CN111622914A - Concrete pumping system, concrete pumping equipment and control method - Google Patents
Concrete pumping system, concrete pumping equipment and control method Download PDFInfo
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- CN111622914A CN111622914A CN202010477918.0A CN202010477918A CN111622914A CN 111622914 A CN111622914 A CN 111622914A CN 202010477918 A CN202010477918 A CN 202010477918A CN 111622914 A CN111622914 A CN 111622914A
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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
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
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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
- F04B49/002—Hydraulic systems to change the pump delivery
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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
- F04B49/06—Control using electricity
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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
- F04B51/00—Testing machines, pumps, or pumping installations
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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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
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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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
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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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention provides a concrete pumping system, concrete pumping equipment and a control method. The concrete pumping system comprises: the hopper is internally provided with a switching pipe; the pumping mechanism comprises two conveying cylinders and is suitable for pumping concrete materials; the conveying pipe is selectively communicated with the two conveying cylinders through the switching pipe and is suitable for conveying concrete materials; the detection device is arranged on the conveying pipe and is suitable for acquiring the output parameters of the concrete material flowing through the conveying pipe; the control device is in communication connection with the detection device; the control device is used for acquiring the output parameters of the detection device and controlling the pumping frequency of the pumping mechanism according to the output parameters. The invention can resist the flow resistance of the fluid materials in the concrete pumping system, namely: and (4) measuring the pipe loss accurately, and improving the efficiency and the accuracy of product design, process optimization and use debugging process.
Description
Technical Field
The invention relates to the technical field of concrete pumping systems, in particular to a concrete pumping system, concrete pumping equipment and a control method.
Background
The concrete pumping system is used for pumping the building construction materials such as concrete, mortar and cement which can flow. How to accurately collect and count the material flow in a concrete pumping system is always a technical problem to be solved urgently in the field.
Disclosure of Invention
The present invention is directed to solving at least one of the above problems.
To this end, a first object of the present invention is to provide a concrete pumping system.
A second object of the present invention is to provide a concrete pumping apparatus.
The third purpose of the invention is to provide a control method of the concrete pumping system.
To achieve the first object of the present invention, an embodiment of the present invention provides a concrete pumping system, including: the hopper is internally provided with a switching pipe; the pumping mechanism comprises two conveying cylinders and is suitable for pumping concrete materials; the conveying pipe is selectively communicated with the two conveying cylinders through the switching pipe and is suitable for conveying concrete materials; the detection device is arranged on the conveying pipe and is suitable for acquiring the output parameters of the concrete material flowing through the conveying pipe; the control device is in communication connection with the detection device; the control device is used for acquiring the output parameters of the detection device and controlling the pumping frequency of the pumping mechanism according to the output parameters.
This embodiment adopts detection device to carry out real-time detection and collection to the concrete material. When the concrete material flows through the detection device, an induction signal is generated between the concrete material and the detection device, and the detection device judges and obtains output parameters such as the flow or the volume of the concrete material flowing through the detection device according to the induction signal generated by the induction signal. When accurate output parameters are obtained, the control device can correspondingly control the pumping frequency of the pumping mechanism so as to achieve the purposes of improving the production efficiency, saving the production cost and improving the production quality.
In addition, the technical solution provided by the above embodiment of the present invention may further have the following additional technical features:
in the above technical solution, the output parameter includes at least one of the following or a combination thereof: flow, flow rate, volume, pumping efficiency of concrete output.
In this embodiment, the flow rate refers to the total amount of concrete material flowing through at a certain point in time. The flow rate of the present embodiment may be calculated statistically, for example, in cubic meters per minute. The flow rate is the flow rate of the concrete material actually flowing through the concrete material in a certain period of time. The flow velocity of the present embodiment may be calculated and counted in units of meters/minute, meters/second, and the like. Pumping efficiency refers to the volume of concrete material that actually flows through over a certain period of time.
In any of the above technical solutions, the pumping mechanism further includes: the two main oil cylinders are respectively in driving connection with the two conveying cylinders; the control valves are arranged on the driving oil paths of the two main oil cylinders; the control device is also connected with the control valve and used for controlling the actions of the two main oil cylinders through the control valve so as to control the pumping frequency of the pumping mechanism.
In the embodiment, the control device controls the two master cylinders to act through the control valve, so that the pumping frequency can be stably and accurately controlled.
In any of the above technical solutions, the pumping efficiency is the volume of the pumped concrete in unit time, the pumping frequency is the reversing times of the two master cylinders in unit time, and the control device is configured to determine a target pumping frequency interval according to the relationship between the pumping efficiency and the pumping frequency, and control the reversing of the two master cylinders through the control valve, so that the pumping mechanism operates in the target pumping frequency interval.
The control device determines a target pumping frequency interval according to the relation between the pumping efficiency and the pumping frequency, and then the control valve further performs reversing under the control of the control device. Therefore, the pumping mechanism can be controlled according to the target pumping frequency interval, so that the pumping mechanism can be ensured to operate in the target pumping frequency interval.
Among any one of the above-mentioned technical scheme, detection device is electromagnetic flow sensor, and electromagnetic flow sensor installs on the ascending output section of slope of conveyer pipe.
The electromagnetic flow sensor may be mounted at any position on the output section in the inclined upward direction. The electromagnetic flow sensor is also provided with a ceramic lining as a protective lining layer. The protective lining layer can greatly improve the wear resistance of the product so as to resist the erosion of concrete to the pipe wall and prolong the service life of the product.
In any one of the above technical solutions, the detecting device includes an electromagnetic induction detecting device, and the electromagnetic induction detecting device includes: a magnetic field applying unit adapted to apply a magnetic field to the concrete material so that the concrete material generates an induced voltage; the acquisition unit is suitable for acquiring the induction voltage and outputting an acquisition signal according to the induction voltage; and the processing unit is suitable for receiving the acquired signals and acquiring output parameters according to the acquired signals.
The embodiment can acquire the acquisition signal corresponding to the flow velocity of the concrete material. The device has the advantages of high precision, sensitive reaction, simple structure, low cost and convenient installation.
In any of the above technical solutions, the delivery pipe includes: detecting a pipeline section; the protective lining layer is arranged on the periphery of the inner wall of the detection pipeline section; the detection device is arranged on the detection pipeline section and is suitable for detecting concrete materials flowing through the detection pipeline section.
The function of the protective lining layer is to effectively protect the inner wall of the section of the pipeline flowing through the detection pipeline. The protective lining layer is made of materials with excellent wear resistance, and can greatly improve the wear resistance of the detection pipeline section flowing through the protective lining layer, so that the detection pipeline section can resist the scouring or impact of materials such as cement, mortar and concrete on the pipe wall of the detection pipeline section, and the service life of the detection pipeline section is prolonged.
In any of the above technical solutions, the protective lining layer includes at least one of: the ceramic material protects the inner liner, the metal material protects the inner liner, and the wear-resistant composite material protects the inner liner.
The ceramic material protection lining layer of the embodiment can be obtained by sintering inorganic nonmetallic oxides such as silicon oxide, aluminum oxide, zirconium oxide and the like at high temperature. The ceramic material protects the lining layer, has high mechanical strength and excellent wear resistance, and can greatly withstand the scouring or impact of materials such as cement, mortar, concrete and the like.
In any of the above technical solutions, the first connection portion; the second connecting part is arranged on the detection pipeline section; a fastener; wherein, first connecting portion and second connecting portion mutually support, and the fastener runs through first connecting portion and second connecting portion respectively to fixed detection pipeline section.
The first connecting portion and the second connecting portion are arranged in pairs and are mutually connected and matched. Thereby, the pipe section and the conveying pipe can be aligned and connected with each other.
To achieve the second object of the present invention, an embodiment of the present invention provides a concrete pumping apparatus including: a chassis; according to the concrete pumping system provided by any embodiment of the invention, the concrete pumping system is arranged on the chassis.
The concrete pumping equipment of the embodiment comprises the concrete pumping system as in any embodiment of the invention, has all the beneficial effects of the concrete pumping system as in any embodiment of the invention, and is not described herein again.
