CN107461373A - A kind of constant pressure and constant flow control system of grouting and operating method - Google Patents

A kind of constant pressure and constant flow control system of grouting and operating method Download PDF

Info

Publication number
CN107461373A
CN107461373A CN201710780795.6A CN201710780795A CN107461373A CN 107461373 A CN107461373 A CN 107461373A CN 201710780795 A CN201710780795 A CN 201710780795A CN 107461373 A CN107461373 A CN 107461373A
Authority
CN
China
Prior art keywords
pressure
flow
slip casting
supply unit
grouting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710780795.6A
Other languages
Chinese (zh)
Other versions
CN107461373B (en
Inventor
杨磊
李玮枢
李术才
张庆松
随海通
张霄
刘人太
李召峰
梅洁
郭孔灵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong University
Original Assignee
Shandong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong University filed Critical Shandong University
Priority to CN201710780795.6A priority Critical patent/CN107461373B/en
Publication of CN107461373A publication Critical patent/CN107461373A/en
Application granted granted Critical
Publication of CN107461373B publication Critical patent/CN107461373B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B19/00Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for

Abstract

The invention discloses a kind of constant pressure and constant flow control system of grouting and operating method, system includes servo control unit, hydraulic pressure supply unit, grouting pump and monitoring unit, servo control unit connects hydraulic pressure supply unit and monitoring unit, receive the signal that monitoring unit is transmitted and regulate and control the output power value of hydraulic pressure supply unit, hydraulic pressure supply unit provides hydraulic power for grouting pump, slurry flow and pressure and by flow and pressure signal transmission to servo control unit in the grout outlet of monitoring unit monitoring grouting pump;Grouting pump includes two structure identical independence slip casting chambers, pass through the pressure size for controlling hydraulic pressure supply unit to be provided to each slip casting chamber, and then control pulp flow, to realize that slurries are mixed by proportioning, simultaneously, closed-loop control is collectively forming with grouting pump with foregoing hydraulic pressure supply unit by monitoring unit and servo control unit, realizes constant pressure or the constant flow slip casting of grouting pump.

