Experimental Researches of the Pulse Gas Barrier Face Seal

Gas Flow Simulation in the Working Gap of Impulse Gas-Barrier Face Seal

“…As a result, the flow of barrier gas through the face gap was studied. The studies included measurements of flow rate characteristics and pressure at key locations of the gap [2,4,5,6,7]. The results of the study of such seals can also be found in the works [17].…”

“…This occurs when the space size between the cameras is commensurate with the circumferential cameras length. However, as shown by recent experimental studies [2,4,5,16], the efficiency and the seal reliability can be significantly increased by changing the number of chambers and feeders, i.e. by changing the inter-chamber spaces [28,30,31,32].…”

“…Thus, in order to create more perfect seals, it is necessary to take into account the pressure unevenness factor in the circumferential direction, i.e. the pressure drop in the space between the chambers, when determining the pressure distribution in the seal gap [2,4,5,29]. In this article, we propose a method for determining the pressure distribution in the impulse seal gap, taking into account both the radial gas flow due to the difference between the sealing and atmospheric pressure, and the circumferential flow caused by the sealing surfaces relative rotation [36,37,38,39].…”

“…Finding the right side of equation 4W(x) = 6(1+1/κ) ∂(Uhp 1/κ )/∂x is quite a difficult task. However, it can be solved by successive iterations, substituting the value of the derivative ∂P/∂x found from (5) into the integral equation 7in the form:…”