Taike valve hydraulic control valve uses the medium pressure of the pipeline itself as the power source for opening and closing and adjustment. The pilot valve and the small system pipeline can be combined to have nearly 30 functions. Now it is gradually being used more commonly.
The pilot valve of Taike valve acts on the change of the water level and pressure as the control object. Because there are many types of pilot valves, they can be used alone or in a combination of several, so that the main valve can be used to control the water level, water pressure and flow rate. Compound adjustment function. However, the main valve is similar to a stop valve. When the valve is fully opened, its pressure loss is much greater than that of other valves, and the closer the opening loss coefficient is to the fully closed, the sharper the increase, and the larger the valve diameter, the more significant it is.
The valve with the above characteristics will accelerate the action of the valve disc when it is close to fully closed, which is prone to water hammer (water impact pressure). When it is close to fully closed, the slower the valve action, the better, so a throttle can be set on the valve disc. mechanism. In addition, the throttling and action parts of the pilot valve should be avoided as far as possible to set up extra-small diameter orifices to avoid blockage. If necessary, filter screens should be added, regular maintenance and bypass pipelines should be installed. The development and use prospects of this kind of valve are promising.
The hydraulic control valve is a valve for water pressure control. It consists of a main valve and its attached conduit, pilot valve, needle valve, ball valve and pressure gauge.
When using a hydraulic control valve, you must first pay attention to the selection. Improper selection will cause water blocking and air leakage. When selecting a hydraulic control valve, you must multiply the equipment’s hourly steam consumption by 2-3 times the selection ratio as the maximum condensate volume to select the water discharge of the hydraulic control valve. In order to ensure that the hydraulic control valve can discharge the condensed water as soon as possible when driving, and quickly increase the temperature of the heating equipment. Insufficient discharge energy of the hydraulic control valve will cause the condensate to not be discharged in time and reduce the thermal efficiency of the heating equipment.
When selecting a hydraulic control valve, the nominal pressure cannot be used to select the hydraulic control valve, because the nominal pressure can only indicate the pressure level of the hydraulic control valve body shell, and the nominal pressure of the hydraulic control valve is very different from the working pressure. Therefore, the displacement of the hydraulic control valve should be selected according to the working pressure difference. The working pressure difference refers to the difference between the working pressure before the hydraulic control valve minus the back pressure at the outlet of the hydraulic control valve.
Post time: Aug-09-2021