CN222086296U - Water inlet and outlet assembly and water heater - Google Patents

Abstract

The utility model discloses a water inlet and outlet assembly and a water heater. The water inlet and outlet assembly comprises a water inlet pipeline, a water outlet pipeline, a water return pipeline, a power pump, a water storage container and a control valve assembly, wherein the water return pipeline is connected between the water inlet pipeline and the water outlet pipeline, the power pump and the water storage container are both arranged on the water inlet pipeline and are positioned between the connection part of the water return pipeline and the water inlet pipeline and the water outlet end of the water inlet pipeline, the control valve assembly is arranged on the water return pipeline or on the water return pipeline and the water inlet pipeline, and the control valve assembly is used for controlling the water return pipeline to be communicated or disconnected. The water inlet and outlet assembly provided by the utility model can reduce the water temperature fluctuation range during secondary boiled water, and greatly improve the use experience of users.

Description

Water inlet and outlet assembly and water heater

Technical Field

The utility model relates to the field of household appliances, in particular to a water inlet and outlet assembly and a water heater.

Background

At present, the water heater is a household appliance commonly used in daily life of people. Conventional gas water heaters typically include a burner that combusts gas within a combustion chamber to heat water flowing through a heat exchanger, a combustion chamber, and a heat exchanger.

In the using process, when a user turns off water briefly and restarts, a certain amount of hot water stored in the heat exchanger is heated by waste heat and then is higher than the target temperature, and before cleaning and ignition delay are needed when the water heater restarts, part of cold water enters the heat exchanger and is not fully heated and is output in the process, so that the fluctuation range of the temperature of water outlet is overlarge.

Disclosure of utility model

The first aim of the utility model is to provide a water inlet and outlet assembly, which aims to solve the technical problem that the fluctuation range of water temperature is too large in secondary boiled water.

In order to achieve the aim, the utility model provides a water inlet and outlet assembly which comprises a water inlet pipeline, a water outlet pipeline, a water return pipeline, a power pump, a water storage container and a control valve assembly;

The power pump and the water storage container are both arranged on the water inlet pipeline and are positioned between the connecting part of the water return pipeline and the water inlet pipeline and the water outlet end of the water inlet pipeline;

the control valve assembly is arranged on the water return pipeline or the water return pipeline and the water inlet pipeline, and is used for controlling the water return pipeline to be communicated with or disconnected from the water inlet pipeline.

As one implementation mode, the water inlet pipeline comprises a first water inlet section and a second water inlet section which are sequentially arranged along the water flow direction;

The water return pipeline is connected to the connecting part of the first water inlet section and the second water inlet section, and the power pump and the water storage container are both arranged on the second water inlet section.

As one embodiment, the control valve assembly is arranged on the water return pipeline and the water inlet pipeline;

The control valve assembly comprises an electric three-way valve, and the electric three-way valve is connected among the first water inlet section, the second water inlet section and the water return pipeline and used for controlling the second water inlet section to be selectively communicated with the first water inlet section or the water return pipeline.

As one embodiment, the control valve assembly is arranged on the water return pipeline and the water inlet pipeline;

The control valve assembly comprises a first on-off valve and a second on-off valve, wherein the first on-off valve is arranged on the water return pipeline and used for controlling the on-off of the water return pipeline, and the second on-off valve is arranged on the first water inlet section and used for controlling the on-off of the first water inlet section.

As one embodiment, the control valve assembly is arranged on the water return pipeline;

The control valve assembly comprises a first one-way valve, and the first one-way valve is arranged on the water return pipeline and used for controlling the on-off of the water return pipeline.

As one embodiment, the water storage container is provided between the power pump and the control valve assembly.

As one embodiment, the power pump is disposed between the water reservoir and the control valve assembly.

As an implementation mode, the water inlet end of the water inlet pipeline is used for communicating a water source and a zero cold water pipeline.

As one embodiment, the water inlet and outlet assembly further comprises a return line;

the return pipeline is connected to the water inlet pipeline and between the connection part of the return pipeline and the water inlet end of the water inlet pipeline, the return pipeline is used for communicating a zero-cooling water pipeline, and the water inlet end of the water inlet pipeline is used for communicating a water source.

A second object of the present utility model is to provide a water heater, comprising a heat exchanger and the water inlet and outlet assembly described above;

The inlet of the heat exchanger is connected with the water outlet end of the water inlet pipeline, and the outlet of the heat exchanger is connected with the water inlet end of the water outlet pipeline.

