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              Fly Ash Sampler-Fly coal ash sampling device

              Fly Ash Sampler-Fly coal  ash sampling device-best price best quality best service 

               

               

              I. Profile

              Fly ash sampler is used for continuous sampling of flue gas and fly ash at the tail of power plant (station) boilers, which can accurately detect carbon content in fly ash and provide reliable basis for scientific calculation of thermal efficiency of boilers. Fly ash sampler is a new generation of advanced equipment for fly ash sampling.

              The device is different from the same type of domestic products in that the pressure regulating valve is installed after the compressed air valve. Regulate the pressure regulating valve to control the pressure of compressed air to achieve isokinetic sampling (pressure is 0.4-0.6 Mpa), sampling is representative. The pressure of compressed air provided by general power plants is about 6-8 kg.

               Fly Ash Sampler-Fly coal  ash sampling device-best price best quality best service

               

               

              II. Structural Forms

              Fixed fly ash sampling device mainly consists of the following parts:

              (1) Sampling pipe - --- Insert into the flue pipe, the sampling port is directed towards the fly ash flow, from which fly ash enters the sampling device. it is multi-point sampling. 

              (2) Separator - Separate fly ash from gas. Fly ash is thrown down by rotating airflow due to gravity, and then falls into the collector by gravity. The separated gas is rotated from top to bottom along the wall, then rises to the top along the middle route, and is separated twice by the lower blade of the exhaust pipe, and discharged from the top outlet to realize the separation of fly ash and gas. 

              (3) Sampling bottle - centralized storage of fly ash samples separated from the separator for calibration purposes only.

              (4) Sampling valve - --- When sampling, open the valve, suck the air in the separator by the negative pressure formed by the exhaust of compressed air from the outlet, and make the fly ash in the fly ash pipeline enter the sampling device from the sampling port for sampling.

              (5) Purge valve - Open the sampling valve to close the purge valve and use compressed air to purge the sampling tube when it is necessary to clean the residual fly ash in the sampling tube.

              (6) Pressure regulating valve - --- adjust the opening of the valve to control the pressure and flow of compressed air and change the sampling speed of the sampling device.

              7. Pressure gauge - --- provides intuitive basis for the operation of pressure regulating valve.

                Fly Ash Sampler-Fly coal  ash sampling device-best price best quality best service

              III. Working principle

              Fly ash sampling device is developed by using the principle of negative pressure suction and cyclone separation to suck fly ash out of flue and separate solid and gas. In the process of sampling, all valves are open. When compressed air is ejected from the outlet pipe, its jet action will inevitably lead to negative pressure at the pipeline connected with the sampling valve, and the gas in the pipeline will be taken out. The separator and the powder collecting bottle at the bottom of the separator is blinded, and the only inlet that can be connected with the outside only uses the sampling head and the sampling tube. Therefore, the emergence of negative pressure prompts 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 collecting bottle. The gas and a little fine powder from the upper outlet of the separator are taken out by compressed air through the outlet pipe, and re-sent to the flue, which does not pollute the workplace.

              Therefore, the emergence of negative pressure prompts fly ash in flue to enter the sampling device along the sampling head. The purpose of adding a purge valve is to close the purge valve before and after the fly ash sampling, open the sampling valve and purge the residual fly ash in the sampling tube so as to prevent the sampling tube from being blocked by fly ash and ensure the sampling is correct.

               Fly Ash Sampler-Fly coal  ash sampling device-best price best quality best serviceFly Ash Sampler-Fly coal  ash sampling device-best price best quality best service

              IV. Model: FH-XXX 

              Model explain: FH: Fly ash sampling device. XXX:diameter of flue pipe  

               

              Fly Ash Sampler-Fly coal  ash sampling device-best price best quality best service

              Fly Ash Sampler-Fly coal  ash sampling device-best price best quality best service

               

               

               

               

               

               

               

               

               

               

               

               

               

               

               

               

               

               




              V. 
              Installation instructions

              1. Drilholes in the flue, inserting the sampling tube into the flue, and orienting the sampling head towards the flue gas inflow direction.

              2. Weld the sealing flange to the flue and ensure the sealing with the sampling tube.

              3. The device is usually installed in the flue of air preheater. If the width of flue is larger than 2 m, two samplers should be installed symmetrically in the flue. If the width is less than 2 m, only one sampler should be installed.

              4. Arrows on the exhauster and at the bottom of the regulating valve must be same as the direction of airflow when install it, otherwise the sampling effect will not be achieved.

              Fly Ash Sampler-Fly coal  ash sampling device-best price best quality best serviceFly Ash Sampler-Fly coal  ash sampling device-best price best quality best service


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