Portable constant velocity fly ash sampler for regular coal powder sampling on the air and coal powder pipeline

The portable constant velocity fly ash sampler produced by Lianyungang Lingdong Electromechanical Equipment Co., Ltd., also known as the fly ash constant velocity sampler or the swirling fly ash constant velocity sampler, is used for regular coal powder sampling on the secondary air coal powder pipeline in the direct blowing powder production system. Due to equipment wear and changes in coal types, the fineness of coal powder will undergo significant changes, which will affect the economic operation of the boiler. Therefore, based on the results of regular sampling and measurement of coal powder fineness, it is used as a basis for timely use of the folding door opening of the entire separator and damage to equipment comonents. This production uses compressed air blowing and suction sampling with an air extractor to avoid the occurrence of sampling port blockage and make sampling easy. The sampling speed is controlled by controlling the compressed air pressure. This can obtain a more accurate value of coal powder fineness- There are 4-8 coal pipes installed at the outlet of the separator of the general speed coal mill, which directly lead to the burner. The difference in coal powder fineness between each coal powder pipe is significant. For example, sampling coal powder separately from each coal powder pipe would require too much work, as the distribution of coal powder fineness in each coal powder pipe is relatively fixed and there exists a conversion relationship. By calibrating the coal powder samples taken through sampling devices installed on 1-2 coal powder pipelines, a more accurate coal powder fineness value can be calculated through conversion relationships.

The sampling method for carbon content in fly ash using portable constant velocity fly ash samplers is basically based on the analysis of impact type fly ash samplers; Alternatively, fall sampling can be used. Due to the lack of scientific methods, it is difficult to obtain true and consistent samples of fly ash composition. This poses difficulties in accurately measuring the carbon content of fly ash. In response to these issues, our company has developed a type of fly ash sampler, a constant velocity fly ash sampler, and a swirl type fly ash constant velocity sampler for continuous sampling of flue gas fly ash at the tail of power plant boilers. This enables accurate measurement of carbon content in fly ash and provides reliable basis for scientific calculation of boiler heat rate. The sampling is true and reliable, and it is a fly ash sampling equipment developed by Lianyungang Lingdong Electromechanical Equipment Co., Ltd.

Technical parameters of portable constant velocity fly ash sampler:

Specification and model

Working pressure MPa

Sampler gun length (mm)

Blowing tube length (mm)

material quality

BFH-600

0.1-0.5

six hundred

four hundred

Stainless steel 304

BFH-800

0.1-0.5

eight hundred

six hundred

BFH-1000

0.1-0.5

one thousand

eight hundred

BFH-2000

0.1-0.5

two thousand

one thousand and five hundred

Portable constant velocity fly ash sampler - special specifications can be customized according to customer requirements, with an estimated customization period of 7-15 days.

Working principle of portable constant velocity fly ash sampler:

The portable constant velocity fly ash sampler is developed using the principles of negative pressure suction and cyclone separation to extract fly ash from the flue and perform solid and gas separation. Please provide an explanation in conjunction with the fly ash sampling process.

During the fly ash sampling process, all valves are in an open state. When compressed air is sprayed out from the outlet pipe, its jet action causes negative pressure at the pipeline connected to the sampling valve, and the gas inside the pipeline is carried out. The separator and its bottom powder collection bottle are closed connections, and only the sampling head and sampling tube can be connected to the outside. So the emergence of negative pressure causes the fly ash in the flue to enter the sampling device along the sampling head. The fly ash is separated in the separator and enters the powder collection bottle, while the gas and a small amount of fine powder are carried out by compressed air through the outlet pipe at the upper outlet of the separator and sent into the flue, without causing pollution to the workplace.

The function of adding a blowing valve is to close the blowing valve after sampling the fly ash, and then open the sampling valve to blow away the remaining fly ash in the sampling pipe, in order to prevent the sampling pipe from being blocked by fly ash. And ensure accurate sampling.

The purpose of fly ash sampler

The purpose and function of the fly ash sampler produced by Lianyungang Lingdong Electromechanical Equipment Co., Ltd. is that the carbon content of boiler fly ash is an important indicator reflecting the combustion rate of coal-fired boilers in thermal power plants.

fly ash sampler

The fly ash sampler is a device used for sampling fly ash from the tail gas of boilers in thermal power plants, providing a safe and reliable scientific basis for measuring boiler combustion losses in power plants. The fly ash sampler has been used in household appliance factories, but it is not. This device is easy to operate, has a short sampling time, and can meet user requirements to the greatest extent.

Installation and working engineering of coal powder sampler

The installation and operation of the coal powder sampler and mobile coal powder sampler of Lianyungang Lingdong Electromechanical Equipment Co., Ltd. drill holes on the flue, extend the sampling tube into the flue, and make the sampling head face the direction of the incoming smoke flow.

Self regulating liquid level control device for gas-liquid two-phase flow

The self regulating liquid level control device for gas-liquid two-phase flow is based on the principle of gas-liquid two-phase flow. The two-phase flow drainage controller is suitable for liquid level control of various heat exchangers and expanders in enterprises such as power, chemical, petroleum, and metallurgy. It is a replacement of the drainage regulator.

coal powder sampler

The design of the coal powder sampler adopts compressed air blowing and suction sampling with an air extractor. The sampling speed is controlled by controlling the compressed air pressure and flow rate. The design of the coal powder sampler adopts compressed air blowing and suction sampling with an air extractor, which avoids the problem of clogging of the sampling port and is easy to sample.

Replacing pipes for marine oil coolers

Welded steel pipes (also known as slotted pipes and welded pipes) are mainly used for auxiliary machinery in industries such as thermal power generation, chemical industry, and steel, such as condenser and heater pipe replacement, tubular marine oil cooler pipe replacement, oil-water cooler pipe replacement, tubular marine oil cooler pipe replacement, and Le tube cooler pipe replacement.

drain flash tank

A drainage expansion vessel is a type of vessel that expands and depressurizes the drainage of the pressure drainage pipeline, separates steam and drainage, and introduces steam into a heat exchanger or deaerator. The drainage expansion vessel consists of two 16m rectangular containers, with the other mainly accepting high-pressure heater emergency drainage and deaerator overflow drainage.

Titanium tube for tube replacement

Replacing tubes with titanium tubes is lightweight, high in strength, and mechanically more efficient. Titanium tubes for tube exchange are used in heat exchange equipment, such as tubular heat exchangers, coil heat exchangers, serpentine heat exchangers, condensers, condensers, oil coolers, chillers, evaporators, and conveying pipelines.

regular discharge expansion vessel, regular discharge expansion device

regular blow down expansion tank, which involves expanding and cooling the internal volume of the periodic blow down expansion tank to separate secondary steam. So utilizing secondary steam and waste hot water as heat can recover some of the heat lost from boiler discharge and improve boiler efficiency.

Various forms of coal powder samplers

The use of carbon steel material in coal powder samplers has caused many problems, and some manufacturers still encounter these problems when using coal powder samplers. So it is recommended to use stainless steel material at least ---.

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