CN209818339U - Automatic drainage system of cable tunnel - Google Patents
Automatic drainage system of cable tunnel Download PDFInfo
- Publication number
- CN209818339U CN209818339U CN201821954532.9U CN201821954532U CN209818339U CN 209818339 U CN209818339 U CN 209818339U CN 201821954532 U CN201821954532 U CN 201821954532U CN 209818339 U CN209818339 U CN 209818339U
- Authority
- CN
- China
- Prior art keywords
- cable tunnel
- tunnel
- automatic
- power supply
- contactor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Abstract
The utility model discloses a cable tunnel automatic drainage system, it includes immersible pump, drain pipe and automatic control circuit, the immersible pump is installed in the ponding hole of cable tunnel bottom, the one end and the immersible pump of drain pipe are connected, and the other end is located the cable tunnel outside, automatic control circuit includes ac contactor and installs the liquid level switch in cable tunnel bottom ponding hole, ac contactor's control coil and liquid level switch series connection back power supply voltage, ac contactor owner normally open contact concatenates in the power supply circuit of immersible pump motor. The utility model discloses but automated inspection tunnel ponding volume, when the water level reaches the automatic start immersible pump of setting for when high, with the ponding discharge in the cable tunnel, this system has realized tunnel drainage automation, and the consumption of not only reducible manpower has thoroughly eliminated the influence of human factor moreover, can guarantee the promptness of drainage, ensures the safe operation of tunnel cable.
Description
Technical Field
The utility model relates to a device that can automatic monitoring and discharge cable tunnel interior ponding belongs to drainage technical field.
Background
Many cables are laid in tunnels, the cable tunnels are generally located several meters underground, underground water and rainwater are easy to gather in the tunnels, so that the cables, cable heads, cross interconnection boxes and other cable accessories are soaked by water, if accumulated water in the tunnels cannot be discharged in time, the water inflow and the insulation performance of the cables are reduced, even blasting accidents are caused, and great economic loss is caused to users. At present, cable tunnel ponding generally all relies on immersible pump and interim fire control area to handle, and opening of immersible pump is stopped by staff manual control, and this kind of drainage method not only wastes time and energy, receives the human factor to influence moreover great, can not guarantee the promptness of drainage, can't ensure the safety of cable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cable tunnel automatic drainage system to prior art's drawback, when guaranteeing cable safety, reduce the consumption of manpower.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an automatic drainage system of cable tunnel, includes immersible pump, drain pipe and automatic control circuit in the constitution, the immersible pump is installed in the sump pit of cable tunnel bottom, the one end and the immersible pump of drain pipe are connected, and the other end is located the cable tunnel outside, automatic control circuit includes ac contactor and installs the liquid level switch in the sump pit of cable tunnel bottom, ac contactor's control coil and liquid level switch series connection back power supply voltage, ac contactor owner normally open contact concatenates in the power supply circuit of immersible pump motor.
Above-mentioned automatic drainage system in cable tunnel still includes manual control device in the constitution, manual control device includes start button, stop button and change over switch, change over switch's a pair of contact and liquid level switch series connection, another to connect in between ac contactor's control coil and power behind the normally closed contact of stop button and start button's normally open contact series connection, the first supplementary normally open contact of ac contactor and start button's normally open contact parallel connection.
The automatic drainage system for the cable tunnel further comprises an operation signal lamp and a stop signal lamp, the operation signal lamp is connected with the power supply through a second auxiliary normally-open contact of the alternating current contactor, and the stop signal lamp is connected with the power supply through an auxiliary normally-closed contact of the alternating current contactor.
In the automatic drainage system for the cable tunnel, an air switch is arranged in a power supply loop of the submersible pump motor.
The utility model discloses but automated inspection tunnel ponding volume, when the water level reaches the automatic start immersible pump of setting for when high, with the ponding discharge in the cable tunnel, this system has realized tunnel drainage automation, and the consumption of not only reducible manpower has thoroughly eliminated the influence of human factor moreover, can guarantee the promptness of drainage, ensures the safe operation of tunnel cable.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of the installation of the present invention;
FIG. 2 is an electrical schematic of the primary circuit of the submersible pump;
fig. 3 is an electrical schematic of the control loop.
The figures are labeled as follows: 1. the system comprises a control box, 2, a drain pipe, 3, a submersible pump, M, a submersible pump motor, KM, an alternating current contactor, KM-1, a main normally open contact of the alternating current contactor, KM-2, a first auxiliary normally open contact of the alternating current contactor, KM-3, a second auxiliary normally open contact of the alternating current contactor, KM-4, an auxiliary normally closed contact of the alternating current contactor, QF, an air switch, HR, an operation signal lamp, HG, a stop signal lamp, TA, a start button, QA, a stop button, SA, a change-over switch, K, a liquid level switch, RD and a safety.
