China News Service, Chengdu, May 14 (Ma Chihai) "It is a great honor to contribute to the smooth running of the first large-scale event held by Dong'an Lake Sports Park!" 2021 National Gymnastics Championships and Tokyo Olympic Trials, the 14th The National Games Qualifying Tournament came to a successful conclusion a few days ago. Recently, Chen Huixing recalled the experience of protecting the game with a proud look.

　　"Meet in Happy Chengdu" 2021 National Gymnastics Championships, Tokyo Olympic Trials, and the 14th National Games Gymnastics Qualifying Tournament kicked off in Chengdu on May 4 for 6 days.

This is also the first appearance of the Dongan Lake Sports Park multifunctional gymnasium since its completion.

　　And Chen Huixing is the mechanical and electrical installation project manager of the Dongan Lake Sports Park multi-kinetic energy stadium, small arena, and swimming pool of the Dongan Lake Sports Park of the China Construction Second Bureau. The task of ensuring the competition this time, no better than his team to understand how to operate the various control systems.

　　"This is the first show of the multi-functional gymnasium, and it is also a big test of the quality of our projects." Chen Huixing said that as early as March 24, the project department had prepared to set up an event protection team with a total of more than 100 people, with "professional services going all out." The attitude of participating in the event guarantees various tasks.

　　"After May Day, the highest temperature in Chengdu soared to 35°C and the lowest was 14°C. At noon, the clothes were wet with sweat, but at night they had to wrap up their clothes. There are more than 20 teams and more than 20,000 spectators in the stadium, and the temperature must be maintained at 25-26. ℃. If the temperature is not well controlled, the stadium will become a "big steamer" under the sunlight, which will directly affect the performance of the players and the comfort of the audience.

　　However, entering the stadium is like another world: the temperature here is comfortable and balanced, like a spring breeze.

The multifunctional stadium covers an area of ​​90,000 square meters, which is equivalent to 12.5 standard football stadiums. The vertical height of the stadium is 40 meters. The constant temperature control of such a large space has always been a problem in the industry. How did the match team achieve it?

　　Chen Huixing stated that the project’s refrigeration unit installation adopts CDMA construction technology and prefabricated computer room design. According to the size and location of the on-site air conditioning outlet, the members of the ventilation and air-conditioning competition team set up 17 auxiliary measurement points to monitor the temperature in the site every 30 minutes. , And intelligently feedback to the operator of the refrigeration host to adjust the air volume of the refrigeration host in real time to ensure that the temperature fluctuation inside the field is less than 1℃.

　　"Air-conditioning temperature control is only one aspect of it," Chen Huixing said that the support team has also carried out comprehensive control of ventilation, fire protection, water supply and drainage systems.

　　From 7:00 in the morning to midnight, the water supply and drainage team ran around the boiler room, shower room and any water supply and drainage pipes passing by.

Water supply test, leak inspection, drainage and drainage...This cycle is repeated until the end of the evening race.

"Heat medium water pressure is 0.45 MPa, municipal water pressure is 0.35 MPa, and boiler water pressure is 0.2 MPa..." Huang Jiansong, the trainee foreman of water supply and drainage, graduated less than a year, and is still a new employee.

　　At 11 o'clock in the night, the stars rose, and it was time for the electrical security team to work.

Production manager Pan Jialuo led the electric security competition team to fight until 6 a.m., shuttled through the lighting area, media area, filming area and other major "big power users", and checked more than 3,000 electricity consumption points one by one, effectively guaranteeing CCTV The live broadcast team followed the signal production level and technical standards of the Olympic Games to broadcast the event, and millions of people watched the wonderful game through the Internet.

　　When they left the field, it was when the other guard groups entered the field. Sometimes the two sides could meet each other to encourage each other, but more often they were passing by to their respective work areas.

"In 11 days, the sole was thinner, and the WeChat step count exceeded 20,000." Pan Jialuo used a few words to describe the 11 days and nights of fighting.

　　On the evening of May 9th, with the final award, the event officially came to an end.

With the support of the tournament team day and night, there was no error in the lighting, power supply, and emergency handling. The work of the event was praised by Miao Zhong, director of the Gymnastics Management Center of the State Sports General Administration, and Chen Ying, a CCTV commentator.

　　"We are the team behind the scenes, but we are also struggling and sprinting in our own competition. There is no doubt that our results are good this time." Chen Huixing finally summarized his work in this way.

　　On the same field, the members of the 100-person event protection team of the China Construction Second Bureau Installation Company were unknown and selflessly dedicated.

They have never worn gold or silver, but the medals that athletes hang on their chests are destined to have a glory that belongs to them.

(Finish)