To achieve the third object of the present invention, an embodiment of the present invention provides a control method for a concrete pumping system, which is suitable for controlling the concrete pumping system according to any embodiment of the present invention, and the control method for the concrete pumping system includes the following steps: acquiring output parameters of concrete materials in a pumping mechanism; controlling the pumping frequency of the pumping mechanism according to the output parameters; wherein, the output parameter comprises at least one of the following or the combination thereof: flow, flow rate, volume, pumping efficiency of concrete output.
The control method of the concrete pumping system according to the embodiment is suitable for controlling the concrete pumping system according to any embodiment of the present invention, and has all the advantages of the concrete pumping system according to any embodiment of the present invention, and details are not repeated herein.
In the above technical solution, the output parameter includes a pumping efficiency, and the step of controlling the pumping frequency of the pumping mechanism according to the output parameter includes: determining a target pumping frequency interval according to the relation between the pumping efficiency and the pumping frequency; controlling the pumping mechanism to adjust a pumping frequency of the pumping mechanism to the target pumping frequency interval.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a related art pumping apparatus for substantially sucking material;
FIG. 2 is a schematic view showing insufficient suction of a pumping device in the related art;
FIG. 3 is a schematic structural diagram of a concrete pumping system according to some embodiments of the present invention;
FIG. 4 is a schematic diagram of the components of a detection apparatus according to some embodiments of the present invention;
FIG. 5 is a graphical illustration of pumping efficiency versus pumping frequency for a concrete pumping system according to some embodiments of the present invention;
FIG. 6 is a flow chart of a first step of a control method of a concrete pumping system according to some embodiments of the present invention;
FIG. 7 is a flow chart of a second step of a control method of a concrete pumping system according to some embodiments of the present invention;
FIG. 8 is a perspective view of a concrete pumping system according to some embodiments of the present invention;
fig. 9 is a schematic composition diagram of concrete pumping equipment according to some embodiments of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 2 is:
100': concrete pumping system, 200': and (3) concrete materials.
The correspondence between the reference numerals and the names of the components in fig. 3 to 9 is:
100: concrete pumping system, 110: a hopper, 112: switching tube, 120: pumping mechanism, 122: delivery cylinder, 124: master cylinder, 126: control valve, 130: delivery pipe, 132: detection line section, 134: protective liner layer, 136: inclined upward output section, 140: detection means, 142: magnetic field applying unit, 144: acquisition unit, 146: processing unit, 150: control device, 160: first connection portion, 170: second connection portion, 180: fastener, 200: and (3) concrete materials.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A concrete pumping system 100 and a control method of the concrete pumping system according to some embodiments of the present invention will be described with reference to fig. 1 to 9.
Concrete pumping systems, such as pump trucks, trailer pumps, and truck pumps, are capable of pumping flowable materials, such as concrete, mortar, cement, and the like. In the pumping process, an operator needs to collect and count the pumping flow of the material so as to know the real-time material pumping state of the concrete pumping system. The material pumping state mainly comprises the flow rate and/or volume of the material. The pumping volume is also called pumping volume, and the pumping volume refers to the volume quantity of the concrete material in unit of cubic meter.
In order to acquire the information, the technical scheme of detecting the discharge volume of the discharge hole of the concrete pumping system by a visual sensor is adopted in the related technology to realize the measurement of the discharge volume. However, there are disadvantages in that: the visual sensor can not realize accurate detection of the discharge volume. In addition, the related art also has a technical scheme of obtaining the discharge volume through theoretical calculation. The scheme utilizes the pump times to multiply the geometric dimension of the conveying cylinder to obtain the theoretical discharge volume. However, the theoretical value obtained by calculation is generally different from the actual value. The reason for this is that the theoretical calculation does not take into account the suction efficiency during the pumping process. For example, as shown in fig. 1, the related art employs a concrete pumping system 100 'to pump and convey concrete materials 200', and calculates a theoretical discharge volume according to a formula. However, fig. 1 shows the concrete material pumping situation in an ideal or theoretical state. As shown in fig. 2, it is impossible for the delivery cylinder to be filled with concrete material during the actual pumping process. Therefore, the actual suction efficiency is often less than 100%, but the theoretical calculation is carried out according to the suction efficiency of 100%. Therefore, the technical solutions of theoretical calculation in the related art still cannot obtain accurate pumping flow and/or volume.
