FAQ

The evaporator works by heating the liquid and converting it into a vapor, allowing the substance to change from liquid phase to gas phase. It produces vapor by heating the liquid to evaporate internally.

In a single-effect evaporator system, liquid is evaporated once, whereas in a multiple-effect evaporator system, liquid is evaporated in multiple stages by utilizing the heat released during the evaporation process to heat the feed of the next effect. Multiple-effect evaporator systems have higher energy efficiency and lower energy consumption.

The heating chamber is used to provide heat for the evaporation of the liquid into vapor. The separator is used to separate the vapor from the liquid. The condenser is used to condense the vapor back into liquid, allowing for separation and recovery of the substance.

The filtration precision of the bag filter is typically expressed in mesh size (mesh/inch), with a common filtration precision of 100 mesh. This filtration precision is chosen to meet specific process requirements, effectively filter out target substances, and ensure product quality and safety.

The flow rate and head of the feed pump and circulation pump are determined based on the process requirements and system design. Specific requirements include flow rate range, head requirements, pump material, and corrosion resistance. Additionally, special environmental conditions and process requirements such as high temperature, high pressure, or corrosive media need to be considered.

The material selection in the preheater and concentrated liquid cooler is typically based on process requirements, medium properties, and operating conditions. Common material choices include stainless steel, nickel alloys, titanium alloys, etc., to ensure the equipment's excellent corrosion resistance and high-temperature performance during operation.

The functions of the evaporation control system mainly include controlling key parameters such as temperature, pressure, and flow rate in the evaporator to ensure stable operation of the evaporation process. The main control parameters include feed flow rate, steam flow rate, heating medium temperature, vacuum level, etc.

A pressure sensor is used to convert pressure signals into electrical signals for real-time monitoring and control of the system's pressure, while a pressure gauge is a mechanical instrument for directly reading pressure values. The appropriate pressure range should be based on the system's operating pressure, taking into account measurement accuracy and safety margins within the operating range.

Specific measures for corrosion protection include selecting corrosion-resistant materials, applying anti-corrosion coatings, using corrosion-resistant linings, implementing cathodic protection, etc. Additionally, regular inspections and maintenance should be conducted based on the corrosive properties of the medium and operating conditions to ensure the effectiveness of corrosion protection measures.

The requirements for equipment installation site and foundation conditions include flatness, stability, seismic resistance, and corrosion resistance. Choosing a concrete-coated epoxy anti-corrosion structure foundation provides a stable foundation support and corrosion resistance, meeting the requirements of equipment weight and operating environment.

Inspection is required for pressure vessels, pressure pipes, and safety valves to ensure their safety and compliance with regulatory requirements. The specific inspection procedure includes applying for inspection, preparing documentation, commissioning inspection, receiving inspection reports and certificates, etc. Inspection must comply with relevant standards and regulations and undergo acceptance and review by the relevant authorities.

The insulation design of the equipment needs to consider factors such as heat conduction, thermal radiation, and convective heat loss, and suitable insulation materials are used for thermal insulation. Common insulation materials include rock wool, glass wool, polyurethane foam, etc., and the specific selection should be based on process requirements and environmental conditions.

The vortex flowmeter is based on the principle of the Karman vortex effect, measuring the flow rate by detecting the relationship between vortex frequency and velocity. The electromagnetic flowmeter is based on Faraday's law of electromagnetic induction, measuring the flow rate by detecting the induced electromotive force generated by the motion of conductive fluid in a magnetic field. The vortex flowmeter offers high accuracy and reliability, suitable for measuring the flow of various liquids and gases. The electromagnetic flowmeter is suitable for measuring the flow of conductive liquids and has good stability and anti-interference capabilities.

Equipment and pipeline labeling is typically done through signage, labels, or engraving, including information such as equipment name, model, operating parameters, operating precautions, etc. The purpose of labeling is to facilitate identification, operation, and maintenance of equipment and pipelines, ensuring safety and smooth operation.

The design principle of the lightning grounding system is to divert lightning current into the ground through the proper arrangement of grounding facilities, protecting equipment and personnel. The design principle of the lighting grounding system is to ground the metal parts of lighting equipment to the ground, preventing electric shock and protecting the equipment.

The main aspects of communication engineering include network construction, equipment connectivity, communication protocol configuration, data transmission, and monitoring. Ensuring communication stability and reliability requires adopting appropriate communication equipment and technologies, implementing network security measures and data backup, conducting regular inspections and maintenance of communication facilities to ensure the system's normal operation.

The detailed process of installing and commissioning equipment encompasses several stages: equipment installation, pipeline connections, electrical wiring, system debugging, and performance verification. Key considerations involve ensuring precise installation, secure connections, accurate electrical wiring, and proper equipment parameter configuration. Emphasis should be placed on safety protocols and thorough documentation of relevant data throughout the commissioning process.

Equipment quality assurance includes providing a 1-year warranty period, offering free replacement or equipment repaire during the warranty period (excluding human damages), and providing paid repair and extended warranty services. Free equipment testing is provided outside the warranty scope. Quality issues should be investigated, diagnosed, and addressed by service personnel to ensure timely and satisfactory solutions.

Calculation and payment of taxes should comply with local tax regulations and policies. Taxes include value-added tax, income tax, customs duties, urban construction tax, etc. Specific calculation and payment methods should be based on relevant regulations and policies. It is recommended to consult with local tax authorities or authorize an accountant for tax-related matters.