CN218847355U

CN218847355U - Cable trench monitoring device for transformer substation

Info

Publication number: CN218847355U
Application number: CN202223319284.XU
Authority: CN
Inventors: 陈才广; 徐方剑
Original assignee: Fuzhou Weisi Electric Power Survey And Design Co ltd
Current assignee: Fuzhou Weisi Electric Power Survey And Design Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-04-11
Anticipated expiration: 2032-12-09

Abstract

The utility model provides a transformer substation cable trench monitoring device, which comprises a cover plate for covering a cable trench, wherein a sealing ring is arranged between the cover plate and the cable trench, the left end of the lower surface of the cover plate is provided with a monitoring piece for monitoring the water level in the cable trench, the right end of the lower surface of the cover plate is provided with a pumping piece for pumping sewage in the cable trench to reduce the water level, and the middle part of the upper surface of the cover plate is provided with an air circulation piece for realizing the air circulation in the cable trench; the utility model discloses can realize monitoring transformer substation's cable pit water level.

Description

Cable trench monitoring device for transformer substation

Technical Field

The utility model relates to a cable pit water level monitoring technical field of transformer substation, especially a cable pit monitoring devices of transformer substation.

Background

At present, the following problems exist in the cable trench of the transformer substation. 1. The transformer substations are unattended, a centralized control center monitors a plurality of transformer substations, the transformer substations are dispersed in all places, and the work load of flood season inspection is large. 2. In a thunderstorm season, flood prevention inspection is needed to be carried out on the cable trench of each station respectively, other inspections are needed, the cable trenches of each station are distributed a lot and need to be inspected one by one, so that the workload and the working time of workers are greatly increased, the working intensity is increased, and the working efficiency is influenced. 3. At ordinary times, the cable trench cannot alarm to remind monitoring personnel when water leaks, and problems can be found only in routine inspection, so that great potential safety hazards exist. Generally, cable trenches of the existing transformer substation are distributed at all stations, although water level observation points exist, cable trench cover plates at all the stations need to be opened respectively, and observation is carried out by using a visual observation method. Only when the user is specially patrolled, the user can check one by one, and the monitoring cannot reach the full time period at ordinary times. The reason why the above phenomenon occurs is that: the inspection of the transformer substation basically depends on manual visual inspection, and the inspection is carried out according to the manual judgment of factors such as weather. The inspection workload in the signal period is large, and if the cover plate is turned over in rainy days, the personnel are easy to be injured.

Patent CN201310600403.5 discloses a power substation cable pit water level detection alarm device, including installing high water level detecting head and the low water level detecting head in the cable pit, the position of low water level detecting head is less than the position of high water level detecting head, and wherein, low water level detecting head is connected with low water level signal transmitter, and high water level detecting head is connected with high water level signal transmitter, and low water level signal transmitter and high water level signal transmitter carry out wireless connection with monitoring controller simultaneously. The disadvantages are that: the water level detecting head is arranged in a cable trench, a plurality of large generators, transformers and the like are arranged in a transformer substation, the accuracy of a tester is seriously influenced by magnetic fields formed by the generators and the transformers, more importantly, the water level detecting head and other precise detecting instruments are arranged underwater, the service life is conceivable, generally, the water level detecting head and other precise detecting instruments need to be overhauled once a month or two months, the fault rate is high, 10 faults occur for one year, the false alarm rate is high, and the false alarm rate is 40%.

Disclosure of Invention

In view of this, the utility model aims at providing a can realize carrying out the transformer substation's cable pit monitoring devices who monitors to transformer substation's cable pit water level.

The utility model discloses a following method realizes: the utility model provides a cable pit monitoring devices of transformer substation, is including being used for the lid to establish the apron of cable pit, be provided with the sealing washer between apron and the cable pit, apron lower surface left end is provided with the monitoring piece that is used for monitoring water level in the cable pit, apron lower surface right-hand member is provided with the piece that draws water that is used for taking out the interior sewage reduction water level of cable pit, the middle part is provided with the air cycle spare that is used for realizing air circulation in the cable pit on the apron.

Furthermore, the left end and the right end of the cover plate are fixed on the cable trench through bolts.

Further, the monitoring piece includes telescopic cylinder, apron lower surface left end is provided with telescopic cylinder, telescopic cylinder's telescopic link end is provided with the fixing base, the bar recess has been seted up on the fixing base, the bottom is provided with the buoy in the bar recess, the upper end inlays in the bar recess and is equipped with gravity sensor.

Further, it includes multisection telescopic cylinder to draw water a piece, apron lower surface right-hand member is provided with multisection telescopic cylinder, multisection telescopic cylinder's telescopic link end is provided with the supporting shoe, the right-hand member is provided with the suction pump in the apron, the mouth that draws water of suction pump is connected with the bellows, the bellows end inlays to establish to be fixed on the supporting shoe, the delivery port of suction pump is connected with the outlet pipe.

