewater pipe 80, the third water passage 63 being in communication with the soft water inlet 11. The first water port 61 may be communicated with the second water port 62 or the third water port 63, and the resin chamber outlet 22 may be selectively communicated with the waste 80 or the soft water inlet 11 of the water heater body 10 by controlling the first water port 61 to communicate with one of the second water port 62 and the third water port 63.

When the water is softened, the first water through port 61 of the reversing assembly 60 is communicated with the third water through port 63, tap water enters the soft water resin tank 20, and the soft water inlet 11 of the water heater body 10 is communicated with the resin cavity outlet 22 through the softening treatment of the ion exchange resin in the resin cavity 20, so that the softened water flows into the water heater body 10.

When the ion exchange resin regeneration is carried out, the first water port 61 of the reversing assembly 60 is communicated with the second water port 62, regenerated brine in the brine cavity 301 is sucked into the water outlet cavity of the pipe joint 40, then the regenerated brine is sucked into the resin cavity 201, the regenerated brine passes through the ion exchange resin, the ion exchange resin is subjected to reduction regeneration, at the moment, the outlet 22 of the resin cavity is communicated with the waste water pipe 80, waste water generated during the reduction regeneration treatment is discharged from the waste water pipe 80, and the waste water pipe 80 can be directly connected to a toilet or a sewer pipe.

The water flow direction of the ion exchange resin is identical to that of the soft water during the reduction regeneration, so that the ion exchange resin is easy to harden, and the regeneration efficiency is affected. At this time, the first water port 61 of the reversing assembly 60 may be controlled to communicate with the second water port 62, i.e., the resin cavity outlet 22 communicates with the waste water pipe 80, the third water port 63 is closed, then tap water is connected to the waste water pipe 80, tap water is opened to enter the soft water resin tank 20 through the waste water pipe 80, the ion exchange resin in the resin cavity 201 is loosened, after the resin cavity 201 is filled with water, tap water is entered into the soft water inlet 22, the waste water pipe 80 is drained, and the water in the soft water resin tank 20 is washed and drained in the forward direction, and the above operations are repeated, so that the problem of hardening of the ion exchange resin can be well alleviated.

As shown in fig. 1, in some examples, the reversing assembly 60 may be a three-way valve. The three-way valve is directly adopted, the structure is simple, independent processing and manufacturing are not needed, the production efficiency is improved, and the communication between the first water through port 61 and the second water through port 62 or the communication between the first water through port 61 and the third water through port 63 can be conveniently realized through the three-way valve.

Of course, the structure of the reversing assembly 60 is not limited to the three-way valve, for example, the reversing assembly 60 may include two on-off valves, one of which is connected between the soft water resin tank 20 and the waste pipe 80, and the other of which is connected between the soft water resin tank 20 and the water heater body 10, and the above-described function switching may be still achieved by controlling the on-off of the two on-off valves, respectively.

According to one embodiment of the invention, the regenerated brine tank 30 is provided with a water replenishment port 34, the water replenishment port 34 being used to replenish the brine chamber 301 with water. Wherein, the tap water pipe can be directly communicated with the water supplementing port 34, so that tap water can be directly communicated into the regenerated brine tank 30; the softened water treated in the soft water resin tank 20 may be introduced into the water supply port 34, thereby supplying the softened water into the brine chamber 301, and further, the regenerated salt may be better dissolved.

As shown in fig. 1, in some examples, the water supplementing port 34 is communicated with the resin cavity outlet 22 through a water supplementing pipe 35, and the stability of the connection between the water supplementing port 34 and the resin cavity outlet 22 can be improved by connecting the water supplementing pipe 35, so that the water supplementing port 34 and the resin cavity outlet 22 are communicated with each other conveniently. During non-regeneration, the water replenishing pipe 35 can replenish water into the brine cavity 301 of the regenerated brine tank 30; during regeneration, the water replenishment pipe 35 stops replenishing water into the brine chamber 301, which would otherwise dilute the brine, affecting the regeneration.

In some specific examples, the water replenishing pipe 35 is connected with a check valve 36, and by providing the check valve 36, water flow can be caused to flow unidirectionally from the resin chamber outlet 22 to the water replenishing port 34 along the extending direction of the water replenishing pipe 35, thereby preventing brine in the regenerated brine tank 30 from flowing into the soft water inlet 11 and the resin chamber 201 through the water replenishing pipe 35.

In some alternative examples, a float switch 37 is arranged in the brine cavity 301, and when the water level in the brine cavity 301 reaches a preset water level, the float switch 37 can control the water supplementing pipe 35 to stop supplementing water, so that excessive water in the brine cavity 301 is prevented, and the regeneration effect on the ion exchange resin is prevented.

