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Metal compensator
Metal compensator
The metal compensator is used to compensate the displacement of the pipe due to thermal expansion on the flue duct, and is generally used for hot air ducts with external thermal insulation structures. The metal expansion joint is composed of several corrugated joints, and the material of the corrugated joints is generally stainless steel. The metal compensator should generally be pre-stretched before installation.
Fan inlet control valve
Fan inlet control valve
This kind of regulating valve is a valve dedicated to the inlet of the fan and used to adjust the air volume at the inlet of the fan. The regulating valve is a fan-shaped rotating blade regulating valve, which causes the passing wind to rotate through the regulating valve, which is consistent with the direction of rotation of the fan blades. The fan inlet regulating valve can be equipped with a manual actuator or a pneumatic actuator.
Explosion-proof door
Explosion-proof door
The explosion-proof door installed on the wall of the heating furnace shell is a safety valve to ensure the safe operation of the heating furnace. When the operating pressure of the heating furnace exceeds the design value, the explosion-proof door will automatically open to release the furnace pressure and ensure the safety of the heating furnace. The explosion-proof door is generally made of gray cast iron, which is manufactured by static casting process, and the door cover is equipped with heat insulation material.
Watch the fire gate
Watch the fire gate
The fire-watching door installed on the wall of the heating furnace shell is used to manually open and observe whether the flame of the burner in the heating furnace is normal. The fire door is generally made of gray cast iron, which is manufactured through a static casting process.
Bottom-opening pneumatic quick-opening damper
Bottom-opening pneumatic quick-opening damper
This is a quick-opening damper installed at the bottom of the hot air duct. It uses a pneumatic actuator to advance and retract the door cover through a long-stroke pneumatic actuator to close and open the damper. This kind of damper is simple in structure and reliable in use, and is a commonly used quick-open damper.
Pneumatic quick opening damper
Pneumatic quick opening damper
Our company designs and produces quick-opening dampers of various forms and specifications. The petrochemical industry is generally equipped with pneumatic actuators. The quick-opening dampers are normally closed and interlocked to open quickly when the system fails. Generally, the quick-opening time is less than 5S. The pneumatic quick-opening damper is a side-opening type, with a manual opening door, installed on the side of the hot air duct.
Large flue baffle
Large flue baffle
With the expansion of petrochemical plants, the specifications of flue baffles have become larger and larger. Our company has actively improved and perfected the design and manufacture of large flue baffles, and has many application achievements. The board has significant advantages.
Pneumatic rectangular flue baffle
Pneumatic rectangular flue baffle
The flue baffle is a valve installed on the flue duct of the heating furnace for switching or adjusting functions. The flue baffle is complete with an actuator, generally a pneumatic actuator or an electric actuator.
Sealed double baffle
Sealed double baffle
The sealed air double baffle is a kind of baffle or butterfly valve that can achieve 100% isolation. The main structural feature is that the valve plate is a double-layer structure. The cavity in the middle of the double-layer valve plate enters the sealing air, and the pressure of the sealing air is higher than that of the pipeline. The internal medium pressure is used to achieve full sealing.
Casting valve plate flue butterfly valve
Casting valve plate flue butterfly valve
The cast valve plate flue butterfly valve is a special flue butterfly valve. The valve plate is cast in one piece. The material is generally ductile iron or stainless steel. Due to the three-dimensional structure of the butterfly valve, it has strong resistance to deformation, high temperature and corrosion, so , This kind of butterfly valve is suitable for the top flue of heating furnace. The sealing surface is machined and matched to ensure high sealing performance and long-term operation without jamming.

Air preheater

The cast iron plate air preheater is the first to be developed by our company and has been successfully applied on a large scale. It has excellent acid and dew point corrosion resistance and has a service life of more than 10 years. It is the current mainstream form of air preheater.
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The cast iron plate air preheater is developed by our company in cooperation with Sinopec Corporation SINOPEC and Luoyang Engineering Company LPEC. The patented technology fills the domestic gap. It has good acid and dew point corrosion resistance, greatly reduces the exhaust gas temperature, and significantly improves the waste heat recovery efficiency. Extend the operating cycle. The actual service life of the air preheater can reach more than 10 years, and the economic benefits are very significant. After years of technological development and practical application, the technology of cast iron plate air preheater is becoming more and more perfect. It is currently the mainstream form of air preheater and the preferred form of air preheater in major petrochemical refineries. Our company's cast iron plate air preheater products have a market share of more than 80%.

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air preheater
Sinopec Corporation
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Jiangsu Hengxiang Petrochemical Engineering Co., Ltd. 苏ICP备11055582号-2 中企动力 常州