WO2021027234A1

WO2021027234A1 - Waterway control system and phase-change water heater

Info

Publication number: WO2021027234A1
Application number: PCT/CN2019/128693
Authority: WO
Inventors: 曾云
Original assignee: 芜湖美的厨卫电器制造有限公司
Priority date: 2019-08-09
Filing date: 2019-12-26
Publication date: 2021-02-18
Also published as: CN112344565A

Abstract

A waterway control system (100) and a phase-change water heater, the waterway control system (100) comprising: a heat exchanger (10), which comprises a water inlet (11) and a water outlet (12); a water inlet pipe (20), an outlet of the water inlet pipe (20) being respectively connected to the water inlet (11) and water outlet (12) of the heat exchanger (10), a one-way valve (30) and a thermostatic valve (40) being provided in parallel between the water inlet pipe (20) and the water outlet (12) of the heat exchanger (10), and a heater (50) being provided between the water inlet pipe (20) and the water inlet (11) of the heat exchanger (10); a water outlet pipe (60), which is connected to the thermostatic valve (40); and a water pump (70), which is provided between the water inlet (11) of the heat exchanger (10) and the water outlet (12) of the heat exchanger (10), and when in a circulating heating mode, the water inlet (11) and the water outlet (12) of the heat exchanger (10) are communicated by means of a pipeline where the one-way valve (30) is located.

Description

Waterway control system and phase change water heater

Cross references to related applications

This application is filed based on the Chinese patent application with the application number 201910734439.X and the filing date on August 9, 2019, and claims the priority of the above-mentioned Chinese patent application. The entire content of the above-mentioned Chinese patent application is hereby incorporated into this application by reference.

Technical field

The invention relates to the field of water heaters, and more specifically, to a waterway control system and a phase change water heater.

Background technique

Because the phase change water heater waterway control system has many parts and pipelines, it is more complicated, takes up a large space, and is cumbersome to assemble. Therefore, it is particularly important to design the waterway control system reasonably.

Summary of the invention

The present invention aims to solve one of the above technical problems at least to a certain extent.

For this reason, the present invention proposes a waterway control system for a phase change water heater. The waterway control system has a good pipeline layout and is convenient to switch between the circulating heating mode and the water discharge mode.

The present invention also provides a phase change water heater with the above-mentioned waterway control system. The pipeline layout of the phase change water heater is reasonable and the working mode is convenient to switch.

The waterway control system of the phase change water heater according to the first aspect of the embodiment of the present invention includes: the phase change water heater includes at least a heat release mode and a circulating heating mode, and is characterized in that it includes: a heat exchanger, the heat exchanger including A water inlet and a water outlet; a water inlet pipe, the outlet of the water inlet pipe is connected with the water inlet and the water outlet of the heat exchanger, and the water inlet pipe and the water outlet of the heat exchanger are arranged side by side A one-way valve and a thermostatic valve, a heater is provided between the water inlet pipe and the water inlet of the heat exchanger; a water outlet pipe, the water outlet pipe is connected to the thermostatic valve; a water pump, the water pump is arranged on the Between the water inlet of the heat exchanger and the water outlet of the heat exchanger, in the case of the circulating heating mode, the water inlet and the water outlet of the heat exchanger are connected through the pipeline where the one-way valve is located.

According to the waterway control system of the phase change water heater according to the embodiment of the present invention, the outlet of the water inlet pipe is connected to the water inlet and the water outlet of the heat exchanger, and the water inlet pipe is between the water outlet and the water outlet of the heat exchanger. One-way valve and thermostatic valve are arranged side by side, which not only simplifies the pipeline layout of the waterway control system, but also makes it easy to switch between the circulating heating mode and the water discharge mode of the waterway control system.

In addition, the waterway control system of the phase change water heater according to the embodiment of the present invention may also have the following additional technical features:

According to some embodiments of the present invention, the water pump is arranged between the water inlet of the heat exchanger and the outlet of the water inlet pipe.

