Emerson's Fisher 461 Angle Valve provides a safety solution for Pucheng's clean energy gasification plant

The Fisher 461 valve is a self-cleaning, large outlet angle valve with a Venturi-style outlet, ideal for applications where high pressure drop, slurry, or flash evaporation may be present

Pucheng Clean Energy Chemical Co., Ltd., located in Shaanxi, has an annual output of 700,000 tons of coal-to-olefins capacity, adopts the gasification process of the world's most advanced Texaco clean coal gasification technology, uses bituminous coal in Shennan mining area of Shaanxi Coal Group Corporation as raw material, and uses advanced and mature patented technology, production technology and equipment at home and abroad to realize the deep processing and on-site transformation of primary energy products into resources, and provide efficient and clean olefin products that are in short supply in China.

There are 7 sets of gasifiers in the whole plant, and it is also the third gasifier device in China. Due to the lack of practical application experience in China and the high pressure of the gasifier, Hualu Engineering Company and Pucheng Energy and Chemical Company have put forward very high requirements for the technical performance and performance of key equipment and instruments, especially the high-pressure and low-pressure black water angle valves.

Emerson's Fisher 461 Angle Valve provides a safety solution for Pucheng's clean energy gasification plant

The medium under the black water working condition has a certain corrosiveness and contains solid particles, serious erosion, and the temperature is high, the pressure difference is large and there is a resolution phenomenon under the high pressure working condition, and a large amount of gas dissolved in the liquid is suddenly released due to the decrease in pressure after the valve. The high-pressure black water angle valve is mainly used to adjust the liquid level of the chilling chamber and scrubber, which plays a very important role in the safety and survival of the whole production, so it is very critical to choose it, and it is also determined that the control valve used for these positions must have a very safe and reliable guarantee in terms of structure, performance and quality.

In view of the particularity of the high and low pressure black water treatment conditions of the gasification unit, the Fisher® China chemical team has fully communicated and exchanged with the Fisher® Asia Pacific team and the Wuqing R&D center team before submitting the technical solution, and provided users with the most suitable 461 venturi angle valve with independent intellectual property rights under this working condition.

The Fisher®461 Venturi Angle Valve has a unique body structure: a separate upper bonnet ensures that the packing material will not be worn by particles in the medium and damage the stem; The shaft sleeve with self-cleaning effect ensures the stability of the valve core on the one hand, and has a self-cleaning effect on the valve core on the other hand; Smooth flow channel, so that the flow channel has little interference to the fluid; The special material spool and base adopt Fisher's® nesting technology and positioning technology with independent intellectual property rights to ensure that the spool will not loosen or even fall off in the violent erosion and vibration; The specially designed venturi outlet ensures that a large amount of gas can be discharged out of the valve cavity quickly, ensuring that the pressure behind the valve will not be held behind the valve to cause abnormal liquid levels in the quenching chamber and scrubber, which does not affect the whole process and reduces the damage of flash evaporation and flushing; The large space of the valve cavity, coupled with the solid upper part and lining guidance, makes the operation of the valve more stable; The valve body has a flush port to clean the entire trim and cavity through the flushing of external liquids or gases in the field, thereby improving the control performance and extending the life of the valve. The excellent performance of the 461 angle valve has been verified in the similar devices of domestic customers, and its safe and reliable performance has been greatly praised by users since 2009. Based on the proven track record in the Texaco Gasification Plant's blackwater service, Fisher® worked closely with its partner in the Southwest Region, Chengdu Sailai Technology Co., Ltd., to deliver a competitive solution.

After several rounds of fierce competition, Fisher® finally won the recognition of Hualu Engineering Company and Pucheng Chemical Company with Emerson's strong support for this project, with Fisher's professional technical support and perfect after-sales service in the field of control valves, as well as the safe and reliable performance of the 461 Venturi angle valve, and won the entire project gasification unit 66 high-pressure and low-pressure blackwater operating angle valves. Winning this project is a testament to Fisher's® commitment to providing the best solutions for our customers. We firmly believe that taking the Pucheng project as an opportunity, Fisher® will make persistent efforts to provide users with the best products and services with better control valve quality, better performance and more perfect solutions.

Emerson's Fisher 461 Angle Valve provides a safety solution for Pucheng's clean energy gasification plant

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