A multi-stage supercharging device for a shaftless pump for pumping concrete

Abstract

The application discloses a kind of super high layer pumping concrete shaftless pump push multistage pressurizing device, the shaftless pump push multistage pressurizing device is installed on conveying pipe, the shaftless pump push multistage pressurizing device includes at least two pressurizing components, two buffer components and two connecting pipes, the pressurizing component, the buffer component and the connecting pipe are coaxially arranged, the pressurizing component is sequentially connected between, the first pressurizing component and the last pressurizing component are respectively connected with two buffer components, two buffer components are respectively connected with two connecting pipes;The pressurizing component includes rotor assembly and power component for driving the rotation of rotor assembly, the inner wall of rotor assembly is provided with blade.The application has the advantages that: reduce the initial pumping pressure of high-rise building, ensure construction safety, reduce the pressure requirement of pumping equipment and conveying pipeline strength, reduce equipment cost investment;Pumping height of pumping concrete can be increased.

Description

Technical Field

[0001] This invention relates to the technical field of concrete pipeline transportation in deep mines, and in particular to a shaftless multi-stage booster device for ultra-high-rise concrete pumping. Background Technology

[0002] With the development of urban construction, the number of super high-rise buildings is increasing, and the challenges of vertical transportation of building materials in super high-rise construction are becoming increasingly severe. Besides the concrete mix design, the main technical difficulties in pumping concrete in super high-rise buildings stem from the conveying capacity of the concrete pumping equipment and pipelines. When the building height reaches 300 m or even 500 m or more, concrete pumping becomes increasingly difficult. Furthermore, the construction of super high-rise buildings typically uses high-strength, high-performance concrete, and the increased strength of the concrete material further intensifies the challenges to the pumping system. If the pumping system is not properly configured during construction, pipe blockages are highly likely; or if the pumping pressure does not meet the height requirements, it will cause project shutdowns and incur high costs. Therefore, the performance of the selected pumping equipment, the layout of the pumping system, and related operating procedures are crucial for achieving ultra-high pressure pumping.

[0003] Currently, there are few domestic methods for ultra-high pressure pumping, a lack of pumping systems, and imperfect conventional pumping processes. Concrete pumping is uncontrollable, and incidents such as insufficient pumping pressure and pipe blockage are prone to occur during high-rise pumping. In conventional ultra-high-rise construction projects, ultra-high pressure pumps and relay pumping methods are typically used. For example, patent number CN 115680285 A, "An Ultra-High-Rise Concrete Pumping System and Construction Method," uses an ultra-high pressure pump set to provide enormous pressure for pumping concrete. Regarding relay pumping methods and devices, patent number CN 111622779 A, ​​"A Pulse-type Pressure Compensation Long-Distance Concrete Conveying Device and Its Usage Method," arranges several pneumatic booster pumps at intervals on the conveying pipeline. The air outlet of the pneumatic booster pump is connected to the conveying pipeline to compensate for the pushing pressure lost by the concrete during conveying, so as to keep the concrete pressure in the entire conveying pipeline stable and realize long-distance concrete conveying. Patent number CN 103541550 A, "A Construction Pumping System for Steel Pipe Concrete in Super High-Rise Buildings," connects a high-pressure pump to the discharge port and a low-pressure pump to the pouring hose. The two concrete pumps relay each other to achieve the purpose of pumping in super high-rise buildings. Although existing technologies have solved some problems of insufficient pumping pressure and relay pumping of concrete in high-rise buildings, the following problems still exist: (1) For long-distance and ultra-high-rise pumping, the pressure of high-pressure pumps is high, the performance and cost of high-pressure pumps are high, the performance requirements of adjacent pressure pump pipelines are high, the equipment cost is increased, and the construction safety is low; (2) Traditional pressure pumps provide intermittent pumping pressure, which can easily cause blockage of the delivery pipeline; (3) Traditional pressure pumps have greater vibration and noise, which is not conducive to environmental protection; (4) Traditional pressure pumps cannot achieve multi-stage pressurization. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by providing a shaftless multi-stage pressurization device for ultra-high-rise concrete pumping. This device includes a multi-stage pressurization assembly, a buffer assembly, and a connecting pipe, which is connected to a delivery pipe. The pressurization assembly has blades on its inner wall. A motor drives the bladed steel cylinder to rotate, and the high-speed rotating blades provide pressure to the concrete, achieving the pressurization purpose. Multiple pressurization stages allow for continuous pressurization, ensuring the concrete pumping pressure meets requirements and guaranteeing the quality of the pouring. Simultaneously, the multi-stage pressurization assembly, connected to the delivery pipe via the buffer assembly, buffers the concrete pressure and pressurization impact load, ensuring the safety and stability of the delivery pipeline.

