Gas tank and smoke alarm detection device

Abstract

The utility model provides a gas tank and a smoke alarm detection device. The gas tank is an annular gas tank; a circulating fan is arranged in the annular air box and is used for stirring aerosol particles and air which flow into the annular air box; a mounting bracket for placing a smoke alarm prototype is arranged in the annular gas tank; the installation support is used for arranging the smoke alarm prototype on the installation support in a magnetic attraction mode. The smoke alarm detection device comprises: the gas tank; an axial flow fan; an aerosol generator; an optical densitometer; a high-definition industrial camera; an industrial personal computer; a display and an operation keyboard and mouse; and the PLC is used for executing whether to start the aerosol generator to generate aerosol particles, whether to read the optical densitometer to obtain the current smoke gas concentration in the circulating gas tank, whether to start the circulating fan and whether to start the axial flow fan to discharge a smoke gas mixture in the circulating gas tank according to a command of the industrial personal computer.

Description

TECHNICAL FIELD

[0001] The utility model relates to instrument detection field, specifically, relate to a gas tank and smoke alarm detection device. BACKGROUND

[0002] At present, smoke alarm is the important product of fire control field. Once the fire breaks out, people can be awakened in time through smoke alarm and the like to deal with the sudden disaster and protect life and property. Only the smoke alarm that passes the test can guarantee to realize the corresponding function. The existing smoke alarm testing instrument is heavy, and the operation of the relevant personnel is complex in the testing process. The existing smoke alarm testing instrument can detect only one smoke alarm each time, and the detection efficiency is low.

[0003] Moreover, the shape of the gas tank of the existing alarm tester is usually a cube. Even under the action of the fan, it can still cause poor uniformity of the concentration of the gas in the gas tank, and thus can reduce the accuracy of detecting the alarm, or in other words, even under the action of the fan, the stirring and mixing efficiency of the aerosol particle air mixture is poor.

[0004] Secondly, in the prior art, the alarm to be detected is usually connected with the alarm tester through screws and the like, which causes inconvenience in installing or dismounting the alarm to be detected, and the alarm needs to be installed and dismounted frequently, so that the connecting components of this connection mode can fail.

[0005] Furthermore, in the prior art, the alarms to be detected are usually densely installed in the alarm tester, and the concentration of the gas around the multiple alarms to be detected can be greatly different, and thus the accuracy of detecting the alarm can be reduced.

[0006] In order to solve the above problems, people have been seeking an ideal technical solution. SUMMARY

[0007] The utility model discloses a kind of gas tank and smoke alarm detection device to the deficiency of prior art, to provide a kind of gas tank and smoke alarm detection device.

[0008] To achieve the above object, the technical scheme that the utility model adopts is as follows:

[0009] Firstly, the utility model provides a kind of gas tank for smoke alarm detection device, the gas tank is annular gas tank, is set as the closed area of gas, and is equipped with air inlet and exhaust port;

[0010] The circulation fan is arranged in the lower circulation channel of the annular gas tank, and the circulation fan is used to stir the aerosol particles and air into smoke gas mixture into the annular gas tank;

[0011] The mounting bracket is internally provided with a magnetic component for setting the smoke alarm prototype on the mounting bracket through magnetic attraction.

[0012] The mounting bracket is internally provided with a magnetic component for setting the smoke alarm prototype on the mounting bracket through magnetic attraction.

[0013] Based on the above, the mounting bracket comprises a first mounting plate, a second mounting plate and a connecting strip; the first mounting plate is arranged on the ceiling of the upper circulating channel of the annular air tank; the second mounting plate is arranged in multiple rows and is fixed on the first mounting plate in height through the connecting strip; and the smoke alarm prototype is arranged on the second mounting plate in staggered manner.

[0014] Based on the above, the first mounting plate can be arranged on the ceiling of the upper circulating channel of the annular air tank in a pullable manner.

