Integrated booster water pump system with electric control circulating water return function

Abstract

The utility model relates to an integrated booster water pump system with an electric control circulating water return function, which comprises a water inlet connected with municipal water supply and a water outlet connected with a water inlet of a water heater, a water inlet cavity, a booster cavity and a water outlet cavity are sequentially arranged along the water inlet and the water outlet, and the booster cavity is provided with a booster impeller. A driving motor for driving the pressurizing impeller is arranged on the axial outer side of the pressurizing impeller, the water return pipe water return opening is formed in the water inlet cavity and connected with a water using end hot water pipe, an electric control valve with the opening and closing controlling function is arranged between the water return opening and the water inlet cavity of the water pump, and all the components are of an integrated water pump head structure connection design. In design, a plurality of common independent assemblies and complex connection in a traditional system are abandoned, and the design of an integrated pump head pipeline without a connecting piece is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water heaters and accessories, in particular to the technical field of integrated pressure boosting water pump systems with electric control circulating backwater function. BACKGROUND

[0002] At present, in order to reduce the time for users to wait for hot water, zero-cold-water gas water heaters or external zero-cold-water circulating water pumps have been widely used. However, according to the different waterway layouts of different families, the zero-cold-water system can be divided into two types: a three-pipe waterway design with a preset dedicated backwater pipe and a two-pipe waterway design using a cold water pipe as a backwater pipe. Although the two-pipe design simplifies the installation process and reduces material and labor costs, it has a significant defect, i.e., due to the use of the corresponding cold water pipe as a backwater pipe, there will be an undesirable phenomenon that hot water will also appear in the cold water pipe, affecting the user experience effect.

[0003] In contrast, the three-pipe zero-cold-water system solves the possibility of cold water being occupied by hot water by setting a dedicated hot water backwater pipe, providing a better user experience. It performs backwater through an internal or external circulating pump in the water heater, but in some cases, especially when the water pressure is low during the peak period of high floors or water use, an additional pressure boosting water pump is often needed to ensure sufficient water flow and pressure. To solve the related needs, the three-pipe zero-cold-water circulating pump and its peripherals need to be configured with accessories of different functions to meet the use needs of related users. The connection between too many accessories on the waterway has problems such as large installation area occupation, many waterway joints, many leakage risks, high cost, high requirements for installation and debugging, and high user skill requirements. SUMMARY

[0004] In view of the above-mentioned needs, the present application proposes an integrated pressure boosting water pump system with electric control circulating backwater function, aiming to overcome the deficiencies of the prior art as described above, by designing a backwater and pressure boosting dual function in the water pump head part, which can effectively realize hot water circulation, reduce product volume, reduce the risk of leakage, reduce product assembly and installation difficulty, and reduce production cost, and also provide necessary pressure support during water use.

[0005] To achieve the above-mentioned purposes, the following technical solutions are adopted in the present application:

[0006] The present application proposes an integrated pressure boosting water pump system with electric control circulating backwater function, comprising a water inlet connected to the municipal water supply and a water outlet connected to the water inlet of the water heater;

[0007] A water inlet cavity, a pressure boosting cavity and a water outlet cavity are sequentially arranged along the water inlet and the water outlet, the pressure boosting cavity is provided with a pressure boosting impeller, and the outer side of the shaft of the pressure boosting impeller is provided with a driving motor for driving the pressure boosting impeller;

[0008] The water return port of the water return pipe is arranged in the water inlet cavity and connected with the hot water pipe of the water using end, and a controllable on-off electric valve is arranged between the water return port and the water pump inlet cavity.

[0009] The above components are connected in an integrated water pump head structure.

[0010] In some possible embodiments, a one-way valve is arranged between the water return port and the water inlet cavity to prevent cold water from flowing through the water return pipe to the water using end.

[0011] In some possible embodiments, a first temperature sensor is arranged in the water path between the water return port and the water outlet.

[0012] In some possible embodiments, a second temperature sensor is arranged in the pipe path between the water inlet and the water outlet.

[0013] In some possible embodiments, a flow meter is arranged in the pipe path between the water inlet and the water outlet.

[0014] In some possible embodiments, the normally closed electric valve is a solenoid valve.

[0015] In some possible embodiments, the normally closed electric valve is a motor valve.

[0016] In embodiments, the driving motor, the first temperature sensor, the second temperature sensor, the flow meter, the electric valve, the switch, the power supply and the like are electrically connected with the controller.

