a gas heater

Abstract

The invention discloses a gas heater, comprising an air inlet joint, a heat exchanger, an external water connection pipeline, a thermostat control valve, an air outlet joint, a first gas inlet, a first gas outlet, a third gas inlet and For the fourth gas outlet, the valve block can be detachably installed on the heat exchanger. There is an installation cavity on the surface of the heat exchanger, and a connecting groove is opened on one side of the inside of the installation cavity. A connecting plate is clamped inside the connecting groove. A connecting ring is detachably installed on the surface, and a positioning hole is opened on the surface of the connecting ring. In the above scheme, the gas heater uses the hydraulic rod to drive the contraction ring to shrink, and fixes different types of intake pipes, so as to ensure that the gas inlet is suitable for various types of intake pipes, avoiding the fact that the gas inlet is fixed, and the model of the intake pipe Different, so once the inlet pipe with a diameter smaller than that of the gas inlet is replaced, it will cause the pipe to loosen, which will lead to the problem of reduced gas delivery efficiency.

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...

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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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