According to some embodiments of the present invention, the waterway control system includes a first pipeline and a second pipeline arranged opposite to each other, and the first pipeline and the second pipeline communicate with each other through a first communicating pipe and a second communicating pipe. Pipe connection, wherein the one-way valve is located between the inlets of the first communicating pipe and the second communicating pipe, and the thermostatic valve is located between the outlets of the first communicating pipe and the second communicating pipe.

In an alternative embodiment, a first tee pipe and a second tee pipe are respectively provided at both ends of the first pipeline, and the first tee pipe is connected to the water inlet pipe and the first communication pipe , The second three-way pipe is connected with the second communicating pipe and the water outlet of the heat exchanger.

In a further optional embodiment, the second pipeline defines a constant temperature water outlet, a hot water inlet, and a cold water inlet, and the cold water inlet end of the second pipeline is provided with a third three-way pipe. The through pipe is connected with the first communicating pipe and the water inlet of the heat exchanger, the hot water inlet end of the second pipeline is provided with a fourth three-way pipe, and the fourth three-way pipe is connected to the first The two connecting pipes are connected with the water outlet of the heat exchanger.

In an alternative embodiment, the first pipeline and the first three-way pipe are connected in a threaded manner.

In a further optional embodiment, one end of the first pipeline is provided with a nut, the nut is provided with an internal thread, and the first tee tube is provided with an external thread matched with the internal thread.

In an alternative embodiment, the first pipeline is provided in the first limiting structure and the second limiting structure and is movably arranged between the first limiting structure and the second limiting structure For the valve plug, the second limiting structure defines a valve port matched with the valve plug.

In an optional embodiment, the water outlet pipe and the second pipeline are arranged perpendicularly to communicate with the constant temperature water outlet.

In a further optional embodiment, the water outlet joint is integrally formed with the second pipeline and is arranged vertically.

In an alternative embodiment, the first three-way pipe is connected to a water inlet connector, the water inlet connector is connected with the water inlet pipe, and the water inlet connector and the first pipeline are on the same straight line.

In an alternative embodiment, the second three-way pipe is connected to a hot water joint, the hot water joint is connected to the water outlet of the heat exchanger, and the hot water joint and the first pipeline are in the same straight line. on.

The phase change water heater according to the embodiment of the present invention includes the waterway control system of the above-mentioned embodiment, because the waterway control system according to the embodiment of the present invention not only simplifies the pipeline layout of the waterway control system, but also makes the circulating heating mode and water discharge of the waterway control system The mode switching is convenient. Therefore, the pipeline layout of the phase change water heater according to the embodiment of the present invention is reasonable, and the function switching is convenient.

The additional aspects and advantages of the present invention will be partly given in the following description, and part of them will become obvious from the following description, or be understood through the practice of the present invention.

Description of the drawings

The above and/or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

FIG. 1 is a schematic diagram of the connection relationship of a waterway control system according to some embodiments of the present invention, and the arrow in the figure represents the water flow direction in the water release mode;

Figure 2 is a schematic diagram of the connection relationship of the waterway control system according to some embodiments of the present invention, and the arrows in the figure represent the direction of the water flow in the circulating heating mode;

Figure 3 is a partial structural diagram of a waterway control system according to some embodiments of the present invention;

Figure 4 is a cross-sectional view of Figure 3 from an angle, in which the arrow in the figure indicates the flow direction of the water flow in the circulating heating mode;

Figure 5 is a cross-sectional view of Figure 3 from an angle, the arrow in the figure represents the direction of water flow in the water release mode;

Fig. 6 is a cross-sectional view of Fig. 3 from another angle.

Reference signs:

Waterway control system 100;

Heat exchanger 10; water inlet 11; water outlet 12;

Inlet pipe 20;

One-way valve 30;

Thermostatic valve 40;

Heater 50;

Outlet pipe 60;

Water pump 70;

First pipeline 81; first tee pipe 811; second tee pipe 812; nut 813; first limit structure 814; second limit structure 815; valve port 8151; valve plug 816; water inlet joint 817; Hot water connector 818;

Second pipeline 82; constant temperature water outlet 821; cold water inlet 823; third three-way pipe 824; water outlet joint 825; hot water inlet 826; fourth three-way pipe 827; first connecting pipe 83; second connecting pipe 84.

detailed description

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the application, but should not be understood as a limitation to the application.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the application. In addition, this application may repeat reference numbers and/or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and/or settings discussed. In addition, this application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the applicability of other processes and/or the use of other materials.