Description

A kind of constant pressure and constant flow control system of grouting and operating method
Technical field
The present invention relates to a kind of constant pressure and constant flow control system of grouting and operating method.
Background technology
Slip casting be in tunneling and underground engineering process of construction dash forward discharge disaster administer and surrounding rock consolidation most effective means it One, its general principle is to be injected some curable slurries in crack or the hole of Rock And Soil by grouting equipment, to improve The method of its physico-mechanical properties.
In Grouting engineering, grouting pressure and flow are influenceed significantly by by note formation properties and grouting equipment.As a rule, when When stratum is loose, grouting pressure is smaller and flow is larger;When stratum densification, grouting pressure is larger and flow is smaller.Apply at present The grouting pump commonly used in work is controlled using flow more, and slurry flow is adjusted by changing different stalls.This constant flow rate slip casting There are problems in system, particularly when running into difficult note stratum, grouting pressure steeply rises, and easily induces country rock in construction And moderate finite deformation occurs for underground structure, engineering safety is threatened, while local boosting also results in surrounding rock consolidation effect in range of grouting Inequality, the risk of local gushing water or landslide is still suffered from after improvement.At present constant pressure pump on the market have using driving stepper motor as The low-pressure low flow syringe pump of representative, and the open loop type grouting pump for being driven to represent with blast.Existing constant pressure filling system Relatively stable grouting pressure can be provided, it is advantageously ensured that mortar depositing construction is safe, but led due to the otherness of stratum compactness extent Cause grouting amount spatial distribution uneven, it is difficult to ensure overall grouting consolidation effect.
During actual slip casting, frequently with constant flow mode slip casting when running into scall, and tight formation is run into often Using constant voltage mode slip casting.Generally, the geological environment met with underground engineering is extremely complicated, and scall interlocks with tight formation Distribution, using constant pressure, the filling system of two kinds of control functions of constant flow is provided simultaneously with grouting treatment, construction can be greatly improved Efficiency, it is ensured that regulation effect.Therefore, research constant pressure and constant flow control system of grouting has important practical significance and engineer applied Value.
The content of the invention
The present invention is in order to solve the above problems, it is proposed that a kind of constant pressure and constant flow control system of grouting and operating method, it is real Two kinds of existing constant pressure, constant flow grout injection control modes adjust at random, improve slip casting effect and efficiency.Control system of grouting of the present invention is SERVO CONTROL, pressure, flow to slurries output form closed-loop control, make slurries output pressure and flow close to corresponding setting Value.
To achieve these goals, the present invention adopts the following technical scheme that:
A kind of constant pressure and constant flow control system of grouting, including servo control unit, hydraulic pressure supply unit, grouting pump and monitoring Unit, wherein:
The servo control unit connection hydraulic pressure supply unit and monitoring unit, the signal that reception monitoring unit is transmitted is simultaneously Regulate and control the output power value of hydraulic pressure supply unit;The hydraulic pressure supply unit provides hydraulic power for grouting pump;The grouting pump Under the dynamic action of hydraulic pressure supply unit, different flow and the slurries of pressure are exported;The monitoring unit monitoring grouting pump is defeated Go out the flow and pressure and by flow and pressure signal transmission to servo control unit of slurries.
When carrying out constant pressure slip casting, the output that servo control unit regulates and controls hydraulic pressure supply unit according to the constant pressure value of setting is moved Force value, hydraulic pressure supply unit drive the slurries of grouting pump output certain pressure, the slurry that servo control unit monitors monitoring unit Hydraulic coupling finely tunes hydraulic pressure supply unit output valve compared with setting pressure, according to two pressure difference values, is constantly returned by closed loop Road adjusts, and makes slurry pressure close to setup pressure value.
