Steam-Driven Pump System for Cavitation-Free Water Supply

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Solution Overview

Problem

Conventional pumps in steam generation apparatuses require multiple units and suffer from cavitation issues due to high temperatures, leading to inefficient water supply operations.

Innovation Solution

An energy-saving pump system that utilizes steam energy from a steam generator to supply water to a use location, incorporating a pump main body, steam transfer means, water supply means, and suction means to efficiently manage steam energy and water sourcing without additional energy input.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple high pressure pumps are mounted in steam generation apparatus, then water supply capacity is improved, but device complexity and energy consumption increase

Engineering Contradiction:
Improvewater supply capacityVSAvoidnumber of pumps
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces the conventional mechanical pump system with a steam-driven water supply system. Steam from the steam generator is directed to drive water supply, eliminating the need for separate mechanical pumps. This substitution of mechanical energy with thermal energy resolution the contradiction by reducing device complexity while maintaining water supply capacity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The steam generator serves multiple functions: it generates steam for industrial use and simultaneously drives the water supply system. By making the steam generator multi-functional, the patent eliminates the need for separate pumps, thereby reducing device complexity while maintaining adequate water supply capacity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Stress or pressure

If high pressure pumps are used in high temperature environments, then water supply pressure is improved, but cavitation occurs reducing reliability

Engineering Contradiction:
Improvewater supply pressureVSAvoidpump operation stability
Core Design Contradiction:
Stress or pressureVSReliability

Solution Approach 1:

The patent replaces mechanical pumps that suffer from cavitation in high temperature environments with a steam-driven system. The steam, being in gaseous phase, does not experience cavitation issues. The steam pressure directly drives water supply, achieving high water supply pressure without the reliability problems of mechanical pumps in high temperature conditions.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the working medium from liquid (in mechanical pumps) to gas (steam). This parameter change allows the system to operate in high temperature environments without cavitation, as steam naturally exists in gaseous phase and can drive water supply through pressure differential without the cavitation issues that plague liquid-based mechanical pumps.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If conventional pumps are used for water supply, then water can be supplied to use location, but additional energy input is required increasing energy consumption

Engineering Contradiction:
Improvewater supply functionVSAvoidenergy consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The steam generator serves itself by using its own steam output to drive the water supply system. Instead of requiring external energy input from separate pumps, the system uses its own operational byproduct (steam) to perform the water supply function, thereby eliminating additional energy consumption while maintaining water supply capability.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent merges the steam generation function and water supply function into a single integrated system. The steam that would otherwise be a separate output is combined with the water supply drive mechanism, allowing the system to achieve water supply without additional energy input by utilizing the steam's inherent energy.

Inventive Principle:
Principle #5Merging (Combining)

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 system enables efficient water supply to a use location using high-pressure steam energy, automatically sucking and supplying water from a random source with minimal energy input, addressing cavitation and efficiency issues in conventional pumps.

Implementation Method 1

a pump main body installed to receive steam from a steam generator

Methodology Applied
Scientific EffectSteam energy conversion: Phase Change

Implementation Method 2

by using steam energy of a high pressure generating in a steam generator

Methodology Applied
Scientific EffectPressure differential: Pressure Gradient

Implementation Method 3

a suction means that opens and closes a pipe between the pump main body and a water source, wherein after steam is received by opening and closing the steam transfer means, by opening the suction means, water of a water source may be sucked

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentUS11208993B2Energy-saving pump and control system for the pump
Publication Date: 2021.12.28 YIM JOO HYUK
  • US11208993B2 patent drawing
  • US11208993B2 patent drawing
  • US11208993B2 patent drawing

AI summary

An energy-saving pump, and control system for the pump comprises: a pump body arranged to receive steam from a steam generator; a steam transferor for opening/closing a pipeline between the pump body and the steam generator; and a suction valve for opening/closing a pipeline between the pump body and a water source, wherein the steam transferor is closed to receive steam and then the suction valve is opened to suction water from the water source.