The invention discloses an oil gas heat exchanger and spray pipes applicable to the same.The oil gas heat exchanger comprises a heat exchange plate set which is provided with a heat-transfer surface and multiple panels arranged around the heat exchange plate set, the panels comprise a thermal fluid inlet panel and a thermal fluid outlet panel which are oppositely arranged, a thermal fluid inlet is formed in the thermal fluid inlet panel, and a thermal fluid outlet is formed in the thermal fluid outlet panel; the oil gas heat exchanger further comprises an anti-corrosion device arranged on the inner side of the thermal fluid inlet panel and used for spraying a preservative solution to the heat-transfer surface; multiple spray holes are distributed on the semicircular cylinder surface of each spray pipe and used for spraying the preservative solution.According to the oil gas heat exchanger and the spray pipe applicable to the same, due to the fact that the anti-corrosion device is arranged on the thermal fluid inlet panel, effective and targeted key anti-corrosion measures to the local area are achieved, and the anti-corrosion effect of the oil gas heat exchanger is improved.In addition, the corresponding spray pipes are arranged according to the corrosion degrees of different areas of the heat-transfer surface, and the service life of the heat exchanger is prolonged.