Centrifugal Separator Negative Pressure Gas Extraction
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Solution Overview
Problem
Centrifugal separators experience high energy consumption and thermal warming due to aerodynamic losses, which can damage sensitive fluids and require cooling systems, while also generating noise and creating an unsanitary environment.
Innovation Solution
A centrifugal separator with a second outlet for discharging higher density components to the outer periphery of the rotor, maintaining negative pressure in the separation space to reduce friction and heat transfer, using a medium to regulate rotor temperature, and employing a pump device to remove gas and vaporization heat, thereby reducing energy consumption and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a conventional centrifugal separator operates with rotating parts in contact with surrounding gas, then separation function is achieved, but aerodynamic losses cause high energy consumption and thermal warming
Solution Approach 1:
The patent extracts the gas from the separation space by maintaining negative pressure, removing the source of aerodynamic losses. This eliminates the harmful interaction between rotating parts and surrounding gas, directly reducing energy consumption and aerodynamic losses.
Solution Approach 2:
The patent creates an inert environment by maintaining negative pressure in the separation space, effectively removing the gas medium that causes aerodynamic friction. This inert environment (vacuum-like condition) eliminates the harmful aerodynamic interactions while preserving the centrifugal separation function.
2Temperature
If a conventional centrifugal separator operates with rotating parts in contact with surrounding gas, then separation function is achieved, but thermal warming occurs causing damage to sensitive fluids
Solution Approach 1:
The patent extracts the gas from the separation space, removing the medium through which heat is transferred to the fluid. By maintaining negative pressure, thermal warming is prevented, protecting sensitive fluids from thermal damage while maintaining separation functionality.
3Temperature
If a centrifugal separator is provided with a water-cooled casing to dispose of heat, then thermal management is achieved, but device complexity increases
Solution Approach 1:
The patent extracts the gas from the separation space, eliminating the source of heat generation. This removes the need for complex cooling systems like water-cooled casings, as there is no more aerodynamic friction to generate heat, thereby reducing device complexity.
4Object-generated harmful factors
If a centrifugal separator operates at atmospheric pressure, then discharge of separated components is achieved, but noise generation and noise propagation increase
Solution Approach 1:
The patent maintains negative pressure in the separation space, creating an inert environment that suppresses noise generation and propagation. The absence of gas reduces aerodynamic noise from rotating parts and simplifies sludge outlet configuration, eliminating a major noise source.
5Object-generated harmful factors
If a centrifugal separator operates at atmospheric pressure, then discharge of separated components is achieved, but deposits and scaling form creating unsanitary environment
Solution Approach 1:
The patent maintains negative pressure in the separation space, creating conditions that prevent discharged sludge phase from adhering to surfaces. The negative pressure environment reduces deposit formation and scaling, maintaining a cleaner, more hygienic environment around the rotor.
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 decreases energy consumption, minimizes thermal warming, reduces noise, and maintains a cleaner environment by reducing deposits and scaling, allowing for easier maintenance and handling of the sludge phase with less volume and improved hygiene.
Implementation Method 1
a pump device for removal of gas from said space, thereby maintaining negative pressure in said space
Implementation Method 2
supplying a medium to said space, which medium is brought into heat-transferring contact with the rotor in order to regulate the temperature of the rotor
Data Source
Figure 1
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Figure 4
AI summary
The invention relates to a centrifugal separator comprising a casing which delimits and seals off a space in which a rotor is arranged. The rotor forms a separation space which is sealed or isolated from the space, and in which separation space centrifugal separation of a higher density and a lower density component from a fluid takes place. An inlet extends into the rotor for introducing fluid to the separation space, and a first outlet extends from the rotor for discharge of a component separated from the fluid. The space is connected to a pump device which is arranged to remove gas, thereby maintaining negative pressure in said space. The rotor comprises at least one second outlet extending from the separation space to the space for discharge of at least one higher density component separated from the fluid. The invention also relates to a method in such a centrifugal separator.