CN110924504A - Intelligent monitoring and automatic drainage system for cable layer accumulated water of transformer substation - Google Patents
Intelligent monitoring and automatic drainage system for cable layer accumulated water of transformer substation Download PDFInfo
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- CN110924504A CN110924504A CN201910944662.7A CN201910944662A CN110924504A CN 110924504 A CN110924504 A CN 110924504A CN 201910944662 A CN201910944662 A CN 201910944662A CN 110924504 A CN110924504 A CN 110924504A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 283
- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000007667 floating Methods 0.000 claims description 36
- 239000010802 sludge Substances 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 238000003475 lamination Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 56
- 230000003287 optical effect Effects 0.000 description 8
- 239000012535 impurity Substances 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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Abstract
The invention relates to the technical field of auxiliary equipment of transformer substations, in particular to an intelligent monitoring and automatic drainage system for accumulated water in a cable layer of a transformer substation. The substantial effects of the invention are as follows: accumulated water in the cable layer is detected through the liquid level meter, and accumulated water data are sent to a far end through the communication module, so that timeliness and reliability of cable lamination water monitoring are improved; the water pump seat enables the water pump to be separated from long-term contact with a water body, corrosion of water pump parts is avoided, and maintenance and fault probability of the water pump are reduced.
Description
Technical Field
The invention relates to the technical field of auxiliary equipment of a transformer substation, in particular to an intelligent monitoring and automatic drainage system for cable layer accumulated water of the transformer substation.
Background
The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system. The transformer substation takes the roles of power junction and dispatching, and the transformer substation breaks down, which brings about a large range of influence and even leads to unstable operation of the power grid. Therefore, the transformer substation needs to guarantee high working reliability. In practice, the reliability of the work of the transformer substation is ensured by regularly polling the transformer substation equipment. During the inspection tour, the cable layer topography of a common substation is found to be about 1 meter lower than the ground plane due to design and engineering requirements. The cable layer is easy to generate water accumulation due to the influence of objective reasons such as blocking mud seepage at the cable outlet, cracking and seepage of the ground and the wall, and the like, so that the safety of the cable at the cable layer is threatened, and the cable is particularly serious in a plurality of old substations. The cable can cause serious consequences after being soaked in water for a long time, such as cable mildew and aging, cable insulation influence, and serious accidents such as short circuit, tripping and even explosion, particularly the fault rate of the cable intermediate joint soaked in water can be increased by 300%. Threatens the safe operation of the high-voltage switch above the cable. Air humidity is high in rainwater season, the cable is laminated with water, the original severe operation environment is frosted on snow, the humidity even reaches 100%, and a high-voltage switch is easy to generate condensation and even explode. Therefore, water is accumulated in the cable layer for a long time, and the safe and stable operation of the transformer substation faces a great threat. The drainage device in the prior art lacks the function of intelligent monitoring water level and automatic drainage. Because the transformer substation is large in scale, and the cable layer of the transformer substation can continuously accumulate sundries and sludge, the drainage device in the prior art cannot cope with the sundries and the sludge, and faults are easily caused by the sundries and the sludge. And the water pump soaked in water for a long time can be corroded gradually. Therefore, a monitoring and drainage system suitable for the use of the cable layer of the transformer substation needs to be developed.
Chinese patent CN104407634A, published 2015 year 3, 11 days, the water level monitoring system of transformer substation cable intermediate layer, water level monitoring system includes: the water level detection sensor is used for detecting the water level in the cable interlayer; the controller is provided with a signal input port and a first control signal output port, and the signal input port is electrically connected with the water level detection sensor; the contactor is electrically connected with the first control signal output port; and the draining pump is electrically connected with the contactor. According to the technical scheme, the water level in the cable interlayer of the transformer substation is monitored by the water level detection sensor, and after the water level reaches the warning water level, the controller controls the drainage pump to be started, so that the automation of drainage of the cable interlayer of the transformer substation is realized. But it does not solve the problem of high failure rate of drainage devices working in the cable layer for a long time.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical problem that a device suitable for monitoring and draining the cable layer of the transformer substation for a long time is not available at present. The intelligent monitoring and automatic drainage system for the cable lamination water of the transformer substation is suitable for long-term use and drainage is timely.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a transformer substation's cable layer ponding intelligent monitoring and automatic drainage system, includes level gauge, water pump, signal relay, alarm device, communication module and controller, the level gauge is installed in the cable layer of transformer substation, detects the cable in situ water level, and the water pump is installed in the cable layer, and the water pump leads to pipe with the intraformational ponding suction of cable to municipal drainage facility, and the water pump passes through signal relay and is connected with the power, and signal relay, level gauge, communication module and alarm device all are connected with the controller. Accumulated water in the cable layer is detected through the liquid level meter, accumulated water data are sent to the far end through the communication module, and timeliness and reliability of cable lamination water monitoring are improved.
