CN221348155U - Air valve with state monitoring function - Google Patents

Abstract

The utility model belongs to the technical field of valves, and particularly relates to an air valve with a state monitoring function, which solves the problem that the running state of the air valve is difficult to monitor, and comprises an air valve body and further comprises: the air valve comprises an air valve body, a pressure detection module, an air speed detection module, a water leakage detection module, an audible leakage detection module and a control module, wherein the pressure detection module is arranged on the air valve body and used for detecting the pressure in an inner cavity of the air valve body, the air speed detection module is arranged on the air valve body and used for detecting the air speed of the air valve body when the air valve body is used for exhausting and intaking, the water leakage detection module is arranged on the air valve body and used for detecting whether water exists in an air intake and exhaust flow passage of the air valve body, the audible leakage detection module is arranged on the air valve body and used for detecting whether water leakage sound waves exist, and the control module is electrically connected with the pressure detection module, the air speed detection module, the audible leakage detection module and the audible leakage detection module. The air valve has the effects of monitoring the working state of the air valve and monitoring the water leakage faults of the air valve and the nearby pipelines.

Description

Air valve with state monitoring function

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to an air valve with a state monitoring function.

Background

An air valve is a valve that is typically placed on a plumbing system for exhausting and sucking air during the plumbing system's fluid delivery.

In the related art, air valves often achieve exhaust and intake of a piping system by movement of members such as pistons or flaps inside a valve body. Because these components are located inside the air valve body, the working state of the air valve is difficult to know, and whether the air valve works normally cannot be judged, so that improvement is needed.

Disclosure of utility model

In order to solve the problem that the operation state of the air valve is difficult to monitor, the utility model provides the air valve with a state monitoring function.

The utility model provides an air valve with a state monitoring function, which adopts the following technical scheme:

an air valve with status monitoring function, comprising an air valve body, further comprising:

The pressure detection module is arranged on the air valve body and used for detecting the pressure in the inner cavity of the air valve body;

the air speed detection module is arranged on the air valve body and used for detecting the air speed of the air valve body during air inlet and air outlet;

And the control module is connected with the pressure detection module and the wind speed detection module and is used for judging the working state of the air valve body according to the received output signals of the pressure detection module and the wind speed detection module.

By adopting the technical scheme, during the operation of the infusion pipeline, the air valve provided with the pressure detection module, the air speed detection module and the control module can carry out real-time detection of the operation state, and can jointly judge the working state of the air valve according to the two detection information, so that the accuracy of a judgment result is improved according to the mutual verification of the air speed data and the pressure data, the real-time monitoring of whether the air valve works normally is realized, and the detection of the micro-exhaust state, the high-speed air suction state and the throttle exhaust state of the air valve body is realized.

As a further preferred aspect, the air valve further comprises a displacement detection module mounted on the air valve body for detecting whether the valve clack in the air valve body is displaced;

The displacement detection module is connected with the control module and used for outputting signals to the control module, and the control module judges the working state of the air valve body according to the signals output by the displacement detection module.

By adopting the technical scheme, on the basis of existing pressure and wind speed data, displacement detection is added, and the accuracy of judging the working state of the air valve can be greatly improved through mutual verification of multiple groups of data, so that multiple working states of the monitoring air valve can be accurately detected.

As a further preferable mode, the device also comprises a water leakage detection module which is arranged on the air valve body and used for detecting whether water exists in the air inlet and outlet flow channels of the air valve body;

The water leakage detection module is connected with the control module and used for outputting a signal to the control module, and the control module judges whether the air valve body leaks or not according to the signal output by the water leakage detection module.

By adopting the technical scheme, the additionally arranged water leakage detection module can detect the possible water leakage condition of the air valve body, and the control module can judge whether the air valve body leaks or not according to the output signal of the water leakage detection module.

