CN220648631U - Water storage type water heater and water supply combined supply system - Google Patents

Abstract

The utility model discloses a water storage type water heater and a water supply combined supply system, wherein the water storage type water heater comprises: the water tank is provided with a heating unit, a water inlet and a water outlet are arranged on the water tank, and the water inlet is used for being connected with an outlet of the first water supply end; the water mixing device comprises a first inlet, a second inlet and a water mixing outlet, wherein the first inlet is used for being connected with an outlet of a second water supply end, and the second inlet is connected with the water outlet; the first water signal detection unit is arranged at the water inlet or in an upstream pipeline of the water inlet or at the water outlet or in a downstream pipeline of the water outlet; and the second water signal detection unit is arranged at the first inlet or in a pipeline upstream of the first inlet. The water storage type water heater provided by the application can accurately acquire the water consumption condition of the current user under all working conditions, and reliably adjusts the constant temperature, so that the water outlet temperature of the water heater is accurately controlled, and constant temperature water outlet is ensured.

Description

Water storage type water heater and water supply combined supply system

Technical Field

The utility model relates to the technical field of water heaters, in particular to a water storage type water heater and a water supply combined supply system.

Background

The existing water heater mainly comprises: gas water heater, solar water heater, air energy heat pump water heater, electric water heater, etc. Wherein the electric water heater is a water heater which uses electricity as energy source to heat. Most electric water heaters adopt water storage type heating, and mainly comprise: the inner container is an anode rod used for preventing the inner container from being corroded, and an electric heating element used for heating water in the inner container and other matched equipment.

At present, the volume of a liner of a common electric water heater is generally not more than 100L under the influence of the size of a toilet of a user and the installation environment. For example, a more common household electric water heater on the market is a 60L capacity electric water heater. However, the capacity of the electric water heater is limited in the capacity of supplying hot water, and particularly in winter, there is a general problem that the hot water is not used enough when a user takes a bath.

In order to solve the problem that the hot water amount of the electric water heater cannot meet the user requirement, one existing mode is to connect the instant water heater (taking a gas water heater as an example) with the electric water heater and use the gas water heater to increase the hot water amount provided by the electric water heater.

When the electric water heater and the gas water heater are used in combination, the tap water inlet end and the gas water heater are respectively connected with the electric heater, hot water is supplied by the electric water heater in the water supply process, and water is supplied by the electric water heater to the gas water heater by switching the main water supply of the electric water heater, so that the water supply object and the working condition of the electric water heater are complex in the water supply process, and the problem that the electric water heater needs to solve at present is solved precisely by accurately acquiring the current water use condition and the current water supply flow of the user.

Disclosure of Invention

Aiming at the defects existing in the prior art, the embodiment of the utility model provides a water storage type water heater and a water supply combined supply system, which can accurately acquire the water use condition of the current user under all working conditions and reliably regulate the constant temperature, thereby accurately controlling the water outlet temperature of the electric water heater and ensuring constant temperature water outlet.

The specific technical scheme of the embodiment of the utility model is as follows:

a storage-type water heater, the storage-type water heater comprising: the water tank is provided with a heating unit, a water inlet and a water outlet are arranged on the water tank, and the water inlet is used for being connected with an outlet of the first water supply end; the water mixing device comprises a first inlet, a second inlet and a water mixing outlet, wherein the first inlet is used for being connected with an outlet of a second water supply end, and the second inlet is connected with the water outlet; the first water signal detection unit is arranged at the water inlet or in an upstream pipeline of the water inlet or at the water outlet or in a downstream pipeline of the water outlet; and the second water signal detection unit is arranged at the first inlet or in a pipeline upstream of the first inlet.

In a preferred embodiment, the first water signal detection unit includes any one or a combination of the following: a flow rate detecting member and a pressure detecting member; the second water use signal detection unit comprises any one or a combination of the following components: flow detection piece, pressure detection piece.

In a preferred embodiment, the storage-type water heater further comprises a controller, and the water mixing device, the first water signal detection unit and the second water signal detection unit are electrically connected with the controller.

In a preferred embodiment, the storage-type water heater further comprises: a first valve is disposed at the water inlet or in the pipeline upstream of the water inlet.