Preferably, the liquid level meter comprises an input type liquid level meter, a protective net and a support, the support is installed at the bottom of the cable layer, the input type liquid level meter is installed on the support, the protective net is fixedly connected with the support, and the input type liquid level meter is located in the protective net. The protective net can prevent foreign matters from entering a measuring port of the input type liquid level meter, so that the measuring accuracy of the input type liquid level meter is improved.
Preferably, the cable protection net further comprises an air pump, the air pump is installed at the top of the cable layer, and an output port of the air pump is located in the protection net. Can blow away mud and debris in the protective screen through the air pump, improve the detection accuracy of input level gauge.
Preferably, the liquid level meter comprises an input type liquid level meter, an air pump and a support, the support is installed at the bottom of the cable layer, the input type liquid level meter is installed on the support, the air pump is installed at the top of the cable layer, and an output port of the air pump is located near the input type liquid level meter. Can blow away the mud and the debris near input level gauge through the air pump, improve the detection accuracy of input level gauge.
As preferred, still include mud thickness detection device, mud thickness detection device includes laser emitter, a plurality of laser receiver and mounting panel, the mounting panel is installed at the cable layer top, a plurality of laser receiver arranges and installs on the mounting panel, laser emitter install on the mounting panel and arrange the collineation with laser receiver, laser emitter laser outgoing direction and plummet direction have the contained angle and be partial to laser receiver one side, and laser emitter and a plurality of laser receiver all are connected with the controller. The control method of the sludge thickness detection device comprises the following steps: when the liquid level meter detects that the water level is 0, the laser transmitter is started periodically, and if no water is accumulated in the cable layer, the plurality of laser receivers cannot receive obvious laser signals due to absorption and diffuse reflection of the ground or sludge of the cable layer. When the cable layer begins to accumulate water and the cable layer has sludge, one laser receiver receives an obvious optical signal when the accumulated water just overflows the upper surface of the sludge, the laser receiver receiving the optical signal is related to the thickness of the sludge due to the inclined arrangement of the laser transmitter, and the thickness of the sludge can be judged according to the laser receiver receiving the optical signal through pre-calibration. As the water level of the accumulated water rises, the laser receiver receiving the optical signal changes. The thickness of the sludge in the cable layer can be mastered through the sludge thickness detection device, and guidance is provided for monitoring and pollution discharge work of the sludge in the cable layer.
Preferably, the water pump comprises a support ring, a water outlet, a motor and water pump blades, the lower portion of the support ring is in an inverted bell mouth shape, a strip-shaped water inlet notch is formed in the lower portion of the support ring along the circumference, a cylindrical tubular collecting portion is arranged in the middle of the support ring, the water outlet is arranged in the middle of the support ring and communicated with the collecting portion, the motor is fixedly arranged at the top of the support ring, an end cover is arranged at the top of the support ring, an output shaft of the motor extends into the lower portion of the support ring, the water pump blades are fixedly arranged on an output shaft of the motor, when the motor rotates, the water pump blades throw fluid into the collecting portion, and. The water pump blades can throw the water body into the collecting part to form positive pressure in the collecting part, so that the water body is discharged into municipal drainage facilities through the water pipe.
Preferably, the water pump further includes a second blade connected to the output shaft of the motor and located in the collecting portion, and the second blade is substantially in contact with an inner wall of the collecting portion. The second blade can prevent the water body of the collecting part from falling and flowing back when the water level of the accumulated water is lower.
