CN214272369U - Pool liquid level monitoring device - Google Patents
Pool liquid level monitoring device Download PDFInfo
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- CN214272369U CN214272369U CN202022896986.9U CN202022896986U CN214272369U CN 214272369 U CN214272369 U CN 214272369U CN 202022896986 U CN202022896986 U CN 202022896986U CN 214272369 U CN214272369 U CN 214272369U
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Abstract
The application discloses a pool liquid level monitoring device, which comprises a liquid level switch, a 24V stabilized voltage power supply, a relay and an alarm, wherein the liquid level switch comprises a radio frequency admittance liquid level switch body and a reference electrode, a detection probe of the radio frequency admittance liquid level switch body is arranged at an interval with the reference electrode, and the reference electrode is grounded through a conductive piece; the 24V stabilized voltage supply is provided with two output power supply loops which are respectively an alarm source detection loop and an alarm loop, a contact of the radio frequency admittance liquid level switch body and a coil of the relay are connected in series in the alarm source detection loop, and the alarm is connected in series in the alarm loop; when the liquid level submerges the detection probe and the lower end face of the reference electrode, the radio frequency admittance liquid level switch body is switched on, and the coil of the relay is excited, so that the power supply loop of the alarm loop is switched on, and the alarm gives an alarm sound. The device has the advantages of high sensitivity and reliability, suitability for outdoor and sewage corrosion environments, better safety, difficult damage and the like.
Description
Technical Field
The utility model relates to a pond liquid level monitoring device.
Background
Most petrochemical enterprises have the effluent stations outside the plant area and far away from the plant area, and some effluent stations built into a brick-concrete structure of a longer age are not provided with a water storage tank liquid level measuring and alarming device, and the liquid level is completely observed and monitored by the naked eyes of operators. If heavy rain occurs at night, if an operator cannot find the liquid level rising in time and takes corresponding emergency treatment measures, the lifting pump room is easily flooded by water, and then the consequences of overflow of the water pool, motor failure and the like are caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a pool liquid level monitoring device, it includes liquid level switch, 24V constant voltage power supply, relay and siren, this liquid level switch includes radio frequency admittance liquid level switch body and assorted reference electrode, this radio frequency admittance liquid level switch body has a test probe, this test probe all extends along vertical direction parallel with reference electrode, and the interval sets up, this reference electrode passes through conductive piece ground connection, test probe and reference electrode stretch into in being detected the pool, and the lower terminal surface of test probe and reference electrode is as high as the highest settlement liquid level in being detected the pool;
the 24V stabilized voltage supply is provided with two output power supply loops, wherein one output power supply loop is used as an alarm source detection loop, a contact of the radio frequency admittance liquid level switch body and a coil of the relay are connected in series in the alarm source detection loop, the other output power supply loop is used as an alarm loop, and the alarm is connected in series in the alarm loop;
when the liquid level in the detected water pool rises to submerge the lower end face of the detection probe and the reference electrode, the radio frequency admittance liquid level switch body is switched on, and the coil of the relay is excited, so that the power supply loop of the alarm circuit is switched on, and the alarm gives out alarm sound. Specifically, the alarm is an electric bell.
In the application, a radio frequency admittance liquid level switch is adopted for liquid level detection, a detection probe of the radio frequency admittance liquid level switch can sense the change of impedance between the detection probe and a reference electrode, so that the measurement and the control of a material level are realized, and when no conductor exists between the detection probe and the reference electrode, the detection probe and the reference electrode jointly form a balanced bridge circuit and generate a stable oscillation signal; when the detection probe and the reference electrode are contacted with water simultaneously, reactance change between the detection probe and the reference electrode can be caused, then, a bridge circuit is unbalanced, oscillation signals are stopped being generated, the radio frequency admittance liquid level switch is switched on, the relay contact is switched on and communicated, so that the output power line of the relay is switched on, the alarm connected to the output power line sends out alarm sound, related managers are reminded, and the water in the detected water pool reaches the warning water level.
