What Is a Pneumatic Compressor?
An air compressor is a device used to compress gas. Air compressors are similar in construction to water pumps. Most air compressors are reciprocating pistons, rotating blades or rotating screws. Centrifugal compressors are very large applications.
- There are many types of air compressors (air compressors) [1]
- 1 :: oil circulation system [2]
- The compressor is directly driven by the motor, which causes the crankshaft to rotate, and the connecting rod causes the piston to reciprocate, causing the cylinder volume to change. Due to the pressure change in the cylinder, the air is passed through the air cleaner (muffler) into the cylinder through the intake valve. During the compression stroke, due to the reduction of the volume of the cylinder, the compressed air passes through the exhaust valve and passes through the exhaust pipe. The check valve (check valve) enters the gas storage tank. When the exhaust pressure reaches the rated pressure of 0.7 MPa, it is automatically stopped by the pressure switch. When the pressure of the gas storage tank drops to 0.5--0.6MPa, the pressure switch is automatically connected and started. [2]
- a. Traditional aerodynamics: pneumatic tools, rock drills, pneumatic picks, pneumatic wrenches, pneumatic sandblasting
- b. Instrument control and automation devices, such as tool change in machining centers.
- c. Vehicle braking, doors and windows opening and closing
- d. Use compressed air to blow the weft in the air-jet loom to replace the shuttle
- e, food, pharmaceutical industry, using compressed air to stir the slurry
- f. Starting of large marine diesel engines
- g, wind tunnel experiment, underground passage ventilation, metal smelting
- h. Oil well fracturing
- i. Coal mining by high-pressure air blasting
- j. Weapon system, missile launch, torpedo launch
- k. Submarine ups and downs, shipwreck salvage, submarine oil exploration, hovercraft
- l, tire inflation
- m, spray paint
- n,
- The market size of China's air compressor industry has been growing at a rate of more than 8%. From 2010 to 2011, the growth rate even exceeded 28%, and the market size has expanded rapidly. However, in such a huge market, foreign companies have controlled most of the market for a long time. According to forward-looking network data, in 2009, China's air compressor industry had a total of nearly 400 production enterprises, of which the number of domestic-funded enterprises was close to 90%, and total sales revenue was about 6 billion yuan, accounting for 40% of the entire industry; 10%, with a total sales revenue of about 9 billion yuan, accounting for 60% of the entire industry [3]
- Air compressor noise control mainly uses three aspects: muffler, muffle tunnel and sound insulation technology [2]
- The air compressor is one of the main mechanical power equipment of many enterprises. It is very necessary to maintain the safe operation of the air compressor. Strict implementation of the air compressor operating rules will not only help extend the life of the air compressor, but also ensure the safety of air compressor operators. Let s take a look at the air compressor operating rules [4]
- 1. Use of compressed air [5]
- I. Scope and conditions of promotion products [6]
- (1) The popular products are miniature reciprocating piston air compressors, all oil-free lubrication reciprocating piston air compressors, generally fixed reciprocating piston air compressors, general oil-injected screw air compressors, and oil-injected single screw air compressors Machine [6] .
(2) The products applied for promotion of high-efficiency energy-saving volumetric air compressors (hereinafter referred to as high-efficiency energy-saving air compressors) must meet the following requirements:
1. According to the current valid version of GB 19153 "Limited Value and Energy Efficiency Rating of Volumetric Air Compressors", the energy efficiency of air compressors is level 2 and above
2. Recorded through energy efficiency labeling;
3. Pass the nationally recognized third-party agency energy efficiency testing and energy-saving product certification (products that enter the first batch of promotion catalogs should pass energy-saving certification within three months after the catalog is published);
4. Production and use in mainland China;
5. In the past three years, the national product quality supervision and spot check showed that the brand product has not failed.
(3) Supporting motors for high-efficiency energy-saving air compressors should be given priority to selecting high-efficiency and energy-saving motors with energy efficiency level 2 and above.
