Product Description
1. Application
B69H-16 Mica sheet protected series long window type two-color water level meter is designed and manufactured by our factory for monitoring the water level of power plant boiler drum of thermal power generating set. If the TV monitoring system is matched, remote monitoring can be realized. This series of water level gauge can also be applied to the monitoring of boiler drum water level measuring in power, oil company, chemical industry
Product Parameters
- Main technical specifications
1 .Nominal pressure: 16-32MPa
| Nominal pressure PN |
16MPa |
25Mpa |
32MPa |
| Working pressure |
11.5MPa |
15.5MPa |
22.5MPa |
2 Process connection size DN10, DN15, DN20, DN25, high pressure flange,
OD28x4mm 20G boiler tube or made on needs.
3 working temperature: saturated steam
4 center to center distance: 670mm-1100mm, other length can design on order.
5 visible length: 660mm, 680mm, 710mm, 780mm, 680mm, or on clients demands.
| C-C distance |
No. of Windows |
Body length |
Visible length |
|
the size is design on order , these size for referrence only.
recheck with us for the final size . |
5 |
680mm |
660mm |
| 7 |
780mm |
680mm |
| 9 |
820mm |
710mm |
| 10 |
900mm |
780mm |
| 11 |
|
|
| |
|
|
Installation Instructions
3. Working Principle and Structural Characteristics
3.1 Working principle: this series of dual-color water level meters are connected with the steam drum from upper steam drum and bottom water valves. The water level in the level meter is consistent with the water level of the steam drum.
3.2.the water level gauge is mainly composed of body, mica, after assembly, plate, high strength bolt, LED cold light source assembly (LED cold light source box, insulation box cover, observation, switching power supply) (specially formulated for LED cold light source), balance tube, high pressure valves and other components. (see map).
33 the observation window of the water level meter has a 280mm observation window on the central line of the surface to detect the blind area.At the same time, through the principle of optical reflection and refraction, the red and green light emitted by the red and green LED light source lamp are fired into the observation window of the mica water level meter body, respectively, so that the operator can be on the spot in the boiler drum.Or through the industrial television monitoring system in the centralized control room on the display can be directly and clearly observed the situation of the drum water level, observed steam red, water green, steam full red, water all green display effect
3.3.2 The structure of the double color water level meter for B69H-10~22-3 observation window is like the following picture
3.3.3 The structure of B69H-10~22- 5 double blind water level meter without blind area is as follows:
3.3.4 B69H-22-7 bull eye double color water level meter Itself with a self flushing
structure. Prevent fouling in the observation hole. The use of a long period.
graphite gasket: OD100*44*1.2mm; ID 72*12mm;
Mica sheet/shield: 100*44*1mm (5-6pcs)
aluminosilicate glass 80*24*21mm
cushion seal
protective belt
glass size have: 80*24*21mm, 108*24*21mm, 118*24*21, 320mm*34*17mm
steam water level windows: 3, 5 visual windows, or 7pcs more windows
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