热氟融霜工艺流程2009年04月08日
F1：Applications Modulating pressure and temperature regulators Hot gas defrosting from top of evaporator –direct expansion
氨基酸的分类
This defrosting system is ud on commercial and industrial central refrigerating systems
with veral evaporators and direct expansion.
路由交换技术
Product list
(1) PM 1 Main valve (shut-off valve)
(2) EVM On/off pilot
唱的英文(3) TE 20 Thermostatic expansion valve
(4) PM 1 Main valve (shut-off valve)
(5) EVM On/off pilot
(6) PM 3 Main valve (modulating)
(7) CVPP (HP) Differential pressure pilot
(8) EVM On/off pilot
(9) NRVA Check valve
发动机烧机油(11) NRVA Check valve
(12) PM 3 Main valve (modulating)
(13) EVM On/off pilot
(14) CVQ Electric pilot (actuator)
(15) EKS 61: Electronic temperature regulator醉成语>有关黄鹤楼的诗句
(16) AKS 21M Pt 1000 _ air nsor
Function
Refrigerating pha Liquid pass through shut-off valve PM 1 (1)kept open by its pilot EVM (2).
Liquid injection occurs through thermostatic expansion valve TE 20 (3). Main valve PM 3 (12) modulates the evaporating pressure in order to maintain the temperature
of the air being cooled.
The function is performed by CVQ pilot (14) which is itlf controlled by electronic regulator EKS
61 (15) with air nsor AKS 21 M (16). Pilot valve EVM (13) is open. Main valve PM 3 (6) in the high-pressure line is kept open by pilot E~ Defrosting valve PM 1(4) is
kept clod by pilot EVM (5).
戊戌变法时间
平板电脑的英文Defrosting pha
Main valves PM 1 (1), PM 3 (6) and PM 3 (12) are clod -each by their own EVM pilot.
Main valve PM 1 (4) is opened by EVM pilot (5) and feeds hot gas against the direction of flow to the evaporators that need defrosting.
Setting
Example
System with R22 The CVPP (HP) (7) is pret at between 1 and 1.5 bar.
