Intelligent integrated air valve
By designing intelligent integrated air valves, using sensors and controllers to achieve automatic monitoring and remote early warning, the existing air valves are solved instability in operation and difficulty in trouble detection in long-distance water transmission systems, and the safety of the system is improved efficiency.
Patent Information
- Application Number
- CN202421439761.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-24
AI Technical Summary
In the water transfer system of long-distance pump stations, existing float air valves are prone to problems such as inhalation failure, poor air holes, and lack of waterproof hammer functions, resulting in pipeline collapse, reduced water transfer efficiency and waste of water resources. At the same time, since the air valve is often arranged in remote areas, patrol is difficult, and faults are often not discovered immediately, resulting in high safety risks.
An intelligent integrated air valve is designed, adopting the structure of the outer valve chamber, the inner valve chamber and the inlet and exhaust chamber, equipped with pressure sensor, flow rate sensor and water level sensor, and the controller monitors and analyzes signals in real time to realize the automatic valve entry. , exhaust operation, and has remote early warning function.
It realizes the reliability of valve inlet and exhaust operation and automatic identification of operating conditions, can intelligently monitor and alarm, reduces the difficulty and cost of manual inspection, and improves the safety and efficiency of the water supply system.
Smart Images
Figure CN222526889U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of long-distance water pipeline valves, in particular to an intelligent integrated air valve. Background Art
[0002] Long-distance water supply projects can be regarded as the capillaries of the national water network, which are closely related to people's lives. Their intelligent management level is directly related to the national water security. In the long-distance pump station water supply system, due to the long water supply pipeline, the entire water supply pipeline is arranged with ups and downs and is restricted by the terrain and buildings along the way. It is very easy to form gas and there is a great risk of water hammer. In order to solve the problem of exhaust and air replenishment in the water supply pipeline, it is necessary to install air valves at appropriate positions of the water supply pipeline. The air valve is a key valve in the water supply pipeline, which plays a role in ensuring the safety, water-saving efficiency and water delivery efficiency of the water supply pipeline operation.
[0003] At present, most of the air valves used in long-distance pump station water delivery systems are float-type air valves. Common float-type air valve failure accidents include:
[0004] 1. Negative pressure caused by air valve suction failure causes pipeline collapse;
[0005] 2. The air valve pores are blocked, resulting in air blockage and air disturbance, which reduces the efficiency of pipeline water delivery.
[0006] 3. The water column fills up too quickly due to the lack or failure of the air valve's anti-water hammer function, resulting in valve closing water hammer. The air valve may become stuck, the float may become stuck, or other mechanical failures may occur, leading to long-term water leakage and serious waste of water resources!
[0007] In addition, in actual application, it is also found that because long-distance water pipelines are often arranged in remote areas with harsh climates and few people, valves are easily blocked. However, it is very difficult to inspect air valves manually, which requires a lot of manpower and material resources. Therefore, when an air valve fails, it is often impossible to obtain key information such as the damage location in the first place, resulting in a long time to stop the pump for maintenance, which poses a greater safety risk. Summary of the invention
[0008] In view of this, the purpose of the utility model is to provide an intelligent integrated air valve to achieve reliable valve intake and exhaust operation, automatic identification of operating conditions, and intelligent monitoring and alarm.
[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0010] The intelligent integrated air valve described in the utility model includes an outer valve cavity, an inner valve cavity arranged in the outer valve cavity, and an air inlet and exhaust cavity arranged above the outer valve cavity; an air inlet and exhaust port communicating with the atmosphere is opened on the cavity wall of the air inlet and exhaust cavity.
[0011] A valve port for communicating with a water supply pipeline is provided at the bottom of the outer valve cavity. A pressure sensor, a flow rate sensor and a water level sensor are provided in the valve port. The signal output ends of the pressure sensor, the flow rate sensor and the water level sensor are respectively connected to the signal input ends of the controller.
[0012] The controller receives detection signals from each sensor, analyzes and processes the obtained detection signals and converts the sensor signals into digital signals, controls the actions of the first and second valve plates according to the digital signals, and performs remote warning when a failure occurs in the air valve.
[0013] The upper side wall of the inner valve cavity is provided with a first air guide hole communicated with the outer valve cavity, and the top wall of the inner valve cavity is provided with a second air guide hole communicated with the air inlet and outlet cavity; a first telescopic arm driven by a first motor is vertically upwardly arranged at the bottom of the inner valve cavity, a first valve plate is fixed to the top of the first telescopic arm, the side circumference of the first valve plate is slidably matched with the side wall of the inner valve cavity, and a concave cavity is provided on the upper surface of the first valve plate; a valve core is fixed on the top wall of the inner valve cavity at the second air guide hole, the shape of the valve core matches the shape of the concave cavity, an L-shaped air duct is provided on the valve core, the upper air port of the L-shaped air duct is communicated with the second air guide hole, and the side air port of the L-shaped air duct is communicated with the inner valve cavity.
