WO2021180137A1

WO2021180137A1 - Wall-mounted boiler water heating system

Info

Publication number: WO2021180137A1
Application number: PCT/CN2021/080044
Authority: WO
Inventors: 孙冰冰; 罗娟; 袁永; 田建均
Original assignee: 芜湖美的厨卫电器制造有限公司; 美的集团股份有限公司
Priority date: 2020-03-10
Filing date: 2021-03-10
Publication date: 2021-09-16
Also published as: CN212006196U

Abstract

Provided is a wall-mounted boiler water heating system. The wall-mounted boiler water heating system comprises a wall-mounted boiler (5), a first water source and a second water source. A water supply switching unit is provided at a water inlet end of the wall-mounted boiler (5) to control water fed to the wall-mounted boiler (5). The water supply switching unit is connected between the first water source and the second water source, such that the water supplied to the wall-mounted boiler (5) from the water inlet end of the wall-mounted boiler (5) is water having the highest temperature from the first water source or the second water source. In the present invention, a water supply switching unit is used to cause water having the highest temperature from one of of a first water source or a second water source to enter a wall-mounted boiler from a water inlet end of the wall-mounted boiler, thereby reducing energy consumption of the wall-mounted boiler, and achieving the purpose of energy saving.

Description

Wall-hung boiler hot water system

Cross-references to related applications

This application claims the rights and interests of the Chinese patent application 202020292169.X filed on March 10, 2020, the content of which is incorporated herein by reference.

Technical field

The invention relates to a water supply facility, in particular to a wall-hung boiler hot water system.

Background technique

Solar energy can be converted into heat energy to heat water from low temperature to high temperature to meet people's hot water use in life and production. However, solar energy is greatly affected by weather conditions, resulting in unsustainable energy supply. In addition, solar water cannot be used when the solar irradiance season does not reach the temperature of domestic hot water. In northern my country, the heating load in winter is relatively large. At this stage, gas is used for heating. However, the direct use of gas as heating energy requires a large amount and high cost. Even if the user can afford it, it will cause a heavy burden on the supply of natural gas. , At the same time it will cause serious pollution to the atmosphere.

In order to solve the above problems, some prior art discloses a wall-hung boiler and solar energy integration system. The system includes a wall-hung boiler, a hot water storage tank and a solar heat collector. The domestic water interface end of the wall-hung boiler and the solar heat collection device pass The two water inlet and outlet pipes are connected to the hot water storage tank, and the heating interface end of the wall-hung boiler is connected with the external domestic heating pipe through the heating pipe; The hot water outlet, the hot water outlet is connected with a hot water pipe, the hot water pipe is provided with a domestic hot water constant temperature component that is convenient for adjusting the water temperature. The hot water storage tank is connected. The system is reasonable in design and convenient to use. The integration of solar energy and wall-hung boilers not only achieves energy optimization and complementary advantages, but also reduces external space occupation, which is convenient for home installation and use. But in relatively cold winters, especially in rain and snow, the water in the hot water storage tank of solar water heaters is lower than the tap water temperature, that is, compared to directly heating the tap water, more heat is required to store heat. The water in the water tank is heated, causing gas waste. In addition, when the temperature is very low, the water in the hot water storage tank is likely to be frozen and unable to supply water, resulting in the inability to use hot water normally. Therefore, a more energy-efficient integrated hot water system is needed.

Summary of the invention

The technical problem to be solved by the present invention is to provide a wall-hung boiler hot water system, which can select higher temperature water to enter the wall-hung boiler, thereby achieving the purpose of energy saving.

In order to solve the above technical problems, the present invention provides a wall-hung boiler hot water system. The wall-hung boiler hot water system includes a wall-hung boiler, a first water source and a second water source, and the wall-hung boiler has a water inlet for controlling the The water inlet switching unit of the wall-hung boiler is connected between the first water source and the second water source so that the water entering the wall-hung boiler from the water inlet of the wall-hung boiler is the first High temperature water in the water source and the second water source.