As a further preferable mode, the air valve further comprises an audible leakage detection module which is arranged on the air valve body and used for detecting whether the audible leakage sound wave exists or not;

The hearing-leakage detection module is connected with the control module and used for outputting signals to the control module, and the control module judges whether water leakage exists in the water conveying line near the air valve node according to the output signals of the hearing-leakage detection module.

By adopting the technical scheme, the additionally arranged leakage detection module can be used for monitoring and warning the possible leakage condition near the air valve connecting pipeline by the control module, so that the leakage monitoring of the pipeline near the air valve body is realized.

As a further preferable mode, the wind speed detection module comprises an air suction wind speed sensor and an air discharge wind speed sensor, wherein the air suction wind speed sensor and the air discharge wind speed sensor are opposite in detection direction, the detection end of the air suction wind speed sensor is located near an air inlet and an air discharge flow passage outer air port of the air valve body, and the detection end of the air discharge wind speed sensor is located near an air inlet and an air discharge flow passage inner air port of the air valve body.

Through adopting above-mentioned technical scheme, the air inlet wind speed sensor and the exhaust wind speed sensor that set up can carry out the detection of many wind directions, many wind speeds to the air current of inlet and exhaust runner department for control module can verify each other according to the data of a plurality of wind speed sensors, promotes the degree of accuracy that air valve body operating condition judged by a wide margin.

As a further preferable mode, the air valve body comprises a main valve body and a micro exhaust valve communicated with the main valve body, and a guide pipe for guiding the air flow exhausted from the exhaust port of the micro exhaust valve to the air suction speed sensor is connected to the micro exhaust valve.

By adopting the technical scheme, the guide pipe can guide the airflow exhausted from the exhaust port of the micro exhaust valve to the air suction air speed sensor, so that the air suction air speed sensor can detect the air suction state of the main valve body and can detect the micro exhaust state of the micro exhaust valve.

As a further preferable aspect, the guide pipe is provided in a closed-up shape toward an end port of the intake wind speed sensor.

Through adopting above-mentioned technical scheme, the guide pipe that one end was the close form setting can focus the trace exhaust air current in the detection port department of inhaling wind speed sensor, promotes the accuracy of inhaling wind speed sensor to the detection of trace exhaust air current.

As a further preferable mode, a communicating pipe for communicating the micro exhaust valve and the main valve body is arranged between the micro exhaust valve and the main valve body, an access hole is formed in the lowest position of the communicating pipe, and an access cover for sealing the access hole is detachably connected to the communicating pipe.

Through adopting above-mentioned technical scheme, the access cover can be opened to the maintainer, through looking over whether there is the water in the communicating pipe along the access hole row outward, judges whether take place the jam condition in the main valve body.

As a further preferred aspect, the pressure detection module includes a plurality of pressure sensors with different detection ranges.

Through adopting above-mentioned technical scheme, set up a plurality of pressure sensor that detect the range is different and can promote the measuring range and the measurement accuracy of air valve, make the state detection of air valve more accurate.

As a further preferable mode, the control module comprises an RTU host for signal acquisition and a central control platform for signal processing, wherein the RTU host is electrically connected with the pressure detection module and the wind speed detection module, and the RTU host is in communication with the central control platform.

By adopting the technical scheme, the RTU host can perform data acquisition, data storage, data communication, signal control and power supply of the pressure detection module and the wind speed detection module. In the running process, the RTU host monitors the waterway system to record transient data, and sends signals of each detection module to the central control platform through a network. The central control platform analyzes the information through an algorithm, identifies the running state, potential problems and performance indexes of the air valve, judges the state of the air valve according to the analysis result, and realizes intelligent monitoring of the system.

In summary, the utility model at least comprises the following beneficial technical effects:

1. The air valve provided with the pressure detection module, the air speed detection module and the control module can detect the running state in real time during the running period of the infusion pipeline, and can comprehensively judge the working state of the air valve according to the two detection information, thereby realizing real-time monitoring on whether the air valve works normally, and realizing trace exhaust state detection, high-speed air suction state detection and throttle exhaust state detection of the air valve body.

