CN210461908U - Online monitoring system of air valve - Google Patents
Online monitoring system of air valve Download PDFInfo
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- CN210461908U CN210461908U CN201920814729.0U CN201920814729U CN210461908U CN 210461908 U CN210461908 U CN 210461908U CN 201920814729 U CN201920814729 U CN 201920814729U CN 210461908 U CN210461908 U CN 210461908U
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- air valve
- liquid level
- monitoring system
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Abstract
The utility model discloses an online monitored control system of air valve, establish the air valve of floater in including, its characterized in that still including setting up between pipeline and air valve water inlet, the electronic service valve that the normality was opened, the air valve top is equipped with the proximity switch of monitoring floater position, be equipped with the liquid level switch of monitoring water level state in air valve or the electronic service valve. The utility model discloses simple structure, equipment convenience, usable proximity switch, liquid level switch signals are quick, the accurate various states of judging the air valve.
Description
Technical Field
The utility model relates to the technical field of valves, specifically indicate an online monitored control system of air valve.
Background
The combined air inlet and outlet valve (air valve for short) has the functions of automatic air exhaust, micro air exhaust, automatic air supplement and the like on one hand, and improves the discharge efficiency of the water conveying pipeline; on the other hand, when negative pressure is generated in the pipeline, outside air is sucked rapidly, and the pipeline is protected from being damaged by the negative pressure. The air valve is widely used in various water conveying pipelines, plays a role in safety protection and energy conservation and consumption reduction on the pipelines, is key equipment on the water conveying pipelines, and if the air valve cannot normally play the function of the air valve, the problems of air resistance, pipe explosion, negative pressure and even equipment damage caused by water hammer and the like can occur in the water conveying process, so that normal water supply is seriously influenced, the water supply efficiency is reduced, and even the whole system is completely paralyzed.
The existing air valve structure has two types, one is that a floating ball is matched with a large exhaust port on a valve cover in a valve body, and an externally hung micro exhaust valve communicated with a cavity is arranged on the valve body, as described in CN 208750121U, CN 207034377U, CN 102900887A; the other is that the floating ball control valve core assembly is matched with a large exhaust port on the valve cover, the large exhaust port is sealed when the valve core assembly is integrally matched, and micro exhaust is realized when the valve core assembly is separated, as described in CN 108612904 a. Whatever the structure of the air valve, the air valve needs to be inspected by manual reading in the use state; the monitoring method has low efficiency and low reliability; time and labor are wasted, and system data tracing or prediction is lacked. CN 109237120 a discloses an air valve state monitoring device and method, but the device is to install a trigger module in the valve, the installation structure is unclear, and the trigger module is only a micro switch/pressure sensor/noise sensor, and the single trigger module cannot accurately judge the state in the valve, for example, when the valve leaks and the valve exhausts, the micro switch will be opened to send an action signal, and the air valve water inlet cannot be closed instantly when the air valve leaks, which results in serious accidents such as pipe network water hammer, pipe burst, pipe collapse, and the like.
Therefore, there is a need to develop an on-line monitoring system which has a simple structure, can accurately monitor the working state of the air valve, and can timely close the water inlet when the air valve fails.
Disclosure of Invention
The utility model aims at solving the above-mentioned background art not enough, provide a simple structure, can accurate monitoring air valve operating condition, in time close the on-line monitoring system of water inlet when the air valve breaks down.
The technical scheme of the utility model is that: the online monitoring system of the air valve comprises an air valve with a floating ball arranged therein, and is characterized by further comprising an electric maintenance valve which is arranged between a pipeline and an air valve water inlet and is opened normally, wherein a proximity switch for monitoring the position of the floating ball is arranged at the top of the air valve, and a liquid level switch for monitoring the water level state is arranged in the air valve or the electric maintenance valve.
Preferably, the air valve includes from supreme lower valve body, last valve body, the valve gap that sets gradually down, be equipped with micro exhaust valve down on the valve body lateral wall, liquid level switch sets up micro exhaust valve below department on the lower valve body.
Furthermore, proximity switch is including the body of rod that is equipped with the external screw thread, the body of rod and valve gap threaded connection, be equipped with on the body of rod respectively with the valve gap about terminal surface cooperation spacing last nut and lower nut.
Furthermore, when the floating ball is positioned at the highest position, a gap exists between the floating ball and the lower end face of the rod body.
Further, the liquid level switch includes the installation department, installation department and lower valve body threaded connection, be equipped with on the installation department with the spacing outer nut of lower valve body outer wall cooperation.
