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The Code for Design of Compressed Air Stations was reviewed and approved by the Eighth Design and Research Institute of the former Ministry of Machinery and the Third, Fourth and Seventh Design and Research Institute of the former Ministry of Machinery, China Aviation. The Industrial Planning and Design Institute, Zhongnan Electric Power Design Institute, Hunan Metallurgical Planning and Design Institute and other revision groups jointly revised the national standard "Compressed Air Station Design Specification" GBJ 2990. The review of the new national standard "Code for Design of Compressed Air Stations" (GB 50029) (hereinafter referred to as the "Review Draft") has been completed.
On August 14-17, 2001, China Machinery Industry Survey and Design Association was commissioned by the China Machinery Industry Federation to hold a review meeting in Shanghai. Participating in the review meeting were 22 units of the Ministry of Construction Standards, Machinery, Electronics, Petrochemical, Metallurgy, Electric Power, Shipbuilding, Aviation, Aerospace, etc., 25 technicians and experts. In the spirit of being responsible to the country, the participants carefully and carefully reviewed the relevant issues in the review of the "Regulations" in accordance with the chapters and articles, and put forward many constructive opinions.
The main deliberations are as follows: With the continuous development of industrial production technology, new requirements for the application of compressed air have been put forward. The revision group adapts the original specification to a working pressure less than or equal to the gauge pressure of 0.
8Pa, the single machine displacement is less than or equal to 100. The working pressure is less than or equal to the gauge pressure is 1.25Pa, and the single engine exhaust is less than or equal to 500. It is necessary and appropriate to make such modifications for the revision group.
Second, centrifugal air compressors have been widely used in petrochemical, electronics, textile, pharmaceutical and other industries, and there are no provisions in this regard in the original specifications, designers have no rules to follow. The Review Draft adds provisions in this area to expand the scope of the models to which this Code applies, and to improve and enrich the content, which is beneficial to designers.
Third, the problem that compressed air stations are located in other buildings or adjacent to other buildings is directly controversial. According to the investigation, the revision group stipulated the stipulations and the permit conditions set in the terms of the review draft, which can solve the situation that some enterprises are inconvenient to set up independent stations. It is technically feasible and safe, which is a breakthrough in the review.
4. The chapters of the Electrical and Thermal Measuring Instruments and Protection Devices are reviewed in the “Review Draftâ€. The methods of measuring, alarming and protecting the various models are listed in the form of an appendix to make the provisions more compact. Perfect than the original specification.
The meeting instructed the revision team to consider the setting of the instrumentation in the local instrument and control room, and appropriately reduce the setting standards on the premise of ensuring safe production.
5. The selection of compressed air pipeline materials is changed from the original two-grade material selection to the fourth-speed material selection. The content is specific and operability is strong. The meeting recommended that the ordering of the four grades should be adjusted from low to high according to the requirements of the materials. The engineering plastics and composite steel pipes proposed by individual representatives at the meeting, due to the lack of current experience, decided not to be included in the specification after discussion at the meeting.
6. According to GB T 1327991, the water pressure system test pressure of the hollow press is 0.6Pa, that is, the working pressure is 0.
According to 4Pa, the upper limit pressure of the cooling water supply of the piston air compressor is changed from 0.3Pa of the original specification to 0.4Pa, and the lower limit pressure is changed from 0.07Pa of the original specification to 0.1Pa. This is beneficial to better ensure the cooling of the unit and facilitate the circulation. The reflux of the cooling water. Both technically and safely, it is reliable and creates conditions for a single pump circulation system and is also energy efficient.
VII. The meeting disaggregated opinions on the fire hazard categories of large centrifugal compressor station buildings. It is hoped that after the revision group meeting, it will be determined after coordination with the fire department of the Ministry of Public Security and the “Building Fire Protection Design Specification†management group.
8. For other constructive comments made by the representative, the revision team is requested to make revisions and adjustments based on careful research.
IX. The contents of the Review Draft were basically complete and no major quality problems were found during the review.
Participants were satisfied with the revision work, the evaluation was high, and it was passed with warm applause. The meeting held that the "Review Draft" can be submitted for approval and release after revision.
During the meeting, all the delegates also visited the Fuyang Co., Ltd., an air compressor manufacturing unit.
(China Machinery Industry Survey and Design Association Xu Hui contributed) The first batch of mechanical and shipbuilding-level construction cost consulting institutions with the completion of decoupling and qualification approval, the Ministry of Construction announced the first batch of national completion on July 17, 2001 with Announcement No. 28. A total of 282 Grade A project cost consulting institutions have been selected for decoupling and qualification certification, including 17 machines and ships: Machinery Design Department, Ministry of Machinery Industry Design and Research Institute, Ministry of Machinery Industry, Second Design and Research Institute, Machinery Industry Department Third Design Institute, Ministry of Machinery Industry, Fourth Design and Research Institute, Ministry of Machinery Industry, Fifth Design and Research Institute, Ministry of Machinery Industry, Sixth Design and Research Institute, Ministry of Machinery Industry, Seventh Design and Research Institute, Ministry of Machinery Industry, Eighth Design Institute, Machinery Industry Department, Ninth Design Institute, Ministry of Machinery Industry, Tenth Design and Research Institute, Ministry of Machinery Industry, Tenth Design and Research Institute, China National Machinery Design and Research Institute, Ministry of Machinery Industry, Automotive Industry Planning and Design Institute, Dongfeng Design and Research Institute, China Shipbuilding Industry, Design and Research Institute, Beijing Xinghexin Special List of Steel Structure Engineering Design for Light Houses of Engineering Cost Consulting Co., Ltd. (China Machinery Industry Survey and Design Association
On June 25, 2001, the Ministry of Construction announced in the construction [2001] No. 130 document that there are 37 Class A qualifications for the national light-duty house steel structure engineering design, including 3 members of the China Machinery Industry Survey and Design Association. .
The ninth design of the Ministry of Machinery Industry specializes in the design of steel structures for light-duty houses. Grade A (single-layer steel frame, frame, multi-layer frame, grid, net shell). Light Industry Steel Structure Design of the Automotive Industry Planning and Design Institute of the Ministry of Machinery Industry Special Grade A (single-layer steel frame, shelf, multi-layer frame, grid, net shell) Fujian Provincial Machinery Industry Design Institute Light-duty house steel structure engineering design special grade A (single-layer steel frame, grid) environmental engineering special project The design qualification list (members of China Machinery Industry Survey and Design Association) on June 15, 2001 announced the construction of [2001] No. 122 document 13 national environmental engineering special design grade A qualification units, including China Machinery Industry Survey and Design Association There are 2 member units.
Shanghai Mechanical and Electrical Design Research Institute Environmental Protection (Exhaust Gas) Grade A Luoyang Mining Machinery Engineering Design and Research Institute Environmental Protection (Wastewater, Waste Gas) Grade A â—‹ Renaming: According to the State Council Office of the State Council issued [2000] No. 71 spirit, by the State Administration for Industry and Commerce The General Administration of Management approved the Electronic Tenth Design and Research Institute of the Ministry of Information Industry from August 7, 2001 to the Information Industry Electronics Tenth Design and Research Institute. The address, telephone and fax are not changed.
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