2. On the basis of existing pressure and wind speed data, displacement detection is added, and through mutual verification of multiple groups of data, the accuracy of judging the working state of the air valve can be greatly improved, and multiple working states of the monitoring air valve can be accurately detected.

3. The guide pipe can guide the air flow exhausted from the exhaust port of the micro exhaust valve to the air suction speed sensor, so that the air suction speed sensor can detect the air suction state of the main valve body and can detect the micro exhaust state of the micro exhaust valve.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an air valve with condition monitoring function according to an embodiment of the present utility model;

Fig. 2 is a schematic diagram of a connection structure of a water leakage detection module, an audible leakage detection module and a main valve body in an air valve with a state monitoring function according to an embodiment of the present utility model.

The same reference numbers are used throughout the drawings to reference like elements or structures, wherein:

1. An air valve body; 1-1, a main valve body; 1-2, a micro exhaust valve; 2. a pressure detection module; 3. a wind speed detection module; 3-1, an air suction wind speed sensor; 3-2, an exhaust wind speed sensor; 4. a control module; 4-1, RTU host computer; 5. a displacement detection module; 6. a water leakage detection module; 7. a hearing leakage detection module; 8. a guide tube; 9. a communicating pipe; 10. an access cover; 11. an electric wire; 12. a valve clack.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships that are shown based on the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model is described in further detail below with reference to fig. 1-2.

The embodiment of the utility model discloses an air valve with a state monitoring function.

Referring to fig. 1-2, the air valve with the state monitoring function comprises an air valve body 1, a pressure detection module 2, a wind speed detection module 3 and a control module 4; the pressure detection module 2 is arranged on the air valve body 1 and is used for detecting the pressure in the inner cavity of the air valve body 1; the wind speed detection module 3 is arranged on the air valve body 1 and is used for detecting the wind speed and the wind direction of the air valve body 1 during air intake and exhaust; the control module 4 is connected with the pressure detection module 2 and the wind speed detection module 3, and the control module 4 is used for judging the working state of the air valve body 1 according to the received output signals of the pressure detection module 2 and the wind speed detection module 3.

Further, in some embodiments, the air valve with the status monitoring function further comprises a displacement detection module 5 mounted on the air valve body 1 for detecting whether the valve clack 12 in the air valve body 1 is displaced; the displacement detection module 5 is connected with the control module 4 and is used for outputting a signal to the control module 4, and the control module 4 judges the working state of the air valve body 1 according to the output signal of the displacement detection module 5.

On the basis of existing pressure and wind speed data, displacement detection is added, and through mutual verification of multiple groups of data, the accuracy of judging the working state of the air valve can be greatly improved, and multiple working states of the monitoring air valve can be accurately detected.

Further, in some embodiments, the air valve with the status monitoring function further comprises a water leakage detection module 6 installed on the air valve body 1 and used for detecting whether water exists in the air inlet and outlet channels of the air valve body 1; the water leakage detection module 6 is connected with the control module 4 and used for outputting a signal to the control module 4, and the control module 4 judges whether the air valve body 1 leaks or not according to the signal output by the water leakage detection module 6.

Further, in some embodiments, the air valve with the status monitoring function further comprises an audible leakage detection module 7 mounted on the air valve body 1 for detecting whether there is a leaked sound wave; the hearing-leakage detection module 7 is connected with the control module 4 and is used for outputting a signal to the control module 4, and the control module 4 judges whether the water pipe line near the air valve node has a water leakage phenomenon or not according to the output signal of the hearing-leakage detection module 7.

Further, in some embodiments, the wind speed detection module 3 includes an air suction wind speed sensor 3-1 and an air discharge wind speed sensor 3-2 with opposite detection directions, the detection end of the air suction wind speed sensor 3-1 is located near the outer air port of the air inlet and outlet flow passage of the air valve body 1, and the detection end of the air discharge wind speed sensor 3-2 is located near the inner air port of the air inlet and outlet flow passage of the air valve body 1. In other embodiments, the wind speed detection module 3 may comprise three or even more wind speed sensors of different directions.

