An addressable location type very early smoke particle fire detector demonstration box

Abstract

The utility model discloses a kind of addressable positioning type extremely early pyrolysis particle fire detector demonstration box, it is characterized by: including box, fixed in the frame of box inner wall, and with the detection module, interactive module, control module and sampling module connected with frame;Detection module includes cloud chamber type fire detector and the host computer communication connection thereof;Sampling module includes at least two reaction bins;Interactive module includes the airflow line of the communication of reaction bin and cloud chamber type fire detector;Control module includes box switch, the reaction bin switch of control reaction bin, and electromagnetic valve on airflow line is set.Based on the utility model, by setting at least two reaction bins, multiple reaction bins are communicated with cloud chamber type fire detector by airflow line capable of controlling opening and closing, the purpose of demonstrating addressing positioning function is realized.

Description

Technical Field

[0001] This utility model relates to the field of fire detection technology, specifically to an addressable positioning type early-stage pyrolysis particle fire detector demonstration box. Background Technology

[0002] Early-stage pyrolysis particle fire detectors are used for detecting very early-stage fires. To demonstrate their effectiveness, demonstrations are often required in different locations. However, fire detectors are typically suspended from ceilings or other high-rise buildings, making such demonstrations extremely inconvenient. Therefore, our company has designed a portable fire detector demonstration case. Furthermore, to further convince customers of the effectiveness of our fire detectors, it is necessary to demonstrate their accuracy and sensitivity—that is, their ability to accurately locate the specific location of a fire (room, factory, pipeline, etc.). Therefore, a demonstration case demonstrating the fire detector's addressing and location capabilities is required. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an addressable and locating early-stage pyrolysis particle fire detector demonstration box. By setting up at least two reaction chambers, and having multiple reaction chambers connected to a cloud chamber type fire detector through airflow pipes that can be controlled to open and close, the purpose of demonstrating the addressable and locating function is achieved.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an addressable positioning type very early pyrolysis particle fire detector demonstration box, characterized in that: it includes a box body, a frame fixed to the inner wall of the box body, and a detection module, an interaction module, a control module and a sampling module connected to the frame body;

[0005] The detection module includes a cloud chamber type fire detector and a main unit that is connected to it for communication;

[0006] The sampling module includes at least two reaction chambers;

[0007] The interaction module includes an airflow duct that connects the reaction chamber to the cloud-type fire detector;

[0008] The control module includes a housing switch, a reaction chamber switch for controlling the reaction chamber, and a solenoid valve installed on the gas flow pipeline; a rear cover is fixedly connected to the rear end of the housing by bolts, and a power supply is installed on the rear cover; the power supply is connected to the housing switch, the housing switch is electrically connected to the reaction chamber switch, and the solenoid valve is electrically connected to the reaction chamber switch.

[0009] Furthermore, the reaction chamber switch is located outside the reaction chamber, and a digital temperature controller connected to the reaction chamber switch is also installed outside the reaction chamber. Inside the reaction chamber, there are thermocouples and heating rods that are respectively connected to the digital temperature controller.

[0010] Furthermore, the interaction module also includes an external pipeline connecting the cloud-type fire detector to the outside of the enclosure; a through-panel gas pipe connector is provided on the enclosure, and the external pipeline is connected to the through-panel gas pipe connector.

[0011] Furthermore, the interaction module also includes an airflow convergence pipe that connects to all airflow ducts at one end and to the cloud chamber type fire detector at the other end.

[0012] Furthermore, the frame includes a front panel; a transparent reaction observation window is provided on the front face of the reaction chamber; the reaction observation window is hinged to the front panel; and the front panel is provided with a display screen connected to the main unit.

[0013] Furthermore, the rear end face of the rear cover is provided with a fixing structure for increasing the reaction chamber; the fixing structure includes a T-shaped strip that is detachably and fixedly installed on the rear end face of the rear cover, a sliding support strip that is slidably connected to the T-shaped strip, and an I-beam fixing plate that is slidably connected to the front end face of the sliding support strip; the front end face of the I-beam fixing plate is detachably and fixedly connected to the reaction chamber.

[0014] Furthermore, the T-shaped strip has several fixed screw holes spaced apart along its length, and the sliding support strip has support screw holes corresponding to the fixed screw holes along its length. The fixed screw holes are connected to the support screw holes by bolts. The rear end face of the I-beam fixing plate has fixing plate screw holes corresponding to the support screw holes. The support screw holes are connected to the fixing plate screw holes by bolts.

[0015] Furthermore, after the sliding support bar slides out, a pad is provided at the rear end face of the T-shaped bar parallel to the sliding support bar; the pad has a pad screw hole corresponding to the fixing screw hole, and the pad screw hole is connected to the fixing screw hole by bolts, and the rear end face of the pad is flush with the rear end face of the sliding support bar.