In view of the above, the following embodiments of the present invention improve the concrete pumping system 100 and the control method of the concrete pumping system, and thereby achieve the purpose of accurately collecting and counting the pumping flow and/or volume.
Example 1:
the present embodiment provides a concrete pumping system 100, including: a hopper 110, wherein a switching pipe 112 is arranged in the hopper 110; a pumping mechanism 120 comprising two delivery cylinders 122 adapted to pump concrete material 200; a conveying pipe 130, the conveying pipe 130 being selectively communicated with the two conveying cylinders 122 through the switching pipe 112, adapted to convey the concrete material 200; the detection device 140 is arranged on the conveying pipe 130 and is suitable for acquiring the output parameters of the concrete material 200 flowing through the conveying pipe 130; the control device 150 is in communication connection with the detection device 140; the control device 150 is configured to obtain an output parameter of the detection device 140, and control the pumping frequency of the pumping mechanism 120 according to the output parameter.
In this embodiment, the concrete pumping system 100 functions to pump concrete materials 200 such as concrete, mortar, cement, and the like. It has a pipe structure in which concrete material 200 flows to be delivered to a target location. The detection device 140 is used for accurately detecting and acquiring the flow performance parameters of the concrete material 200. The flow property parameter can be directly measured by the detection device 140, or can be calculated or characterized by using the detection result after the detection device 140 obtains the detection result.
In this embodiment, the detection device 140 is adopted to detect and collect the concrete material 200 in real time. When the concrete material 200 flows through the detection device 140, an induction signal is generated between the concrete material 200 and the detection device 140, and the detection device 140 determines and obtains output parameters such as flow rate or volume of the concrete material 200 flowing through the detection device 140 according to the induction signal generated thereby. When the precise output parameters are obtained, the control device 150 can correspondingly control the pumping frequency of the pumping mechanism 120, so as to achieve the purposes of improving the production efficiency, saving the production cost and improving the production quality.
Example 2:
the present embodiment provides a concrete pumping system 100, and in addition to the technical features of the above embodiments, the present embodiment further includes the following technical features.
The output parameters include at least one or a combination of the following: flow, flow rate, volume, pumping efficiency of concrete output.
In this embodiment, the flow rate refers to the total amount of the concrete material 200 flowing through at a certain point in time. The flow rate of the present embodiment may be calculated statistically, for example, in cubic meters per minute. The flow rate refers to the flow rate of the concrete material 200 actually flowing through for a certain period of time. The flow velocity of the present embodiment may be calculated and counted in units of meters/minute, meters/second, and the like. Pumping efficiency refers to the volume of concrete material 200 that actually flows through over a certain period of time. The volume may be characterized according to any one of the flow rate, the flow velocity, or the volume of the concrete material 200, or may be characterized by a coefficient value without a specific unit, for example: the pumping efficiency is 80% or 90%, or the pumping efficiency is 0.7 or 0.75, etc.
Example 3:
the present embodiment provides a concrete pumping system 100, and in addition to the technical features of the above embodiments, the present embodiment further includes the following technical features.
As shown in fig. 8, the pumping mechanism 120 further includes: two main oil cylinders 124 which are respectively connected with the two conveying cylinders 122 in a driving way; and a control valve 126 provided on the drive oil paths of the two master cylinders 124. The control device 150 is also connected to the control valve 126 for controlling the operation of the two master cylinders 124 through the control valve 126, thereby controlling the pumping frequency of the pumping mechanism 120.
In this embodiment, the control device 150 controls the two master cylinders 124 to operate through the control valve 126, so that the pumping frequency can be stably and accurately controlled in this embodiment.
Example 4:
the present embodiment provides a concrete pumping system 100, and in addition to the technical features of the above embodiments, the present embodiment further includes the following technical features.
The pumping efficiency is the volume of the concrete pumped in unit time, the pumping frequency is the reversing times of the two main oil cylinders 124 in unit time, and the control device 150 is used for determining a target pumping frequency interval according to the relation between the pumping efficiency and the pumping frequency and controlling the reversing of the two main oil cylinders 124 through the control valve 126 so as to enable the pumping mechanism 120 to operate in the target pumping frequency interval.