When carrying out constant current slip casting, the output that servo control unit regulates and controls hydraulic pressure supply unit according to the flow value of setting is moved Force value, hydraulic pressure supply unit drive the slurries of grouting pump output certain flow, the slurry that servo control unit monitors monitoring unit Flow quantity finely tunes hydraulic pressure supply unit output valve compared with setting flow, according to two flow differences, is constantly returned by closed loop Road adjusts, and makes slurry flow close to setting flow value.
Further, the servo control unit, including display, PLC control devices and pilot valve, described is aobvious Show that device sets VGA port, transmit circuit to connect signal, show the flow and pressure value of monitoring unit transmission;Described PLC controls Device processed is connected by control circuit with pilot valve, and pilot valve is regulated and controled according to flow, pressure value;Described Pilot valve is connected by high-pressure oil pipe with oil pipe hole and the motor excessively of pressurization oil cylinder, controls and adjust hydraulic pressure supply unit The pressure of the hydraulic oil of offer.
Further, the hydraulic pressure supply unit includes motor and fuel tank, and described motor is arranged at the upper capping of fuel tank On;The motor is connected by high-pressure oil pipe with servo control unit and fuel tank, is driven by servo control unit controlled motor Dynamic load cylinder makees straight reciprocating motion, carrier of the fuel tank as storage hydraulic oil.
Further, the grouting pump is axially symmetric structure, includes two mutually isostructural independent slip casting chambers, the slip casting Chamber output slurries provide power by hydraulic pressure supply unit, by controlling hydraulic pressure supply unit to provide varying strength to two slip casting chambers Power, realize the slurries of two slip casting chambers output different ratio.
Further, the slip casting chamber includes pressurization oil cylinder, plunger case and scaffold, and pressurization oil cylinder shares with plunger case One piston rod, the pressurization oil cylinder provide reciprocating power by piston rod for plunger case;The plunger case, which relies on, to be added The power that compressing cylinder provides makes the into or out slip casting chamber cavity of slurries, and scaffold provides supporting for pressurization oil cylinder and plunger case Power.
Further, described pressurization oil cylinder includes cylinder tube, oil cylinder cover, piston rod, oil cylinder piston and oil cylinder rubber ring, Described cylinder tube is barrel-like structure, and oil pipe hole was reserved in bottom, and openend opens up internal thread connection oil cylinder cover, oil cylinder cover anchor ring Oil pipe hole was reserved, rod aperture is reserved in end face;Piston rod end connection oil cylinder piston is through oil cylinder cover in cylinder tube by hydraulic pressure Oil effect moves reciprocatingly;Oil cylinder piston outer ring surface opens up multiple-sealed ring recess, to install sealing ring.
Further, described plunger case includes material cylinder bucket, material cylinder lid, piston rod, material cylinder piston and material cylinder rubber ring, institute It is bicylindrical staving to state material cylinder bucket, and stock inlet is reserved in bottom and grout outlet, openend are connected by high-strength bolt with material cylinder lid;Material Reserve rod aperture in cylinder cap end face;Piston rod end connection material cylinder piston covers through material cylinder to move reciprocatingly in material cylinder bucket, material cylinder Piston outer ring surface opens up multiple-sealed ring recess, to install sealing ring.
Further, described scaffold includes upper backup pad, lower support plate and column, described upper bearing plate and under The reserved column mounting holes of supporting plate corner location, and a piston rod installation is reserved in upper backup pad short central axis both sides respectively Hole;Oil cylinder cover and material cylinder lid are respectively welded at the upper and lower surface of upper backup pad, and the end face preformed hole of oil cylinder cover and material cylinder lid with Upper backup pad piston rod mounting hole is concentric, and four root posts are each passed through the reserved column installation of upper backup pad and lower supporting plate Hole, and fastened using high-strength bolt, form scaffold.
Further, described monitoring unit includes electromagnetic flowmeter and pressure gauge, and the grout outlet of two slip casting chambers is pacified Fill a set of electromagnetic flowmeter and pressure gauge, flow and pressure and servo control is delivered to by signal line in the real time measure grout outlet Unit processed.
