Thermal power flue gas waste heat recovery project DN17500mm RPP packing grid

A Jilin customer has customized a batch of packing grids for the thermal power flue gas waste heat recovery project, with a diameter of 17.5 meters and RPP material, for use in the third phase unit of the thermal power company's flue gas waste heat recovery project. The grids are made in blocks to ensure installation from the manhole entrance. The packing grids are made of reinforced polypropylene material, with a plate thickness of 10mm and a spacing of 300-400mm. The connecting plates are made by cross welding.

1. Packing grid effect:

a、 Prevent the filler from passing through the filler pressure grid layer and blowing upwards to create displacement, thus playing a fixing role;

b、 The weight of the packing bed is fixed under operating conditions;

C、 Having sufficient free area to allow the gas-liquid vehicle phase to pass freely.

Packing compression device and its function:Thermal power flue gas waste heat recovery project DN17500mm RPP packing gridIt is a device that allows the packing pressure plate to be freely placed on the top of the packing layer and compresses the packing by its own weight. For the convenience of installation and maintenance, the packing compression device cannot be continuously fixed to the tower wall. For small towers, screws can be used to fix them to the tower wall, while for large towers, ears can be used to fix them.

Product actual photos:

2. Classification of packing compression devices:Thermal power flue gas waste heat recovery project DN17500mm RPP packing gridIt is divided into two categories: packing pressure plates and bed restriction plates, each with different types. Packing pressure plate is suitable for bulk packing materials made of ceramics, graphite, etc. that undergo crushing.

Product detail pictures:

3Packing pressure grid for thermoelectric flue gas waste heat recovery projectWhy should the free cross-sectional area of the packing compression device be greater than 70%?

Thermal power flue gas waste heat recovery project DN17500mm RPP packing pressure gridIn the design, to prevent excessive pressure drop or even liquid flooding at the packing compression device, it is required that the free cross-sectional area of the packing compression device should be greater than 70%.

Its function is to prevent relative movement of the packing during high gas velocity (high pressure drop) and sudden load fluctuations, thereby avoiding packing loosening and damage. Due to the fragility of the packing, when debris accumulates in the gaps of the bed packing, causing a decrease in the porosity of the packing layer, the packing pressure plate can fall down with the packing layer, tightly pressing on the packing without loosening it, reducing the production capacity and separation efficiency of the packing tower.

Product image:

4Thermal power flue gas waste heat recovery project DN17500mm RPP packing pressure gridPacking compression device and function: The PP material packing support for the internal components of the air tower in the thermal power plant is used to support the packing ring of the flue gas tower. The support grid plate is a device that allows the packing pressure plate to be freely placed on the upper end of the packing layer and compresses the packing by its own weight. For the convenience of installation and maintenance, the packing compression device cannot be continuously fixed to the tower wall. For small towers, screws can be used to fix them to the tower wall, while for large towers, ears can be used to fix them.

Product physical picture:

Dier Chemical Packing Co., Ltd. was established in 2004 in Pingxiang City, Jiangxi Province. It has strong technical strength, efficient and sophisticated automated production equipment, strict quality assurance system, and designs and produces 18 series and more than 100 types of products including chemical, environmentally friendly and green separation internals, metal, plastic, ceramic filling materials, and chemical tower equipment; We have signed long-term partnerships with Tianjin University, East China University of Science and Technology, and the Institute of Chemical Engineering at Zhejiang University of Technology. We have technical team offices in Tianjin and Hangzhou, providing strong technical support for the company's product quality, tower separation design, production, and new product development.