The company has dozens of various types of diaphragm compressors, providing cost-effective, safe and reliable combined solutions for hydrogen gas compression. At the same time, it can provide one-stop product services such as product supply - equipment installation - commissioning service - operation and maintenance - maintenance and overhaul.
Diaphragm compressor products of Zhong Ding Heng Sheng brand have been exported to the United States, Russia, India, Australia, Indonesia, Vietnam, Thailand, Singapore, North Korea, South Africa, Timor-Leste, the United Arab Emirates, Taiwan of China and other countries and regions. We can arrive at the domestic site within 24 hours. The whole machine has a 2-year quality guarantee period. It has ranked first in the domestic market for four consecutive years, with a market share of nearly 70%.
Cylinder head and cylinder head curve
The curved surface of the diaphragm compressor cylinder head membrane cavity directly determines the stress distribution of the diaphragm during operation, and has a great influence on the working efficiency of the compressor and the service life of the diaphragm. Zhong Ding Heng Sheng has developed and mastered a set of mature cylinder head membrane cavity curved surface design technology. Our company conducts corresponding variable curved surface design and curvature correction of the cylinder head membrane cavity curved surface according to different operating conditions and application scenarios such as different intake and exhaust pressures and compression media to ensure the optimal cylinder head curved surface to match the operation of the compressor. It is our company's unique "Luo's Curve Technology", which enables our company to have higher compression efficiency than diaphragm compressors of the same cylinder diameter and the same type in the market, which can be increased by more than 15% - 20%, and the service life of the diaphragm is longer. In addition, compared with the original diaphragm compressor cylinder head consisting of three parts: the cylinder block, the oil distribution plate and the cylinder head, the new cylinder block structure developed by our company cancels the oil distribution plate component. The new design structure combines the functions of the original cylinder block and the oil distribution plate, greatly simplifies the processing difficulty, reduces one sealing surface, and improves the oil pressure transmission efficiency of the cylinder block. We are one of the few diaphragm compressor manufacturers in China that master this technology and use it maturely.
Diaphragm
There is a mature simulation technology for the flow field of the compression medium and the diaphragm. The deformation of the diaphragm under different pressures on the oil and gas sides when in the H₂ medium and its theoretical service life have been studied.
To ensure the good mechanical properties and service life of the diaphragm, our company adopts self-developed diaphragm heat treatment technology and surface treatment technology, as well as a fully automatic diaphragm production process. Our company has jointly developed a new type of diaphragm material with the addition of rare earth elements with Fushun Special Steel Research Institute. This material has better mechanical properties and heat treatment stability. Subsequently, through our company's specially designed pickling and passivation process for the diaphragm, various dirt such as oil stains, rust, and oxide scale is removed, and then electrolytic polishing is carried out to significantly improve the surface finish of the diaphragm. For large-sized diaphragms, the sandblasting process is further carried out to improve the surface quality, increase the surface hardness and anti-friction property, reduce surface wear, and improve the service life and durability of the diaphragm. And for low-flow and small-sized diaphragms, the sandblasting process is innovatively omitted to ensure the low roughness of the diaphragm, while reducing the clearance volume of the compressor and improving the efficiency.
Design and manufacture of 22MPa H₂ filling diaphragm compressor
The rapid development of the hydrogen energy industry has made the transportation of hydrogen by 22MPa tube-bundle vehicles an important scenario in "hydrogen production, storage, transportation, and refueling". The GD5 type H₂ filling diaphragm compressor that our company has developed and maturely applied is the mainstream in this market. Due to its efficient compression efficiency, good operational stability, low failure frequency, and reasonable layout structure, it occupies 70% of the H₂ filling market share. Our company entered and actively laid out the H₂ filling market very early. Benefiting from the company's mature design experience in G4/G5 large compressors, for the GD5 type H₂ filling diaphragm compressor, through in-depth research on the characteristics of the H₂ medium and in-depth theoretical research and experimental data feedback on the compressor's operation when compressing this medium, including noise, vibration, cylinder head membrane cavity curve and diaphragm life, gas valve characteristics, oil circuit system characteristics, servo valve characteristics, etc., a reasonable design, production and operation plan for the H₂ filling diaphragm compressor is obtained. And continuously obtain a large amount of operation conditions and after-sales problem feedback from the actual application of customers, and summarize experience to guide design and production, thereby further improving the rationality of the H₂ filling diaphragm compressor product and becoming one of our company's core products in the hydrogen energy industry.