Further, the air circulation piece includes fixed box body, apron lower surface middle part is provided with fixed box body, just fixed box body sets up in the cable pit, equidistance inlays and is equipped with a plurality of air discharge fans on the fixed box body, fixed box body lower surface left end is provided with temperature sensor, fixed box body lower surface right-hand member is provided with humidity transducer, fixed box body upper surface left end is connected with the intake pipe, the air inlet of intake pipe passes the apron extends to the apron top, fixed box body upper surface right-hand member is connected with the outlet duct, the gas outlet of outlet duct passes the apron extends to the apron top, the air inlet of intake pipe with the gas outlet of outlet duct all is provided with the filter screen, the apron upper surface left end left and right sides all is provided with first bracing piece, just first bracing piece set up in both ends about the intake pipe, be provided with first weather shield on the first bracing piece, the apron upper surface right-hand member left and right sides all is provided with the second bracing piece, just the second bracing piece set up in both ends about the outlet duct, be provided with the second weather shield on the second bracing piece.

The beneficial effects of the utility model reside in that: the utility model discloses added monitoring piece, water pumping spare and air cycle spare in the device, make through the effect of monitoring piece, can realize monitoring effect to the water level in the cable pit in the transformer substation, avoid the water level too high, through the effect of water pumping spare, can in time take water out when the water level is too high, avoid appearing the infiltration, through the effect of air cycle spare, can circulate the gas in the cable pit, carry out data detection in the circulating process, can also discharge dangerous gases such as sedimentary marsh gas in the cable pit simultaneously, avoid the inside phenomenon such as marsh gas spontaneous combustion or explosion that appear of cable pit, the security that has promoted the cable pit; the utility model discloses simple structure, the material resources of can effectually using manpower sparingly improve work efficiency in the simple operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1, the present invention provides an embodiment: the utility model provides a cable pit monitoring devices of transformer substation, is including being used for covering apron 1 of establishing the cable pit, be provided with sealing washer 11 between apron 1 and the

cable pit

2, 1 lower surface left end of apron is provided with the monitoring piece 3 that is used for monitoring the water level in the

cable pit

2, 1 lower surface right-hand member of apron is provided with the piece 4 that draws water that is used for taking out the interior sewage of cable pit 2 and reduces the water level, the middle part is provided with air cycle spare 5 that is used for realizing the air current in the cable pit 2 on the apron 1. The monitoring of the water level in the cable trench 2 can be realized through the effect of the monitoring piece 3, when the water level is too high, the water in the cable trench 2 can be discharged in time through the water pumping piece 4, and the discharge of dangerous gases such as methane deposited in the cable trench can be realized through the effect of the air circulation piece 5.

Referring to fig. 1, in an embodiment of the present invention, the cover plate 1 is fixed to the cable trench 2 by bolts 12 at the left and right ends. So that the cover plate 1 can be fixed to the cable trench 2 by the action of the bolts 12.

Please continue to refer to fig. 1, in an embodiment of the present invention, the monitoring member 3 includes a telescopic cylinder 31, the left end of the lower surface of the cover plate 1 is provided with the telescopic cylinder 31, the telescopic rod end of the telescopic cylinder 31 is provided with a fixing seat 32, a bar-shaped groove 33 is formed on the fixing seat 32, the bottom end of the bar-shaped groove 33 is provided with a buoy 34, and a gravity sensor 35 is embedded in the bar-shaped groove 33 at the upper end. The feasible effect through telescopic cylinder 31 can drive fixing base 32 oscilaltion for fixing base 32 can immerse the different water levels in cable pit 2, begins to rise when the water level, and buoy 34 can float on the surface of water, and the water level when in cable pit 2 rises to gravity sensor 35 department, buoy 34 contact gravity sensor 35, and gravity sensor 35 receives the signal and begins to report to the police.

As shown in fig. 1, in an embodiment of the present invention, the water pumping member 4 includes a plurality of sections of telescopic cylinders 41, the right end of the lower surface of the cover plate 1 is provided with the plurality of sections of telescopic cylinders 41, the end of the telescopic rod of the plurality of sections of telescopic cylinders 41 is provided with a supporting block 42, the right end of the cover plate 1 is provided with a water pump 43, the water pumping port of the water pump 43 is connected with a corrugated pipe 44, the end of the corrugated pipe 44 is embedded and fixed on the supporting block 42, and the water outlet of the water pump 43 is connected with a water outlet pipe 45. The support blocks 42 can be driven to ascend and descend through the multiple sections of telescopic cylinders 41, so that the corrugated pipes 44 can ascend and descend, the corrugated pipes 44 can be in contact with the water surface in the cable trench 2 better, and water in the cable trench 2 is pumped out by starting the water suction pump 43.