In a preferred embodiment, the first valve comprises any one of the following: check valve, solenoid valve, relief valve.

In a preferred embodiment, the first valve is a one-way valve, and the one-way valve is in one-way conduction from the first water supply end to the water inlet.

In a preferred embodiment, the storage water heater further includes a controller, a first temperature detecting element for detecting a temperature of the water discharged from the water outlet, a second temperature detecting element for detecting a temperature of the water fed from the first inlet, and the first valve is a first solenoid valve, and the first solenoid valve, the first temperature detecting element, and the second temperature detecting element are electrically connected to the controller.

In a preferred embodiment, the storage-type water heater further comprises: a second valve disposed at or in the conduit upstream of the first inlet.

In a preferred embodiment, the second valve comprises any one of the following: check valve, solenoid valve, relief valve.

In a preferred embodiment, the second valve is a one-way valve, which is in one-way communication from the second water supply end to the first inlet direction.

In a preferred embodiment, the water storage type water heater further comprises a controller, a first temperature detecting element for detecting the outlet water temperature at the water outlet, a second temperature detecting element for detecting the inlet water temperature at the first inlet, the second valve is a second electromagnetic valve, the first temperature detecting element and the second temperature detecting element are electrically connected with the controller, and the controller controls the opening and closing of the second electromagnetic valve based on temperature signals of the first temperature detecting element and the second temperature detecting element.

In a preferred embodiment, the second valve is a relief valve having a preset opening pressure, the relief valve being in an open state when the first water supply end supplies water to the water inlet, and in a closed state when the first water supply end supplies water to the other water supply end.

In a preferred embodiment, the storage-type water heater comprises any one of the following: electric water heater, heat pump water heater, solar water heater.

In a preferred embodiment, the first water supply end is an instant water heater, including any one of the following: gas water heater, hanging stove, electric water heater.

In a preferred embodiment, the storage-type water heater includes a housing, the water tank is disposed inside the housing, and the water mixing device is disposed inside or outside the housing.

A water supply combined supply system comprises any one of the water storage type water heater and a first water supply end connected with the water inlet.

In a preferred embodiment, a communication pipeline is arranged between the first water supply end and the water inlet, and the first water signal detection unit is arranged in the communication pipeline.

In a preferred embodiment, the second water supply end is a tap water supply end, a water inlet pipeline is arranged between the second water supply end and the first inlet, and the second water signal detection unit is arranged in the water inlet pipeline.

The technical scheme of the utility model has the following remarkable beneficial effects:

the water storage formula water heater that this application provided is through setting up first water signal detecting element in water inlet or water inlet upstream pipeline to set up second water signal detecting element in first import or first import upstream pipeline, the first water supply end that supplies water to water storage formula water heater side promptly and the second water supply end are provided with water signal detecting element respectively to the water supply flow path between this water storage formula water heater, and when two water signal detecting element cooperation were used, can avoid can not detecting the water signal because of on arbitrary one water supply flow path and not setting up water signal detecting element on another water supply flow path and lead to can't carrying out accurate discernment to current user water state, thereby can't reliably call water mixing device and adjust constant temperature, and then can't provide the problem that reaches the water of preset temperature to the user accurately. In whole, the water storage type water heater that this application provided can all accurately acquire current user's water condition under all operating modes, reliably adjusts constant temperature to the play water temperature of this electric water heater is controlled accurately, guarantees constant temperature play water.

Specific embodiments of the utility model are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not limited in scope thereby. The embodiments of the utility model include many variations, modifications and equivalents within the spirit and scope of the appended claims. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present utility model, and are not particularly limited. Those skilled in the art with access to the teachings of the present utility model can select a variety of possible shapes and scale sizes to practice the present utility model as the case may be.

FIG. 1 is a schematic view of an internal structure of a storage-type water heater according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of an internal structure of another storage-type water heater according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a water supply system including a storage type water heater shown in FIG. 1;

FIG. 4 is a schematic diagram of a water supply system including a water storage type water heater shown in FIG. 2;

fig. 5 is a schematic diagram of a water supply combined supply system according to an embodiment of the present application.

