Explosion hazard place heat tracing system tail end explosion-proof indication device

A technology of explosion hazard and indicating device, applied in the field of heat tracing system, can solve the problems of insufficient visual range and distance of the tail end indication, high cost, large volume, etc., to save on-site operation and installation time, low cost and small volume Effect

Pending Publication Date: 2018-11-09
BARTEC EXPLOSION PROOF APPLIANCES SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Explosion-proof electrical products used in explosion-hazardous places have special requirements on the anti-aging performance of materials and the impact resistance of the whole machine. In the e

Method used

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  • Explosion hazard place heat tracing system tail end explosion-proof indication device
  • Explosion hazard place heat tracing system tail end explosion-proof indication device
  • Explosion hazard place heat tracing system tail end explosion-proof indication device

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Embodiment Construction

[0016] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0017] Such as figure 1 , figure 2 with image 3 The shown embodiment of the tail end explosion-proof indicating device of the heat tracing system in an explosion hazardous area of ​​the present invention includes a connecting sleeve 1 and a casing 2 provided with a threaded interface, and the connecting sleeve 1 and the casing 2 pass through a pin shaft 6 and The pin lock nut 7 is connected to form a hinge structure, and the connecting sleeve 1 can be flipped and opened at 180° relative to the shell 2 (facilitating wiring), and the shell 2 is provided with a snap-in connection sleeve 1 The hook 5 in the groove realizes fast locking and opening functions. ...

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Abstract

The invention discloses an explosion hazard place heat tracing system tail end explosion-proof indication device comprising a connecting sleeve equipped with a threaded interface and a shell. The connecting sleeve and the shell are connected through a pin shaft and a pin shaft locking nut to form a hinge structure. The connecting sleeve can be overturned for 180 degrees to be opened relative to the shell. An intrinsic safety indication lamp board is connected and installed on a power board through connectors. Indicating lamps are evenly distributed on the intrinsic safety indication lamp boardaccording to the circumference. The intrinsic safety indication lamp board is provided with a transparent cover through threads. The transparent cover is fully filled with transparent glass glue inside so as to perform encapsulation of the intrinsic safety indication lamp board. Intrinsic explosion prevention can be realized according to the intrinsic safety design, and the clear and identifiablepurpose of 360-degree horizontal viewing circumference, 240-degree upper and lower angles and distance of 30m outside can be realized.

Description

technical field [0001] The invention relates to the technical field of heat tracing systems, in particular to an explosion-proof indicating device at the tail end of a heat tracing system in an explosive hazardous location. Background technique [0002] In the electric heat tracing system, it is mainly composed of a temperature controller, a heating cable, a temperature probe, and a tail indicating device. The tail indicating device is used to indicate the power on and off status of the heating cable and fault judgment. At present, the general tail device is composed of an increased safety box and an Ex indicator light element. [0003] Explosion-proof electrical products used in explosion-hazardous places have special requirements on the anti-aging performance of materials and the impact resistance of the whole machine. In the existing scheme, the scheme of using junction box and Ex explosion-proof indicating device is bulky and expensive, and the tail end indicator Visibi...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R31/02
CPCG01R31/00G01R31/50G01R31/58
Inventor 王志敏陈兴华刘忠军胥金刚陈文杰
Owner BARTEC EXPLOSION PROOF APPLIANCES SHANGHAI
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