Preferably, the water pump further comprises a water pump seat and a coupler, the tail end of an output shaft of a motor of the water pump is connected with the coupler, the water pump seat is provided with a square base body, a plurality of water hoses and impellers arranged on the base body, an upper cavity and a lower cavity which are vertically distributed are arranged in the base body, the upper cavity is cylindrical, the lower cavity is square, a coaxial round hole is processed in the middle of the bottom surface of the upper cavity, the upper cavity is communicated with the lower cavity through the round hole, a through hole for rotatably installing an impeller is processed at the top of the upper cavity, blades of the impeller are positioned in the upper cavity, a plurality of water outlet holes are processed at the top of the upper cavity along the circumference, the shaft of the impeller penetrates out of the base body, a shaft coupling is installed at the tail end of the shaft of the impeller, notches are processed around the lower cavity, and the outer walls of the notches extend, one end of the water band is connected with the connecting part, and the other end of the water band is placed on the ground of the cable layer. Because the water pump blade of water pump has certain height, lead to the ponding that the cable layer can not be drained completely to the water pump, and then lead to the water pump lower part to contact with the water all the time for the corrosion of water pump lower part. Through the water pump seat, the water body at a lower position can be conveyed to the water pump blades through the impeller, so that the water body at a lower water level can be discharged by the water pump, the water pump can be separated from the residual accumulated water, and the service life of the water pump is prolonged.
Preferably, the free end of the water hose is provided with a filter head, the inner edge of the water hose is rectangular, the filter head comprises a plurality of upper grid columns and a plurality of lower grid columns, the upper grid columns and the lower grid columns are fixedly connected to the upper edge and the lower edge of the water hose respectively, the upper grid columns and the lower grid columns are arranged in a staggered and abutted mode, and the abutting positions of the upper grid columns and the lower grid columns are in the middle. The filter head can block impurities from entering the water belt.
Preferably, the water hose further comprises a water inlet head, the water hose is a hollow cuboid, the free end of the water hose is closed, a plurality of notches are formed in two sides of the water hose, and the water inlet head is mounted on each notch; the water inlet head comprises a shell and a valve, two ends of the shell are open, one end of the shell is connected with the notch, the valve is installed at the other end of the shell and is closed by the valve, and the opening of the valve end installed on the shell faces downwards. When the air exists in the lower cavity, due to the centrifugal effect, the impeller can discharge part of the air, a certain vacuum degree is formed in the lower cavity, the valve strength is set to be capable of resisting the vacuum degree, when the accumulated water exists at the water inlet head, the accumulated water has the water pressure effect on the valve, the valve can be opened under the action of the water pressure and the atmospheric pressure, then the water body is sucked into the water band, the water level of the residual accumulated water in the cable layer can be reduced, more accumulated water is discharged through the water pump, the accumulated water is evaporated and dried more quickly, the high humidity in the cable layer is reduced, and the safety of the cable in the cable layer is improved.
Preferably, the water hose further comprises a water inlet head, the water hose is a hollow cuboid, the free end of the water hose is closed, a plurality of notches are formed in two sides of the water hose, and the water inlet head is mounted on each notch; the head of intaking includes casing and floating block, casing both ends opening, casing one end and breach are connected, and the processing of the casing other end has and is used for the joint the draw-in groove along the plummet direction of floating block, floating block along the activity joint of vertical direction in the draw-in groove, floating block covers the open region. When there is ponding in the head department of intaking, ponding has the buoyancy to the floating block to open the head of intaking, make the water can get into the hosepipe, when the head of intaking does not have ponding, the floating block seals the head of intaking, avoids the air constantly to get into.
Preferably, the floating block both ends expand, the flange inwards extends out of the draw-in groove lower extreme, the flange has elasticity, the floating block card is gone into the draw-in groove, and processing of casing installation floating block end bottom has two sealed shelves strip, sealed shelves strip parallel arrangement, two sealed shelves strip all with the floating block butt when the floating block is located its stroke bottommost. The gap between two sealed shelves strips can hold some tiny impurity, and when making the first position of intaking no water, the floating block is better to the first sealed effect of intaking.
Preferably, the top of the inner wall of the end of the shell installation floating block is flush with the top of the inner wall of the other end of the shell, and the bottom of the inner wall of the end of the shell installation floating block is lower than the bottom of the inner wall of the other end of the shell. The water body which enters the water belt can be prevented from leaking out of the water inlet head.
Preferably, the outlet aperture is inclined outwardly. When the ponding water level is higher, the rivers that the apopore erupted can form outside thrust to the floater of ponding surface of water, avoid it to get into the water pump.
Preferably, the water band has elasticity, and the length of the inner edge of the connecting end of the water band and the base is smaller than the length of the side corresponding to the connecting part of the base. The hose with elasticity is convenient to store.