According to the water inlet and outlet assembly and the water heater, the water return pipeline is arranged between the water inlet pipeline and the water outlet pipeline, and when the water terminal is closed briefly and the power pump is started, the water inlet pipeline, the water outlet pipeline and the water return pipeline can form an internal circulation pipeline. By providing a power pump, the flow of water in the internal circulation line is achieved. When the water terminal is opened, the disconnection of the water return pipeline and the water inlet pipeline can be controlled, the internal circulation pipeline is disconnected, and hot water flows to the water terminal through the water outlet pipeline. Through setting up the water storage container on the inlet tube, when rivers flow in inside circulation pipeline, cold water in the water storage container can flow to heat exchanger and heat, and hot water in the outlet tube can flow back in the water storage container through the return water pipeline, then the water that stores in the water storage container is hot water, like this, in the short time shut off water restart, clean before going on and delay ignition in-process, hot water in the water storage container can be discharged, for the user to use, thereby the range of temperature fluctuation when reducing the secondary boiled water.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a water heater according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an assembly structure of a water heater and a water terminal according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a water heater according to a second embodiment of the present utility model;

FIG. 4 is a schematic diagram of an assembly structure of a water heater and a water terminal according to a second embodiment of the present utility model;

FIG. 5 is a schematic view of a water heater according to a third embodiment of the present utility model;

Fig. 6 is a schematic structural diagram of a water heater according to a fourth embodiment of the present utility model.

Reference numerals illustrate:

100. The water inlet and outlet assembly comprises a water inlet and outlet assembly body 10, a water inlet pipeline 11, a first water inlet section 12, a second water inlet section 20, a water outlet pipeline 30, a water return pipeline 40, a power pump 50, a water storage container 60, a control valve assembly body 61, an electric three-way valve 62, a first on-off valve 63, a second on-off valve 64, a first one-way valve 70, a cold water pipeline 80, a return pipeline 90, a second one-way valve 200, a heat exchanger 300, a burner 400, a combustion chamber 500, a fume collecting hood 600, a water source 700 and a water use terminal.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear) in the embodiments of the present utility model are merely used to explain the relative positional relationship between the components, the movement condition, and the like in a certain specific posture, and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "mounted" or "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.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model. Wherein the dashed arrows in the figures indicate the water flow direction.

Embodiment one:

As shown in fig. 1, the water heater provided by the embodiment of the utility model comprises a water inlet and outlet assembly 100 and a heat exchanger 200, wherein the water inlet and outlet assembly 100 is connected with the heat exchanger 200, and can convey water flow to the heat exchanger 200 and receive water flow from the heat exchanger 200.

Referring to fig. 1, the water heater further includes a burner 300 and a combustion chamber 400, and the burner 300 combusts fuel gas in the combustion chamber 400 to heat water flowing through the heat exchanger 200. Typically, the burner 300 is disposed below the heat exchanger 200. The water heater further includes a fume collecting hood 500, and the fume collecting hood 500 serves to collect fumes generated from the burner 300 during combustion of fuel gas. Typically, the fume collection hood 500 is disposed above the heat exchanger 200. Wherein, the upper and lower parts refer to the upper and lower directions of the heat exchanger 200 after the water heater is installed and fixed.

As shown in fig. 1, the water inlet and outlet assembly 100 includes a water inlet pipeline 10 and a water outlet pipeline 20, an inlet of the heat exchanger 200 is connected to a water outlet end of the water inlet pipeline 10, an outlet of the heat exchanger 200 is connected to a water inlet end of the water outlet pipeline 20, the water inlet end of the water inlet pipeline 10 is used for communicating with a water source 600, and the water outlet end of the water outlet pipeline 20 is used for communicating with a water terminal 700. In this way, cold water from the water source 600 can flow into the heat exchanger 200 through the water inlet line 10, be heated to hot water by the heat exchanger 200, and then flow to the water terminal 700 through the water outlet line 20. Among them, the water-using terminal 700 includes, but is not limited to, a shower head and a faucet.