As shown in fig. 1, the regenerated brine tank 30 is provided with an overflow port 38, the overflow port 38 being in communication with the brine chamber 301, according to one embodiment of the invention. By providing an overflow port 38, if excess brine is drained from the brine chamber 301 through the overflow port 38 when the float switch 37 fails, it is ensured that the brine in the brine chamber 301 does not exceed a predetermined level, wherein the overflow port 38 may be connected to the waste 80 via an overflow pipe 81, and thereby drained through the waste 80.

As shown in fig. 1, according to an embodiment of the present invention, a salt adding port (not shown) and a sealing cover 39 are provided on the regenerated brine tank 30, and the sealing cover 39 is used to open and close the salt adding port. When the concentration of the regenerated brine is lower, salt can be added into the regenerated brine tank 30 through the salt adding port in time, and the sealing cover 39 is covered at the salt adding port in time at the salt adding end port to prevent impurities from entering.

The sealing cover 39 can be sealed on the salt adding port in a buckling and opening mode, and can also be arranged at the salt adding port in a screwing mode. The state of the regenerated salt is not particularly limited, and may be a solid salt block or a granular salt.

In a specific example, the water softener 100 further includes a salt adding reminder (not shown) that can issue a reminder when the usage time of the regenerated brine in the regenerated brine tank 30 reaches a predetermined time. The reminding mode can be an audio prompt, a lamplight prompt and the like. Meanwhile, the time period of adding salt can be calculated through the volume of the brine tank, so that the salt adding reminding device sends out reminding.

According to one embodiment of the present invention, the resin cavity inlet 21 is disposed at the top of the soft water resin tank 20, the resin cavity 201 is provided with a water distribution plate 23, the water distribution plate 23 is located above the ion exchange resin, and the water distribution plate 23 has a plurality of water distribution holes (not shown in the figure) disposed at intervals. After the tap water enters the soft water resin tank 20, the water distribution plate 23 can enable the tap water to uniformly enter the resin cavity 201, so that the utilization rate of the ion exchange resin and the softening effect on the water are improved, and the formation of a runner is avoided. The water distribution plate 23 may be disposed outside the resin chamber 201, for example, at a lower end of the pipe joint 40 in the water flow direction.

According to one embodiment of the present invention, the ratio of the capacity of the ion exchange resin in the resin chamber 201 to the capacity of the regenerated brine in the brine chamber 301 is greater than or equal to 2. Specifically, in theory, 1L of ion exchange resin requires 160g of regenerated salt, and 1L of water can dissolve 360g of salt, so the capacity of the ion exchange resin is equal to or greater than twice the capacity of regenerated brine, i.e., the capacity of the ion exchange resin in the resin chamber 201 is equal to or greater than twice the capacity of regenerated brine in the brine chamber 301.

As shown in fig. 1, the water softener 100 according to one embodiment of the present invention further includes a housing 70 having a receiving chamber 701 defined therein, the housing 70 having a water inlet 71, a water outlet 72, and a water outlet 73, the water softener body 10, the soft resin tank 20, and the regeneration salt tank 30 being disposed in the receiving chamber 701, the water inlet 71 being in communication with the water inlet 41, the water outlet 72 being in communication with the hot water outlet 12, the water outlet 73 being in communication with the other end of the waste pipe 80. The overflow port 38 of the regenerated brine tank 30 may also be directly connected to the waste water port 73. By arranging the water heater body 10, the soft water resin tank 20 and the regenerated brine tank 30 in the accommodating chamber 701, a plurality of components are integrated, so that the structure is more compact.

In some examples, the water heater body 10 has a heating element 13 therein, the heating element 13 being used to heat water within the water heater body 10. Specifically, the softened water enters the water heater body 10 through the soft water inlet 11 on the water heater body 10, the front end of the soft water inlet 11 is provided with a safety valve 93 for protecting the inner container of the water heater body 10 in the water flow direction, the heating element 13 is arranged at the upper end of the water heater body 10, the upper end of the water heater body 10 is also provided with a flange plate, the heating element 13 is arranged on the flange plate, the heating element 13 is prevented from falling off, and the softened water after heating is discharged from the hot water outlet 12.

A specific embodiment of the water softener 100 according to the present invention is described below with reference to fig. 1 and 2.

As shown in fig. 1 and 2, the water softener 100 includes: the water heater comprises a housing 70, a water heater body 10, a soft water resin tank 20, a regenerated brine tank 30, a pipe joint 40, an on-off valve 50, a reversing assembly 60 and a waste 80. The housing 70 defines a housing chamber 701 therein, and the housing 70 has a water inlet 71, a water outlet 72, and a waste water outlet 73, and the water heater body 10, the soft water resin tank 20, and the regeneration brine tank 30 are all disposed in the housing chamber 701. The waste gate 73 communicates with a waste pipe 80. The waste 80 may be connected to a source of tap water.

