Pipeline applications in the wind power industry

The media that often needs to be transported are divided into four categories: ▶  Hydraulic oil ▶  Gear oil ▶   Coolant ▶   Antifreeze oil
The parts to which the pipeline is applied
▶   Yaw brake
Hydraulic oil delivery required
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SR2SN

▶   Inside the cabin
Need to transport gearbox oil and coolant
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SR1SN

▶   Wind turbine locking cylinder
Hydraulic oil delivery required
Recommended products: SR2SN, PH2SN
▶   Generator cooling
Need to transport water ethylene glycol coolant
Recommended products: SR1SN, PH1SN
▶  Current transformer cooling
Need to transport water ethylene glycol coolant
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The inverter adopts a water circulation cooling method, and the advantage of water cooling is that the specific heat coefficient of water is large. For the same volume of water and air, under the same temperature rise, water absorbs more heat.
Pazhuo Pipeline has a professional technical research and development team, working closely with the wind power research and development departments of multiple listed companies to provide customized services to customers.
Due to the different thermal expansion and contraction rates of metal and rubber pipes, hose assemblies are prone to leakage at low temperatures. Therefore, hose assemblies used in wind power equipment have very strict requirements for low temperature resistance.
The hose assembly of the Pazhuo pipeline uses the self-developed low-temperature special joint WG series.
The hose assembly can withstand low temperatures up to -40 ℃ and is guaranteed to have a service life of 5 years. High pressure: 20Bar.
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Continental Brand Introduction:
ContiTech is a leading global manufacturer in the field of non tire rubber and plastic technology. As a development partner and original manufacturer, the company is committed to designing, developing, and producing various functional components and systems for the automotive industry, machinery and instrument manufacturing, railway vehicles, printing, construction, chemical and petrochemical industries, navigation, aviation, and mining industries.
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Q&A on pipeline systems in the wind power industry:
1. Question: Is your stainless steel pipe seamless or seamless?
Answer: We recommend using seamless steel pipes. Currently, in the industry, except for Vision, which requires seamless steel pipes, everyone else has switched to using seamless steel pipes. Firstly, the price is cheap, and our company has produced pipelines, which can provide an excellent price. Secondly, due to the low pressure of the pipelines, it is usually only 6-7 kilograms, so seamless steel pipes are not needed. Thirdly, our company measures 100% of the pressure before leaving the factory to ensure the reliability of the pipelines.
2. Question: How much is your company's wind power hydraulic business? Are there any products that can be recommended?
Answer: Our wind power hydraulic system entered relatively late compared to liquid cooling, mainly because we had previously overlooked this area of business. However, this year our company has been relatively fast, mainly supplying Siemens Gomesa and CRRC wind power directly. We are also in talks with Yuanjing and Jinfeng. In addition, our company has also cooperated with Terejia, Chuanrun, Mintai, Nanjing Xunlian, etc. Our company can produce hydraulic steel pipes and hydraulic hoses, and has a hydraulic steel pipe production workshop. The hydraulic pipes are mainly products of Ma Pai and Gates.
3. Question: Currently, hydraulic pipe suppliers in wind power are experiencing batch leaks. How do you, Pazhuo, avoid risks?
Answer: Firstly, Pazhuo measures 100% pressure to ensure that every product is qualified before leaving the factory. Secondly, hydraulic pipe leaks mainly occur in hydraulic hoses, and there are many reasons for leaks. In order to avoid this risk, our company uses original matching joints, that is, Ma brand uses Ma brand joint sleeves, Gates uses Gates joint sleeves, and presses according to the recommended clamping parameters by the manufacturer. The reliability of the product is much higher than that of domestic products. Thirdly, our company also needs your company to provide accurate environmental data. For environmental data, our company will select corresponding products.
4. Question: What reliability tests do your pipelines usually undergo?
Answer: For wind power, we conduct appearance inspection, size inspection, and 100% airtightness test before leaving the factory. For product type testing, we provide different test reports for different customers, such as high and low temperature alternating test, high temperature test, low temperature test, salt spray test, cleanliness test, temperature impact test, compatibility test, withstand voltage test, insulation test, aging test, flame retardant test, explosion test, pull-out test, pulse test, etc