The phase change water heater according to the embodiment of the present invention includes at least a water discharge mode and a circulating heating mode. In the case of the water discharge mode, the cold water from the water inlet pipe 20 and the hot water from the heat exchanger 10 flow into the thermostatic valve 40 for mixing, and the water inlet pipe 20 The cold water is also simultaneously delivered to the heat exchanger 10 to supplement the water volume. Before the cold water enters the heat exchanger 10, the heater 50 may preheat the cold water or not; in the case of the circulating heating mode, the water inlet pipe 20 The water outlet pipe 60 and the outlet pipe 60 are both closed. Under the pumping pressure of the water pump 70, the water flow circulates between the heat exchanger 10 and the heater 50. Before the cold water enters the heat exchanger 10, the heater 50 must preheat the cold water. , To ensure that the phase change material can adequately store heat. Among them, the heating tube can be a heat pipe, and in addition, the power of the heat pipe can be set to be adjustable, so that in different working modes, the heat pipe can adopt different heating powers for heating.

However, under the premise that the space structure of the phase change water heater is limited, in order to make the pipeline and structure of the waterway control system 100 easy to install while ensuring superior performance, the product development process is not an easy task. The present invention focuses on solving the problem. The waterway control system 100 of the variable water heater has complicated piping, difficult assembly operations, and stable performance.

Referring now to FIGS. 1 to 6, a waterway control system 100 of a phase change water heater according to an embodiment of the present invention is described, including: a heat exchanger 10, a water inlet pipe 20 and a water outlet pipe 60.

Specifically, the heat exchanger 10 includes a water inlet 11 and a water outlet 12. The heat exchanger 10 is embedded in the phase change material of the phase change water heater. When there is a temperature difference between the phase change material and the water in the heat exchanger 10, the phase change material exchanges heat with the heat exchanger 10. That is, when the water temperature in the heat exchanger 10 is lower than the phase change material, the heat of the phase change material will be released to the water in the heat exchanger 10; when the water temperature in the heat exchanger 10 is higher than the phase change material, the phase change The material will absorb the heat of the water in the heat exchanger 10.

As shown in FIG. 1 in combination with FIG. 2, the outlet of the water inlet pipe 20 is connected to the water inlet 11 and the water outlet 12 of the heat exchanger 10 respectively. It should be noted that in this application, "connection" should be understood in a broad sense, and it can mean direct connection or indirect connection. Here, because the water inlet pipe 20 and the water outlet 12 of the heat exchanger 10 are arranged side by side The one-way valve 30 and the thermostatic valve 40, therefore, the water inlet pipe 20 and the water outlet 12 of the heat exchanger 10 are indirectly connected. Also, since a heater 50 is provided between the water inlet pipe 20 and the water inlet 11 of the heat exchanger 10, the water inlet pipe 20 and the water inlet 11 of the heat exchanger 10 are also indirectly connected.

In the waterway control system 100, when the phase change water heater is in the water discharge mode, the water in the water inlet pipe 20 can flow to the thermostatic valve 40 and the heat exchanger 10 at the same time, so that the water outlet pipe 60 discharges water and the water inlet pipe 20 enters. Ensure that the phase change water heater can continuously output water.

The water pump 70 is arranged between the water inlet 11 of the heat exchanger 10 and the water outlet 12 of the heat exchanger 10. In the case of the circulating heating mode, the water pump 70 drives the water flow between the inside and outside of the heat exchanger 10. It can be understood that in the case of the water discharge mode, the water pump 70 may not be activated. At this time, the water pump 70 only serves as a water passage. Thus, the energy consumption of the phase change water heater can be reduced, and the service life of the water pump 70 can be prolonged.

