CN111282332A - Automatic flushing system of vibrating screen for petroleum drilling and using method of automatic flushing system - Google Patents
Automatic flushing system of vibrating screen for petroleum drilling and using method of automatic flushing system Download PDFInfo
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- CN111282332A CN111282332A CN202010237164.1A CN202010237164A CN111282332A CN 111282332 A CN111282332 A CN 111282332A CN 202010237164 A CN202010237164 A CN 202010237164A CN 111282332 A CN111282332 A CN 111282332A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/804—Accessories integrally combined with devices for controlling the filtration
- B01D33/806—Accessories integrally combined with devices for controlling the filtration by flow measuring
Abstract
The invention relates to the field of drilling engineering in petroleum, coal mine and geological exploration, in particular to an automatic washing system of a vibrating screen for petroleum drilling and a using method thereof, wherein the automatic washing system is arranged below a screen cloth of the vibrating screen by a base, a moving frame is connected on a sliding rail of the base in a sliding way, a plurality of groups of injection mechanisms are uniformly connected on the moving frame, a pushing mechanism is connected on one side of the moving frame, a plurality of water outlets of a water supply distribution mechanism are respectively connected with the plurality of groups of injection mechanisms by high-pressure hoses, the water outlets of the water supply mechanism are connected with water inlets of the water supply distribution mechanism by pipelines, a measuring mechanism is arranged on a pipeline at a drilling fluid mud inlet of the vibrating screen, and a control cabinet is respectively connected with the pushing mechanism, the; the system realizes secondary cleaning of the screen cloth of the vibrating screen, improves the sand removing effect, prolongs the service life of the screen cloth, reduces slurry leakage, reduces labor intensity and safety risk, improves efficiency, is convenient to install and is convenient to apply on site.
Description
Technical Field
The invention relates to the field of drilling engineering in petroleum, coal mine and geological exploration, in particular to an automatic washing system of a vibrating screen for petroleum drilling and a using method thereof.
Background
In the solid control equipment for well drilling production, the solid control equipment has multi-stage solid control, solid phase particles with different sizes are respectively screened out, and the vibrating screen is one-stage solid control equipment and is used for screening out large solid phase particles carried in mud.
In the shale shaker use, the solid phase granule often appears and leads to the solid phase granule to bond on the screen cloth because mud self viscidity to pile up gradually on the screen cloth, and then block up the screen cloth hole, cause mud can't pass through the screen cloth hole, lead to running thick liquid, the screen cloth is damaged scheduling problem earlier. The automatic flushing system for the vibrating screen for petroleum drilling can solve the problems and realize the function of automatically cleaning solid-phase particles of the vibrating screen.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides the automatic flushing system of the vibrating screen for petroleum drilling and the use method thereof, and particularly realizes secondary cleaning of the screen cloth of the vibrating screen so as to improve the sand removing effect, prolong the service life of the screen cloth, reduce slurry leakage, reduce labor intensity and safety risk and improve the efficacy. The system is convenient to install and convenient to apply on site.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
an automatic flushing system of a vibrating screen for petroleum drilling comprises
The base is arranged below the screen cloth of the vibrating screen, and at least 2 groups of sliding rails are arranged on the base;
the moving frame is connected to the sliding rail of the base in a sliding manner;
the injection mechanisms are provided with a plurality of groups, and the plurality of groups of injection mechanisms are uniformly connected to the moving frame;
the pushing mechanism is connected to one side of the moving frame;
the water supply distribution mechanism is provided with a plurality of water outlets, and the water outlets of the water supply distribution mechanism are respectively connected with the plurality of groups of injection mechanisms through high-pressure hoses;
the water outlet of the water supply mechanism is connected with the water inlet of the water supply distribution mechanism through a pipeline;
the measuring mechanism is arranged on a pipeline at a drilling fluid mud inlet of the vibrating screen;
and the control cabinet is connected with the pushing mechanism, the water supply distribution mechanism, the water supply mechanism and the measuring mechanism through cables respectively.
The injection mechanism be the multiunit injection pipe, evenly be provided with a plurality of shower nozzles on the injection pipe, be provided with the injection pipe water inlet on the injection pipe, multiunit injection pipe water inlet is connected with every delivery port of the electronic ball valve that leads to more through high-pressure hose respectively.
The pushing mechanism comprises a telescopic cylinder, a gas storage tank and an electromagnetic directional valve, a telescopic rod of the telescopic cylinder is connected with the middle position of the side wall of one side of the motion frame, a gas inlet of the telescopic cylinder is communicated with a gas outlet of the gas storage tank through a gas pipeline, the electromagnetic directional valve is connected on the gas pipeline through which the gas inlet of the telescopic cylinder is communicated with the gas outlet of the gas storage tank, and the electromagnetic directional valve is further connected with the control cabinet through a cable.
The water supply distribution mechanism is a multi-way electric ball valve, and water inlets of the plurality of groups of injection pipes are connected with water outlets of the multi-way electric ball valve through high-pressure hoses.