[0014] Optionally, a second telescopic arm driven by a second motor is vertically arranged downward on the top wall of the air inlet and outlet chamber, and a second valve plate is fixed to the lower end of the second telescopic arm; a vertical exhaust hole is coaxially arranged through the first telescopic arm, the first valve plate, the valve core, the second valve plate and the second telescopic arm, and the upper orifice of the vertical exhaust hole on the second telescopic arm is connected to the atmosphere, and the lower orifice of the vertical exhaust hole on the first telescopic arm is connected to the outer valve chamber.
[0015] Optionally, the first telescopic arm and the second telescopic arm are both nut-screw pairs; the first and second motors respectively drive the corresponding nuts to rotate forward and reversely, thereby driving the corresponding screws to extend or retract.
[0016] Optionally, a first filter is provided at the inlet and outlet ports in the inlet and outlet chamber, and a second filter is provided at the valve port; the first filter is provided to prevent flying insects, leaves and other debris in the environment from entering the valve body to ensure that the air valve can operate normally in the field environment; the second filter is provided to filter dirt in the water supply pipe to prevent dirt from entering the valve body.
[0017] Optionally, in order to meet the power supply needs of air valves arranged in remote areas, a photovoltaic solar panel power generation device is arranged above the air intake and exhaust chamber, and the power output end of the photovoltaic solar panel power generation device is respectively connected to the power input end of the pressure sensor, flow rate sensor, water level sensor and controller.
[0018] The utility model is aimed at projects in remote areas with long water pipelines. While assisting the water pipelines to achieve safe operation, it can also identify abnormal operating conditions and issue remote alarms, making it easy to obtain air valve failure information in the first place, further ensuring the safe operation of the air valve and the water pipeline, and also saving maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the utility model.
[0020] Figure 2 It is a schematic diagram of the top view of the valve core of the utility model.
[0021] Figure 3 yes Figure 2 AA section view.
[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the air intake and exhaust cavity of the utility model.
[0023] Figure 5 It is a schematic diagram of the exhaust working condition of the utility model, and the arrow direction in the figure is the gas flow direction.
[0024] Figure 6 It is a schematic diagram of the air intake working condition of the utility model, and the arrow direction in the figure is the gas flow direction.
[0025] Figure 7 It is a schematic diagram of the closed working condition of the utility model. DETAILED DESCRIPTION
[0026] The following is a detailed description of an embodiment of the utility model in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the scope of application of the utility model is not limited to the following embodiment.
[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0028] As attached Figure 1 As shown, the intelligent integrated air valve described in the utility model includes an outer valve chamber 1, an inner valve chamber 2 arranged in the outer valve chamber 1, and an air inlet and exhaust chamber 3 arranged above the outer valve chamber 1; an air inlet and exhaust port 3.1 communicating with the atmosphere is opened on the chamber wall of the air inlet and exhaust chamber 3.
[0029] Advantageously or exemplarily, Figure 1 , 4 As shown, a first filter screen 3.2 is provided at the air inlet and outlet port 3.1 in the air inlet and outlet cavity 3, the purpose of which is to prevent flying insects and small animals in the environment from entering the valve body, and to prevent leaves, hay and other debris from being sucked into the valve body during air intake, so as to ensure the normal operation of the air valve in the field environment.
[0030] like Figure 1 As shown, a valve port 1.1 for communicating with a water supply pipe 4 is provided at the bottom of the outer valve cavity 1, and a pressure sensor 5, a flow rate sensor 6, and a water level sensor 7 are installed in the valve port through a bracket; the signal output ends of the pressure sensor 5, the flow rate sensor 6, and the water level sensor 7 are respectively connected to the signal input ends of the single-chip controller 13.
[0031] The pressure sensor 5, the flow rate sensor 6 and the water level sensor 7 detect the pressure, flow rate and water level in the water pipe 4 in real time, and transmit the collected detection signals to the single-chip microcomputer controller 13 through the data line. The single-chip microcomputer controller 13 analyzes and processes the received detection signals of each sensor and converts them into digital signals, controls the opening / closing of the air valve according to the digital signals, and performs remote warning when the air valve fails.