Reference numerals of the present application:

100. a water storage type water heater;

1. a water tank;

11. a water inlet;

12. a water outlet;

2. a water mixing device;

21. a first inlet;

22. a second inlet;

23. a mixed water outlet;

3. a first water signal detection unit;

4. a second water use signal detection unit;

5. a first valve;

6. a second valve;

7. a first water supply end;

70. a communication pipeline;

71. a hot water pipeline;

72. a cold water pipeline.

Detailed Description

The technical solution of the present utility model will be described in detail below with reference to the attached drawings and specific embodiments, it should be understood that these embodiments are only for illustrating the present utility model and not for limiting the scope of the present utility model, and various modifications of equivalent forms of the present utility model will fall within the scope of the appended claims of the present application after reading the present utility model.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the first scenario, for a water storage type water heater (for example, an electric water heater), the initial water temperature after heating by a heating unit is relatively high, for example, the initial water temperature can reach seventy degrees; at this time, the hot water heated in the water tank of the electric water heater is mainly supplied. After a period of continuous use, the temperature in the water tank drops, for example, near the water outlet temperature set by the user (for example, about 40 ℃), at this time, the cold water inlet pipe may not need to supply water or supply little water, and all or most of the water is continuously supplied by the instant water heater (for example, a gas water heater). The set water outlet temperature of the gas water heater is also the water outlet temperature set by a user, for example, about 40 ℃.

Under the above circumstances, if the flowmeter is only arranged on the cold water inlet pipe, the flowmeter cannot judge that the current user is using water at this moment, and cannot acquire the water supply flow of the current gas water heater branch water inlet pipe, and the water mixing device cannot be called to adjust the constant temperature at this moment, so that the water reaching the preset temperature cannot be provided for the user accurately.

In the second scenario, when the temperature in the water tank of the storage type water heater (for example, an electric water heater) is too high, for example, may approach 80 degrees celsius, the flow of hot water required by the instant heating type water heater (for example, a gas water heater) may be small, and the small flow provided by the gas water heater cannot be detected or cannot be accurately detected by using the flow meter.

Under the above circumstances, if the flowmeter is only arranged in the branch water inlet pipe of the gas water heater connected with the electric water heater, the current user cannot be judged to be using water by the flowmeter, the water supply flow of the current cold water inlet pipe cannot be obtained, and at the moment, the water mixing device cannot be called to adjust the constant temperature, and the water reaching the preset temperature cannot be provided for the user accurately.

The utility model provides a water storage type water heater, which can accurately acquire the current water consumption condition of a user and the current water supply flow, reliably regulate constant temperature, accurately control the water outlet temperature of the electric water heater and ensure constant temperature water outlet.

Referring to fig. 1 and 2, in an embodiment of the present application, a storage water heater is provided, where the storage water heater may include: a water tank 1 provided with a heating unit, wherein a water inlet 11 and a water outlet 12 are arranged on the water tank 1, and the water inlet 11 is used for being connected with an outlet of a first water supply end 7; the water mixing device 2 comprises a first inlet 21, a second inlet 22 and a water mixing outlet 23, wherein the first inlet 21 is used for being connected with an outlet of a second water supply end, and the second inlet 22 is connected with the water outlet 12; a first water signal detection unit 3 disposed at the water inlet 11 or in an upstream pipeline of the water inlet 11 or at the water outlet or in a downstream pipeline of the water outlet; a second water usage signal detection unit 4 is arranged at the first inlet 21 or in the pipeline upstream of the first inlet 21.

In the embodiments of the present specification, the storage-type water heater mainly refers to a water heater having a storage hot water tank 1, and may specifically include any one of the following: heat pump water heater, electric water heater, solar water heater, etc. Of course, the specific form of the storage water heater is not limited to the above description, and other modifications may be made by those skilled in the art in light of the technical spirit of the present application, but all the functions and effects implemented by the storage water heater are the same as or similar to those of the present application, and are covered in the protection scope of the present application.

In the embodiments of the present application, the storage type water heater is mainly exemplified by an electric water heater, and other heat storage type water heaters or similar heat storage type water heaters can also refer to the electric water heater, which is not described herein.

The number of the water tanks 1 may be one or two or more, and the overall structure of the water tank 1 may be a hollow cylindrical shell or a flat shape, which may be any other shape, and the present application is not limited specifically herein.

