Gas cracking heating device

Abstract

A gas pyrolysis heating device includes an outer sleeve, an inner sleeve, a heat insulation structure, multiple heating rods, a coil, and a catalyst module. The outer sleeve has an inlet and an outlet. The inner sleeve is disposed inside the outer sleeve and has a flow channel. The heat insulation structure is disposed between the outer sleeve and the inner sleeve. Multiple heating rods are arranged in a ring inside the inner sleeve. The coil has a double-tube structure, with an inlet connecting to the inlet and an outlet connecting to the flow channel. The catalyst module is detachably located inside the inner sleeve and inside the heating rods. The catalyst module has an inlet corresponding to the flow channel and an outlet corresponding to the outlet. Through this integrated design of the heating rods, coil, and catalyst module, the gas is heated by multiple heating rods and introduced into the multi-layer catalyst layer of the catalyst module for reaction, which can effectively improve the pyrolysis efficiency of ammonia and also achieve a compact structure.

Claims

1. A gas pyrolysis heating device, comprising: an outer sleeve having an inlet and an outlet; an inner sleeve disposed within the outer sleeve, the inner sleeve having a flow channel communicating between the inlet and the outlet; a heat insulation structure disposed between the outer sleeve and the inner sleeve; a plurality of heating rods arranged in a ring within the inner sleeve; a coil disposed around the outer side of the heating rods, the coil including an inner tube and an outer tube of a double-tube structure, the inner tube and the outer tube of the coil each having a communicating inner circumferential path, the coil having an inlet communicating with the inlet and an outlet communicating with the flow channel; and a catalyst module detachably located within the inner sleeve, the catalyst module being located inside the heating rods, the catalyst module having an inlet corresponding to the flow channel and an outlet corresponding to the outlet.

2. The gas pyrolysis heating apparatus as claimed in claim 1, wherein the coil includes a covering, the inner tube of the coil has a sleeve portion, the outer tube has a butt portion, the butt portion communicates with the sleeve portion and is sleeved with the covering.

3. The gas pyrolysis heating device as described in claim 1, comprising a heat exchange plate and at least one sensor, the heat exchange plate comprising an inner tube and an outer tube of a double-tube structure, the inner tube and the outer tube of the heat exchange plate having a communicating inner and outer circumferential path, one side of the heat exchange plate having an inlet portion communicating with the inner tube and an outlet portion communicating with the outer tube, the other side of the heat exchange plate having an outlet portion communicating with the inner tube and an inlet portion communicating with the outer tube, and the sensor being disposed in the catalyst module or the exhaust portion.

4. The gas pyrolysis heating device as described in claim 3, wherein the inner tube and the outer tube of the coil are made of stainless steel, Hastelloy, or Ingalls alloy, and the inner tube and the outer tube of the heat exchange plate are made of stainless steel, Hastelloy, or Ingalls alloy.

5. The gas pyrolysis heating device as described in claim 3, wherein a plate heat exchanger and an analyzer are externally connected, the outer tube of the heat exchange plate is connected to the plate heat exchanger via its outlet and the inner tube is connected to the analyzer via an exhaust pipe.

6. The gas pyrolysis heating apparatus as claimed in claim 5, wherein the inner tube of the heat exchange plate is connected to the air inlet of the outer sleeve via its air inlet portion, so that the inner tube of the heat exchange plate is connected to the inner tube of the coil.

7. The gas pyrolysis heating device as described in claim 3, externally connected to an application device, a flow path switching mechanism, and a pressure relief valve, wherein the pyrolyzed gas is output from the exhaust section of the outer sleeve to the application device, the flow path switching mechanism selectively guides the pyrolyzed gas to the application device, the outer tube of the heat exchange plate is connected to the exhaust section via its inlet section, and the outer tube of the heat exchange plate is connected to the pressure relief valve via its outlet section for releasing gas in case of abnormal pressure.

8. The gas pyrolysis heating device as described in claim 3, wherein an external gas cylinder and a flow controller are connected, and the inner tube of the heat exchange plate is connected to the gas cylinder and the flow controller via its gas outlet.

9. The gas pyrolysis heating device as claimed in claim 1, wherein the catalyst module includes a housing, three catalyst layers located within the housing, and a cover member located on each of the catalyst layers, each cover member having a plurality of vent holes.

10. The gas pyrolysis heating apparatus as claimed in claim 9, wherein each of the catalyst layers has a plurality of catalysts and the pore size of each gas pore is smaller than a particle size of each catalyst.

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