Haier PGT2.0-2, Installation Manual

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3
Instruction manual for collector installation
I.
Introduction of the plate collector
1. Technical parameters of the plate collector
Model
Light receiving
area (m
2
)
Exterior size (mm)
Net weight
(kg)
Gross weight
(kg)
PGT2.0-2 1.9 2000*1020*84 40 43
Maximum loadability of the plate collector: without being damaged by the test pressure of 1.2MPa
and the working pressure is 0.15
～
0.2MPa.
2. Pressure drop graph of one collector
Flow/pressure graph of one plate heat collector
0.01
0.019
0.029 0.038
0.058
1.14
1.64
2.11
2.47
3.07
0
0.5
1
1.5
2
2.5
3
3.5
1 2 3 4 5
流量（L/S）
压降
(
K
P
a
)
流量（L/s·台）
压降（KPa）
The four major factors that impact the pressure drop of the collector are as following:

The quantity of the liquid flowing through the collector
：
When the diameter and the coarseness of the
draining pipe and collecting pipe for the collector is fixed, the pressure drop increases along with the
quantity increase of the liquid flowing through the collector.

The diameter of the draining pipe and collecting pipe for the collector
：
When the coarseness of the inner
wall of the pipe and the liquid quantity is fixed, the pressure drop increases along with the decrease of
the diameter.

The coarseness of the inner wall of the draining pipe and collecting pipe for the collector: When the
liquid quantity and pipe diameter is fixed, the pressure drop increases along with the increase of the
coarseness of the pipe
’
s inner wall.

The liquid viscosity: when other conditions are the same, the pressure drop increases along with the
viscosity increase of the liquid flowing in through the collector.
Flow
Pre
ss
ur
e dr
op
(
)K
Pa)
Flow
Pressure drop ()KPa)
set