Furthermore, the liquid level switch also comprises a floater hinged to the installation part, and one end of the installation part, which is close to the inside of the valve, is provided with a magnetic sensing part which is in contact induction with the floater.
Preferably, the lower valve body comprises an upper straight cylinder part with uniform inner diameter, a transition part with reduced inner diameter and a lower straight cylinder part with uniform inner diameter, which are sequentially connected from top to bottom, the micro exhaust valve is positioned on the transition part, and the liquid level switch is positioned on the lower straight cylinder part.
The utility model has the advantages that:
1. simple structure, simple to operate, usable proximity switch, liquid level switch send signal quick, accurate various states of judging the air valve, including normal operating condition (for example empty pipe state, exhaust state when the pipeline fills water, pipeline fill water and accomplish state, negative pressure tonifying qi state) and fault state (trace discharge valve fault state, big discharge port seal fault state that leaks).
2. When a fault occurs in the valve, the air valve is immediately closed by closing the electric overhaul valve, so that serious accidents such as pipe network water hammer, pipe explosion, pipe collapse and the like are avoided, and the valve is intelligent.
Drawings
FIG. 1 is a schematic view of the structure of the present invention
FIG. 2 is an enlarged view of the point A in FIG. 1
FIG. 3 is an enlarged view of the point B in FIG. 1
Wherein: 1-an air valve 2-a lower valve body 3-an upper valve body 4-a valve cover 5-a floating ball 6-a micro exhaust valve 7-an electric overhaul valve 8-a proximity switch 9-a liquid level switch 21-an upper straight cylinder part 22-a transition part 23-a lower straight cylinder part 81-a rod body 82-an upper nut 83-a lower nut 91-an installation part 92-an outer nut 93-a floater 94-a magnetic sensitive part.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
As shown in fig. 1-3, the utility model provides a pair of online monitored control system of air valve, establish the air valve 1 of floater 5 and set up between pipeline and air valve 1 water inlet, the electronic service valve 7 that the normality was opened in including, air valve 1 top is equipped with the proximity switch 8 of monitoring floater 5 position, is equipped with the liquid level switch 9 of monitoring water level state in air valve 1 or the electronic service valve 7.
In this embodiment, air valve 1 is the first structure described in the background art, and air valve 1 includes from supreme lower valve body 2, the last valve body 3, the valve gap 4 that set gradually down, and floater 5 is located lower valve body 2 and is equipped with micro exhaust valve 6 on the 2 lateral walls of lower valve body.
The liquid level switch 9 is a magnetic suspension type liquid level sensor, and comprises an installation part 91, the installation part 91 is in threaded connection with the lower valve body 2, and an outer nut 92 which is matched with the outer wall of the lower valve body 2 for limiting is arranged on the installation part 91. The liquid level switch 9 further comprises a float 93 hinged to the mounting portion 91, and a magnetic sensing part 94 which is in contact with the float 93 and senses the contact of the mounting portion 91 and the end of the mounting portion adjacent to the interior of the valve is arranged.
The lower valve body 2 includes an upper straight cylinder portion 21 having a uniform inner diameter, a transition portion 22 having a reduced inner diameter, and a lower straight cylinder portion 23 having a uniform inner diameter, which are connected in this order from top to bottom, the micro-vent valve 6 is positioned on the transition portion 22, and the liquid level switch 9 is positioned on the lower straight cylinder portion 23. When the water level makes the float 93 contact with the magnetic sensing part 94, the liquid level switch 9 will send out a liquid level signal.
The utility model discloses a working process does:
the proximity switch 8 sends a signal A when the floating ball is positioned at the sealing position with the large exhaust port (the highest position of the floating ball in the valve) and sends a signal B when the floating ball is lower than the sealing position with the large exhaust port, the liquid level switch 9 sends a signal C when the water level is greater than or equal to the preset water level (at the moment, the air valve 1 is in a filled state), and sends a signal D when the water level is smaller than the preset water level (at the moment, the air valve 1 is in an unfilled state), and the water level at the water inlet of the electric maintenance valve 7 is smaller than or equal to the water level at the water inlet of the air valve 1 (as the electric maintenance valve 7 is communicated with the air valve 1, the water level signal in the electric maintenance valve 7 can also reflect. In this embodiment, the preset water level is the water level at the water inlet of the air valve.