[0005] The objective of this invention is achieved through the following technical solutions:

[0006] A shaftless multi-stage booster device for ultra-high-rise concrete pumping, characterized in that: the shaftless multi-stage booster device is installed on a delivery pipe, and includes at least two booster components, two buffer components, and two connecting pipes. The booster components, buffer components, and connecting pipes are coaxially arranged, and the booster components are connected sequentially. The first-stage booster component and the last-stage booster component are respectively connected to the two buffer components, and the two buffer components are respectively connected to the two connecting pipes. The booster component includes a rotor assembly and a power component for driving the rotor assembly to rotate, and blades are provided on the inner wall of the rotor assembly.

[0007] The rotor assembly includes a steel cylinder, a rotating gear ring, and an annular slider. The rotating gear ring is located at both ends of the steel cylinder, the annular slider is located at both ends of the steel cylinder, and the blades are arranged circumferentially along the inner wall of the steel cylinder.

[0008] The booster assembly also includes a cylindrical protective cover for mounting the power assembly and support end caps at both ends of the rotor assembly and the power assembly. The support end caps have an annular groove that mates with the annular slider. The power assembly includes a plurality of motor groups arranged circumferentially along the cylindrical protective cover. Each motor group consists of two motors arranged opposite each other. The two motors are respectively mounted on both sides of the motor base. A power gear is connected to the motor shaft of the motor. The power gear extends outside the cylindrical protective cover and meshes with the rotating gear ring.

[0009] The buffer assembly includes an annular buffer seat, an annular buffer cavity disposed within the annular buffer seat, a plurality of buffer springs disposed along the circumferential direction of the annular buffer cavity, and an annular steel support connected at one end to the support end cap. The other end of the annular steel support extends into the annular buffer cavity and is connected to an annular steel pad. The annular steel pad contacts or connects with the buffer springs corresponding to those in the annular buffer cavity. A rubber gasket is provided between the support end cap and the annular buffer seat, and the rubber gasket is fitted over the annular steel support.

[0010] The annular buffer seat is composed of an inner cylindrical buffer steel plate, an outer cylindrical buffer steel plate, an annular buffer base plate, and an annular steel clamping plate. The annular steel clamping plate has an annular groove that communicates with the annular buffer cavity. The annular groove has a smaller ring width than the annular buffer cavity, and the annular steel pad has a larger ring width than the annular groove.

[0011] The rotor assembly is equipped with a pressure sensor and a speed sensor, which are electrically connected to the processor.

[0012] The connecting pipe is a threaded connecting cylinder, which is connected to the conveying pipe through the thread.

[0013] The advantages of this invention are:

[0014] (1) Reduce the initial pumping pressure of high-rise buildings to ensure construction safety, while reducing the pressure requirements of pumping equipment and the strength requirements of conveying pipelines, thus reducing equipment cost investment.

[0015] (2) This shaftless pump pusher multi-stage booster device can increase the pumping height of the pumped concrete;

[0016] (3) The shaftless pump pusher has a large internal space, which is beneficial for pumping concrete.

