Adaptive pressure regulating water supply device

Abstract

This utility model discloses an adaptive pressure-stabilizing water supply device, including a control cabinet, an inlet pipe, a pressure regulating pipe, and an outlet pipe. The pressure regulating pipe is connected to both the inlet and outlet pipes. From left to right, the inlet pipe is equipped with a water pressure sensor and a booster pump. From left to right, the pressure regulating pipe is equipped with an inlet valve, a water storage tank, and an outlet valve. The water storage tank contains a water supply pressure sensor. The inlet pressure sensor, booster pump, inlet valve, outlet valve, and water supply pressure sensor are electrically connected to the control cabinet. The control cabinet controls the opening and closing of the inlet and outlet valves and the start and stop of the booster pump. Compared to existing technologies, this utility model can automatically replenish pressure when there is a pressure shortage and automatically stabilize pressure when there is an overpressure. It consumes relatively less energy and can effectively improve the safety and stability of water supply for users, especially those in high-altitude areas where users are dispersed and pressure fluctuations are large.

Description

Technical Field

[0001] This utility model belongs to the field of urban water supply, specifically relating to an adaptive pressure stabilizing water supply device for use at the front end of the water user. Background Technology

[0002] Urban water supply systems are an integral part of urban public utilities, typically consisting of water sources, transmission pipelines, water treatment plants, and distribution networks. Water is drawn from the source and transported through pipelines to the water treatment plant for treatment. The treated water is then pressurized and distributed to users via the distribution network. Water supply methods include direct supply, secondary supply, differentiated supply based on water quality, differentiated pressure supply, and zoned supply. The appropriate method must be selected based on the specific circumstances to meet the water supply needs of users in different areas distributed along the transmission pipelines.

[0003] In urban water supply systems, factors such as aging and blockage of distribution networks, increased user numbers, equipment malfunctions, and differences in daytime and nighttime water usage often lead to significant water pressure fluctuations at the point of use. Specifically, users near the network experience excessive water pressure, while those further away experience insufficient pressure, particularly in areas with significant elevation differences and dispersed residents. To address excessive pressure, pressure-reducing valves are typically installed on the corresponding floors. For insufficient pressure, overall pressurization is usually implemented, but this can further exacerbate the pressure issues faced by users in lower areas. Since pressure-reducing valves have limited pressure tolerance, they are prone to damage, potentially leading to pipe bursts. Furthermore, pressurizing to meet the water needs of a few users in higher areas is energy-intensive. Utility Model Content

[0004] The purpose of this invention is to overcome the problem of large fluctuations in water pressure at the user end, especially the problem of stabilizing water pressure for users in high-altitude areas where users are scattered and the pressure fluctuation range is large. It provides an adaptive pressure stabilizing water supply device that can automatically replenish pressure when there is a pressure shortage at the water end and automatically stabilize pressure when there is an overpressure. The water supply pressure can be freely set, it is easy to install, and it can stabilize pressure independently for individual users or collectively for multiple users.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an adaptive pressure-stabilizing water supply device, including a control cabinet, an inlet pipe, a pressure regulating pipe, and an outlet pipe. The two ends of the pressure regulating pipe are connected to the inlet pipe and the outlet pipe, respectively. A water pressure sensor and a booster pump are arranged sequentially from left to right on the inlet pipe. An inlet valve, a water storage tank, and an outlet valve are arranged sequentially from left to right on the pressure regulating pipe. A water supply pressure sensor is installed inside the water storage tank. The water pressure sensor, the booster pump, the inlet valve, the outlet valve, and the water supply pressure sensor are electrically connected to the control cabinet. The control cabinet controls the opening and closing of the inlet valve and the outlet valve and the start and stop of the booster pump.

[0006] Optionally, a bypass pipe is connected between the water inlet pipe and the water outlet pipe. A bypass valve is provided on the bypass pipe. The water storage tank is provided with an air inlet with a one-way air inlet valve and a drain outlet with a drain valve. A liquid level sensor is provided inside the water storage tank. The bypass valve, drain valve, and liquid level sensor are electrically connected to the control cabinet. The control cabinet controls the opening and closing of the bypass valve and drain valve.