In general, the water tank 1 is further provided with a heating unit for heating water in the water tank 1. In particular, the form of the heating unit may vary depending on the particular water heater form. For example, when the water heater is a heat pump water heater, the heating unit may be a condenser through which a high-temperature and high-pressure refrigerant flows, and heat can be transferred to water in the water tank 1. When the water heater is an electric water heater, the heating member may be an electric heating rod installed in the water tank 1 for heating water in the water tank 1. Of course, the heating element may be a combination of various heating forms, and is not particularly limited herein.

The water tank 1 is provided with a water inlet 11 and a water outlet 12. Wherein the water outlet 12 is used as a hot water outlet. The water inlet 11 is adapted to be connected to the first water supply 7.

Specifically, the first water supply end 7 may be a water supply end capable of supplying hot water to the water tank 1, and may be an instant water heater. When the first water supply end 7 is an instant water heater, it may include any one of the following: gas water heater, hanging stove, electric water heater. Of course, the specific form of the first water supply end 7 is not limited to the above description, and other modifications may be made by those skilled in the art in light of the technical spirit of the present application, and all the functions and effects implemented by the first water supply end are included in the protection scope of the present application as long as they are the same as or similar to the present application.

A water mixing device 2 is provided downstream of the water outlet 12. The water mixing device 2 is used for mixing water flowing out of the water tank 1 and water provided by the second water supply end according to a certain proportion, so as to output water with set temperature to a user. The water mixing device 2 may include a first inlet 21, a second inlet 22, and a water mixing outlet 23, where the first inlet 21 is used to connect with a second water supply end, and the second inlet 22 is connected with the water outlet 12. The mixed water outlet 23 may be connected to a user's water terminal through a pipe.

In one embodiment, the storage-type water heater 100 includes a housing, the water tank 1 is disposed inside the housing, and the water mixing device 2 is disposed inside or outside the housing.

In this embodiment, the storage-type water heater 100 may further include a housing, and as shown in fig. 1, the tank 1 and the water mixing device 2 may be disposed inside the housing. Of course, the mixing device 2 may also be arranged outside the housing, for example in a line downstream of the water outlet 12.

The first water signal detection unit 3 is configured to acquire a water signal representing a current water use state of the user. In particular, the first water signal detection unit 3 may be arranged at the water inlet 11 or in a line upstream of the water inlet 11 or at the water outlet 12 or in a line downstream of the water outlet 12. When a fluctuation in water flow, pressure, etc. is detected at the water inlet 11 or in a pipeline upstream of the water inlet 11, it may be indicated that the current user is in a water use state.

Specifically, the first water signal detecting unit 3 includes any one or a combination of the following: flow detection piece, pressure detection piece. The flow detection part is used for detecting flow signals caused by water consumption of a user, and the pressure detection part is used for detecting pressure signals caused by water consumption of the user.

Of course, the specific form of the first water signal detecting unit 3 may be other manners, and is not limited to the above description, and other modifications may be made by those skilled in the art in light of the technical spirit of the present application, but all the functions and effects implemented by the first water signal detecting unit are the same as or similar to those of the present application, and are covered in the protection scope of the present application.

The second water use signal detection unit 4 is for acquiring a water use signal representing the current water use state of the user. In particular, the second water signal detection unit 4 is arranged at said first inlet 21 or in a line upstream of said first inlet 21. When fluctuations in water flow, pressure, etc. are detected at the first inlet 21 or in the piping upstream of the first inlet 21, it may be indicated that the current user is in a water use state.

Specifically, the second water usage signal detection unit 4 includes any one or a combination of the following: flow detection piece, pressure detection piece. The flow detection part is used for detecting flow signals caused by water consumption of a user, and the pressure detection part is used for detecting pressure signals caused by water consumption of the user.

Of course, the specific form of the second water usage signal detecting unit 4 may be other manners, and is not limited to the above description, and other modifications may be made by those skilled in the art in light of the technical spirit of the present application, but all the functions and effects achieved by the second water usage signal detecting unit are included in the protection scope of the present application as long as they are the same or similar to the present application.