Optionally, the water inlet switching unit includes a controller, valves located in each pipeline, and temperature sensors located in the first water source and the second water source, and each of the valves and the temperature sensors are connected to each other. The controller is connected.

Optionally, a first water source outlet valve is provided between the water outlet end of the first water source and the water inlet end of the wall-hung boiler, and between the water outlet end of the second water source and the water inlet end of the wall-hung boiler Equipped with a second water source outlet valve.

Optionally, the water outlet end of the first water source and the water outlet end of the second water source are connected to the water inlet end of the wall-hung boiler through a three-way valve.

Optionally, the valve is a solenoid valve.

Optionally, the controller is located inside or outside the wall-hung boiler.

Optionally, a water flow sensor is provided at the water inlet of the wall-hung boiler.

Optionally, the first water source is a solar water heater, and the second water source is cold water.

Optionally, a solar water replenishment valve is provided on the solar water replenishment pipeline of the solar water heater.

Through the above technical solutions, the present invention achieves the following beneficial effects:

1. In the present invention, the water entering the wall-hung boiler from the water inlet end of the wall-hung boiler is the high-temperature water in the first water source and the second water source through the water inlet switching unit, so as to reduce the energy consumption of the wall-hung boiler and achieve the purpose of energy saving;

2. The hot water system of the present invention does not substantially change the main pipeline of the wall-hung boiler, only that a water inlet switching unit is connected between the wall-hung boiler and the water source, and the function of the water terminal to output hot water in real time basically borrows the original function. The pipeline is realized without the need to lay an independent water pipeline, which ensures the simplicity and reliability of the pipeline structure of the hot water system;

3. In the preferred solution of the present invention, each valve, temperature sensor, etc. are automatically controlled by the controller, which has a high degree of automation and is convenient for users to use.

Description of the drawings

FIG. 1 is a schematic diagram of the structure of the first embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a third embodiment of the present invention;

Description of Reference Signs

1 Solar water heater 11 Water storage tank

12 Temperature sensor 13 First water source outlet valve

14 Solar hot water pipeline 15 Solar water replenishment pipeline

2 Cold water pipeline 21 Solar water replenishment valve

22 Second water source outlet valve 3 Controller

4 Three-way valve 5 Wall-hung boiler

6 Cold water supply manager 7 Water tap

The arrow in the figure is the direction of water flow.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; It is a direct connection or an indirect connection through an intermediary, and it can be a connection between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood according to specific situations.

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 technical features indicated. Therefore, the terms "first" and "second" are limited to The "second" feature may explicitly or implicitly include one or more of the features.

1 to 3, the wall-hung boiler hot water system of the present invention includes a wall-hung boiler 5, a first water source and a second water source. The water inlet switching unit is connected between the first water source and the second water source so that the water entering the wall-hung boiler 5 from the water inlet end of the wall-hung boiler 5 is the first water source and the water High temperature water in the second water source. There may be one or more wall-hung boilers 5, and when there are multiple wall-hung boilers 5, the multiple wall-hung boilers 5 are respectively connected in series with the first water source, that is, the water inlet ends of the multiple wall-hung boilers are respectively connected to the water outlet end of the first water source. The first water source can be a solar water heater or other water heaters, and the second water source can be tap water or other cold water.

Fig. 1 is a first embodiment of the present invention. The wall-hung boiler hot water system includes a solar water heater 1 and a wall-hung boiler 5 connected in series therewith. The water outlet of the solar water heater 1 is connected to a solar hot water pipe 14 The water inlet end of the wall-hung boiler 5 enables the water in the water storage tank 11 of the solar water heater 1 to enter the wall-hung boiler 5.