[0017] In this way, the booster water pump head structure integrates the water inlet, the water outlet, the water inlet cavity, the booster cavity, the water outlet cavity, the first temperature sensor, the flow detection device, the water return port, the mechanical one-way valve, the second temperature sensor and the electric valve and the like in one body while realizing the product functions, and abandons the multiple independent components and the complex connection in the traditional system in design, realizes the integrated pump head pipe path design without connection, and the integration can realize the miniaturization, the light weight, the reduction of the comprehensive cost of the product, greatly improves the processing efficiency and simplifies the installation process, and also reduces the fault risk caused by improper connection.

[0018] Further, the number of interfaces between different components is reduced, which fundamentally reduces the potential water leakage risk.

[0019] Meanwhile, the water return function can be flexibly opened or closed according to the actual needs of the user, which ensures that the system can efficiently circulate hot water and provide necessary booster support when using hot water, and significantly improves the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the application of the integrated pressurized water pump system with electric control circulating backwater function;

[0021] Figure 2 is a schematic diagram of the backwater outlet direction of the integrated pressurized water pump system with electric control circulating backwater function;

[0022] Figure 3 is a schematic diagram of the motor direction of the integrated pressurized water pump system with electric control circulating backwater function;

[0023] Figure 4 is a schematic diagram of the water inlet side cross-sectional view of the integrated pressurized water pump system with electric control circulating backwater function;

[0024] Figure 5 is a schematic diagram of the water path cross-sectional view of the integrated pressurized water pump system with electric control circulating backwater function;

[0025] Figure 6 is a schematic diagram of the control system of the integrated pressurized water pump system with electric control circulating backwater function. DETAILED DESCRIPTION

[0026] The features of the application and other related features are further described in detail by the following examples, so as to facilitate the understanding of the skilled in the art:

[0027] It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0028] Further, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in this case can be understood according to the specific circumstances.

[0029] Please refer to Figure 1, is the application scenario diagram of the application of the integrated pressure water pump system with electric control circulating backwater function in the domestic hot water heating system. The working principle of the hot water circulating mode is that when the water end 300 needs to use hot water, the controller 6 is started to make the integrated pressure water pump system with electric control circulating backwater function 400 work in the circulating mode, the electric control valve 51 in the backwater pipeline is in the on state, the cold water in the cold water pipe 10 is heated through the water heater 200, flows through the hot water pipe 20 to deliver hot water to the water end 300, and flows to the backwater outlet 5 through the backwater pipe 30, and then flows back to the water inlet cavity 31 through the mechanical one-way valve 52, the first temperature sensor 62 and the electric control valve 51. When the first temperature sensor detects that the backwater temperature reaches the set value, the controller closes the circulating water pump and the electric control valve 51, and the backwater operation ends. The working principle of the hot water pressure boosting mode is that when the user opens the hot water of the water end 300, the flow meter 61 connected with the controller 6 detects continuous water flow signals within a period of time, the controller starts the hot water pressure boosting function, and at this time the electric control valve 51 is in the closed state, and the water pump works to speed up the hot water flow rate in the hot water pipe. When the user closes the hot water of the water end 300, the flow meter 61 connected with the controller 6 detects that the water flow signal is obviously smaller or disappears within a period of time, the controller 6 judges that the user closes the hot water drainage function of the water end 300, the controller stops the circulating water pump, and the hot water pressure boosting function is closed.

[0030] Please refer to Figures 2 to 5 The specific implementation of the integrated pressure water pump system with electric control circulating backwater function 400 is described as follows. The integrated pressure water pump system with electric control circulating backwater function 400 comprises a water inlet 1 connected with the municipal water supply 100 and a water outlet 2 connected with the water heater 200. A water inlet cavity 31, a pressure boosting cavity 32 and a backwater cavity 33 are sequentially arranged along the water inlet 1 and the water outlet 2. The pressure boosting cavity 32 is provided with a pressure boosting impeller (not marked in the figure), and further comprises a driving motor 4 for driving the pressure boosting impeller. The pressure boosting mode of the pressure boosting cavity 32 through the pressure boosting impeller is a commonly used technical means in the industry, and will not be described in detail.

[0031] Further, the backwater outlet 5 is arranged in the water inlet cavity 31 and connected with the backwater pipe 30 of the water end 300, the backwater outlet 5 is provided with an electric control valve 51 capable of opening and closing the backwater outlet 5, and the backwater outlet 5 is opened during hot water circulation. The normally closed electric control valve (51) is an electromagnetic valve or a motor valve.

[0032] At the same time, the backwater outlet 5 and the water inlet cavity 31 are provided with a one-way valve 52 for preventing cold water from flowing through the backwater pipe to the water end 300. The one-way valve 52 is preferably a mechanical one-way valve.