Please continue to refer to fig. 1, in an embodiment of the present invention, the air circulation member 5 includes a fixed box 51, the middle of the lower surface of the cover plate 1 is provided with the fixed box 51, and the fixed box 51 is disposed in the cable trench 2, a plurality of exhaust fans 52 are embedded on the fixed box 51 at equal distances, the left end of the lower surface of the fixed box 51 is provided with a temperature sensor 53, the right end of the lower surface of the fixed box 51 is provided with a humidity sensor 54, the left end of the upper surface of the fixed box 51 is connected with an air inlet pipe 55, the air inlet of the air inlet pipe 55 passes through the cover plate 1 and extends to the top of the cover plate 1, the right end of the upper surface of the cover plate 1 is connected with an air outlet pipe 56, the air outlet of the air outlet pipe 56 passes through the cover plate 1 and extends to the top of the cover plate 1, the air inlet of the air inlet pipe 55 and the air outlet of the air outlet pipe 56 are both provided with a filter screen 57, the left and right sides of the upper surface of the cover plate 1 are provided with first support rods 58, and the first support rods 58 are disposed at the left and right ends of the cover plate 55, and right ends of the second support rods 6 are provided with a rain shielding plate 61. Make the effect through air discharge fan 52, can carry out the outside air in cable pit 2 through intake pipe 55, rethread outlet duct 56 exhausts, has just so realized the air cycle in the cable pit 2, through the effect of first dash board 59 and second dash board 61, can realize intake pipe 55 and outlet duct 56 hide the rain effect, avoid the rainwater to get into in the cable pit 2.

The utility model discloses well air discharge fan, temperature sensor, humidity transducer, suction pump, multisection telescopic cylinder, telescopic cylinder and gravity sensor are prior art, and the skilled person in the art has clearly been known, does not explain in detail here, the temperature sensor model can be LM-410, the humidity transducer model can be HS15P, the gravity sensor model can be MXC6255XC, but is not limited to this.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims

1. The utility model provides a transformer substation's cable pit monitoring devices which characterized in that: including being used for covering the apron of establishing the cable pit, be provided with the sealing washer between apron and the cable pit, apron lower surface left end is provided with the monitoring piece that is used for monitoring water level in the cable pit, apron lower surface right-hand member is provided with the piece of drawing water that is used for taking out the interior sewage of cable pit and reduces the water level, the middle part is provided with the air cycle spare that is used for realizing air circulation in the cable pit on the apron.

2. The substation cable trench monitoring device of claim 1, wherein: the left end and the right end of the cover plate are fixed on the cable trench through bolts.

3. The substation cable trench monitoring device of claim 1, wherein: the monitoring piece comprises a telescopic cylinder, the left end of the lower surface of the cover plate is provided with the telescopic cylinder, the tail end of a telescopic rod of the telescopic cylinder is provided with a fixing seat, a bar-shaped groove is formed in the fixing seat, a buoy is arranged at the bottom end of the bar-shaped groove, and a gravity sensor is embedded in the upper end of the bar-shaped groove.

4. The substation cable trench monitoring device of claim 1, wherein: the water pumping piece comprises a plurality of sections of telescopic cylinders, the right end of the lower surface of the cover plate is provided with the plurality of sections of telescopic cylinders, the tail ends of telescopic rods of the plurality of sections of telescopic cylinders are provided with supporting blocks, water suction pumps are arranged at the right ends in the cover plate, water suction ports of the water suction pumps are connected with corrugated pipes, the tail ends of the corrugated pipes are embedded and fixed on the supporting blocks, and water outlets of the water suction pumps are connected with water outlet pipes.

5. The substation cable trench monitoring device of claim 1, wherein: the air circulation piece is including fixed box body, apron lower surface middle part is provided with fixed box body, just fixed box body sets up in the cable pit, equidistantly on the fixed box body inlay and be equipped with a plurality of air discharge fans, fixed box body lower surface left end is provided with temperature sensor, fixed box body lower surface right-hand member is provided with humidity transducer, fixed box body upper surface left end is connected with the intake pipe, the air inlet of intake pipe passes the apron extends to the apron top, fixed box body upper surface right-hand member is connected with the outlet duct, the gas outlet of outlet duct passes the apron extends to the apron top, the air inlet of intake pipe with the gas outlet of outlet duct all is provided with the filter screen, apron upper surface left end left and right sides all is provided with first bracing piece, just first bracing piece set up in both ends about the intake pipe, be provided with first weather shield on the first bracing piece, apron upper surface right-hand member left and right sides all is provided with the second bracing piece, just the second bracing piece set up in both ends about the outlet duct, be provided with the second weather shield on the second bracing piece.