The water inlet end of the solar water heater 1 and the water inlet end of the wall-hung boiler 5 are respectively connected to the cold water pipeline 2, and the solar water heater 1 and the wall-hung boiler 5 can respectively enter water through the cold water pipeline 2; The pipeline 2 is connected to the water inlet end of the solar water heater 1 through the solar water supply pipeline 15, as shown in Figure 1, because the water inlet and outlet of the solar water heater 1 are generally not synchronized, so the solar water supply pipeline 15 can be connected to the solar water heater. The 14 parts of the hot water pipeline overlap to achieve the purpose of saving material costs;

The water inlet end of the wall-hung boiler 5 is provided with a water inlet switching unit, and the water inlet switching unit is used to control the water inlet of the wall-hung boiler 5 so that the water enters the wall-hung boiler 5 from the water inlet end of the wall-hung boiler 5 The water in the furnace 5 is the water in the solar water heater 1 and the water with a higher temperature in the cold water.

Specifically, the water inlet switching unit includes a controller 3, a temperature sensor 12 located in a water storage tank 11 of the solar water heater 1, and a water outlet of the solar water heater 1 and a water inlet of the wall-hung boiler 5. The first water source outlet valve 13 on the pipeline between, the solar water replenishment valve 21 provided on the cold water pipeline 2 of the solar water heater 1, and the second water source outlet provided on the cold water pipeline 2 of the wall-hung boiler 5 Valve 22. The first water source outlet valve 13, the solar water replenishment valve 21, the second water source outlet valve 22 and the temperature sensor 12 are all connected to the controller 3, that is, they are all controlled by the controller 3. The controller 3 is a controller in the prior art, such as a CPU, PLC, etc. The cold water pipeline 2 is also provided with a temperature sensor.

The working principle of this implementation is:

When the water in the water storage tank 11 of the solar water heater 1 is insufficient, close the first water source outlet valve 13 and the second water source outlet valve 22, open the solar water replenishment valve 21, fill the water storage tank 11, and close the solar replenishment valve 21 after the water replenishment is completed. ；

When using water, the temperature sensor 12 detects the temperature of the water in the water storage tank 11. When the temperature is higher than or equal to the set temperature of the wall-hung boiler 5, the controller 3 opens the first water source outlet valve 13 (solar water replenishment valve 21 and second The water outlet valve 22 of the water source is closed). At the same time, the heating module of the wall-hung boiler 5 is notified not to start, and the water in the water storage tank 11 does not need to be heated when it passes through the wall-hung boiler 5, and is directly sent to the faucet 7 for use; when the temperature of the water in the water storage tank 11 When the cold water temperature is higher than the set temperature of the wall-hung boiler 5, the controller 3 opens the first water source outlet valve 13 (solar water replenishment valve 21 and the second water source outlet valve 22 are closed), and at the same time notifies the boiler 5 to heat The module starts, the water in the water storage tank 11 is heated to the set temperature by the wall-hung boiler 5 and then sent to the faucet 7 for use; when the temperature of the water in the water storage tank 11 is lower than the cold water temperature, the controller 3 opens the second water source outlet valve 22 ( The solar water replenishment valve 21 and the first water outlet valve 13 are closed), and the heating module of the wall-hung boiler 5 is notified to start.

Figure 2 is a second embodiment of the present invention. The wall-hung boiler hot water system includes a solar water heater 1 and a wall-hung boiler 5 connected in series with it. The water outlet of the solar water heater 1 is connected to The water inlet end of the wall-hung boiler 5 enables the water in the water storage tank 11 of the solar water heater 1 to enter the wall-hung boiler 5.

The water inlet end of the solar water heater 1 and the water inlet end of the wall-hung boiler 5 are respectively connected to the cold water pipeline 2; the cold water pipeline 2 is connected to the water inlet end of the solar water heater 1 through the solar water supply pipeline 15.

The water inlet end of the wall-hung boiler 5 is provided with a water inlet switching unit. Specifically, the water inlet switching unit includes a controller 3, a temperature sensor 12 located in the water storage tank 11 of the solar water heater 1, and The solar water replenishment valve 21 on the cold water pipeline 2 of the solar water heater 1 and the three-way valve 4 connecting the water outlet end of the solar water heater 1, the water inlet end of the wall-hung boiler and the cold water pipeline 2 are connected to the solar water heater 1 The valve 21, the three-way valve 4 and the temperature sensor 12 are all connected to the controller 3, that is, they are all controlled by the controller 3. The cold water pipeline 2 is also provided with a temperature sensor.