[0015] Based on the above, the mounting bracket comprises a third mounting plate, and the smoke alarm prototype is arranged on the third mounting plate in staggered manner.

[0016] Based on the above, the third mounting plate can be arranged on the ceiling of the upper circulating channel of the annular air tank in a pullable manner.

[0017] Based on the above, the annular air tank is provided with a dark green organic glass observation window for mounting the smoke alarm prototype and observing the state of the smoke alarm prototype.

[0018] In a second aspect, the utility model provides a smoke alarm detection device, which comprises:

[0019] The air tank;

[0020] The axial flow fan is arranged at the air inlet and the air outlet of the annular air tank respectively.

[0021] The aerosol generator is used for generating aerosol particles and injecting the aerosol particles into the annular air tank through the air inlet of the annular air tank.

[0022] The optical density meter is arranged in the annular air tank and is used for detecting the smoke gas concentration in the annular air tank.

[0023] The PLC controller is communicatively connected with the industrial computer, the aerosol generator, the optical density meter, the circulating fan and the axial flow fan, and is used for executing whether to start the aerosol generator to generate aerosol particles, executing whether to read the optical density meter to obtain the current smoke gas concentration in the circulating air tank, executing whether to start the circulating fan to stir the aerosol particles and air into a smoke gas mixture, and executing whether to start the axial flow fan to exhaust the smoke gas mixture in the circulating air tank according to the command of the industrial computer.

[0024] High-definition industrial camera, connected with industrial computer, used for shooting the image of smoke alarm prototype in the circular gas tank in real time and uploading to the industrial computer;

[0025] Industrial computer, using microcomputer, used for judging the state of the current smoke alarm prototype according to the state of the indicator light of the smoke alarm prototype in the identified smoke alarm prototype image;

[0026] Display and operation key mouse, connected with the industrial computer, used for displaying the real-time image of the smoke alarm prototype, the data of the test process and the final determination result of the test, and used for inputting test parameters.

[0027] Based on the above, the transparent window is arranged at the position below the smoke alarm prototype in the circular gas tank, and the high-definition industrial camera is arranged at the inner ring position of the circular gas tank to shoot the image of the smoke alarm prototype through the transparent window.

[0028] Compared with the prior art, the utility model has substantial characteristics and progress, specifically, the utility model adopts the circular gas tank, the gas can circulate and flow under the action of the circulating fan, the efficiency of stirring and mixing of the aerosol particle air mixture is higher, and compared with the cubic gas tank, the uniformity of the aerosol particle air mixture in the circular gas tank under the action of the circulating fan is higher, and then the accuracy of detecting the alarm can be improved.

[0029] The utility model discloses a smoke alarm prototype and mounting support are connected through magnetic attraction mode, and the mounting and dismounting efficiency is higher, and compared with the mounting and dismounting mode of screw, magnetic attraction mode is more suitable for the scene that the smoke alarm prototype needs to be mounted and dismounted frequently. ACCURATE

[0030] Figure 1 It is the principle diagram of the utility model;

[0031] Figure 2 It is the front structure schematic diagram of the utility model;

[0032] Figure 3 It is the first cross section of the front structure of the utility model;

[0033] Figure 4 It is the second cross section of the front structure of the utility model.

[0034] In the drawing: 1. display screen and operation key mouse;2. brown organic glass observation window;3. exhaust auxiliary air inlet;4. transparent window;5. circular gas tank;6. machine case;7. exhaust port;8. smoke alarm prototype;9. high-definition industrial camera;10. circulating fan;11. air inlet;12. aerosol generator;13. industrial computer;14. second mounting plate;15. connecting strip. DETAILED DESCRIPTION

[0035] The technical solutions of the utility model are described in further detail below through specific embodiments.

[0036] The terms "first", "second", "third", "fourth" and the like in the description and claims of the application and the above drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the terms thus used can be interchanged under appropriate circumstances, and this is merely a distinguishing manner adopted in the description of the embodiments of the application for the objects of the same attribute in the description.