The water supply mechanism comprises a plunger pump and a water tank, a water outlet of the water tank is connected with a water inlet of the water supply distribution mechanism through a pipeline, the plunger pump is connected to the pipeline of the water outlet of the water tank, and the plunger pump is connected with the control cabinet through a cable.
When the injection pipe is connected to the moving frame, the direction of the water sprayed by the spray head on the injection pipe forms an included angle of 10-45 degrees with the screen cloth of the vibrating screen.
When the injection pipe is connected to the moving frame, the direction of the water sprayed by the spray head on the injection pipe forms an included angle of 30 degrees with the screen cloth of the vibrating screen.
The measuring mechanism comprises a sensor and a signal processing circuit, the sensor is connected to a slurry inlet pipeline of the vibrating screen, one end of the signal processing circuit is connected with a sensor wire, the other end of the signal processing circuit is connected with the control cabinet through a cable, and the sensor is a YBEQ-TUB-2000S type ultrasonic flow sensor.
The use method of the automatic flushing system for the vibrating screen for petroleum drilling comprises any one of the automatic flushing systems for the vibrating screen for petroleum drilling, and comprises the following steps
The method comprises the following steps: inputting a preset mud flow data value M into a control cabinet1Presetting a duration value t of mud flow data1Time interval value t for respectively opening a plurality of water outlets of water supply distribution mechanism one by one2Flushing period time value t of whole automatic vibrating screen flushing system3；
Step two: on the basis of the step one, firstly, measuring an actual mud flow data value M on a pipeline at a drilling fluid mud inlet of the vibrating screen through a measuring mechanism2Then the measuring mechanism measures the actual mud flow data value M2Converting the signal into a digital signal and transmitting the digital signal to a control cabinet;
step three: on the basis of the second step, the control cabinet receives the actual mud flow data value M2After the digital signal, the data value M of the preset mud flow is compared with the data value M1Comparing the actual mud flow data value M2Less than a predetermined mud flow data value M1Actual mud flow data value M measured simultaneously and actually2Continuously less than the preset mud flow data value M1Is more than or equal to the duration value t of the preset mud flow data1When the vibrating screen is used, the control cabinet controls the water supply mechanism to supply water to the water supply distribution mechanism, simultaneously controls the pushing mechanism to push the moving frame and the spraying mechanism on the moving frame to move back and forth on the base, and simultaneously controls one water outlet of the water supply distribution mechanism to open water to supply water to the spraying mechanism to wash the vibrating screen cloth corresponding to the spraying mechanism;
step four: on the basis of the third step, when the time for the spraying mechanism to wash the vibrating screen cloth corresponding to the spraying mechanism is equal to the time interval value t for respectively opening the water outlets of the water supply distribution mechanism one by one2When the water supply distribution mechanism is opened in the third step, the control cabinet controls the closing of the water outlet on the water supply distribution mechanism opened in the third step, then the other water outlet on the water supply distribution mechanism is opened again to wash the other vibrating screen cloth corresponding to the other spraying mechanism, and so on, the interval time is equal to t2Closing the former opened water outlet on the water supply distribution mechanism, opening the next water outlet, and flushing the sieve cloth of the vibrating sieve corresponding to all the spraying mechanisms one by one;
step five: on the basis of the fourth step, after the sieve cloths of the vibrating screens corresponding to all the injection mechanisms are washed one by one, the control cabinet controls the water supply mechanism, the water supply distribution mechanism and the pushing mechanism to be closed;
step six: on the basis of the fifth step, when the time for closing the water supply mechanism, the water supply distribution mechanism and the pushing mechanism under the control of the control cabinet is equal to the washing period time value t of the whole automatic washing system of the vibrating screen3Then, the actual mud flow data value M on the pipeline at the drilling fluid mud inlet of the vibrating screen is measured again through the measuring mechanism2Then go through step two to stepAnd the method of the fifth step washes the sieve cloth of the vibrating sieve corresponding to all the jetting mechanisms one by one in a circulating manner.
The control cabinet comprises a controller, a time relay, a first alternating current relay, a second alternating current relay and a direct current transformer, the first alternating current relay is controlled by the controller to control the water supply mechanism, the second alternating current relay is controlled by the controller to control the water supply distribution mechanism, the controller controls the time relay to control the pushing mechanism to complete automatic washing of the vibrating screen cloth corresponding to all the spraying mechanisms, and the direct current transformer is used for converting 220V voltage into voltage required by the controller.