This pond liquid level monitoring device's preparation, installation are simple, and the cost is lower, and have higher sensitivity and reliability, are adapted to open-air and sewage corrosion environment, and metal or non-metal plastic brick mixes pond liquid level and can both measure, compares in current floater formula liquid level switch, has better security, advantage such as not fragile.
Further, in order to turn off the alarm, an alarm switch is also connected in series on the output power line and used for manually turning on and off the alarm.
Further, the 24V regulated power supply is connected to an external 220V power supply via an air switch for stable power supply.
Specifically, a steel frame is installed on the wall of the detected water pool, a connecting flange is installed on the steel frame, the reference electrode is welded on the connecting flange, and the radio frequency admittance liquid level switch is detachably installed on the connecting flange. The design enables the reference electrode to be conveniently grounded without providing a separate grounding wire.
Further, in order to avoid accidental alarm caused by contact between the detection probe and the reference electrode due to accidental touch in the using process, the pool liquid level monitoring device further comprises an insulation limiting block, wherein the insulation limiting block is fixedly connected to the detection probe and the reference electrode, so that the detection probe and the reference electrode are kept in a spaced state.
In order to improve the corrosion resistance, the detection probe and the reference electrode are both made of stainless steel materials.
Furthermore, a water pump is installed at the side of the detected water pool, a contact of the relay is introduced into a starting control loop of the water pump, when the liquid level in the detected water pool rises to submerge the detection probe and the lower end face of the reference electrode, the radio frequency admittance liquid level switch body is switched on, the contact of the relay acts to trigger the starting control loop of the water pump to automatically start the water pump, and the water in the detected water pool is discharged. After the contact of the relay is introduced into the starting control loop of the water pump, the relay can be used for automatically starting the water pump, and the workload of operators is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of a control loop.
Detailed Description
Referring to fig. 1 and 2, a pool liquid level monitoring device comprises a liquid level switch 10, a 24V regulated power supply 43, a relay 44 and an alarm 46, wherein the liquid level switch 10 comprises a radio frequency admittance liquid level switch 20 and a reference electrode 31, the radio frequency admittance liquid level switch body 20 is provided with a detection probe 21, the detection probe 21 and the reference electrode 31 both extend in parallel along the vertical direction and are arranged at intervals, the detection probe and the reference electrode extend into a detected pool, and the lower end surfaces of the detection probe and the reference electrode are as high as the highest set liquid level of the detected pool 100.
Specifically, in the present embodiment, the detection probe 21 and the reference electrode 31 are both made of stainless steel. A steel frame 34 is arranged on the wall of the detected pool, a connecting flange 33 is arranged on the steel frame 34, the reference electrode 31 is welded on the connecting flange 33, and the mounting flange 22 of the radio frequency admittance liquid level switch is detachably arranged on the connecting flange 33 by bolts. The reference electrode is grounded through the connection flange 33 and the steel frame 34, so that the connection flange 33 and the steel frame 34 are formed as conductive members, i.e., the reference electrode is grounded through the conductive members.
Two through holes are formed in the insulating limiting block 32, and the detection probe and the reference electrode respectively penetrate through one of the through holes, so that the detection probe and the reference electrode are kept in a spaced state. In this embodiment, the insulating restriction block is a rubber block.
The 24V regulated power supply 43 provides two output power supply loops, one of which serves as an alarm source detection loop 47 in which contacts of the body of the rf admittance level switch and coils of the relay are connected in series, the other serves as an alarm loop 48 in which an alarm 46 is connected in series. The 24V regulated power supply 43 is connected to an external 220V power supply 41 via an air switch 42. In this embodiment, the alarm is an electric bell.
When the liquid level 110 in the detected water pool rises to submerge the detection probe and the lower end face of the reference electrode, the radio frequency admittance liquid level switch body is switched on, so that the loop of the alarm is switched on, and the alarm gives an alarm sound.
The detection probe of the radio frequency admittance liquid level switch body can sense the change of reactance between the detection probe and the reference electrode, so that the measurement and control of the material level are realized, and when no conductor exists between the detection probe and the reference electrode, a detection bridge circuit maintains a balance; when the detection probe and the reference electrode are simultaneously contacted with water, the impedance between the detection probe and the reference electrode is changed, so that the balance of the original bridge circuit is broken, the output of the bridge circuit is changed, and the radio frequency admittance liquid level switch body is switched on and the relay is excited.
