Direct connection water supply device

Abstract

The utility model discloses a kind of direct-connection water supply devices, comprising: water inlet main pipe, water outlet main pipe, first check valve, variable frequency water pump, piston and booster cylinder, parallel flat compression pipe and booster pipe are provided between the water inlet main pipe and water outlet main pipe, the first check valve is set on flat compression pipe, the variable frequency water pump is set on booster pipe, the booster cylinder is vertically set on water outlet main pipe, the piston is vertically set in booster cylinder, water flow in water inlet main pipe is sent into water outlet main pipe after being pressurized by the variable frequency water pump on booster pipe, satisfy high pressure water demand, use booster cylinder to store water in pressurization water supply process, continuously pressurized water supply is carried out by the falling of piston, it is favorable for extending the shutdown length of flat peak period variable frequency water pump, reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of water supply technology, and in particular to a direct-connection water supply device. Background Technology

[0002] For water users with lower floor heights, the water pressure requirement is lower, and the municipal water supply network can be directly connected to the water user. However, for some water users with many high-rise buildings, the water pressure requirement is higher during peak hours, and the water pressure of the municipal water supply network cannot meet the usage requirements. Usually, a booster pump needs to be connected to pressurize the water supply.

[0003] Booster pumps have relatively high power and need to work continuously for long periods of time, resulting in high energy consumption. Even when using variable frequency pumps, there is still significant power waste during peak usage periods, which requires improvement. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a direct-connection water supply device that meets the water pressure requirements of high-rise buildings and reduces energy consumption.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a direct-connection water supply device, including: an inlet main pipe, an outlet main pipe, a first one-way valve, a variable frequency water pump, a piston, and a booster cylinder. A parallel pressure equalization pipe and a booster pipe are provided between the inlet main pipe and the outlet main pipe. The first one-way valve is provided on the pressure equalization pipe, the variable frequency water pump is provided on the booster pipe, the booster cylinder is vertically provided on the outlet main pipe, and the piston is vertically and movably provided in the booster cylinder.

[0006] In a preferred embodiment of the present invention, a controller and a frequency converter are further included, wherein the frequency converter is connected in series between the controller and the frequency converter water pump.

[0007] In a preferred embodiment of this utility model, pressure sensors are respectively installed on the inlet main pipe and the outlet main pipe, and the pressure sensors are connected to the controller to transmit pressure signals.

[0008] In a preferred embodiment of the present invention, the piston is provided with a connecting rod extending upward to the top of the booster cylinder, and a counterweight is provided at the top of the connecting rod.

[0009] In a preferred embodiment of the present invention, the booster cylinder is provided with a dust cover that covers the counterweight.

[0010] In a preferred embodiment of this utility model, the main water outlet pipe is connected to the water user.

[0011] In a preferred embodiment of this utility model, a filter pipe is provided between the main water inlet pipe and the municipal pipe network, and a filter is provided on the filter pipe.

[0012] In a preferred embodiment of this utility model, a second one-way valve is provided on the filter tube.

[0013] The beneficial effects of this utility model are as follows: The direct-connection water supply device disclosed in this utility model can directly send water from the inlet main pipe to the outlet main pipe through the pressure equalization pipe to meet the low-pressure water demand, and can also pressurize the water from the inlet main pipe through the variable frequency water pump on the booster pipe and send it to the outlet main pipe to meet the high-pressure water demand. It can also use the booster cylinder to store water during the booster water supply process. After the variable frequency water pump stops, the piston falls to continue boosting the water supply, which helps to extend the downtime of the variable frequency water pump during off-peak periods, thereby further reducing energy consumption. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0015] Figure 1 This is a schematic diagram of a preferred embodiment of a direct-connection water supply device according to the present invention;

[0016] Figure 2 yes Figure 1 A schematic diagram of the structure of the booster cylinder. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] Please see Figures 1-2 The embodiments of this utility model include:

[0019] like Figure 1 The direct-connection water supply device shown is connected between the municipal water supply network 3 and the water user 15. It includes: an inlet main pipe 1, an outlet main pipe 2, a first one-way valve 11, a variable frequency water pump 7, a piston 14, a booster cylinder 13, a controller 9, and a frequency converter 8. A filter pipe 15 is installed between the inlet main pipe 1 and the municipal water supply network 3. A filter 5 is installed on the filter pipe 15 to filter the tap water.