[0037] Embodiment 1

[0038] The embodiment provides a gas tank for a smoke alarm detection device, as shown in Figures 2-4 The gas tank is a ring-shaped gas tank 5, which is arranged as a closed area for gas and is provided with an air inlet 7 and an air outlet 11.

[0039] The lower circulating channel of the ring-shaped gas tank 5 is provided with a circulating fan 10, and the circulating fan 10 is used to stir the aerosol particles and air entering the ring-shaped gas tank 5 into a smoke gas mixture.

[0040] The upper circulating channel of the ring-shaped gas tank 5 is provided with a mounting bracket for placing a smoke alarm prototype 8.

[0041] The mounting bracket is internally provided with a magnetic component for setting the smoke alarm prototype 8 on the mounting bracket in a magnetic manner.

[0042] The mounting bracket comprises a first mounting plate, a second mounting plate and a connecting strip 15, the first mounting plate is arranged on the ceiling of the upper circulating channel of the ring-shaped gas tank, and the connecting strip 15 is used to connect the first mounting plate and the second mounting plate. In order to ensure that the flow of the mixed gas in the ring-shaped gas tank 5 does not affect the test results, the second mounting plate is arranged in multiple rows and is fixed on the first mounting plate in height through the connecting strip, and the smoke alarm prototype is arranged on the second mounting plate in staggered manner.

[0043] It should be noted that, compared with the dense installation of the alarm to be detected in the alarm tester, the utility model sets multiple rows of second mounting plates, and places the smoke alarm prototype on the second mounting plates in staggered manner in height, which can improve the uniformity of the aerosol particle-air mixture to a certain extent, and further improve the accuracy of the smoke alarm detection.

[0044] It should be noted that, compared with the dense installation of the alarm to be detected in the alarm tester, the utility model sets multiple rows of second mounting plates, and places the smoke alarm prototype on the second mounting plates in staggered manner in height, which can improve the uniformity of the aerosol particle-air mixture to a certain extent, and further improve the accuracy of the smoke alarm detection.

[0045] For convenient installation, the annular gas tank 5 is provided with a brown organic glass observation window 2 for installing the smoke alarm prototype and observing the state of the smoke alarm prototype. The first mounting plate can be pulled out and arranged on the ceiling of the upper circulating channel of the annular gas tank 5. The first mounting plate can be pulled out of the annular gas tank 5, and the smoke alarm prototype 8 can be installed on the second mounting plate 14 and then pushed into the annular gas tank 5. The working state of the machine can be observed through the brown organic glass observation window 2.

[0046] In another embodiment: the mounting bracket includes a third mounting plate, and the smoke alarm prototype is arranged on the third mounting plate. The third mounting plate is arranged on the ceiling of the upper circulating channel of the annular gas tank 5. The third mounting plate can be pulled out and arranged on the ceiling of the upper circulating channel of the annular gas tank. The annular gas tank 5 is provided with a brown organic glass observation window 2 for installing the smoke alarm prototype and observing the state of the smoke alarm prototype. The third mounting plate is internally provided with a magnetic component, and the third mounting plate can be pulled out of the annular gas tank 5. The smoke alarm prototype 8 can be installed on the third mounting plate and then pushed into the annular gas tank 5. The working state of the machine can be observed through the brown organic glass observation window 2.

[0047] In this embodiment, the gas tank is designed as an annular gas tank, which can uniformly distribute the smoke gas mixture in the gas tank and circulate uniformly according to the shape of the gas tank, in cooperation with the operation of the circulating fan 10.