Referring to fig. 1, the water inlet and outlet assembly 100 further includes a water return pipeline 30, a power pump 40, a water storage container 50 and a control valve assembly 60, wherein the water return pipeline 30 is connected between the water inlet pipeline 10 and the water outlet pipeline 20, the power pump 40 and the water storage container 50 are both arranged on the water inlet pipeline 10 and positioned between the connection part of the water return pipeline 30 and the water inlet pipeline 10 and the water outlet end of the water inlet pipeline 10, namely, the power pump 40 and the water storage container 50 are arranged between the connection part of the water return pipeline 30 and the water inlet pipeline 10 and the heat exchanger 200, the control valve assembly 60 is arranged on the water return pipeline 30 and the water inlet pipeline 10, and the control valve assembly 60 is used for controlling the water return pipeline 30 to be connected or disconnected with the water inlet pipeline 10. Wherein the water return line 30 communicates with the water inlet line 10 via a three-way member (not shown).

When the user turns on the water terminal 700, water flows from the water inlet pipeline 10 to the heat exchanger 200 for heating and then flows from the water outlet pipeline 20 to the water terminal 700, wherein the water in the water inlet pipeline 10 flows through the power pump 40 and the water storage container 50 in the flowing process, when the user turns off the water terminal 700 briefly, the power pump 40 is started, the water flows from the water inlet pipeline 10 to the heat exchanger 200 for heating and then flows back to the water inlet pipeline 10 through the water outlet pipeline 20 and the water return pipeline 30, and the water in the water inlet pipeline 10 flows through the power pump 40 and the water storage container 50 in the flowing process.

By adopting the above technical scheme, by arranging the water return pipeline 30 between the water inlet pipeline 10 and the water outlet pipeline 20, when the water terminal 700 is turned off briefly and the power pump 40 is started, the water inlet pipeline 10, the water outlet pipeline 20 and the water return pipeline 30 can form an internal circulation pipeline. By providing the power pump 40, the flow of water in the internal circulation line is achieved. By providing the control valve assembly 60, when the water use terminal 700 is briefly closed, the water return pipeline 30 can be controlled to be communicated with the water inlet pipeline 10, so that water flow can flow in the internal circulation pipeline, when the water use terminal 700 is opened, the water return pipeline 30 can be controlled to be disconnected from the water inlet pipeline 10, the internal circulation pipeline is disconnected, and hot water flows to the water use terminal 700 through the water outlet pipeline 20. By arranging the water storage container 50 on the water inlet pipeline 10, when water flows in the internal circulation pipeline, cold water in the water storage container 50 can flow to the heat exchanger 200 for heating, hot water in the water outlet pipeline 20 can flow back to the water storage container 50 through the water return pipeline 30, so that the water stored in the water storage container 50 is hot water, and in the process of temporarily shutting off water and restarting, cleaning before proceeding and delaying ignition, the hot water in the water storage container 50 can be discharged for users to use, thereby reducing the amplitude of water temperature fluctuation during secondary boiled water.

Therefore, the water inlet and outlet assembly 100 provided by the embodiment of the utility model can reduce the water temperature fluctuation range during secondary boiled water, and greatly improves the use experience of users.

As one embodiment, the water storage container 50 includes a water tank or pitcher.

As an embodiment, referring to fig. 1, the water inlet pipe 10 includes a first water inlet section 11 and a second water inlet section 12 sequentially arranged along the water flow direction, the water return pipe 30 is connected to the connection part of the first water inlet section 11 and the second water inlet section 12, and the power pump 40 and the water storage container 50 are both arranged on the second water inlet section 12. Of course, in a specific application, as an alternative embodiment, it is also possible that the water return line 30 is connected to the water inlet end of the water inlet line 10.

As an embodiment, referring to fig. 1, the control valve assembly 60 includes an electric three-way valve 61, and the electric three-way valve 61 is connected between the first water inlet section 11, the second water inlet section 12 and the water return line 30 for controlling the second water inlet section 12 to selectively communicate with the first water inlet section 11 or the water return line 30.

The electric three-way valve 61 comprises a first water inlet port, a second water inlet port and a water outlet port, the first water inlet section 11 is connected to the first water inlet port, the water return pipeline 30 is connected to the second water inlet port, and the second water inlet section 12 is connected to the water outlet port. When the water terminal 700 is turned off briefly, the first water inlet port is turned off, the second water inlet port and the water outlet port are turned on, the water return pipeline 30 is communicated with the second water inlet section 12, and the internal circulation pipeline is communicated, when the water terminal 700 is turned on, the second water inlet port is turned off, the first water inlet port and the water outlet port are turned on, the water return pipeline 30 is disconnected from the second water inlet section 12, and the internal circulation pipeline is disconnected.