The invention has the beneficial effects that:
compared with the prior art, the invention is arranged below the sieve cloth of the vibrating sieve by the base, at least a group of slide rails are arranged on the base, the moving frame is connected on the slide rails of the base in a sliding way, the injection mechanism is provided with a plurality of groups, the plurality of groups of injection mechanisms are uniformly connected on the moving frame, the injection mechanism is used for flushing the sieve cloth of the vibrating sieve, the pushing mechanism is connected on one side of the moving frame, the pushing mechanism is used for driving the injection mechanism to slide back and forth on the base by the moving frame, the water supply distribution mechanism is provided with a plurality of water outlets, the plurality of water outlets of the water supply distribution mechanism are respectively connected with the plurality of groups of injection mechanisms by high-pressure hoses, water is supplied to the plurality of injection mechanisms by different water outlets for flushing the sieve cloth of the vibrating sieve corresponding to each injection mechanism, the water outlets of, the control cabinet controls the opening of the pushing mechanism, the water supply distribution mechanism and the water supply mechanism to automatically flush the sieve cloths of the vibrating screen corresponding to all the injection mechanisms, and after all the sieve cloths of the vibrating screen are flushed, the control cabinet controls the closing of the pushing mechanism, the water supply distribution mechanism and the water supply mechanism, and when one flushing period of all the sieve cloths of the vibrating screen is flushed and the other flushing period of all the sieve cloths of the vibrating screen is flushed, the control cabinet controls the closing of the pushing mechanism, the water supply distribution mechanism and the water supply mechanism When the interval time of the washing period is equal to the time value of the washing period of the whole automatic washing system of the vibrating screen preset in the control cabinet, the control cabinet controls the pushing mechanism, the water supply distribution mechanism and the water supply mechanism to be opened again to automatically wash the screen cloth of the vibrating screen corresponding to all the injection mechanisms in the next period, and the washing process is circulated.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the control principle of the control cabinet of the invention.
In the figure: 1-a base; 2-a slide rail; 3-a sensor; 4-a measuring mechanism; 5-a signal processing circuit; 6-a water supply mechanism; 7-a water tank; 8-a plunger pump; 9-water supply distribution mechanism; 10-a control cabinet; 11-a gas storage tank; 12-a solenoid directional valve; 13-a telescopic cylinder; 14-a jet pipe; 15-a motion frame; 16-spray head.
Detailed Description
Example 1:
referring to FIG. 1, which is a schematic structural view of an embodiment 1 of the present invention, an automatic flushing system for a vibrating screen for oil drilling comprises
The vibrating screen comprises a base 1, wherein the base 1 is arranged below a screen cloth of the vibrating screen, and at least 2 groups of sliding rails 2 are arranged on the base 1;
the moving frame 15, the moving frame 15 is connected to the slide rail 2 of the base 1 in a sliding way;
the injection mechanisms are provided with a plurality of groups, and the plurality of groups of injection mechanisms are uniformly connected to the moving frame 15;
the pushing mechanism is connected to one side of the moving frame 15;
the water supply distribution mechanism 9 is provided with a plurality of water outlets, and the plurality of water outlets of the water supply distribution mechanism 9 are respectively connected with the plurality of groups of spraying mechanisms through high-pressure hoses;
a water outlet of the water supply mechanism 7 is connected with a water inlet of the water supply distribution mechanism 9 through a pipeline;
the measuring mechanism 4 is arranged on a pipeline at a drilling fluid mud inlet of the vibrating screen;
and the control cabinet 10 is connected with the pushing mechanism, the water supply distribution mechanism 9, the water supply mechanism 7 and the measuring mechanism 4 through cables respectively, and the control cabinet 10 is connected with the pushing mechanism, the water supply distribution mechanism 9, the water supply mechanism 7 and the measuring mechanism 4 through cables respectively.
In actual use: the base 1 is arranged below the sieve cloth of the vibrating sieve, at least 2 groups of slide rails 2 are arranged on the base 1, the moving frame 15 is connected on the slide rails 2 of the base 1 in a sliding manner, the injection mechanisms are provided with a plurality of groups, the plurality of groups of injection mechanisms are uniformly connected on the moving frame 15, the injection mechanisms are used for flushing the sieve cloth of the vibrating sieve, the pushing mechanism is connected on one side of the moving frame 15 and used for driving the injection mechanisms to slide back and forth on the base 1 by the moving frame 15, the water supply distribution mechanism 9 is provided with a plurality of water outlets, the plurality of water outlets of the water supply distribution mechanism 9 are respectively connected with the plurality of groups of injection mechanisms through high-pressure hoses, water is supplied to the plurality of injection mechanisms through different water outlets to flush the sieve cloth of the vibrating sieve corresponding to each injection mechanism, the water outlet of the water supply mechanism 7 is connected with the water inlet, the measuring mechanism 4 is arranged on a pipeline at a drilling fluid mud inlet of the vibrating screen, the measuring mechanism 4 is used for measuring mud flow on the pipeline at the drilling fluid mud inlet of the vibrating screen, the control cabinet 10 is respectively connected with the pushing mechanism, the water supply distribution mechanism 9, the water supply mechanism 7 and the measuring mechanism 4 through cables, the actual mud flow value on the pipeline at the drilling fluid mud inlet of the vibrating screen is compared with the mud flow value preset in the control cabinet 10, when the actual mud flow value is continuously smaller than the mud flow value preset in the control cabinet 10 within a preset certain time, the control cabinet 10 controls the pushing mechanism, the water supply distribution mechanism 9 and the water supply mechanism 7 to be opened for automatically washing the vibrating screen cloths corresponding to all the spraying mechanisms, and after all the vibrating screen cloths are washed, the control cabinet 10 controls the pushing mechanism, the water supply distribution mechanism 9 to be closed, When the interval time between one washing cycle of washing the sieve cloth of all the vibrating sieves and the other washing cycle of washing the sieve cloth of all the vibrating sieves is equal to the washing cycle time value of the whole vibrating sieve automatic washing system preset in the control cabinet 10, the control cabinet 10 controls the pushing mechanism, the water supply distribution mechanism 9 and the water supply mechanism 7 to be opened again to carry out the next cycle automatic washing of the sieve cloth of the vibrating sieves corresponding to all the spraying mechanisms, so as to circulate, wherein the control cabinet 10 belongs to the prior art, and the invention is applicable to the control cabinet 10 of the control cabinet 10 as long as the control cabinet control function of the control cabinet can be realized in the prior art, the control cabinet 10 can be a PLC controller, and the vibrating sieve automatic washing system for the petroleum drilling with the structure realizes the secondary washing of the sieve cloth of the vibrating sieves, so as to improve the sand removing effect, prolong the service life of the sieve cloth and reduce the slurry leakage, the labor intensity and the safety risk are reduced, the efficiency is improved, and the system is convenient to install and convenient to apply on site.
