Screw Compressor Integrated Non-Return Valve and Suction Gas Filter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Small and medium-sized screw compressors face high flow losses and complexity due to non-return valves actuated by compression springs, which are costly and prone to gas leaks from external pipelines.
Innovation Solution
Integration of a non-return valve and suction gas filter within the compressor housing, supplied with pressurized gas through ducts, using a solenoid valve for control, and a coaxial design where the suction gas filter surrounds the non-return valve, reducing the need for external conduits and minimizing leak risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-return valves actuated by compression springs are used in small and medium-sized screw compressors, then the valve closure function is achieved, but flow losses increase and device complexity increases
Solution Approach 1:
The patent combines the non-return valve and suction gas filter into a single integrated component housed within the compressor housing. This merging eliminates the need for separate spring-actuated valves and external piping, thereby reducing flow losses while maintaining the valve closure function through a more streamlined design.
Solution Approach 2:
The invention extracts the non-return valve mechanism from external piping and relocates it inside the compressor housing. By taking out the valve from its traditional external position and integrating it with the filter housing, the design eliminates unnecessary flow paths and reduces flow losses while preserving the essential closure function.
2Reliability
If non-return valves actuated by compression springs are used, then the valve closure function is achieved, but device complexity and assembly costs increase
Solution Approach 1:
The patent merges the non-return valve, suction gas filter, and housing into a single integrated assembly. This combination reduces device complexity by eliminating multiple separate components and their associated mounting requirements, thereby simplifying assembly procedures and reducing assembly costs while maintaining reliable valve closure.
Solution Approach 2:
The integrated housing serves multiple functions: it contains the suction gas filter, houses the non-return valve mechanism, and provides structural support. This multi-functionality reduces device complexity by consolidating what would otherwise require separate components and assemblies.
3Ease of operation
If external pipelines are used to supply pressurized gas to non-return valves, then valve control is achieved, but gas leaks occur from threaded joints
Solution Approach 1:
The invention extracts the pressurized gas supply system from external pipelines and relocates it inside the compressor housing. By taking out the gas supply pathways from external connections and integrating them internally, the design eliminates threaded joints that are prone to gas leaks while maintaining effective valve control.
Solution Approach 2:
The patent combines the gas supply ducts with the internal housing structure, merging the fluid transport function into the existing housing. This integration eliminates external pipelines and threaded connections, thereby preventing gas leaks at joints while preserving the ability to control the non-return valve.
4Reliability
If separate components are used for non-return valves and suction gas filters, then component functionality is achieved, but manufacturing complexity and assembly costs increase
Solution Approach 1:
The patent merges the non-return valve and suction gas filter into a single integrated component manufactured as one unit. This combining reduces manufacturing complexity by eliminating the need to produce and assemble multiple separate parts, thereby lowering production costs while maintaining the essential functionality of both components.
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 reduces flow losses and assembly costs, eliminates gas leaks, and provides a more efficient and cost-effective solution compared to traditional spring-actuated valves, while maintaining effective pressure control and filter installation simplicity.
Implementation Method 1
Present in the duct system is a solenoid valve, which is likewise disposed on the compressor and which serves to switch the pressurized gas supply on and off
Implementation Method 2
the non-return valve which, together with the suction gas filter, is present in the compressor housing is supplied with pressurized gas for the controlling of said valve
Implementation Method 3
suction gas filters integrated in the compressor housing are likewise customary
Data Source
AI summary
A screw compressor, in particular for refrigeration systems, comprising a compressor housing (1) which at least partly encloses the compressor, an integrated suction gas filter (2) and a non-return valve (7) that is to be actuated by pressurized gas; the compressor housing (1) has grooves, in particular drilled or cast ducts (13, 16 22, 23, 24) to which pressurized gas can be fed in order to control the non-return valve (7).