CN108386997B

CN108386997B - Water heater

Info

Publication number: CN108386997B
Application number: CN201810135924.0A
Authority: CN
Inventors: 张中海; 曲绍鹤; 王明; 曾云; 王雯雯
Original assignee: Midea Group Co Ltd; Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2018-02-09
Filing date: 2018-02-09
Publication date: 2021-06-22
Anticipated expiration: 2038-02-09
Also published as: CN108386997A

Abstract

The present invention provides a water heater, comprising: a heat exchange tube having an inlet and an outlet; the adding device is provided with an accommodating cavity, a water inlet, a water outlet and an adding port, the water inlet, the water outlet and the adding port are communicated with the accommodating cavity, the adding port is used for adding materials into the accommodating cavity, and the adding port is configured to be in an openable state; the inlet is communicated with the water outlet, the outlet is communicated with the water inlet to form a circulation loop for circulating medium flowing, and the circulation loop is provided with a circulation pump and a heating device for heating the circulation medium. According to the technical scheme, materials can be manually or automatically added into the containing cavity through the adding port, the circulating medium containing the materials can quickly and stably flow in the circulating loop by using the circulating pump, so that stable descaling and corrosion-relieving effects are obtained, the water quality in the heat exchange tube can be changed according to the will of a user, the bathing experience of the user is improved, the energy consumption of the water heater is reduced, and the service life of the water heater is prolonged.

Description

Water heater

Technical Field

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

Background

With the development of socio-economic, tap water can conveniently enter the home of users, but the tap water contains different ions, such as calcium ions, magnesium ions, carbonate ions and bicarbonate ions, which are inevitably contained in certain concentrations in common municipal tap water. After tap water enters the water heater, ions are subjected to chemical reaction due to heating to generate insoluble carbonate and are attached to a heating surface or a heat exchange surface, after the carbonate materials are accumulated for a long time, a thick layer of scale can be formed on the heating surface or the heat exchange surface, the heat conductivity coefficient of the scale is very low, energy consumption can be increased, and the scale can be dispersed into small particles in a repeated heating water environment and is deposited inside the water heater or flows out along with water, bathing experience of a user is influenced, even a shower head or a water outlet pipeline can be blocked, normal use of the water heater is further influenced, and potential safety hazards are caused.

Disclosure of Invention

In order to solve at least one of the above technical problems, an object of the present invention is to provide a water heater.

To achieve the above object, an embodiment of the present invention provides a water heater including: a heat exchange tube having an inlet and an outlet; the adding device is provided with an accommodating cavity, a water inlet, a water outlet and an adding port, the water inlet, the water outlet and the adding port are communicated with the accommodating cavity, the adding port is used for adding materials into the accommodating cavity, and the adding port is configured to be in an openable state; the inlet is communicated with the water outlet, the outlet is communicated with the water inlet to form a circulation loop for circulating medium flowing, and the circulation loop is provided with a circulation pump and a heating device for heating the circulation medium.

The water heater provided by the invention is provided with the adding device, specifically, the adding device is provided with an accommodating cavity, and a circulating loop for circulating medium flow is formed by communicating a water inlet communicated with the accommodating cavity with an outlet of the heat exchange tube and communicating a water outlet communicated with the accommodating cavity with an inlet of the heat exchange tube. By arranging the openable and closable adding port on the adding device, materials can be manually or automatically added into the accommodating cavity through the adding port, and optionally, the materials can be a scale remover, a scale inhibitor and a corrosion inhibitor, and also can be materials with the functions of protecting and refreshing skin, such as essential oil, vitamin C, a traditional Chinese medicine component, a traditional Chinese medicine reagent, collagen and the like. Through set up the circulating pump on circulation loop, can send into the heat exchange tube with above-mentioned material fast in, and make the circulation medium that contains the material flow fast and stably in circulation loop, thereby can obtain stable scale removal, hinder dirty, slow dirty, the effect of inhibition, and can change the quality of water in the heat exchange tube according to user's wish, experience with improving user's shower, have high-efficient and low-priced advantage, be favorable to reducing the water heater energy consumption simultaneously, and the life of extension water heater, practicality and reliability are higher.