[0007] The utility model can be used flexibly. It can be used alone at the front end of the user terminal on one or more floors to increase or decrease the pressure of the user terminal on the corresponding floor. It can also be used in conjunction with secondary water supply equipment as a functional supplement to the corresponding equipment.

[0008] The principle of this utility model is as follows: the upper limit and lower limit of the water supply pressure in the water storage tank are set by the control cabinet, the water supply pressure sensor monitors and compares in real time, and combined with the pressure monitored by the incoming water pressure sensor, the control cabinet makes corresponding control actions.

[0009] When the water supply pressure sensor detects that the pressure inside the tank has dropped to the lower limit of the water supply pressure, and the pressure detected by the incoming water pressure sensor is not less than the upper limit of the water supply pressure (during off-peak water usage), the control cabinet opens the inlet and outlet valves, allowing tap water to continuously enter the water storage tank, compressing the air in the upper layer of the tank and storing the pressure of the tap water inside. When the water supply pressure sensor detects that the pressure inside the tank has reached the upper limit of the water supply pressure, the inlet valve closes, and the water storage tank continues to supply water. When the pressure inside the tank is depleted to the lower limit of the water supply pressure, the inlet valve reopens to replenish the pressure in the water storage tank. By continuously opening and closing the inlet valve, the pressure of the tap water is accumulated in the water storage tank and then released to the outside at a certain pressure, achieving a stable water supply. In this case, only the inlet valve needs to be opened and closed, resulting in less energy consumption and avoiding problems such as jamming or failure of traditional pressure reducing valves.

[0010] When the water supply pressure sensor detects that the pressure inside the tank has dropped to the lower limit of the water supply pressure, and the pressure detected by the incoming water pressure sensor is less than the upper limit of the water supply pressure (peak water usage), the control cabinet controls the booster pump to start, and the inlet and outlet valves to open. After being boosted by the booster pump, the tap water continuously enters the water storage tank, compressing the air in the upper layer of the tank, so that the pressure of the tap water is stored in the tank until the water supply pressure sensor detects that the pressure inside the tank has reached the upper limit of the water supply pressure. At this point, the booster pump stops, the inlet valve closes, and the water storage tank continues to supply water. When the pressure inside the tank drops to the lower limit of the water supply pressure, the booster pump starts, the inlet valve opens, and the above steps are repeated to achieve stable water supply.

[0011] To prevent the booster pump from running dry and the water in the storage tank from flowing back, the control cabinet sets a dangerous pressure value for the inlet pipe (when the water supply is interrupted or the water flow is very low). When the pressure detected by the inlet water pressure sensor drops to the dangerous pressure value, the booster pump stops working, the inlet valve closes, and the control cabinet transmits the abnormal situation to the management personnel.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: the present invention can automatically replenish pressure when there is a pressure shortage and automatically stabilize pressure when there is an overpressure, with relatively low energy consumption, which can effectively improve the water safety and stability of users at the water end, especially users in high-altitude areas where users are scattered and the pressure fluctuation range is large. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] The components in the attached diagram are labeled as follows: control cabinet 1, inlet pipe 2, pressure regulating pipe 3, outlet pipe 4, water pressure sensor 5, booster pump 6, inlet valve 7, water storage tank 8, outlet valve 9, water supply pressure sensor 10, bypass pipe 11, bypass valve 12, one-way air inlet valve 13, drain valve 14, and level sensor 15. Detailed Implementation

[0015] Example 1, in conjunction with the following Figure 1 Further description of this utility model: The adaptive pressure-stabilizing water supply device includes a control cabinet 1, an inlet pipe 2, a pressure regulating pipe 3, and an outlet pipe 4. The two ends of the pressure regulating pipe are connected to the inlet pipe and the outlet pipe, respectively. From left to right, the inlet pipe is equipped with a water pressure sensor 5 and a booster pump 6. The water pressure sensor is fixedly connected to the inlet pipe via a threaded connector, and its sensing probe is located inside the inlet pipe. From left to right, the pressure regulating pipe is equipped with an inlet valve 7, a water storage tank 8, and an outlet valve 9. The inlet and outlet of the water storage tank are located at its upper and lower parts, respectively. A water supply pressure sensor 10 is installed inside the water storage tank. The water storage tank is... The spherical or capsule-shaped hollow tank can be made of materials such as iron, stainless steel, or polymer materials. A water supply pressure sensor is fixed to the upper part of the water storage tank via a threaded joint. The pressure probe of the water supply pressure sensor is located in the upper part of the inner cavity of the water storage tank. The incoming water pressure sensor and the water supply pressure sensor can be electrical contact pressure gauges or pressure transmitters, etc. The inlet valve and the outlet valve can be mechanically controlled water valves such as solenoid valves, electric valves, or pneumatic valves. The incoming water pressure sensor, the booster pump, the inlet valve, the outlet valve, and the water supply pressure sensor are electrically connected to the control cabinet. The control cabinet controls the opening and closing of the inlet valve and the outlet valve and the start and stop of the booster pump.

[0016] After prolonged use, due to pressure, air inside the water storage tank will slowly dissolve into the water, gradually reducing the air volume and decreasing the tank's regulating capacity. To quickly replenish air and ensure normal water supply, a bypass pipe 11 is connected between the inlet and outlet pipes. A bypass valve 12 is installed on the bypass pipe. The top of the water storage tank has an air inlet with a one-way air inlet valve 13, which is fixedly connected to the tank via a threaded connector. The bottom of the tank has a drain outlet with a drain valve 14. A drain pipe is connected to the water inlet, and a drain valve is connected in series on the pipe. The bypass valve and drain valve are mechanically controlled water valves such as solenoid valves, electric valves, and pneumatic valves. A liquid level sensor 15 is installed inside the water storage tank. The liquid level sensor can be an infrared liquid level probe, an ultrasonic liquid level probe, or a float-type liquid level probe. The liquid level sensor is fixedly connected to the water storage tank through a threaded connector. Its probe is located in the upper part of the inner cavity of the water storage tank. The bypass valve, drain valve, and liquid level sensor are electrically connected to the control cabinet. The control cabinet controls the opening and closing of the bypass valve and drain valve. When the level sensor detects that the liquid level in the tank is higher than the set upper limit (too little air in the tank), and the water pressure sensor detects that the water pressure in the inlet pipe does not exceed the upper limit of the water supply pressure (to prevent excessive pressure from causing pipe burst), the control cabinet closes the inlet and outlet valves, and opens the bypass valve and drain valve. Tap water is supplied to users normally through the bypass valve, the water in the energy storage tank is discharged through the drain valve, and air enters the tank through the one-way air inlet valve. When the liquid level in the tank drops to the set lower limit, the air replenishment of the energy storage tank ends, the bypass valve and drain valve close, and the device re-enters the water supply or replenishment state.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adaptive steady water supply device, comprising a control cabinet (1), a water inlet pipe (2), a pressure regulating pipe (3) and a water outlet pipe (4), the pressure regulating pipe is communicated with the water inlet pipe and the water outlet pipe at two ends respectively, characterized in that: The inlet pipe is equipped with a water pressure sensor (5) and a booster pump (6) from left to right. The pressure regulating pipe is equipped with an inlet valve (7), a water storage tank (8), and an outlet valve (9) from left to right. The water storage tank is equipped with a water supply pressure sensor (10). The inlet pressure sensor, booster pump, inlet valve, outlet valve, and water supply pressure sensor are electrically connected to the control cabinet. The control cabinet controls the opening and closing of the inlet valve and outlet valve and the start and stop of the booster pump.

2. The self-adapting pressure-conserving water supply device of claim 1, wherein: A bypass pipe (11) connects the inlet pipe and the outlet pipe. A bypass valve (12) is provided on the bypass pipe. The water storage tank is provided with an air inlet with a one-way air inlet valve (13). The water storage tank is provided with a drain outlet with a drain valve (14). A liquid level sensor (15) is provided inside the water storage tank. The bypass valve, drain valve and liquid level sensor are electrically connected to the control cabinet. The control cabinet controls the opening and closing of the bypass valve and drain valve.

Images