Method and device for efficient utilization of pressure energy of natural gas pipeline network
A natural gas pipeline network and pressure energy technology, which is applied in the field of pressure energy expansion refrigeration and compressed refrigerant expansion refrigeration, can solve the problem of unused expanders, achieve the effects of reducing power consumption, expanding operating flexibility, and saving operating costs
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[0030] Such as figure 1 As shown, a device for realizing a method for utilizing pressure energy in a natural gas pipeline network includes a natural gas pressure energy refrigeration system and a cold energy utilization system; the natural gas pressure energy refrigeration system includes a three-way valve 16, a high-pressure natural gas peaking tank 1, an expander 2 , The first refrigerant storage tank 12, the first heat exchanger 3, the medium and high pressure natural gas peak shaving tank 4, the second refrigerant storage tank 5, the compressor 10, the third heat exchanger 9 and the third refrigerant storage tank 8; high-pressure natural gas The peaking tank 1 and the expander 2 are connected by a high-pressure pipeline, and the expander 2, the first heat exchanger 3 and the medium and high pressure natural gas peaking tank 4 are connected in turn through the high-pressure pipeline and then connected to the gas pipeline network; through the three-way valve 16...
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