| 摘要 |
The invention is based on an immersion boiling device which can be used in an explosive atmosphere for heating fluid (liquid) or even gaseous substances, having a bundle (harness, loom) of encapsulated heating elements, between which a thermometer sensor and a capillary are arranged on an anchorage between centrally arranged glove fingers, which thermometer sensor and capillary are connected to heat protection switches, which do not close again, and having an electrical connecting box. Such immersion boiling devices do not permit adequate control and regulation, especially at high temperature, the assembly of the various elements being relatively complicated and leading to a relatively bulky structure. According to the essence of the invention, an immersion boiling device is designed such that the expansion of a fluid forms the basis of the heat protection switches, and such that the protection switches can be used up to temperatures of approximately 450 DEG C, in that transverse connections can be welded to the encapsulated heating elements, and in that the box is mechanically connected to the anchorage for attachment of the encapsulated heating elements, a tubular intermediate element being arranged between the box and the anchorage, to which element the box is screwed. Such an immersion boiling device has the advantage of a good control and regulation capability, especially at high temperature. Assembly is relatively simple and the dimensions are relatively small and convenient.
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