It is worth saying that the circulation loop is also provided with a heating device to heat the circulation medium, and further, the temperature of the circulation medium can be controlled to quickly dissolve the material added into the accommodating cavity, so that the material can perform the optimal function.

Optionally, the circulating medium is water.

In addition, the water heater in the above embodiment provided by the invention may further have the following additional technical features:

in the above technical solution, preferably, the adding device includes: the box body is provided with an accommodating cavity, the top of the accommodating cavity is opened to form an adding port, and a water inlet and a water outlet are formed in two opposite sides of the box body; the box cover is covered on the adding port; wherein, lid and box body rotate to be connected or lid and box body sliding connection to but realize adding the opening and closing setting of mouth.

In this scheme, add the device and include matched with box body and lid, specifically, have the chamber that holds that is used for holding the material in the box body, the top that should hold the chamber opens and forms and adds the mouth, through will add the mouth and set up in the top that holds the chamber, can conveniently add the material to holding the intracavity, be difficult to the condition of leaking the material appearing in the in-process that adds the material, can understand, the aforesaid adds the mouth and also can set up in week side of box body to can set up a plurality of interpolation mouths. In addition, the water inlet and the water outlet which are arranged on the two opposite sides of the box body are used for connecting the containing cavity into the circulation loop, and dead angles are not easy to appear in the containing cavity by arranging the water inlet and the water outlet on the two opposite sides of the box body, so that the materials can flow in a better circulation mode, and the materials can play a better role and effect in the circulation flow process.

It will be appreciated that the water inlet and outlet need not be provided on opposite sides of the housing, but that this is only a preferred embodiment of the invention.

In addition, the lid is used for closing above-mentioned interpolation mouth, rotates through messenger's lid and box body to be connected or lid and box body sliding connection, but realizes adding the switching setting of mouth, has higher practicality, and the user can be convenient and fast ground with this interpolation mouth open or close.

In any of the above technical solutions, preferably, the box body and/or the box cover are made of transparent materials, and the transparent materials include glass and plastic; and/or the box body is provided with an observation hole, and a transparent cover plate is arranged at the observation hole.

In this scheme, be transparent material through setting up box body and/or lid, the person of being convenient for observes the dissolution condition of placing the material in the box body, and the practicality is good.

In addition, the box body can be provided with an observation hole, and the observation hole is provided with a transparent cover plate, so that the effect is realized.

In any of the above technical solutions, preferably, a filter screen is disposed at the water inlet and/or the water outlet; wherein the aperture of the filter screen is more than or equal to 40 μm and less than or equal to 200 μm.

In this scheme, be equipped with the filter screen through water inlet and/or delivery port department, and the aperture of filter screen is more than or equal to 40 μm to be less than or equal to 200 μm, realize filtering placing the material that holds in the chamber, thereby can reduce because the granule of material is great and make the inside water channel of heat exchanger take place the condition of blockking up, the reliability is high.

In addition, through the setting of filter screen, can make the large granule material in the circulation circuit pile up in filter screen department, only need regularly change the safety performance that the filter screen can improve the water heater, the practicality is high.

Optionally, the screen comprises a stainless steel screen, in particular, a single layer stainless steel screen and a double layer stainless steel screen.

Optionally, the filter screen is made of a temperature-resistant material, such as a porous filter structure made of a plastic material or a ceramic material.

In any of the above technical solutions, preferably, the method further includes: the injection mechanism comprises a storage box and a communicating pipe, wherein a plurality of storage positions which are mutually separated are arranged in the storage box, one end of the communicating pipe is communicated with the storage box, and the other end of the communicating pipe is used for communicating the adding port; the change-over switch is arranged between the communicating pipe and the storage box and used for controlling the communicating pipe to be communicated with any storage position.

In this scheme, be provided with injection mechanism, specifically, injection mechanism includes the storage box, has a plurality of storage positions of wall each other in the storage box, is used for storing different materials respectively, for example, can store the scale remover in first storage position, stores for storing the shower essential oil in the second, because completely cut off between first storage position and the second storage position, shower essential oil and scale remover can not mix in the storage box together. Through set up change over switch between communicating pipe and storage box to make the other end of communicating pipe and add mouthful cooperation setting, can control communicating pipe and arbitrary storage position intercommunication, thereby can realize injecting into the material convenient and fast ground in first storage position or the second storage position and add the device, furtherly, can also control the quality of injecting into the material that adds in the device.