Further, described grout outlet is divided into two-way by slip casting chamber, respectively with two stock inlet phases of slip casting liquid mixer Even, slip casting liquid mixer grout outlet connects orifice tube by pressure duct, and orifice tube is installed in the earth formation.
Application method based on said system, flow, pressure initial value are set by operating servo control unit, and then adjusted The pressure of the hydraulic oil of hydraulic pressure supply unit output is saved, transmits the stream of two kinds of liquid through signal transmission circuit according to monitoring unit Amount, pressure signal real time management servo control unit, by controlling servo control unit hydraulic pressure supply unit is produced respectively not Same oil pressure is applied to corresponding slip casting chamber, makes two kinds of slurries pulp flows different, so that two kinds of slurries mix in injection slurry The ratio of two kinds of slurries reaches the requirement needed for engineering when device mixes, and mixed slurries are noted by pressure duct into orifice tube Enter among stratum until meeting slip casting ending standard.
Compared with prior art, beneficial effects of the present invention are:
(1) grout injection control being made up of in the present invention servo control unit, hydraulic pressure supply unit, grouting pump and monitoring unit System, constant pressure slip casting can be achieved, and constant flow slip casting can be realized, and two kinds of control modes can adjust at random.
(2) present invention can set grouting pressure, flow and its graded in servo control unit, accurate to control slip casting pressure Power, flow, and recordable slip casting process grouting parameter change, form P-Q-t curves.
(3) present invention two sets of slip casting units of design and measurement and control unit, can be achieved two fluid grouting;The slip casting of two sets of slip casting units Parameter independent control, two kinds of grout coordinate ratios can be realized stepless adjustable.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.
Fig. 1 is constant pressure and constant flow control system of grouting schematic diagram of the present invention;
Fig. 2 is present invention pressurization oil cylinder and scaffold detail drawing;
Fig. 3 is plunger case detail drawing of the present invention;
Fig. 4 is grouting pump schematic diagram of the present invention;
Fig. 5 is monitoring unit schematic diagram;
Fig. 6 is data monitoring of the present invention and the principle assumption diagram of transmitting-receiving.
In figure, 1-servo control unit;2-hydraulic pressure supply unit;3-grouting pump;4-A slurry charging baskets;5-B slurries Charging basket;6-monitoring unit;7-slip casting liquid mixer;8-orifice tube;9-stratum;10-A liquid cylinder tubes;No. 1 mistake of 11-A liquid Oil pipe hole;12-A liquid oil cylinder pistons;13-A liquid piston rods;14-A liquid oil cylinder covers;15-A liquid 2 crosses oil pipe hole;16- Support frame frame;17-A liquid material cylinder pistons;18-B liquid material cylinder pistons;19-B liquid 2 crosses oil pipe hole;20-B liquid oil cylinder covers;21—B Liquid piston rod;22-B liquid oil cylinder pistons;23-B liquid 1 crosses oil pipe hole;24-B liquid cylinder tubes;25-material cylinder lid;26-material cylinder Bucket;27-A liquid inlet valves;28-A liquid stock inlets;29-A liquid grout outlets;30-A liquid dump valves;31-B liquid inlet valves;32— B liquid stock inlets;33-B liquid grout outlets;34-B liquid dump valves;35-A liquid grout chambers;36-A liquid pressurization oil cylinder;37-plunger Cylinder;38-B liquid pressurization oil cylinder;39-B liquid grout chambers;40-electromagnetic flowmeter;41-pressure gauge.
Embodiment:
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
In the present invention, term as " on ", " under ", "left", "right", "front", "rear", " vertical ", " level ", " side ", The orientation or position relationship of instructions such as " bottoms " are based on orientation shown in the drawings or position relationship, only to facilitate describing this hair Bright each part or component structure relation and the relative determined, not refer in particular to either component or element in the present invention, it is impossible to understand For limitation of the present invention.
In the present invention, term such as " affixed ", " connected ", " connection " should be interpreted broadly, and expression can be fixedly connected, Can also be integrally connected or be detachably connected;Can be joined directly together, can also be indirectly connected by intermediary.For The related scientific research of this area or technical staff, the concrete meaning of above-mentioned term in the present invention can be determined as the case may be, It is not considered as limiting the invention.
Term explains part:Including self-defined term, generic term, needs are not explained and limit clear term, citation Offer and be related to content etc..