An alarm switch 52 is also connected in series to the alarm circuit 48, and the alarm switch 52 is used to turn on and off the alarm 46.
A water pump 80 is arranged at the side of the detected pool, the contact of the relay 44 is connected to the starting control loop 45 of the water pump, when the liquid level in the detected pool rises to submerge the lower end face of the detection probe and the reference electrode, the radio frequency admittance liquid level switch body is switched on, the contact of the relay is closed, the starting control loop of the water pump is driven to act, the water pump is started, and the water in the detected pool is discharged.
Claims (8)
1. A pool liquid level monitoring device is characterized by comprising a liquid level switch, a 24V stabilized voltage power supply, a relay and an alarm, wherein the liquid level switch comprises a radio frequency admittance liquid level switch body and a matched reference electrode, the radio frequency admittance liquid level switch body is provided with a detection probe, the detection probe and the reference electrode extend in parallel along the vertical direction and are arranged at intervals, the reference electrode is grounded through a conductive piece, the detection probe and the reference electrode extend into a detected pool, and the lower end surfaces of the detection probe and the reference electrode are as high as the highest set liquid level of the detected pool;
the 24V stabilized voltage supply is provided with two output power supply loops, wherein one output power supply loop is used as an alarm source detection loop, a contact of the radio frequency admittance liquid level switch body and a coil of the relay are connected in series in the alarm source detection loop, the other output power supply loop is used as an alarm loop, and the alarm is connected in series in the alarm loop;
when the liquid level in the detected water pool rises to submerge the lower end face of the detection probe and the reference electrode, the radio frequency admittance liquid level switch body is switched on, and the coil of the relay is excited, so that the power supply loop of the alarm circuit is switched on, and the alarm gives out alarm sound.
2. The pool liquid level monitoring device of claim 1, wherein an alarm switch is further connected in series with the output power line, and the alarm switch is used for manually turning on and off the alarm.
3. A pool level monitoring apparatus according to claim 1 in which the alarm is an electric bell.
4. The pool level monitor of claim 1, wherein the 24V regulated power supply is connected to an external 220V power supply via an air switch.
5. The pool level monitoring device of claim 1,
the wall of the detected water pool is provided with a steel frame, the steel frame is provided with a connecting flange, the reference electrode is welded on the connecting flange, and the radio frequency admittance liquid level switch is detachably arranged on the connecting flange.
6. The pool level monitoring device of claim 1,
the device also comprises an insulation limiting block which is fixedly connected to the detection probe and the reference electrode to keep the detection probe and the reference electrode in a spaced state.
7. The pool liquid level monitoring device of claim 1, wherein the detection probe and the reference electrode are made of stainless steel material.
8. The pool liquid level monitoring device of claim 1, wherein a water pump is installed beside the detected pool, a contact of the relay is introduced into a starting control loop of the water pump, when the liquid level in the detected pool rises to submerge the detection probe and the lower end face of the reference electrode, the radio frequency admittance liquid level switch body is switched on, and the contact of the relay acts to trigger the starting control loop of the water pump to automatically start the water pump to discharge the water in the detected pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022896986.9U CN214272369U (en) | 2020-12-04 | 2020-12-04 | Pool liquid level monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022896986.9U CN214272369U (en) | 2020-12-04 | 2020-12-04 | Pool liquid level monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN214272369U true CN214272369U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022896986.9U Active CN214272369U (en) | 2020-12-04 | 2020-12-04 | Pool liquid level monitoring device |
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| CN (1) | CN214272369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718165A (en) * | 2022-03-23 | 2022-07-08 | 箭牌家居集团股份有限公司 | Flushing and noise reduction method for closestool, control panel and noise reduction closestool |
-
2020
- 2020-12-04 CN CN202022896986.9U patent/CN214272369U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718165A (en) * | 2022-03-23 | 2022-07-08 | 箭牌家居集团股份有限公司 | Flushing and noise reduction method for closestool, control panel and noise reduction closestool |
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