Furthermore, the change-over switch can also control the conduction area between the communicating pipe and any storage bit, thereby realizing the injection speed of the control material and having higher practicability.

In any of the above technical solutions, preferably, the material includes one or a combination of the following:

scale remover, scale inhibitor, corrosion inhibitor, essential oil, vitamin C, traditional Chinese medicine component, traditional Chinese medicine reagent and collagen.

In any of the above technical solutions, preferably, the heating device includes: the heat exchange tube is arranged in the phase change energy storage box, and a space between the heat exchange tube and the phase change energy storage box is filled with a phase change energy storage material; and the heater is arranged at the first circulating pipe communicated with the inlet and the water outlet and is used for heating the circulating medium flowing through the first circulating pipe.

In this scheme, through setting up the heat exchange tube in the phase change energy storage case to space packing between heat exchange tube and phase change energy storage case has the phase change energy storage material, can utilize phase change material enthalpy value height, the big advantage of energy storage density, with heat energy storage in phase change material. When hot water is not needed, the circulating pump and the heater start to work, the circulating medium flowing through the first circulating pipe is heated by the heater, and the heated circulating medium flows into the heat exchange pipe, so that heat exchange occurs between the heat exchange pipe and the phase-change material, and the heat energy is stored in the phase-change material, so that when the hot water is needed, the cold water flowing through the heat exchange pipe exchanges heat with the phase-change material, and the heat in the phase-change material is replaced.

Optionally, the heater is an electric heater.

In any of the above technical solutions, preferably, the method further includes: the heat exchange tube is sleeved with the plurality of fins, and the adjacent two fins are arranged at intervals.

In this scheme, be equipped with the interval on the heat exchange tube and be provided with a plurality of fins, heat transfer area increases to have the heat transfer effect of preferred, and then can energy saving and consumption reduction, have the economic benefits of preferred, the practicality is higher.

Optionally, the heat exchange tubes are in the form of coils.

In any of the above technical solutions, preferably, the method further includes: the openings at the two ends of the water inlet pipe are respectively communicated with the inlet and the liquid source; one end of the water inlet branch pipe is opened and communicated with a flow dividing port arranged on the side wall of the water inlet pipe; the cold water interface of the thermostatic valve is communicated with the opening at the other end of the water inlet branch pipe, and the hot water interface of the thermostatic valve is communicated with the outlet; and one end opening of the water outlet pipe is communicated with a water spraying port of the thermostatic valve, and the other end opening of the water outlet pipe is used for being connected with a spraying device.

In this scheme, the opening at inlet tube both ends communicates with the entry and the liquid source of heat exchange tube respectively, and seted up the diffluence pass on the lateral wall of inlet tube, the diffluence pass communicates with the one end opening of inlet branch pipe, through setting up the thermostatic valve, and communicate the cold water interface of thermostatic valve and the other end opening of inlet branch pipe, the hot water interface of thermostatic valve and the export intercommunication of heat exchange tube, can adjust the leaving water temperature through the thermostatic valve, thereby can flow the water that accords with user's temperature requirement from the water jet of thermostatic valve, practicality and reliability are higher, the high or low condition of crossing of the high temperature of the water that is difficult for appearing flowing, the security has been promoted.

Optionally, a switch valve is arranged between the water inlet pipe and the liquid source and used for controlling the communication or the cut-off of the water inlet pipe and the liquid source and controlling the water inlet flow of the water inlet pipe. Wherein the liquid source is used for storing a circulating medium, such as water.

In addition, through setting up the outlet pipe, make the one end opening of outlet pipe and the water jet intercommunication of thermostatic valve, the other end opening of outlet pipe is connected with spray set for from the water can be with the form blowout of gondola water faucet, the practicality is higher.

In any of the above technical solutions, preferably, the method further includes: one end opening of the second circulating pipe is communicated with the water inlet, and the other end opening of the second circulating pipe is communicated with the inlet; and the reversing valve is arranged in the second circulating pipe and is used for controlling the conduction direction of the second circulating pipe.