[0017] (4) The series-connected multi-stage booster assembly can achieve multiple boosting. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the cross-sectional position of the present invention;

[0020] Figure 3 This is a circuit diagram of the control system of the present invention;

[0021] Figure 4 for Figure 2 Cross-sectional view of AA in the middle;

[0022] Figure 5 for Figure 2Cross-sectional view of BB in the middle;

[0023] Figure 6 for Figure 2 Cross-sectional view of CC in the middle;

[0024] Figure 7 for Figure 2 Cross-sectional view of DD in the middle;

[0025] Figure 8 for Figure 2 Cross-sectional view of the EE;

[0026] Figure 9 for Figure 2 Cross-sectional view of FF in the middle;

[0027] Figure 10 for Figure 2 Cross-sectional view of GG in China;

[0028] like Figures 1-10 As shown in the figure, the labels represent:

[0029] a. Shaftless pump-driven multi-stage booster device, a1. First-stage booster assembly, a2. Second-stage booster assembly, a3. Third-stage booster assembly;

[0030] 1. Pressurization component, 2. Buffer component, 3. Connecting pipe, 4. Conveying pipe, 5. Conveying direction of pumped concrete, 6. Rotation direction;

[0031] 11. Rotor assembly, 12. Power assembly, 13. Cylindrical protective cover, 14. Support end cover, 15. Control system, 111. Steel cylinder, 112. Rotating gear ring, 113. Annular slider, 114. Blade, 121. Motor, 122. Motor shaft, 123. Motor base, 124. Power gear, 131. Inner side plate of cylindrical protective cover, 132. Outer side plate of cylindrical protective cover, 133. Annular protective cover cover plate, 134. Rectangular hole, 141. Annular groove, 151. Pressure sensor one, 152. Pressure sensor two, 153. Pressure sensor three, 154. Pressure sensor four, 155. Speed ​​sensor one, 156. Speed ​​sensor two, 157. Speed ​​sensor three, 158. Speed ​​sensor four, 159. Processor;

[0032] 21. Annular buffer seat, 22. Annular steel support, 23. Annular steel pad, 24. Annular buffer cavity, 25. Buffer spring, 26. Rubber washer, 211. Inner steel plate of cylindrical buffer, 212. Outer steel plate of cylindrical buffer, 213. Annular buffer base plate, 214. Annular steel clamping plate;

[0033] 31. Connecting cylinder; 32. Thread. Detailed Implementation

[0034] The features and other related features of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate understanding by those skilled in the art:

[0035] Example: Figure 1-10 As shown, this embodiment relates to a shaftless pump-driven multi-stage pressurization device for ultra-high-rise concrete pumping. The shaftless pump-driven multi-stage pressurization device a is located on the conveying pipe 4. The shaftless pump-driven multi-stage pressurization device a mainly includes a three-stage pressurization component 1, two buffer components 2, and two connecting pipes 3. The pressurization component 1, buffer components 2, and connecting pipes 3 are coaxially arranged. The three-stage pressurization component 1 is a first-stage pressurization component a1, a second-stage pressurization component a2, and a third-stage pressurization component a3, which are connected sequentially. The first-stage pressurization component a1 and the third-stage pressurization component a3 are respectively connected to the two buffer components 2. The two buffer components 2 are respectively connected to the two connecting pipes 3. The connecting pipes 3 are threaded to the conveying pipe 4. Specifically, the connecting pipe 3 is a connecting cylinder 31 with threads 32. One end of the connecting cylinder 31 is fixedly connected to the buffer component 2, and the other end is connected to the conveying pipe 4 through the threads 32 on it.

[0036] like Figure 1-7 As shown, the booster assembly 1 includes a rotor assembly 11, a power assembly 12, a cylindrical protective cover 13, a support end cover 14, and a control system 15. The power assembly 12 is installed inside the cylindrical protective cover 13. The support end cover 14 is located at both ends of the rotor assembly 11 and the power assembly 12. Specifically, the upper support end cover 14 of the first-stage booster assembly a1 is connected to the lower support end cover 14 of the second-stage booster assembly a2. The upper support end cover 14 of the second-stage booster assembly a2 is connected to the lower support end cover 14 of the third-stage booster assembly a3. The power assembly 12 is located outside the rotor assembly 11 and can drive the rotor assembly 11 to rotate. The rotor assembly 11 includes a steel cylinder 111, a rotating gear ring 112, an annular slider 113, and blades 114. The rotating gear ring 112 is located at both ends of the steel cylinder 111, and the annular slider 113 is also located at both ends of the steel cylinder 111. An annular groove 141 is provided on the support end cover 14. The annular groove 141 cooperates with the annular slider 113, and the annular slider 113 can rotate within the annular groove 141. The blades 114 are arranged circumferentially along the inner wall of the steel cylinder 111, and there is a set of them. The blades 114 are fan-shaped and inclined, and the blades 114 are located in the middle of the inner wall of the steel cylinder 111. The pumping concrete conveying direction 5 is from bottom to top. The blades 114 can withstand the impact of the pumped concrete and guide the pumped concrete.

