Gas-based generator set
Coal seam gas in coal mine gas, or gas according to the new resource evaluation results, China's onshore CBM resources of 36.8 trillion cubic meters, equivalent to the onshore conventional natural gas resources (38 trillion cubic meters), second only to Russia and Canada. The main component of the coal seam gas is methane. When the concentration of methane reaches 5% -16% in the air, it explodes in an open fire, which is the source of the coal mine gas explosion.
CBM is not utilized and discharged directly into the atmosphere with a greenhouse effect about 21 times that of carbon dioxide. Coal gas power generation in coal mine can not only effectively solve coal gas accidents, improve safe production conditions, but also be conducive to increasing clean energy supply, reducing greenhouse gas emissions, and achieve multiple goals of protecting life, resources and the environment.
ⅰ、Low-concentration gas power generation technology
Coal mine gas is high concentration gas and low concentration gas, high concentration gas is more than 25% gas, low concentration gas is gas concentration less than 25% gas. More than 60% of the gas in China is a low concentration of gas containing less than 25% of methane. According to the requirements of the coal mine safety regulations, the gas concentration of less than 25% cannot be stored and transported.
Low concentration gas power generation needs to solve two problems, one is each coal mine itself is different, and is changing at any time, the traditional generator set is difficult; unchanged to change, the other is the safe delivery of low concentration gas.
Puyang Shengke New Energy Co., Ltd. relies on the leading technology in the field of gas internal combustion engine, took the lead in developing a high-concentration gas generator set with excellent performance, and successively developed a high-power low-concentration gas generator set that can be suitable for low-concentration gas, and became one of the earliest manufacturers to master the low-concentration gas generator set technology. Among them, 500KW high concentration gas generator unit and 600KW high concentration concentration gas generating unit have the most excellent performance and high cost performance. The unit adopts electric controlled gas mixer technology, which can automatically control the air-fuel ratio to adapt to the change of gas concentration, suitable for the characteristics of multiple quantity and small coal mines in China. At the same time, low concentration gas safe transportation technology and fine water mist technology are invented to solve the problem of ground safe transportation of low concentration gas.
ⅱ、Basic requirements for low-concentration gas power generation
First, gas pumping system is installed according to the requirements of National Coal Mine Safety Administration, and the gas pumping system must operate normally; secondly, gas pumping volume of pure gas pumping system is about 1 million m3/ years and gas concentration is between 6-25%. After reaching these two conditions, we can have the foundation of building gas power station, if building gas power station can be realized; to promote extraction and safety; the virtuous cycle development of coal mine.
Division of high and low concentration gas:
Coal mine gas includes high concentration gas and low concentration gas and low concentration gas with less than 25%. More than 60% of the gas in China is a low concentration of gas containing less than 25% of methane. According to the requirements of the coal mine safety regulations, the gas concentration of less than 25% cannot be stored and transported.
Basic requirements for low-concentration gas power generation:
1, has installed the gas pumping system as required by the National Coal Mine Safety Administration, and the gas pumping system must operate normally;
Pure gas pumping volume of the 2, gas pumping system is around 1 million m3/ years, and the gas concentration is between 6-25%.
Unit requirements for gas:
Within 1m from the gas inlet valve of the gas unit
1, gas temperature: ≤ 40 ℃;
2, Gas Pressure 3~20kpa, Pressure Change Rate ≤ 1kpa/min;
3, H2S ≤ 200mg/Nm3；
4, For CH4 volume content, high concentration gas generator sets require methane content above 25%, and low concentration gas generator sets require 12% -25% to start normally.
Water content in 5, gas by ≤ 40g/Nm3
6, impurity granularity ≤ 5 μm, impurity content ≤ 30mg/Nm3。
If the combustible gas contains high sulfur and ammonia components, it will not only seriously corrode the spark plug electrode, but also increase the acid value in the oil to corrode the internal parts of the unit, while easy to produce sediment, increase wear and corrosion to the engine.
Our factory can configure a single unit unit covering 500kw-800kw according to the actual needs of the customer. For projects with an installed capacity of more than 1MW, we suggest that customers use multiple 500KW units parallel, with the highest comprehensive cost performance. The station is more stable, convenient maintenance and low maintenance cost.
Ⅱ、Main specifications and technical parameters of high / low concentration gas generator set (WK high concentration, WKI low concentration):
Electrical index of the unit: rated frequency 50HZ (60HZ optional), power factor COS =0.8, rated voltage 400 / 230V, phase line: three-phase four-wire system
If you need additional information on the unit, gas generator set quotes, or unshown power model unit parameters, please contact us.
ⅰ、Technical characteristics of the generator set:
1. International advanced closed-loop electric control technology;
2. Automatic adjustment of air-gas ratio —— of inlet Tecjet gas control valve;
3. —— economy and emission effective improvement using thin combustion control technology;
4. Pre-pressurization mixing technology —— is suitable for low-pressure gas;
5. Digital intelligent ignition module
6. US WOODWARD Corporation EGS Gas Controller
7. Gas and gas source that can adapt to the concentration change;
8. Alternative imported products, the complete machine technology is in the leading domestic and international advanced level
ⅱ、Main configuration of generator unit (closed-loop electric controlled external hybrid gas generator unit):
1. 190 Series Gas Engine
2. Intelligent digital ignition module
3. Siemens Series engines (brushless excitation / autoregulation / multiple voltage output of 0.4kv 6.3kv 10,5kv)
4. Multifunction control cabinet
5. Automatic synchronous detection, automatic load allocation
6. Electric starting system
7. Complete safety protection
8. Multiple cooling cycle modes (open / open / semi-open / integral closed parts are closed)
Ⅳ、Technical instructions of the generator set
1. Standard environmental conditions of generator set
The total atmospheric pressure of 100kPa; The ambient air temperature is 25 ℃; the relative humidity is 30%; under the above conditions, the generator set can reach the rated load output.
2. Supporting generator is optional
The generators supporting the unit are well-known brands at home and abroad: Lilsenma, Siemens, Stanford, Marathon, Inge, Elma, etc.
Warranty period: 12 months after domestic commissioning acceptance or 1000 hours; expire first. Due to product quality problems, free maintenance or replacement, lifetime paid service! (Damable parts, common used parts, human damage, negligent maintenance, etc. are not within the warranty scope) If the original factory adjustment is implemented, the original factory consolidation regulations!
After the shelf life, users enjoy the lifetime maintenance of the product, accessories replacement only costs, no labor fees. In case of serious product loss or special circumstances, we can go to the company for overhaul or replace the machine.
Users can call the after-sales service team if the product is inconvenient or needs to provide technical support. We will send a commissioner to the site for inspection and repair after receiving the phone call or fax, and continue to resume the product operation as quickly as possible.
Puyang Shengli New Energy Co., Ltd. is a professional gas generator set manufacturer, the product quality is reliable, welcome customers to call and consult!