In the scheme, the second circulating pipe is arranged, the opening at one end of the second circulating pipe is communicated with the water inlet, and the opening at the other end of the second circulating pipe is communicated with the inlet, so that a circulating loop can be formed, and the operations such as circulating heating, descaling and the like can be conveniently realized when the first water spray nozzle is closed. Through set up the switching-over valve in the second circulating pipe, can realize controlling the second circulating pipe and switch on, cut to and the direction that switches on of control second circulating pipe, and then can control circulation loop's flow direction, and can be when hot water supplies inadequately, through the direction that switches on of control second circulating pipe, make the circulation medium after the heating in the first circulating pipe can be through the hot water interface of second circulating pipe direct inflow thermostatic valve, in order to provide sufficient hot water, the practicality is higher.

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

FIG. 1 shows a schematic structural diagram of a water heater according to one embodiment of the present invention;

FIG. 2 shows a schematic structural diagram of an adding device according to an embodiment of the invention;

fig. 3 shows a schematic structural diagram of an adding apparatus according to another embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:

100 water heater, 102 heat exchange pipes, 104 adding device, 106 circulating pump, 108 heater, 110 first circulating pipe, 112 phase change energy storage tank, 114 phase change material, 116 fins, 118 water inlet pipe, 120 water inlet branch pipe, 122 thermostatic valve, 124 water outlet pipe, 126 second circulating pipe, 128 reversing valve, 1042 box body, 1044 box cover, 1046 water inlet, 1048 water outlet, 104A accommodating cavity, 104B filter screen and 104C observation hole.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

A water heater provided according to some embodiments of the present invention is described below with reference to fig. 1-3.

As shown in fig. 1 to 3, a water heater 100 according to an embodiment of the present invention includes: a heat exchange pipe 102 having an inlet and an outlet, an adding device 104, a circulation pump 106, and a heating device.

Specifically, the adding means 104 has a housing chamber 104A, and a circulation loop for circulating the medium is formed by communicating a water inlet 1046 communicating with the housing chamber 104A with an outlet of the heat exchange pipe 102 and communicating a water outlet 1048 communicating with the housing chamber 104A with an inlet of the heat exchange pipe 102. By providing the addition device 104 with an openable and closable addition port, a material can be manually or automatically added into the accommodation cavity 104A through the addition port, and optionally, the material can be a scale remover, a scale inhibitor, a corrosion inhibitor, or some material with skin care and skin refreshing properties, such as essential oil, vitamin C, a traditional Chinese medicine component, a traditional Chinese medicine reagent, collagen, and the like. Through set up circulating pump 106 on circulation loop, can send into heat exchange tube 102 with above-mentioned material fast to make the circulation medium that contains the material flow fast and stably in circulation loop, thereby can obtain stable scale removal, hinder dirty, slow dirty, the effect of inhibition corrosion, and can change the quality of water in the heat exchange tube 102 according to user's wish, experience in order to improve user's shower, have high-efficient and low-priced advantage, be favorable to reducing water heater 100 energy consumption simultaneously, and the life of extension water heater 100, practicality and reliability are higher.

It is worth to be noted that, a heating device is further disposed on the circulation loop to heat the circulation medium, and further, the temperature of the circulation medium can be controlled to rapidly dissolve the material added into the accommodating cavity 104A, so that the material can perform an optimal function.

Optionally, the circulating medium is water.

For example, when the descaling is required, a descaling agent is added into the accommodating cavity 104A through the addition port, and then the circulation pump 106 is used to circulate the circulation medium containing the descaling agent in the circulation loop, so as to achieve a better descaling effect. Furthermore, the heating device can quickly dissolve the descaling agent in the circulating medium, so that a better descaling effect is achieved.

For another example, when the user wants to change the water quality, the mint essential oil is added into the accommodating cavity 104A through the adding port, and then the circulating medium is circulated by the circulating pump 106, so that the mint essential oil can be well mixed in the circulating medium, and when the user wants to take a bath, the circulating medium containing the mint essential oil is sprayed out of the spraying device through the water outlet pipe 124 of the water heater 100, so as to improve the bathing experience of the user.