As one embodiment, the water reservoir 50 is disposed between the power pump 40 and the control valve assembly 60. That is, the water reservoir 50 is provided between the power pump 40 and the electric three-way valve 61. It will be appreciated that in other embodiments, the power pump 40 may be disposed between the water reservoir 50 and the control valve assembly 60.

As an embodiment, the water inlet end of the water inlet pipeline 10 is used for communicating the water source 600 with the zero cold water pipeline. The power pump 40 may also power the flow of water in the zero cold water line when zero cold water is activated.

As an embodiment, referring to fig. 2, the water inlet and outlet assembly 100 further includes a cold water pipe 70 and a return pipe 80, wherein one end of the cold water pipe 70 is used for communicating with the water source 600, the other end is used for communicating with the water terminal 700, the water inlet end of the water inlet pipe 10 is communicated with the cold water pipe 70, and the return pipe 80 is connected between the water outlet pipe 20 and the cold water pipe 70. The water outlet line 20, the return line 80, the cold water line 70 and the water inlet line 10 form an external circulation line, i.e., a zero cold water line, and the heat exchanger 200 heats the water flowing in the external circulation line, thereby achieving zero cold water.

As an embodiment, referring to fig. 2, the water inlet and outlet assembly 100 further includes a second check valve 90, where the second check valve 90 is disposed on the return pipe 80, and is used for controlling the on/off of the return pipe 80.

Embodiment two:

The difference between the water inlet and outlet assembly 100 and the water heater provided in this embodiment and the first embodiment is mainly that the structure of the zero cold water pipeline is different, specifically, in the first embodiment, the water outlet pipeline 20, the return pipeline 80, the cold water pipeline 70 and the water inlet pipeline 10 form the zero cold water pipeline, whereas in this embodiment, the water outlet pipeline 20, the return pipeline 80 and the water inlet pipeline 10 form the zero cold water pipeline.

Referring to fig. 3 and 4, the water inlet and outlet assembly 100 further includes a cold water pipe 70 and a return pipe 80, wherein the return pipe 80 is connected to the water inlet pipe 10 and between the connection portion of the return pipe 30 and the water inlet pipe 10 and the water inlet end of the water inlet pipe 10, the return pipe 80 is used for communicating with the cold water pipe, and the water inlet end of the water inlet pipe 10 is used for communicating with the water source 600.

Fig. 4 shows a schematic diagram of an assembly structure of the water heater and the water terminal 700 according to the present embodiment, where the return line 80 is connected between the water outlet line 20 and the water inlet line 10, and the water outlet line 20, the return line 80 and the water inlet line 10 form an external circulation line, i.e. a zero cold water line.

In addition to the above-mentioned differences, the water inlet and outlet assembly 100 and other parts of the water heater provided in this embodiment can be disposed correspondingly with reference to the embodiment, and will not be described in detail herein.

Embodiment III:

The difference between the water inlet and outlet assembly 100 and the water heater provided in this embodiment and the first and second embodiments is mainly that the structure of the control valve assembly 60 is different, specifically, in the first and second embodiments, the control valve assembly 60 includes an electric three-way valve 61, and in this embodiment, the control valve assembly 60 includes a first on-off valve 62 and a second on-off valve 63.

As an embodiment, referring to fig. 1 and 5, a first on-off valve 62 is provided on the water return line 30 for controlling the on-off of the water return line 30, and a second on-off valve 63 is provided on the first water inlet section 11 for controlling the on-off of the first water inlet section 11. When the water use terminal 700 is briefly closed, the first on-off valve 62 is opened, the second on-off valve 63 is closed so that the water return pipeline 30 is communicated with the second water inlet section 12, and the internal circulation pipeline is communicated, and when the water use terminal 700 is opened, the first on-off valve 62 is closed, and the second on-off valve 63 is opened so that the water return pipeline 30 is disconnected from the second water inlet section 12, and the internal circulation pipeline is disconnected. Wherein, the water return pipeline 30 is communicated with the water inlet pipeline 10 through a tee joint.

In addition to the above-mentioned differences, the water inlet and outlet assembly 100 and other parts of the water heater provided in this embodiment can be referred to in the first and second embodiments, and will not be described in detail herein.