The water heater body 10 has a soft water inlet 11 and a hot water outlet 12, the hot water outlet 12 communicates with a water outlet 72, and a heating element 13 is provided in the water heater body 10. The soft water resin tank 20 is internally limited with a resin cavity 201, the upper part of the resin cavity 201 is provided with a water distribution plate 23, the resin cavity 201 is provided with a resin cavity inlet 21 and a resin cavity outlet 22, the resin cavity inlet 21 is positioned at the upper side of the resin cavity 201, and the resin cavity outlet 22 is positioned at the lower side of the resin cavity 201.

The regenerated brine tank 30 is positioned at the lower side of the soft water resin tank 20, a brine cavity 301 is defined in the regenerated brine tank 30, the brine cavity 301 is provided with a brine cavity outlet 32, a water supplementing port 34, a brine adding port, a float switch 37 and an overflow port 38, the water supplementing port 34 is communicated with the resin cavity outlet 22 through a water supplementing pipe 35, a check valve 36 is connected to the water supplementing pipe 35, and the overflow port 38 is communicated with a wastewater port 73. The sealing cover 39 is used to open and close the salting port.

The pipe joint 40 is a venturi tube, and the on-off valve 50 is a solenoid valve. The pipe joint 40 has a water inlet hole 41, a drainage hole 42 and a water outlet hole 43, the water inlet hole 41 is communicated with the water inlet 71, the drainage hole 42 is communicated with the brine cavity outlet 32, the water outlet hole 43 is communicated with the resin cavity inlet 21, the on-off valve 50 is connected between the drainage hole 42 and the brine cavity outlet 32, and when the on-off valve 50 is opened and water is supplied to the water inlet hole 43, a negative pressure area is formed at the drainage hole 42 of the pipe joint 40, so that regenerated brine in the brine cavity 301 can be sucked into the resin cavity 201.

The reversing assembly 60 is a three-way valve. The reversing assembly 60 has a first water passage 61, a second water passage 62, and a third water passage 63, the first water passage 61 being in communication with the resin chamber outlet 22, the second water passage 62 being in communication with the waste 80, the third water passage 63 being in communication with the soft water inlet 11.

When the water softener 100 works, tap water is softened firstly, the first on-off valve 91 and the on-off valve 50 are closed, the water inlet 41 and the water outlet 43 of the pipe joint 40 are communicated, tap water is opened, the tap water enters the resin cavity 201 of the soft water resin tank 20 through the water inlet 71, the water inlet 41 and the water outlet 43, softened water flows out through the resin cavity outlet 22, the first water inlet 61 and the third water inlet 63 of the reversing assembly 60 are communicated, the safety valve 93 is opened, and therefore softened water enters the water softener body 10 through the soft water inlet 11, and flows out through the hot water outlet 12 and the water outlet 72 after being heated by the heating element 13 in the water softener body 10. When the check valve 36 is opened, demineralized water may be introduced into the regeneration brine tank 30 to dissolve the regeneration salt.

When the ion exchange resin in the soft water resin tank 20 is required to be reduced and regenerated after a certain period of use, the on-off valve 50 is opened, regenerated brine in the brine cavity 301 is sucked into the soft water resin tank 20 through the drainage hole 42 of the pipe joint 40, the regenerated brine passes through the ion exchange resin in the resin cavity 201 to enable the ion exchange resin to perform ion exchange, the capability of removing calcium and magnesium ions is recovered, namely, the ion exchange resin is reduced and regenerated, the first water port 61 of the reversing assembly 60 is communicated with the second water port 62, namely, the outlet 22 of the resin cavity is communicated with the waste pipe 80, waste water generated after the reduction and regeneration is discharged from the waste pipe 80, and the waste pipe 80 can be directly connected to a toilet or a sewer pipe.

When the ion exchange resin is hardened to affect the regeneration efficiency, the first water through port 61 of the reversing assembly 60 is communicated with the second water through port 62, namely the resin cavity outlet 22 is communicated with the waste water pipe 80, the third water through port 63 is closed, the waste water pipe 80 is directly connected with tap water, the tap water is opened to feed water, the tap water is flushed into the soft water resin tank 20 through the waste water pipe 80 and the resin cavity outlet 22, the ion exchange resin in the resin cavity 201 is loosened, after the resin cavity 201 is filled with water, the tap water is then led into the resin cavity 201 through the soft water inlet 22, the waste water pipe 80 is drained, and the water in the soft water resin tank 20 is flushed and discharged in a forward direction, and the operation is repeated, so that the hardening problem of the ion exchange resin is relieved.