In one embodiment of the present invention, as shown in fig. 1 to 3, the adding means 104 includes: a box body 1042 with a containing cavity 104A, wherein the top of the containing cavity 104A is opened to form an adding port, and a water inlet 1046 and a water outlet 1048 are arranged at two opposite sides of the box body 1042; a box cover 1044 which is arranged on the adding opening in a covering manner; the box cover 1044 is rotatably connected with the box body 1042 or the box cover 1044 is slidably connected with the box body 1042, so that the opening and closing of the adding port can be realized.

In this scheme, add device 104 including matched with box body 1042 and lid 1044, specifically, have the chamber 104A that holds that is used for holding the material in the box body 1042, this top that holds chamber 104A opens and forms and adds the mouth, set up in the top that holds chamber 104A through adding the mouth, can conveniently add the material to holding in the chamber 104A, be difficult to the condition of leaking the material appearing in the in-process that adds the material, can understand, the aforesaid adds the mouth and also can set up in the week side of box body 1042, and can set up a plurality of interpolation mouths. In addition, the water inlet 1046 and the water outlet 1048 disposed on the two opposite sides of the box body 1042 are used for connecting the accommodating cavity 104A into the circulation loop, and dead angles are not likely to occur in the accommodating cavity 104A by disposing the water inlet 1046 and the water outlet 1048 on the two opposite sides of the box body 1042, so that the material can flow in a better circulation manner, and the material can exert a better effect in the circulation flow process.

It is understood that the water inlet 1046 and the water outlet 1048 are not necessarily disposed on opposite sides of the case 1042, and the above solution is only one preferred solution of the present invention.

In addition, lid 1044 is used for closing above-mentioned interpolation mouth, through making lid 1044 rotate with box body 1042 and be connected or lid 1044 and box body 1042 sliding connection, but realize the switching setting of interpolation mouth, has higher practicality, and the user can open this interpolation mouth or close convenient and fast ground.

The box cover 1044 is rotatably connected to the box body 1042 through a pivot, or rotatably connected through a hinge, which may be an inner hinge or an outer hinge. Or

The box cover 1044 and the box body 1042 are slidably connected through a guide rail slider assembly, specifically, one or more parallel guide rails are arranged on the peripheral side of the adding opening, and a slider capable of being matched with the guide rails is arranged on the box cover 1044, so that the box cover 1044 can slide relative to the box body 1042 to open and close the adding opening.

Optionally, one of the box body 1042 and the box cover 1044 is provided with a buckle, and the other is provided with a locking groove, when the box cover 1044 is covered on the adding port, the buckle is just arranged in the locking groove, thereby realizing the relative fixation of the box body 1042 and the box cover 1044.

Further, the box cover 1044 is rotatably connected to the box body 1042, and a torsion spring is disposed on a hinge shaft between the box cover 1044 and the box body 1042, so that the box body 1042 can automatically spring open when the buckle is separated from the locking groove.

Further, a sealing member is disposed at a connection portion between the box cover 1044 and the box body 1042, so that when the box cover 1044 covers the addition port on the box body 1042, the connection portion between the box cover 1044 and the box body 1042 can be better sealed, and thus the circulating medium and the material flowing through the box body 1042 are not easily leaked. Wherein, optionally, the sealing element is an elastic sealing ring or a sealant.

In some embodiments of the present invention, the case body 1042 and/or the case cover 1044 is made of a transparent material, which includes glass and plastic; and/or the box body 1042 is provided with an observation hole 104C, and a transparent cover plate is arranged at the observation hole 104C.

In this scheme, through setting up box body 1042 and/or lid 1044 for transparent material, the person of being convenient for observes the dissolution condition of the material of placing in box body 1042, and the practicality is good.

In addition, the box 1042 may be provided with an observation hole 104C, and a transparent cover may be disposed at the observation hole 104C.

In some embodiments of the present invention, as shown in fig. 2 and 3, a filter screen 104B is disposed at the water inlet 1046 and/or the water outlet 1048; wherein, the aperture of the filter screen 104B is greater than or equal to 40 μm and less than or equal to 200 μm.

In this scheme, be equipped with filter screen 104B through water inlet 1046 and/or delivery port 1048 department, and filter screen 104B's aperture is greater than or equal to 40 μm to be less than or equal to 200 μm, realize filtering the material of placing in holding chamber 104A, thereby can reduce because the granule of material is great and make heat exchange tube 102 take place the condition of jam, the reliability is high.

