Dry gas seal control systems for CMQ pumps
Purposes:
√ Ideal for tandem or dual dry gas seals for pumps
√ Provide a certain pressure and flow of clean dry gas for the seal
√ Monitor the operation of seals with alarm
Features:
√ Designing, manufacturing and inspection refer to GB/T150
√ Piping components and instrument configurations in accordance with AP1682
√ Panel or box structures are available:
1.Operation and easy maintenance for panel structures
2.Simple and beautiful appearance for box structures
Special design:
√ Customized designing and manufacturing available
Piping plans:
√ Ideal for auxiliary systems for mechanical seals API 682 Plan 72,74,75,76
Configurations and functions:
|
S/N |
Configurations |
Functions |
|
① |
Filter |
Filter particles in the gas meet requirements of booster pump |
|
② |
Self-operated pressure regulator |
Stabilize the pressure source to the set value, generally integrated with the filter |
|
③ |
Check valve |
Prevent process media from back-streaming into the nitrogen pipe network, and prevent flare gas from back-streaming into the dry gas seal system |
|
④ |
Leakage collection tank |
Collect the process media of seal leakage |
|
⑤ |
Flowmeter |
Monitor flow of systems, and generally integrated with the flow transmitter |
|
⑥ |
Liquid level meter |
Monitor the liquid level of leakage collection tanks |
|
⑦ |
Pressure switch / pressure transmitter |
Monitor pressure of systems and report to PCS rooms |
|
⑧ |
Flow switch / Flow transmitter |
Monitor flow of systems and report to PCS rooms |
|
⑨ |
Level switch / level transmitter(optional) |
Monitor the liquid level of leakage collection tanks and report to central control room |
|
⑩ |
Pressure gauge (optional) |
Monitor pressure of systems |
Interface details:
|
Interface details |
|||||
|
Interface identification |
Purposes or descriptions |
Connection dimensions |
|
||
|
CMQ41* |
CMQ251* |
CMQ261* |
|
||
|
A |
Pipeline nitrogen |
DN15 |
DN15 |
DN15 |
|
|
B |
Seal gas |
Φ10 |
Φ10 |
Φ10 |
|
|
C |
Vent |
/ |
Φ10 |
/ |
|
|
D |
To flare |
/ |
DN15 |
DN15 |
|
|
E |
Inlets of collection tanks |
/ |
DN15 |
/ |
|
|
G |
Drain of collection tanks |
/ |
DN20 |
/ |
|
|
Interface details |
|||||
|
Interface identification |
Purposes or descriptions |
Connection dimensions |
|
||
|
CMQ41* |
CMQ251* |
CMQ261* |
|
||
|
A |
Pipeline nitrogen |
DN15 |
DN15 |
DN15 |
|
|
B |
Seal gas |
Φ10 |
Φ10 |
Φ10 |
|
|
C |
Vent |
/ |
Φ10 |
/ |
|
|
D |
To flare |
/ |
DN15 |
DN15 |
|
|
E |
Inlets of collection tanks |
/ |
DN15 |
/ |
|
|
G |
Drain of collection tanks |
/ |
DN20 |
/ |
|