——Solution of Gas Refueling with Piped Gas Case Case Background Tianjin Huayuan Times Metal Products Co., Ltd. is a subsidiary company of Tianjin Huayuan Industry (Group) Company and is located in Yangjiayuan Industrial Zone, Shuangtang Town, Jinghai County. Covers an area of about 180,000 square meters, the current total investment of 300 million yuan, the latter part of the total investment of more than 10 billion projects. The main products are high-quality galvanized steel wire and stranded wire, etc. The products are exported to the United States, Europe, Japan, South Korea and other countries and regions. With the development of the business, many foreign customers are afraid to enter the forklift production site where smoke is thick, and the number of young workers leaving the scene after the 90s is increasing. However, the number of negotiations with foreign customers on the ground is getting bigger and bigger. Due to the increasing importance attached to the maintenance of the company’s image and the health of employees, it is urgently necessary to reconstruct or replace new diesel vehicles with highly polluting diesel forklifts. Considering that many forklift trucks are newly purchased within 3 years, all scrapped waste is too large and uneconomical. For the purchase of a battery forklift, the one-time purchase cost exceeds the company's budget, and the battery pack in the later period needs to be replaced periodically. The cost of the battery bank group accounts for a very high proportion. Therefore, the following reform requirements are proposed: First, to contribute to energy conservation and consumption reduction of the company. Increase business efficiency. Second, completely solve the forklift exhaust emissions pollution, to solve the site staff's personal health and safety. Third, to provide economic and reliable, the company can afford the old forklift transformation program. Fourth, provide practical forklift fuel supply program.
Hefei Baofa helps Tianjin Huayuan to solve the forklift pollution package solution. Hefei Baofa Power Technology Co., Ltd. is a clean energy R&D and application enterprise, and is dedicated to implementing national energy conservation, emission reduction, and clean energy development and utilization. It is mainly engaged in the production and sale of non-road gas engines and the remanufacturing of gas engines for diesel engines of forklifts. As a leading gas engine system supplier in China, we now provide a full set of gas forklift complete set solutions for China’s forklift listed company, Anhui Heli Co., Ltd., and is a supporting enterprise of this unit.
At the request of Tianjin Huayuan Times Metal Co., Ltd., both parties decided to carry out gas-fired transformation of all nine diesel forklifts in the plant and helped provide a complete set of gas-filled solutions. In the end, it successfully completed the four demands of the users, and in passing, saved 55% of the diesel cost for the user, saving more than 300,000 fuel costs per year.
The specific implementation of gas conversion forklifts is as follows:
1. Remove the piston of the original diesel engine and change it to a piston of the gas engine in order to reduce the compression ratio and make it more suitable for gas work. Compression ratio of diesel is 18-24, gas is usually only 9-13, so the compression ratio must be reduced, and redesign the combustion chamber according to the characteristics of gas combustion to achieve faster and more full combustion, shorten the flame propagation distance to reduce knock tendency.
2. Remove the original diesel cylinder head and change the cover of the combustion cylinder with the spark plug installed. The spark plug is generally installed at the position of the original diesel nozzle. The material of the various parts of the combustion cylinder cover must meet the design requirements of high temperature.
3. A set of gas systems, including a proportional mixer for precise fuel adjustment, is removed while removing the original diesel supply system.
4. A separate gas-fired Ignition System, including a diagnostic ECU, is used to control the engine's internal fuel injection and control exhaust emissions. Various types of sensors, ignition coils, spark plugs, electronic throttles, electronic accelerator pedals, etc.
In this way, a diesel engine forklift was successfully converted into an advanced electronically controlled gas forklift. The gas forklift gas supply and refueling program utilizes the pipeline natural gas gas source inside the plant, connects with the natural gas compressor, and then adds a group of pressure storage gas cylinders to build a small-scale CNG refueling station dedicated to the plant to refuel the CNG forklift. Because pipeline gas has high stability and low cost of gas source, using this solution can greatly reduce the user's cost of use and reduce the negative impact of diesel shortage.
