Liquid accumulator and refrigerating system having same
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Solution Overview
Problem
Refrigerant backflow into the inlet pipe of conventional liquid accumulators leads to insufficient refrigerant supply in the compressor, prolonging startup time and affecting the efficiency of refrigerating systems.
Innovation Solution
A liquid accumulator design featuring a tank body, valve seat, baffle, and one-way valve with a blocking portion that strengthens the connection between the valve core and valve plate, enhancing coaxiality and stability to prevent refrigerant backflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional liquid accumulator is used, then the structure is simple, but refrigerant backflow occurs causing insufficient refrigerant supply to the compressor
Solution Approach 1:
The liquid accumulator is divided into multiple functional components: tank body, valve seat assembly, baffle assembly, and one-way valve assembly. Each component performs a specific function (storage, flow control, separation, backflow prevention), allowing the system to prevent refrigerant backflow while maintaining reasonable structural complexity through modular design
Solution Approach 2:
A one-way valve is introduced as an intermediary component to control refrigerant flow direction. The valve includes a valve core with blocking portion that selectively allows refrigerant to flow from the inlet to the outlet while preventing backflow, thus solving the backflow problem without requiring complex active control systems
2Reliability
If the one-way valve lacks proper connection structure, then the device is easier to manufacture, but the valve core tilts causing leakage
Solution Approach 1:
The blocking portion is integrated as an integral part of the valve core structure, merging the sealing function with the valve core itself. This integration ensures that when the valve core moves along the axial direction, the blocking portion maintains proper alignment with the valve port, preventing tilt and leakage without requiring separate alignment mechanisms
Solution Approach 2:
The valve core is designed to move along the axial direction of the liquid accumulator, maintaining a consistent orientation throughout its movement range. This axial movement path ensures that the blocking portion remains properly aligned with the valve port at all times, preventing tilt-induced leakage while simplifying the guidance mechanism
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 ensures stable operation by preventing refrigerant backflow, maintaining adequate refrigerant supply to the compressor, thereby improving the efficiency and startup performance of refrigerating systems.
Implementation Method 1
The one-way valve comprises a valve plate, a valve core, and a blocking portion connected to the valve core. The valve plate is arranged at an end of the one-way valve that is proximal to the valve port, the valve plate is capable of blocking the valve port
Implementation Method 2
A first end of the blocking portion abuts against a side surface of the valve plate that is away from the baffle and enables the valve core to connect to the valve plate
Data Source
AI summary
A liquid accumulator and a refrigerating system having same are provided. The liquid accumulator includes a tank body component, a valve seat, a baffle, and a one-way valve. The tank body component has a tank cavity, and the valve seat and the baffle are arranged in the tank cavity and abut against a side wall of the tank cavity, respectively. The valve seat is provided with a valve port, and the baffle is provided with a communicating port. The one-way valve includes a valve plate, a valve core, and a blocking portion connected to the valve core. The valve plate is arranged at an end of the one-way valve that is proximal to the valve port. The valve plate can block the valve port and abut against the valve core, and an end of the valve core away from the valve plate passes through the communicating port.