CN202433053U - Automatic drainage alarm device of cable trenches - Google Patents
Automatic drainage alarm device of cable trenches Download PDFInfo
- Publication number
- CN202433053U CN202433053U CN 201120518809 CN201120518809U CN202433053U CN 202433053 U CN202433053 U CN 202433053U CN 201120518809 CN201120518809 CN 201120518809 CN 201120518809 U CN201120518809 U CN 201120518809U CN 202433053 U CN202433053 U CN 202433053U
- Authority
- CN
- China
- Prior art keywords
- cable
- submersible pump
- liquid level
- water level
- sampling probe
- 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
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- Laying Of Electric Cables Or Lines Outside (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an automatic drainage alarm device of cable trenches. The automatic drainage alarm device is provided with a submersible pump and a control circuit, wherein the submersible pump is arranged in a cable trench drainage well, the control circuit is provided with a liquid level relay, a normally open contact connected with an alternating current contactor of the liquid level relay is connected in a starting circuit of the submersible pump in series, the liquid level relay is connected with a water level sampling probe which is arranged on a cable trench cover plate made of insulating materials, and a detection end of the water level sampling probe extends into the cable trench drainage well. Compared with the prior art, the automatic drainage alarm device of cable trenches has the advantages of being simple in structure, convenient to use, capable of pumping accumulated water in cable trenches automatically and guaranteeing ventilation and dryness inside cable trenches; having alarm functions, knowing accumulated water condition in real time, and guaranteeing the safety of power systems.
Description
Technical field
The utility model belongs to the power cable transmission technique field, is specifically related to the automatic draining warning device of a kind of cable duct.
Background technology
Cable bearer in transformer station's cable duct is placed with high-low pressure and various umbilical cable; The dry environment that ventilates of the normal service requirement of these cables, but in south rainy season, or after the summer heavy rain; Cable duct is because of impeded drainage; Very easily make cable duct inner product full water, all cables all are immersed in the water, the safe operation of electric system is brought hidden danger.
The utility model content
For solving the above-mentioned technical matters that prior art exists, the purpose of the utility model is to provide a kind of can get rid of cable trench water collecting automatically, keeps cable duct aeration-drying, ensures the automatic draining warning device of cable duct of safe operation of power system.
For realizing the foregoing invention purpose; The technical scheme that the utility model adopts: the automatic draining warning device of this cable duct; Have submersible pump and control circuit, it is characterized in that: said submersible pump is arranged in the cable duct gully, and said control circuit has liquid level relay; The normally open contact that liquid level relay connects A.C. contactor is connected in the start-up circuit of submersible pump; Said liquid level relay is connected with the water level sampling probe, and said water level sampling probe is arranged on the cable channel cover plate by the insulating material preparation, and the inside of cable duct gully is stretched in said water level sampling probe test side.
Said water level sampling probe has three, lays respectively at bottom, middle part and the top of gully, is used for the height of sensed water level.
The normally open contact of said A.C. contactor connects the warning device of background computer.
Adopt the beneficial effect of technique scheme: the automatic draining warning device of this cable duct moves the operation of controlling submersible pump by liquid level relay; The water level of gully in the water level sampling probe detection streamer ditch that liquid level relay connects; When the water flooding water level sampling probe in the gully; The action of liquid level relay control A.C. contactor, the normally open contact that is serially connected in the A.C. contactor in the submersible pump start-up circuit is closed, and submersible pump starts operation; Draw water, the ponding in the cable duct flows in the gully.When the water level of cable duct gully was lower than the water level sampling probe, do not have ponding in the cable duct this moment yet, the liquid level relay action; Contact is a normally open; Submersible pump stops pumping, and accomplishes the task of drawing water, thereby has realized drawing water automatically; Keep the aeration-drying in the cable duct, ensured the safe operation of electric system.The normally open contact of said A.C. contactor connects the warning device of background computer; When the operation of liquid level relay action submersible pump, the normally open contact of A.C. contactor triggers the warning device of background computer and reports to the police, thereby understands cable duct inner product regimen condition immediately; Convenient directly perceived, be convenient to the staff and patrol and examine.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done into detailed explanation on.
