A. The temperature and pressure reducing device can be divided into:
1 medium temperature and medium pressure reducing temperature and pressure relief device:
Primary steam parameters (inlet steam parameters): pressure P1= 3.9mpa; Temperature t1=450℃ pressure;
Secondary steam parameters (outlet steam parameters): pressure P2 shall be determined at the user's request; Temperature t2= saturation temperature;
Flow rate: Q=2~360t/h(t/h)
2 high pressure temperature reduction and pressure relief devices:
Primary steam parameters (inlet steam parameters): pressure P1= 5.4mpa; Temperature t1=485℃ pressure;
Secondary steam parameters (outlet steam parameters): pressure P2 shall be determined at the user's request; Temperature t2= saturation temperature;
Flow rate: Q=20~200t/h(t/h)
3 high-temperature and high-pressure temperature and pressure reducing device:
Primary steam parameters (inlet steam parameters): pressure P1=10MPa; Temperature t1=540℃ pressure;
Secondary steam parameters (outlet steam parameters): pressure P2 shall be determined at the user's request; Temperature t2= saturation temperature;
Flow rate: Q=30~240t/h(t/h)
B. Main technical indexes of temperature and pressure reducing device
1 outlet flow of temperature and pressure reducing device
The steam flow at the outlet of the temperature and pressure reducing device varies from 30%Q to 100%Q.
2 the rated outlet steam pressure of the temperature and pressure reducing device is P2
The deviation range of the rated outlet steam pressure of the temperature and pressure reducing device is:
When the rated outlet steam pressure is less than 0.98mpa, it is P2± 0.04mpa
When the rated outlet steam pressure is no more than 3.82mpa, it is P2± 0.06mpa
When the rated outlet steam pressure is greater than 3.82mpa, it is P2± 0.15mpa
Rated outlet steam temperature t2
Rated outlet steam temperature above saturation temperature (including saturation temperature)
The deviation range of rated outlet steam temperature is smaller than that of rated outlet steam temperature t2±5℃
4 noise from temperature and pressure reducing device
When the temperature and pressure reducing device is in normal operation, the noise is measured at 1m downstream of the center line of the outlet of the temperature reducing valve (pressure reducing valve) at the same horizontal level. The overall noise level shall not be greater than 85dB(A). If the user has any special request, it can be settled by the parties through negotiation.
It can reduce the voltage without loss of energy, and the steam supply can be increased through the device. Simple structure, no rotating parts, reliable operation. Easy operation, easy maintenance, automatic adjustment. The energy saving effect is remarkable.
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Post:200436
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