Because the first water signal detection unit 3 is arranged in the water inlet 11 or the pipeline at the upstream of the water inlet 11, and the second water signal detection unit 4 is arranged in the first inlet 21 or the pipeline at the upstream of the first inlet 21, namely, the water supply flow paths between the first water supply end 7 and the second water supply end for supplying water to the water storage type water heater 100 side are respectively provided with the water signal detection units, when the two water signal detection units are matched for use, the problem that the current water state of a user cannot be accurately identified due to the fact that the water signal cannot be detected on any water supply flow path and the water signal detection unit is not arranged on the other water supply flow path can be avoided, and the water mixing device 2 cannot be reliably invoked to adjust and keep constant temperature, and water reaching the preset temperature cannot be accurately provided for the user can be avoided.

Specifically, it is possible to solve: in the second scenario, when the water temperature of the water tank 1 is too high, the water supply flow path where the water inlet 11 of the water storage type water heater is connected to the first water supply end 7 cannot detect the water signal, and the water supply flow path where the first inlet 21 of the water storage type water heater is connected to the second water supply end is not provided with the water signal detection unit, so that the current water state of the user cannot be accurately identified.

The method can also solve the following problems: in the first scenario, when the water temperature of the water tank 1 is reduced to be close to the water outlet temperature set by the user, and the instant water heater (taking the gas water heater as an example) is used as the water supply main force to continuously supply water, no water signal is provided on the water supply flow path connected with the second water supply end, and no water signal detection unit is provided on the water supply flow path connected with the water inlet 11 of the water storage type water heater and the first water supply end 7, so that the current water use state of the user cannot be accurately identified.

In whole, the water storage type water heater that this application provided can all accurately acquire current user's water condition under all operating modes, reliably adjusts constant temperature to the play water temperature of this electric water heater is controlled accurately, guarantees constant temperature play water.

In one embodiment, the storage-type water heater may further include a controller, and the water mixing device 2, the first water signal detecting unit 3, and the second water signal detecting unit 4 are electrically connected to the controller.

In this embodiment, the storage-type water heater may include a controller. Specifically, the controller may be in the form of a control board, and an installation case may be provided outside the water tank 1 of the water storage type water heater, and the controller, the water mixing device 2, etc. may be installed in the installation case. Of course, the specific form and installation location of the controller are not limited to the above examples, and may be adapted according to actual product design, installation environment, etc.

Wherein, the water mixing device 2, the first water signal detecting unit 3 and the second water signal detecting unit 4 are electrically connected with the controller. When any one of the first water signal detecting unit 3 and the second water signal detecting unit 4 detects a water signal of a user, the controller calls the water mixing device 2 to perform constant temperature adjustment.

In a specific embodiment, the first water signal detecting unit 3 and the second water signal detecting unit 4 are both flow rate detecting members.

In the present embodiment, the first water detecting means and the second water detecting means are exemplified as flow rate detecting members. Specifically, the form of the flow detection member includes any one of the following: a flow sensor and a flow switch. Of course, the flow detecting member may be in other forms capable of detecting the flow signal in the current water supply flow path, which is not particularly limited herein.

The first water detecting unit and the second water detecting unit are exemplified as the flow rate detecting member. When the flow in any water supply flow path reaches a certain threshold value or the increment of the flow reaches a certain preset flow difference value, the water supply flow path is in a water supply state currently, and the controller can call the water mixing device 2 to perform constant temperature adjustment. The threshold value or the preset flow difference value may be different according to the detection precision of the specific flow detection member, and the present application is not limited to specific numerical values.

Referring to fig. 1 and 2 in combination, in one embodiment, the storage water heater may further include: a first valve 5, said first valve 5 being arranged at said water inlet 11 or in a line upstream of said water inlet 11.

In the present embodiment, the first valve 5 is provided at the water inlet 11 or in the pipe line upstream of the water inlet 11, which corresponds to the first valve 5 provided in the water supply flow path between the water inlet 11 and the first water supply end 7 of the storage-type water heater.

Referring to fig. 3 and 4, the first water supply end 7 is connected to the storage water heater 100, and is capable of supplying water to the storage water heater 100, and supplying hot water to other water consuming points through a hot water pipe 71. The hot water pipe 71 is communicated with the water inlet 11 of the storage type water heater. In order to prevent water in the storage-type water heater 100 from flowing into the hot water pipe 71 through the water inlet 11 when hot water is used at other water points, the first valve 5 may be provided in a water supply flow path between the water inlet 11 and the first water supply end 7 of the storage-type water heater. That is, the first valve 5 serves to prevent water in the storage-type water heater 100 from participating in water supply when the first water supply end 7 alone supplies hot water to another location.

Specifically, the first valve 5 includes any one of the following: check valve, solenoid valve, relief valve.

When the first valve 5 is a one-way valve, the one-way valve is conducted unidirectionally from the first water supply end 7 to the water inlet 11.

Or when the first valve 5 is a pressure relief valve, the pressure relief valve has a preset opening pressure, when the first water supply end 7 supplies water to the water inlet 11, the pressure relief valve is in an open state, and when the first water supply end 7 supplies water to other water supply ends, the pressure relief valve is in a closed state. Specifically, the relief valve may be provided with an internal relief pressure, the value of which is not specifically limited herein, such as in the illustrated embodiment of the application, for example, 0.3 mpa. When the first water supply end 7 supplies water to the water inlet 11 of the storage type water heater, the pressure of the water supply is more than 0.3 megapascals, and the pressure relief valve can be opened; when the first water supply end 7 supplies water to the other water supply ends, the pressure difference at the two ends of the pressure relief valve is smaller than 0.3 megapascal, the pressure relief valve is in a closed state, and water in the storage type water heater 100 cannot flow back through the pressure relief valve.

In one embodiment, the storage-type water heater 100 may further include a controller, a first temperature detecting member for detecting the temperature of the water discharged from the water outlet 12, and a second temperature detecting member for detecting the temperature of the water introduced from the first inlet 21. The first valve 5 is a first electromagnetic valve, the first temperature detecting piece and the second temperature detecting piece are electrically connected with the controller, and the controller controls the opening and closing of the first electromagnetic valve based on temperature signals of the first temperature detecting piece and the second temperature detecting piece.

In this embodiment, the storage-type water heater 100 may be provided with a controller and a first temperature detecting member for detecting the temperature of the water discharged from the water outlet 12, and a second temperature detecting member for detecting the temperature of the water introduced from the first inlet 21. The first valve 5 may be a first electromagnetic valve, and the first electromagnetic valve, the first temperature detecting member and the second temperature detecting member are all electrically connected with the controller. The first solenoid valve may be a normally open solenoid valve which is in a closed state when the first water supply end 7 supplies water to the other water supply ends.

Specifically, the controller may acquire temperature signals detected by the first temperature detecting member and the second temperature detecting member, and determine in combination with the temperature signals detected by at least one of the first temperature detecting member and the second temperature detecting member, so as to control the state of the first valve 5. When the first water supply end 7 supplies water to the other water supply ends, cold water supplied from the second water supply end flows through the first temperature detecting member, flows to the tank 1 of the storage-type water heater 100, and then flows in the direction of the other water supply ends with low pressure through the water inlet 11. Because the cold water that the second water supply end provided flows through first temperature detection spare for the temperature that this first temperature detection spare detected appears unusual low temperature, can judge this moment that the water inlet 11 department of this water storage formula water heater has had the backward flow, corresponding control this first solenoid valve be in the state of closing can.

In one embodiment, the storage-type water heater 100 may further include: a second valve 6, said second valve 6 being arranged at said first inlet 21 or in a line upstream of said first inlet 21.

In the present embodiment, the provision of the second valve 6 at the first inlet 21 or in the pipe line upstream of the first inlet 21 corresponds to the provision of the second valve 6 in the water supply flow path between the first inlet 21 and the second water supply end of the storage-type water heater 100.

Wherein the second water supply end can be a tap water supply end. The second water supply end is connected to the water storage type water heater 100, and can supply water to the water storage type water heater 100, and cold water is generally supplied to other water using points through the cold water pipe 72. The cold water pipe 72 communicates with the first inlet 21 of the storage water heater. In order to prevent water in the storage-type water heater 100 from flowing into the cold water pipe 72 through the first inlet 21 when cold water is used at other water points, the first valve 5 may be provided in a water supply flow path between the first inlet 21 and the second water supply end of the storage-type water heater 100.

