CN220399833U - Remote intelligent control circuit for foundation pit water level - Google Patents
Remote intelligent control circuit for foundation pit water level Download PDFInfo
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- CN220399833U CN220399833U CN202320652119.1U CN202320652119U CN220399833U CN 220399833 U CN220399833 U CN 220399833U CN 202320652119 U CN202320652119 U CN 202320652119U CN 220399833 U CN220399833 U CN 220399833U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 188
- 239000000523 sample Substances 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 abstract 1
- 238000009412 basement excavation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of foundation pit dewatering monitoring, and solves the problems that the inspection efficiency of the working condition of a water pump is low and the condition in a dewatering well cannot be mastered in time. The coil of the first time relay KT1 and the coil of the second time relay KT2 are connected in parallel and then connected with a normally open contact of the first water level relay KA1 in series to form a first branch; the electrified time-delay normally open contact of the first time relay KT1 is connected in parallel with the auxiliary normally open contact of the contactor KM1 and then connected in series with a coil of the contactor KM1 to form a second branch; the energizing time-delay normally open contact of the second time relay KT2 is connected in series with the alarm to form a third branch; one end of the first branch, one end of the second branch and one end of the third branch are connected in parallel, and the other end of the first branch, the second branch and the third branch are connected with one end of the power supply through normally closed contacts of the second water level relay KA 2. Remote water level monitoring and control of the foundation pit water well are realized through a water level controller, a time relay and an alarm.
Description
Technical Field
The utility model belongs to the technical field of foundation pit dewatering monitoring, and particularly relates to a remote intelligent control circuit for a foundation pit water level.
Background
Underground engineering construction, mainly foundation ditch excavation, in the excavation process, because groundwater's existence has serious security threat to the foundation ditch excavation. Particularly, the water level of underground water is reduced by a water pump before excavation of a deep and large foundation pit, and foundation pit dewatering is carried out. The water pumping test is required to be strictly carried out before the foundation pit is subjected to dewatering and during the investigation, the water level of the pressure-bearing water is required to be strictly controlled in the process of the test and the foundation pit dewatering, and excessive dewatering or insufficient dewatering can cause great hidden trouble. Excessive precipitation can seriously influence the surrounding environment and cause ground subsidence, and insufficient precipitation influences the foundation pit excavation safety. Particularly in the process of excavating a large number of ultra-deep foundation pits, the foundation pit dewatering and water pumping test water level, water quantity and sedimentation control are particularly important.
According to the traditional foundation pit dewatering control process, a dewatering manager needs to check the working condition of the water pump for 24 hours, so that the checking efficiency is low and the condition in a dewatering well cannot be mastered in time.
Disclosure of Invention
The utility model provides a remote intelligent control circuit for the water level of a foundation pit, which aims to solve the problems that the existing water pump management personnel needs to check the working condition of the water pump for 24 hours, the checking efficiency is low and the condition in the water pump well cannot be mastered in time.
The utility model is realized by adopting the following technical scheme: the foundation pit water level remote intelligent control circuit comprises a contactor KM1, a first time relay KT1, a second time relay KT2, a first water level relay KA1, a second water level relay KA2, a water pump motor M, a water level controller, a first water level sensing probe and a second water level sensing probe, wherein a coil of the first time relay KT1 and a coil of the second time relay KT2 are connected in parallel and then connected in series with a normally open contact of the first water level relay KA1 to form a first branch; the electrified time-delay normally open contact of the first time relay KT1 is connected in parallel with the auxiliary normally open contact of the contactor KM1 and then connected in series with a coil of the contactor KM1 to form a second branch; the energizing time-delay normally open contact of the second time relay KT2 is connected in series with the alarm to form a third branch; one end of the first branch, the second branch and the third branch are connected in parallel, and then the other end of the first branch is connected with one end of the power supply, and the other end of the first branch is connected with the other end of the power supply through a normally closed contact of the second water level relay KA 2; the water level controller receives water level signals acquired by the first water level sensing probe and the second water level sensing probe and controls coils of the first water level relay KA1 or the second water level relay KA2 to be powered on or powered off; a group of main normally open contacts of the contactor KM1 are connected between the water pump motor M and the three-phase power supply.
