Double-temperature composite sensing fire detector
A technology for fire detectors and housings, applied in the field of dual-temperature composite induction fire detectors, which can solve problems such as temperature rise and loss on the surface of equipment, and achieve the effects of low cost, simple structure, and guaranteed sensitivity
Inactive Publication Date: 2009-02-04
石峥嵘
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Problems solved by technology
Such as transformers, oil tanks or cables and other equipment, the internal heating faults of the equipment are mainly manifested in the rise of body surface temperature. Once the temperature exceeds the acceptable temperature range, it may cause great losses.
Method used
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Embodiment Construction
[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] Such as figure 1 and figure 2 As shown, a dual-temperature composite induction fire detector of the present invention includes a cover 1, a housing 2 and a shield box 15, and a mandrel 8 is arranged inside the housing 2, and a compression spring is sleeved on the mandrel 8. 7. One end of the mandrel 8 is in contact with the cover 1, and the other end is located in the shield box 15 and is provided with a touch plate 13, which is fixed on the mandrel 8 by screws 14. In order to improve the strength, service life and stability of the mandrel 8 , a reinforcing mandrel 11 can be further installed in the mandrel 8 . The first terminal 12 and the second terminal 20 for cooperating with the touch panel 13 are installed in the shield box 15 , and the first terminal 12 and the second terminal 20 are mounted on the mounting base 16 an...
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The invention discloses a dual-temperature composite inductive fire hazard detector, which comprises the following parts: baffling lid, case and guard box, wherein the spindle is set in the case; the compressed spring is jacketed on the spindle; one end of spindle contacts the baffling lid and the other end lies in the box with contact board; the wiring column is set in the guard box to mate the contact board; the through-hole is opened at baffling lid and upper and lower ends of the case symmetrically and separately; the lower and upper racks are set in the through-hole to make the baffling lid and case keep touching; one end of lower and upper racks displays hook shape to connect the baffling lid and the other end possesses pin hole to plug upper and lower fusing pins to connect the upper end lower heat collection pieces separately. The invention displays simple structure, small bulk, cheap cost and convenient assemblage, which can detect the bulk surface of the detected object and external temperature.
Description
technical field [0001] The invention mainly relates to the field of fire detection equipment in fire-fighting equipment, in particular to a dual-temperature composite induction fire detector. Background technique [0002] In the existing fire detection equipment, it can only detect the temperature of the airflow in the measured object or space, and when the temperature exceeds the set value, a fire signal is sent out. However, in today's complex equipment or spaces, fire hazards may be caused by internal failures or external fires. When an internal fault causes a fire hazard, it generally manifests as an increase in body surface temperature; when an external fire occurs, heat is generally transferred through convection or radiation, and the body surface temperature rises relatively slowly, making it difficult to detect. Such as transformers, oil tanks or cables and other equipment, the internal heating faults of the equipment are mainly manifested in the rise of body surfac...
Claims
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IPC IPC(8): G08B17/00G08B17/06
Inventor 石峥嵘刘厚启
Owner 石峥嵘