As shown in FIG. 2, in the case of the circulating heating mode, the water inlet 11 and the water outlet 12 of the heat exchanger 10 are connected through the pipeline where the one-way valve 30 is located. In other words, in the case of the water release mode, the one-way valve 30 is subjected to water pressure to disconnect the water inlet 11 and the water outlet 12 of the heat exchanger 10, so as to prevent cold water from entering the heat exchanger 10 from the passage where the one-way valve 30 is located. The normal flow of the waterway of the waterway control system 100.

In short, according to the waterway control system 100 of the phase change water heater according to the embodiment of the present invention, the outlet of the water inlet pipe 20 is connected to the water inlet 11 and the water outlet 12 of the heat exchanger 10, and the water inlet pipe 20 is connected to the outlet of the heat exchanger 10. A one-way valve 30 and a thermostatic valve are arranged in parallel between the nozzles 12, which not only simplifies the pipeline layout of the waterway control system 100, but also makes it easy to switch between the circulating heating mode and the water discharge mode of the waterway control system 100.

In an alternative embodiment, the water pump 70 is provided between the water inlet 11 of the heat exchanger 10 and the outlet of the water inlet pipe 20. That is, the water pump 70 is arranged close to the water inlet pipe 20. In this way, when the phase change water heater is not working (neither the circulating heating mode nor the water discharge mode), the water pump 70 can be filled with cold water. In this way, the water pump 70 can be prevented from being soaked by hot water for a long time. The service life of the water pump 70.

In some embodiments of the present invention, as shown in FIG. 3 in combination with FIG. 4 and FIG. 5, the waterway control system 100 includes a first pipe 81 and a second pipe 82 arranged opposite to each other, the first pipe 81 and the second pipe The pipeline 82 is connected by the first communication pipe 83 and the second communication pipe 84, wherein the one-way valve 30 is located between the inlets of the first communication pipe 83 and the second communication pipe 84, and the thermostatic valve is located between the first communication pipe 83 and the second communication pipe 84. Between the outlets of the two communicating tubes 84. In other words, the first connecting pipe 83 is located on one side of the one-way valve 30 and the thermostatic valve, and the second connecting pipe 84 is located on the other side of the one-way valve 30 and the thermostatic valve. The one-way valve 30, the thermostatic valve, and the first connecting pipe 83 are The pipeline layout of the second connecting pipe 84 and the second connecting pipe 84 form a "mouth" shape. The pipelines of the waterway control system 100 are arranged in a regular and orderly manner, which facilitates the installation of the “mouth”-shaped pipeline as a whole inside the phase change water heater.

It should be noted that in this application, the positioning words such as "up" and "down" are based on the drawings, and the actual installation position is not limited.

In an alternative embodiment, as shown in FIG. 3 in combination with FIGS. 4 and 5, both ends of the first pipeline 81 are provided with a first three-way pipe 811 and a second three-way pipe 812, and the first three-way pipe 811 and The water inlet pipe 20 is connected to the first communicating pipe 83, and the second three-way pipe 812 is connected to the second communicating pipe 84 and the water outlet 12 of the heat exchanger 10. The first three-way pipe 811 and the second three-way pipe 812 realize the multi-directional flow of cold water and hot water, so that the waterway control system can meet the switching of the circulating heating mode and the water discharge mode.

In a further optional example, the second pipeline 82 defines a constant temperature water outlet 821, a hot water inlet 826, and a cold water inlet 823. The cold water inlet 823 of the second pipeline 82 is provided with a third three-way pipe 824. The third three-way pipe 824 is connected to the first connecting pipe 83 and the water inlet 11 of the heat exchanger 10. The hot water of the second pipe 82 A fourth three-way pipe 825 is provided at the inlet 826 end, and the fourth three-way pipe 825 is connected to the second connecting pipe 84 and the water outlet 12 of the heat exchanger 10. By rationally arranging the first pipeline 81 and the second pipeline 82, and with the assistance of the first to fourth three-way pipes 825, the components of the pipeline of the waterway control system 100 are very few, and the pipeline layout is regular and orderly. It occupies a small volume, so that the assembly and disassembly efficiency of the waterway control system 100 can be improved and the production cost can be reduced.

