CN104500464A - Grouting pump flow and flow proportion control method - Google Patents
Grouting pump flow and flow proportion control method Download PDFInfo
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- CN104500464A CN104500464A CN201410655945.7A CN201410655945A CN104500464A CN 104500464 A CN104500464 A CN 104500464A CN 201410655945 A CN201410655945 A CN 201410655945A CN 104500464 A CN104500464 A CN 104500464A
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- slip casting
- flow
- oil hydraulic
- hydraulic cylinder
- pump housing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/002—Hydraulic systems to change the pump delivery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Disclosed is a grouting pump flow and flow proportion control method. The method includes that an electromotor in a hydraulic pressure station is controlled through an inverter and drives a hydraulic pump of the hydraulic pressure station, the hydraulic pump supplies oil to a first three-position four-way electromagnetic directional valve and a second three-position four-way electromagnetic directional valve to control motion of a first hydraulic cylinder and a second hydraulic cylinder, feeding, discharging and stopping of a first grouting pump body and a second grouting pump body are realized, and when the first grouting pump body and the second grouting pump body are fed, feeding is performed through liquid inlets of the first grouting pump body and the second grouting pump body. The grouting pump flow and flow proportion control method is characterized in that when the first grouting pump body and the second grouting pump body are discharged, in other words, double liquid are mixed according to a certain proportion, control of the flow and flow proportion of the first grouting pump body and the second grouting pump body is realized by a pulse-width adjusting control method, the double liquid is mixed according a certain proportion, and then grouting is performed. The grouting pump flow and flow proportion can be controlled easily, efficiently, conveniently and accurately by the pulse-width adjusting control method.
Description
Technical field
The present invention relates to a kind of flow control method of grouting pump, when particularly a kind of Double-liquid mud-injection pump of filling system carries out slip casting, the biliquid mixed by a certain percentage is carried out to the method for flow and flow proportional control.
Background technique
At present, grouting pump flow control mode has two kinds, i.e. proportional valve control and Stroke Control, although proportional valve control is all adjustable to the output of mixing pump, flow proportional, operation is convenient, and need increase by two Proportional valves, structure is too complicated.Although Stroke Control structure is simple, only need to increase a displacement transducer on small flow oil hydraulic cylinder, but because two hydraulic cylinder synchronous are released, speed is almost consistent, therefore when two mixing ratios are large, can obviously there is the uneven problem of mixing, also need to increase a mixing link at mixing-end equipment.
Inventor retrieves following patent documentation: CN102721446A discloses a kind of shield-tunneling construction grouting amount method of measurement based on grouting pump stroke measurment and device, shield machine increases measurement accurate to grouting amount, real-time when a set of device realizes constructing, improve precision, the real-time of traditional original method of measurement, meet the highi degree of accuracy and high reliability request grouting amount measured under shield-tunneling construction environment.CN102767511A discloses a kind of automation Double-liquid mud-injection pump, comprise the pump housing and grouting pipe, the described pump housing is fixedly mounted on supporting wheel, described grouting pipe is provided with two, the bottom of grouting pipe is fixedly connected on the bottom of the pump housing by conveyance conduit, be provided with pressure gauge above described grouting pipe, the conveyance conduit between grouting pipe and the described pump housing is provided with flow control valve.CN101127500A discloses a kind of DC frequency conversion controller and controls the method for speed of permanent magnetic synchronous electromotor rotor, comprises the Speed Setting amount providing a reference; Sampling phase current; Carry out speed and current ratio integral adjustment and sinusoidal vector pulse-width according to Speed Setting amount and phase current to regulate, obtain the three-phase voltage signal of permagnetic synchronous motor running; Reconstruct and accordingly phase voltage value drive permanent-magnetic synchronous motor rotor rotate; Phase voltage value according to reconstruct carries out rotor position slip form observation, obtains rotor estimated position and estimating speed, and by the estimating speed of rotor.It also has DC frequency conversion controller, comprise input device, sampling apparatus, two controlling devices, speed and current ratio integral adjustment are carried out to Speed Setting amount and estimating speed, two converter carry out two kinds of conversion respectively, sliding mode observer, according to the electric current after the phase voltage of reconstruct and conversion for the first time, produce the rotor-position signal angle estimation value after dynamic compensation; Reconfigurating device, forms the estimating speed of rotor to the rotor-position signal angle estimation value reconstruct of reconstruct.
