Device for pulverization and explosion suppression of low carbon gas hydrate
The present invention discloses a device for pulverization and explosion suppression of low carbon gas hydrate (LCGH). A feeding chamber connects with a pulverizing chamber, and the chambers communicate through a feed port. A pulverizing air pipe and the feeding chamber communicate through a feeding air pipe; two ends of a venturi connect with an entrainment chamber and a disperser respectively; and a gas-solid separation membrane (GSSM) is disposed on a discharging port and used for preventing LCGH powder from entering the entrainment chamber from the pulverizing chamber. When an explosion is triggered, the GSSM is opened to make the LCGH powder enter the entrainment chamber. The device can store and pulverize the LCGH and spray LCGH powder to achieve combustion and explosion suppression.
1. A device for pulverization and explosion suppression of a low carbon gas hydrate, comprising:
a pulverizing chamber, wherein the pulverizing chamber is provided at the top thereof with a discharging port, and the discharging port is connected with an entrainment chamber;
a feeding chamber, wherein the feeding chamber is connected with a side wall of the pulverizing chamber, the feeding chamber is provided with a feeding port, the feeding port is provided with a sealing cover that can be opened or closed, the pulverizing chamber is in communication with the feeding chamber through a feed port, a switching valve is disposed at the position of the feed port, and the switching valve is used for opening or closing the feed port;
a pulverizing air pipe, wherein the pulverizing air pipe ventilates the pulverizing chamber, a high-speed airflow can be formed in the pulverizing chamber to pulverize a low carbon gas hydrate solid in the pulverizing chamber, the pulverizing air pipe is in communication with the feeding chamber through a feeding air pipe, and the pulverizing air pipe and the feeding air pipe are provided with a first valve and a second valve respectively;
a venturi, wherein two ends of the venturi are connected with the entrainment chamber and a disperser respectively, and the pulverizing chamber, the entrainment chamber, the venturi and the disperser are sequentially in communication with each other;
a nozzle, wherein the nozzle extends into the entrainment chamber and can spray an airflow into the entrainment chamber; and
a gas-solid separation membrane, wherein the gas-solid separation membrane is disposed on the discharging port and used for preventing low carbon gas hydrate powder from entering the entrainment chamber from the pulverizing chamber, and when an explosion is triggered, the gas-solid separation membrane can be opened to make the low carbon gas hydrate powder enter the entrainment chamber from the pulverizing chamber under the action of the airflow.
2. The device for pulverization and explosion suppression of the low carbon gas hydrate according to claim 1 , further comprising an annular pipe, wherein the annular pipe sleeves the pulverizing chamber, and the annular pipe is connected with the pulverizing air pipe; the annular pipe is in communication with the pulverizing chamber through a plurality of ventilation pipes, and the ventilation pipes are tangential to the inner side wall of the pulverizing chamber so that a spiral airflow can be formed in the pulverizing chamber.
3. The device for pulverization and explosion suppression of the low carbon gas hydrate according to claim 2 , further comprising a cooling wrapping cover, wherein the cooling wrapping cover is filled with a cooling medium; and the cooling wrapping cover wraps the annular pipe, the pulverizing chamber, the venturi, the nozzle, the entrainment chamber and the feeding chamber to make the low carbon gas hydrate solid maintain a stable low temperature state.
4. The device for pulverization and explosion suppression of the low carbon gas hydrate according to claim 3 , wherein a cooling medium inlet and a cooling medium outlet are disposed on the cooling wrapping cover; the cooling medium inlet and the cooling medium outlet are connected with an outlet and an inlet of an external cooling medium storage box respectively, and the cooling medium inlet and the cooling medium outlet are provided with a third valve and a fourth valve respectively.
5. The device for pulverization and explosion suppression of the low carbon gas hydrate according to claim 4 , wherein the outer wall of the cooling wrapping cover is provided with a heat insulation layer.
6. The device for pulverization and explosion suppression of the low carbon gas hydrate according to claim 1 , wherein one end of the gas-solid separation membrane is hinged to the inner wall of the discharging port, and the other end is clamped on the inner wall of the discharging port.
7. The device for pulverization and explosion suppression of the low carbon gas hydrate according to claim 1 , further comprising an intake manifold, wherein the pulverizing air pipe and the feeding air pipe are in communication with the intake manifold; the intake manifold is provided with a first flow control instrument; the nozzle is connected with a nozzle air pipe, and the nozzle air pipe is provided with a fifth valve and a second flow control instrument.
8. The device for pulverization and explosion suppression of the low carbon gas hydrate according to claim 1 , wherein a pressure sensor is fixedly disposed on the inner wall of the venturi.
9. The device for pulverization and explosion suppression of the low carbon gas hydrate according to claim 1 , wherein one end of the switching valve is hinged to the inner wall of the feed port, and the other end is magnetically adsorbed and connected with the inner wall of the feed port.
10. The device for pulverization and explosion suppression of the low carbon gas hydrate according to claim 1 , wherein the two ends of the venturi are in threaded connection with the entrainment chamber and the disperser respectively.