By-product hydrogen heat energy conversion system

Abstract

The application relates to the field of hydrogen energy heat conversion technology, and proposes a by-product hydrogen heat conversion utilization system, which comprises a feeding unit, a mixing device, a reactor, an energy storage water circulating unit, a superheating unit and a heat exchanger.The mixing device is provided with a hydrogen inlet, a compressed air inlet and a mixed gas outlet.The reactor is provided with a raw material gas inlet, a steam outlet and a tail gas outlet, and the raw material gas inlet is in communication with the mixed gas outlet.The energy storage water circulating unit comprises an energy storage water tank and a water supply pump, and the inlet of the water supply pump is in communication with the energy storage water tank.The superheating unit comprises a superheater, and the superheater is provided with a tail gas inlet, a steam inlet and a superheated steam outlet.The tail gas inlet of the superheater is in communication with the tail gas outlet of the reactor, and the steam inlet of the superheater is in communication with the steam outlet of the reactor.The heat exchanger is used for absorbing, storing and converting heat through hydrogen-oxygen catalytic oxidation reaction, high-enthalpy superheated steam which can be used in stages is finally generated, and efficient conversion and staged utilization of hydrogen energy into heat energy are realized.

Claims

1. A system for converting and utilizing the thermal energy of by-product hydrogen, characterized in that, include: The feeding unit includes a mixer, which is provided with a hydrogen inlet, a compressed air inlet, and a mixed gas outlet; The reaction unit includes a reactor, which has a feed gas inlet, a steam outlet and a tail gas outlet. The reactor has a catalyst bed inside and a heat transfer shell surrounding the catalyst bed outside. The feed gas inlet is connected to the mixed gas outlet. An energy storage water circulation unit includes an energy storage water tank and a water supply pump, wherein the inlet of the water supply pump is connected to the energy storage water tank; A superheating unit includes a superheater, which has an exhaust gas inlet, a steam inlet, and a superheated steam outlet. The exhaust gas inlet of the superheater is connected to the exhaust gas outlet of the reactor, and the steam inlet of the superheater is connected to the steam outlet of the reactor. A heat exchanger having a first channel; The outlet of the water supply pump is connected to the inlet of the first channel, the outlet of the first channel is connected to the inlet of the heat transfer shell side of the reactor, and the steam outlet of the heat transfer shell side of the reactor is connected to the steam inlet of the superheater.

2. The by-product hydrogen thermal energy conversion and utilization system according to claim 1, characterized in that, The heat exchanger also includes: The second channel connects the reactor's exhaust outlet to the heat exchanger's second channel inlet, and the heat exchanger's second channel outlet connects to the superheater's exhaust inlet.

3. The by-product hydrogen thermal energy conversion and utilization system according to claim 1, characterized in that, The reactor is a multi-stage fixed-bed reactor, which includes: The first-stage reactor, wherein the feed gas inlet is located in the first-stage reactor; The second-stage reactor is connected to the first-stage reactor, and the exhaust gas outlet is located in the second-stage reactor.

4. The by-product hydrogen thermal energy conversion and utilization system according to claim 1, characterized in that, Also includes: A control valve is located at the superheated steam outlet.

5. The by-product hydrogen thermal energy conversion and utilization system according to claim 1, characterized in that, Also includes: A pressure transmitter is installed at the superheated steam outlet; A temperature resistance thermometer is installed at the superheated steam outlet.

6. The by-product hydrogen thermal energy conversion and utilization system according to claim 1, characterized in that, Also includes: A level gauge is installed in the heat transfer shell side of the reactor.

7. The by-product hydrogen thermal energy conversion and utilization system according to claim 1, characterized in that, Also includes: A hydrogen concentration detector is installed at the outlet of the mixed gas.

8. The by-product hydrogen thermal energy conversion and utilization system according to claim 1, characterized in that, Also includes: Multiple thermocouples are installed in the catalyst bed.

9. The by-product hydrogen thermal energy conversion and utilization system according to claim 1, characterized in that, The feeding unit includes: A first filter is installed at the hydrogen inlet; A first voltage regulator is installed at the hydrogen inlet; A first regulating valve is located at the hydrogen inlet; A second filter is installed at the compressed air inlet; A second pressure stabilizing device is installed at the compressed air inlet; The second regulating valve is located at the compressed air inlet.

10. The by-product hydrogen thermal energy conversion and utilization system according to any one of claims 1 to 9, characterized in that, The reactor also includes: A condensate outlet is connected to the energy storage tank via a return pipe.

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