Wherein, the shape of the hole includes but is not limited to one or a combination of a plurality of rhombus, triangle, circle and ellipse.

In addition, through the setting of filter screen 104B, can make the large granule material in the circulation circuit pile up in filter screen 104B department, only need regularly change filter screen 104B can improve the security performance of water heater 100, the practicality is high.

Optionally, screen 104B comprises stainless steel screen 104B, specifically, a single layer stainless steel screen 104B and a double layer stainless steel screen 104B.

In some embodiments of the invention, the water heater further comprises: the injection mechanism comprises a storage box and a communicating pipe, wherein a plurality of storage positions which are mutually separated are arranged in the storage box, one end of the communicating pipe is communicated with the storage box, and the other end of the communicating pipe is used for communicating the adding port; the change-over switch is arranged between the communicating pipe and the storage box and used for controlling the communicating pipe to be communicated with any storage position.

In this scheme, be provided with injection mechanism, specifically, injection mechanism includes the storage box, has a plurality of storage positions of wall each other in the storage box, is used for storing different materials respectively, for example, can store the scale remover in first storage position, stores for storing the shower essential oil in the second, because completely cut off between first storage position and the second storage position, shower essential oil and scale remover can not mix in the storage box together. Through set up change over switch between communicating pipe and storage box to make the other end of communicating pipe with add mouthful cooperation setting, can control communicating pipe and arbitrary storage bit intercommunication, thereby can realize injecting into the material convenient and fast ground in first storage bit or the second storage bit and add device 104, furtherly, can also control the quality of injecting into the material that adds in the device 104.

For example, different members in a family can respectively correspond to one or more storage positions, and any family member can simply control the communication pipe to be communicated with the corresponding storage position through the change-over switch so as to trigger the materials preferred by the family member.

Optionally, the material comprises one or a combination of:

In some embodiments of the present invention, as shown in fig. 1, the heating device comprises: the heat exchange tube 102 is arranged in the phase change energy storage box 112, and a space between the heat exchange tube 102 and the phase change energy storage box 112 is filled with a phase change energy storage material 114; and a heater 108 disposed at the first circulation pipe 110 communicating the inlet and the outlet 1048 for heating the circulation medium flowing through the first circulation pipe 110.

In the present embodiment, the heat exchange tube 102 is disposed in the phase change energy storage tank 112, and the phase change energy storage material 114 is filled in the space between the heat exchange tube 102 and the phase change energy storage tank 112, so that the advantages of the phase change energy storage material 114, such as high enthalpy value and high energy storage density, can be utilized to store heat energy in the phase change energy storage material 114. When hot water is not needed, the circulation pump 106 and the heater 108 start to work, the circulation medium flowing through the first circulation pipe 110 is heated by the heater 108, and the heated circulation medium flows into the heat exchange pipe 102, so that heat energy exchange occurs between the heat exchange pipe 102 and the phase change energy storage material 114, the heat energy is stored in the phase change energy storage material 114, and when hot water is needed, cold water flowing through the heat exchange pipe 102 exchanges heat with the phase change energy storage material 114, and heat in the phase change energy storage material 114 is replaced.

Optionally, the phase change energy storage material 114 is a nano phase change material.

In some embodiments of the present invention, as shown in fig. 1, the water heater further comprises: the plurality of fins 116 are sleeved on the heat exchange tube 102, and two adjacent fins 116 are arranged at intervals.

In this scheme, be equipped with the interval on the heat exchange tube 102 and be provided with a plurality of fins 116, heat transfer area increases to have the heat transfer effect of preferred, and then can energy saving and consumption reduction, have the economic benefits of preferred, the practicality is higher.

Alternatively, the heat exchange tube 102 is in the shape of a coil.