Example 2:
the present embodiment is different from embodiment 1 in that: the injection mechanism is a plurality of groups of injection pipes 14, a plurality of spray heads 16 are uniformly arranged on the injection pipes 14, injection pipe water inlets are formed in the injection pipes 14, and the injection pipe 14 water inlets are connected with the water outlets of the water supply distribution mechanism 9 through high-pressure hoses.
In actual use: the multiple groups of injection pipes 14 are uniformly connected to the moving frame 15, each group of injection pipes 14 corresponds to one vibrating screen cloth, the injection pipes 14 are uniformly provided with multiple spray heads 16 for washing the corresponding vibrating screen cloth, the injection pipes 14 are provided with injection pipe water inlets, the injection pipes 14 water inlets are connected with the water outlets of the water supply distribution mechanism 9 through high-pressure hoses, and the injection pipe water inlets are used for conveying water in the water supply distribution mechanism 9 into the injection pipes.
Example 3:
the present embodiment is different from embodiment 1 in that: the pushing mechanism comprises a telescopic cylinder 13, a gas storage tank 11 and an electromagnetic directional valve 12, wherein a telescopic rod of the telescopic cylinder 13 is connected with the middle position of the side wall of one side of the moving frame 15, a gas inlet of the telescopic cylinder 13 is communicated with a gas outlet of the gas storage tank 11 through a gas pipeline, the electromagnetic directional valve 12 is connected on the gas pipeline through which the gas inlet of the telescopic cylinder 13 is communicated with the gas outlet of the gas storage tank 11, and the electromagnetic directional valve 12 is further connected with the control cabinet 10 through a cable.
In actual use: the telescopic rod of telescopic cylinder 13 is connected with the lateral wall intermediate position of motion frame 15 one side, telescopic cylinder 13 is used for motion frame 15 to drive injection mechanism reciprocating motion and washes the shale shaker screening cloth, telescopic cylinder 13's air inlet passes through the gas pipeline and communicates with the gas outlet of gas holder 11, gas holder 11 is used for giving telescopic cylinder 13 power air supply, solenoid directional valve 12 is connected on the gas pipeline of telescopic cylinder 13's air inlet and the gas outlet intercommunication of gas holder 11, solenoid directional valve 12 is used for closing or opening the vent line, solenoid directional valve 12 still is connected with switch board 10 through the cable conductor, solenoid directional valve 12 controls the switch of solenoid directional valve 12 through switch board 10.
Example 4:
this embodiment is different from embodiment 1 or 2 in that: the water supply distribution mechanism 9 is a multi-way electric ball valve, and water inlets of the multiple groups of injection pipes 14 are respectively connected with each water outlet of the multi-way electric ball valve through a high-pressure hose.
In actual use: the water supply distribution mechanism 9 is a multi-way electric ball valve, the four-way electric ball valve is selected, four groups of injection pipes 14 are arranged, water inlets of the four groups of injection pipes 14 are respectively connected with each water outlet of the four-way electric ball valve through high-pressure hoses, and water can be conveniently supplied to each group of injection pipes 14.
Example 5:
the present embodiment is different from embodiment 1 in that: the water supply mechanism 7 comprises a plunger pump 8 and a water tank 7, a water outlet of the water tank 7 is connected with a water inlet of the water supply distribution mechanism 9 through a pipeline, the plunger pump 8 is connected on the pipeline of the water outlet of the water tank 7, and the plunger pump 8 is connected with the control cabinet 10 through a cable.
In actual use: the delivery port of water tank 7 passes through the pipeline and is connected with the water inlet of water supply distribution device 9, and water tank 7 is used for storing water, provides the water source, and plunger pump 8 is connected on the pipeline of the delivery port of water tank 7, and plunger pump 8 is used for providing power and carries water to the water supply distribution device 9 in, and plunger pump 8 passes through the cable conductor and is connected with switch board 10, and switch board 10 control plunger pump 8 opens and closes.
Example 6:
the present embodiment is different from embodiment 2 in that: when the injection pipe 14 is connected to the moving frame 15, the direction of the water sprayed by the spray head 16 on the injection pipe 14 forms an included angle of 10-45 degrees with the sieve cloth of the vibrating sieve.