Preferably, the water hose further comprises a pressure sensor, the water hose further comprises a plurality of sealing plugs, the shapes of the sealing plugs are matched with the openings on the two sides of the water hose, the plurality of water inlet heads are connected with part of the openings, and the rest openings are connected with the sealing plugs; the pressure sensor is arranged in the lower cavity of the base body and used for detecting the pressure of fluid in the lower cavity, and the pressure sensor is connected with the controller. The pressure sensor can detect the vacuum degree in the lower cavity, so that whether the water inlet head is closed or not is judged, and whether sludge exists in the cable layer or not can be judged in an auxiliary mode.
The substantial effects of the invention are as follows: accumulated water in the cable layer is detected through the liquid level meter, and accumulated water data are sent to a far end through the communication module, so that timeliness and reliability of cable lamination water monitoring are improved; the drop-in type liquid level meter has less maintenance requirements and can operate on a cable layer for a long time; the thickness of the sludge in the cable layer can be mastered through the sludge thickness detection device, and guidance is provided for monitoring and pollution discharge work of the sludge in the cable layer; the water pump can be separated from the long-term contact with the water body through the water pump seat, so that the water pump component is prevented from being corroded, and the maintenance and fault probability of the water pump are reduced.
Drawings
Fig. 1 is a schematic structural view of an intelligent accumulated water monitoring and automatic drainage system according to an embodiment.
FIG. 2 is a schematic view of a liquid level gauge according to an embodiment.
FIG. 3 is a schematic cross-sectional view of a water pump according to an embodiment.
Fig. 4 is a schematic structural diagram of a water pump according to an embodiment.
FIG. 5 is a schematic diagram of a water pump seat according to an embodiment.
FIG. 6 is a schematic view of an embodiment of a water pump and a water pump base.
Fig. 7 is a schematic view of a water inlet structure according to a second embodiment.
FIG. 8 is a schematic structural view of a three-sludge-thickness detecting apparatus according to an embodiment.
Wherein: 100. the water pump comprises a power supply, 200, a signal relay, 300, a water pump, 301, a motor, 302, a collecting part, 303, a support ring, 304, a water outlet, 305, water pump blades, 306, a water outlet hole, 307, a connecting part, 308, a lower cavity, 309, an impeller, 310, an upper cavity, 311, a water belt, 312, a water inlet head, 3121, a clamping groove, 3122, a floating block, 3123, a sealing baffle strip, 313, a water pump seat, 400, a controller, 500, an alarm device, 600, a communication module, 700, a liquid level meter, 701, a support, 702, a drop-in liquid level meter, 703, a protective net, 801, a laser transmitter, 802 and a laser receiver.
Detailed Description
The following provides a more detailed description of the present invention, with reference to the accompanying drawings.
The first embodiment is as follows:
the utility model provides a transformer substation's cable layer ponding intelligent monitoring and automatic drainage system, as shown in FIG. 1, this embodiment includes level gauge 700, water pump 300, signal relay 200, alarm device 500, communication module 600 and controller 400, level gauge 700 installs in the cable layer of transformer substation, detect the cable in-situ water level, water pump 300 installs in the cable layer, water pump 300 passes through the water pipe with the intraformational ponding suction of cable to municipal drainage facility, water pump 300 passes through signal relay 200 and is connected with power 100, signal relay 200, level gauge 700, communication module 600 and alarm device 500 all are connected with controller 400. Accumulated water in the cable layer is detected through the liquid level meter 700, accumulated water data are sent to a far end through the communication module 600, and timeliness and reliability of cable layer water monitoring are improved.
As shown in fig. 2, the liquid level meter 700 includes an input type liquid level meter 702, a protective net 703 and a bracket 701, the bracket 701 is installed at the bottom of the cable layer, the input type liquid level meter 702 is installed on the bracket 701, the protective net 703 is fixedly connected with the bracket 701, and the input type liquid level meter 702 is located in the protective net 703. The protective mesh 703 can block foreign matter from entering the measurement port of the drop-in level gauge 702, thereby improving the measurement accuracy of the drop-in level gauge 702. The air pump is installed at the top of the cable layer, and the output port of the air pump is located in the protective net 703. Sludge and sundries in the protective net 703 can be blown away by the air pump, so that the detection accuracy of the drop-in type liquid level meter 702 is improved.
