Chlorine is the most common and popular type of disinfectant for hot tub and spa, the main purpose of which is to sanitize, disinfect and oxidize contaminants in the water, therefore to provide protection to people. The chlorine that is active and able to sanitize and oxidize contaminants in the water is referred to as free chlorine residual. Chlorine that has already used up its ability to sanitize by reacting with contaminants is called combined chlorine. Total chlorine is the sum of both free chlorine residual and combined chlorine. The free chlorine and total chlorine level in your water should be between 1 and 3 ppm (mg/L).
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[China Agricultural Machinery Industry News] On December 1, according to the Announcement of the Ministry of Environmental Protection in 2016 on the implementation of the national third-stage non-road mobile machinery diesel engine exhaust pollutant discharge standards, all manufacturing, import and sales of agriculture Machinery shall not be fitted with diesel engines that do not meet the discharge requirements of the third stage.
Agricultural machinery industry needs to build a new competitive advantage when entering the "National Three" era
Since then, China's agricultural machinery industry has fully entered the "National Three" era. The implementation of the national three-switch is an important measure and means to implement national policies and promote the development of the industry. At present, the agricultural machinery industry has presented the stage characteristics of “structural optimization, quality improvement and efficiency adjustmentâ€. Grasping the development trend and constructing new competitive advantages have become the inevitable choice for agricultural machinery enterprises.
The national three switch is significant
Environmental protection is an urgent task, and upgrading diesel engine emissions to the national three standard is an inevitable choice. At present, the nodes for implementing the national three handover are clear, the path is clear, and the task is clear. For agricultural machinery enterprises, the earlier the switch, the easier it is to grasp the initiative of market competition.
Strong push at the policy level. Driven by a series of national policies to promote agriculture and benefit farmers, the structural transformation of China's agricultural machinery industry has steadily advanced, the pace of upgrading agricultural machinery products has accelerated, and the level of agricultural equipment has been steadily improved, which has strongly supported the development of “agriculture, rural areas and farmersâ€. At the same time, the problem of energy saving and emission reduction of agricultural machinery has become increasingly prominent. Saving agricultural machinery fuel and reducing emissions of sulfur dioxide and carbon monoxide in agricultural machinery operations has become an important task. In order to promote non-road machinery pollution reduction and improve the quality of the atmospheric environment, in accordance with the requirements of the Law of the People's Republic of China on Air Pollution Prevention and Control and the Action Plan for Air Pollution Prevention and Control, in conjunction with the particularity of the agricultural machinery industry, relevant government departments implement the "non-road" step by step. The third-stage standard for the emission limit and measurement method of diesel engine exhaust pollutants for mobile machinery (China's third and fourth stages) (GB20891-2014). From the field of mainframe sales, since December 1, 2016, all agricultural machinery manufactured, imported and sold shall not be equipped with diesel engines that do not meet the requirements of the third phase of the Non-Road Standard. The implementation of the national three emission standards can significantly reduce the gaseous substances and solid materials polluting the environment such as nitrogen oxides, hydrocarbons, carbon monoxide and particles. The annual emission of nitrogen oxides is reduced by more than 2 million tons, which can effectively alleviate the increasingly severe environmental protection. pressure.
Steady optimization at the industrial level. The “National Three†handover will promote the agricultural machinery industry to implement a new round of technological transformation and upgrading, accelerate the upgrading of manufacturing equipment, core technologies and product services, and has a milestone significance for the development of the agricultural machinery industry. The “National Three†switch of agricultural machinery products is a systematic project. Due to the harsh working environment of agricultural machinery products, scientific planning, system optimization and comprehensive solution are needed from the stages of design, test, small batch release, continuous improvement, mass sales and after-sales service. The basic configuration of tractors, harvesting machinery and other products needs to be re-optimized, requiring diesel engine enterprises to have corresponding technical accumulation and manufacturing experience; the mainframe enterprise can achieve the integration of R&D, manufacturing and sales, improve the matching of diesel engines and main engines, comprehensive Improve the function and performance of products and improve the competitiveness of domestic and foreign markets. At the same time, the “National Three†switch can enhance the industrial quality improvement of the entire value chain of R&D, procurement, manufacturing, sales and service, accelerate the upgrading of traditional manufacturing industry chain, manufacturing technology innovation and application, and effectively improve the competition ecology of the entire industry chain. A structural upgrade with terminal requirements is implemented to drive structural quality improvement on the supply side.
Energy efficiency and environmental protection need to increase efficiency. About 20% of the total diesel consumption of more than 100 million tons per year in the country is used for various types of non-road mobile machinery. Domestic diesel engine energy consumption is about 30% higher than the foreign average, mainly for small and medium-sized, medium and low-end products, low efficiency, high energy consumption and excessive emissions. These non-road mobile machinery are one of the important emission sources of nitrogen oxides and granules. At present, the control technology of engine pollutants emission from domestic first and second agricultural machinery products is still relatively backward. It is estimated that about 2,000 tons of nitrogen oxides will be emitted each year. From the perspective of farmland operation, the diesel consumption of tractors and ploughing operations ranked first, harvesting machinery operations and planting machinery operations, ranking second and third respectively; from the perspective of regional diesel consumption, winter wheat area, northeast and other major grain production areas Diesel consumption is more. As an important measure of environmental protection, we will implement the “National Three†switchover to reduce pollutant emissions from agricultural machinery products in “Spring Farmingâ€, “Three Summers†and “Three Autumns†operations, reduce “smogâ€, increase the number of blue sky and white clouds, and improve air quality. The reduction of diesel energy consumption and the improvement of operating income have been recognized, understood and welcomed by the majority of agricultural machinery users.
Realistic problems still need to be solved
The “National Three†switch of agricultural machinery products is a systematic project, which requires all parties to coordinate and promote together. At present, there are still restrictions on product quality, market demand, and user purchasing ability in the “National Three†handover.
Manufacturing and service capacity constraints. The "national three" switch is essentially an upgrade of the manufacturing capacity of the enterprise. At present, only about 10% of agricultural machinery products in China have reached the international level and the international advanced level. The remaining 90% of the products are equivalent to the level of foreign developed countries before the 1970s, and there is a big gap with the level of agricultural machinery manufacturing in developed countries. . Key components such as Guosan's electronic control technology are still subject to people, and it is difficult to meet the manufacturing needs of batch switching. The independent innovation capability of enterprises is limited. The agricultural machinery country in Europe is the second country to the third country. The transition period is 7 years. This is the R&D and manufacturing capacity of the traditional industrial powers with more than 200 years of experience. China's diesel engine industry only has leading companies with years of R&D and manufacturing experience. Most companies still do not have the ability to develop, trial, support and continuously improve in the short term. Guosan has to keep up with the maintenance and repair facilities. As some of the mainframe enterprises are still experiencing the products on the second national product, it is an urgent problem to improve the skills of service personnel as soon as possible.
October 20, 2021