Shutter test device for flame/fire detectors

Abstract

A shutter test device is provided for determining whether or not detectors detecting flame spectrum at UV and IR wave lengths by forming virtual flame/fire spectrum work, and estimating detection time per milliseconds, estimating the time period in which tubes explode, as well as the time period in which the fire extinguishing system works. The shutter provides or prevents delivery of light source radiations to the detector under control of the control unit. The control unit receives alarm signal generated by detectors detecting sent radiation via cable or wireless estimates response time activated as a result of alarm signal and tests working of the fire extinguishing system subject to said alarm, and the activation period, and calculates the time period of activation.

Claims

1. A testing device for determining whether a fire extinguishing system operates and for determining a time period in which the fire extinguishing system takes action, the fire extinguishing system having a fire extinguishing tube and a detector that detects flame-spectrum generated ultraviolet (UV) wavelengths and infrared (IR) wavelengths, the testing device comprising: an IR or UV light source that emits radiation at different wavelengths that can be detected by the detector of the fire extinguishing system; a shutter positioned in front of said IR or UV light source, said shutter being openable and closable so as to control a reach of the radiation emitted by said IR or UV light source; a control unit adapted to receive an alarm signal generated by the detector that receives the radiation from said IR or UV light source, said control unit determining a response time of the fire extinguishing tube that is activated by the alarm signal, said control unit calculation a time period that the fire extinguishing tube is activated, said control unit connected to said shutter so as to control an opening and a closing of said shutter; a communication unit connected to said control unit and adapted to be connected to the detector and to the fire extinguishing tube so as to perform data exchange between said control unit and the detector and the fire extinguishing tube; and a triggering mechanism connected to said control unit so as to activate said control unit in order to bring said shutter to an open position or a closed position.

2. The testing device of claim 1, further comprising: a screen positioned on a device box and adapted to receive and display data generated by said control unit.

3. The testing device of claim 1, further comprising: a glass positioned on a front lid of said IR or UV light source so as to allow IR or LTV radiation from said IR or UV light source to pass without dispersion therethrough toward the detector.

4. The testing device of claim 3, wherein the glass is formed of calcium fluoride.

5. The testing device of claim 1, wherein said triggering mechanism is a button.

6. The testing device of claim 1, wherein said communication unit is a wireless communications unit.

7. The testing device of claim 2, wherein said communications unit has a connection cable inserted into a connection member on the device box and adapted to be connected to the detector and the fire extinguishing tube.

8. The testing device of claim 1, said control unit comprising: an alarm detection and measurement circuit that measures a time period in which the detector detects the radiation delivered to the detector from said IR or UV light source and a time period that the fire extinguishing tube is activated in response to the alarm signal; and a shutter driver circuit connected to said shutter so as to control the opening and the closing of said shutter upon triggering by said trigger mechanism.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

(1) FIG. 1 is an exploded view of the test device of the invention.

(2) FIG. 2 is a perspective view of the test device of the invention in mounted form.

(3) FIG. 3 is front and profile view of test device of the invention.

(4) The drawings are not necessarily scaled and the details not necessary for understanding the present invention might have been neglected. In addition, the components which are equivalent to a great extent at least or have equivalent functions at least have been assigned the same number.

DESCRIPTION OF PART REFERENCES

(5) 1. Test device 2. Handle 3. Triggering mechanism 4. Screen 5. Device box 6. Connection member 7. Alarm detection and measurement circuit 8. IR light source 9. UV light source card 10. UV light source 11. Shutter 12. Shutter driver circuit 13. Front Lid 14. Glass 15. Lock

DETAILED DESCRIPTION OF THE INVENTION

(6) In this detailed description, the preferred embodiments of the invention have been described in a manner not forming any restrictive effect and only for purpose of better understanding of the matter.

(7) The test device (1) of the invention controls whether or not detectors detecting flame spectrum generating at UV (ultraviolet) and IR (Infrared) wavelengths work, as well as estimates the time period in which tubes become active and total system activation as a consequence thereof and comprises following components: IR and/or UV light sources making radiation at different wavelengths that can be detected by sensors in the detectors to be tested and having flame spectrum; a shutter (11) located in front part of light sources, which controls reach of radiations of light sources to detectors by opening and closing; a unit receiving alarm signal generated by detectors perceiving sent rays, determining response time period of fire tubes activated as a result of alarm signal, calculating total system (detector and tube) activation time subject to said alarm and activation periods; a triggering mechanism (3) of button etc. activating/deactivating control unit, bringing shutter (11) to open/close position.

(8) In an embodiment of the invention, a screen (4) located on device box (5) receives data obtained in the control unit and displays to the user.

(9) In a preferred embodiment of the invention, IR light source (8) and/or UV light source (10) is used as light source. Said light sources are located on IR light source card and UV light source card (9) and driven by said cards.

(10) In a preferred embodiment of the invention, the control unit comprises shutter driver circuit (12) in device box (5). Triggering mechanism (3) which is a button located on preferably handle (2) controls shutter (11) by means of shutter driver circuit (12) when alerted. Lock (15) located in front section of front lid (13) fixes light sources to device box (5). The device box (5) is made from fireproof material and thus protects components provided therein against fire and external factors.

(11) In a preferred embodiment of the invention, said control unit also comprises an alarm detection and measurement circuit (7). The circuit (7) determines the time period in which detector detects radiations transmitted from IR and UV sources (8, 10) and reaching it and gives alarm by means of signals given by wire connection and/or wireless communication unit (Wifi, Bluetooth etc.)

(12) provided on the connection member (6).

(13) In a preferred embodiment of the invention, connection member (6) is used as connection point providing connection of shutter test device (1) to detector and tubes in fire extinguishing system to receive data.

(14) The alarm detection and measurement circuit (7) of the invention measures the time period in which tubes are activated upon alarm response. Activation of tubes is the discharge of gas therein in line with the received signal as a result of fire detection. The signal is transmitted to the test device (1) via cable or wireless.

(15) Operating principle of the test device (1) is as follows: shutter driver circuit (12) is activated by triggering mechanism (3) alerted by audio or physical interaction and the shutter (1) opens and passage of IR and UV light sources (8, 10) located behind it through obstacle and preferably passed through CaF2 glass (14) and reach the detectors. Upon activation of the triggering mechanism (3), the control unit takes the shutter (11) opening time as starting point and starts to receive data from detectors and tubes where connected. These data contain the information of the time period in which the detectors response to the radiations obtained by alarm detecting and measurement circuit (7) in the control unit and sent to light sources and the response to said radiations by detectors and the time in which tubes are activated. The said data are of the capability to detect millisecond periods and calculates the time period in milliseconds in which detectors detect the radiation dispersed upon opening of shutter (11) by alarm detection and measurement circuit (7), and the time in milliseconds in which tubes are activated. By means of such calculations it is tested whether detectors run or run in the intended level, and detectors are put into maintenance or continued to be used according to data read in LCD screen (4).