Specifically, the second valve 6 includes any one of the following: check valve, solenoid valve, relief valve.

When the second valve 6 is a one-way valve, the one-way valve is conducted in one way from the second water supply end to the first inlet 21.

Or, in an embodiment, the storage water heater 100 may further include a controller, a first temperature detecting element for detecting a temperature of the water discharged from the water outlet 12, a second temperature detecting element for detecting a temperature of the water fed from the first inlet 21, the second valve 6 is a second electromagnetic valve, the first temperature detecting element and the second temperature detecting element are electrically connected to the controller, and the controller controls the opening and closing of the second electromagnetic valve based on temperature signals of the first temperature detecting element and the second temperature detecting element.

In this embodiment, the storage-type water heater 100 may be provided with a controller and a first temperature detecting member for detecting the temperature of the water discharged from the water outlet 12, and a second temperature detecting member for detecting the temperature of the water introduced from the first inlet 21. The second valve 6 may be a second electromagnetic valve, and the second electromagnetic valve, the first temperature detecting member and the second temperature detecting member are all electrically connected with the controller. The second solenoid valve may be a normally open solenoid valve which is in a closed state when the second water supply end supplies water to the other water supply end.

Specifically, the controller may acquire temperature signals detected by the first temperature detecting member and the second temperature detecting member, and determine by combining the temperature signals detected by at least one of the first temperature detecting member and the second temperature detecting member, so as to control the state of the second valve 6. When the second water supply end supplies water to the other water supply end, the hot water supplied from the first water supply end 7 flows through the second temperature detecting member through the first inlet 21. The abnormal high temperature of the water temperature detected by the second temperature detecting member can judge that the water inlet 11 of the water storage type water heater is in reverse flow at the moment, and the second electromagnetic valve is correspondingly controlled to be in a closed state.

The second valve 6 may be in the form of a relief valve. The specific principle of the pressure release valve can be referred to the specific description of the above embodiments, and the description of the specific principle is omitted herein.

The embodiment of the application further provides a water supply combined supply system, which mainly comprises the water storage type water heater 100 and the first water supply end 7 connected with the water inlet 11 of the water storage type water heater 100, wherein the water supply combined supply system can achieve the technical effect achieved by the embodiment of the water storage type water heater 100 through setting the water storage type water heater 100, and specifically, please refer to the detailed description of the embodiment, and the detailed description of the embodiment is omitted herein.

As shown in fig. 5, in one embodiment, a communication pipe 70 is provided between the first water supply end 7 and the water inlet 11, and the first water signal detecting unit 3 is provided in the communication pipe 70.

In the embodiment of the water supply system, the specific position of the first water signal detection unit 3 may be provided in the communication line 70 between the first water supply end 7 and the water inlet 11. Of course, it is not excluded that the first water detection signal is disposed at another position, and the specific disposed position may be appropriately modified according to the different components, pipeline connection, etc. of the specific water supply system, and is not limited to the above description, and those skilled in the art may make other changes in the light of the technical spirit of the present application, but as long as the implemented functions and effects are the same or similar to those of the present application, all the changes should be covered in the protection scope of the present application.

In one embodiment, the second water supply end is a tap water supply end, a water inlet pipeline is arranged between the second water supply end and the first inlet 21, and the second water signal detection unit 4 is arranged in the water inlet pipeline.

In this embodiment of the water supply system, a specific position of the second water usage signal detection unit 4 may be provided in the water intake pipe. Of course, it is not excluded that the first water detection signal is disposed at another position, and the specific disposed position may be appropriately modified according to the different components, pipeline connection, etc. of the specific water supply system, and is not limited to the above description, and those skilled in the art may make other changes in the light of the technical spirit of the present application, but as long as the implemented functions and effects are the same or similar to those of the present application, all the changes should be covered in the protection scope of the present application.

It should be noted that, in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and to distinguish between similar objects, and there is no order of preference between the two, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

The foregoing embodiments in the present specification are all described in a progressive manner, and the same and similar parts of the embodiments are mutually referred to, and each embodiment is mainly described in a different manner from other embodiments.