It is preferable that the spraying pipe 14 is connected to the moving frame 15 such that the spraying direction of the spraying head 16 on the spraying pipe 14 forms an angle of 30 ° with the screen cloth of the vibrating screen.
In actual use: when the injection pipe 14 is connected to the moving frame 15, the direction of water sprayed by the spray head 16 on the injection pipe 14 and the sieve cloth of the vibrating sieve form an included angle of 10-45 degrees, and when the injection pipe 14 is connected to the moving frame 15, the direction of water sprayed by the spray head 16 on the injection pipe 14 and the sieve cloth of the vibrating sieve form an included angle of 30 degrees, so that the washing effect is optimal when the washing pipe washes the sieve cloth of the vibrating sieve.
Example 7:
the present embodiment is different from embodiment 1 in that: the measuring mechanism 4 comprises a sensor 3 and a signal processing circuit 5, the sensor 3 is connected to a mud inlet pipeline of the vibrating screen, one end of the signal processing circuit 5 is connected with the sensor 3 through a wire, the other end of the signal processing circuit 5 is connected with the control cabinet 10 through a cable, and the sensor 3 adopts a YBEQ-TUB-2000S type ultrasonic flow sensor.
In actual use: the sensor 3 is connected to a vibrating screen mud inlet pipeline, the sensor 3 is used for measuring mud flow on the vibrating screen mud inlet pipeline, one end of the signal processing circuit 5 is in electric wire connection with the sensor 3, the other end of the signal processing circuit 5 is connected with the control cabinet 10 through a cable, the signal processing circuit 5 converts mud flow data measured by the sensor 3 into digital signals and transmits the digital signals to the control cabinet 10, the sensor 3 adopts a YBEQ-TUB-2000S type ultrasonic flow sensor, the measuring range is large, and the measured volume flow is not influenced by thermophysical parameters such as temperature, pressure, viscosity, density and the like of a measured fluid and is suitable for measuring the mud flow on the vibrating screen mud inlet pipeline.
Example 8:
the use method of the automatic flushing system for the vibrating screen for petroleum drilling comprises the step of adopting the automatic flushing system for the vibrating screen for petroleum drilling in any one of the embodiments, and the automatic flushing system comprises the following steps
The method comprises the following steps: the preset mud flow data value M is firstly input into the control cabinet 101Presetting a duration value t of mud flow data1Time interval value t for respectively opening a plurality of water outlets of water supply distribution mechanism 9 one by one2Flushing period time value t of whole automatic vibrating screen flushing system3；
Step two: on the basis of the step one, firstly, measuring an actual mud flow data value M on a pipeline at a drilling fluid mud inlet of the vibrating screen through a measuring mechanism 42Then the measuring mechanism 4 will measure the actual mud flow data value M2Converted into digital signals and transmitted to the control cabinet 10;
step three: on the basis of the second step, the control cabinet 10 receives the actual mud flow data value M2After the digital signal, the data value M of the preset mud flow is compared with the data value M1Comparing the actual mud flow data value M2Less than a predetermined mud flow data value M1Actual mud flow data value M measured simultaneously and actually2Continuously less than the preset mud flow data value M1Is more than or equal to the duration value t of the preset mud flow data1During the process, the control cabinet 10 controls the water supply mechanism 7 to supply water to the water supply distribution mechanism 9, the control cabinet 10 controls the pushing mechanism to push the moving frame 15 and the spraying mechanism on the moving frame 15 to move back and forth on the base 1, and meanwhile, the control cabinet 10 also controls one water outlet of the water supply distribution mechanism 9 to open water to supply water to the spraying mechanism to wash the vibrating screen corresponding to the spraying mechanismCloth;
step four: on the basis of the third step, when the time for the spraying mechanism to wash the vibrating screen cloth corresponding to the spraying mechanism is equal to the time interval value t for respectively opening the water outlets of the water supply distribution mechanism 9 one by one2When the water supply distribution mechanism 9 is opened in the third step, the control cabinet 10 controls to close the water outlet on the water supply distribution mechanism 9, then the other water outlet on the water supply distribution mechanism 9 is opened to wash the other vibrating screen cloth corresponding to the other spraying mechanism, and the like, wherein the interval time is equal to t2When the water supply distribution mechanism 9 is closed, the former opened water outlet is opened, the next water outlet is opened, and all the vibrating screen cloths corresponding to the spraying mechanisms are washed one by one;
step five: on the basis of the fourth step, after the sieve cloths of the vibrating screens corresponding to all the injection mechanisms are washed one by one, the control cabinet 10 controls the water supply mechanism 7, the water supply distribution mechanism 9 and the pushing mechanism to be closed;
step six: on the basis of the fifth step, when the time for closing the water supply mechanism 7, the water supply distribution mechanism 9 and the pushing mechanism under the control of the control cabinet 10 is equal to the washing period time value t of the whole automatic washing system of the vibrating screen3Then, the actual mud flow data value M on the pipeline at the drilling fluid mud inlet of the vibrating screen is measured again through the measuring mechanism 42And then sequentially and circularly flushing the sieve cloth of the vibrating sieve corresponding to all the spraying mechanisms one by the methods from the second step to the fifth step.