As shown in fig. 3 and 4, the water pump 300 includes a support ring 303, a water outlet 304, a motor 301 and a water pump blade 305, the lower portion of the support ring 303 is in an inverted bell mouth shape, the lower portion of the support ring 303 is provided with a strip-shaped water inlet gap along the circumference, the middle portion of the support ring 303 is a cylindrical tubular collection portion 302, the water outlet 304 is installed in the middle portion of the support ring 303 and communicated with the collection portion 302, the motor 301 is fixedly installed at the top portion of the support ring 303, the top portion of the support ring 303 is provided with an end cover, an output shaft of the motor 301 extends into the lower portion of the support ring 303, the water pump blade 305 is fixedly installed on an output shaft of the motor 301, the water pump blade 305 throws fluid into the collection portion. The water pump blades 305 are capable of throwing the body of water into the collection portion 302 creating a positive pressure in the collection portion 302 thereby draining the body of water through a water pipe into a municipal drainage facility.
The water pump 300 further includes a second blade connected to an output shaft of the motor 301 and located in the collection portion 302, the second blade being substantially in abutment with an inner wall of the collection portion 302. The second blades can prevent the water of the collection portion 302 from falling and flowing back when the standing water level is low.
As shown in fig. 5, the end of the output shaft of the motor 301 of the water pump 300 is connected to a coupler, the water pump seat 313 includes a square base, a plurality of water hoses 311, and impellers 309 mounted on the base, the base includes an upper chamber 310 and a lower chamber 308 vertically distributed therein, the upper chamber 310 is cylindrical, the lower chamber 308 is square, a circular hole coaxial with the upper chamber 310 is formed in the middle of the bottom surface of the upper chamber 310, the upper chamber 310 is communicated with the lower chamber 308 through the circular hole, a through hole for rotatably mounting the impeller 309 is formed in the top of the upper chamber 310, the blades of the impeller 309 are located in the upper chamber 310, a plurality of water outlets 306 are formed in the top of the upper chamber 310 along the circumference, the water outlets 306 are inclined outward, the shaft of the impeller 309 penetrates through the base, the coupler is mounted at the end of the shaft of the impeller 309, notches are formed around the lower chamber 308, the other end of water hose 311 is placed on the cable layer ground. Because the water pump blade 305 of the water pump 300 has a certain height, the water pump 300 cannot completely drain accumulated water on the cable layer, and then the lower part of the water pump 300 is always in contact with the water body, so that the lower part of the water pump 300 is rusted. Through water pump seat 313, can be with the water of lower department, on water pump blade 305 was carried to impeller 309, make the water of lower water level also can be discharged by water pump 300, and then make water pump 300 break away from the contact with surplus ponding, prolong water pump 300's life.
The filter head is installed to hosepipe 311 free end, and the hosepipe 311 inner fringe is rectangular in shape, and the filter head includes grid post and grid post under a plurality of on a plurality of, goes up grid post and grid post down fixed connection respectively on hosepipe 311 and follows down, goes up the crisscross butt of grid post and arranges with grid post down, goes up grid post and grid post butt position down at the middle part. The filter head can block impurities from entering the water hose 311.
The water hose 311 has elasticity, and the length of the inner edge of the connecting end of the water hose 311 and the base body is smaller than the length of the side corresponding to the connecting part 307 of the base body. The hose 311 having elasticity is convenient to store. The water hose 311 further comprises a water inlet head 312, the water hose 311 is a hollow cuboid, the free end of the water hose 311 is closed, a plurality of gaps are formed in two sides of the water hose 311, and the water inlet head 312 is mounted on each gap; the water inlet head 312 comprises a housing and a valve, both ends of the housing are open, one end of the housing is connected with the notch, the valve is installed at the other end of the housing and the valve closes the other end of the housing, and the opening of the valve end of the housing is downward. When there is the air in lower chamber 308, because centrifugal action, impeller 309 can be with partial air discharge, form certain vacuum in lower chamber 308, set up valve intensity to can resist this vacuum, when there is ponding in head 312 department of intaking, because ponding has the water pressure effect to the valve, under water pressure and atmospheric pressure effect, can open the valve, and then inhale hosepipe 311 with the water, can make the intraformational surplus ponding water level of cable decline, discharge more ponding through water pump 300, make the faster evaporation of ponding dry, it is long when reducing the intraformational high humidity of cable, the security of the cable in the improvement cable layer. The water hose 311 also comprises a plurality of sealing plugs, the shapes of the sealing plugs are matched with the openings at the two sides of the water hose 311, a plurality of water inlet heads 312 are connected with part of the openings, and the rest openings are connected with the sealing plugs; a pressure sensor is mounted in the lower base chamber 308 to sense the fluid pressure in the lower chamber 308, and the pressure sensor is connected to the controller 400. The pressure sensor can detect the vacuum degree in the lower cavity 308, so as to judge whether the water inlet head 312 is well sealed, and can assist in judging whether sludge exists in the cable layer.