[0020] A second one-way valve 4 is installed on the filter pipe 16 to prevent backflow. The main water outlet pipe 2 is connected to the water user unit 15 to supply tap water to the water user unit 15's pipeline.

[0021] A pressure equalizing pipe 12 and a pressure boosting pipe 6 are connected in parallel between the inlet main pipe 1 and the outlet main pipe 2. The pressure equalizing pipe 12 directly sends the water flow from the inlet main pipe 1 to the outlet main pipe 2 to meet the low-pressure water demand. The first one-way valve 11 is installed on the pressure equalizing pipe 12 to improve safety during use.

[0022] like Figure 1 As shown, the variable frequency water pump 7 is installed on the booster pipe 6. The variable frequency water pump 7 on the booster pipe 6 pressurizes the water flow in the inlet main pipe 1 and sends it to the outlet main pipe 2, meeting the high-pressure water demand. In this embodiment, the frequency converter 8 is connected in series between the controller 9 and the variable frequency water pump 7. The controller 9 is a PLC, and the operation control of the variable frequency water pump 7 is achieved through the frequency converter 8, which helps to reduce energy consumption.

[0023] Pressure sensors 10 are respectively installed on the inlet main pipe 1 and the outlet main pipe 2. The pressure sensors 10 are connected to the controller 9 to transmit pressure signals, which is beneficial for the controller 9 to automatically control the frequency converter 8.

[0024] The booster cylinder 7 is vertically mounted on the main water outlet pipe 2, and the piston 14 is vertically mounted within the booster cylinder 13. Figure 2 As shown, the piston 14 is provided with a connecting rod 19 extending upward to the booster cylinder 13. A counterweight 17 is provided at the top of the connecting rod 19 to increase the downward pressure of the piston 14 and improve its adaptability to water supply pressure requirements. During the operation of the variable frequency water pump 7, the water pressure in the main outlet pipe 2 is high, forcing the piston 14 to rise. The booster cylinder 13 stores tap water. During off-peak periods, after the variable frequency water pump 7 stops, the piston 14 falls to continuously boost water pressure, which helps to extend the off-peak period of the variable frequency water pump 7, thereby further reducing energy consumption.

[0025] like Figure 1 As shown, the four booster cylinders 13 can store several tons of tap water, meeting the water demand of the water user unit 15 during off-peak periods. In addition, the booster cylinders 13 are equipped with dust covers 18 that cover the counterweight 17. The dust covers 18 are fixed to the booster cylinders 13 with screws, making them easy to install and remove, and strengthening the dust protection of the counterweight 17 and the connecting rod 19.

[0026] In summary, the direct-connection water supply device disclosed in this utility model can be connected between the municipal pipeline network 3 and the water user 15, meeting the water demand of the water user and reducing energy consumption.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A direct-connection water supply device, connected between a municipal water supply network and a water user, characterized in that, include: The system includes an inlet main pipe, an outlet main pipe, a first check valve, a variable frequency water pump, a piston, and a booster cylinder. A parallel pressure equalization pipe and a booster pipe are provided between the inlet main pipe and the outlet main pipe. The first check valve is located on the pressure equalization pipe, the variable frequency water pump is located on the booster pipe, the booster cylinder is vertically located on the outlet main pipe, and the piston is vertically movable within the booster cylinder.

2. The direct-connection water supply device according to claim 1, characterized in that, It also includes a controller and a frequency converter, with the frequency converter connected in series between the controller and the variable frequency water pump.

3. The direct-connection water supply device according to claim 2, characterized in that, Pressure sensors are installed on the inlet and outlet water mains respectively, and the pressure sensors are connected to the controller to transmit pressure signals.

4. The direct-connection water supply device according to claim 1, characterized in that, The piston is provided with a connecting rod that extends upward to the top of the booster cylinder, and a counterweight is provided at the top of the connecting rod.

5. The direct-connection water supply device according to claim 4, characterized in that, The booster cylinder is equipped with a dust cover that encloses the counterweight.

6. The direct-connection water supply device according to claim 1, characterized in that, The main water outlet pipe is connected to the water user.

7. The direct-connection water supply device according to claim 1, characterized in that, A filter pipe is installed between the main water inlet pipe and the municipal water supply network, and a filter is installed on the filter pipe.

8. The direct-connection water supply device according to claim 7, characterized in that, A second one-way valve is installed on the filter tube.

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