Domestic water pressure automatic compensation device

Abstract

The utility model relates to the field of water supply equipment, in particular to a domestic water pressure automatic compensation device which comprises a main water supply unit, a compensation water supply unit and an electric control unit, the main water supply unit is provided with a main pipeline, a one-way valve, a first water pressure sensor and a second water pressure sensor, and water can flow from the input end of the main pipeline to the output end of the main pipeline; the compensation water supply unit is provided with a side pipeline, an electric valve and a booster pump. The water inlet end and the water outlet end of the side pipeline are arranged on one side of the water inlet end and the water outlet end of the one-way valve respectively and communicated with the main pipeline. According to the utility model, the electric control unit is used for receiving the dynamic change information of the water pressure of the main pipeline collected by the first water pressure sensor and the second water pressure sensor and comparing the dynamic change information with the lowest water pressure value acceptable by a user to judge whether the booster pump needs to be started, so that the booster pump starts to work only when pressure compensation is needed; therefore, pressure dynamic compensation is performed through a bypass to ensure stable water pressure of a user, electric energy can be saved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of water supply equipment, in particular to an automatic pressure compensation device for domestic water. Background Art

[0002] Domestic water use is often affected by the fact that users on the public water pipe network will use water at the same time in a certain period of time, and the water pressure is often insufficient, which affects the normal use of water facilities in each home. Although there are measures to improve the unstable water pressure by setting up a public water tank in the same building for compensatory water supply, this measure is not satisfactory due to issues such as water supply facility management, the sanitation and safety of secondary water supply, and high operating costs, and is now used less and less. At present, in order to improve the unstable water pressure, many families install a set of booster pumps between the front end of the main water inlet pipe of the water facilities at home and the tap water network entering the house. Most of the booster pumps are directly installed on the water inlet main pipeline, and the water facilities are linked with the booster pumps. As long as the water facilities are turned on, the booster pumps will automatically start. Although this method can ensure the stability of the water pressure of the water facilities regardless of whether the water pressure of the tap water network is stable, and the problem of unstable water pressure can be solved, since the booster pump is installed on the main pipeline, the booster pump needs to be turned on synchronously when the water facilities are used, and the booster pump is kept on all the time, which not only wastes electricity, increases the cost of use, but also affects the service life of the equipment. In view of this, if the domestic water pressure compensation device can be improved, it will be possible to determine whether the booster pump needs to be started based on the water pressure changes in the tap water network and the minimum water pressure value acceptable to the user, so that the booster pump will only start working when pressure compensation is needed. How to save electricity and increase the service life of equipment while achieving pressure stability through pressure compensation is a problem to be solved in this case. Utility Model Content

[0003] In order to overcome the deficiencies in the prior art, the utility model discloses an automatic pressure compensation device for domestic water, comprising a main water supply unit, a compensation water supply unit and an electronic control unit, wherein the main water supply unit is provided with a main pipeline and a one-way valve, a first water pressure sensor and a second water pressure sensor disposed on the main pipeline, and water can flow from the input end to the output end of the main pipeline; the compensation water supply unit is provided with a side pipeline and an electric valve and a booster pump disposed on the side pipeline, the water inlet end and the water outlet end of the side pipeline are respectively disposed on the water inlet end side and the water outlet end side of the one-way valve and are both connected to the main pipeline, and the electronic control unit is electrically connected to the main water supply unit and the compensation water supply unit. The utility model improves the domestic water pressure compensation device, arranges a compensation water supply unit next to the main water supply unit to form a bypass, utilizes the electronic control unit to receive the dynamic change information of the water pressure of the main pipeline collected by the first water pressure sensor and the second water pressure sensor, and compares it with the minimum water pressure value acceptable to the user to judge whether it is necessary to start the booster pump, so that the booster pump starts working only when pressure compensation is needed, thereby ensuring the user's water pressure stability by performing dynamic pressure compensation through the bypass, saving electric energy and increasing the service life of the equipment.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A domestic water pressure automatic compensation device includes an electronic control unit, characterized in that it also includes a main water supply unit and a compensation water supply unit, the main water supply unit is provided with a main water pipeline and a one-way valve placed on the main water pipeline, and two water pressure detection sensors, water can flow from the input end to the output end of the main water pipeline, the compensation water supply unit is provided with a bypass water pipeline and a control valve and a booster pump placed on the bypass water pipeline, the bypass water pipeline is placed next to the main water pipeline of the main water supply unit, and its water inlet and water outlet are both connected to the main water pipeline, the water inlet of the bypass water pipeline is on the water inlet side of the one-way valve of the main water supply unit, and the water outlet of the bypass water pipeline is on the water outlet side of the one-way valve of the main water supply unit, and the electronic control unit is electrically connected to the main water supply unit and the compensation water supply unit.