Detailed Description
Referring to fig. 1, 2 and 3, the present invention mainly includes a submersible pump 3, a drain pipe 2, an ac contactor KM, an air switch QF, an operation signal lamp HR, a stop signal lamp HG, a start button TA, a stop button QA, a change-over switch SA, a liquid level switch K, and a safety RD. Except that immersible pump 3 and liquid level switch K place in the ponding hole in the tunnel, all other electrical parts are all installed in control box 1, and the control box is fixed in the eminence, is convenient for fix.
The system adopts an alternating current 380V power supply, an air switch and an alternating current contactor are selected according to the power of the submersible pump 3, and a drain pipe is led out to a sewer opening outside the tunnel.
Change over switch SA is equipped with manual, maintenance, automatic three fender position, and auxiliary contact 1 and 2 switch-on when being in manual fender, and auxiliary contact 3 and 4 switch-on when being in automatic fender do not all put through between four auxiliary contact when being in maintenance fender.
In operation, the air switch QF of the main circuit is closed, the switch SA on the control box panel is switched to the automatic position, and the switch inner auxiliary contacts 3 and 4 are closed.
When water leakage occurs inside the tunnel, water flows into the water accumulation pit, when the water level in the water accumulation pit at the bottom of the tunnel reaches a certain height, the auxiliary contact inside the floating ball type liquid level switch K is closed, so that a control coil of an alternating current contactor KM in the control box is electrified, a main normally open contact KM-1 of the alternating current contactor is closed, a power supply of a submersible pump motor M is switched on, and the submersible pump automatically drains water.
When the water level in the tunnel sump is reduced to a certain degree, the auxiliary contact inside the floating ball type liquid level switch K is disconnected, so that the control coil of the alternating current contactor KM in the control box is powered off, the power supply of the submersible pump motor M is disconnected, and the submersible pump stops automatically.
The automatic drainage system can greatly improve the operation efficiency and reduce the labor cost.
Claims (3)
1. An automatic drainage system of a cable tunnel is characterized by comprising a submersible pump (3), a drain pipe (2) and an automatic control circuit, wherein the submersible pump (3) is installed in a sump at the bottom of the cable tunnel, one end of the drain pipe (2) is connected with the submersible pump (3), the other end of the drain pipe is located outside the cable tunnel, the automatic control circuit comprises an alternating current contactor (KM) and a floating ball type liquid level switch (K) installed in the sump at the bottom of the cable tunnel, a control coil of the alternating current contactor (KM) is connected with a power supply voltage after being connected with the floating ball type liquid level switch (K) in series, and a main normally open contact (KM-1) of the alternating current contactor is connected in a power supply loop of a submersible pump motor (; the automatic control device comprises a starting button (TA), a stopping button (QA) and a change-over Switch (SA), wherein one pair of contacts of the change-over Switch (SA) is connected with a floating ball type liquid level switch (K) in series, the other pair of contacts is connected with a normally closed contact of the stopping button (QA) and a normally open contact of the starting button (TA) in series and then is connected between a control coil of an alternating current contactor (KM) and a power supply, and a first auxiliary normally open contact (KM-2) of the alternating current contactor is connected with the normally open contact of the starting button (TA) in parallel.
2. The automatic cable tunnel drainage system as claimed in claim 1, wherein the automatic cable tunnel drainage system further comprises an operation signal lamp (HR) and a shutdown signal lamp (HG), the operation signal lamp (HR) is connected with a power supply through a second auxiliary normally open contact (KM-3) of the ac contactor, and the shutdown signal lamp (HG) is connected with the power supply through an auxiliary normally closed contact (KM-4) of the ac contactor.
3. The automatic cable tunnel drainage system as claimed in claim 2, wherein an air switch (QF) is arranged in a power supply loop of the submersible pump motor (M).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821954532.9U CN209818339U (en) | 2018-11-26 | 2018-11-26 | Automatic drainage system of cable tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821954532.9U CN209818339U (en) | 2018-11-26 | 2018-11-26 | Automatic drainage system of cable tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818339U true CN209818339U (en) | 2019-12-20 |
Family
ID=68868664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821954532.9U Expired - Fee Related CN209818339U (en) | 2018-11-26 | 2018-11-26 | Automatic drainage system of cable tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209818339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412802A (en) * | 2021-12-20 | 2022-04-29 | 国网福建省电力有限公司 | Automatic protection device of movable submersible pump |
-
2018
- 2018-11-26 CN CN201821954532.9U patent/CN209818339U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412802A (en) * | 2021-12-20 | 2022-04-29 | 国网福建省电力有限公司 | Automatic protection device of movable submersible pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |