Horizontal Gas-Liquid Separator Layout for Compact Low-Noise Separation

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Solution Overview

Problem

Conventional gas-liquid separators are either too tall and difficult to mount, noisy, or too large in size, failing to meet the requirements for compactness and low noise in various applications.

Innovation Solution

A gas-liquid separator design featuring a housing with a separation cylinder assembly, including an outer and inner cylinder, a blocking member, and a liquid storage device, which employs centrifugal force and directional changes to enhance separation efficiency, reduce noise, and minimize size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a vertical gas-liquid separator is used, then separation is achieved through centrifugation, but the device becomes relatively high and difficult to mount

Engineering Contradiction:
Improveseparation efficiencyVSAvoidheight
Core Design Contradiction:
ProductivityVSLength of moving object

Solution Approach 1:

The patent transitions from a vertical configuration to a horizontal configuration, changing the primary dimension of separation from vertical height to horizontal length. This allows the separator to achieve centrifugal separation effectiveness while reducing mounting height requirements, making it suitable for installations with limited vertical space.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent employs an asymmetric structure with a conical bottom section and a cylindrical upper section, where the inlet is positioned at one end and outlets at the opposite end. This asymmetric arrangement optimizes flow patterns and separation efficiency while maintaining a compact horizontal footprint.

Inventive Principle:
Principle #4Asymmetry

2Productivity

If a vertical gas-liquid separator is used, then separation is achieved through centrifugation, but the device produces noise

Engineering Contradiction:
Improveseparation efficiencyVSAvoidnoise
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent introduces a liquid seal chamber as an intermediary element between the separation chamber and the discharge system. This liquid seal acts as a dampener that absorbs and reduces noise generated during the separation process, while also preventing gas escape and maintaining separation efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent converts the kinetic energy and turbulence that would normally generate noise into useful centrifugal separation force. By designing the inlet to create controlled turbulence that drives liquid along the wall, the system transforms what would be harmful noise into beneficial separation action.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Productivity

If a horizontal gas-liquid separator is used, then separation is achieved through a large space, but the device has a large size

Engineering Contradiction:
Improveseparation efficiencyVSAvoiddevice size
Core Design Contradiction:
ProductivityVSVolume of moving object

Solution Approach 1:

The patent employs a nested structure where the outlet pipe is positioned within the liquid seal chamber, and the conical section is integrated within the cylindrical chamber. This nesting arrangement maximizes the use of internal space, allowing the separator to achieve effective separation volume while minimizing the overall external dimensions of the device.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent optimizes geometric parameters such as the cone angle, chamber diameter ratios, and inlet velocity to achieve high separation efficiency in a compact volume. By carefully selecting these parameters, the device maintains effective separation performance while reducing the overall size compared to conventional horizontal separators.

Inventive Principle:
Principle #35Parameter changes

4Quantity of substance

If the liquid level is high in the housing accommodating cavity, then liquid storage capacity is increased, but agitation of the liquid by gas is enhanced

Engineering Contradiction:
Improveliquid storage capacityVSAvoidliquid agitation
Core Design Contradiction:
Quantity of substanceVSObject-generated harmful factors

Solution Approach 1:

The patent extracts the gas-liquid mixing zone from the main liquid storage area by positioning the separation chamber at one end with outlets at the opposite end. This separation of zones prevents gas from agitating the liquid in the storage area, while the liquid seal chamber provides sufficient storage capacity without direct gas contact.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The liquid seal acts as an intermediary barrier that prevents direct contact between gas and the liquid in the storage chamber. Gas passes through the liquid seal without agitating the main liquid body, thus maintaining liquid level stability and preventing unwanted agitation while still providing adequate liquid storage capacity.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 design achieves high separation efficiency, low noise operation, and a compact size, suitable for diverse installation scenarios, including low buildings and integrated refrigerating units.

Implementation Method 1

separates the gas-liquid mixture through centrifugation

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

the liquid drain downwards into a liquid phase zone of the cylindrical body

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentEP4183466B1Gas-liquid separator
Publication Date: 2025.12.24 YORK (WUXI) AIR CONDITIONING & REFRIGERATION CO LTD
  • EP4183466B1 patent drawingFigure 1A
  • EP4183466B1 patent drawingFigure 1B
  • EP4183466B1 patent drawingFigure 1C

AI summary

Provided in the present application is a gas-liquid separator. The gas-liquid separator comprises a housing and a separation cylinder assembly. The housing comprises a cylindrical housing side wall, and a first end plate and a second end plate that are located at opposite ends of the housing side wall. The housing comprises a housing inlet and an upper housing outlet, the housing inlet being provided on the first end plate, and the upper housing outlet being provided on an upper part of the housing side wall. The separation cylinder assembly is arranged in a housing accommodating cavity, and the axis of the separation cylinder assembly is arranged transversely to the axis of the cylindrical housing side wall, and the separation cylinder assembly comprises an outer cylinder and an inner cylinder arranged in the outer cylinder, with the outer cylinder being supported at the bottom of the housing side wall; and the separation cylinder assembly further comprises a separation space defined between the outer cylinder and the inner cylinder and located at an upper part of the separation cylinder assembly, a lower space located at the lower part of the separation cylinder assembly and an upper outlet located at the upper part of the separation cylinder assembly, with the separation space being in communication with the housing inlet, and the upper outlet being in communication with the separation space and the housing accommodating cavity. The gas-liquid separator has advantages such as having a high separation efficiency, low noise and a small size.