In this embodiment, the control device 150 determines the target pumping frequency interval according to the relationship between the pumping efficiency and the pumping frequency, and the control valve 126 further performs the reversing under the control of the control device 150. Therefore, the present embodiment can control the pumping mechanism 120 according to the target pumping frequency interval, so as to ensure that the pumping mechanism 120 operates in the target pumping frequency interval.
Example 5:
the present embodiment provides a concrete pumping system 100, and in addition to the technical features of the above embodiments, the present embodiment further includes the following technical features.
The sensing device 140 is an electromagnetic flow sensor mounted on the angled upward output section 136 of the delivery tube 130.
The electromagnetic flow sensor may be mounted at any position on the output section in the inclined upward direction. The electromagnetic flow sensor is also fitted with a ceramic liner as a protective liner layer 134. The protective lining layer 134 can greatly improve the wear resistance of the product so as to resist the erosion of concrete to the pipe wall and prolong the service life of the product.
Example 6:
as shown in fig. 4, the present embodiment provides a concrete pumping system 100, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.
The detection device 140 includes an electromagnetic induction detection device including: a magnetic field applying unit 142 adapted to apply a magnetic field to the concrete material 200 so that the concrete material 200 generates an induced voltage; an acquisition unit 144 adapted to acquire the induced voltage and output an acquisition signal according to the induced voltage; the processing unit 146 is adapted to receive the collected signals and obtain output parameters according to the collected signals.
The detection device 140 of the present embodiment operates using faraday's law of electromagnetic induction. The concrete material 200 such as cement, mortar, concrete, etc. has a minimum electrical conductivity that can be measured by the detection device 140. The magnetic field applying unit 142 applies a magnetic field to the concrete material 200, and the concrete material 200 makes a magnetic line cutting motion while flowing through the magnetic field applying unit 142, and generates an induced voltage. The strength of the induced voltage generated by the concrete material 200 is proportional to the flow velocity of the concrete material 200, and the faster the concrete material 200 flows, the greater the induced voltage generated by the concrete material 200.
In this way, the present embodiment can acquire the acquisition signal corresponding to the flow rate of the concrete material 200. The device has the advantages of high precision, sensitive reaction, simple structure, low cost and convenient installation.
Example 7:
as shown in fig. 3, the present embodiment provides a concrete pumping system 100, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.
The delivery pipe 130 includes: detecting a pipeline segment 132; the protective lining layer 134 is arranged on the periphery of the inner wall of the detection pipeline section 132; the detection device 140 is disposed on the detection pipeline section 132, and is adapted to detect the concrete material 200 flowing through the detection pipeline section 132.
In this embodiment, the protective lining 134 is used to effectively protect the inner wall of the detection pipe section 132. The protective lining 134 is made of a material with excellent wear resistance, which can greatly improve the wear resistance of the detection pipeline section 132, so that the detection pipeline section 132 can resist the scouring or impact of materials such as cement, mortar and concrete on the pipe wall, and the service life of the detection pipeline section 132 is prolonged.
Example 8:
as shown in fig. 5, the present embodiment provides a concrete pumping system 100, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.
The protective liner layer 134 includes at least one of: the ceramic material protects the inner liner, the metal material protects the inner liner, and the wear-resistant composite material protects the inner liner.
The ceramic material protection lining layer of the embodiment can be obtained by sintering inorganic nonmetallic oxides such as silicon oxide, aluminum oxide, zirconium oxide and the like at high temperature. The ceramic material protects the lining layer, has high mechanical strength and excellent wear resistance, and can greatly withstand the scouring or impact of materials such as cement, mortar, concrete and the like.
Example 9:
as shown in fig. 3, the present embodiment provides a concrete pumping system 100, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.
Further comprising: a first connection portion 160; a second connection part 170 provided on the detection pipe section 132; a fastener 180; wherein, the first connection part 160 and the second connection part 170 are mutually matched, and the fastening member 180 respectively penetrates through the first connection part 160 and the second connection part 170 to fix the detection pipeline section.