Above these technology for how to provide a kind of can more simply, control the method for grouting pump flow and flow proportional accurately, do not provide concrete guidance program.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of method that grouting pump flow and flow proportional control, and the method more simply, efficiently, conveniently, accurately can control grouting pump flow and flow proportional.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of method that grouting pump flow and flow proportional control, it is that the two fluid grouting pump housing is mixed by certain proportion, then slip casting, in grouting pump work, the annexation of each parts is: the oil hydraulic pump in hydraulic station, fuel tank is respectively by the oil inlet and outlet of hydraulic pipe line and the first three-position four-way electromagnetic directional valve, the oil inlet and outlet of the second three-position four-way electromagnetic directional valve is connected, the hydraulic oil of the first three-position four-way electromagnetic directional valve is imported and exported, the hydraulic oil of the second three-position four-way electromagnetic directional valve import and export respectively with the hydraulic fluid port of the first oil hydraulic cylinder, the hydraulic fluid port of the second oil hydraulic cylinder is connected, piston in first oil hydraulic cylinder, piston in second oil hydraulic cylinder is respectively by the piston rod first material conveying cylinder i.e. first slip casting pump housing corresponding with it, the second material conveying cylinder i.e. second slip casting pump housing is in transmission connection, the left-right switch of the first oil hydraulic cylinder, the left-right switch of the second oil hydraulic cylinder is connected with the input end of controller respectively, 2 road output terminals of controller respectively with the coil of the first three-position four-way electromagnetic directional valve, the coil of the second three-position four-way electromagnetic directional valve is connected, another road of controller exports and is connected on frequency variator, the output terminal of frequency variator is connected with the tenminal block of the motor in hydraulic station, grouting pump working procedure and operating procedure are: adopt the motor in Frequency Converter Control hydraulic station, oil hydraulic pump in described motoring hydraulic station, oil hydraulic pump fuel feeding gives the first three-position four-way electromagnetic directional valve, the second three-position four-way electromagnetic directional valve, control the first oil hydraulic cylinder, the second oil hydraulic cylinder left, to the right, stop motion, realize the first slip casting pump housing, the charging of the second slip casting pump housing, discharging and stopping, when the first slip casting pump housing, the second slip casting pump housing charging, respectively by the liquid entering hole of the first slip casting pump housing, the liquid entering hole charging of the second slip casting pump housing, its technological scheme is when the first slip casting pump housing, the second slip casting pump housing discharging, namely when biliquid mixes by a certain percentage, the first slip casting pump housing, the flow of the second slip casting pump housing and the control of flow proportional is realized by pulse-width regulated control mode, biliquid mixes with certain proportion, then slip casting.
In technique scheme, when pulse-width regulated controls, preferably with the first three-position four-way electromagnetic directional valve, the closing time of the three-position four-way electromagnetic directional valve of second one of them large discharge of three-position four-way electromagnetic directional valve is benchmark, in flow set ratio, the closing time of the three-position four-way electromagnetic directional valve of automatic calculating small flow, above-mentioned large discharge is by measuring the first oil hydraulic cylinder, in second oil hydraulic cylinder the oil hydraulic cylinder of large discharge left-right switch (or perhaps left and right position limit switch) between travel time calculate, its Flow-rate adjustment is controlled by the pulse-width regulated of the oil hydraulic cylinder of frequency variator and described large discharge.During pulse-width regulated controls, during two kinds of mixing of materials, to the release time best uniform distribution of wherein a kind of material (B material) in the process of the release time of another kind of material (A material), thus solve two kinds of mixed uniformly problems of material.
