Thick Matter Pump Pressure Limiting With Joint Adjustment
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Solution Overview
Problem
Existing thick matter pumps lack a simple and secure method to adjust the target pressure of the pressure regulation means and the maximum hydraulic fluid pressure, leading to potential pipe bursts due to uncontrolled delivery pressure, especially in construction applications where conveying lines are vertically extended and subject to blockages.
Innovation Solution
A thick matter pump with an adjustable pressure regulation means and a pressure limiting valve system, where a joint adjusting element synchronizes the target pressure of the pressure regulation means and the maximum hydraulic fluid pressure, ensuring the maximum pressure always exceeds the target by a specified differential, preventing pipe bursts and allowing for easy adaptation to site-specific conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pre-set pressure regulation means is factory-fixed, then the pressure limiting function is provided, but the adaptability to different construction site conditions is poor and adjustment is difficult
Solution Approach 1:
The pressure regulation means is designed with adjustable components that allow the target pressure to be dynamically changed according to different construction site requirements. The pressure limiting valve includes an adjustable spring preload mechanism that enables operators to set different maximum pressure limits based on the specific application, transforming a static system into a dynamic one that can adapt to varying conditions.
2Adaptability or versatility
If the target pressure of pressure regulation means and maximum hydraulic fluid pressure are adjusted independently, then flexibility is achieved, but adjustment errors occur and reliability decreases
Solution Approach 1:
The adjustment mechanisms for the target pressure of the pressure regulation means and the maximum hydraulic fluid pressure of the pressure limiting valve are mechanically coupled through a common adjustment element. This coupling ensures that both pressure parameters are adjusted simultaneously and proportionally, eliminating independent adjustment errors while maintaining the flexibility to adapt to different site conditions. The merged adjustment mechanism guarantees a consistent pressure relationship between the two components.
3Adaptability or versatility
If only pressure regulation means is changed, then target pressure is adjustable, but error compensation is delayed and operational reliability is reduced
Solution Approach 1:
The system incorporates a feedback mechanism where the pressure limiting valve continuously monitors the hydraulic fluid pressure and compares it against the adjusted maximum pressure limit. When the pressure approaches or exceeds the set limit, the valve automatically activates to relieve excess pressure, providing real-time error compensation. This feedback loop ensures that any deviations from the desired pressure parameters are immediately corrected, maintaining operational reliability while allowing flexible target pressure adjustment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for secure and error-free adjustment of the thick matter delivery pressure, preventing pipe bursts and ensuring operational reliability by automatically limiting hydraulic fluid pressure to a safe maximum, thus safeguarding equipment and maintaining efficiency.
Implementation Method 1
the pressure of the hydraulic fluid in the drive line is limited to an adjustable maximum pressure via an adjustable pressure limiting valve
Implementation Method 2
the target pressure of the pressure regulation means and the pressure of the hydraulic fluid are adjustable through a joint adjusting element
Data Source
AI summary
A thick matter pump includes a hydraulically-driven two-cylinder piston-pump configured to generate a thick matter delivery pressure. The thick matter pump also includes a hydraulic pump configured to apply hydraulic fluid to the two-cylinder piston-pump via a drive line. The hydraulic pump includes a pressure regulator that is adjustable to a target value of pressure of the hydraulic fluid for limiting the thick matter delivery pressure, and the thick matter delivery pressure is adjustably limited. The pressure of the hydraulic fluid is limited in the drive line, via an adjustable pressure-limiting valve, to an adjustable maximum pressure. The target pressure of the pressure regulator and the maximum pressure of the hydraulic fluid are adjustable through a joint adjusting element.