In some embodiments of the present invention, as shown in fig. 1, the water heater further comprises: the openings at the two ends of the water inlet pipe 118 are respectively communicated with the inlet and the liquid source; an opening at one end of the water inlet branch pipe 120 is communicated with a flow dividing port arranged on the side wall of the water inlet pipe 118; a cold water interface of the thermostatic valve 122 is communicated with an opening at the other end of the water inlet branch pipe 120, and a hot water interface of the thermostatic valve 122 is communicated with an outlet; and one end of the water outlet pipe 124 is opened and communicated with a water spraying port of the thermostatic valve 122, and the other end of the water outlet pipe is opened and used for being connected with a spraying device.

In this scheme, the opening at inlet tube 118 both ends communicates with the entry and the liquid source of heat exchange tube 102 respectively, and seted up the reposition of redundant personnel mouth on the lateral wall of inlet tube 118, the reposition of redundant personnel mouth communicates with the one end opening of inlet branch 120, through setting up thermostatic valve 122, and communicate thermostatic valve 122's cold water interface and inlet branch 120's other end opening, thermostatic valve 122's hot water interface and heat exchange tube 102's export intercommunication, can adjust the leaving water temperature through thermostatic valve 122, thereby can follow the water jet outflow of thermostatic valve 122 and accord with user's temperature requirement's water, practicality and reliability are higher, the too high or the low condition of crossing of the temperature of the water that is difficult for appearing flowing, the security has been promoted.

In addition, through setting up outlet pipe 124, make the one end opening of outlet pipe 124 communicate with the water jet of thermostatic valve 122, the other end opening of outlet pipe 124 is connected with spray set for from the water can be with the form blowout of gondola water faucet, the practicality is higher.

In some embodiments of the present invention, as shown in fig. 1, the water heater further comprises: a second circulation pipe 126 having one end opening communicated with the water inlet 1046 and the other end opening of the second circulation pipe 126 communicated with the inlet; and a direction change valve 128 provided in the second circulation pipe 126 for controlling a conduction direction of the second circulation pipe 126.

In the present embodiment, by providing the second circulation pipe 126, and communicating the opening of one end of the second circulation pipe 126 with the water inlet 1046, and communicating the opening of the other end of the second circulation pipe 126 with the inlet, a circulation loop can be formed, which is convenient for realizing operations such as circulation heating and descaling when the first water jet is closed. The second circulation pipe 126 is provided with the reversing valve 128, so that the conduction and the cut-off of the second circulation pipe 126 can be controlled, the conduction direction of the second circulation pipe 126 can be controlled, the flowing direction of the circulation loop can be controlled, and when the hot water is not supplied enough, the circulation medium heated in the first circulation pipe 110 can directly flow into the hot water interface of the thermostatic valve 122 through the second circulation pipe 126 by controlling the conduction direction of the second circulation pipe 126, so that sufficient hot water can be provided, and the practicability is high.

In an embodiment of the present invention, an adding device 104 is disposed in the circulation loop, and the adding device 104 includes a filter screen 104B, a viewing hole 104C, a box cover 1044, a water inlet 1046 and a water outlet 1048. When necessary, a scale remover may be added to the adding device 104, and other agents, such as a scale inhibitor, and a corrosion inhibitor, may be added. The chemical agent can enter the heat exchange pipe 102 along with the circulating water path, thereby achieving the required effects of descaling, scale inhibition, scale release and corrosion inhibition. Advantageously, stable descaling, scale inhibition, scale slowing, and corrosion inhibition effects can be achieved by adding a fixed amount of the agent to the addition device 104.

In addition, the adding device 104 can be arranged on the water inlet pipe 118 or the water outlet pipe 124, and one or more of essential oil, vitamin C, traditional Chinese medicine reagent, collagen and other medicaments can be added into the adding device 104, and the medicaments can flow out with water flow or enter the inside of the water heater 100, so that a user can obtain a pleasant bathing feeling when bathing.

Alternatively, the medicament may be processed into a bagged powdery solid or a bagged solution, and also into a capsule or a pill, whereby dosing of the medicament may be better achieved.

Wherein, the filter screen 104B generally adopts a stainless steel filter screen 104B, the aperture is 40-200 microns, a single-layer stainless steel filter screen 104B is adopted, a plurality of layers of stainless steel filter screens 104B can also be adopted, and the aperture of the filter screen 104B is smaller than the particle size of the added medicament.

