From July 16 to July 17, 2020, the national group standard publicity and implementation meeting for slurry long-distance pipeline transportation and the second meeting of the third slurry concentration and pipeline transportation Academic Committee (hereinafter referred to as the "academic committee") were successfully held in Gongqing City, Jiangxi Province. The meeting was hosted by the academic committee of slurry concentration and pipeline transportation and Changsha Nonferrous Metallurgy Design and Research Institute Co., Ltd., organized by the member China Petroleum Pipeline Engineering Co., Ltd. and co organized by Jiangxi ruiti Pipeline Co., Ltd. The theme of the meeting was the publicity and implementation of the slurry pipeline group standard (design standard for slurry long-distance pipeline transportation engineering (T / cecs98-2019, edited by Changsha Nonferrous Metallurgy Design and Research Institute Co., Ltd.), coextrusion wear-resistant layer reinforced plastic composite pipe and joint (T / cstm00173-2019, edited by Jiangxi ruiti Pipeline Co., Ltd.) and the discussion of the 2020 work plan and development plan of the academic committee. A total of 33 people, including representatives of the academic committee, drafters of the main participating units of the standard and leaders of relevant departments of the Communist Youth City Government, attended the meeting. Zou Weisheng, the director of the third academic committee, first delivered a welcome speech. Li Xuzhong, the editor in chief of the standard and the design master of the national nonferrous metals industry, explained the content and application of the new standard in detail. Zhang Wenwei, the chief engineer of China Petroleum Pipeline Engineering Co., Ltd. and the national survey and design master, and Yang Mingkun, the general manager of Jiangxi ruiti Pipeline Co., Ltd., delivered passionate speeches.

Based on the important moment of the Centennial birthday of the Communist Party of China and the key node of the historical intersection of the "two centenary" goals, and standing at the height of the era of coordinating the overall strategic situation of the great rejuvenation of the Chinese nation and the great changes not seen in the world in a century, the speech deeply expounds the great significance, key contents and work requirements of carrying out the study and education of party history, which is of great significance to learning the party's history, carrying forward the party's tradition and starting a new journey in the new era Make important arrangements for creating new great undertakings. The speech is strategically located, has a broad vision and profound thought. It is the first lesson of the "opening of school" that makes clear the meaning and inspires people to make progress. It is a history education course that knows history, learns from the present and looks into the future. It is a party spirit cultivation course that sharpens the original heart and keeps the mission in mind. It points out the direction and provides fundamental guidance for the study and education of party history.

The submerged slurry pump is connected with the motor through an elastic coupling. From the direction of the motor, the pump rotates clockwise. Next, our company introduces the assembly and disassembly steps of the submerged slurry pump:

In order to activate the cultural life of employees, display the beautiful image of the company, and improve the cohesion and appeal of the company, the award-winning photography (image) Exhibition "embracing spring and loving our company" held by the powerful pump group was selected on April 26, 2021 after one month of collection. With the active participation of the majority of employees, one first prize, three second prizes and five third prizes were selected according to the results of the audition.

When cavitation occurs in the submerged slurry pump, a large number of bubbles are generated, developed and collapsed, which destroys the normal flow law of the water flow. The overflow area in the flow channel is reduced and the flow direction is changed. Therefore, the energy exchange between the impeller and the water flow is disturbed and damaged, and the energy loss increases, resulting in the rapid decline of the flow, head and efficiency of the water pump, and even the cut-off state.

Standing at the height of coordinating the overall strategic situation of the great rejuvenation of the Chinese nation and the great changes not seen in the world in a century, this paper deeply expounds the great significance, key contents and work requirements of carrying out the study and education of party history, and makes important arrangements for learning the party's history, carrying forward the party's tradition, starting a new journey and creating new great undertakings in the new era. The speech is strategically located, has a broad vision and profound thought. It is the first lesson of the "opening of school" that makes clear the meaning and inspires people to make progress. It is a history education course that knows history, learns from the present and looks into the future. It is a party spirit cultivation course that sharpens the original heart and keeps the mission in mind. It points out the direction and provides fundamental guidance for the study and education of party history.

The national group standard publicity and implementation meeting for slurry long-distance pipeline transportation and the second meeting of the third slurry concentration and pipeline transportation Academic Committee (hereinafter referred to as the "academic committee") were successfully held in Gongqing City, Jiangxi Province. The meeting was hosted by the academic committee of slurry concentration and pipeline transportation and Changsha Nonferrous Metallurgy Design and Research Institute Co., Ltd., organized by the member China Petroleum Pipeline Engineering Co., Ltd. and co organized by Jiangxi ruiti Pipeline Co., Ltd. The theme of the meeting was the publicity and implementation of the slurry pipeline group standard (design standard for slurry long-distance pipeline transportation engineering (T / cecs98-2019, edited by Changsha Nonferrous Metallurgy Design and Research Institute Co., Ltd.), coextrusion wear-resistant layer reinforced plastic composite pipe and joint (T / cstm00173-2019, edited by Jiangxi ruiti Pipeline Co., Ltd.) and the discussion of the 2020 work plan and development plan of the academic committee. A total of 33 people, including representatives of the academic committee, drafters of the main participating units of the standard and leaders of relevant departments of the Communist Youth City Government, attended the meeting. Zou Weisheng, the director of the third academic committee, first delivered a welcome speech. Li Xuzhong, the editor in chief of the standard and the design master of the national nonferrous metals industry, explained the content and application of the new standard in detail. Zhang Wenwei, the chief engineer of China Petroleum Pipeline Engineering Co., Ltd. and the national survey and design master, and Yang Mingkun, the general manager of Jiangxi ruiti Pipeline Co., Ltd., delivered passionate speeches.