Fluid circulation type heating device provided with overpressure protection element

Abstract

The present invention relates to a fluid circulation type heating device which circulates fluid by means of heating and cooling and, more particularly, to a fluid circulation type heating device provided with overpressure protection element which can prevent pressure increase of a circulation path of a fluid. The fluid circulation type heating device according to the present invention for achieving the aforementioned purpose comprises a circulation line, a heat radiation member installed on the circulation line, a boiler which heats and expands a fluid, a storage tank which stores the fluid therein and supplies the same to the boiler, a controller which controls the boiler, and a housing which accommodates the boiler and the controller. In addition, the device has an opening formed in fluid communication with the storage tank or the circulation line, and further comprises an overpressure protection element which blocks the opening, wherein the overpressure protection element is configured to prevent fluid from passing through and allowing a vapor of the fluid to pass through, thereby dropping the pressure of the storage tank and the circulation line. The fluid circulation type heating device according to the present invention discharges, to the outside, steam from the inside of a circulation path and does not discharge fluid to the outside, thereby preventing overpressure loaded onto the fluid circulation path of a heating device. In addition, should the heating device fall over, it is possible to prevent fluid from being discharged to the outside. Furthermore, it is possible to prevent external foreign material from being introduced into the circulation path, thereby preventing damages of components or generation of odor, due to contamination of fluid caused from the external foreign material.