Specifically, the first connection portion 160 protrudes outward, and the second connection portion 170 protrudes outward from the side periphery of the detection line segment 132. The first and second connection portions 160 and 170 are provided in pairs and coupled to each other. Thereby, the alignment and connection between the measuring pipe section 132 and the transmission pipe 130 can be made.
The present embodiment can connect the testing pipe segment 132 into the conveying pipe 130 by providing the first connecting portion 160 and the second connecting portion 170, which are mutually matched, and make the testing pipe segment 132 easy to repair and replace.
Example 10:
as shown in fig. 9, the present embodiment provides a concrete pumping device 300 including: a chassis 310; as in the concrete pumping system 100 of any of the embodiments, the concrete pumping system 100 is disposed on the chassis 310.
Example 11:
as shown in fig. 6, the present embodiment provides a control method of a concrete pumping system, which is suitable for controlling the concrete pumping system 100 according to any embodiment, and the control method of the concrete pumping system includes the following steps:
step S102, obtaining output parameters of concrete materials in a pumping mechanism;
and step S104, controlling the pumping frequency of the pumping mechanism according to the output parameters.
Wherein, the output parameter comprises at least one of the following or the combination thereof: flow, flow rate, volume, pumping efficiency of concrete output.
Example 12:
as shown in fig. 7, the present embodiment provides a control method for a concrete pumping system, where the output parameter includes pumping efficiency, and the step of controlling the pumping frequency of the pumping mechanism according to the output parameter includes:
step S202, determining a target pumping frequency interval according to the relation between the pumping efficiency and the pumping frequency;
and step S204, controlling the pumping mechanism to adjust the pumping frequency of the pumping mechanism to a target pumping frequency interval.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The present embodiment provides a concrete pumping system 100 that employs an electromagnetic flow sensor as a detection device 140 to measure the flow rate of concrete. The electromagnetic flow sensor can be installed at any position of the uphill conveying pipe. The electromagnetic flow sensor is also fitted with a ceramic liner as a protective liner layer 134. The protective lining layer 134 can greatly improve the wear resistance of the product so as to resist the erosion of concrete to the pipe wall and prolong the service life of the product.
The embodiment also provides a control method of the concrete pumping system, which aims to help an operator to find the optimal pumping frequency and provide a basis for optimizing the control of the pumping process.
The electromagnetic flow sensor of the present embodiment is provided with a magnetic field applying unit 142, a collecting unit 144, and a processing unit 146. The magnetic field applying unit 142 applies a magnetic field to the concrete material so that the concrete material generates an induced voltage. The collecting unit 144 collects the induced voltage and outputs a collecting signal according to the induced voltage. The processing unit 146 receives the collected signals and obtains output parameters according to the collected signals.
The electromagnetic flow sensor of the embodiment can measure the flow velocity of the pumped concrete, calculate the total volume of the pumped concrete and draw a relation graph of the pumping efficiency and the pumping frequency. The pumping efficiency refers to the pumping volume per unit time.
By using the relationship between the pumping efficiency and the pumping frequency, the present embodiment can control the pumping frequency to the optimal pumping frequency f shown in FIG. 50To achieve an efficiency optimized pumping. The present embodiment can also control the pumping efficiency at any target value to realize the control of the pumping process.
The electromagnetic flow sensor of this embodiment measures the square volume of can going out the pump sending of reality, and it does not receive the influence of inhaling material efficiency, measures accurate degree height. In addition, the embodiment can depict a relation graph of the pumping efficiency and the pumping frequency, and the relation graph of the pumping efficiency and the pumping frequency is utilized to realize accurate control of the pumping process.
In summary, the embodiment of the invention has the following beneficial effects:
1. according to the embodiment of the invention, a more accurate detection result can be obtained, so that the aim of helping an operator accurately control and adjust the feeding mode of the concrete material is fulfilled.
2. The embodiment of the invention can acquire the acquisition signal corresponding to the flow velocity of the concrete material. The device has the advantages of high precision, sensitive reaction, simple structure, low cost and convenient installation.