The present invention is when the first slip casting pump housing, the second slip casting pump housing discharging, namely when biliquid mixes by a certain percentage, realize the first slip casting pump housing, the flow of the second slip casting pump housing and the control of flow proportional by pulse-width regulated control mode, biliquid mixes with certain proportion, then slip casting.Pulse-width regulated technological method of the present invention, do not need to add other devices, cost is low, good mixing property.Compared with above-mentioned (in background technique) two kinds of controlling methods, in two kinds of liquid mixing by a certain percentage, pulse-width regulated controlling method of the present invention more simply, efficiently, conveniently, accurately can control grouting pump flow and flow proportional, and it has outstanding substantive distinguishing features and progress significantly.
Accompanying drawing explanation
Fig. 1 is slip casting machine working procedure structured flowchart.
Fig. 2 is during pulse-width regulated controls, during two kinds of mixing of materials, by the schematic diagram of release time uniform distribution in the process of the release time of another kind of material of wherein a kind of material.
Embodiment
As shown in Figure 1, the method that grouting pump flow of the present invention and flow proportional control, it is that the two fluid grouting pump housing is mixed by certain proportion, then slip casting, in grouting pump work, the annexation of each parts is: the oil hydraulic pump 101 in hydraulic station 1, fuel tank 103 is respectively by the oil inlet and outlet of hydraulic pipe line and the first three-position four-way electromagnetic directional valve 3, the oil inlet and outlet of the second three-position four-way electromagnetic directional valve 4 is connected, the hydraulic oil of the first three-position four-way electromagnetic directional valve 3 is imported and exported, the hydraulic oil of the second three-position four-way electromagnetic directional valve 4 import and export respectively with the hydraulic fluid port of the first oil hydraulic cylinder 5, the hydraulic fluid port of the second oil hydraulic cylinder 6 is connected, piston in first oil hydraulic cylinder 5, piston in second oil hydraulic cylinder 6 is respectively by the piston rod first material conveying cylinder i.e. first slip casting pump housing 7 corresponding with it, the second material conveying cylinder i.e. second slip casting pump housing 8 is in transmission connection, the left-right switch (9 and 10) of the first oil hydraulic cylinder 5, the left-right switch (11 and 12) of the second oil hydraulic cylinder 6 is connected with the input end of controller 16 respectively, first, the left-right switch of two oil hydraulic cylinders can be position limit switch, for prior art.2 road output terminals of controller 16 are connected with the coil of the first three-position four-way electromagnetic directional valve 3, the coil of the second three-position four-way electromagnetic directional valve 4 respectively, and another road of controller 16 exports and is connected on frequency variator 2.In Fig. 1, mark 17, mark 18 are respectively the two way reversing valve guide lines be applied in the first three-position four-way electromagnetic directional valve, the second three-position four-way electromagnetic directional valve.The output terminal of frequency variator 2 is connected with the tenminal block of the motor 102 in hydraulic station 1.Above-mentioned controller 16 comprises CPU, and controller, frequency variator are originally as prior art.Grouting pump working procedure and operating procedure are: adopt the motor 102 in frequency variator 2 hydraulic control station 1, described motor 102 drives the oil hydraulic pump 101 in hydraulic station 1, oil hydraulic pump 101 fuel feeding gives the first three-position four-way electromagnetic directional valve 3, second three-position four-way electromagnetic directional valve 4, control the first oil hydraulic cylinder 5, second oil hydraulic cylinder 6 left, to the right, stop motion, realize the charging of the first slip casting pump housing 7, the second slip casting pump housing 8, discharging and stopping.Mark P in Fig. 1 and represent filler opening, mark T indicates hydraulic fluid port.The left end hydraulic fluid port of the first oil hydraulic cylinder, the second oil hydraulic cylinder is represented by label L, mark R represents the right-hand member hydraulic fluid port of the first oil hydraulic cylinder, the second oil hydraulic cylinder, carried out the action of hydraulic control cylinder by the Relative Transformation of P, T, L, R tetra-positions, and then realize the turnover state to material in the first slip casting pump housing, the second slip casting pump housing.When the first oil hydraulic cylinder, the second oil hydraulic cylinder are to left movement, the first slip casting pump housing 7, the second slip casting pump housing 8 is respectively by liquid entering hole 14 charging of liquid entering hole 13, the second slip casting pump housing of the first slip casting pump housing; First slip casting pump housing loaded material A, the second slip casting pump housing loaded material B.When the first oil hydraulic cylinder, the second oil hydraulic cylinder move right, two kinds of materials mix at mixer 15 with certain proportion, then slip casting.When the first oil hydraulic cylinder, the second oil hydraulic cylinder are in halted state, the first slip casting pump housing, the second slip casting pump housing stop and not working.It is characterized in that when the first slip casting pump housing 7, the second slip casting pump housing 8 discharging, namely when biliquid mixes by a certain percentage, the flow of the first slip casting pump housing 7, the second slip casting pump housing 8 and the control of flow proportional is realized by pulse-width regulated control mode, biliquid mixes with certain proportion, then slip casting.