According to the soft water heater 100 disclosed by the embodiment of the invention, the water treated by the soft water resin tank 20 enters the water heater body 10 and is heated, and calcium and magnesium ions in the water are removed from the softened water, so that scale generation in the water heater body can be avoided, in addition, the soft water for bathing can be provided for a user, and the effects of removing dandruff, relieving itching, making hair soft and having a natural hair style can be realized by frequently washing hair with the soft water by the user; the softened water also has the effect of skin care, and the softened water is frequently used for bathing, so that the skin is tender and smooth, the body dander is obviously reduced, the skin has no tight feel, and the makeup removal are very easy.

Other constructions and operations of the water softener 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A soft water heater, comprising:

the water heater comprises a water heater body, a water heater and a water heater, wherein the water heater body is provided with a soft water inlet and a hot water outlet;

a soft water resin tank having a resin cavity defined therein for accommodating an ion exchange resin, the resin cavity having a resin cavity inlet and a resin cavity outlet;

a waste pipe, the resin cavity outlet being selectively communicated with one end of the waste pipe and the soft water inlet;

a regeneration brine tank defining a brine chamber therein for containing regeneration brine, the brine chamber having a brine chamber outlet;

a control valve assembly having a water inlet, a water outlet, and a water outlet, the water outlet being selectively in communication with at least one of the water outlet and the water inlet, and the control valve assembly being configured to communicate water from the water inlet to the soft resin tank when the water outlet is in communication with only the water inlet, and to communicate regenerated brine from the water soft resin tank when the water outlet is in communication with the water outlet;

the control valve assembly includes:

the water inlet hole, the drainage hole and the water outlet hole are formed in the pipe joint, the drainage hole is communicated with the outlet of the salt water cavity, and the water outlet hole is communicated with the inlet of the resin cavity;

the on-off valve is connected between the drainage hole and the brine cavity outlet to control the water path between the drainage hole and the brine cavity outlet to be on-off, and when the on-off valve is opened and water is supplied to the water inlet hole, a negative pressure area is formed at the drainage hole to suck the regenerated brine in the brine cavity into the resin cavity;

a reversing assembly having a first water port, a second water port, and a third water port, the first water port optionally communicating with the second water port and the third water port,

the first water through port is communicated with the outlet of the resin cavity, the second water through port is communicated with the waste water pipe, and the third water through port is communicated with the soft water inlet.

2. The water softener according to claim 1, wherein said pipe joint has a water inlet chamber communicating with said water inlet hole, a water outlet chamber communicating with said water outlet hole, a mixing chamber connected between said water inlet chamber and said water outlet chamber,

the drainage hole is communicated with the mixing cavity and is arranged adjacent to the water inlet cavity, and the cross section area of the water inlet cavity is gradually reduced along the flow direction of water flow.

3. The water softener according to claim 1, wherein the pipe joint is a venturi.

4. The water softener according to claim 1, wherein the on-off valve is a solenoid valve or a manual switch.

5. The water softener according to claim 1, wherein the reversing assembly is a three-way valve.

6. The water softener according to claim 1, wherein the regenerated brine tank is provided with a water replenishment port for replenishing water into the brine chamber.

7. The water softener according to claim 6, wherein the water replenishment port communicates with the outlet of the resin chamber through a replenishment pipe.

8. The water softener of claim 7 wherein a check valve is attached to said water replenishment pipe to allow one-way flow of water from said resin chamber outlet to said water replenishment port in the direction of extension of said water replenishment pipe.

9. The water softener according to claim 7, wherein a float switch is provided in the brine chamber to control the water supply pipe to stop the water supply when the water level in the brine chamber reaches a predetermined level.

10. The water softener according to any one of claims 1-9, characterized in that the regeneration brine tank is provided with an overflow opening in communication with the brine chamber.

11. The water softener according to any one of claims 1 to 9, wherein a salted port and a sealing cover for opening and closing the salted port are provided on the regenerated salted water tank.

12. The soft water heater of claim 11, further comprising: a salting reminder configured to issue a reminder when a usage time of the regenerated brine in the regenerated brine tank reaches a predetermined time.

13. The water softener according to claim 1, wherein the inlet of the resin chamber is provided at the top of the soft water resin tank, a water distribution plate is provided in the resin chamber and above the ion exchange resin, and the water distribution plate has a plurality of water distribution holes arranged at intervals.

14. The water softener according to claim 1, wherein a ratio of a capacity of the ion exchange resin in the resin chamber to a capacity of the regenerated brine in the brine chamber is 2 or more.

15. The water softener according to claim 1, further comprising: a housing defining a receiving cavity therein, the housing having a water inlet, a water outlet and a waste water outlet,

the water heater body soft water resin jar the regeneration brine tank is all located hold the chamber, the water inlet with the inlet opening intercommunication, the delivery port with hot water outlet intercommunication, the waste water mouth with the other end intercommunication of waste pipe.

16. The water softener according to claim 1, wherein a heating member is provided in the water softener body for heating water in the water softener body.