There are many detection methods for vortex flowmeters, and the difference between sensors and measurement circuits is also large. However, common faults of instruments have commonality. Several instrument faults and countermeasures are shown in the table.
Common troubleshooting of vortex flowmeters in use
1: Vortex flowmeter has the possibility of on-site display or signal output in the absence of medium flow: poor grounding, causing electromagnetic interference; high-frequency interference from high-voltage equipment; excessive vibration of the pipeline; excessive sensitivity of converter design
2: After the vortex flowmeter is energized, there is medium flowing, but there is no on-site display or signal output. Main reason: the flowmeter hardware is faulty, such as the power supply line is not connected, the amplification board is damaged, etc.; the pipeline is blocked; the actual flow value is too small, Run below the lower limit of the flowmeter
3: The output signal of the vortex flowmeter is unstable, and the jump is very large. The main reason is: sensor hardware failure; strong electrical interference; pulsating flow or two-phase flow in the medium; the vibration of the pipeline; the gasket protrudes into the tube; The installed valve has interference; the medium is not filled with the pipeline; there is cavitation in the pipeline; the flowmeter is entangled with debris
4: The error of vortex flowmeter measurement is relatively large. The main reason is that the instrument hardware is faulty; the length of the straight pipe before and after is insufficient; the fluctuation of the power supply voltage is relatively large; the flowmeter is installed differently from the pipeline, or the gasket protrudes into the pipeline; The difference from the inner diameter of the pipe is too large; there is a two-phase flow or a pulsating flow of the medium; the pipe has a leak
5: Vortex flowmeter measuring tube leakage main cause: the pressure inside the pipe is too high; the nominal pressure is not selected correctly; the seal is damaged; the sensor has been corroded
6: The main cause of the whistling sound of the vortex flowmeter sensor is that the medium flow rate is too fast, causing the flowmeter to vibrate strongly; the medium in the pipeline has cavitation; the flowmeter is loose.
Mining Screen Mesh is always used as mine sieve mesh, mine Vibrating Screen Mesh, vibrator sieve mesh etc. as it can be customized according to clients' requirements, it always can be produced from 1mm to 20mm wire diameter. hole size is no limitations.
Mining screen mesh material:
Iron wire Q195, Q235.
high carbon steel wire 45#, 50#, 55#, 60#, 65#, 72A, 82B.
Manganese steel wire 30Mn, 65Mn.
Stainless steel wire 304, 316, 304L, 316L.
Mining screen mesh type:
Flat panel, panel with hook, panel with bind covers, in rolls.
Mining screen mesh wire diameter can be from 1.5mm to 22mm
|
Hole size (mm) |
Light Types |
Middle Types |
Heavy types |
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|
Wire diameter (mm) |
Opening Rate % |
Wire diameter (mm) |
Opening Rate % |
Wire diameter (mm) |
Opening Rate % |
|
|
125.0 |
- |
- |
10.00 |
86 |
12.5 |
83 |
|
112.0 |
- |
- |
10.00 |
84 |
12.5 |
81 |
|
100.0 |
- |
- |
10.00 |
83 |
12.5 |
79 |
|
90.0 |
- |
- |
10.00 |
81 |
12.5 |
77 |
|
80.0 |
- |
- |
10.00 |
79 |
12.5 |
75 |
|
71.0 |
- |
- |
10.00 |
77 |
12.5 |
72 |
|
63.0 |
8.00 |
79 |
10.00 |
74 |
12.5 |
70 |
|
56.0 |
8.00 |
77 |
10.00 |
72 |
12.5 |
67 |
|
50.0 |
6.50 |
79 |
8.00 |
74 |
10.00 |
69 |
|
45.0 |
6.50 |
77 |
8.00 |
72 |
10.00 |
67 |
|
40.0 |
6.50 |
75 |
8.00 |
69 |
10.00 |
64 |
|
36.0 |
5.00 |
77 |
6.50 |
72 |
8.00 |
67 |
|
32.0 |
5.00 |
75 |
6.50 |
70 |
8.00 |
64 |
|
28.0 |
5.00 |
72 |
6.50 |
67 |
8.00 |
60 |
|
25.0 |
5.00 |
69 |
6.50 |
64 |
8.00 |
57 |
|
22.0 |
4.00 |
72 |
5.00 |
66 |
6.30 |
60 |
|
20.0 |
4.00 |
69 |
5.00 |
64 |
6.30 |
58 |
|
18.0 |
4.00 |
67 |
5.00 |
61 |
6.30 |
55 |
|
16.0 |
3.00 |
70 |
4.00 |
64 |
5.00 |
58 |
|
14.0 |
3.00 |
67 |
4.00 |
60 |
5.00 |
54 |
|
13.0 |
3.00 |
65 |
4.00 |
58 |
5.00 |
52 |
|
11.0 |
2.50 |
67 |
3.00 |
61 |
4.00 |
54 |
|
10.0 |
2.50 |
64 |
3.00 |
58 |
4.00 |
51 |
|
9.0 |
2.50 |
61 |
3.00 |
55 |
4.00 |
48 |
|
8.0 |
2.00 |
64 |
2.50 |
58 |
3.00 |
51 |
|
7.0 |
2.00 |
61 |
2.50 |
55 |
3.00 |
48 |
|
6.0 |
2.00 |
56 |
2.50 |
50 |
3.00 |
43 |
|
5.0 |
2.00 |
54 |
2.50 |
44 |
3.00 |
38 |
|
4.5 |
1.80 |
51 |
2.20 |
45 |
2.50 |
41 |
|
4.0 |
1.60 |
51 |
2.00 |
44 |
2.20 |
41 |
|
3.0 |
1.20 |
50 |
1.50 |
40 |
2.00 |
38 |
|
2.0 |
0.80 |
50 |
1.20 |
41 |
1.50 |
40 |
|
PS: Other hole size and wire diameter to match, clients can require. |
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FAQ:
1. Are you manufacturer of Mining screen mesh?
Answer: yes, we are manufacturer with about 20 years production experiences. We have our own stable material supplier, just two factories, whom can supply us good quality and series diamete and material, can asure us to give our clients stable and qualify supply.
2. how is your delivery time?
Answer: always this is based on clients` quantity, our commonly delviery time is 7-10days, detailed we can discuss.
3. which countries do you export to?
Answer: Saudi Arabia, Pakistan, Africa, America, Australia, Russia, Japan, Korea etc. We are wishing to open more market in more countries.
4. Can you produce according to design?
Answer: Yes we can, we are factory, so all types can be customized, as we have our own technician.
Mining Screen Mesh
Mining Screen Mesh,Mining Screens,Trommel Screen,Vibrating Screen
Anping HUAHAIYUAN WIRE MESH CO.,LTD , https://www.crusherscreenmesh.com