[0006] The main water supply unit includes a main pipeline, a one-way valve, a first water pressure sensor and a second water pressure sensor. The input end and the output end of the main pipeline are respectively set as the head end and the end of the main pipeline. The main water supply unit is sequentially provided with the first water pressure sensor, the one-way valve and the second water pressure sensor from the head end to the end.

[0007] The first water pressure sensor, the one-way valve and the second water pressure sensor are all connected to the main pipeline, and the water flow can flow from the head end to the tail end of the main pipeline but cannot flow from the tail end to the head end of the main pipeline.

[0008] The compensating water supply unit includes a side pipe, an electric valve and a booster pump. The input end and output end of the side pipe are respectively set as the water inlet end and the water outlet end of the side pipe. The compensating water supply unit is sequentially provided with an electric valve and a booster pump from the water inlet end to the water outlet end.

[0009] The electric valve and the booster pump are both communicated with the side pipeline.

[0010] Furthermore, the booster pump is an electric booster water pump.

[0011] The water inlet end of the bypass pipe is placed between the first water pressure sensor and the water inlet end of the one-way valve and connected to the main pipe in the section, and the water outlet end of the bypass pipe is placed between the water outlet end of the one-way valve and the second water pressure sensor and connected to the main pipe in the section.

[0012] The electronic control unit includes a control main board, which can set the normal water pressure range value of the water flow flowing into the head end of the main pipeline and the minimum water pressure value acceptable to the end user, can receive the water pressure change information at the head end of the main pipeline dynamically collected by the first water pressure sensor and the water pressure change information at the end of the main pipeline dynamically collected by the second water pressure sensor for analysis and processing, and can control the automatic opening and closing action of the electric valve and the automatic start and stop action of the booster pump.

[0013] As can be seen from the above description, the advantages of the automatic pressure compensation device for domestic water provided by the utility model are: a compensation water supply unit is arranged next to the main water supply unit, the main water supply unit is provided with a main pipeline and a one-way valve, a first water pressure sensor, and a second water pressure sensor, and the two ends of the compensation water supply unit provided with a bypass pipeline, an electric valve, and a booster pump are respectively connected to the main pipeline at both ends of the one-way valve of the main water supply unit to form a bypass, and the dynamic change information of the water pressure of the main pipeline collected by the first water pressure sensor and the second water pressure sensor is analyzed and compared with the minimum water pressure value acceptable to the user by the electronic control unit to determine whether it is necessary to start the booster pump, so that the booster pump starts working only when pressure compensation is needed, thereby ensuring the user's water pressure stability by performing pressure dynamic compensation through the bypass, and saving electric energy and increasing the service life of the equipment. The utility model has a reasonable design, a simple structure, a low cost, and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall working principle diagram of the automatic pressure compensation device for domestic water according to the utility model;

[0015] Figure 2 This is the working principle diagram of the main water supply unit;

[0016] Figure 3 This is the working principle diagram of the compensation water supply unit.

[0017] Reference numerals:

[0018] 1 main water supply unit; 11 main pipeline; 12 one-way valve; 13 first water pressure sensor; 14 second water pressure sensor; 2 compensation water supply unit; 21 side pipeline; 22 electric valve; 23 booster pump; 3 electronic control unit. DETAILED DESCRIPTION

[0019] The present invention is further described below through specific implementation methods.

