On-line detection device for temperature sensing detector
A technology for temperature-sensitive detectors and detection devices, applied in measuring devices, thermometer testing/calibration, instruments, etc., can solve problems such as inability to achieve accurate temperature control, large heat loss in air circulation, etc., achieve fast detection speed, low cost, The effect of easy operation
Inactive Publication Date: 2012-10-24
山东众海公共安全器材有限公司
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The disadvantage is that it is not suitable for frequent opening of the box door under high temperature test conditions. Frequent opening of the door will result in inability to achieve accurate temperature control and large heat loss due to air circulation
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[0009] The present invention will be described in detail below with reference to the accompanying drawings. The detection device is designed based on a point-type temperature-sensing detector. This point-type temperature-sensing fire detector uses an NTC-type thermistor as the temperature detection element. The voltage that changes with the temperature can be obtained by dividing the voltage by the resistor. After this voltage is input to the CPU, AD conversion is performed, and the current ambient temperature can be obtained after calculation. The CPU continuously samples the ambient temperature, calculates the current ambient temperature and the heating rate, and reports a fixed temperature fire alarm or a differential temperature fire alarm within a specified time according to the heating rate.
[0010] In order to achieve the purpose of fast online detection, the present invention provides an online detection device for temperature sensing detectors. The temperature monit...
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The invention discloses an on-line detection device for a temperature sensing detector. According to the technical scheme, the on-line detection device for a temperature sensing detector comprises a shell, an mounting seat which is positioned in the shell and used for mounting a detector to be detected, a temperature monitoring part for detecting the temperature in the shell, a temperature raising and temperature adjusting part for simulating a fire temperature raising situation, and an alarm part for feeding back a signal, wherein the detector to be detected is connected with the alarm part; and a power supply supplies power to the alarm part. The invention has the following beneficial effects: the monitoring device is a special detection device for a temperature sensing fire detector; during use, the temperature sensing detector is arranged on the mounting seat; only if the detector sends out an alarm within a preset time, the detector is proved to be qualified; the detection device has the advantages of simple structure, convenience in operation, low cost and high detection speed; particularly, the detection time of a single detector is effectively shortened; and the on-line detection device is applicable to the on-line detection of the temperature sensing detector before leaving a factory.
Description
technical field [0001] The invention relates to the technical field of fire-fighting automatic alarm, in particular to a detection device used for online detection of the quality of a temperature-sensing detector. Background technique [0002] The temperature-sensing fire detectors used in the fire alarm industry need to be inspected and tested for their performance parameters before leaving the factory. Special tooling equipment is used in the test to complete the detection of the temperature-sensing detectors under the temperature conditions simulated by the tooling equipment. The detection equipment traditionally used in the prior art is mainly a closed-loop temperature chamber and a high and low temperature test chamber. The closed-loop thermostat is generally produced by the National Fire Electronic Product Quality Supervision and Inspection Center. The advantage of this thermostat is that it is suitable for applications under various temperature rise rates. High power...
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IPC IPC(8): G01K15/00
Inventor 张学刚张永和张新华
Owner 山东众海公共安全器材有限公司