title: ÐÐ¾Ð²ÑÑÐµÐ½Ð¸Ðµ Ð´Ð¾Ð»Ð³Ð¾Ð²ÐµÑÐ½Ð¾ÑÑÐ¸ ÐºÐ»Ð°Ð¿Ð°Ð½Ð½ÑÑ ÑÑÑÑÐ¾Ð¹ÑÑÐ²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Improving the durability of valve devices
Creators: name: Ð§ÑÐ½Ñ Ð¨ÑÐ½ÑÑÐ°Ð¾
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: ÐÐ»Ð°Ð¿Ð°Ð½Ñ
ÐÑÑÐ¶Ð¸Ð½Ñ
ÐÐ·Ð½Ð¾Ñ
Ð¿Ð¾ÑÐµÑÐ¸ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ
Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÑ
ÑÐºÐ¾ÑÐ¾ÑÑÑ Ð¿Ð¾ÑÐ¾ÐºÐ°
Ð´Ð¸Ð°Ð¼ÐµÑÑ ÑÐ°ÑÑÐ¸Ñ
ÑÐ³Ð¾Ð» ÑÐ´Ð°ÑÐ°
pressure loss
density
flow speed
particle diameter
impact angle

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«ÐÐ¾Ð²ÑÑÐµÐ½Ð¸Ðµ Ð´Ð¾Ð»Ð³Ð¾Ð²ÐµÑÐ½Ð¾ÑÑÐ¸ ÐºÐ»Ð°Ð¿Ð°Ð½Ð½ÑÑ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Â». ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: 1. ÐÐ·ÑÑÐ¸ÑÑ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð¸ ÑÐ°Ð±Ð¾ÑÐ¸Ðµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð¿ÑÐµÐ´Ð¾ÑÑÐ°Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÑ ÐºÐ»Ð°Ð¿Ð°Ð½Ð¾Ð² Ð¿ÑÑÐ¼Ð¾Ð³Ð¾ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ. 2. ÐÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÑ Ð¿Ð¾ÑÐµÑÐ¸ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ, Ð¶ÐµÑÑÐºÐ¾ÑÑÑ Ð¸ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ñ Ð¿ÑÑÐ¶Ð¸Ð½Ñ ÑÐ°ÑÐ¾Ð²ÑÑ Ð¿ÑÐµÐ´Ð¾ÑÑÐ°Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÑ ÐºÐ»Ð°Ð¿Ð°Ð½Ð¾Ð² Ð¿ÑÑÐ¼Ð¾Ð³Ð¾ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ð¿ÑÐ¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÑÑ. 3. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÑ ÑÐ°ÐºÑÐ¾ÑÑ, Ð²Ð»Ð¸ÑÑÑÐ¸Ðµ Ð½Ð° Ð¸Ð·Ð½Ð¾Ñ ÑÐ°Ð±Ð¾ÑÐ¸Ñ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐµÐ¹ ÐºÐ»Ð°Ð¿Ð°Ð½Ð°, Ð¾ÑÐµÐ½Ð¸ÑÑ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð¸ ÑÐºÐ¾ÑÐ¾ÑÑÐ¸ Ð¿Ð¾ÑÐ¾ÐºÐ°, Ð´Ð¸Ð°Ð¼ÐµÑÑÐ° Ð¸ ÑÐ³Ð»Ð° ÑÐ´Ð°ÑÐ° ÑÐ°ÑÑÐ¸Ñ Ð¾ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÑ ÐºÐ»Ð°Ð¿Ð°Ð½Ð°. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð°Ð½Ð°Ð»Ð¸Ð·Ð°: (1) ÐÐµÑÐµÐ¿Ð°Ð´ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð² ÐºÐ»Ð°Ð¿Ð°Ð½Ðµ ÑÐ²ÐµÐ»Ð¸ÑÐ¸Ð²Ð°ÐµÑÑÑ, ÑÑÐ¾ Ð¿ÑÐ¸Ð²Ð¾Ð´Ð¸Ñ Ðº ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ñ Ð¼Ð°ÐºÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÐ¸Ð»Ñ ÑÐ¶Ð°ÑÐ¸Ñ Ð¿ÑÑÐ¶Ð¸Ð½Ñ Fmax; (2) ÐÐµÑÑÐºÐ¾ÑÑÑ Ð¿ÑÑÐ¶Ð¸Ð½Ñ ÑÐ¼ÐµÐ½ÑÑÐ°ÐµÑÑÑ Ñ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸ÐµÐ¼ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐ¸; (3) ÐÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ñ Ð¿ÑÑÐ¶Ð¸Ð½Ñ ÑÐ²ÐµÐ»Ð¸ÑÐ¸Ð²Ð°ÐµÑÑÑ Ñ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸ÐµÐ¼ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐ¸; (4)Â ÐÐ¾Ð³Ð´Ð° Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÑ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐ¸ Ð¼ÐµÐ½ÑÑÐµ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÐ¸ ÑÐ°ÑÑÐ¸Ñ, Ð¸Ð·Ð½Ð¾Ñ ÑÐ²ÐµÐ»Ð¸ÑÐ¸Ð²Ð°ÐµÑÑÑ Ð¿Ð¾ Ð¼ÐµÑÐµ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ñ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐ¸ Ð¸ Ð½Ð°Ð¾Ð±Ð¾ÑÐ¾Ñ;Â (5)Â ÐÐ·Ð½Ð¾Ñ ÑÐ¼ÐµÐ½ÑÑÐ°ÐµÑÑÑ Ñ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸ÐµÐ¼ Ð´Ð¸Ð°Ð¼ÐµÑÑÐ° ÑÐ°ÑÑÐ¸Ñ; (6)Â ÐÑÐ¸ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ð¸ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÐ³Ð»Ð° Ð¾Ñ 0Â° Ð´Ð¾ 40Â°Ð³ÑÐ°Ð´ÑÑÐ¾Ð² Ð¸Ð·Ð½Ð¾Ñ ÑÐµÐ·ÐºÐ¾ Ð²Ð¾Ð·ÑÐ°ÑÑÐ°ÐµÑ; Ð¾Ñ 40Â° Ð´Ð¾ 90Â°Ð³ÑÐ°Ð´ÑÑÐ¾Ð² Ð¸Ð·Ð½Ð¾Ñ Ð¼ÐµÐ´Ð»ÐµÐ½Ð½Ð¾ ÑÐ¼ÐµÐ½ÑÑÐ°ÐµÑÑÑ.
description: The theme of the final qualification work: "Improving the durability of valve devices". Tasks that were solved in the course of the study: 1. To study the design and performance of direct-acting safety valves. 2. Determine the pressure loss, stiffness and spring deflection of direct acting ball safety valves at various densities. 3. Investigate the factors influencing the wear of the valve working surfaces, evaluate the influence of the flow density and velocity, the diameter and angle of particle impact on the valve surface. Analysis results: 1. The pressure drop in the valve increases, which leads to an increase in the maximum compression force of the FmaxÂ spring; 2. Spring stiffness decreases with increasing fluid density; 3. Spring deformation increases with increasing fluid density; 4. When the density of the liquid is less than the density of the particles, the wear increases as the density of the liquid increases; when the density of the liquid is greater than the density of the particles, the opposite is true; 5. Wear decreases with increasing particle diameter; 6. When the angle value increases from 0Â° to 40Â°degrees, wear increases sharply; from 40Â° to 90Â° degrees, wear decreases slowly.