Fig. 1 is the automatic draining warning device of a cable duct schematic diagram.
Embodiment
The automatic draining warning device of cable duct as shown in Figure 1; Have submersible pump 5 and control circuit, control circuit has liquid level relay 7, and model is JYB714 type AC220V; The 1st, 8 terminations of liquid level relay 7 connect power supply; The 3rd termination of liquid level relay 7 connects A.C. contactor 6, and 2 normally open contacts 2 of A.C. contactor 6 are serially connected in the start-up circuit of submersible pump, and the input end of start-up circuit is connected with air switch 1; Model is 220V 40A; Another normally open contact 3 of A.C. contactor 6 connects the warning device 4 of background computer, and 5,6,7 terminations of liquid level relay 7 connect water level sampling probe 10,11,12 respectively, and the water level sampling probe is arranged on the cable channel cover plate 8 of insulating material preparation; Water level sampling probe 10,11,12 input ends lay respectively at bottom, middle part and the top of gully 9, are used for the height of sensed water level.
Claims (3)
1. automatic draining warning device of cable duct; Have submersible pump and control circuit; It is characterized in that: said submersible pump is arranged in the cable duct gully; Said control circuit has liquid level relay, and the normally open contact that liquid level relay connects A.C. contactor is connected in the start-up circuit of submersible pump, and said liquid level relay is connected with the water level sampling probe; Said water level sampling probe is arranged on the cable channel cover plate by the insulating material preparation, and the inside of cable duct gully is stretched in said water level sampling probe test side.
2. the automatic draining warning device of cable duct according to claim 1 is characterized in that: said water level sampling probe has three, lays respectively at bottom, middle part and the top of gully, is used for the height of sensed water level.
3. the automatic draining warning device of cable duct according to claim 1 is characterized in that: the normally open contact of said A.C. contactor connects the warning device of background computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120518809 CN202433053U (en) | 2011-12-13 | 2011-12-13 | Automatic drainage alarm device of cable trenches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120518809 CN202433053U (en) | 2011-12-13 | 2011-12-13 | Automatic drainage alarm device of cable trenches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433053U true CN202433053U (en) | 2012-09-12 |
Family
ID=46782493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120518809 Expired - Fee Related CN202433053U (en) | 2011-12-13 | 2011-12-13 | Automatic drainage alarm device of cable trenches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433053U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103031886A (en) * | 2012-12-11 | 2013-04-10 | 华北电力大学（保定） | Dispatching-automation water draining system of transformer substation deep well |
| CN103163921A (en) * | 2013-03-14 | 2013-06-19 | 河南省电力公司南阳供电公司 | Cable trench intelligent management system |
| CN103399249A (en) * | 2013-07-19 | 2013-11-20 | 宁夏新航信息科技有限公司 | Cable water accumulation part electric leakage prompting method |
| CN104820445A (en) * | 2015-04-07 | 2015-08-05 | 国家电网公司 | Cable trench water level monitoring alarm system |
-
2011
- 2011-12-13 CN CN 201120518809 patent/CN202433053U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103031886A (en) * | 2012-12-11 | 2013-04-10 | 华北电力大学（保定） | Dispatching-automation water draining system of transformer substation deep well |
| CN103163921A (en) * | 2013-03-14 | 2013-06-19 | 河南省电力公司南阳供电公司 | Cable trench intelligent management system |
| CN103399249A (en) * | 2013-07-19 | 2013-11-20 | 宁夏新航信息科技有限公司 | Cable water accumulation part electric leakage prompting method |
| CN104820445A (en) * | 2015-04-07 | 2015-08-05 | 国家电网公司 | Cable trench water level monitoring alarm system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20121213 |