As background technology is introduced, during actual slip casting, noted when running into scall frequently with constant flow mode Frequently with constant voltage mode slip casting when starching, and running into tight formation.The grouting pump commonly used at present in construction is controlled using flow more, is led to Cross replacing different stalls regulation slurry flow.There are problems in this constant flow rate filling system, particularly work as in construction Grouting pressure steeply rises when running into difficult note stratum, easily induces country rock and moderate finite deformation occurs for underground structure, threaten engineering peace Entirely, while local boosting also results in surrounding rock consolidation effect inequality in range of grouting, and local gushing water or landslide are still suffered from after improvement Risk.Existing constant pressure filling system can provide relatively stable grouting pressure, it is advantageously ensured that mortar depositing construction is safe, but due to The otherness of stratum compactness extent and cause grouting amount spatial distribution uneven, it is difficult to ensure overall grouting consolidation effect.To understand Certainly technical problem as above, present applicant proposes a kind of constant pressure and constant flow changeable control system of grouting and application method.
In a kind of typical embodiment of the application, as shown in figure 1, a kind of constant pressure and constant flow control system of grouting, bag Servo control unit 1, hydraulic pressure supply unit 2, grouting pump 3 and monitoring unit 6 are included, wherein:
The servo control unit 1 connects hydraulic pressure supply unit 2 and monitoring unit 6, receives the letter that monitoring unit 6 is transmitted Number and regulate and control the output power value of hydraulic pressure supply unit 2;The hydraulic pressure supply unit 2 is that grouting pump 3 provides hydraulic power;It is described Grouting pump 3 exports different flow and the slurries of pressure under the dynamic action of hydraulic pressure supply unit 2;The monitoring unit 6 monitors Grouting pump 3 exports the flow and pressure and by flow and pressure signal transmission to servo control unit 1 of slurries.
By taking constant pressure slip casting as an example, filling system realizes that SERVO CONTROL process is:Servo control unit 1 is according to the constant pressure of setting The output power value of value regulation and control hydraulic pressure supply unit 2, hydraulic pressure supply unit 2 drive grouting pump 3 to export the slurries of certain pressure, watched Take control unit 1 slurry pressure that monitoring unit 6 monitors compares with setting pressure, hydraulic pressure is finely tuned according to two pressure difference values The output valve of feed unit 2, constantly adjusted by closed loop, make slurry pressure close to setup pressure value.
Similarly, filling system realizes that constant current SERVO CONTROL process is:Servo control unit 1 is adjusted according to the flow value of setting The output power value of hydraulic pressure supply unit 2 is controlled, hydraulic pressure supply unit 2 drives the slurries of the output certain flow of grouting pump 3, servo control Unit 1 processed compares the slurry flow that monitoring unit 6 monitors with setting flow, and hydraulic pressure supply is finely tuned according to two flow differences The output valve of unit 2, constantly adjusted by closed loop, make slurry flow close to setting flow value.
Further, the servo control unit 1, including display, PLC control devices and pilot valve, it is described Display sets VGA port, transmits circuit to connect signal, the flow and pressure value that display monitoring unit 6 transmits;Described PLC control devices are connected by control circuit with pilot valve, and pilot valve is regulated and controled according to flow, pressure value; Described pilot valve is connected by high-pressure oil pipe with oil pipe hole and the motor excessively of pressurization oil cylinder, for controlling and adjusting liquid The pressure of the hydraulic oil of the offer of feed unit 2 is provided.
Further, the hydraulic pressure supply unit 2 includes motor and fuel tank, and described motor is arranged at the upper capping of fuel tank On;Described motor is connected by high-pressure oil pipe with servo control unit 1 and fuel tank, and electricity is controlled by servo control unit 1 Machine drive load oil cylinder makees straight reciprocating motion;Carrier of the described fuel tank as storage hydraulic oil.
Further, the grouting pump 3 is axially symmetric structure, includes two mutually isostructural A liquid grouts chamber 35 and B liquid notes Starch chamber 39.Slip casting chamber output slurries provide power by hydraulic pressure supply unit 2.By controlling hydraulic pressure supply unit 2 to two slip castings Chamber provides the power of varying strength, realizes the slurries of two slip casting chamber output different ratios.