[0016] The beneficial effects of this utility model are as follows: by setting at least two reaction chambers, and connecting multiple reaction chambers to a cloud chamber type fire detector through airflow pipes that can be controlled to open and close, the reactants in multiple reaction chambers are ignited or not ignited, or ignited simultaneously or at different times. Then, the air is extracted and detected in different reaction chambers in sequence. The reaction chamber that produces pyrolysis particles is located through the display of the fire detector, thus achieving the purpose of displaying the addressing and positioning function. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the reaction chamber installation.

[0018] Figure 2 This is a schematic diagram of the internal structure of the demonstration box;

[0019] Figure 3 A schematic diagram of the front end of the fixed structure of the external reaction chamber;

[0020] Figure 4This is a schematic diagram of the rear end face of the fixed structure of the external reaction chamber;

[0021] Figure 5 This is a flowchart of the demonstration box's workflow.

[0022] In the diagram: 1. Frame; 2. Front panel; 3. Cable heating reaction observation window; 4. Circuit board heating reaction observation window; 5. Cabinet switch; 6. Through-board air pipe connector; 7. Circuit board heating reaction chamber; 8. Circuit board heating switch; 9. Digital temperature controller; 10. Main unit; 11. Rear cover; 12. Power supply; 13. Cabinet; 14. Solenoid valve; 15. Display screen; 16. Cable heating switch; 17. Cable heating reaction chamber; 18. T-shaped strip; 19. Sliding support strip; 20. T-slot; 21. I-beam fixing plate; 22. Pad; 23. Pad screw hole; 24. Fixing screw hole; 25. Support strip screw hole; 26. Bolt; 27. Reaction chamber; 28. Airflow pipeline. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] The directional terms mentioned in this utility model, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this utility model, and are not intended to limit this utility model.

[0025] Example:

[0026] like Figures 1-5 As shown, an addressable positioning type early pyrolysis particle fire detector demonstration box includes a box body 13, a frame 1 fixed to the inner wall of the box body 13 by bolts or snap-fit, and a detection module, an interaction module, a control module and a sampling module connected to the frame 1.

[0027] The detection module includes a cloud chamber type fire detector and a host 10 that is connected to it in communication; the host 10 has a fire alarm function.

[0028] The sampling module includes at least two reaction chambers 27; all reaction chambers 27 have similar constructions, and the internal and external connections of the reaction chambers 27 located inside the housing 13 are identical.

[0029] The interaction module includes an airflow duct 28 that connects the reaction chamber 27 to the cloud chamber type fire detector;

[0030] The control module includes a housing switch 5, a reaction chamber switch for controlling the reaction chamber 27, and a solenoid valve 14 installed on the airflow pipe 28; a rear cover 11 is fixedly connected to the rear end face of the housing 13 by bolts, and a power supply 12 is installed on the rear cover 11; the power supply 12 is connected to the housing switch 5, the housing switch 5 is electrically connected to the reaction chamber switch, and the solenoid valve 14 is electrically connected to the reaction chamber switch.

[0031] The chamber 13 and frame 1 are made of anti-static metal, and the reaction observation window is made of acrylic panel.

[0032] like Figure 1 The upper part defines the front face of the housing 13; the housing 13 is placed as follows during use. Figure 1 As shown.

[0033] The reaction chamber switch is located outside the reaction chamber 27. A digital temperature controller 9, which is connected to and controlled by the reaction chamber switch, is also located outside the reaction chamber 27. A thermocouple and a heating rod, which are respectively connected to the digital temperature controller 9, are located inside the reaction chamber 27.

[0034] The interactive module also includes an external pipe that connects the cloud chamber type fire detector to the outside of the housing 13 for extracting air from the outside of the housing 13; the housing 13 is provided with several through-plate air pipe joints 6, and the external pipe and the airflow pipe 28 outside the housing 13 are connected to the through-plate air pipe joints 6; the housing 13 is provided with a through slot corresponding to the housing switch 5, so that when the frame 1 is placed inside the housing 13, it is convenient to press the housing switch 5.

[0035] Each reaction chamber 27 is equipped with an airflow duct 28 connected to a cloud chamber type fire detector. The interaction module also includes an airflow convergence duct that is connected at one end to all the airflow ducts 28 and at the other end to the cloud chamber type fire detector.

[0036] The frame 1 includes a front panel 2; a transparent reaction observation window is provided on the front surface of the reaction chamber 27; the reaction observation window is hinged to the front panel 2; the front panel 2 is provided with a display screen 15 connected to the main unit 10; the display screen 15 uses a 7-inch resistive liquid crystal screen to observe the particle concentration value measured by the detector in real time. It can also view the equipment log, set parameters, etc.

