Gas Generator Level Sensor Application Solution

We often use gas in our daily life, so how much do you know about gas generators? Gas generators are widely used for natural gas, oilfield mixed gas, coal gas and other combustible gases. Gas generator sets are new generator sets developed to meet the global environmental protection requirements and new market conditions. Its market prospects are very broad. Next, let's take a look at what gas generators are and the role of liquid level sensors in gas generators.

Gas generator is a new type of highly efficient new energy generator that uses liquefied gas, natural gas and other combustible gases as combustion materials, replacing gasoline and diesel as engine power. Gas generator has the advantages of wide output power range, high reliability in starting and operation, good power generation quality, light weight, small size, simple maintenance, and low low-frequency noise.

How Gas Generators Work

The engine and the generator are coaxially connected and placed on the chassis of the whole machine. The muffler and the speed regulator are then connected to the engine. The gas source is passed into the gas channel in the engine, connected to the recoil starter with a pull rope on the engine and the voltage regulator connected to the output end of the generator. The combustible gas stored in the gas source is natural gas, liquefied petroleum gas, or biogas. Compared with gasoline generators and diesel generators, the use of gas generator sets reduces environmental pollution and is an environmentally friendly and energy-saving generator. It has a simple structure, is safe and reliable to use, and has stable output voltage and frequency.

The filter device is used to protect the valve of the gas pipeline, and the aperture of the filter should not be greater than 1.5MM. The gas pressure stabilizing filter device is the main and key equipment in the gas transmission and distribution process. It mainly undertakes the functions of pressure regulation and stabilization, and also undertakes one or more functions such as filtering, metering, odorization, and gas distribution.

The fluctuation of the outlet pressure of the pressure regulating valve should not exceed ±5% within the entire combustion adjustment range. If the gas valve group is equipped with an independent pressure regulating valve, an independent filter device should be configured at the front end of the air inlet to avoid clogging the air pipe in the pressure regulating valve. I believe that through the above introduction, everyone has a certain understanding of gas generators. Next, the editor of Gongcai.com will continue to learn about the role of liquid level sensors in gas generators.

At present, domestic natural gas power plants mainly operate in a gas-steam cycle, using the high-temperature flue gas generated by the combustion of natural gas to do work in the gas turbine, converting part of the thermal energy into high-quality electricity, and then using the waste heat in the gas turbine exhaust to generate steam in the waste heat boiler to drive the steam turbine to further generate electricity, while providing heating and cooling. While improving electrical efficiency, it achieves efficient cascade utilization of energy and reduces the cost of natural gas heating.

Everyone knows that gas generators will generate heat during long-term operation. This is certain. The role of the water tank is to cool down. If the heat cannot be reduced, the generator will be damaged. So how to monitor the water level in the water tank? You can get a general idea of ​​the principle through the following two articles: "How to use sensors to achieve water shortage protection? How about photoelectric liquid level sensors?", "How is the water level in the water tank controlled? How to choose a suitable sensor?"

In order to better monitor the water level of the gas generator water tank, Gongcai.com recommends the British SST photoelectric liquid level sensor/photoelectric liquid level switch - LLC200D3SH. The function of the photoelectric liquid level sensor is to detect the change of the liquid level at the location of the sensor. If you want to achieve the water shortage protection function, such as water shortage and power failure. You need to install the sensor at the bottom of the container to continuously detect the change of the minimum liquid level. When there is no liquid in the container, the sensor will give a signal to cut off the power, and the equipment will stop working to prevent dry burning.

UK SST Photoelectric Liquid Level Sensor/Photoelectric Liquid Level Switch - LLC200D3SH provides single-point liquid level detection and TTL-compatible push-pull output. The designed sensor contains an infrared emitter and a detector, which are precisely installed to ensure good optical coupling between the two in the air. When the conical end of the sensor is immersed in the liquid, the infrared light will be transmitted through the conical surface, and the light intensity reaching the detector will become weaker. On the other hand, the LLC series photoelectric liquid level sensor (industrial grade, photoelectric water immersion sensor) is designed for industrial applications. It can cope with heavy-load environments in industrial applications. This series of products is suitable for a wide voltage range power supply environment, and the drive current can reach 250mA. Therefore, this series of sensors can directly drive alarms and other equipment.