Further, by taking A liquid grouts chamber 35 as an example, the A liquid grouts chamber 35 includes A liquid pressurization oil cylinder 36, plunger case 37 With scaffold 16.A liquid pressurization oil cylinder 36 shares an A liquid piston rod 13 with plunger case 37.The A liquid pressurization oil cylinder 36 passes through A liquid piston rod 13 is that plunger case 37 provides reciprocating power;The plunger case 37 provides dynamic by A liquid pressurization oil cylinder 36 Power makes the into or out cavity of slurries;Described scaffold 16 is used to support and fixed A liquid pressurization oil cylinder 36 and plunger case 37.
Further, described A liquid pressurization oil cylinder 36 includes A liquid cylinder tube 10, A liquid oil cylinder cover 14, A liquid piston rod 13, A Liquid oil cylinder piston 12 and A liquid oil cylinder rubber rings.Described A liquid cylinder tube 10 is barrel-like structure, and bottom reserves A liquid 1 and crosses oil pipe Hole 11, openend open up internal thread connection A liquid oil cylinder cover 14;Reserve A liquid 2 and cross oil pipe hole 15, end face in the bezel ring, face of A liquid oil cylinder 14 The reserved hole of A liquid piston rod 13;The termination of A liquid piston rod 13 connection A liquid oil cylinder piston 12 is through A liquid oil cylinder cover 14 in A liquid cylinder tubes 10 are moved reciprocatingly by hydraulic oil effect;The outer ring surface of A liquid oil cylinder piston 12 opens up three seals ring recess, for installing sealing ring.
Further, described plunger case 37 includes material cylinder bucket 26, material cylinder lid 25, A liquid piston rod 13, A liquid material cylinder pistons 17 and A liquid material cylinder rubber rings.Described material cylinder bucket 26 is bicylindrical staving, and A liquid stock inlet 28 and A liquid grout outlets are reserved in bottom 29, openend is connected by high-strength bolt with material cylinder lid 25;Reserve the hole of A liquid piston rod 13 in the end face of material cylinder lid 25;A liquid piston rod 13 Termination connection A liquid material cylinders piston 17 moves reciprocatingly through material cylinder lid 25 in material cylinder bucket 26, and the outer ring surface of A liquid material cylinders piston 17 opens up Three seals ring recess, for installing sealing ring.
Further, described scaffold 16 includes upper backup pad, lower support plate and column.Described upper bearing plate and The reserved column mounting holes of lower supporting plate corner location, and an A liquid piston rod is reserved in upper backup pad short central axis both sides respectively 13 mounting holes;A liquid oil cylinder cover 14 and material cylinder lid 25 are respectively welded at the upper and lower surface of upper backup pad, and A liquid oil cylinder cover 14 and material The end face preformed hole of cylinder cap 25 and upper backup pad A liquid 13 mounting holes of piston rod are concentric.Four root posts are each passed through upper backup pad And the reserved column mounting holes of lower supporting plate, and fastened using high-strength bolt, form scaffold 16.
Further, described monitoring unit 6 includes electromagnetic flowmeter 40 and pressure gauge 41.The grout outlet of two slip casting chambers A set of electromagnetic flowmeter 40 and pressure gauge 41 are respectively mounted, for flow and pressure in the real time measure grout outlet and passes through signal line It is delivered to servo control unit 1.
Further, described grout outlet is divided into two-way by slip casting chamber, respectively with 7 two stock inlet phases of slip casting liquid mixer Even, the grout outlet of slip casting liquid mixer 7 connects orifice tube 8 by pressure duct, and orifice tube 8 is arranged in stratum 9.
Application method based on said system, flow, pressure initial value are set by operating servo control unit 1, and then The pressure for the hydraulic oil that hydraulic pressure supply unit 2 exports is adjusted, circuit is transmitted through signal according to monitoring unit 6 and transmits two kinds of liquid Flow, pressure signal real time management servo control unit 1, by controlling servo control unit 1 to distinguish hydraulic pressure supply unit 2 Produce different oil pressure and be applied to corresponding slip casting chamber, make two kinds of slurries pulp flows different, so that two kinds of slurries are in slip casting The ratio of two kinds of slurries reaches the requirement needed for engineering when liquid mixer 7 mixes, and mixed slurries enter by pressure duct Orifice tube 8 is injected among stratum 9 until meeting slip casting ending standard.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.