[0037] The power assembly 12 includes several motor units located inside the cylindrical protective cover 13 and arranged circumferentially along the cylindrical protective cover 13. Each motor unit consists of two opposing motors 121, which are respectively mounted on both sides of the motor base 123. A drive gear 124 is connected to the motor shaft 122 of the motor 121. The drive gear 124 extends through a rectangular hole 134 on the cylindrical protective cover 13 to the outside of the cylindrical protective cover 13 and meshes with a rotating gear ring 112. The motor 121 drives the drive gear 124 on the motor shaft 122 to rotate, which in turn drives the rotating gear ring 112 to rotate, causing the annular slider 113 to rotate within the annular groove 141, thereby causing the blades 114 on the steel cylinder 111 to rotate (see section 6 for the rotation direction of the shaftless pump pushing the multi-stage booster device). Figure 2 As shown, the high-speed rotating blades 114 provide pressure to the concrete, achieving the purpose of pressurization and ensuring that the concrete pumping pressure meets the requirements, thus guaranteeing the construction quality of the pouring. In addition, the cylindrical protective cover 13 includes an inner cylindrical protective cover plate 131, an outer cylindrical protective cover plate 132, and an annular protective cover cover plate 133, which is connected to the support end cover 14.

[0038] like Figure 1 , 3 As shown in Figure 6, the control system 15 includes a pressure sensor, a speed sensor, and a processor 155. The pressure sensor and speed sensor are electrically connected to the processor 155. The pressure sensor and speed sensor measure the pressure and speed of the concrete, respectively, and transmit the data to the processor 155 for analysis and processing. The pressure sensor and speed sensor are both arranged circumferentially along the steel cylinder 111, and they are staggered, that is, each speed sensor is located between two adjacent pressure sensors, and each pressure sensor is located between two adjacent speed sensors. In this embodiment, the pressure sensors include pressure sensor 151, pressure sensor 152, pressure sensor 153, and pressure sensor 154, and the speed sensors include speed sensor 155, speed sensor 156, speed sensor 157, and speed sensor 158. Pressure sensor 151 and speed sensor 155 are both located on the side of the lower rotating gear ring 112 of the first-stage pressurization assembly a1, pressure sensor 152 and speed sensor 156 are both located on the side of the lower rotating gear ring 112 of the second-stage pressurization assembly a2, pressure sensor 153 and speed sensor 157 are both located on the side of the lower rotating gear ring 112 of the third-stage pressurization assembly a3, and pressure sensor 154 and speed sensor 158 are both located on the side of the upper rotating gear ring 112 of the third-stage pressurization assembly a3, which can improve the accuracy of the measurement results.

[0039] like Figure 1-2As shown in Figures 8-10, the buffer assembly 2 includes an annular buffer seat 21, an annular steel support 22, an annular steel pad 23, an annular buffer cavity 24, buffer springs 25, and rubber washers 26. The annular buffer cavity 24 is located inside the annular buffer seat 21. Multiple buffer springs 25 are arranged along the circumferential direction of the annular buffer cavity 24 to provide buffering. In this embodiment, the annular buffer seat 21 is composed of a cylindrical inner buffer steel plate 211, a cylindrical outer buffer steel plate 212, an annular buffer base plate 213, and an annular steel clamping plate 214. The annular steel clamping plate 214 has an annular groove that communicates with the annular buffer cavity 24. The size of the annular groove is similar to the size of the annular steel support 22. The annular groove guides the annular steel support 22. One end of the annular steel support 22 is connected to the support end cap 14 (of the first-stage pressurization component a1 and the third-stage pressurization component a3), and the other end extends through the annular groove into the annular buffer cavity 24 and is connected to an annular steel pad 23. The annular steel pad 23 contacts or connects to the buffer spring 25 in the corresponding annular buffer cavity 24. The size of the annular buffer cavity 24 is adapted to the size of the annular steel pad 23, and the annular buffer cavity 24 guides the annular steel pad 23. The annular steel pad 23 has a ring width greater than the annular groove ring width, which can prevent the annular steel support 22 from moving outside the annular buffer cavity 22 of the buffer component 2. A rubber gasket 26 is provided between the support end cap 14 and the annular buffer seat 21, and the rubber gasket 26 is sleeved on the outside of the annular steel support 22. This not only prevents the support end cap 14 from colliding with the annular buffer seat 21, but also guides the annular steel support 22.