In a further optional example, as shown in FIG. 3 in combination with FIGS. 4 and 5, the constant temperature water outlet 821 of the second pipeline 82 is connected to a water outlet connector 825, and the water outlet connector 825 is connected to the water outlet pipe 60. The water outlet connector 825 is integrally formed with the second pipeline 82 and is arranged vertically. In other words, the second pipeline 82 and the water outlet joint 825 roughly form a T-shaped tube, thereby further making the arrangement of the waterway control system 100 more regular and orderly, and occupying a small volume. In this way, the assembly and disassembly efficiency of the waterway control system 100 can be improved, and the efficiency of assembly and disassembly of the waterway control system 100 can be improved. Cost of production.

In a further alternative example, as shown in FIG. 3 in combination with FIGS. 4 and 5, the first three-way pipe 811 is connected to a water inlet joint 817, the water inlet joint 817 is connected to the water inlet pipe 20, and the water inlet joint 817 is connected to the first pipeline 81 are on the same line. The second three-way pipe 812 defines a hot water inlet 826, the hot water inlet 826 is connected to a hot water connector 818, the hot water connector 818 is connected to the water outlet 12 of the heat exchanger 10, and the hot water connector 818 is connected to the first pipe 81 On the same line. As shown in Figure 3 in combination with Figures 4 and 5, the water inlet connector 817, the first three-way pipe 811, the first pipeline 81, the second three-way pipe 812, and the hot water connector 818 are generally located on the same straight line. , The overall arrangement and installation of the pipeline are more convenient, and the pipeline structure of the waterway control system 100 is simplified.

In other embodiments of the present invention, the first pipeline 81 and the first three-way pipe 811 are connected in a threaded manner. In this way, on the one hand, the assembly efficiency between the first pipeline 81 and the first three-way pipe 811 can be quickly improved, and on the other hand, it is also convenient to install the one-way valve 30 in the first pipeline 81. In addition, the threaded connection is also convenient for pipeline maintenance.

Specifically, as shown in FIGS. 4 and 5, a nut 813 is provided at one end of the pipeline, the nut 813 is provided with an internal thread, and the first tee 811 is provided with an external thread matched with the internal thread. The one-way valve 30 includes a first limiting structure 814 arranged in the first pipeline 81, a second limiting structure 815 arranged in the first three-way pipe 811, and a first limiting structure 814 and The valve plug 816 between the second limiting structure 815, and the second limiting structure 815 defines a valve port 8151 that is matched with the valve plug 816. That is, the movement path of the one-way valve 30 is defined by the first limit structure 814 and the second limit structure 815. In the case of the water release mode, the one-way valve 30 stops against the second limit structure 815 and closes the valve port 8151; Mode, the one-way valve 30 flows away from the second limiting structure 815 toward the first limiting structure 814, thereby opening the valve port 8151.

It should be noted that the waterway of the waterway control system 100 can have multiple shut-off valves, temperature sensors, flow sensors, etc., so as to achieve the need for precise control of waterway flow, pressure, and temperature.

The phase change water heater according to the embodiment of the present invention includes the waterway control system 100 of the above-mentioned embodiment. Because the waterway control system 100 according to the embodiment of the present invention not only simplifies the pipeline layout of the waterway control system 100, but also makes the circulation of the waterway control system 100 It is convenient to switch between the heating mode and the water discharge mode. Therefore, the pipeline layout of the phase change water heater according to the embodiment of the present invention is reasonable and the function switching is convenient.

In the description of the present invention, it needs to be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "inner", "outer" etc. is based on the orientation or positional relationship shown in the drawings, and is only for It is convenient to describe the present invention and simplify the description, instead of indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication between two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless expressly stipulated and defined otherwise, the “on” or “under” of the first feature on the second feature may be in direct contact with the first and second features, or indirectly through an intermediary. contact.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , The structure, materials, or characteristics are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples and the characteristics of the different embodiments or examples described in this specification without contradicting each other.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present application. The scope of the application is defined by the claims and their equivalents.

