Essential details
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Product Introduction
The non-metallic compensator (also known as non-metallic expansion joint) used in the molten salt pump system is a key component, mainly used to absorb the displacement and stress of the pipeline caused by thermal expansion and contraction, vibration or installation deviation, and at the same time withstand the erosion of high-temperature and corrosive molten salt media. The following is a detailed answer about non-metallic compensators for molten salt pumps:
1. Core functions
Compensation displacement: Absorb axial, lateral and angular displacements to alleviate thermal stress.
Vibration and noise reduction: Reduce the vibration and pipeline noise during the operation of the molten salt pump.
High-temperature and corrosion-resistant: Adaptable to high temperatures (typically 300 ° C to 600 ° C) of molten salts (such as nitrates, chlorides, etc.) and chemical corrosion.
Sealing performance: Prevent molten salt leakage and ensure system safety.
2. Key parameters for selection
Temperature range: Select the temperature resistance grade based on the type of molten salt (such as the commonly used binary salt in solar thermal power plants at 565℃).
Pressure rating: The design pressure must be higher than the working pressure of the system.
Medium characteristics: Consider the corrosiveness of the molten salt (such as the content of chloride ions) and the content of particulate matter (whether it contains solid particles).
Displacement: axial compression/tension, lateral offset, etc.
Connection method: Flange standard (ANSI/DIN/JIS), bolt material (rust-proof required).
4. Application scenarios
Solar thermal power generation: High-temperature pipeline compensation for molten salt thermal storage systems.
Chemical industry: High-temperature process pipelines such as molten salt electrolysis and molten salt reactors.
Nuclear energy field: Medium transportation system in molten salt reactors.
5. Advantages vs. Metal compensators
Characteristics: Non-metallic compensators, metallic compensators
It has excellent high-temperature corrosion resistance (special materials can be selected) and relies on alloys (such as Inconel, which is expensive).
High flexibility (capable of multi-directional displacement) limited (usually mainly axial)
The vibration damping effect is excellent but average
The cost is medium to low (especially suitable for large-diameter pipes) and high
The pressure-bearing capacity is medium to high (enhanced design is required)
1. Core functions
Compensation displacement: Absorb axial, lateral and angular displacements to alleviate thermal stress.
Vibration and noise reduction: Reduce the vibration and pipeline noise during the operation of the molten salt pump.
High-temperature and corrosion-resistant: Adaptable to high temperatures (typically 300 ° C to 600 ° C) of molten salts (such as nitrates, chlorides, etc.) and chemical corrosion.
Sealing performance: Prevent molten salt leakage and ensure system safety.
2. Key parameters for selection
Temperature range: Select the temperature resistance grade based on the type of molten salt (such as the commonly used binary salt in solar thermal power plants at 565℃).
Pressure rating: The design pressure must be higher than the working pressure of the system.
Medium characteristics: Consider the corrosiveness of the molten salt (such as the content of chloride ions) and the content of particulate matter (whether it contains solid particles).
Displacement: axial compression/tension, lateral offset, etc.
Connection method: Flange standard (ANSI/DIN/JIS), bolt material (rust-proof required).
4. Application scenarios
Solar thermal power generation: High-temperature pipeline compensation for molten salt thermal storage systems.
Chemical industry: High-temperature process pipelines such as molten salt electrolysis and molten salt reactors.
Nuclear energy field: Medium transportation system in molten salt reactors.
5. Advantages vs. Metal compensators
Characteristics: Non-metallic compensators, metallic compensators
It has excellent high-temperature corrosion resistance (special materials can be selected) and relies on alloys (such as Inconel, which is expensive).
High flexibility (capable of multi-directional displacement) limited (usually mainly axial)
The vibration damping effect is excellent but average
The cost is medium to low (especially suitable for large-diameter pipes) and high
The pressure-bearing capacity is medium to high (enhanced design is required)
Product details