[0040] The beneficial technical effects of this embodiment are as follows:

[0041] (1) Reduce the initial pumping pressure of high-rise buildings to ensure construction safety, while reducing the pressure requirements of pumping equipment and the strength requirements of conveying pipelines, thus reducing equipment cost investment.

[0042] (2) This shaftless pump pusher multi-stage booster device can increase the pumping height of the pumped concrete;

[0043] (3) The shaftless pump pusher has a large internal space, which is beneficial for pumping concrete.

[0044] (4) The series-connected multi-stage booster assembly can achieve multiple boosting.

[0045] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A shaftless, multi-stage booster device for pumping concrete in ultra-high-rise buildings, characterized in that: The shaftless pump-driven multi-stage booster device is installed on the delivery pipe. The device includes at least two booster assemblies, two buffer assemblies, and two connecting pipes. The booster assemblies, buffer assemblies, and connecting pipes are coaxially arranged. The booster assemblies are connected sequentially. The first-stage booster assembly and the last-stage booster assembly are respectively connected to two buffer assemblies, and the two buffer assemblies are respectively connected to two connecting pipes. Each booster assembly includes a rotor assembly and a power assembly for driving the rotor assembly to rotate. Blades are provided on the inner wall of the rotor assembly. The rotor assembly includes a steel cylinder, a rotating gear ring, and an annular slider. The rotating gear ring is located at both ends of the steel cylinder, the annular slider is located at both ends of the steel cylinder, and the blades are arranged circumferentially along the inner wall of the steel cylinder. The booster assembly also includes a cylindrical protective cover for mounting the power assembly and support end caps located at both ends of the rotor assembly and the power assembly. The support end caps have an annular groove that mates with the annular slider. The power assembly includes a plurality of motor groups arranged circumferentially along the cylindrical protective cover, and each motor group consists of two motors arranged opposite to each other. The buffer assembly includes an annular buffer seat, an annular buffer cavity disposed within the annular buffer seat, a plurality of buffer springs arranged along the circumferential direction of the annular buffer cavity, and an annular steel support connected at one end to the support end cap. The other end of the annular steel support extends into the annular buffer cavity and is connected to an annular steel pad. The annular steel pad contacts or connects with the buffer springs corresponding to those in the annular buffer cavity. A rubber gasket is provided between the support end cap and the annular buffer seat, and the rubber gasket is fitted over the annular steel support. The annular buffer seat is composed of a cylindrical inner buffer steel plate, a cylindrical outer buffer steel plate, an annular buffer base plate, and an annular steel clamping plate. The annular steel clamping plate has an annular groove that communicates with the annular buffer cavity. The annular groove has a smaller ring width than the annular buffer cavity, and the annular steel pad has a larger ring width than the annular groove. The rotor assembly is equipped with a pressure sensor and a speed sensor, which are electrically connected to the processor respectively. The blades are fan-shaped and inclined, and are located in the middle of the inner wall of the steel cylinder. The pumping direction of the concrete is from bottom to top. The blades bear the impact of the pumped concrete and guide the flow of the pumped concrete.

2. The shaftless pumping multi-stage booster device for ultra-high-rise concrete pumping as described in claim 1, characterized in that: The two motors are respectively mounted on both sides of the motor base. The motor shaft of each motor is connected to a drive gear, which extends outside the cylindrical protective cover and meshes with the rotating gear ring.

3. The shaftless pumping multi-stage booster device for ultra-high-rise concrete pumping as described in claim 1, characterized in that: The connecting pipe is a threaded connecting cylinder, which is connected to the conveying pipe through the thread.

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