Further, in some embodiments, the air valve body 1 includes a main valve body 1-1 and a micro exhaust valve 1-2 connected to a side wall of the main valve body 1-1, and the intake air velocity sensor 3-1 and the exhaust air velocity sensor 3-2 are connected to the main valve body 1-1. The detection end of the air suction air speed sensor 3-1 is positioned near the outer air port of the air inlet and outlet flow passage of the air valve body 1, and the detection end of the air exhaust air speed sensor 3-2 is positioned near the inner air port of the air inlet and outlet flow passage of the air valve body 1.

Specifically, the detection end of the air suction air speed sensor 3-1 is positioned in an air inlet and outlet flow channel under the bonnet of the main valve body 1-1 and is positioned at the outer side of the slope of the conical valve body of the main valve body 1-1; the detection end of the exhaust wind speed sensor 3-2 is positioned in an air inlet and outlet flow passage under the bonnet of the main valve body 1-1 and is positioned at the top of the conical valve body of the main valve body 1-1.

Specifically, the detection end of the pressure detection module 2 is connected to the side wall of the main valve body 1-1 or the connection pipe between the main valve body 1-1 and the micro exhaust valve 1-2. In some embodiments, the pressure detection module 2 includes a number of pressure sensors. When the number of the pressure sensors is two or more, the detection ranges of the pressure sensors are different, and the pressure sensors respectively sense lower micro positive pressure/micro negative pressure and higher steady-state pressure. And the detection end of the displacement detection module 5 is positioned in the central hole channel of the valve cap of the main valve body 1-1, and the displacement detection module 5 comprises a proximity switch or an analog displacement sensor.

Further, the upper end of the micro exhaust valve 1-2 is connected with a guiding pipe 8, one end port of the guiding pipe 8, which faces the air suction air speed sensor 3-1, is arranged in a closing shape, and the guiding pipe 8 is used for focusing and guiding the air flow discharged from the air outlet of the micro exhaust valve 1-2 to the air suction air speed sensor 3-1 so as to enable the air suction air speed sensor 3-1 to capture the air flow direction and the air flow speed generated when the micro exhaust valve 1-2 is exhausted. It should be noted that a certain air suction gap needs to be left between the guide tube 8 and the air suction wind speed sensor 3-1.

In the use process, the exhaust direction of the micro exhaust valve 1-2 can be converged by the guide pipe 8 to be consistent with the air suction direction of the main valve body 1-1, and the sensing of the micro exhaust can be realized by using the air suction air speed sensor 3-1, so that the air suction air speed sensor 3-1 can detect the air suction state of the main valve body 1-1 and can detect the micro exhaust state of the micro exhaust valve 1-2.

Further, a communicating pipe 9 for communicating the micro exhaust valve 1-2 and the main valve body 1-1 is arranged between the micro exhaust valve 1-2 and the main valve body 1-1, an access hole is formed in the lowest position of the communicating pipe 9, and an access cover 10 for plugging the access hole is detachably connected to the communicating pipe 9. If necessary, the service personnel can open the access cover 10 to judge whether the main valve body 1-1 is blocked by checking whether the water body in the communicating pipe 9 is discharged along the access opening.

Further, as shown in fig. 2, the detection end of the water leakage detection module 6 is positioned at the bottom of the inner side of the conical valve body above the valve cover of the main valve body 1-1, and the water leakage detection module 6 is preferably a water vapor sensor; under normal working conditions, the bottom of the inner side of the conical valve body above the valve cover is dry, the vapor sensor senses air, the circuit contact is not conducted, and an open-circuit signal of the vapor sensor is output; once the main valve port leaks, water flow wets the water vapor sensor to conduct the contact, and a circuit is output to turn on a signal to indicate the water vapor sensor, so that the water leakage condition of the air valve is monitored.