The automatic flushing system of the vibrating screen for the petroleum drilling can be used for cleaning the screen cloth of the vibrating screen, solid-phase particles are prevented from being accumulated on the screen cloth, the filtering effect of the screen cloth is effectively improved by the using method of the automatic flushing system of the vibrating screen for the petroleum drilling, the service cycle of the screen cloth is prolonged, slurry leakage is reduced, the labor intensity and the safety risk are reduced, and the effect is improved. Meanwhile, the system is simple to operate, safe, reliable and convenient for field application.
Example 9:
referring to fig. 2, the present embodiment is different from embodiment 8 in that: the control cabinet 10 comprises a controller, a time relay, a first alternating current relay, a second alternating current relay and a direct current transformer, the first alternating current relay is controlled by the controller to control the water supply mechanism 7, the second alternating current relay is controlled by the controller to control the water supply distribution mechanism 9, the time relay is controlled by the controller to control the pushing mechanism to complete automatic washing of the vibrating screen cloth corresponding to all the spraying mechanisms, and the direct current transformer is used for converting 220V voltage into voltage required by the controller.
In actual use: the control cabinet 10 is a prior art, and the control cabinet 10 can be applied to the present invention as long as the control principle in the prior art is the same as that of the control cabinet 10 in the present invention. Wherein the controller in the control cabinet 10 is a programmable controller, CPUSR20 of Siemens (Siemens) is selected, the controller can realize time control and action control through programming, specifically, the controller controls a first alternating current relay to control the start and stop of a plunger pump in the water supply mechanism 7, the controller controls a second alternating current relay to control the opening and closing of a multi-way electric ball valve, the controller controls a time relay to control an electromagnetic reversing valve in a pushing mechanism to finish the automatic washing of vibrating screen cloth corresponding to all injection mechanisms, a direct current transformer is used for converting 220V voltage into voltage required by the controller, a signal processing circuit 5 converts mud flow data measured by a sensor 3 into digital signals and transmits the digital signals to the controller, the sensor 3 adopts a YBEQ-TUB-2000S type ultrasonic flow sensor, the measurement range is wide, and the controller controls the start and stop of the whole system, the structure can control time accurately, so that the whole automatic flushing system of the vibrating screen for petroleum drilling improves flushing efficiency and whole construction efficiency.
Example 10:
the use method of the automatic flushing system for the vibrating screen for petroleum drilling comprises the step of adopting the automatic flushing system for the vibrating screen for petroleum drilling in any one of the embodiments, and the automatic flushing system comprises the following steps
The method comprises the following steps: the preset mud flow data value M is firstly input into the control cabinet 101，Presetting a duration value t of mud flow data1Time interval value t for respectively opening a plurality of water outlets of water supply distribution mechanism 9 one by one2Flushing period time value t of whole automatic vibrating screen flushing system3Therein, the factPreset mud flow data value M in use1Is in the range of 2-10L/S, and the preset mud flow data value M is adjusted and set according to the situation of the site in the embodiment1The duration value t of the mud flow data is preset in practical use and is 5L/S1Is in the range of 5-99s, and the preset mud flow data duration value t is adjusted and set according to the situation of the site in the embodiment1A time interval value t of respectively opening a plurality of water outlets of the water supply distribution mechanism 9 one by one in actual use for 60s2In this embodiment, the time interval value t for opening the water outlets of the water supply distribution mechanism 9 one by one is adjusted and set according to the pressure regulation condition of the air storage tank 11 on site2The time value t of the flushing period of the whole automatic flushing system of the vibrating screen is 12s in practical use3Is in the range of 5-999s, the time value t of the flushing cycle of the whole automatic flushing system of the vibrating screen is adjusted and set according to the situation of the site in the embodiment3Is 10 min;
step two: on the basis of the step one, firstly, measuring an actual mud flow data value M on a pipeline at a drilling fluid mud inlet of the vibrating screen through a sensor 3 in a measuring mechanism 42Then the signal processing circuit 5 in the measuring means 4 will take the actual mud flow data value M2Converted into digital signals and transmitted to the control cabinet 10;
step three: on the basis of the second step, the control cabinet 10 receives the actual mud flow data value M2After the digital signal, the data value M of the preset mud flow is compared with the data value M1Comparing the actual mud flow data value M2Less than a predetermined mud flow data value M1Actual mud flow data value M measured simultaneously and actually2Continuously less than the preset mud flow data value M1The time is more than or equal to the duration value t of the preset mud flow data in the control cabinet 101At this time, the control cabinet 10 controls the plunger pump 8 in the water supply mechanism 7 to start to supply water in the water tank 7 to the water supply distribution mechanism 9, the control cabinet 10 controls the pushing mechanism to push the moving frame 15 and the spraying mechanism on the moving frame 15 to move back and forth on the base 1, and the control cabinet 10 also controls the first one of the water supply distribution mechanism 9 from left to right in fig. 1The water outlet is opened to supply water to the spraying mechanism to wash the vibrating screen cloth corresponding to the spraying mechanism;