Embodiment four:

The difference between the water inlet and outlet assembly 100 and the water heater provided in this embodiment and the first to third embodiments is mainly that the arrangement position of the control valve assembly 60 is different, specifically, in the first to third embodiments, the control valve assembly 60 is disposed on the water return pipeline 30 and the water inlet pipeline 10, and in this embodiment, the control valve assembly 60 is disposed on the water return pipeline 30.

As an embodiment, referring to fig. 1 and 6, the control valve assembly 60 includes a first check valve 64, and the first check valve 64 is disposed on the water return line 30 for controlling the on/off of the water return line 30. When the water use terminal 700 is turned off briefly, the water pressure of the first check valve 64 on the side close to the water outlet pipe 20 is greater than the water pressure of the first check valve 64 on the side close to the water inlet pipe 10, the first check valve 64 is opened, the water return pipe 30 is communicated with the second water inlet section 12 so that the internal circulation pipe is communicated, and when the water use terminal 700 is turned on, the water pressure of the first check valve 64 on the side close to the water outlet pipe 20 is smaller than the water pressure of the first check valve 64 on the side close to the water inlet pipe 10, the first check valve 64 is turned off, and the water return pipe 30 is disconnected from the second water inlet section 12 so that the internal circulation pipe is disconnected. Wherein, the water return pipeline 30 is communicated with the water inlet pipeline 10 through a tee joint. It should be noted that, with this solution, the water inlet and outlet assembly 100 does not have a zero cold water pipeline.

In addition to the above-mentioned differences, the water inlet and outlet assembly 100 and other parts of the water heater provided in this embodiment can be correspondingly arranged with reference to the first to third embodiments, and will not be described in detail herein.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. The water inlet and outlet assembly is characterized by comprising a water inlet pipeline, a water outlet pipeline, a water return pipeline, a power pump, a water storage container and a control valve assembly;

The power pump and the water storage container are both arranged on the water inlet pipeline and are positioned between the connecting part of the water return pipeline and the water inlet pipeline and the water outlet end of the water inlet pipeline;

the control valve assembly is arranged on the water return pipeline or the water return pipeline and the water inlet pipeline, and is used for controlling the water return pipeline to be communicated with or disconnected from the water inlet pipeline.

2. The water inlet and outlet assembly of claim 1, wherein the water inlet line comprises a first water inlet section and a second water inlet section arranged in sequence along the direction of water flow;

The water return pipeline is connected to the connecting part of the first water inlet section and the second water inlet section, and the power pump and the water storage container are both arranged on the second water inlet section.

3. The water inlet and outlet assembly of claim 2, wherein said control valve assembly is disposed on said water return line and said water inlet line;

The control valve assembly comprises an electric three-way valve, and the electric three-way valve is connected among the first water inlet section, the second water inlet section and the water return pipeline and used for controlling the second water inlet section to be selectively communicated with the first water inlet section or the water return pipeline.

4. The water inlet and outlet assembly of claim 2, wherein said control valve assembly is disposed on said water return line and said water inlet line;

The control valve assembly comprises a first on-off valve and a second on-off valve, wherein the first on-off valve is arranged on the water return pipeline and used for controlling the on-off of the water return pipeline, and the second on-off valve is arranged on the first water inlet section and used for controlling the on-off of the first water inlet section.

5. The water inlet and outlet assembly of claim 2, wherein the control valve assembly is disposed on the water return line;

The control valve assembly comprises a first one-way valve, and the first one-way valve is arranged on the water return pipeline and used for controlling the on-off of the water return pipeline.

6. The water intake and outtake assembly of any one of claims 1-5, wherein the water reservoir is disposed between the power pump and the control valve assembly.

7. The water intake and outtake assembly of any one of claims 1-5, wherein the power pump is disposed between the water storage container and the control valve assembly.

8. The water inlet and outlet assembly of any one of claims 1 to 4, wherein the water inlet end of the water inlet line is adapted to communicate a source of water with a zero cold water line.

9. The water inlet and outlet assembly of any one of claims 1 to 4, further comprising a return line;

the return pipeline is connected to the water inlet pipeline and between the connection part of the return pipeline and the water inlet end of the water inlet pipeline, the return pipeline is used for communicating a zero-cooling water pipeline, and the water inlet end of the water inlet pipeline is used for communicating a water source.

10. A water heater comprising a heat exchanger and a water inlet and outlet assembly as claimed in any one of claims 1 to 9;

The inlet of the heat exchanger is connected with the water outlet end of the water inlet pipeline, and the outlet of the heat exchanger is connected with the water inlet end of the water outlet pipeline.