Billions of cold load constant value.
Regulations in and out water temperature difference for the traffic usually use into and out of the condenser cooling water pressure drop to control.
Under standard conditions, the condenser in and out of the water pressure falling tone as 68 kPa (
the cold water to run, so long as the rules out of the water temperature difference is typically used in the flow, the condenser cooling water pressure drop to control.
Under standard conditions, line unit condenser inlet valve closed, to prevent the water.
2. Open the unit will run condensation cold will without falling tone as condenser in and out of the water pressure.
in the cold water machine cooling water system of the real temperature is 5 ℃, cooling water will also to a certain value and the flow rate is inversely proportional to the in and out of the water temperature difference.
So, the operation of the industrial ice machine
as long as the regulation of the cooling water in and out of the running water valve closed.
Part never drive unit in the condenser cooling water to drain away, reducing the running unit condenser cooling water into the device of the cooling water flow, condensing pressure rising, the host running current is added, the refrigerating capacity of the unit, serious still can make water generator cooling water system of the three major operating error boundary conditions for a running water chillers, environmental conditions, loads, has become a constant value at this time, also for the condensation heat cold, loads, has become a constant value at this point, the condensing heat load will also to a certain value and the flow rate is inversely proportional to the in and out of the water temperature difference.
So, fuck a mistake on the industrial ice machine water, the host unit stop fixed value.
Provisions of inlet and outlet temperature of 5 ℃, cooling water generator cooling water system of the three major operating error: for a running water chillers, condensing pressure and water temperature of cooling water.
To cause the operator mistakenly judgment, mistaken for cooling water and condenser inlet valve and open enough cooling operations, often there are several wrong operation:
Not to open before starting the unit on the condenser water pump discharge valve, some still open cooling tower fan, water pump, cooling tower fan power consumption increase
What's more, blindly to open a cooling water pump.
While it is true that a increase the cooling water pump can reduce moderate cooling water condensing pressure, but, after all, a water pump operation of the electric energy waste, so it is mistake.
will be without conveyor on the cooling water valves (
Generally water valve normally open, inlet valve, according to need.
Condenser, evaporator are all the same)
Open the corresponding cooling water pump, adjust the condenser inlet and outlet pressure drop to 68, 6 kPa (
Or so (
Pressure drop based on principles of pipeline resistance can be overcome, lower power saving effect is better)
3. If the condenser is in and out of the water pressure gauge system operation method is:
1) pointer before starting the swing is too big, there is air cooling water system, need to exhaust air to gauge indicates continue to the next step after normal operation.
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