This working procedure above-mentioned, controlled by controller 16, as previously mentioned, the left-handed opening 9 of the first oil hydraulic cylinder 5 and right switch 10 are connected on controller 16, the left-handed opening 11 of the second oil hydraulic cylinder 6 and right switch 12 are also connected on controller 16, and the flow of the first slip casting pump housing, the second slip casting pump housing is fed back to controller by the first oil hydraulic cylinder, the second oil hydraulic cylinder at any time.2 road output terminals of controller are connected on the coil of first and second three-position four-way electromagnetic directional valve, another road of controller is connected on frequency variator, controller is by calculating the signal of input, regulate frequency variator, control first and second three-position four-way electromagnetic directional valve, and then adjust flux and flow proportional.
Using the time that above-mentioned material A is released by the first oil hydraulic cylinder effect as input quantity, regulate above-mentioned material B by the release time of the second oil hydraulic cylinder effect, thus both realizing, the ratio of speed is controlled.Second oil hydraulic cylinder speed to introduce V
b=L
b/ t
b, suppose L
a=L
band t
acan survey, so by adjusting t
b, the Ratio control to mixture can be realized.In formula, L
b, L
abe respectively the working stroke of the second oil hydraulic cylinder, the first oil hydraulic cylinder, t
b, t
abe respectively the release time of the second oil hydraulic cylinder, the first oil hydraulic cylinder.When such pulse-width regulated controls, with the closing time of the first three-position four-way electromagnetic directional valve of large discharge for benchmark, in flow set ratio, the closing time of the second three-position four-way electromagnetic directional valve of automatic calculating small flow, above-mentioned large discharge is by measuring the first oil hydraulic cylinder, in second oil hydraulic cylinder the oil hydraulic cylinder (such as the first oil hydraulic cylinder) of large discharge left-right switch (or perhaps left and right position limit switch) between travel time calculate, its Flow-rate adjustment is controlled by the pulse-width regulated of the oil hydraulic cylinder (such as the first oil hydraulic cylinder) of frequency variator and described large discharge.
For solving above-mentioned material B and the mixed uniformly problem of material A, and in the time course released in material A of the time uniform distribution that material B is released.By the regulating time of material B by the segmentation of certain width, such as can split by the time of 2 seconds.As material A releases used time (Q
a) be 10 seconds, proportions of ingredients be 2:1 so, material B release the time be 5 seconds.Then controlled by pulse-width regulated, the release time of 5 seconds is evenly distributed in 10 seconds processes of material A release (by uniform distribution in 10 seconds material A used times process in 5 seconds), forms sequential as shown in Figure 2.
The present invention is that one is applied in slip casting process, when two kinds of liquid in Double-liquid mud-injection pump mix with certain proportion, to a kind of pulse-width regulated controlling method that flow and the flow proportional of two kinds of liquid control, the method more simply, efficiently, conveniently, accurately can control grouting pump flow and flow proportional.