Claims (10)

1. a kind of constant pressure and constant flow control system of grouting, it is characterized in that:Including servo control unit, hydraulic pressure supply unit, slip casting Pump and monitoring unit, wherein:
The servo control unit connection hydraulic pressure supply unit and monitoring unit, receive the signal that monitoring unit is transmitted and regulation and control The output power value of hydraulic pressure supply unit;The hydraulic pressure supply unit provides hydraulic power for grouting pump;The grouting pump is in liquid Under the dynamic action for pressing feed unit, different flow and the slurries of pressure are exported;The monitoring unit monitoring grouting pump output slurry The flow and pressure of liquid and by flow and pressure signal transmission to servo control unit.
2. a kind of constant pressure and constant flow control system of grouting as claimed in claim 1, it is characterized in that:When carrying out constant pressure slip casting, Servo control unit regulates and controls the output power value of hydraulic pressure supply unit according to the constant pressure value of setting, and hydraulic pressure supply unit drives slip casting Pump exports the slurries of certain pressure, and servo control unit compares the slurry pressure that monitoring unit monitors with setting pressure, root Hydraulic pressure supply unit output valve is finely tuned according to two pressure difference values, is constantly adjusted by closed loop, makes slurry pressure close to setting Pressure value;
When carrying out constant current slip casting, servo control unit regulates and controls the output power of hydraulic pressure supply unit according to the flow value of setting Value, hydraulic pressure supply unit drive the slurries of grouting pump output certain flow, the slurries that servo control unit monitors monitoring unit Flow finely tunes hydraulic pressure supply unit output valve compared with setting flow, according to two flow differences, constantly by closed loop Adjustment, make slurry flow close to setting flow value.
3. a kind of constant pressure and constant flow control system of grouting as claimed in claim 1, it is characterized in that:The servo control unit, Including display, PLC control devices and pilot valve, described display sets VGA port, to connect signal transfer line Road, show the flow and pressure value of monitoring unit transmission;Described PLC control devices are connected by control circuit and pilot valve Connect, pilot valve is regulated and controled according to flow, pressure value;Described pilot valve passes through high-pressure oil pipe and pressurization oil cylinder Cross oil pipe hole and motor be connected, control and adjust the pressure for the hydraulic oil that hydraulic pressure supply unit provides.
4. a kind of constant pressure and constant flow control system of grouting as claimed in claim 1, it is characterized in that:The hydraulic pressure supply unit bag Motor and fuel tank are included, described motor is arranged on the upper capping of fuel tank;The motor passes through high-pressure oil pipe and SERVO CONTROL list Member and fuel tank are connected, and make straight reciprocating motion by servo control unit controlled motor drive load oil cylinder, fuel tank is as storage The carrier of liquid storage force feed.
5. a kind of constant pressure and constant flow control system of grouting as claimed in claim 1, it is characterized in that:The grouting pump is axial symmetry Structure, comprising two mutually isostructural independent slip casting chambers, the slip casting chamber output slurries provide power by hydraulic pressure supply unit, lead to The power that control hydraulic pressure supply unit provides two slip casting chambers varying strength is crossed, realizes that two slip casting chambers export different ratio Slurries.
6. a kind of constant pressure and constant flow control system of grouting as claimed in claim 5, it is characterized in that:The slip casting chamber includes pressurization Oil cylinder, plunger case and scaffold, pressurization oil cylinder share a piston rod with plunger case, and the pressurization oil cylinder is by piston rod Plunger case provides reciprocating power;The power that the plunger case provides by pressurization oil cylinder makes the into or out slip casting of slurries Chamber cavity, scaffold provide supporting force for pressurization oil cylinder and plunger case.
7. a kind of constant pressure and constant flow control system of grouting as claimed in claim 6, it is characterized in that:Described pressurization oil cylinder includes Cylinder tube, oil cylinder cover, piston rod, oil cylinder piston and oil cylinder rubber ring, described cylinder tube are barrel-like structure, and oil was reserved in bottom Pore, openend open up internal thread connection oil cylinder cover, and oil cylinder cover anchor ring reserved oil pipe hole, and rod aperture is reserved in end face;Piston Rod end head connection oil cylinder piston is moved reciprocatingly through oil cylinder cover in cylinder tube by hydraulic oil effect;Oil cylinder piston outer ring surface opens up Multiple-sealed ring recess, to install sealing ring.
8. a kind of constant pressure and constant flow control system of grouting as claimed in claim 6, it is characterized in that:Described plunger case includes material Cylinder bucket, material cylinder lid, piston rod, material cylinder piston and material cylinder rubber ring, the material cylinder bucket are bicylindrical staving, and stock inlet is reserved in bottom And grout outlet, openend are connected by high-strength bolt with material cylinder lid;Reserve rod aperture in material cylinder lid end face;Piston rod end connects Material cylinder piston is covered through material cylinder and moved reciprocatingly in material cylinder bucket, and material cylinder piston outer ring surface opens up multiple-sealed ring recess, close to install Seal.
9. a kind of constant pressure and constant flow control system of grouting as claimed in claim 1, it is characterized in that:Described monitoring unit includes Electromagnetic flowmeter and pressure gauge, the grout outlet of two slip casting chambers are respectively mounted a set of electromagnetic flowmeter and pressure gauge, and the real time measure goes out Starch flow and pressure in pipe and servo control unit is delivered to by signal line;Described grout outlet is divided into two by slip casting chamber Road, it is connected respectively with two stock inlets of slip casting liquid mixer, slip casting liquid mixer grout outlet connects orifice tube by pressure duct, Orifice tube is installed in the earth formation.
10. based on the application method of system as claimed in any one of claims 1-9 wherein, it is characterized in that:By operating servo control Unit processed sets flow or pressure initial value, and then adjusts the pressure of the hydraulic oil of hydraulic pressure supply unit output, single according to monitoring Member transmits circuit through signal and transmits the flow of two kinds of liquid, pressure signal real time management servo control unit, is watched by control Taking control unit makes hydraulic pressure supply unit produce different oil pressure respectively and is applied to corresponding slip casting chamber, makes two kinds of slurries pulps Flow is different, so that two kinds of slurries ratio of two kinds of slurries when slip casting liquid mixer mixes reaches the requirement needed for engineering, Mixed slurries enter among orifice tube injection stratum until meeting slip casting ending standard by pressure duct.
CN201710780795.6A 2017-09-01 2017-09-01 A kind of constant pressure and constant flow control system of grouting and operating method Active CN107461373B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710780795.6A CN107461373B (en) 2017-09-01 2017-09-01 A kind of constant pressure and constant flow control system of grouting and operating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710780795.6A CN107461373B (en) 2017-09-01 2017-09-01 A kind of constant pressure and constant flow control system of grouting and operating method