[0020] like Figures 1 to 3 As shown, the utility model discloses an automatic compensating device for domestic water pressure, comprising a main water supply unit 1, a compensating water supply unit 2 and an electronic control unit 3. The main water supply unit 1 comprises a main pipeline 11, a one-way valve 12, a first water pressure sensor 13 and a second water pressure sensor 14. The one-way valve and the water pressure sensor are known technologies. The input end and the output end of the main pipeline 11 are respectively set as the head end and the end end of the main pipeline 11. The main water supply unit 1 is provided with a first water pressure sensor 13, a one-way valve 12 and a second water pressure sensor 14 in sequence from the head end to the end end. The first water pressure sensor 13, the one-way valve 12 and the second water pressure sensor 14 are all connected to the main pipeline 11. The water flow can flow from the head end to the end end of the main pipeline 11 but cannot flow from the end end to the head end of the main pipeline 11. The compensating water supply unit 2 comprises a side pipeline 21, an electric valve 22 and a booster pump 23. The booster pump 23 is an electric booster water pump. The electric valve and the booster water pump are known technologies. The input end and output end of the bypass pipe 21 are respectively set as the water inlet end and the water outlet end of the bypass pipe 21, and the electric valve 22 and the booster pump 23 are sequentially arranged from the water inlet end to the water outlet end of the compensation water supply unit 2. The electric valve 22 and the booster pump 23 are both connected to the bypass pipe 21. The water inlet end of the bypass pipe 21 is placed between the first water pressure sensor 13 and the water inlet end of the one-way valve 12 and is connected to the main pipe 11 in the section, and the water outlet end of the bypass pipe 21 is placed between the water outlet end of the one-way valve 12 and the second water pressure sensor 14 and is connected to the main pipe 11 in the section. The electronic control unit 3 is electrically connected to the main water supply unit 1 and the compensation water supply unit 2. The electronic control unit 3 includes a control main board. The electronic control unit 3 can set the normal water pressure range value of the water flow flowing into the head end of the main pipe 11 and the minimum water pressure value acceptable to the end user. It can receive the water pressure change information at the head end of the main pipe 11 dynamically collected by the first water pressure sensor 13 and the water pressure change information at the end of the main pipe 11 dynamically collected by the second water pressure sensor 14 for analysis and processing, and can control the automatic opening and closing action of the electric valve 22 and the automatic start and stop action of the booster pump 23.

[0021] The method of using the automatic domestic water pressure compensation device described in the utility model is as follows:

[0022] Connect the head end of the main pipe 11 to the tap water network, and connect the end thereof with the main water inlet pipe of the water-using facility; turn on the electronic control unit 3, and set the normal water pressure range value of the water flow flowing into the head end of the main pipe 11 and the minimum water pressure value acceptable to the end user in the electronic control unit 3 according to the water pressure of the normal water supply of the tap water network. The set minimum water pressure value is lower than the minimum value of the water pressure range of the normal water supply; the electronic control unit 3 instructs the electric valve 22 to close.

[0023] When the user uses water, the water from the water network flows into the main pipe 11 from the head end, and the actual water pressure value of the water supply is dynamically collected by the first water pressure sensor 13 and fed back to the electronic control unit 3. If the actual water pressure value of the water flowing into the water network collected by the first water pressure sensor 13 is within the set normal range, the water flows through the one-way valve 12, and the second water pressure sensor 14 also collects the actual water pressure value at the end of the main pipe 11 at the same time. Since the one-way valve 12 and the pipeline pressure loss are relatively small, and the set minimum water pressure value acceptable to the user is lower than the minimum value of the water pressure range of normal water supply, at this time, the actual water pressure at the end of the main pipe 11 collected by the second water pressure sensor 14 is close to the actual water pressure value of the water flowing into the head end, that is, not lower than the minimum water pressure value acceptable to the user, so there is no need to start the compensation water supply unit 2, and the main water supply unit 1 can directly supply water for normal use.

[0024] If the actual water pressure value dynamically collected by the first water pressure sensor 13 at the head end of the main pipe 11 is lower than the set normal range, but the actual water pressure value collected by the second water pressure sensor 14 at the end of the main pipe 11 is not lower than the minimum water pressure value acceptable to the user, there is no need to start the compensating water supply unit 2 at this time, and the water directly supplied by the main water supply unit 1 can still be used normally.

[0025] If the actual water pressure value detected by the second water pressure sensor 14 at the end of the main pipe 11 is lower than the minimum water pressure value acceptable to the user, the electronic control unit 3 instructs the electric valve 22 and the booster pump 23 of the compensating water supply unit 2 to open at the same time, and the water in the side pipe 21 is pressurized and merged into the main pipe 11 and flows to the end of the main pipe 11, so that the water pressure at the end of the main pipe 11 reaches or exceeds the acceptable minimum water pressure value, and the pressurized water is finally sent to the main water inlet pipe of the water facility for normal use.

[0026] When the actual water pressure value of the tap water network at the head end of the main pipeline 11 collected by the first water pressure sensor 13 returns to the set normal range, the electronic control unit 3 instructs the booster pump 23 to automatically shut down and the electric valve 22 to automatically close. At this time, the compensating water supply unit 2 stops working, and the water flowing in from the head end of the main pipeline 11 is directly sent by the main water supply unit 1 to the main water inlet pipe of the water facility for normal use.