Through the scheme, the water in the circulating loop is subjected to circulating filtration to clean water quality. And can hold back the impurity of aquatic through filter screen 104B to through taking out and brushing filter screen 104B and realizing getting rid of impurity, make circulation circuit be difficult to take place to block up, improve the security performance, and this filter screen 104B can be utilized repeatedly. Through carrying out the loop filter to the water in the water heater 100, make it further optimize quality of water in the heating process, promote user's shower and feel. In addition, the user can add materials according to the requirement, for example, agents such as a descaling agent, a scale inhibitor, a corrosion inhibitor and the like are added, so as to realize descaling, scale inhibition and corrosion inhibition treatment on the water heater 100.

In conclusion, the water heater provided by the invention can utilize the added materials to rapidly remove the scale and/or achieve the effect of changing the water quality. For example, a user can add a descaling agent into the adding device and then operate the circulating pump to achieve the purpose of descaling the inner wall of the heat exchange tube. In addition, the user can also further change the water property by adding a nursing or odor-removing material into the adding device, so that the water property meets the user's desire.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," 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, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water heater, comprising:

a heat exchange tube having an inlet and an outlet;

the adding device is provided with an accommodating cavity, and a water inlet, a water outlet and an adding port which are communicated with the accommodating cavity, the adding port is used for adding materials into the accommodating cavity, and the adding port is configured to be in an openable state;

the inlet of the heat exchange tube is communicated with the water outlet of the adding device, the outlet of the heat exchange tube is communicated with the water inlet of the adding device to form a circulating loop for circulating medium to flow, and the circulating loop is provided with a circulating pump and a heating device for heating the circulating medium;

the heating device includes:

the heat exchange tube is arranged in the phase-change energy storage box, and a space between the heat exchange tube and the phase-change energy storage box is filled with a phase-change energy storage material;

the heater is arranged at a first circulating pipe which is communicated with the inlet of the heat exchange pipe and the water outlet of the adding device and is used for heating the circulating medium flowing through the first circulating pipe;

the water heater further includes:

one end opening of the second circulating pipe is communicated with the water inlet, and the other end opening of the second circulating pipe is communicated with the inlet;

and the reversing valve is arranged in the second circulating pipe and is used for controlling the conduction direction of the second circulating pipe.

2. The water heater according to claim 1, wherein the adding means comprises:

the top of the accommodating cavity is opened to form the adding port, and the water inlet and the water outlet are formed in two opposite sides of the box body;

the box cover is covered on the adding opening;

the box cover is connected with the box body in a rotating mode or connected with the box body in a sliding mode, so that the opening and closing of the adding opening can be achieved.

3. The water heater of claim 2,

the box body and/or the box cover are made of transparent materials, and the transparent materials comprise glass and plastics; and/or

The box body is provided with an observation hole, and a transparent cover plate is arranged at the observation hole.

4. The water heater according to any one of claims 1 to 3,

a filter screen is arranged at the water inlet and/or the water outlet;

wherein the aperture of the filter screen is more than or equal to 40 μm and less than or equal to 200 μm.

5. The water heater according to any one of claims 1 to 3, further comprising:

the injection mechanism comprises a storage box and a communicating pipe, wherein a plurality of storage positions which are mutually separated are arranged in the storage box, one end of the communicating pipe is communicated with the storage box, and the other end of the communicating pipe is used for communicating the adding port;

the change-over switch is arranged between the communicating pipe and the storage box and used for controlling the communicating pipe to be communicated with any storage position.

6. The water heater according to any one of claims 1 to 3,

the material comprises one or the combination of the following materials:

7. The water heater of claim 1, further comprising:

the heat exchange tube is sleeved with a plurality of fins, and the adjacent two fins are arranged at intervals.

8. The water heater of claim 1, further comprising:

the openings at the two ends of the water inlet pipe are respectively communicated with the inlet and the liquid source;

one end of the water inlet branch pipe is opened and communicated with a flow dividing port arranged on the side wall of the water inlet pipe;

the cold water interface of the thermostatic valve is communicated with the opening at the other end of the water inlet branch pipe, and the hot water interface of the thermostatic valve is communicated with the outlet;

and one end opening of the water outlet pipe is communicated with a water spraying port of the thermostatic valve, and the other end opening of the water outlet pipe is used for being connected with a spraying device.