Further, the leakage detection module 7 includes a hydrophone connected to the peripheral side of the main valve body 1-1 for sensing leakage sound/dripping sound on a pipe to which the air valve is connected, and the hydrophone can monitor leakage conditions of pipes near the air valve.

Further, in this embodiment, the control module 4 includes an RTU host 4-1 and a central control platform (not shown in the figure), the RTU host 4-1 is electrically connected to each detection module through an electric wire 11, and the RTU host 4-1 may be disposed on a side surface or a top cover of the main valve body 1-1 or separately disposed on a wall in a valve well. The RTU host 4-1 controls data acquisition, data storage, data communication, signal control and power supply of each detection module, and the RTU host 4-1 communicates with the central control platform and judges through the central control platform. The RTU host 4-1 monitors the waterway system to record transient data, and sends signals of each detection module to the central control platform through a network. The central control platform analyzes the information through an algorithm, identifies the running state, potential problems and performance indexes of the air valve, and can judge the state of the air valve according to the analysis result; this includes assessing whether its performance is normal, whether there are any potential failures or maintenance requirements. The central control platform will immediately issue an alarm once the system detects any anomaly or a preset threshold is triggered.

In some usage scenarios, all alarms and operational status information will also be communicated to maintenance personnel and administrators in real time through the mobile APP. The APP provides an intuitive interface and real-time updated information, so that a user can know the running condition of the air valve anytime and anywhere and can respond to any abnormal condition rapidly.

In other embodiments, the control module 4 includes a Programmable Logic Controller (PLC) or a microprocessor controller, etc., and only needs to be capable of implementing data acquisition, data storage, signal processing, and control.

It should be noted that, during the operation of the water pipe, the air valve has a plurality of operation states, namely, micro-exhaust in the operation states, the frequency of which is highest, and intermittent exhaust or even continuous micro-exhaust is performed several times to thousands times a day; the high-speed air suction is converted into a high-speed air discharge state but gradually throttled air discharge state during the period of water column bridging.

The specific judgment principle of the working state of the air valve is as follows:

1. And (3) detecting a trace exhaust state: the air suction air speed sensor 3-1 detects the air flow discharged by the micro exhaust valve 1-2, the air quantity is small but the air speed is not small (because of being focused), the duration time is short, the intermittent exhaust is realized, and the frequency is not necessarily required; the valve flap 12 is in a closed state (no displacement signal), and the pressure is substantially in a steady-state pressure state, and is determined as a minute amount of exhaust state of the air valve.

2. High-speed exhaust state detection: the exhaust air speed sensor 3-2 detects the air flow exhausted by the main valve body 1-1, the air speed is maximum, the duration time is longer (the air pipe water filling process of a certain section of pipe section is accompanied), the valve clack 12 is in an open state (displacement signal exists), the pressure is in a micro positive pressure state, and the high-speed exhaust state of the air valve is judged.

3. High-speed inspiration state detection: the air flow speed sensor 3-1 detects the air flow when the main valve body 1-1 sucks air, the air flow speed is large, the duration time can be long or short (along with the pipeline drainage process or the transient negative pressure process), the valve clack 12 is in a state from closed to open (outputs a displacement signal), the pressure is basically in a micro negative pressure state, and the high-speed air suction state is judged.

4. Throttle exhaust state detection: the exhaust wind speed sensor 3-2 detects the air flow exhausted by the main valve body 1-1, and the air flow speed is reduced from large to small and lasts for a period of time; the valve clack 12 is in an open state (the normally closed contact of the proximity switch is opened or the value of the displacement analog sensor is larger), and the air valve can be judged to be in a high-speed throttling exhaust (the later stage of filling water into an empty pipe or the closing of water column is inhibited) state. Or when the air suction is detected, then the air suction is converted into the air discharge, the air speed detection duration is not long, and then the valve clack 12 is in an opened state, the air valve can be judged to be in a high-speed throttling air discharge (for inhibiting the water column from being in a period of closing).