step four: on the basis of the third step, when the time for the spraying mechanism to flush the vibrating screen cloth corresponding to the spraying mechanism is equal to the time interval value t for respectively opening the water outlets of the water supply distribution mechanism 9 one by one in the control cabinet 102When the water supply distribution mechanism 9 is opened in the third step, the control cabinet 10 controls to close the water outlet on the water supply distribution mechanism 9, then the second water outlet on the water supply distribution mechanism 9 from left to right in fig. 1 is opened to wash the second vibrating screen cloth corresponding to the second spraying mechanism, and so on, the interval time is equal to t2Closing the former opened water outlet on the water supply distribution mechanism 9, then opening the next water outlet, and flushing the sieve cloth of the vibrating sieve corresponding to all the spraying mechanisms one by one;
step five: on the basis of the fourth step, after the sieve cloths of the vibrating screens corresponding to all the injection mechanisms are washed one by one, the control cabinet 10 controls the water supply mechanism 7, the water supply distribution mechanism 9 and the pushing mechanism to be closed;
step six: on the basis of the fifth step, when the time for closing the water supply mechanism 7, the water supply distribution mechanism 9 and the pushing mechanism under the control of the control cabinet 10 is equal to the washing period time value t of the whole automatic washing system of the vibrating screen, which is preset in the control cabinet 103Then, the actual mud flow data value M on the pipeline at the drilling fluid mud inlet of the vibrating screen is measured again through the measuring mechanism 42And then sequentially and circularly flushing the sieve cloth of the vibrating sieve corresponding to all the spraying mechanisms one by the methods from the second step to the fifth step.
By the method, the secondary cleaning of the vibrating screen cloth is realized, so that the sand removing effect is improved, the service life of the screen cloth is prolonged, the slurry leakage is reduced, the labor intensity and the safety risk are reduced, and the effect is improved. The system is convenient to install and convenient to apply on site.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the scope of the present invention is within the scope of the claims.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Technical solutions between various embodiments may be combined with each other, but must be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Claims (10)
1. An automatic washing system of shale shaker for oil drilling, characterized by: comprises that
The vibrating screen comprises a base (1), wherein the base (1) is arranged below a screen cloth of the vibrating screen, and at least 2 groups of sliding rails (2) are arranged on the base (1);
the moving frame (15), the moving frame (15) is connected to the sliding rail (2) of the base (1) in a sliding manner;
the injection mechanisms are provided with a plurality of groups, and the plurality of groups of injection mechanisms are uniformly connected to the moving frame (15);
the pushing mechanism is connected to one side of the moving frame (15);
the water supply distribution mechanism (9), the water supply distribution mechanism (9) is provided with a plurality of water outlets, and the plurality of water outlets of the water supply distribution mechanism (9) are respectively connected with the plurality of groups of injection mechanisms through high-pressure hoses;
the water outlet of the water supply mechanism (7) is connected with the water inlet of the water supply distribution mechanism (9) through a pipeline;
the measuring mechanism (4), the measuring mechanism (4) is set up on the pipeline of drilling fluid mud entrance of the oscillating screen;
and the control cabinet (10), the control cabinet (10) is respectively connected with the pushing mechanism, the water supply distribution mechanism (9), the water supply mechanism (7) and the measuring mechanism (4) through cables.
2. The automatic flushing system of the vibrating screen for the petroleum drilling as set forth in claim 1, wherein: the injection mechanism is a plurality of groups of injection pipes (14), a plurality of spray heads (16) are uniformly arranged on the injection pipes (14), injection pipe water inlets are formed in the injection pipes (14), and the injection pipe water inlets are connected with water outlets of the water supply distribution mechanism (9) through high-pressure hoses.
3. The automatic flushing system of the vibrating screen for the petroleum drilling as set forth in claim 1, wherein: pushing mechanism include flexible cylinder (13), gas holder (11) and electromagnetic directional valve (12), the telescopic link of flexible cylinder (13) is connected with the lateral wall intermediate position of motion frame (15) one side, the air inlet of flexible cylinder (13) passes through the gas outlet intercommunication of gas pipeline and gas holder (11), electromagnetic directional valve (12) are connected on the gas pipeline of the air inlet of flexible cylinder (13) and the gas outlet intercommunication of gas holder (11), electromagnetic directional valve (12) still are connected with switch board (10) through the cable conductor.
4. An automatic flushing system of a vibrating screen for oil drilling according to claim 1 or 2, characterized in that: the water supply distribution mechanism (9) is a multi-way electric ball valve, and water inlets of the multiple groups of injection pipes (14) are respectively connected with each water outlet of the multi-way electric ball valve through a high-pressure hose.
5. The automatic flushing system of the vibrating screen for the petroleum drilling as set forth in claim 1, wherein: the water supply mechanism (7) comprises a plunger pump (8) and a water tank (7), the water outlet of the water tank (7) is connected with the water inlet of the water supply distribution mechanism (9) through a pipeline, the plunger pump (8) is connected to the pipeline of the water outlet of the water tank (7), and the plunger pump (8) is connected with the control cabinet (10) through a cable.