Preferably, the first water level sensing probe is positioned at a high water level elevation of the foundation pit water well, and transmits collected water level signals exceeding the high water level elevation to a water level controller, and the water level controller first water level relay KA1 coil is powered; the second water level sensing probe is positioned at the low water level elevation of the foundation pit water well and transmits the collected water level signal lower than the low water level elevation to the water level controller, and the water level controller controls the KA2 coil of the second water level relay to obtain electricity; the power-on delay time of the first time relay KT1 is preset water pump delay starting time, and the power-on delay time of the second time relay KT2 is preset high water level overtime alarm time.
Preferably, a main switch SB1 and a fuse FU are connected in series between the normally closed contact of the second water level relay KA2 and the power supply.
Compared with the prior art, the utility model has the beneficial effects that:
1. the system realizes remote water level monitoring and control of the foundation pit water well through the contactor, the water level controller, the time relay and the alarm, and can immediately master the running condition of the water pump and the water level information of the foundation pit water well.
2. In the system, the delay starting time of the water pump is set through the delay controller, after the water pump reaches a high water level, the water pump starts to work again after 1 delay starting time of the water pump, so that the water pump is prevented from being damaged due to frequent starting and stopping, and the cost is saved.
3. In the system, whether the water pump works normally is judged through the duration time of the high water level signal, and an early warning signal is sent to the remote terminal through the alarm once the water pump cannot work normally, so that the fault problem of the water pump can be found and solved in a targeted manner.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a main circuit wiring diagram of the present embodiment;
fig. 2 is a circuit wiring diagram at the water pump motor of the present embodiment;
fig. 3 is a schematic diagram of the water level controller of the present embodiment collecting and outputting signals.
Detailed Description
Technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the examples of this utility model without making any inventive effort, are intended to be within the scope of this utility model.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are merely for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the appended claims, and any structural modifications, proportional changes, or dimensional adjustments, which may be made by those skilled in the art, should fall within the scope of the present disclosure without affecting the efficacy or the achievement of the present utility model, and it should be noted that, in the present disclosure, relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The present utility model provides an embodiment:
as shown in fig. 1 and 2, a remote intelligent control circuit for foundation pit water level comprises a contactor KM1, a first time relay KT1, a second time relay KT2, a first water level relay KA1, a second water level relay KA2, a water pump motor M, a water level controller, a first water level sensing probe and a second water level sensing probe, wherein a coil of the first time relay KT1 and a coil of the second time relay KT2 are connected in parallel and then connected in series with a normally open contact of the first water level relay KA1 to form a first branch; the electrified time-delay normally open contact of the first time relay KT1 is connected in parallel with the auxiliary normally open contact of the contactor KM1 and then connected in series with a coil of the contactor KM1 to form a second branch; the energizing time-delay normally open contact of the second time relay KT2 is connected in series with the alarm to form a third branch; one end of the first branch, the second branch and the third branch are connected in parallel, and then the other end of the first branch is connected with one end of the power supply, and the other end of the first branch is connected with the other end of the power supply through a normally closed contact of the second water level relay KA 2; the water level controller receives water level signals acquired by the first water level sensing probe and the second water level sensing probe and controls coils of the first water level relay KA1 or the second water level relay KA2 to be powered on or powered off; a group of main normally open contacts of the contactor KM1 are connected between the water pump motor M and the three-phase power supply. A main switch SB1 and a fuse FU are connected in series between the normally closed contact of the second water level relay KA2 and the power supply.
The power-on delay time of the first time relay KT1 is preset water pump delay starting time, and the power-on delay time of the second time relay KT2 is preset high water level overtime alarm time. The preset high water level overtime alarm time is longer than the preset water pump delay starting time.
As shown in fig. 3, the first water level sensing probe is positioned at the high water level elevation of the foundation pit water well, and transmits the collected water level signal exceeding the high water level elevation to the water level controller, and the water level controller first water level relay KA1 coil is powered on; the second water level sensing probe is positioned at the low water level elevation of the foundation pit water well and transmits the collected water level signal lower than the low water level elevation to the water level controller, and the water level controller controls the KA2 coil of the second water level relay to obtain electricity.
In the embodiment, the QDX1.5-32-0.75 submersible pump is adopted for pumping the foundation pit water well, the water level reaches the high water level water pump to start working, and the water level falls back to the low water level water pump to stop working.
