Reactor temperature control integrated machine operation needs to consider the problem

Reactor temperature control integrated machine supporting the reactor is a kind of reaction equipment, in the operation of the need to pay attention to the compressor problems, to avoid damage
due to various reasons.

1.
Suction temperature of the compressor: The suction temperature of the compressor refers to the temperature of the refrigerant gas in the suction chamber of the compressor; For centrifugal compressors, the refrigerant gas temperature on the suction guide vane should be the same
.

The level of the suction temperature not only affects the level of the exhaust temperature, but also has an important impact on
the volume refrigeration capacity of the compressor.

When the compressor suction temperature is high, the exhaust temperature is also high, and the specific capacity of the refrigerant is sucked in, and the volumetric cooling capacity of the compressor is small at this time, which is what we do not want
.

Conversely, when the suction temperature of the compressor is low, its volumetric cooling capacity is large
.

However, the compressor suction temperature is low, which may cause the refrigerant liquid to be sucked in by the divisor compressor, causing the reciprocating compressor to undergo "liquid strike"
.

For centrifugal compressors, the suction pressure of the compressor is too low due to the low suction temperature, which may produce surge
.

Therefore, it is necessary to stipulate the suction superheat
of the compressor.

2, compressor exhaust temperature: the exhaust temperature is much higher than the condensation temperature, the direct impact of the exhaust temperature is the suction temperature of the compressor, the two are proportional relationship
.

If the reciprocating compressor suction, exhaust valve plate is not tight, or the breakage causes leakage (internal leakage), the exhaust gas temperature will rise
significantly.

In centrifugal refrigeration units, if the refrigeration system is mixed with air, the suction temperature and exhaust temperature will increase
.

3, the reactor temperature control machine of the intermediate pressure and temperature: the intermediate throttling gas replenishment device is called the power saver, the pressure in the power saver is the intermediate pressure of the unit, the corresponding refrigerant temperature is the intermediate temperature Of the principle of determining the intermediate pressure is to make the total power consumption of the low pressure and high pressure stage compressor of the two-stage centrifugal refrigeration compressor as small as possible, and the circulating refrigeration system is as large
as possible.

4, oil pressure difference, oil temperature and oil level height: the lubricating oil system is the normal operation of the unit part, it provides lubrication and cooling conditions
for the moving parts of the unit.

From the characteristics of the lubrication system composition of various units, in addition to the reciprocating unit storing the lubricating oil in the compressor crankshaft and attached to the refrigeration system, the centrifugal and screw units have independent lubricating oil systems, have their own oil storage containers, and have oil coolers
specifically used to reduce oil temperature.

Therefore, the oil pressure difference, oil temperature and oil pressure height of the lubricating oil are the three elements
to ensure the lubrication and cooling of the moving parts of the unit under normal working conditions.