[0027] The utility model improves the domestic water pressure compensation device, arranges a compensation water supply unit 2 beside a main water supply unit 1, the main water supply unit 1 is provided with a main pipeline 11 and a one-way valve 12, a first water pressure sensor 13, and a second water pressure sensor 14, and the two ends of the compensation water supply unit 2 provided with a bypass pipeline 21, an electric valve 22 and a booster pump 23 are respectively connected to the main pipeline 11 at both ends of the one-way valve 12 of the main water supply unit 1 to form a bypass, and uses an electronic control unit 3 to receive the water pressure dynamic change information of the main pipeline 11 collected by the first water pressure sensor 13 and the second water pressure sensor 14 and analyze and compare it with the minimum water pressure value acceptable to the user to determine whether it is necessary to start the booster pump 23, so that the booster pump 23 starts to work when pressure compensation is needed, thereby ensuring the user's water pressure stability by performing pressure dynamic compensation through the bypass, saving electric energy and improving the service life of the equipment.

[0028] The above is only a specific embodiment of the present utility model, but the design concept of the present utility model is not limited to this. Any non-substantial changes to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A domestic water pressure automatic compensation device, comprising an electronic control unit (3), characterized in that: It also includes a main water supply unit (1) and a compensating water supply unit (2). The main water supply unit (1) is provided with a main water supply pipeline and a one-way valve disposed on the main water supply pipeline, and two water pressure detection sensors. Water can flow from the input end to the output end of the main water supply pipeline. The compensating water supply unit (2) is provided with a bypass water supply pipeline and a control valve and a booster water pump disposed on the bypass water supply pipeline. The bypass water supply pipeline is disposed beside the main water supply pipeline of the main water supply unit (1), and its water inlet and water outlet are both connected to the main water supply pipeline. The water inlet of the bypass water supply pipeline is on the water inlet side of the one-way valve of the main water supply unit (1), and the water outlet of the bypass water supply pipeline is on the water outlet side of the one-way valve of the main water supply unit (1). The electronic control unit (3) is electrically connected to the main water supply unit (1) and the compensating water supply unit (2).

2. The automatic domestic water pressure compensation device according to claim 1, characterized in that: The main water supply unit (1) comprises a main pipeline (11), a one-way valve (12), a first water pressure sensor (13) and a second water pressure sensor (14); the input end and the output end of the main pipeline (11) are respectively set as the head end and the tail end of the main pipeline (11); and the main water supply unit (1) is provided with the first water pressure sensor (13), the one-way valve (12) and the second water pressure sensor (14) in sequence from the head end to the tail end.

3. The automatic domestic water pressure compensation device according to claim 2, characterized in that: The first water pressure sensor (13), the one-way valve (12) and the second water pressure sensor (14) are all connected to the main pipeline (11), and water can flow from the head end to the tail end of the main pipeline (11) but cannot flow from the tail end to the head end of the main pipeline (11).

4. The automatic domestic water pressure compensation device according to claim 3 is characterized in that: The compensating water supply unit (2) comprises a side pipe (21), an electric valve (22) and a booster pump (23); the input end and the output end of the side pipe (21) are respectively set as the water inlet end and the water outlet end of the side pipe (21); and the compensating water supply unit (2) is provided with the electric valve (22) and the booster pump (23) in sequence from the water inlet end to the water outlet end.

5. The automatic domestic water pressure compensation device according to claim 4, characterized in that: The electric valve (22) and the booster pump (23) are both connected to the side pipe (21).

6. The automatic domestic water pressure compensation device according to claim 5, characterized in that: The booster pump (23) is an electric booster water pump.

7. The automatic domestic water pressure compensation device according to claim 6, characterized in that: The water inlet end of the bypass pipe (21) is placed between the first water pressure sensor (13) and the water inlet end of the one-way valve (12) and is connected to the main pipe (11) in the section, and the water outlet end of the bypass pipe (21) is placed between the water outlet end of the one-way valve (12) and the second water pressure sensor (14) and is connected to the main pipe (11) in the section.

8. The automatic domestic water pressure compensation device according to claim 7, characterized in that: The electronic control unit (3) comprises a control mainboard. The electronic control unit (3) can receive water pressure change information dynamically collected by the first water pressure sensor (13) and the second water pressure sensor (14) for analysis and processing, and can control the automatic opening and closing action of the electric valve (22) and the automatic start and stop action of the booster pump (23).

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