的正常使用与维护保养： Normal use and maintenance of oval gear flowmeter :
1. The meter head of the elliptical gear must have a certain amount of lubricating oil. The lubricating oil is generally silicone oil or arsenic oil.
2. The oval gear flowmeter should be regularly inspected on time, listening to: whether there is noise during operation; see: whether the mechanical counter of the meter head is blocked, and whether the recording is continuous.
3. The filter should be cleaned every six months. Whether the filter is clogged is judged from the pressure difference between the inlet and outlet (generally, the pressure difference should be cleaned when it exceeds 0.07MPa).
4. The gear transmission part of the meter head of the oval gear meter should be cleaned, inspected and lubricated every year, and the meter head should be adjusted.
5. Use within the specified range of the elliptical gear flowmeter, and do not exceed the limit; overload for 20% must not exceed 30 minutes, otherwise the accuracy of the measurement will be reduced.
6. Don't reverse the liquid. The pointer of the on-site display or the counter wheel of the counter indicates reverse flow. It should be checked in detail to avoid accidents.
7. Filter screen should be 40 or 60 (mesh / inch) stainless steel wire mesh.
8. The transmission and magnetic conditions of magnetic seal couplings or mechanical seal couplings should be checked to see if the magnetic field strength is sufficient and the magnetic steel should be updated in time.
9. Open the bypass valve slowly and then open the inlet valve of the oval gear flowmeter before opening, and then open the outlet valve. At the same time, pay close attention to the movement speed of the pointer of the flowmeter. After normal operation, close the bypass valve. If an abnormality occurs, the bypass valve should be opened immediately, and the inlet and outlet valves should be closed at the same time for inspection and treatment.
10. After the Xin'an pipeline or maintenance, one day after putting into use, the filter must be opened to remove impurities. In normal use, the light oil must be cleaned once for half a year and the heavy oil for three months. It is forbidden to use steam to blow the flowmeter.
11. When the graphite bearing is replaced, the maximum gap is not more than 0.1mm for the DN50 flowmeter; the maximum gap is not more than 0.2mm for the DN150 flowmeter; the gap between the upper and lower covers and the rotor and the rotor and the measuring chamber inner cavity The maximum gap should not exceed 0.15mm.
12. When disassembling and maintaining, mark important parts to avoid incorrect installation.
13. During assembly, the rotor should be rotated flexibly, the gap is even, and the meshing is correct. The inner cavity is rotated between the rotors, and there should be no frictional collision between the rotor and the upper and lower covers.
的产品特点 Product Features of Oval Gear Flowmeter
1. High measurement accuracy: 0.2 and 0.5;
2. The mechanism is simple, sturdy and reliable;
3. It is especially suitable for measuring medium with high viscosity, and it is not sensitive to changes in the viscosity of the liquid being measured;
4. Easy installation. There is no need for straight pipe sections before and after the flowmeter. Even if the flowmeter is close to the valve, elbow, shrink pipe, and enlarged pipe, there is no need to install straight pipe sections.
5. AKTLC-a cast iron elliptic gear flowmeter, widely used in the measurement of various oil products and non-corrosive liquid media of cast iron
，用于高压、低腐蚀性介质的计量 6. AKTLC-e cast steel elliptic gear flowmeter , used for the measurement of high pressure and low corrosive media
7, AKTLC-b type is widely used in the measurement of highly corrosive liquid media, such as acid, alkali, salt and organic compounds
8. In order to prevent the gear of the flowmeter from being stuck by impurities, a filter must be installed upstream of the flowmeter.
9. Explosion-proof grade: ExiaIICT6