Second, the promotion of enterprise conditions [6]
Manufacturers applying for the promotion of energy-efficient air compressors must meet the following conditions:
1. is an independent legal person registered in mainland China;
2. To promote the high-efficiency and energy-saving piston air compressor's supporting motor power of not less than 10,000kW, or the screw motor's supporting motor power of not less than 20,000kW;
3. Have the independent brand or legal use right of the applied product for promotion, the same brand can only be applied for promotion by one manufacturing enterprise;
4. Have a complete sales network and product sales, installation, after-sales service and user information management system;
5. Have a complete quality management system and environmental management system.
Promotion period [6]
The promotion period is tentatively scheduled for November 1, 2012 to October 31, 2013.
Promotion of subsidy standards [6]
The financial subsidy standards for the promotion of high-efficiency energy-saving air compressors are as follows:
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- V. Promotion of enterprise qualification application [6]
Enterprises applying for the promotion of high-efficiency energy-saving air compressors shall submit the application report (the specific format is shown in Annex 1) and the following materials (copies with official seals) level by level, and shall be approved by provincial energy-saving authorities, finance departments, industry and information technology departments After review, report to National Development and Reform Commission, Ministry of Finance, Ministry of Industry and Information Technology.
(1) Business license, tax registration certificate and production license;
(2) Promotion of product energy efficiency test reports and energy saving certifications;
(3) Filing certificate of the energy efficiency label of the promotion product;
(4) Certificates of quality management system and environmental management system certification;
(5) Trademark registration certificate and letter of authorization;
(6) Other relevant materials.
The National Development and Reform Commission, together with the Ministry of Finance and the Ministry of Industry and Information Technology, organized experts to review the reported materials, publicize the promotion enterprises, product specifications and models, and implement dynamic management of the catalogue based on the adjustment of product specifications and models of promotion enterprises.
Application and disbursement of subsidy funds [6]
(1) Provincial energy-saving authorities, industry and information technology departments surveyed the annual promotion and use of the region, organized users to promote high-efficiency energy-saving air compressors, informed relevant financial departments at the same level, and reported them to the National Development and Reform Commission and industry. And Ministry of Information Technology.
(2) The Ministry of Finance calculates the scale of subsidy funds based on the investigation and the needs of each province, and advances the subsidy funds to the provincial financial department.
(3) After the relevant units and enterprises purchase and install the high-efficiency energy-saving air compressors published in the catalog published by the state, fill in the purchase and installation status, subsidy fund declaration form (for specific requirements, see Annex 2), and provide proof of purchase invoices and other certification materials. The financial department where the enterprise is located applies for subsidy funds. Specific funding allocation methods shall be formulated by the provincial finance department.
(4) The local financial departments shall timely allocate subsidy funds based on the relevant materials provided by the purchase and installation units and enterprises, and shall enter the relevant information into the "energy-saving products benefiting the people project" information management system in a timely manner in conjunction with the energy conservation department, industry and informatization department.
(5) Within 10 days after the end of the month, the provincial finance department, energy conservation department, industry and informatization department will conduct a comprehensive review of the promotion and use of funds in the region last month, and report to the Ministry of Finance, the National Development and Reform Commission, the Industry and Ministry of Information Technology (see Annex 3 for specific requirements).
(6) The Ministry of Industry and Information Technology, together with the Ministry of Finance and the National Development and Reform Commission, organize relevant agencies to supervise and inspect the promotion and use.
(7) Within 30 days after the end of the year, the provincial financial department shall submit an annual subsidy fund liquidation report to the Ministry of Finance, the Ministry of Industry and Information Technology, and the National Development and Reform Commission.
(8) The Ministry of Finance will liquidate the subsidy funds based on the subsidy fund liquidation report reported by the local government and the supervision and inspection opinions issued by the Ministry of Industry and Information Technology.
Penalties [6]
(1) Fraudulent enterprises shall be punished by means of notification and criticism, cancellation of qualifications for the promotion of high-efficiency energy-saving air compressors, inclusion in the "blacklist" of integrity, exposure in the media, recovery of subsidy funds and double punishment.
(2) Third-party energy efficiency testing agencies that fail to perform testing or issue false testing reports will be punished by notification and criticism, and their energy efficiency testing qualifications for energy-saving products benefiting people will be punished, and related responsibilities will be investigated.
(3) Local authorities are responsible for the authenticity of the application materials. Once found to be fraudulent, it will be punished in accordance with relevant regulations [6] .