[0033] In some embodiments, the backwater port 5 is arranged in the axial direction of the drive motor 4, while the water inlet port 1 and the water outlet port 2 are arranged in the direction perpendicular to the axial direction of the drive motor 4. This layout design achieves the compactness of the device and the simplification of the pipeline arrangement, not only optimizing the water flow path, reducing energy loss, and improving the boosting efficiency, but also facilitating installation and maintenance. As a result, the risk of water leakage is reduced, and the overall performance of the system and the user experience are improved.

[0034] Further, as shown in Figure 6 , a first temperature sensor 62 is arranged in the water path between the backwater port 5 and the water outlet port 2, and a second temperature sensor 63 is arranged in the pipeline between the water inlet port 1 and the water outlet port 2. As a flow sensing device, a flow meter 61 is arranged in the pipeline between the water inlet port 1 and the water outlet port 2.

[0035] The drive motor 4, the first temperature sensor 62, the second temperature sensor 63, the flow meter 61, the electric control valve 51, the switch, the power supply, etc. are electrically connected to the controller 6. The controller 6 is independently arranged relative to the water heater 200, which can be controlled by a microcontroller unit (MCU) separately. Preferably, the controller 6 is installed on the back of the drive motor 4.

[0036] In this way, the booster water pump head structure not only realizes the product function, but also integrates the water inlet port 1, the water outlet port 2, the water inlet cavity 31, the booster cavity 32, the water outlet cavity 33, the first temperature sensor 61, the flow meter 63, and the backwater port 5, the mechanical check valve 52, the second temperature sensor 62, and the electric control valve 51 into one body. In the design, the multiple independent components and complex connections commonly seen in traditional systems are abandoned, and the integrated design of the water pump head pipeline without connecting components is realized. The integration can achieve miniaturization and light weight, reduce the overall cost of the product, greatly improve the processing efficiency, simplify the installation process, and reduce the risk of failure caused by improper connection.

[0037] Further, the number of interfaces between different components is reduced, which fundamentally reduces the potential risk of water leakage.

[0038] At the same time, the backwater function can be flexibly turned on or off according to the actual needs of the user, ensuring that the system can not only efficiently circulate hot water, but also provide necessary boosting support when hot water is used, significantly improving the user experience.

[0039] As mentioned above, the case protects an integrated booster water pump system with an electric control circulating backwater function. All technical solutions that are the same or similar to the case should be shown to fall within the protection scope of the case.

Claims

1. A unitary electrically controlled water recirculation booster pump system, characterized by, It comprises a water inlet (1) connected with a municipal water supply (100) and a water outlet (2) connected with a water heater (200); A water inlet cavity (31), a booster cavity (32) and a water outlet cavity (33) are sequentially arranged along the water inlet (1) and the water outlet (2), the booster cavity (32) is provided with a booster impeller, and an axial outer side of the booster impeller is provided with a driving motor (4) for driving the booster impeller; It also comprises a backwater inlet (5) arranged between the water inlet cavity (31) and a backwater pipe (30) of a water using end (300), and a normally closed electric control valve (51) controlled by a controller (6) is arranged between the backwater inlet (5) and the water inlet cavity (31). The above components are connected and designed as an integrated water pump head structure.

2. The integrated water boost pump system with electrically controlled recirculation return function according to claim 1, wherein, A one-way valve (52) is arranged in a water path between the backwater inlet (5) and the water inlet cavity (31) to prevent cold water from flowing to the water using end (300) through the backwater pipe.

3. The integrated water boost pump system with electrically controlled recirculation return function according to claim 1, wherein, A first temperature sensor (62) is arranged in the water path between the backwater inlet (5) and the water outlet (2).

4. The integrated water boost pump system with electrically controlled recirculation return function according to claim 1, wherein, A second temperature sensor (63) is arranged in a pipeline between the water inlet (1) and the water outlet (2).

5. The integrated belt-alternative water return function with electric control booster water pump system according to claim 1, wherein, A flow meter (61) is arranged in the pipeline between the water inlet (1) and the water outlet (2).

6. The integrated boost water pump system with electrically controlled recirculation return function of claim 1, wherein, The normally closed electric control valve (51) is an electromagnetic valve.

7. The integrated belt-alternative water return function with electric control booster water pump system according to claim 1, wherein, The normally closed electric control valve (51) is a motor valve.

8. The integrated boost water pump system with electrically controlled recirculation return function according to any one of claims 1 to 7, characterized in that, The driving motor (4), the first temperature sensor (62), the second temperature sensor (63), the flow meter (61), the electric control valve (51), a switch, a power supply and the controller (6) are electrically connected.

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