Claims (3)
1. the method for a grouting pump flow and flow proportional control, it is that the two fluid grouting pump housing is mixed by certain proportion, then slip casting, in grouting pump work, the annexation of each parts is: the oil hydraulic pump (101) in hydraulic station (1), fuel tank (103) is respectively by the oil inlet and outlet of hydraulic pipe line and the first three-position four-way electromagnetic directional valve (3), the oil inlet and outlet of the second three-position four-way electromagnetic directional valve (4) is connected, the hydraulic oil of the first three-position four-way electromagnetic directional valve (3) is imported and exported, the hydraulic oil of the second three-position four-way electromagnetic directional valve (4) import and export respectively with the hydraulic fluid port of the first oil hydraulic cylinder (5), the hydraulic fluid port of the second oil hydraulic cylinder (6) is connected, piston in first oil hydraulic cylinder (5), piston in second oil hydraulic cylinder (6) is respectively by the piston rod first material conveying cylinder i.e. first slip casting pump housing (7) corresponding with it, the second material conveying cylinder i.e. second slip casting pump housing (8) is in transmission connection, the left-right switch of the first oil hydraulic cylinder (5), the left-right switch of the second oil hydraulic cylinder (6) is connected with the input end of controller (16) respectively, 2 road output terminals of controller (16) respectively with the coil of the first three-position four-way electromagnetic directional valve (3), the coil of the second three-position four-way electromagnetic directional valve (4) is connected, another road of controller (16) exports and is connected on frequency variator (2), the output terminal of frequency variator (2) is connected with the tenminal block of the motor (102) in hydraulic station (1), grouting pump working procedure and operating procedure are: adopt the motor (102) in frequency variator (2) hydraulic control station (1), described motor (102) drives the oil hydraulic pump (101) in hydraulic station (1), oil hydraulic pump (101) fuel feeding gives the first three-position four-way electromagnetic directional valve (3), second three-position four-way electromagnetic directional valve (4), control the first oil hydraulic cylinder (5), second oil hydraulic cylinder (6) left, to the right, the motion stopped, realize the first slip casting pump housing (7), the charging of the second slip casting pump housing (8), discharging and stopping, when the first slip casting pump housing (7), during the second slip casting pump housing (8) charging, respectively by the liquid entering hole (13) of the first slip casting pump housing, liquid entering hole (14) charging of the second slip casting pump housing, it is characterized in that when the first slip casting pump housing (7), the second slip casting pump housing (8) discharging, namely when biliquid mixes by a certain percentage, the first slip casting pump housing (7), the flow of the second slip casting pump housing (8) and the control of flow proportional is realized by pulse-width regulated control mode, biliquid mixes with certain proportion, then slip casting.
2. the method for grouting pump flow according to claim 1 and flow proportional control, when it is characterized in that pulse-width regulated controls, with the closing time of the three-position four-way electromagnetic directional valve of the first three-position four-way electromagnetic directional valve (3), the second three-position four-way electromagnetic directional valve (4) one of them large discharge for benchmark, in flow set ratio, automatically calculate the closing time of the three-position four-way electromagnetic directional valve of small flow; Above-mentioned large discharge be oil hydraulic cylinder by measuring large discharge in the first oil hydraulic cylinder, the second oil hydraulic cylinder left-right switch between travel time calculate, its Flow-rate adjustment is controlled by the pulse-width regulated of the oil hydraulic cylinder of frequency variator and described large discharge.
3. the method that controls of grouting pump flow according to claim 1 and flow proportional, in it is characterized in that pulse-width regulated controls, during two kinds of mixing of materials, by the release time uniform distribution of wherein a kind of material in the process of the release time of another kind of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410655945.7A CN104500464B (en) | 2014-11-17 | 2014-11-17 | Grouting pump flow and the method for ratio flow control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410655945.7A CN104500464B (en) | 2014-11-17 | 2014-11-17 | Grouting pump flow and the method for ratio flow control |
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| Publication Number | Publication Date |
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| CN104500464A true CN104500464A (en) | 2015-04-08 |
| CN104500464B CN104500464B (en) | 2016-08-17 |
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| CN201410655945.7A Expired - Fee Related CN104500464B (en) | 2014-11-17 | 2014-11-17 | Grouting pump flow and the method for ratio flow control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552721A (en) * | 2019-10-23 | 2019-12-10 | 阳铁机械（杭州）有限公司 | double-liquid wall post-grouting equipment |
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| CN110552721A (en) * | 2019-10-23 | 2019-12-10 | 阳铁机械（杭州）有限公司 | double-liquid wall post-grouting equipment |
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| CN104500464B (en) | 2016-08-17 |
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