[0032] Advantageously or exemplarily, Figure 1 As shown, a second filter screen 1.2 is provided at the valve port 1.1, and the second filter screen 1.2 is used to filter dirt and impurities in the water delivery pipe 4 to prevent them from entering the valve body.
[0033] like Figure 1 , 3 As shown, a first air guide hole 2.1 communicating with the outer valve chamber 1 is provided on the upper side wall of the inner valve chamber 2, and a second air guide hole 2.2 communicating with the air intake and exhaust chamber 3 is provided on the top wall of the inner valve chamber 2; a first telescopic arm driven by a first motor 2.3 is vertically arranged upward at the bottom of the inner valve chamber 2, a first valve plate 2.4 is fixed to the top of the first telescopic arm, the side circumference of the first valve plate 2.4 is slidably matched with the side wall of the inner valve chamber 2, and a concave cavity 2.5 is provided on the upper plate surface of the first valve plate 2.4; a valve core 2.6 is fixed on the top wall of the inner valve chamber 2 at the second air guide hole 2.2, and the shape of the valve core 2.6 matches the shape of the concave cavity 2.5, that is, the side wall of the valve core 2.6 is slidably matched with the side wall of the concave cavity 2.5; an L-shaped airway is provided on the valve core 2.6, the upper air port 2.7 of the L-shaped airway is communicated with the second air guide hole 2.2, and the side air port 2.8 of the L-shaped airway is communicated with the inner valve chamber 2.
[0034] Advantageously or exemplarily, Figure 1As shown, a second telescopic arm 9.2 driven by a second motor 3.3 is vertically arranged downward on the top wall of the air inlet and outlet chamber 3, and a second valve plate 3.4 is fixed to the lower end of the second telescopic arm 9.2 to improve the overall air-tightness effect of the valve body; a vertical exhaust hole 8 is coaxially arranged through the first telescopic arm 9.1, the first valve plate 2.4, the valve core 2.6, the second valve plate 3.4 and the second telescopic arm, and the upper orifice of the vertical exhaust hole 8 on the second telescopic arm is connected to the atmosphere, and the lower orifice of the vertical exhaust hole 8 on the first telescopic arm is connected to the outer valve chamber 1.
[0035] Advantageously or exemplarily, Figure 1 As shown, the first telescopic arm 9.1 and the second telescopic arm 9.2 are both nut and screw pairs 9.1 and 9.2; the first motor 2.3 and the second motor 3.3 drive the corresponding nuts to move forward and reverse respectively, thereby driving the corresponding screws to extend or retract.
[0036] Advantageously or exemplarily, Figure 1 As shown, in order to meet the power supply needs of air valves arranged in remote areas, a power generation device consisting of a photovoltaic solar panel 11 and a battery 12 is arranged above the air intake and exhaust chamber 3 through a support frame 10, and the power output end of the photovoltaic solar panel power generation device is respectively connected to the power input end of the pressure sensor 5, the flow rate sensor 6, the water level sensor 7 and the single-chip controller 13; to adapt to the outdoor environment, the power output line of the battery 12 is connected to the distribution box 15 through a threading tube 14.
[0037] The working process of this utility model can be divided into two working conditions according to the valve action, namely working condition A and working condition B:
[0038] A working condition (exhaust):
[0039] like Figure 1 , 5 As shown, when the water pipeline 4 is filled with water, the pressure and flow rate of the water pipeline 4 change and a large amount of exhaust is required. The pressure sensor 5, the flow rate sensor 6 and the water level sensor 7 transmit the detected signals to the single-chip controller 13. The single-chip controller 13 determines whether the pressure, flow rate and water level in the water pipeline 4 exceed the predetermined values. When the predetermined values are exceeded, the first telescopic arm 9.1 and the second telescopic arm 9.2 are controlled to retract. At this time, the first valve plate 2.4 descends to separate the concave cavity 2.5 from the valve core 2.6. At the same time, the second valve plate 3.4 rises to open the second air guide hole 2.2. The air valve is in an open state, and the air passage of the air valve is completely unblocked. The gas in the water pipeline 4 is quickly discharged into the atmosphere through the air inlet and outlet 3.1. The gas flows as shown in FIG. Figure 5 Indicated by the arrow.
[0040] A working condition (intake):
[0041] like Figure 16, when the single-chip controller 13 determines that the pressure in the water pipeline 4 is lower than the predetermined value according to the input detection signal, the first telescopic arm 9.1 and the second telescopic arm 9.2 are controlled to retract, and the first valve plate 2.4 is lowered to separate the concave cavity 2.5 from the valve core 2.6, and the second valve plate 3.4 is raised to open the second air guide hole 2.2, the air valve is in the open state, the air valve gas channel is completely unblocked, and the external environment gas quickly enters the water pipeline 4 from the air inlet and outlet 3.1, avoiding the generation of negative pressure in the water pipeline 4; the gas flow direction is as shown in FIG. Figure 6 Indicated by the arrow.