[0048] Embodiment 2

[0049] This embodiment provides a smoke alarm detection device, as shown in the figure, which includes a case 6 and further includes: Figures 1-4

[0050] An annular gas tank 5 is arranged on the upper part of the case 6. The annular gas tank 5 is provided with an exhaust auxiliary air inlet 3;

[0051] Axial flow fans are respectively arranged at the air inlet 11 and the exhaust port 7 of the annular gas tank 5;

[0052] An aerosol generator 12 is arranged at the lower part of the case 6, which is used to generate aerosol particles and inject them into the annular gas tank 5 through the air inlet 11 of the annular gas tank 5;

[0053] An optical density meter is arranged in the annular gas tank 5, which is used to detect the concentration of smoke gas inside the annular gas tank;

[0054] ​A PLC controller is arranged at the lower part of the box body of the cabinet 6, and is communicatively connected with the industrial computer 13, the aerosol generator 12, the optical density meter, the circulating fan 10 and the axial flow fan, so as to execute whether to start the aerosol generator 12 to generate aerosol particles according to the command of the industrial computer 13, execute whether to read the optical density meter 3 to obtain the current concentration of smoke gas in the circulating gas tank 5, execute whether to start the circulating fan 10 to stir the aerosol particles and air in the circulating gas tank into a smoke gas mixture, and execute whether to open the axial flow fan to discharge the smoke gas mixture in the circulating gas tank 5;

[0055] A high-definition industrial camera 9 is connected with the industrial computer 13, and is used to capture the image of the smoke alarm prototype in the circulating gas tank 5 in real time and upload the image to the industrial computer;

[0056] The industrial computer 13 is arranged at the lower part of the box body of the cabinet 6, and is a microcomputer, which is used to determine the state of the current smoke alarm prototype 8 according to the state of the indicator light of the smoke alarm prototype 8 in the image of the smoke alarm prototype;

[0057] A display and an operation keyboard and mouse are arranged at the top of the box body of the cabinet 6, and are connected with the industrial computer, which are used to display the real-time image of the smoke alarm prototype 8, the data of the test process, and the final determination result of the test, and are used to input the test parameters.

[0058] In other embodiment, the transparent window 4 is arranged at the position below the smoke alarm prototype 8 in the circulating gas tank 5, and the high-definition industrial camera 9 is arranged at the inner ring position of the circulating gas tank 5 to capture the image of the smoke alarm prototype 8 through the transparent window 4.

[0059] In this embodiment, the industrial computer is used to determine the state of the current smoke alarm prototype 8 according to the state of the indicator light of the smoke alarm prototype 8 in the image of the smoke alarm prototype, and a pre-set trained recognition model is used for machine recognition. For the trained recognition model, it should be noted that there are many existing models that can be selected. Generally, the GMM library in the classifier of the existing halcon machine vision algorithm package can be used to train the sample machine, extract the sample features into the GMM training data, and then compare the image of the sample machine to obtain the determination result.

[0060] The working process of the smoke alarm detection device in this embodiment is as follows:

[0061] The smoke alarm prototype 8 is installed on the mounting bracket, the mounting bracket is pushed into the mounting on the annular gas tank 5 and is opposite to the high-definition industrial camera 9 through the brown organic glass observation window 2, the brown organic glass observation window 2 is closed, the annular gas tank 5 is completely closed, and the tank door of the machine box is closed. The industrial computer 13 is opened, the aerosol generator 12 is opened to generate aerosol particles, and the circulating fan 10 is opened, the aerosol particles flow and mix in the air, and the test is started.

[0062] The industrial computer 13 controls the aerosol generator 12 to gradually generate quantitative aerosol particles according to the test requirements, the circulating fan 10 drives the aerosol particles and air to flow and mix fully, when the smoke gas mixture rises to the alarm point concentration of the smoke alarm prototype 8, the smoke alarm prototype 8 alarms, the alarm lamp flashes at the same time, the industrial computer analyzes the state of the light in the photographed image, judges whether the smoke alarm prototype 8 alarms, and records the machine number corresponding to the smoke alarm prototype which alarms and the alarm concentration value, when all the smoke alarm prototypes alarm or reach the alarm upper limit, the aerosol particle generation is stopped, the industrial computer 13 informs the PLC controller, the axial flow fan is opened and the switch of the exhaust auxiliary air inlet 3 is opened to intake air, the axial flow fan empties the gas in the annular gas tank 5, and a complete test process is completed.