The specific working principle is as follows:
when the water level reaches the high water level elevation, the first water level sensing probe transmits the collected signal exceeding the high water level to the water level controller, the water level controller outputs a high level signal to the first water level relay KA1, the coil of the first water level relay KA1 is controlled to be electrified, the normally open contact of the first water level relay KA1 is closed, the first time relay KT1 and the second time relay KT2 are electrified, the electrified time-delay normally open contact of the first time relay KT1 is closed after the preset water pump time delay starting time, the contactor KM1 is electrified, the main normally open contact of the contactor KM1 is closed, the water pump motor M is electrified, the water pump starts to pump water, and meanwhile, the auxiliary normally open contact of the contactor KM1 is electrified, so that the follow-up contactor KM1 is ensured to be electrified continuously;
after the preset high water level overtime alarm time, if the first water level sensing probe still can acquire a high water level signal, the power-on time-delay normally open contact of the second time relay KT2 is closed, the alarm is powered on, an alarm signal is sent, and a water fall manager goes to the site for maintenance according to the alarm signal. Judging whether the water pump works normally or not through the duration time of the high water level signal, sending an early warning signal to the remote terminal through the alarm once the water pump cannot work normally, wherein the early warning signal can comprise a precipitation well number, a precipitation well position and a fault reason, and reminding a manager of maintenance.
When the water pump works normally and the water level falls back to the low water level elevation, the second water level sensing probe transmits the collected signal lower than the low water level to the water level controller, the water level controller outputs a high-level signal to the second water level relay KA2 to control the second water level relay KA2 to be powered on, and the normally open contact of the second water level relay KA2 is disconnected, so that the whole circuit is powered off, and the water pump finishes working.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides a foundation ditch water level remote intelligent control circuit which characterized in that:
comprises a contactor KM1, a first time relay KT1, a second time relay KT2, a first water level relay KA1, a second water level relay KA2, a water pump motor M, a water level controller, a first water level sensing probe and a second water level sensing probe,
the coil of the first time relay KT1 and the coil of the second time relay KT2 are connected in parallel and then connected in series with a normally open contact of the first water level relay KA1 to form a first branch; the electrified time-delay normally open contact of the first time relay KT1 is connected in parallel with the auxiliary normally open contact of the contactor KM1 and then connected in series with a coil of the contactor KM1 to form a second branch; the energizing time-delay normally open contact of the second time relay KT2 is connected in series with the alarm to form a third branch;
one end of the first branch, the second branch and the third branch are connected in parallel, and then the other end of the first branch is connected with one end of the power supply, and the other end of the first branch is connected with the other end of the power supply through a normally closed contact of the second water level relay KA 2;
the water level controller receives water level signals acquired by the first water level sensing probe and the second water level sensing probe and controls coils of the first water level relay KA1 or the second water level relay KA2 to be powered on or powered off; a group of main normally open contacts of the contactor KM1 are connected between the water pump motor M and the three-phase power supply.
2. The foundation pit water level remote intelligent control circuit of claim 1, wherein: the first water level sensing probe is positioned at the high water level elevation of the foundation pit water well and transmits the collected water level signal exceeding the high water level elevation to the water level controller, and the water level controller first water level relay KA1 coil is powered;
the second water level sensing probe is positioned at the low water level elevation of the foundation pit water well and transmits the collected water level signal lower than the low water level elevation to the water level controller, and the water level controller controls the KA2 coil of the second water level relay to obtain electricity;
the power-on delay time of the first time relay KT1 is preset water pump delay starting time, and the power-on delay time of the second time relay KT2 is preset high water level overtime alarm time.
3. The foundation pit water level remote intelligent control circuit according to claim 2, wherein: a main switch SB1 and a fuse FU are connected in series between the normally closed contact of the second water level relay KA2 and the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320652119.1U CN220399833U (en) | 2023-03-29 | 2023-03-29 | Remote intelligent control circuit for foundation pit water level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320652119.1U CN220399833U (en) | 2023-03-29 | 2023-03-29 | Remote intelligent control circuit for foundation pit water level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220399833U true CN220399833U (en) | 2024-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320652119.1U Active CN220399833U (en) | 2023-03-29 | 2023-03-29 | Remote intelligent control circuit for foundation pit water level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220399833U (en) |
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- 2023-03-29 CN CN202320652119.1U patent/CN220399833U/en active Active
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