3. Embodiments of the present invention enable the test line segment 132 to resist erosion or impact of materials such as cement, mortar, concrete, etc. against its wall, and thereby extend the useful life of the test line segment 132.
4. Embodiments of the present invention can adjust the real-time pumping frequency according to the real-time pumping efficiency to make the pumping frequency of the pumping mechanism 120 more reasonable or to make the actual pumping conditions approach or reach the operator's ideal pumping conditions.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A concrete pumping system, comprising:
the hopper is internally provided with a switching pipe;
the pumping mechanism comprises two conveying cylinders and is suitable for pumping concrete materials;
the conveying pipe is selectively communicated with the two conveying cylinders through the switching pipe and is suitable for conveying the concrete materials;
the detection device is arranged on the conveying pipe and is suitable for acquiring the output parameters of the concrete material flowing through the conveying pipe;
the control device is in communication connection with the detection device;
the control device is used for acquiring the output parameter of the detection device and controlling the pumping frequency of the pumping mechanism according to the output parameter.
2. The concrete pumping system of claim 1, wherein the output parameters include at least one or a combination of:
flow, flow rate, volume, pumping efficiency of concrete output.
3. The concrete pumping system of claim 2, wherein the pumping mechanism further comprises:
the two main oil cylinders are respectively in driving connection with the two conveying cylinders;
the control valves are arranged on the driving oil paths of the two main oil cylinders;
the control device is also connected with the control valve and is used for controlling the actions of the two master cylinders through the control valve so as to control the pumping frequency of the pumping mechanism.
4. Concrete pumping system according to claim 3,
the control device is used for determining a target pumping frequency interval according to the relation between the pumping efficiency and the pumping frequency and controlling the reversing of the two main oil cylinders through the control valve so as to enable the pumping mechanism to operate in the target pumping frequency interval.
5. Concrete pumping system according to any one of claims 1 to 4,
the detection device is an electromagnetic flow sensor, and the electromagnetic flow sensor is installed on the upward inclined output section of the conveying pipe.
6. Concrete pumping system according to any one of claims 1 to 4, characterized in that the detection means comprise electromagnetic induction detection means comprising:
a magnetic field applying unit adapted to apply a magnetic field to the concrete material so that the concrete material generates an induced voltage;
the acquisition unit is suitable for acquiring the induction voltage and outputting an acquisition signal according to the induction voltage;
and the processing unit is suitable for receiving the acquisition signals and acquiring the output parameters according to the acquisition signals.
7. Concrete pumping system according to any one of claims 1 to 4, characterized in that the delivery pipe comprises:
detecting a pipeline section;
the protective lining layer is arranged on the periphery of the inner wall of the detection pipeline section;
the detection device is arranged on the detection pipeline section and is suitable for detecting the concrete material flowing through the detection pipeline section.
8. The concrete pumping system of claim 7, wherein the protective liner layer comprises at least one of:
the ceramic material protects the inner liner, the metal material protects the inner liner, and the wear-resistant composite material protects the inner liner.
9. The concrete pumping system of claim 7, further comprising:
a first connection portion;
the second connecting part is arranged on the detection pipeline section;
a fastener;
the first connecting portion and the second connecting portion are matched with each other, and the fastening piece penetrates through the first connecting portion and the second connecting portion respectively to fix the detection pipeline section.
10. Concrete pumping equipment, characterized in that it comprises:
a chassis;
concrete pumping system according to any one of claims 1 to 9, arranged on the chassis.
11. A control method of a concrete pumping system, adapted to control a concrete pumping system according to any one of claims 1 to 9, characterized in that it comprises the steps of:
acquiring output parameters of concrete materials in a pumping mechanism;
controlling the pumping frequency of the pumping mechanism according to the output parameter;
wherein the output parameters include at least one or a combination of: flow, flow rate, volume, pumping efficiency of concrete output.
12. The method of claim 11, wherein the output parameter includes pumping efficiency, and the step of controlling the pumping frequency of the pumping mechanism according to the output parameter includes:
determining a target pumping frequency interval according to the relation between the pumping efficiency and the pumping frequency;
controlling the pumping mechanism to adjust a pumping frequency of the pumping mechanism to the target pumping frequency interval.
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