The rotating joint the development process and history, design the update

1933 years ago, the post-cooling water or steam medium rotation HongGang is usually used packing gland to seal, the facts prove the efficiency is not high. These sealing material wears, the more the medium leaking badly. In August 1933, Monroe and Goff and a local factory joint, design and manufacture the first keg up the ring slip Johnson. It has solved the problem of packing gland, adopted a more economical way to let water or steam access to HongGang. Spring type mechanical seal effectively prevents the liquid or gas medium leakage. The mechanical joint rotating seal of the key lies in the ring.

It allows the joint parts with rotating equipment, and offers a watertight seals let a liquid or gas into the cylinder. In the 1930 s to the s, through the Mercury Slip Rings cylinder to the ventilation with a liquid or gas a preferred way, however, there are some problems with the joint installation. The second world war ii ended, many innovative application in joint design, one of which is to use metal hose, this makes the sealing ring joint with wear mobile is more agile. In 1946, in the original foundation increased the size, to better meet the needs of various industries with rotating joint. In 1954, a new design was underway, main is to reduce the appearance of joint size to better adapt to special needs, to 1957, in an industry also care about how to improve the efficiency of the cylinder block heating and cooling. Ire began planning to study various put Johnson siphon device (rotary and fixed) efficiency, and HongGang from inside to outside heat transfer efficiency of different siphon clearance. In the United States, in 1959, pentacle, Florida, key Johnson company put a 1.5 x 6.35 metres (60 "x 250") paper machine HongGang converted into a company HongGang test, the main test various rotary joints and siphon device. In the United States in 1962 SanHeShi Michigan founded the r&d center, 1963 for the first time key Johnson recorded rotary joints rotate in napping pm3 &pm4 operation.

The design and operation of the rotating HongGang people, can learn a lot from the video of steam condensate rate of knowledge. In the industry, revolving joint and many of the siphon technique to share in the industry. Through the 50 s and 60 s, researchers continue to develop new designed to meet the needs of many industrial application. Higher temperature and speed requirements, the requirements of the rotating joint design further optimization. Such as quick change outer pipe, pressure compensator, large size joints, joint service life extension. In the 1960 s and early 70 s, all kinds of new sealing material to the test, such as plastic, Teflon, ceramic. Today, there are millions of rotary joints: from supporting type or the supporting type; Single and Double general general; applicable medium has steam, heat conduction oil, water, cooling water, air and some special heat transfer liquid. From a very low temperature to be as much as 482 C (900 F); Speed from 1 to 50000 turn/turn/points.