[0042] Condition B:
[0043] like Figure 7 As shown, during the normal operation of the air valve, there is a normal working pressure in the water pipeline 4. At this time, the fluid in the water pipeline 4 enters the valve body, and the pressure sensor 5, the flow rate sensor 6 and the water level sensor 7 transmit the detected signals to the single-chip controller 13; when the fluid water level reaches the set water level, for example, when the water level reaches the second filter 1.2, the single-chip controller 13 controls the first telescopic arm 9.1 and the second telescopic arm 9.2 to extend, and at this time the first valve plate 2.4 rises to make the valve core 2.6 be included in the concave cavity 2.5, and at the same time the second valve plate 3.4 descends to block the second air guide hole 2.2, and the air valve is in a closed state; when the water column bridging condition occurs, a small amount of accumulated air in the water pipeline 4 is discharged through the vertical exhaust hole 8, as shown in FIG. Figure 7 As shown; since the air valve is in the closed state, the exhaust can be significantly limited. By delaying the exhaust time, the pressure increase that may be caused by the rapid bridging of the water column is prevented.
[0044] The single-chip microcomputer controller 13 receives the detection signals of the pressure sensor 5, the flow rate sensor 6 and the water level sensor 7 in real time, and uses the stored historical fault data as a supplement to judge whether the detection data of each sensor exceeds the warning value set by the "T test method" through the "T test method" (also known as student's t test, prior art). If it exceeds the set warning value, the single-chip microcomputer controller 13 sends an alarm signal through wired or wireless means, and uploads the fault data to the monitoring center, thereby improving the accuracy of the warning value.
[0045] Finally, it should be emphasized that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein by equivalents. Therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. An intelligent integrated air valve, characterized in that: It comprises an outer valve cavity, an inner valve cavity arranged in the outer valve cavity, and an air inlet and outlet cavity arranged above the outer valve cavity; an air inlet and outlet port communicating with the atmosphere is provided on the cavity wall of the air inlet and outlet cavity; A valve port for communicating with a water delivery pipeline is provided at the bottom of the outer valve cavity, and a pressure sensor, a flow rate sensor, and a water level sensor are provided in the valve port, and the signal output ends of the pressure sensor, the flow rate sensor, and the water level sensor are respectively connected to the signal input end of the controller; The upper side wall of the inner valve cavity is provided with a first air guide hole communicated with the outer valve cavity, and the top wall of the inner valve cavity is provided with a second air guide hole communicated with the air inlet and outlet cavity; a first telescopic arm driven by a first motor is vertically upwardly arranged at the bottom of the inner valve cavity, a first valve plate is fixed to the top of the first telescopic arm, the side circumference of the first valve plate is slidably matched with the side wall of the inner valve cavity, and a concave cavity is provided on the upper surface of the first valve plate; a valve core is fixed on the top wall of the inner valve cavity at the second air guide hole, the shape of the valve core matches the shape of the concave cavity, an L-shaped air duct is provided on the valve core, the upper air port of the L-shaped air duct is communicated with the second air guide hole, and the side air port of the L-shaped air duct is communicated with the inner valve cavity.
2. The intelligent integrated air valve according to claim 1, characterized in that: A second telescopic arm driven by a second motor is vertically arranged downward on the top wall of the air inlet and outlet chamber, and a second valve plate is fixed to the lower end of the second telescopic arm; a vertical exhaust hole is coaxially arranged through the first telescopic arm, the first valve plate, the valve core, the second valve plate and the second telescopic arm, and the upper orifice of the vertical exhaust hole on the second telescopic arm is connected to the atmosphere, and the lower orifice of the vertical exhaust hole on the first telescopic arm is connected to the outer valve chamber.
3. The intelligent integrated air valve according to claim 1 or 2, characterized in that: A first filter screen is arranged at the inlet and outlet ports in the inlet and outlet chamber, and a second filter screen is arranged at the valve port.
4. The intelligent integrated air valve according to claim 1 or 2, characterized in that: A photovoltaic solar panel power generation device is arranged above the air intake and exhaust cavity, and the power output end of the photovoltaic solar panel power generation device is respectively connected to the power input ends of the pressure sensor, flow rate sensor, water level sensor and controller.
5. The intelligent integrated air valve according to claim 1 or 2, characterized in that: The first telescopic arm and the second telescopic arm are both nut and screw pairs.