Sensor-Controlled Suction Power for Minimum Flow Velocity
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Solution Overview
Problem
Existing suction devices face challenges in efficiently adjusting suction power to maintain minimum flow velocities at consumer connections, leading to uneconomical operation and requiring manual intervention, especially in stationary systems with multiple consumer points.
Innovation Solution
The suction device employs sensory detection of flow velocity characteristics, using pressure and flow velocity sensors to optimize suction power adjustment, automatically increasing or decreasing power based on actual versus target values, and adapting to the number of connected consumers and suction line cross-sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If suction power is continuously increased to maintain minimum flow velocities at all consumer connections, then flow velocity requirement is met, but energy consumption increases
Solution Approach 1:
The suction device dynamically adjusts its suction power based on the actual number of connected consumers detected by the control device. Instead of maintaining constant high power to ensure minimum flow velocities at all possible connections, the system adapts power delivery to match actual demand, thereby reducing energy consumption while still meeting flow velocity requirements for active consumers.
Solution Approach 2:
The control device receives feedback about the number of connected consumers and uses this information to regulate suction power. This feedback mechanism allows the system to optimize energy consumption by adjusting power delivery according to actual usage conditions, ensuring minimum flow velocities are maintained only where needed.
2Loss of energy
If manual intervention is used to adjust suction hose cross section for power optimization, then energy economy improves, but operational complexity increases
Solution Approach 1:
The suction device performs self-adjustment of suction power through automatic detection of the number of connected consumers by the control device. The system eliminates the need for manual intervention to optimize power delivery, as the control device autonomously regulates suction power based on detected usage conditions, thereby improving ease of operation while maintaining energy economy.
3Use of energy by moving object
If suction power is reduced for economical operation, then energy consumption decreases, but flow velocity at consumer connections may fall below minimum requirements
Solution Approach 1:
The system dynamically regulates suction power based on the detected number of connected consumers. When fewer consumers are connected, the control device reduces suction power to save energy. When more consumers are connected, the control device increases power to maintain minimum flow velocities at all active connections. This dynamic adaptation resolves the contradiction by ensuring flow velocity requirements are met only when and where necessary.
Solution Approach 2:
The control device uses feedback from consumer connection detection to regulate suction power appropriately. This feedback loop ensures that power reduction for energy economy does not compromise flow velocity requirements at active consumer connections, as the system automatically adjusts power levels based on actual usage patterns.
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
This solution ensures optimal and economical suction power delivery, maintaining minimum flow velocities at all consumer connections without excessive power consumption, reducing the need for manual adjustments and ensuring operational safety.
Implementation Method 1
one or more pressure values, which represent an indicator of the flow speed of the suction stream, are recorded
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a suction device (20), in particular a stationary suction device (20), the suction device (20) having a suction unit (21) comprising a drive motor (26) for generating a suction flow (S) and a suction inlet (38) for connecting a suction line (70), with a filter arrangement (22) having at least one filter element (37) and a dirt collection chamber (24) being upstream of the suction unit (21), with the suction device (20) having a sensor arrangement (50) for detecting at least one flow speed (g) the sensor value representing the suction flow (S), in particular a pressure value (P1, P2) and/or a flow value, the suction device (20) having a control device (40) with control means (41) for controlling the flow speed (g) of the suction flow (S) in the area of the suction device (20) based on a setpoint control value (P1soll) and an actual control value (Plist) formed on the basis of the at least one sensor value, wherein the Control means (41) control the suction unit (21) to adjust its suction power using a suction power default value (SV), and the control device (40) to increase or decrease the control setpoint (P1soll) depending on an increase or decrease in the suction power default value (SV ), which is specified for the suction unit (21) in order to achieve the control setpoint (P1soll).