Gas heater

Abstract

The invention discloses a gas heater which comprises a gas inlet connector, a heat exchanger, an external water way connecting pipeline, a thermostat control valve, a gas outlet connector, a first gasinlet, a first gas outlet, a third gas inlet and a fourth gas outlet. A valve block is detachably mounted on the heat exchanger, and a mounting cavity is formed in the surface of the heat exchanger;and a connecting groove is formed in one side of the interior of the mounting cavity, a connecting plate is clamped in the connecting groove, a connecting ring is detachably mounted on the surface ofthe connecting plate, and a positioning hole is formed in the surface of the connecting ring. According to the scheme, the gas heater utilizes a hydraulic rod to drive a contraction ring to contract to fix gas inlet pipes of different types, so that it is ensured that the gas inlets are suitable for the gas inlet pipes of various types, and the problem that the gas inlets are fixed, the gas inletpipes are different in type, once the gas inlet pipes with the diameters smaller than the gas inlets are replaced to be used, pipe looseness is caused, and the gas conveying efficiency is reduced aresolved.

Description

technical field [0001] The invention relates to the technical field of gas heating, and more specifically, the invention relates to a gas heater. Background technique [0002] At present, the advantage of natural gas is that it is clean and cheap. In order to save energy, gas engines using natural gas combustion as power have attracted more and more attention, especially in the automotive engine industry. Natural gas engines have obvious economic and environmental benefits compared with traditional fuel engines. ; [0003] The temperature of liquefied natural gas (LNG) vaporized or decompressed natural gas (CNG) is relatively low. The temperature of natural gas is related to the flow rate, season, and ambient temperature. It may reach minus 40 to 50 degrees under extremely cold conditions. Between ten degrees and five degrees above zero, the temperature range fluctuates greatly and the temperature is low. In extremely cold regions, it will be below minus thirty degrees, whi...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a gas heater to solve the problem that the gas heater of the prior art uses a hydraulic rod to drive the contraction ring to shrink, and fixes different types of intake pipes to ensure that the gas inlet It is suitable for various types of intake pipes, avoiding that because the gas inlet is fixed, and the models of the intake pipes are different, once the inlet pipe with a diameter smaller than the gas inlet is replaced, the pipe will become loose, which will cause gas The problem of reduced conveying efficiency

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