The working principle of this implementation is:

When the water in the water storage tank 11 of the solar water heater 1 is insufficient, close the first water source outlet valve 13 and the second water source outlet valve 22, open the solar water replenishment valve 21, fill the water storage tank 11, and close the solar replenishment valve 21 after the water replenishment is completed. (The solar water replenishment valve 21 is closed during the water use process);

When using water, the temperature sensor 12 detects the temperature of the water in the water storage tank 11. When the temperature is higher than or equal to the set temperature of the wall-hung boiler 5, the controller 3 controls the three-way valve 4 to connect the water outlet of the solar water heater 1 and the wall-hung boiler 5, close the cold water pipeline 2, and at the same time notify the heating module of the wall-hung boiler 5 not to start, the water in the water storage tank 11 does not need to be heated when it passes through the wall-hung boiler 5, and is directly sent to the faucet 7 for use; when the water storage tank 11 When the water temperature is higher than the cold water temperature but has not reached the set temperature of the wall-hung boiler 5, the controller 3 controls the three-way valve 4 to connect the water outlet of the solar water heater 1 and the water inlet of the wall-hung boiler 5, and close the cold water pipe 2 at the same time. Notify the heating module of the wall-hung boiler 5 to start, and the water in the water storage tank 11 is heated to the set temperature by the wall-hung boiler 5 and sent to the faucet 7 for use; when the temperature of the water in the water storage tank 11 is lower than the cold water temperature, the controller 3 controls three The through valve 4 connects the cold water pipeline 2 with the water inlet end of the wall-hung boiler 5, closes the water outlet of the solar water heater 1, and at the same time notifies the heating module of the wall-hung boiler 5 to start, and the cold water enters the wall-hung boiler 5 from the cold water pipeline 2 to be heated to the device. Send to faucet 7 for use after set temperature.

Fig. 3 is a third embodiment of the present invention. The difference between this embodiment and the first embodiment is that the controller 3 is located inside the wall-hung boiler 5, compared to the first embodiment in which the controller 3 is located outside the wall-hung boiler 5 In this way, this implementation has better integration and takes up less space.

In the same way, the controller 3 in the second embodiment described above may also be located inside or outside the wall-hung boiler.

The above-mentioned solar water replenishing valve 21, the second water source outlet valve 22, the first water source outlet valve 13, and the three-way valve 4 may all be manual valves or all solenoid valves or part of manual valves and part of solenoid valves. For the solenoid valve.

The water inlet end of the wall-hung boiler 5 is provided with a water flow sensor, and the water flow sensor is connected to the above-mentioned controller 3. When the water flow sensor detects the water volume information, that is, the water outlet of the wall-hung boiler 5 is opened, the controller 3 controls The temperature sensor 12 detects the temperature of the water in the water storage tank 11, and then performs the next step as described above. The use of a water flow sensor in conjunction with the aforementioned water inlet switching unit can realize fully automated control of the water inlet of the wall-hung boiler, which is convenient for users of all ages.

The basic embodiments and related preferred embodiments of the hot water system of the present invention have been described above. On the basis of the above-mentioned technical solutions of the hot water system of the present invention, the present invention may further include a cold water supply manifold 6, and the solar water heater 1 The water inlet end of the wall-hung boiler 5 and the water inlet end of the wall-hung boiler 5 are respectively connected to the cold water supply main pipe 6.