Claims

A waterway control system for a phase change water heater, the phase change water heater includes at least a heat release mode and a circulating heating mode, and is characterized in that it includes:

A heat exchanger, the heat exchanger comprising a water inlet and a water outlet;

Water inlet pipe, the outlet of the water inlet pipe is respectively connected with the water inlet and the water outlet of the heat exchanger, a check valve and a thermostatic valve are arranged in parallel between the water inlet pipe and the water outlet of the heat exchanger, so A heater is provided between the water inlet pipe and the water inlet of the heat exchanger;

A water outlet pipe, which is connected to the thermostatic valve;

The water pump is arranged between the water inlet of the heat exchanger and the water outlet of the heat exchanger. In the circulating heating mode, the water inlet and the water outlet of the heat exchanger pass through the one-way The pipeline where the valve is connected is connected.
The waterway control system for a phase change water heater according to claim 1, wherein the water pump is arranged between the water inlet of the heat exchanger and the outlet of the water inlet pipe.
The waterway control system of a phase-change water heater according to claim 1, wherein the waterway control system comprises a first pipeline and a second pipeline arranged opposite to each other up and down, the first pipeline and the second pipeline The pipeline is connected by a first communicating pipe and a second communicating pipe, wherein the one-way valve is located between the inlets of the first communicating pipe and the second communicating pipe, and the thermostatic valve is located between the first communicating pipe and Between the outlets of the second communicating pipe.
The waterway control system for a phase change water heater according to claim 3, wherein a first three-way pipe and a second three-way pipe are respectively provided at both ends of the first pipeline, and the first three-way pipe Are respectively connected with the water inlet pipe and the first communication pipe, and the second three-way pipe is connected with the second communication pipe and the water outlet of the heat exchanger.
The waterway control system of a phase change water heater according to claim 4, wherein the second pipeline defines a constant temperature water outlet, a hot water inlet and a cold water inlet, and the cold water inlet end of the second pipeline is provided with A third three-way pipe, the third three-way pipe is connected to the first communication pipe and the water inlet of the heat exchanger, and the hot water inlet end of the second pipeline is provided with a fourth three-way pipe, The fourth three-way pipe is connected with the second communicating pipe and the water outlet of the heat exchanger.
The waterway control system for a phase change water heater according to claim 5, wherein the first pipeline and the first three-way pipe are connected in a threaded manner.
The waterway control system for a phase change water heater according to claim 6, wherein one end of the first pipeline is provided with a nut, the nut is provided with an internal thread, and the first three-way pipe is provided with an internal thread Mating external thread.
The waterway control system for a phase-change water heater according to claim 7, wherein the first pipeline is arranged in the first limiting structure and the second limiting structure and is movably arranged in the first limiting structure. A valve plug between the positioning structure and the second limiting structure, and the second limiting structure defines a valve port matched with the valve plug.
The waterway control system for a phase change water heater according to claim 3, wherein the constant temperature water outlet of the second pipeline is connected to a water outlet connector, and the water outlet connector is connected to the water outlet pipe.
The waterway control system of a phase change water heater according to claim 9, wherein the water outlet joint is integrally formed with the second pipeline and is arranged vertically.
The waterway control system for a phase change water heater according to claim 4, wherein the first three-way pipe is connected with a water inlet joint, the water inlet joint is connected with the water inlet pipe, and the water inlet joint is connected with The first pipelines are on the same straight line.
The waterway control system of a phase change water heater according to claim 4, wherein the second three-way pipe defines a hot water inlet, and the hot water inlet is connected to a hot water joint, and the hot water joint is connected to the hot water inlet. The water outlet of the heat exchanger is connected, and the hot water connector is on the same straight line with the first pipeline.
A phase change water heater, characterized by comprising: the waterway control system according to any one of claims 1-12.