Patent ID: 11946007
Assignee: PEKING UNIVERSITY
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 10:
11. The natural gas separation and purification and mercury collection system for oil and gas wells according to claim 2, wherein the mercury collection and separation mechanism comprises a separation tank, carriers, gold foil meshes, an aerator, a partition, a guide fan, heat exchange tubes, a temperature-humidity sensor, and pressure-flow sensors; the separation tank is a closed chamber structure with a rectangular axial section; the separation tank comprises an upper end surface provided with a gas inlet and a gas outlet, and a bottom provided with a drain outlet; the gas inlet and the gas outlet are distributed at two sides of an axis of the separation tank; the partition is embedded in the separation tank and connected to a top and a side wall of the separation tank; a distance between the partition and the bottom of the separation tank does not exceed 10% of a height of the separation tank; the partition divides the separation tank into a mercury removal chamber and a gas discharge chamber; the gas inlet is communicated with the mercury removal chamber, and the gas outlet is communicated with the gas discharge chamber; each of the carriers is a closed and circular structure, and is provided with 1-2 gold foil meshes; the carriers are embedded in the mercury removal chamber, coaxial with the mercury removal chamber, and slidably connected to an inner side of the mercury removal chamber through sliding rails; a distance between each two adjacent carriers is not less than 10 mm; the aerator is communicated with the gas inlet, located inside the mercury removal chamber, and connected to a top of the separation tank; there are at least two heat exchange tubes, comprising a first heat exchange tube located below the partition, connected to the bottom of the separation tank, and surrounding the axis of the separation tank, and a second heat exchange tube embedded in the gas discharge chamber and connected to a side wall of the separation tank corresponding to the gas discharge chamber; an outer side of the separation tank corresponding to the second heat exchange tube is provided with a pipe joint and communicated with the external condensation purification and separation mechanism through the pipe joint; the temperature-humidity sensor is embedded in the gas outlet; each of the gas inlet and the gas outlet is provided with a pressure-flow sensor; at least one guide fan is connected to the bearing frame and communicated with the gas outlet and the shunt through a second guide tube; the at least one guide fan is communicated with the natural gas storage tank through the shunt; and the at least one guide fan, the temperature-humidity sensor, and the pressure-flow sensors are electrically connected to the driver circuit.