[0037] When the cable burns inside reaction chamber 27, the reaction observation window is... Figure 2 The observation window 3 for the heating reaction in the middle cable, and the reaction chamber 27 are... Figure 2 The reaction chamber 17 is heated by a medium-voltage cable, and the reaction chamber switch is... Figure 2 The cable heating switch 16 is in the middle; when the circuit board inside the reaction chamber 27 is burning, the reaction observation window is... Figure 2The observation window 4 for the heating reaction on the circuit board, and the reaction chamber 27 are... Figure 2 The circuit board heats the reaction chamber 7, and the reaction chamber switch is... Figure 2 The circuit board heating switch 8 is in the middle; however, regardless of whether it is a burning cable, a circuit board, or other burning material, the location of the reaction chamber 27 is not limited to Figure 2 .

[0038] The rear end face of the rear cover 11 is provided with a fixing structure for adding the reaction chamber 27. The fixing structure includes a T-shaped strip 18 that is detachably fixed to the rear end face of the rear cover 11, a sliding support strip 19 with a T-shaped groove 20 and slidably connected to the T-shaped strip 18 through the T-shaped groove 20, and an I-beam fixing plate 21 that is slidably connected to the front end face of the sliding support strip 19 through the T-shaped groove 20. The front end face of the I-beam fixing plate 21 is detachably fixed to the reaction chamber 27. The sliding support strip 19 is located on the rear end face of the T-shaped strip 18. In this design, the detachable fixing method generally adopts bolt fixing.

[0039] The T-shaped strip 18 has a plurality of fixing screw holes 24 spaced apart along its length. The sliding support strip 19 has support screw holes 25 corresponding to the fixing screw holes 24 along its length. The fixing screw holes 24 are connected to the support screw holes 25 by bolts 26, thereby connecting the T-shaped strip 18 and the sliding support strip 19. The rear end face of the I-beam fixing plate 21 has fixing plate screw holes corresponding to the support screw holes 25. The support screw holes 25 are connected to the fixing plate screw holes by bolts 26, thereby fixing the I-beam fixing plate 21 and the sliding support strip 19.

[0040] After the sliding support bar 19 slides out, a pad 22 is provided at the rear end face of the T-shaped bar 18 parallel to the sliding support bar 19. The pad 22 has a pad screw hole 23 corresponding to the fixing screw hole 24. The pad screw hole 23 is connected to the fixing screw hole 24 by bolts 26 to fix the pad 22 and the T-shaped bar 18. The rear end face of the pad 22 is flush with the rear end face of the sliding support bar 19. After the reaction chamber 27 is added externally, the pad 22 is installed to stabilize the bottom of the box 13. All screw hole positions have corresponding grooves to place the bolt nuts and prevent the nuts from protruding and affecting the fixing or sliding between the pad 22, the sliding support bar 19, the T-shaped bar 18 and the I-beam fixing plate 21.

[0041] Work process: such as Figure 5 As shown, several reaction chambers 27 are first preset. In these reaction chambers 27, reactants are selected to be ignited and reactants are not ignited respectively. In this embodiment, two reaction chambers 27 are selected to be used. The reactants are not ignited in sampling area 1 and the reactants are ignited in sampling area 2.

[0042] Then, switch 5 is turned on to power the demonstration box power supply 12. Switches 1 and 2 are in the energized state. At this time, the cloud chamber type fire detector draws in ambient gas from the outside environment through the external pipe. When demonstrating the detection of the concentration of pyrolysis particles generated by the heated object 1, taking sampling area 1 as an example: first, switch 1 is closed. At this time, the digital temperature controller 1 starts to control the heating rod to heat up. The thermocouple feeds back information to the digital temperature controller 1. At the same time, the solenoid valve 14 controls the airflow pipe 1 to open, and the cloud chamber type fire detector starts to evacuate the sampling area 1. As the temperature of the heating rod rises, the heated object 1 also begins to heat up. When the temperature of the heated object 1 reaches a certain temperature, pyrolysis particles are generated. The pyrolysis particles are detected by the cloud chamber type fire detector through the airflow pipe 1. The detector then completes the detection of airflow in sampling area 1. Next, switch 1 is turned off, and the cloud chamber type fire detector begins to extract air from outside the chamber 13. After the particle concentration drops to a stable level, switch 2 can be closed to perform gas detection in sampling area 2. After the gas detection in sampling area 2 is completed, switch 2 is turned off, and the cloud chamber type fire detector begins to extract air from outside the chamber 13 until the particle concentration drops to a stable level. During this demonstration, the observation window is set to be transparent, allowing customers to observe whether there is combustion inside and then compare the detection results of the fire detector to see if the detector's detection results correspond to the situation in the reaction chamber. This allows them to judge the accuracy of the detection and thus achieve the purpose of demonstrating the addressing and positioning function.

