Shenjia Hydraulics

Release Date:

2022-08-03

A high-pressure reactor is a type of reactor that operates under elevated pressure. 1. Depending on process requirements, high-pressure reactors are classified into two types: with agitators and without agitators. The former has a structure similar to that of conventional agitator equipment. To ensure resistance to high temperatures and corrosion, the reactor vessel is fabricated from stainless steel, while the outer shell is made of carbon steel or low-alloy steel; the stainless steel serves as the inner lining and may be directly produced as a composite plate or lined with a stainless-steel liner.

A high-pressure reactor is a reaction vessel designed to operate under elevated pressure. 1. Depending on process requirements, high-pressure reactors are classified into two types: with agitators and without agitators. The former has a structure similar to that of conventional agitator equipment. To ensure resistance to high temperatures and corrosion, the reactor vessel is fabricated from stainless steel, while the outer shell is made of carbon steel or low-alloy steel; the stainless steel serves as the inner lining and may be directly produced as a composite plate or lined with a stainless‑steel liner. 2. The reactor vessel typically features no openings; all piping, fittings, and auxiliary components are mounted on the vessel head. 3. The top of the vessel is equipped with a safety relief device, such as a safety valve, a rupture disc, or a combination of both.

Autoclave

　　Application of Autoclaves at Operational Sites in the Photovoltaic Industry

　　Equipment used in industrial processes to carry out analytical chemical reactions under high pressure. Some models are equipped with agitators or heat-transfer systems. It is also referred to as a “pressure vessel.” A high-pressure autoclave consists of a reaction vessel, an agitator, conventional control systems, a cooling system, safety‑related devices, and a heating furnace, among other components.

　　Autoclave Instructions, Structure, and Operating Principle

　　1. The vessel body and the lid are made of stainless steel; the vessel body and flange are joined by threaded connections, and the lid is a flat cover that attaches to the vessel via main distribution bolts and nuts. 2. The autoclave employs an A‑type double‑seal configuration for its primary sealing interface, while other sealing points utilize arc‑to‑flat or arc‑to‑arc line‑contact designs. These high‑precision, smooth‑finished seals ensure reliable performance and effective containment. 3. A silicon carbide heating element is mounted externally on the vessel; electrical leads pass through the element, with the housing’s side opening allowing connection to the lower port. Wiring is routed via terminal studs and rubber‑insulated cable sleeves to the controller. 4. The vessel lid is equipped with a pressure gauge, a rupture‑disc safety device, a vapor–liquid valve, and a temperature‑control sensor, enabling real-time monitoring of internal reaction conditions, adjustment of the medium ratio, and ensuring safe operation. 5. The coupling consists primarily of inner and outer magnetic rings with strong magnetic properties, with a bearing sleeve in the middle. The agitator is driven by a servo motor via this coupling, and agitation speed can be precisely controlled by regulating the servo motor’s speed internally. 6. A tachometer coil is installed at the upper portion of the sleeve; as the agitator and internal magnetic rings rotate, the coil generates a voltage proportional to the stirring speed. This electrical signal is transmitted to the vehicle’s tachometer, providing a visual indication of the stirring rate. 7. A cooling water jacket is positioned between the magnetic coupling and the vessel lid; when operating at elevated temperatures, cooling water must circulate to prevent demagnetization caused by excessive heat. 8. Bearings are either stainless steel or high‑strength electrochemical graphite, offering excellent resistance to friction and wear and requiring long maintenance intervals.

　　Using a high-pressure autoclave–based volumetric measurement device, a γ‑radiation source is placed inside the reactor, and two detectors—one positioned at the top and one at the bottom—are installed. The detectors are then connected to a signal‑processing unit and a control‑conversion module. By outputting a current signal proportional to the product of the counts from the upper and lower detectors, the system quantifies the material volume within the vessel. This apparatus addresses the challenge of online monitoring of reactor charge levels and continuous production under supercritical conditions. The shear‑recirculation system comprises a working‑pressure pump, an extrusion‑stirring pump, and a shear pump. The extrusion‑stirring pump consists of an inner tube, an outer tube, a main shaft, and stirring plates; the outer and inner tubes form a hollow jacket, while the main shaft is rigidly mounted to the inner tube via a support bracket.