The normal working state (such as an empty pipe state, an exhaust state when a pipeline is filled with water, a pipeline water filling completion state and a negative pressure air supplementing state) and a fault state (a micro exhaust valve fault state and a large exhaust port sealing water leakage fault state) of the air valve are judged through signals sent by the proximity switch 8 and the liquid level switch 9 in real time.
The judging method comprises the following steps:
when the proximity switch 8 and the liquid level switch 9 respectively send out signals BD at the same time, the air valve is judged to be in an empty pipe state or an exhaust state when the pipeline is filled with water.
When the proximity switch 8 and the liquid level switch 9 respectively send out signals AC at the same time, the air valve is judged to be in a pipeline water filling completion state at the moment.
When the signal of the proximity switch 8 is suddenly changed from A to B and the signal of the liquid level switch 9 is suddenly changed from C to D within 30 seconds, the air valve is judged to be in a negative pressure air supplementing state.
When proximity switch 8, liquid level switch 9 send signal AD simultaneously respectively, judge this moment that the air valve is in the trace exhaust fault state, close electronic service valve 7 immediately, change trace discharge valve 5.
When the proximity switch 8 and the liquid level switch 9 respectively send out signals BC simultaneously, the air valve is judged to be in a large exhaust port sealing water leakage fault state, the electric maintenance valve 7 is immediately closed, and the air valve 1 is maintained.
Claims (7)
1. The utility model provides an online monitoring system of air valve, establishes air valve (1) of floater (5) in including, its characterized in that still includes and sets up between pipeline and air valve (1) water inlet, electronic service valve (7) that the normality was opened, air valve (1) top is equipped with proximity switch (8) of monitoring floater (5) position, be equipped with liquid level switch (9) of monitoring water level state in air valve (1) or electronic service valve (7).
2. The on-line monitoring system of the air valve according to claim 1, wherein the air valve comprises a lower valve body (2), an upper valve body (3) and a valve cover (4) which are sequentially arranged from bottom to top, a micro exhaust valve (6) is arranged on the side wall of the lower valve body (2), and the liquid level switch (9) is arranged below the micro exhaust valve (6) on the lower valve body (2).
3. The on-line air valve monitoring system of claim 2, wherein the proximity switch (8) comprises a rod body (81) with external threads, the rod body (81) is in threaded connection with the valve cover (4), and an upper nut (82) and a lower nut (83) which are respectively matched with the upper end surface and the lower end surface of the valve cover (4) for limiting are arranged on the rod body (81).
4. An on-line air valve monitoring system as claimed in claim 3 wherein the float (5) is spaced from the lower end of the stem (81) when it is at its highest position.
5. The air valve on-line monitoring system of claim 2, characterized in that the liquid level switch (9) comprises a mounting part (91), the mounting part (91) is in threaded connection with the lower valve body (2), and an outer nut (92) which is matched with and limited by the outer wall of the lower valve body (2) is arranged on the mounting part (91).
6. The system for the on-line monitoring of the air valve according to claim 5, characterized in that said level switch (9) further comprises a float (93) hinged to a mounting portion (91), said mounting portion (91) being provided, at the end adjacent to the inside of the valve, with a magnetic sensitive element (94) sensitive to the contact with the float (93).
7. The on-line air valve monitoring system according to claim 2, wherein the lower valve body (2) comprises an upper straight cylinder portion (21) with a uniform inner diameter, a transition portion (22) with a reduced inner diameter, and a lower straight cylinder portion (23) with a uniform inner diameter, which are sequentially connected from top to bottom, the micro-exhaust valve (6) is positioned on the transition portion (22), and the liquid level switch (9) is positioned on the lower straight cylinder portion (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814729.0U CN210461908U (en) | 2019-05-31 | 2019-05-31 | Online monitoring system of air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814729.0U CN210461908U (en) | 2019-05-31 | 2019-05-31 | Online monitoring system of air valve |
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| Publication Number | Publication Date |
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| CN210461908U true CN210461908U (en) | 2020-05-05 |
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| CN201920814729.0U Active CN210461908U (en) | 2019-05-31 | 2019-05-31 | Online monitoring system of air valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220041A (en) * | 2019-05-31 | 2019-09-10 | 武汉大禹阀门股份有限公司 | A kind of on-line monitoring method and system of air valve |
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2019
- 2019-05-31 CN CN201920814729.0U patent/CN210461908U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220041A (en) * | 2019-05-31 | 2019-09-10 | 武汉大禹阀门股份有限公司 | A kind of on-line monitoring method and system of air valve |
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