Intermediate Reservoir Condensate Discharge for Stable Exhaust Measurement
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Solution Overview
Problem
Existing condensate removal systems for exhaust gas measuring devices require wear-prone pumps and can cause pressure surges during condensate discharge, leading to reduced separation efficiency and measurement inaccuracies.
Innovation Solution
A condensate removal system with an overpressure condensate separator and intermediate reservoir, utilizing a float valve for controlled condensate discharge, eliminating the need for additional wear-prone pumps and minimizing pressure fluctuations by maintaining constant pressure conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pump is used to discharge condensate from the condensate separator, then condensate removal is achieved, but pressure surges occur during discharge which affect the separator and measuring devices
Solution Approach 1:
The system is divided into two independent pressure zones: the condensate separator operates under overpressure while the condensate container operates at atmospheric pressure. The connecting line with float valve creates a pressure barrier that segments the system, allowing condensate discharge without transmitting pressure surges to the separator or measuring devices.
Solution Approach 2:
The connecting line acts as an intermediary element between the overpressure zone (condensate separator) and atmospheric pressure zone (condensate container). The float valve in the connecting line mediates the pressure difference, allowing condensate flow while blocking pressure surge transmission.
2Reliability
If a pump is used to prevent repercussions on the condensate separator, then separation efficiency is maintained, but wear and maintenance requirements increase
Solution Approach 1:
The float valve mechanism provides automatic, self-regulating condensate discharge without requiring external power or mechanical pumping. The system uses the pressure difference and buoyancy force to automatically open the valve when condensate accumulates, eliminating wear-prone pump components while maintaining separation efficiency.
3Device complexity
If the condensate tank is directly connected to the drain line, then condensate discharge is simple, but pressure fluctuations affect the separator and measuring devices
Solution Approach 1:
The direct connection is replaced by a segmented architecture with two distinct pressure zones separated by the float valve in the connecting line. This segmentation prevents pressure fluctuation transmission while maintaining relatively simple system structure.
4Quantity of substance
If the sample gas is cooled below the dew point, then water vapor condenses and can be separated, but condensation in measuring devices may occur
Solution Approach 1:
The system prepares for potential condensation issues by providing a dedicated condensate collection and discharge system before condensate can reach the measuring devices. The float valve ensures continuous condensate removal, cushioning against the harmful effects of condensation in the measurement chamber.
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 design ensures reliable condensate removal without affecting the separation efficiency or measurement accuracy, reducing maintenance needs and maintaining system performance by decoupling the condensate tank from the drain line, allowing for efficient and continuous operation.
Implementation Method 1
a float valve, via which condensate can be discharged into the drain line
Implementation Method 2
If the temperature of the fluid drops below the dew point, the water vapor condenses and the condensate is present in the liquid phase
Data Source
Figure 1
AI summary
Condensate discharging systems (16) for exhaust-gas measuring devices (20) with a condensate separator (18) and an outflow line (56), in which atmospheric pressure prevails, are known. In order to reliably avoid feedback effects on the system during the outflow of the condensate from the condensate container (58), it is proposed according to the invention that positive pressure prevails in the condensate separator (18), and an intermediate reservoir (40), in which positive pressure prevails, is arranged between the condensate separator (18) and the outflow line (56), which intermediate reservoir (40) is connected directly via a connecting line (38) to the condensate separator (18), and in which intermediate reservoir (40) a float valve (42) is arranged, via which condensate can be discharged into the outflow line (56).