Steam Heater Pulse-Flow Control for Stable Continuous Steam
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Solution Overview
Problem
Existing steam generation methods are slow, produce discontinuous steam, and lack precise quality control, particularly in terms of dryness and humidity, limiting the effectiveness of steam-based household products.
Innovation Solution
A steam generation control method that utilizes a pulsed water flow through a steam generation system, where a liquid pump and inlet valve alternately open and close to deliver water to a steam heater, ensuring each pulsed flow is partially evaporated, with temperature and pressure monitoring to maintain stable steam quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If steam generation amount is increased to meet peak power demand, then power supply reliability is improved, but fuel consumption increases and NOx emissions worsen
Solution Approach 1:
The invention dynamically adjusts the steam generation amount based on real-time power demand conditions. The control unit increases steam generation during peak demand periods to ensure power supply reliability, then reduces it during off-peak periods to decrease fuel consumption. This dynamic adjustment resolves the contradiction by making the system adaptive to varying operational conditions.
Solution Approach 2:
The invention changes the operational parameters of the steam generator by controlling the amount of steam generated at different times. By adjusting the steam generation parameter in response to power demand, the system can meet peak power requirements when necessary while reducing fuel consumption during periods of lower demand, thus resolving the contradiction between reliability and energy loss.
2Reliability
If steam generation amount is increased to meet peak power demand, then power supply reliability is improved, but NOx emissions increase
Solution Approach 1:
The system dynamically controls steam generation based on power demand conditions. During peak demand, steam generation is increased to maintain power supply reliability, but during off-peak periods, generation is reduced to minimize NOx emissions. This temporal dynamic control resolves the contradiction between reliability and harmful emissions.
Solution Approach 2:
The invention adjusts the steam generation parameter in response to varying power demand conditions. By changing this operational parameter, the system can ensure adequate power supply when needed while reducing NOx emissions during periods when full capacity is not required, thus resolving the contradiction between reliability and environmental impact.
3Productivity
If power generation capacity is increased to meet peak demand, then productivity is improved, but device complexity increases
Solution Approach 1:
Instead of maintaining a permanently oversized steam generator to meet peak demand, the invention uses dynamic control to adjust the existing system's output according to actual power demand conditions. This approach maintains high power generation capacity when needed while avoiding the complexity of permanently overbuilding the system, thus resolving the contradiction between productivity and device complexity.
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
Enables rapid, continuous, and controllable steam production with stable quality, addressing the inefficiencies and quality control issues of prior art methods.
Implementation Method 1
a steam generator configured to generate steam in response to a power demand condition
Implementation Method 2
A control unit of the combined heat and power system is configured to control an operational parameter of the steam generator based on a steam generation amount determined by the determining unit
Data Source
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AI summary
A steam generation method for a steam generation system including a liquid inlet (1), a steam outlet (2), and a liquid pump (3), an inlet valve (4), and a steam heater (5) connected between the liquid inlet (1) and the steam outlet (2). The inlet valve (4) is connected between the liquid inlet (1) and the steam heater (5). The control method includes: S1, controlling the liquid pump (3) to operate, driving liquid from the liquid inlet (1) through the inlet valve (4) to the steam heater (5) operating in a heating state; S2, during the operation of the liquid pump (3), controlling the inlet valve (4) to alternately open and close at a preset frequency, causing the liquid to intermittently pass through the inlet valve (4). The liquid, after passing through the inlet valve (4), is delivered in a pulsed flow to the steam heater (5), where each pulsed flow continuously moves and is at least partially evaporated to produce steam before discharging from the steam heater (5). This steam generation control method produces continuous, stable-quality steam.