The working principle of compressed natural gas filling station:
The working principle of the refueling station is to purify the natural gas sent to the refueling station through the pipeline, and then pass the compression system to bring the pressure to 25 MPa, pressurize it into the high-pressure gas cylinder group, and then compress it through the air gun. Natural gas is added to the forklift's own high-pressure cylinder.
Compressed natural gas refueling stations are usually composed of six systems, namely, pressure regulating and metering systems, purification and drying systems, gas compression systems (machines), gas storage bottles, equipment control systems, and air guns.
The success and harvest of the cooperation project 1. The economy is obvious. Compared with diesel fuel, natural gas forklifts have considerable savings, and 9 forklift trucks can save more than 300,000 yuan annually.
2. The engine operating conditions are improved. The gas engine series reduces carbon deposition and improves lubrication. In addition, due to the high octane number of gas, smooth engine operation, and improved engine life, noise is reduced a lot.
3, Superior control system and gas system, full electronic control system adopted by our company, automatic over temperature protection, EBD fault diagnosis interface, accurate control of gas, etc. The gas system adopts the American NGVI or IMPCO brand. This system is also a forklift. The listed company, Anhui HeLi Co., Ltd., is a designated product with high reliability.
4. Outstanding environmental protection, eliminating the PM2.5 and black smoke emission of particulate matters, greatly improving the environment of the enterprise and receiving wide acclaim from field staff.
About Baofa Hefei Baofa Power Technology Co., Ltd. is a clean energy R&D and application enterprise, and is dedicated to implementing national energy conservation, emission reduction, and clean energy development and utilization. It is mainly engaged in the production and sale of non-road gas engines and the remanufacturing of gas engines for diesel engines of forklifts. The dual-fuel engine developed by the company is the perfect combination of multi-point EFI petrol engine technology and gas-fired electric control technology, and has now passed the rigorous testing of the Anhui Heli Test Center. The company has created multiple Chinese records and successfully developed a number of firsts in China: multi-point electric-jet gasoline engines for forklifts, electronically controlled LPG/LNG/CNG single-fuel engines for forklifts, and China's first natural gas + multi-point EFI gasoline engine ( Dual fuel), China's first liquefied gas + multi-point EFI gasoline engine (dual fuel).
——Solution of Gas Refueling with Piped Gas Case Case Background Tianjin Huayuan Times Metal Products Co., Ltd. is a subsidiary company of Tianjin Huayuan Industry (Group) Company and is located in Yangjiayuan Industrial Zone, Shuangtang Town, Jinghai County. Covers an area of about 180,000 square meters, the current total investment of 300 million yuan, the latter part of the total investment of more than 10 billion projects. The main products are high-quality galvanized steel wire and stranded wire, etc. The products are exported to the United States, Europe, Japan, South Korea and other countries and regions. With the development of the business, many foreign customers are afraid to enter the forklift production site where smoke is thick, and the number of young workers leaving the scene after the 90s is increasing. However, the number of negotiations with foreign customers on the ground is getting bigger and bigger. Due to the increasing importance attached to the maintenance of the company’s image and the health of employees, it is urgently necessary to reconstruct or replace new diesel vehicles with highly polluting diesel forklifts. Considering that many forklift trucks are newly purchased within 3 years, all scrapped waste is too large and uneconomical. For the purchase of a battery forklift, the one-time purchase cost exceeds the company's budget, and the battery pack in the later period needs to be replaced periodically. The cost of the battery bank group accounts for a very high proportion. Therefore, the following reform requirements are proposed: First, to contribute to energy conservation and consumption reduction of the company. Increase business efficiency. Second, completely solve the forklift exhaust emissions pollution, to solve the site staff's personal health and safety. Third, to provide economic and reliable, the company can afford the old forklift transformation program. Fourth, provide practical forklift fuel supply program. 
