Manual valve power switch inconvenience, instead of pneumatic valve should pay attention to what? Pneumatic diaphragm pump each component maintenance and key matters
Pneumatic valve, to put it bluntly, is a new valve that pushes the cylinder to push the valve through the steam body as a power device. Pneumatic valve has been widely used since industrial production 4.0. Pneumatic valve types can be divided into two kinds according to the exercise way, one is rotation operation, one is left and right operation; According to the cylinder structure is divided into two kinds, one is piston machine, one is plastic film type, piston machine stroke arrangement, driving force, precision pneumatic valve, put bluntly is through the steam body as a power device to promote the cylinder to promote the valve of a new valve, industrial production 4.0 pneumatic valves have been widely used. Pneumatic valve types can be divided into two kinds according to the exercise way, one is rotation operation, one is left and right operation; According to the cylinder structure is divided into two kinds, one is the piston machine, the other is the plastic film type, the piston machine stroke arrangement is large, the driving force is large, the precision is relatively low, suitable for power switch or disconnect application, the plastic film type stroke arrangement is small, the driving force is small, the precision is relatively high, suitable for adjusting the application. Pneumatic valves can generally be made open and closed/normally open two kinds, can be disconnected or access applications.
In recent years, under the premise of the rapid development of industrial production, the valve usage surge, some pipeline valve design in the scheme, did not take into account the installation method or operating frequency, the choice of manual valve, resulting in the spot application is extremely inconvenient, some reasons cause the valve can not be directly disassembled and disassembled. In order to solve this problem, some manual valves can be replaced with pneumatic valves.
Here are some key parameters that must be implemented: 1, on the spot pneumatic valve working pressure 2, on the spot whether to explosion-proof type (protection level) 3, operation method (air open/air closed) 4, is it necessary to prepare for torsion spring calibration 5, is it necessary to prepare for manual organization 6, valve operation frequency transformation shows that the key process of manual valve to pneumatic valve design and measurement work, It is necessary to select the matching actuator considering the specific application situation of customers (the working pressure of pneumatic valve on the spot should be strictly implemented), the indoor space specification of on-site assembly of surveying and mapping engineering (it should be noted that indoor space for installation of accessories should be considered here), the specification of connecting bracket of surveying and mapping engineering (transcribing records), and feedback to the factory for processing connecting parts and other accessories. The electric actuator must be customized by the external contractor.
Assembly common problems during the installation process, it is necessary to pay attention to the actuator, go to the site of ventilation operation power switch detection, no abnormal party can be installed and applied, abnormal, need to remove the problem, if not necessary conditions on the spot should be sent to the processing plant immediately, after the end of the assembly connection, should be connected to the pneumatic valve operation detection, set the power switch travel arrangement.
First set the travel arrangement, and then set the travel arrangement, after the travel arrangement is set, continue to operate a few times, to see if there is no anomaly, no anomaly can be notified to customers for acceptance.
Maintenance and key issues of each component of pneumatic diaphragm pump electrostatic sparks may cause personal safety accidents and property losses, according to the need to use a large enough section of the wire, the grounding device screw in the pump properly on the grounding device.
Ensure that the pneumatic diaphragm pump has been in a better operation or standby state. All business buildings installed daily life pneumatic diaphragm pump, fire pump, pressure regulator pump, pressure booster pump, sewage pump, central air conditioning pneumatic diaphragm pump. By the management office maintenance workers undertake pneumatic diaphragm pump maintenance on time.
Check that the pump shell shall not be damaged, the factory nameplate is intact, the water direction mark is clearly established, the appearance is clean and tidy, and the paint is intact. Pneumatic diaphragm pump to be driven by compressed gas, according to the valve disc reciprocating variation resulting in capacity changes of the positive displacement pump, its working principle is infinitely close to the hydraulic piston pump. Pneumatic diaphragm pump operation should pay attention to the following aspects: 1. Ensure that the coarse particles contained in the liquid shall not exceed the larger safety of the centrifugal pump according to the particle size specification.
2, the intake pressure should not exceed the centrifugal pump is very high allowable application of working pressure, high pressure of compressed gas may cause accidental injury property losses and damage the characteristics of the centrifugal pump.
3, ensure that the pump pressure pipeline can withstand the very high system pressure, to ensure the cleaning and normal working conditions of the gas path system.
4. Electrostatic sparks may cause personal safety accidents and property losses. According to the need to use a large enough section of wire, the grounding device screw in the pump should be properly grounded.
5. Grounding requirements comply with local policies, regulations, laws and regulations and some special requirements of the site.
6. Tighten the pump and the connecting tee joints to avoid electrostatic sparks caused by vibration collision. Use an ESD plastic hose.
7. Periodically check and test the reliability of the grounding device system, and stipulate that the grounding wire resistance is less than 100 ohms.
8, maintain good exhaust pipe and ventilation, avoid flammable and explosive goods and pyrogen.
9, centrifugal pump exhaust pipe may contain solid matter, do not put the air outlet to the work area or people, so as to avoid accidental injury.
10. When the diaphragm is ineffective, the material transported is sprayed from the exhaust pipe muffler.
11, when conveying flammable and toxic liquids, please put the sewage outlet to avoid the safety area of the working area.
12, please choose at least 3/8″ nominal diameter cavity smooth pipe butt air outlet and silencer.
13, fluid high pressure may cause very serious personal accidents and property losses, do not make any operation and maintenance work on the pump and material pipe system software when the pump is pressurized. If it is necessary to do maintenance, first disconnect the centrifugal pump air inlet, open the pressure relief organization of the bypass valve so that the pipeline system software pressure relief, gradually loosen the connected pipe joints.
14, such as the delivery of harmful and toxic liquid pump, do not immediately send the pump to the manufacturer to repair.
Combined with the relevant local laws and regulations, proper disposal, and Shanghai Wangquan pump factory enterprise spare parts to ensure the service life.
15, liquid transport part of the application of aluminum alloy profile pump, do not be used to transport with Fe3 liquid and benzene homologue and its halogenated nitrogen oxide compound organic solvent, will produce corrosion caused by the collapse of the pump shell.
16, to ensure that all the contact conveyor components are not damaged by the liquid erosion.
17, ensure that each operation staff understand the operation application and master the safety of the centrifugal pump specifications, if necessary, distribution of the necessary protective equipment.
18, the standard use of pump, can not be a long time international empty operation. Pneumatic diaphragm pump daily maintenance and maintenance to ensure that pneumatic diaphragm pump has been in a better operation or standby state. All business buildings installed daily life pneumatic diaphragm pump, fire pump, pressure regulator pump, pressure booster pump, sewage pump, central air conditioning pneumatic diaphragm pump. By the management office maintenance workers undertake pneumatic diaphragm pump maintenance on time.
A, daily life pneumatic diaphragm pump and air conditioning pneumatic diaphragm pump every week for daily inspection and maintenance, half a year for maintenance.
Two, fire safety pneumatic diaphragm pump and spray pump every month, pressure pump every February for a test run, use time of 10-15min, fire pump start at the top of the pipe network test hydrant inlet and outlet sprinkling effective range up to 6M, half a year for maintenance.
Three, sewage pump, submersible pneumatic diaphragm pump half a year maintenance.
Four, pneumatic diaphragm pump maintenance to connect with the pump shell within 2 meters of the valve, barometer, pipeline with the pump at the same time maintenance.
Post time: Mar-01-2023
