What does the auxiliary equipment for mechanical seals include?

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The auxiliary equipment for mechanical seals is a general term for many components. It consists of a filter, a hydrocyclone, a flow-limiting orifice plate, a cooler, a pressure tank, a pressure boosting tank, various monitoring instruments, pipelines, and fittings. In practical work, one or several can be used, selected according to specific conditions. Through methods such as flushing, cooling, filtering, and separation, it is possible to lubricate and cool or regulate the temperature of mechanical seals, as well as to flush, purify, dilute, and remove leaking fluids, thereby improving the operating conditions of the seals. The most important working method among all auxiliary facilities is flushing. The so-called flushing involves injecting a sealing fluid into the sealing chamber to perform functions such as lubrication, cooling, and purification, thereby changing the unfavorable environment into one that is suitable for sealing. There are many types of flushing, which can be classified into self-flushing, circulating flushing, and injection flushing based on the flushing method and the sealing fluid used. Self-flushing utilizes the pressure difference generated by the pump itself or by a pumping device within the sealed chamber to allow the medium being sealed to flow through this chamber, thus enabling flushing. Circulating flushing involves using a device that creates a pressure difference (such as a pumping ring) to circulate an external sealing fluid (sometimes referred to as a isolation fluid), thereby achieving the purpose of flushing. Injection flushing is a method used when the medium being sealed cannot be used as a sealing fluid; in this case, another liquid is injected into the sealed chamber from the outside to improve the conditions for sealing. Temperature control systems: Use fluids at appropriate temperatures to cool or insulate (or heat) the sealed chamber, the static ring, and other components, thereby improving sealing stability and extending their service life. These facilities do not come into contact (or mix) with the sealed fluid. It should be noted that the flushing system also has the function of temperature regulation, allowing for direct cooling of the seals. Filtering and separation: During flushing, filters and hydrocyclones are used to remove impurities from the sealing fluid, thereby ensuring that the sealing surfaces are not damaged. In addition to the above, auxiliary facilities include heat exchangers, orifice plates, pressure storage tanks, and instruments used to achieve the aforementioned functions; all of these together constitute the sealing system.