22MPa H₂充装隔膜压缩机设计制造
氢能行业的迅猛发展，使得22MPa管束车运氢成为“氢能制、储、运、加”重要场景，我司针对开发并成熟运用的GD5型H₂充装隔膜压缩机为该市场主流，由于其高效的压缩效率，良好的运行稳定性，低故障发生频率，合理的布局结构，占据了H₂充装市场70%的份额。我司针对H₂充装市场很早入局并积极布局，得益于公司在G4/G5大型压缩机的成熟设计经验，针对GD5型H₂充装隔膜压缩机，通过对H₂介质特性的深入研究，以及在对该介质进行压缩时的压缩机运行情况包括噪声、振动、缸头膜腔曲线及膜片寿命、气阀特性、油路系统特性、随动阀特性等深入的理论研究及实验数据反馈，得到H₂充装隔膜压缩机合理的设计、生产及运行方案，并持续从客户实际应用中得到大量的运行情况及售后问题反馈，并总结经验指导设计、生产，从而进一步提升H₂充装隔膜压缩机产品合理性，成为我司在氢能行业核心产品之一。
Design and manufacture of 45MPa diaphragm compressor for hydrogen refueling stations
The design and manufacture of 45MPa diaphragm compressors for hydrogen refueling stations is also one of our company's core technologies. Through mature static simulation technology and theoretical calculation, a split-type cylinder head dedicated to high-pressure H₂ medium has been developed, adopting a three-layer structure of cylinder block, cylinder head and gland, reducing costs while ensuring theoretical strength; The entire gas path system is also calculated through mature theoretical calculations to ensure high pressure resistance and service life; The cooling system is simulated by CFD of the flow field to ensure that the cooling effect meets the standard; The pipeline layout of the entire gas, water and oil circuits has also been verified for rationality through theoretical calculations by the pulsation analysis independently mastered by our company, and guides the optimization of the pipeline layout to reduce noise and vibration; Thanks to the good market application performance of 45MPa diaphragm compressors for hydrogen refueling stations, our company has achieved a market share of over 40% in the field of hydrogen refueling stations.
加氢站45MPa隔膜压缩机设计制造
加氢站用45MPa隔膜压缩机设计制造也是我司核心技术之一，通过成熟的静力学仿真模拟技术及理论计算，研发了专用于高压H₂介质的分体式缸头，采用缸体、缸盖、压盖三层式结构，在保障理论强度同时降低成本；整个气路系统也通过成熟的的理论计算，保障高耐压及使用寿命；冷却系统经流场CFD模拟，保证冷却效果达标；整个气、水、油路的管路布局也经过我司自主掌握的脉动分析进行理论计算验证合理性，并指导管路布局优化以减少噪音及振动；得益于加氢站用45MPa隔膜压缩机良好的市场应用表现，我司已取得加氢站领域超40%的市场占有率。
The company attaches importance to technological research and development and continuous innovation. It starts from multiple aspects such as market demand orientation, internal development drive, research and development, team incentives and constraints, and establishes a continuous innovation mechanism for technological research and development that meets the requirements of industry development and the company's own characteristics.
The company has set up an R&D team to carry out R&D activities, constantly optimize the R&D system and attract high-level R&D talents. On the one hand, it mobilizes enthusiasm through various incentive methods such as project rewards and job promotions. On the other hand, through a good career development platform and incentive measures, it attracts R&D personnel with scientific research capabilities and rich industry experience to join the company and expand the R&D strength.
In the future, the company will continuously enhance its attraction to R&D talents, establish and improve a talent selection, cultivation, assessment and incentive mechanism that suits the characteristics of the company, and constantly improve the R&D capabilities of the R&D team.