6. The automatic flushing system of the vibrating screen for the petroleum drilling as set forth in claim 2, wherein: when the injection pipe (14) is connected to the moving frame (15), the direction of water sprayed by the spray head (16) on the injection pipe (14) and the sieve cloth of the vibrating sieve form an included angle of 10-45 degrees.
7. The automatic flushing system of the vibrating screen for the petroleum drilling as set forth in claim 6, wherein: when the injection pipe (14) is connected to the moving frame (15), the direction of water sprayed by the spray head (16) on the injection pipe (14) and the sieve cloth of the vibrating sieve form an included angle of 30 degrees.
8. The automatic flushing system of the vibrating screen for the petroleum drilling as set forth in claim 1, wherein: measuring mechanism (4) include sensor (3) and signal processing circuit (5), and sensor (3) are connected on shale shaker mud inlet pipeline, and signal processing circuit (5) one end and sensor (3) connection of electric lines, and the signal processing circuit (5) other end passes through the cable conductor and is connected with switch board (10), sensor (3) adopt YBEQ-TUB-2000S type ultrasonic wave flow sensor.
9. The use method of the automatic flushing system for the vibrating screen for the petroleum drilling comprises the automatic flushing system for the vibrating screen for the petroleum drilling as claimed in any one of claims 1-8, and is characterized in that: comprises the following steps
The method comprises the following steps: inputting a preset mud flow data value M into a control cabinet (10)1Presetting a duration value t of mud flow data1Time interval value t for respectively opening a plurality of water outlets of water supply distribution mechanism (9) one by one2Flushing period time value t of whole automatic vibrating screen flushing system3；
Step two: on the basis of the step one, firstly, measuring an actual mud flow data value M on a pipeline at a drilling fluid mud inlet of the vibrating screen through a measuring mechanism (4)2Then the measuring mechanism (4) measures the actual mud flow data value M2Converted into digital signals and transmitted to the control cabinet (10);
step three: on the basis of the second step, the control cabinet (10) receives the actual mud flow data value M2After the digital signal, the data value M of the preset mud flow is compared with the data value M1Comparing the actual mud flow data value M2Less than a predetermined mud flow data value M1At the same time, and at the same timeActual measured mud flow data value M2Continuously less than the preset mud flow data value M1Is more than or equal to the duration value t of the preset mud flow data1When the washing machine is used, the control cabinet (10) controls the water supply mechanism (7) to supply water to the water supply distribution mechanism (9), the control cabinet (10) controls the pushing mechanism to push the moving frame (15) and the spraying mechanism on the moving frame (15) to move back and forth on the base (1), and meanwhile the control cabinet (10) also controls one water outlet in the water supply distribution mechanism (9) to open water to supply the spraying mechanism to wash the vibrating screen cloth corresponding to the spraying mechanism;
step four: on the basis of the third step, when the time for the spraying mechanism to wash the vibrating screen cloth corresponding to the spraying mechanism is equal to the time interval value t for respectively opening the water outlets of the water supply distribution mechanism (9) one by one2When the water supply mechanism is started, the control cabinet (10) controls the water outlet on the water supply distribution mechanism (9) opened in the step three to be closed, then the other water outlet on the water supply distribution mechanism (9) is opened to wash the other vibrating screen cloth corresponding to the other spraying mechanism, and the like, wherein the interval time is equal to t2When the water supply distribution mechanism (9) is closed, the former water outlet is opened, the next water outlet is opened, and the sieve cloths of the vibrating sieve corresponding to all the spraying mechanisms are washed one by one;
step five: on the basis of the fourth step, after the sieve cloths of the vibrating screens corresponding to all the injection mechanisms are washed one by one, the control cabinet (10) controls the water supply mechanism (7), the water supply distribution mechanism (9) and the pushing mechanism to be closed;
step six: on the basis of the fifth step, when the time for closing the water supply mechanism (7), the water supply distribution mechanism (9) and the pushing mechanism under the control of the control cabinet (10) is equal to the washing period time value t of the whole automatic washing system of the vibrating screen3Then, the actual mud flow data value M on the pipeline at the drilling fluid mud inlet of the vibrating screen is measured again through the measuring mechanism (4)2And then sequentially and circularly flushing the sieve cloth of the vibrating sieve corresponding to all the spraying mechanisms one by the methods from the second step to the fifth step.
10. The use method of the automatic flushing system of the vibrating screen for the petroleum drilling as set forth in claim 9, wherein: the control cabinet (10) include controller, time relay, first exchange relay, second exchange relay and DC transformer, through first exchange relay control water supply mechanism (7) of controller control, the controller control second exchange relay control water supply distribution mechanism (9), the automatic washing of all shale shaker screening cloths that injection mechanism corresponds is accomplished to the push mechanism control time relay of controller control, DC transformer is used for changing 220 volts into the required voltage of controller.
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| CN202010237164.1A CN111282332A (en) | 2020-03-30 | 2020-03-30 | Automatic flushing system of vibrating screen for petroleum drilling and using method of automatic flushing system |
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| CN202010237164.1A CN111282332A (en) | 2020-03-30 | 2020-03-30 | Automatic flushing system of vibrating screen for petroleum drilling and using method of automatic flushing system |
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