Publications (2)

Publication Number Publication Date
CN107461373A true CN107461373A (en) 2017-12-12
CN107461373B CN107461373B (en) 2018-11-30

Family

ID=60550933

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710780795.6A Active CN107461373B (en) 2017-09-01 2017-09-01 A kind of constant pressure and constant flow control system of grouting and operating method

Country Status (1)

Country Link
CN (1) CN107461373B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110344591A (en) * 2019-06-25 2019-10-18 山东大学 A kind of single liquid automatic grouting refractory gunning equipment of realization and method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5634989A (en) * 1979-08-29 1981-04-07 Yamato Boring Kk Control system in injection pump
CN2751106Y (en) * 2004-11-12 2006-01-11 郑州知信机电科技开发有限公司 Proportional control high-pressure double liquid injection pump
CN202417868U (en) * 2012-01-05 2012-09-05 山东合兴科技发展有限公司 Mining double-liquid grouting device
CN202545207U (en) * 2012-04-01 2012-11-21 河南易安能源科技有限公司 Intelligent variable-frequency control fracturing pump set
CN204041410U (en) * 2014-09-19 2014-12-24 中国水电基础局有限公司 All-hydraulic grouting pump
CN106050595A (en) * 2016-07-12 2016-10-26 王永代 Double-liquid proportion-adjusting injection pump
KR101738922B1 (en) * 2017-01-05 2017-05-23 (주)대우건설 Auto grouting injection management system using proportional control
CN107080190A (en) * 2017-03-27 2017-08-22 珠海格力智能装备有限公司 Grouting device and its control method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5634989A (en) * 1979-08-29 1981-04-07 Yamato Boring Kk Control system in injection pump
CN2751106Y (en) * 2004-11-12 2006-01-11 郑州知信机电科技开发有限公司 Proportional control high-pressure double liquid injection pump
CN202417868U (en) * 2012-01-05 2012-09-05 山东合兴科技发展有限公司 Mining double-liquid grouting device
CN202545207U (en) * 2012-04-01 2012-11-21 河南易安能源科技有限公司 Intelligent variable-frequency control fracturing pump set
CN204041410U (en) * 2014-09-19 2014-12-24 中国水电基础局有限公司 All-hydraulic grouting pump
CN106050595A (en) * 2016-07-12 2016-10-26 王永代 Double-liquid proportion-adjusting injection pump
KR101738922B1 (en) * 2017-01-05 2017-05-23 (주)대우건설 Auto grouting injection management system using proportional control
CN107080190A (en) * 2017-03-27 2017-08-22 珠海格力智能装备有限公司 Grouting device and its control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110344591A (en) * 2019-06-25 2019-10-18 山东大学 A kind of single liquid automatic grouting refractory gunning equipment of realization and method

Also Published As

Publication number Publication date
CN107461373B (en) 2018-11-30

Similar Documents

Publication Publication Date Title
CN101333812B (en) Grouter for back side grouting and its construction method
CN102423655B (en) High-flow fracturing fluid distribution system and method
CN104632252B (en) Automatic grouting system
CN205477628U (en) Biliquid thick liquid device is annotated in step in shield driving
CN111263845B (en) Method and system for ensuring the quality of a multi-component mixture for rock consolidation
CN107461373A (en) A kind of constant pressure and constant flow control system of grouting and operating method
CN109403317A (en) A kind of triple pipe rotary spray bored pile system and pile making method
CN107632652B (en) A kind of slip casting Servocontrol device and operating method for indoor grouting simulation test
CN109855494A (en) A kind of perfusion equipment of static blasting cracking agent
CN102619722B (en) Hydraulic dual-fluid grouting pump
CN104264677B (en) A kind of Novel constant-pressure grouting device and method of operating
CN207997433U (en) A kind of slip casting/filling quickly preparing cement paste device
CN205895246U (en) Shield constructs with foam air multistage adjusting device
CN209745137U (en) Static blasting crushing agent filling equipment
CN108189234A (en) A kind of slip casting/filling quickly preparing cement paste device and method
CN109372488B (en) Swing type continuous proppant filling device for coal mine hydraulic fracturing and filling method
CN202338307U (en) Automatic eccentric water distributor
CN210829386U (en) Double-liquid grouting pipe for goaf treatment
CN107060706A (en) A kind of new on-line continuous prepares profile control transfer drive device
CN110273702A (en) A kind of coal seam substep water filling precisely controlling system and water-filling method
CN110130932A (en) A kind of rapid and handy formula jet groutinl device of suitable different condition
CN206710220U (en) A kind of mud-water converting device of prominent mud experiment
CN200964633Y (en) Hybrid grouting device for plugging high pressure underground water
CN104298265B (en) Constant-pressure grouting-water supply pneumatic combined servo control system for test
CN114508357A (en) Synchronous double-liquid grouting process for large-diameter shield tunnel

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant