What is the correct method for cleaning debris with SMC solenoid valves?
Dust is suitable for brush strokes and compressed air blowing. The dirt between the trapezoidal screw and the teeth is suitable for wiping with a cloth; The oil stains on the valve and residual stains on the medium are suitable for steam cleaning, and then brushed with copper wire until the machined surface and mating surface show metallic luster, and the paint surface shows the original color of the paint. The drainage valve is responsible for at least one inspection by each team, regularly opening the flushing valve and the plug at the bottom of the drainage valve for cleaning, or regularly disassembling and cleaning to prevent dirt from blocking the valve.
The cleaning of SMC solenoid valve surface, trapezoidal screws of valve stem and stem nut, sliding parts of valve stem nut and bracket, gears, worm and other components are prone to accumulate dust, oil stains, medium residues, causing wear and corrosion of the valve. Therefore, it is very important to keep the exterior and moving parts of the valve clean and protect the integrity of the valve coating.
The oil stains and residual medium stains on SMC solenoid valves are suitable for steam cleaning and copper wire brushing until the machined surface and mating surface have a metallic luster, and the paint surface has the original color of the paint. The drain valve should be responsible for at least one inspection of each type. Regularly open the flushing valve and the plug at the bottom of the drain valve for flushing, or regularly clean and clean the valve to remove dirt. Clean the valve surface, trapezoidal screws on the valve stem and nut, sliding parts of the valve nut and bracket, as well as gears, screws, and other components. Therefore, it is very important to keep the exterior and moving parts of the valve clean and protect the integrity of the valve coating.
The operating torque of SMC solenoid valve varies depending on the opening degree and valve opening and closing direction. In horizontal butterfly valves, especially large-diameter valves, the torque caused by water depth, valve shaft, and sewer head difference cannot be ignored. In addition, for the elbow of the valve inlet side device, a bias is formed and the torque is increased. When the valve is in the middle opening, the operating mechanism needs to be self-locking due to the action of water flow torque. Analyzed the investigation and testing data of the operation of the rubber flap check valve, and ruled out the possibility of steam water co distillation. Major overload and full water accident.
SMC solenoid valve indeed inspected the steam water separator on the upper part of the boiler drum, and one of them was only positioned through spot welding when welded to the drum during boiler production. The welder forgot to weld and died. Saturated steam short circuits into the human superheater through the surrounding gaps, without exerting the separation effect of steam and water. Saturated steam brings boiler water into the superheater, causing the water to evaporate and impurities to deposit in the superheater tubes, blocking them. After repairing and welding, the superheater works normally.
SMC solenoid valve adopts worm gear and worm drive, and the cam rotates to press or release the contact on the signal device at the predetermined position, and outputs corresponding "on" and "off" electrical signals to display the opening and closing status of the butterfly valve. Groove butterfly valves are used for controlling solid materials and are often used as discharge valves at the bottom of tanks, such as cement tanks, stone powder tanks, etc., to discharge and quickly cut off materials. Because most dust materials contain particles of varying sizes, there is no doubt that they will cause wear on the valve sealing surface. Improper selection can greatly reduce the lifespan of the valve or quickly cause internal leakage, which will continue to affect the valve.
The butterfly plate of SMC solenoid valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis at an angle between 0 ° and 90 °. When it rotates to 90 °, the valve is fully open. This valve is generally installed horizontally. The groove butterfly valve, as a flow control, mainly relies on the correct selection of valve size and type. The structural principle of butterfly valves is particularly suitable for making large-diameter valves. Butterfly valves are not only widely used in general industries such as petroleum, gas, chemical, and water treatment, but also in the cooling water system of thermal power plants.
SMC solenoid valve has a simple structure, small size, and light weight, consisting of only a few components. And it can be quickly opened and closed by simply rotating 90 °, with simple operation, and the valve has good fluid control characteristics. When the butterfly valve is in the open position, the thickness of the butterfly plate is the resistance of the medium flowing through the valve body, so the pressure drop generated by this valve is very small, which has good flow control characteristics. Butterfly valves have two sealing types: elastic sealing and metal sealing. Elastic sealing valve, the sealing ring can be embedded on the valve body or attached around the butterfly plate.
SMC solenoid valves are suitable for use in energy and other system pipelines. It can be used as a regulating and throttling device on various corrosive, non corrosive gases, liquids, semi fluids, and solid powder pipelines and containers. Specially suitable for high-rise building fire protection systems and other pipeline systems that require displaying valve switch status.
1、 Overview of Stainless Steel Cyclone Preventer:
Cyclone preventer is a special pipe fitting used to prevent water tanks (pools) from generating vortices during liquid transportation and to prevent air from entering pipelines. Its function is to be installed on the suction pipe port of the water pump in the water tank (pool), to eliminate the vortex inside the water tank (pool), to ensure that the water pump can always start at full force and work normally, to avoid air entering the water pump and causing cavitation, and to lower the liquid level of the liquid transported in the water tank (pool) to a lower level, to ensure maximum flow delivery. The design and manufacturing of this product strictly comply with the requirements of the EU standard EN12845, and it meets the requirements of GB50974-2014 "Technical Specification for Fire Water Supply and Hydrant Systems".
2、 Technical characteristics of stainless steel swirl preventer:
1. The swirl preventer is designed and manufactured according to the EU standard EN12845, with a low submergence of up to 100mm without generating swirl, greatly improving the utilization rate of the water tank.
2. Eliminate the swirling flow generated by the water tank (pool) during the suction process.
3. Prevent air from entering the water pump due to swirling flow, enabling the water pump to deliver water and avoiding damage caused by cavitation.
4. The structure of the swirl preventer is simple and sturdy, achieving economical installation and maintenance free.
The material of the swirl preventer is austenitic stainless steel 06Cr19Ni10 (304), which is strong and has a long service life.
Cyclone preventer
6. Hygiene requirements for SMC solenoid valves.
7. The swirl preventer can be equipped with a filter screen.
When the SMC solenoid valve draws water from the suction box, it is difficult to install a suction well in the suction box. In order to reduce the protection height of the suction pipe, a swirl preventer is required to be installed on the suction pipe to increase the water storage capacity of the suction box.
Article 5.1.13 stipulates that the submergence of the suction port of the water pump should meet the requirements for the pump to operate at low water levels. The submergence of the suction pipe horn at low water levels in the water tank should be determined based on the water flow velocity and hydraulic conditions of the suction pipe horn, but should not be less than 600mm. When using a swirl preventer, the submergence should not be less than 200mm.
3、 Scope of application of swirl preventer:
Cyclone preventer is suitable for fields such as chemical engineering, energy, construction, and fire engineering, especially in fire water intake tanks (boxes), which can ensure that the volume is fully utilized, improve the utilization rate of fire water tanks, reduce stagnant water areas, and achieve land saving requirements. During rescue operations, the fire water usage is limited.