5. Transient water column bridging state: firstly, detecting the air suction speed; detecting the exhaust wind speed; and the exhaust wind speed is firstly from small to large and then from large to small, and the transient water column closing state is judged.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (10)

1. An air valve with a state monitoring function is characterized by comprising an air valve body (1), and further comprising:

The pressure detection module (2) is arranged on the air valve body (1) and used for detecting the pressure in the inner cavity of the air valve body (1);

The wind speed detection module (3) is arranged on the air valve body (1) and used for detecting the wind speed of the air valve body (1) during air inlet and air outlet;

And the control module (4) is connected with the pressure detection module (2) and the wind speed detection module (3) and is used for judging the working state of the air valve body (1) according to the received output signals of the pressure detection module (2) and the wind speed detection module (3).

2. An air valve with a status monitoring function according to claim 1, further comprising a displacement detection module (5) mounted on the air valve body (1) for detecting whether the valve flap (12) in the air valve body (1) is displaced;

The displacement detection module (5) is connected with the control module (4) and is used for outputting signals to the control module (4), and the control module (4) judges the working state of the air valve body (1) according to the signals output by the displacement detection module (5).

3. The air valve with the state monitoring function according to claim 2, further comprising a water leakage detection module (6) mounted on the air valve body (1) for detecting whether water exists in the air inlet and outlet flow channels of the air valve body (1);

The water leakage detection module (6) is connected with the control module (4) and used for outputting signals to the control module (4), and the control module (4) judges whether the air valve body (1) leaks or not according to the signals output by the water leakage detection module (6).

4. An air valve with a state monitoring function according to claim 3, characterized by further comprising an audible leakage detection module (7) mounted on the air valve body (1) for detecting whether there is a leaked sound wave;

The hearing-leakage detection module (7) is connected with the control module (4) and is used for outputting signals to the control module (4), and the control module (4) judges whether water leakage exists in a water conveying pipeline near an air valve node according to the signals output by the hearing-leakage detection module (7).

5. The air valve with the state monitoring function according to any one of claims 1 to 4, wherein the air speed detection module (3) comprises an air suction air speed sensor (3-1) and an air discharge air speed sensor (3-2) with opposite detection directions, the detection end of the air suction air speed sensor (3-1) is positioned near an air inlet and an air discharge flow passage outer air port of the air valve body (1), and the detection end of the air discharge air speed sensor (3-2) is positioned near an air inlet and an air discharge flow passage inner air port of the air valve body (1).

6. An air valve with state monitoring function according to claim 5, characterized in that the air valve body (1) comprises a main valve body (1-1) and a micro exhaust valve (1-2) communicated with the main valve body (1-1), and a guiding pipe (8) for guiding the air flow discharged from the exhaust port of the micro exhaust valve (1-2) to the air suction wind speed sensor (3-1) is connected to the micro exhaust valve (1-2).

7. An air valve with condition monitoring function according to claim 6, characterized in that the guide pipe (8) is provided in a closed-up shape toward one end port of the suction air velocity sensor (3-1).

8. The air valve with the state monitoring function according to claim 7, wherein a communicating pipe (9) for communicating the micro exhaust valve (1-2) and the main valve body (1-1) is arranged between the micro exhaust valve and the main valve body, an access hole is formed in the lowest part of the communicating pipe (9), and an access cover (10) for sealing the access hole is detachably connected to the communicating pipe (9).

9. An air valve with status monitoring function according to claim 1, characterized in that the pressure detection module (2) comprises several pressure sensors with different detection ranges.

10. An air valve with status monitoring function according to claim 1, characterized in that the control module (4) comprises an RTU host (4-1) for signal acquisition and a central control platform for signal processing, the RTU host (4-1) being electrically connected to the pressure detection module (2) and the wind speed detection module (3), the RTU host (4-1) being in communication with the central control platform.