[0043] When more reaction chambers 27 are needed for comparative demonstration, the sliding support bar 19 extends horizontally from the rear end face of the housing 13. Then, the sliding support bar 19 is fixed to the T-shaped bar 18 using bolts 26. Several I-beam fixing plates 21 are taken and slid into the sliding support bar 19 from the end of the sliding support bar 19. After sliding to the appropriate position, the I-beam fixing plates 21 are fixed to the sliding support bar 19 using bolts 26. Then, the reaction chamber 27 is fixed on the I-beam fixing plates 21.

[0044] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A demonstration box for an addressable, location-based early-stage pyrolysis particle fire detector, characterized in that: It includes a housing (13), a frame (1) fixed to the inner wall of the housing (13), and a detection module, an interaction module, a control module and a sampling module connected to the frame (1); The detection module includes a cloud chamber type fire detector and a host (10) that is connected to it in communication. The sampling module includes at least two reaction chambers (27); The interaction module includes an airflow duct (28) that connects the reaction chamber (27) to the cloud chamber type fire detector. The control module includes a housing switch (5), a reaction chamber switch for controlling the reaction chamber (27), and a solenoid valve (14) installed on the airflow pipe (28); a rear cover (11) is fixedly connected to the rear end face of the housing (13) by bolts, and a power supply (12) is installed on the rear cover (11); the power supply (12) is connected to the housing switch (5), the housing switch (5) is electrically connected to the reaction chamber switch, and the solenoid valve (14) is electrically connected to the reaction chamber switch.

2. The addressable positioning type very early pyrolysis particle fire detector demonstration box according to claim 1, characterized in that: The reaction chamber switch is located outside the reaction chamber (27). A digital temperature controller (9) connected to the reaction chamber switch is also located outside the reaction chamber (27). A thermocouple and a heating rod connected to the digital temperature controller (9) are located inside the reaction chamber (27).

3. The addressable positioning type very early pyrolysis particle fire detector demonstration box according to claim 1, characterized in that: The interactive module also includes an external pipeline that connects the cloud chamber type fire detector to the outside of the box (13); the box (13) is provided with a through-plate gas pipe connector (6), and the external pipeline is connected to the through-plate gas pipe connector (6).

4. The addressable positioning type very early pyrolysis particle fire detector demonstration box according to claim 1, characterized in that: The interaction module also includes an airflow convergence pipe that is connected at one end to all the airflow pipes (28) and at the other end to the cloud chamber type fire detector.

5. The addressable positioning type very early pyrolysis particle fire detector demonstration box according to claim 1, characterized in that: The frame (1) includes a front panel (2); the front end of the reaction chamber (27) is provided with a transparent reaction observation window; the reaction observation window is hinged to the front panel (2); the front panel (2) is provided with a display screen (15) connected to the host (10).

6. The addressable positioning type very early pyrolysis particle fire detector demonstration box according to claim 1, characterized in that: The rear end face of the rear cover (11) is provided with a fixing structure for adding a reaction chamber (27); the fixing structure includes a T-shaped strip (18) that is detachably fixedly installed on the rear end face of the rear cover (11), a sliding support strip (19) that is slidably connected to the T-shaped strip (18), and an I-shaped fixing plate (21) that is slidably connected to the front end face of the sliding support strip (19); the front end face of the I-shaped fixing plate (21) is detachably fixedly connected to the reaction chamber (27).

7. The addressable positioning type very early pyrolysis particle fire detector demonstration box according to claim 6, characterized in that: The T-shaped strip (18) has a plurality of fixed screw holes (24) spaced apart along its length. The sliding support strip (19) has support screw holes (25) corresponding to the fixed screw holes (24) along its length. The fixed screw holes (24) are connected to the support screw holes (25) by bolts (26). The rear end face of the I-beam fixing plate (21) has a fixing plate screw hole corresponding to the support screw hole (25). The support screw hole (25) is connected to the fixing plate screw hole by bolts (26).

8. The addressable positioning type very early pyrolysis particle fire detector demonstration box according to claim 7, characterized in that: When the sliding support bar (19) slides out, a pad (22) is provided at the rear end face of the T-shaped bar (18) parallel to the sliding support bar (19); the pad (22) is provided with a pad screw hole (23) corresponding to the fixing screw hole (24), and the pad screw hole (23) is connected to the fixing screw hole (24) by a bolt (26), and the rear end face of the pad (22) is flush with the rear end face of the sliding support bar (19).

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