[0063] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones; without departing from the spirit of the technical solutions of the present application, they should be covered in the technical solution range of the present application claimed.

Claims

1. A gas tank for smoke alarm detection device, characterized in that: the gas tank is a ring-shaped gas tank, which is arranged as a closed area for gas and is provided with an air inlet and an air outlet; a circulating fan is arranged in a lower circulating channel of the ring-shaped gas tank, which is used to stir the aerosol particles and air entering the ring-shaped gas tank into a smoke gas mixture; an installation support for placing a smoke alarm prototype is arranged in an upper circulating channel of the ring-shaped gas tank; a magnetic component is arranged inside the installation support, which is used to magnetically fix the smoke alarm prototype on the installation support. The installation support comprises a first installation plate, a second installation plate and a connecting strip; the first installation plate is arranged on the ceiling of the upper circulating channel of the ring-shaped gas tank; the second installation plate is arranged in multiple rows and is fixed on the first installation plate by the connecting strip; the smoke alarm prototype is arranged on the second installation plate in a staggered manner. The first installation plate is arranged on the ceiling of the upper circulating channel of the ring-shaped gas tank in a pullable manner. The installation support comprises a third installation plate, and the smoke alarm prototype is arranged on the third installation plate in a staggered manner. The third installation plate is arranged on the ceiling of the upper circulating channel of the ring-shaped gas tank in a pullable manner.

2. The gas cell for a smoke alarm detector device according to claim 1, characterized in that: The ring-shaped gas tank is provided with a dark green organic glass observation window for installing and observing the state of the smoke alarm prototype.

3. The gas cell for a smoke alarm detector device according to claim 2, wherein: The gas tank of any one of claims 1-6; 4. The gas cell for a smoke alarm detection device of claim 1, wherein: Axial flow fans are respectively arranged at the air inlet and the air outlet of the ring-shaped gas tank; 5. The gas cell for a smoke alarm detector device of claim 4, wherein: An aerosol generator is used to generate aerosol particles and inject them into the ring-shaped gas tank through the air inlet of the ring-shaped gas tank; 6. A gas cell for a smoke alarm detection apparatus according to any one of claims 1 to 5, wherein: An optical density meter is arranged in the ring-shaped gas tank and is used to detect the concentration of smoke gas inside the ring-shaped gas tank; 7. A smoke alarm testing device, characterized by A PLC controller is communicatively connected to an industrial computer, the aerosol generator, the optical density meter, the circulating fan and the axial flow fan, and is used to execute whether to start the aerosol generator to generate aerosol particles, whether to read the optical density meter to obtain the current concentration of smoke gas in the circulating gas tank, whether to start the circulating fan to stir the aerosol particles and air entering the ring-shaped gas tank into a smoke gas mixture, and whether to open the axial flow fan to discharge the smoke gas mixture in the circulating gas tank according to the command of the industrial computer; A high-definition industrial camera is connected to the industrial computer and is used to capture images of the smoke alarm prototype in the circulating gas tank in real time and upload them to the industrial computer; The industrial computer adopts a microcomputer and is used to determine the state of the current smoke alarm prototype according to the state of the indicator light of the smoke alarm prototype in the image; A display and a mouse are connected to the industrial computer and are used to display real-time images of the smoke alarm prototype, data of the test process, and final determination results of the test, and to input test parameters. The ring-shaped gas tank is provided with a transparent window corresponding to the position below the smoke alarm prototype, and the high-definition industrial camera is arranged at the inner ring position of the ring-shaped gas tank to capture images of the smoke alarm prototype through the transparent window. ​ ​ ​ ​ 8. The smoke alarm detection apparatus of claim 7, wherein: ​

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