It can be seen from the above description of the hot water system of the present invention that, typically, the water inlet end of the wall-hung boiler 5 is provided with a water inlet switching unit, and the water inlet switching unit makes the water inlet from the wall-hung boiler 5 The water entering the wall-hung boiler 5 is the water in the solar water heater 1 and the water with a higher temperature in the cold water. However, under the enlightenment of the technical concept of the present invention, those skilled in the art may not adopt the above-mentioned water inlet switching unit. For example, within the scope of the technical concept of the present invention, a quick-insertion pipe joint is installed in the water inlet pipe of the wall-hung boiler 5 , So that the water inlet pipe of the wall-hung boiler 5 and the water outlet end of the solar water heater 1 and the cold water pipe 2 of the wall-hung boiler 5 form a detachable quick-plug connection. When the wall-hung boiler 5 enters water from the solar water heater 1, the The quick-insertion pipe joint is connected to the water outlet end of the solar water heater 1. When the wall-hung boiler enters water from the cold water pipeline 2, the quick-insertion pipe joint is connected to the cold water pipeline, thereby realizing the technical concept of the present invention.

It can be seen from the above description that the advantage of the present invention is that the water entering the wall-hung boiler 5 from the water inlet end of the wall-hung boiler 5 has a higher temperature in the first water source and the second water source through the water inlet switching unit. To reduce the energy consumption of the wall-hung boiler 5 and achieve the purpose of energy saving; the hot water system does not substantially change the main pipelines of the solar water heater 1 and the wall-hung boiler 5, but only at the outlet of the solar water heater 1 and the wall-hung boiler There is a water inlet switching unit connected between the water inlets of 5, and the function of the water terminal to output hot water in real time is basically realized by borrowing the original pipeline. There is no need to lay an independent water pipeline to ensure the pipeline structure of the hot water system. Simplicity and reliability; in the preferred solution of the present invention, each valve, temperature sensor, etc. are automatically controlled by the controller, which has a high degree of automation and is convenient for users to use.

The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above-mentioned embodiments. Within the scope of the technical concept of the present invention, many simple modifications can be made to the technical solutions of the present invention. These simple modifications all belong to the protection scope of the present invention. In addition, it should be noted that the various specific technical features described in the foregoing specific embodiments can be combined in any suitable manner, provided that there is no contradiction. In order to avoid unnecessary repetition, various possible combinations are not described separately in the present invention.

In addition, various different embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.

Claims

A wall-hung boiler hot water system, characterized in that it comprises a wall-hung boiler (5), a first water source and a second water source, and the wall-hung boiler (5) has a water inlet for controlling the wall-hung boiler (5) to enter The water inlet switching unit is connected between the first water source and the second water source so that the water entering the wall-hung boiler (5) from the water inlet end of the wall-hung boiler (5) is all High temperature water in the first water source and the second water source.
The wall-hung boiler hot water system according to claim 1, wherein the water inlet switching unit includes a controller (3), valves located in each pipeline, and located in the first water source and the second water source In the temperature sensor (12), each of the valves and the temperature sensor (12) are connected to the controller (3).
The wall-hung boiler hot water system according to claim 2, wherein a first water source outlet valve (13) is provided between the water outlet end of the first water source and the water inlet end of the wall-hung boiler (5), A second water source water outlet valve (12) is provided between the water outlet end of the second water source and the water inlet end of the wall-hung boiler (5).
The wall-hung boiler hot water system according to claim 2, wherein the outlet end of the first water source and the outlet end of the second water source are connected to the wall-hung boiler (5) through a three-way valve (4) The water inlet end.
The wall-hung boiler hot water system according to claim 2, wherein the valve is an electromagnetic valve.
The wall-hung boiler hot water system according to claim 2, wherein the controller (3) is located inside or outside the wall-hung boiler (5).
The wall-hung boiler hot water system according to any one of claims 1 to 6, characterized in that the water inlet end of the wall-hung boiler (5) is provided with a water flow sensor.
The wall-hung boiler hot water system according to any one of claims 1 to 6, wherein the first water source is a solar water heater (1), and the second water source is cold water.
The wall-hung boiler hot water system according to claim 8, characterized in that a solar water replenishment valve (21) is provided on the solar water replenishment pipeline (15) of the solar water heater (1).