Example two:
in this embodiment, a further modification is performed on the basis of the first embodiment, as shown in fig. 7, in this embodiment, the water hose 311 further includes a water inlet head 312, the water hose 311 is a hollow cuboid, a free end of the water hose 311 is closed, two sides of the water hose 311 are provided with a plurality of notches, and the water inlet heads 312 are installed on the notches; the head 312 of intaking includes the casing and floats piece 3122, and the casing both ends opening, casing one end and breach are connected, and the processing of the casing other end has the draw-in groove 3121 along the plummet direction that is used for joint float piece 3122, and float piece 3122 along the movable joint of vertical direction in draw-in groove 3121, float piece 3122 covers the open region. When there is ponding in the head 312 department of intaking, ponding has buoyancy to floating block 3122 to open into water head 312, make the water can get into hosepipe 311, when the head 312 of intaking does not have ponding, floating block 3122 seals into water head 312, avoids the air constantly to get into.
The two ends of the floating block 3122 are expanded, the lower end of the clamping groove 3121 extends inwards to form a flange which has elasticity, the floating block 3122 is clamped into the clamping groove 3121, two sealing stop strips 3123 are processed at the bottom of the end of the shell installation floating block 3122, the sealing stop strips 3123 are arranged in parallel, and the two sealing stop strips 3123 are abutted against the floating block 3122 when the floating block 3122 is located at the lowest part of the stroke. The gap between the two sealing bars 3123 can accommodate some fine impurities, so that when the water inlet head 312 is in a water-free position, the floating block 3122 has a better sealing effect on the water inlet head 312. The top of the inner wall of the end of the shell installation floating block 3122 is flush with the top of the inner wall of the other end of the shell, and the bottom of the inner wall of the end of the shell installation floating block 3122 is lower than the bottom of the inner wall of the other end of the shell. The rest of the structure is the same as the first embodiment.
The technical scheme of the embodiment can prevent the water body which enters the water hose 311 from leaking out of the water inlet head 312. The liquid level meter 700 comprises an input type liquid level meter 702, an air pump and a support 701, the support 701 is installed at the bottom of a cable layer, the input type liquid level meter 702 is installed on the support 701, the air pump is installed at the top of the cable layer, and an output port of the air pump is located near the input type liquid level meter 702. Sludge and sundries near the input liquid level meter 702 can be blown away by the air pump, so that the detection accuracy of the input liquid level meter 702 is improved.
Example three:
this embodiment has carried out further change machine on the basis of embodiment one, as shown in fig. 8, this embodiment still includes that mud thickness detection device includes laser emitter 801, a plurality of laser receiver 802 and mounting panel, the mounting panel is installed at the cable layer top, a plurality of laser receiver 802 arranges and installs on the mounting panel, laser emitter 801 installs on the mounting panel and arranges the collineation with laser receiver 802, laser emitter 801 laser outgoing direction has the contained angle and incline to laser receiver 802 one side with the plummet direction, laser emitter 801 and a plurality of laser receiver 802 all are connected with controller 400. The control method of the sludge thickness detection device comprises the following steps: when the water level detected by the liquid level meter 700 is 0, the laser transmitter 801 is periodically started, and if no water is accumulated in the cable layer, the laser receivers 802 cannot receive obvious laser signals due to absorption and diffuse reflection of the ground or sludge of the cable layer. The rest of the structure is the same as the first embodiment. When the cable layer starts to accumulate water and sludge exists on the cable layer, when the accumulated water just overflows the upper surface of the sludge, one laser receiver 802 receives an obvious optical signal, the laser transmitter 801 is obliquely arranged, so that the laser receiver 802 receiving the optical signal is related to the thickness of the sludge, and the thickness of the sludge can be judged according to the laser receiver 802 receiving the optical signal through pre-calibration. As the water level rises, the laser receiver 802 that receives the optical signal will change. The thickness of the sludge in the cable layer can be mastered through the sludge thickness detection device, and guidance is provided for monitoring and pollution discharge work of the sludge in the cable layer.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (16)
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