The foregoing is merely a few embodiments of the present utility model, and the embodiments disclosed in the present utility model are merely examples which are used for the convenience of understanding the present utility model and are not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail of the embodiments without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is still subject to the scope of the appended claims.

Claims (18)

1. A water storage type water heater, characterized in that the water storage type water heater comprises:

the water tank is provided with a heating unit, a water inlet and a water outlet are arranged on the water tank, and the water inlet is used for being connected with an outlet of the first water supply end;

the water mixing device comprises a first inlet, a second inlet and a water mixing outlet, the first inlet is used for being connected with an outlet of the second water supply end, and the second inlet is connected with the water outlet;

the first water signal detection unit is arranged at the water inlet or in an upstream pipeline of the water inlet or at the water outlet or in a downstream pipeline of the water outlet;

and the second water use signal detection unit is arranged at the first inlet or in a pipeline upstream of the first inlet.

2. The water storage type water heater as claimed in claim 1, wherein the first water signal detecting unit includes any one or a combination of the following: a flow rate detecting member and a pressure detecting member; the second water use signal detection unit comprises any one or a combination of the following components: flow detection piece, pressure detection piece.

3. The water storage type water heater as claimed in claim 1, wherein the water storage type water heater further comprises a controller, and the water mixing device, the first water signal detection unit and the second water signal detection unit are electrically connected with the controller.

4. The storage-type water heater as set forth in claim 1, further comprising: a first valve is disposed at the water inlet or in the pipeline upstream of the water inlet.

5. The storage type water heater as claimed in claim 4, wherein the first valve comprises any one of: check valve, solenoid valve, relief valve.

6. The storage type water heater as claimed in claim 5, wherein the first valve is a check valve, and the check valve is unidirectionally conducted from the first water supply end to the water inlet.

7. The water storage type water heater as claimed in claim 5, wherein the water storage type water heater further comprises a controller, a first temperature detecting member for detecting a temperature of the water discharged from the water outlet, a second temperature detecting member for detecting a temperature of the water introduced from the first inlet,

the first valve is a first electromagnetic valve, the first temperature detection piece and the second temperature detection piece are electrically connected with the controller, and the controller controls the opening and closing of the first electromagnetic valve based on temperature signals of the first temperature detection piece and the second temperature detection piece.

8. The storage-type water heater as claimed in claim 1, wherein the storage-type water heater further comprises: a second valve disposed at or in the conduit upstream of the first inlet.

9. The storage type water heater as claimed in claim 8, wherein the second valve comprises any one of: check valve, solenoid valve, relief valve.

10. The storage type water heater as claimed in claim 9, wherein the second valve is a check valve, and the check valve is unidirectionally communicated from the second water supply end to the first inlet direction.

11. The water storage type water heater as claimed in claim 9, wherein the water storage type water heater further comprises a controller, a first temperature detecting member for detecting a temperature of the water discharged from the water outlet, a second temperature detecting member for detecting a temperature of the water introduced from the first inlet,

the second valve is a second electromagnetic valve, and the second electromagnetic valve, the first temperature detection piece and the second temperature detection piece are electrically connected with the controller.

12. The water heater according to claim 9, wherein the second valve is a relief valve having a preset opening pressure, the relief valve being in an open state when the first water supply end supplies water to the water inlet, and in a closed state when the first water supply end supplies water to the other water supply end.

13. The storage type water heater as claimed in claim 1, wherein the storage type water heater comprises any one of: electric water heater, heat pump water heater, solar water heater.

14. The water storage type water heater as claimed in claim 1, wherein the first water supply end is an instant water heater, comprising any one of the following: gas water heater, hanging stove, electric water heater.

15. The storage-type water heater as claimed in claim 1, wherein the storage-type water heater includes a housing, the water tank is disposed inside the housing, and the water mixing device is disposed inside or outside the housing.

16. A water supply system comprising a storage water heater as claimed in any one of claims 1 to 14 and a first water supply connected to the water inlet.

17. The water supply system of claim 16, wherein a communication line is provided between the first water supply end and the water inlet, the first water signal detection unit being disposed in the communication line.

18. The water supply system of claim 16, wherein the second water supply is a tap water supply,

and a water inlet pipeline is arranged between the second water supply end and the first inlet, and the second water signal detection unit is arranged in the water inlet pipeline.