Gas interference simulation device and method for testing gas alarm

Abstract

The invention discloses a gas interference simulation device and method for testing a gas alarm. The gas interference simulation device comprises an equipment box; the rotating seat is rotationally arranged in the equipment box, a driving part for driving the rotating seat to rotate at a fixed angle is mounted on the inner wall of the equipment box, and a plurality of placing holes are formed in the top of the rotating seat at equal intervals; the interference gas storage bottle is arranged in the placing hole, and a sealing plug for blocking an outlet of the interference gas storage bottle is arranged in the interference gas storage bottle; the experiment box is used for installing an alarm on fuel gas, the experiment box is arranged above the rotating seat, the bottom of the experiment box is provided with a gas inlet channel and a plurality of placing holes for placing interference gas storage bottles, and different interference gases and fuel gas can be mixed and injected into different gas storage bottles; according to the design, the device can simulate various different gas interference scenes, the reaction of the gas alarm under different interference gases is comprehensively tested, and the flexibility and comprehensiveness of the test are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas alarm testing, in particular to a gas interference simulation device and method for gas alarm testing. BACKGROUND

[0002] When testing a gas alarm, using interference gas for simulation is a common means to verify the anti-interference ability, false alarm probability and selectivity (i.e. only responding to target gas, not being triggered by other gases) of the alarm. The existing experimental equipment needs to connect the gas with the corresponding equipment one by one, cannot simulate multiple different gas interference scenarios, and cannot comprehensively test the reaction of the gas alarm under different interference gases, reducing the flexibility and comprehensiveness of the test. SUMMARY

[0003] The purpose of the present application is to provide a gas interference simulation device and method for gas alarm testing to solve the problems raised in the background.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a gas interference simulation device for gas alarm testing, comprising:

[0005] a device box;

[0006] a rotating seat, which is rotatably arranged in the interior of the device box, a driving portion for driving the rotating seat to rotate at a fixed angle is installed on the inner wall of the device box, and a plurality of placement holes are equidistantly formed in the top of the rotating seat;

[0007] an interference gas storage cylinder, which is arranged in the placement hole, and a sealing plug for sealing the outlet of the interference gas storage cylinder is arranged in the interior of the interference gas storage cylinder;

[0008] an experimental box for gas installation alarm, which is arranged above the rotating seat, and an air inlet channel is installed at the bottom of the experimental box;

[0009] a pushing portion, which is arranged below the rotating seat, and the pushing portion comprises an electromagnet arranged in a lifting manner, which is used for driving the sealing plug to separate from the interference gas storage cylinder while the interference gas storage cylinder is lifted to cooperate with the air inlet channel.

[0010] Preferably, a box door is arranged on one side of the device box, and an odor sensor is installed in the interior of the device box for detecting whether there is gas leakage.

[0011] Preferably, the device further comprises an exhaust assembly, which comprises an exhaust pipe, the exhaust pipe has a Y-shaped structure, two joints at one end of the exhaust pipe are respectively connected with the device box and the experimental box, and an electromagnetic valve is fixedly connected to the middle of each joint.

[0012] The top of the equipment box is fixedly connected with a fan, and the input end of the fan is connected with the end of the exhaust pipe.

[0013] The driving part comprises a rotating shaft rotatably arranged in the middle of the equipment box, the rotating seat is fixedly connected to the top of the rotating shaft, the inside of the equipment box is fixedly connected with a servo motor, and the servo motor is in transmission connection with the rotating shaft through a spur gear set.

[0014] The bottom of the rotating seat and the position corresponding to the placement hole are fixedly connected with a support ring.

[0015] The pushing part further comprises a support frame, the support frame is fixedly connected to the inside of the equipment box, the middle of the support frame is fixedly connected with a double-shaft air cylinder, the top of the double-shaft air cylinder is fixedly connected with a lifting rod, the lifting rod is in sliding connection with the support frame, and the electromagnet is fixedly connected to the top of the lifting rod.

[0016] The inside of the interference gas cylinder is fixedly connected with a limiting ring at one end, the middle of the limiting ring is in sliding connection with a pulling rod, a spring is arranged between the end of the pulling rod and the limiting ring, the sealing plug is fixedly connected to the outside of the pulling rod and below the limiting ring, and the bottom of the pulling rod is fixedly connected with an iron sheet matched with the electromagnet.

[0017] The inside of the experiment box is provided with a lifting plate which is lifted and lowered, the top of the experiment box is fixedly connected with an electric push rod for driving the lifting plate to be lifted and lowered, the top of the lifting plate is fixedly connected with a sliding rod in sliding connection with the experiment box, the bottom of the lifting plate is fixedly connected with a mounting plate, a mounting hole is formed in one side of the experiment box and at the position corresponding to the mounting plate, and one side of the mounting hole is rotatably connected with a sealing door.

[0018] A disturbance simulation method, applying the gas disturbance simulation device for a gas alarm tester, comprises the following steps:

[0019] Different proportions and types of interference gas are mixed with gas and then loaded into the interference gas cylinder, and the interference gas cylinder is placed in the placement hole of the rotating seat.

[0020] The driving part drives different interference gas cylinders to correspond to the air inlet channel at the bottom of the experiment box, the air in the interference gas cylinder is placed in the air inlet channel, and the performance of the alarm is judged through the reaction of the alarm in the experiment box.

[0021] Compared with the prior art, the present application has the beneficial effects that: by equipping the servo motor with an encoder, the different support ring centers on the rotating seat can be accurately corresponded to the electromagnet through the straight gear set driving the rotating shaft to rotate at a fixed angle; the automatic positioning of the interference gas cylinder is realized, manual adjustment is not needed, the convenience of test operation is improved, the positioning accuracy is ensured, and the required interference gas cylinder can be accurately selected for each test; the double-shaft air cylinder drives the lifting rod and the electromagnet to rise, the interference gas cylinder is lifted and inserted into the air inlet channel to realize the communication, the electromagnet is electrified to attract the iron sheet, the sealing plug is pulled open by pulling the rod, and the gas enters the experimental box; after power-off, the spring pushes the pulling rod to reset, and the sealing plug reseals the interference gas cylinder; a plurality of placing holes are arranged for placing the interference gas cylinder, different interference gases can be mixed with the gas and injected into different gas cylinders; this design enables the device to simulate a plurality of different gas interference scenes, comprehensively tests the reaction of the gas alarm under different interference gases, and improves the flexibility and comprehensiveness of the test; the lifting plate in the experimental box is driven by the electric push rod, can drive the mounting plate to lift, and thus adjusts the mounting height of the gas alarm and the internal space of the experimental box; this setting can meet the test requirements of different types and specifications of gas alarms, and can simulate the working conditions of the gas alarm in different space environments, further enhancing the flexibility of the test. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the present application;

[0023] Figure 2 is a structural schematic diagram of the internal structure of the device box of the present application;

[0024] Figure 3 is a structural schematic diagram of the rotating shaft of the present application;

[0025] Figure 4 is a structural schematic diagram of the support frame of the present application;

[0026] Figure 5 is a structural schematic diagram of the internal structure of the interference gas cylinder of the present application;

[0027] Figure 6 is a structural schematic diagram of the mounting hole of the present application;

[0028] Figure 7 is a structural schematic diagram of the internal structure of the experimental box of the present application.

[0029] In the figure: 1, equipment box; 2, rotating seat; 3, support ring; 4, rotating shaft; 5, straight gear set; 6, servo motor; 7, interference gas cylinder; 8, limit ring; 9, pull rod; 10, spring; 11, sealing plug; 12, iron sheet; 13, support frame; 14, double-shaft air cylinder; 15, lifting rod; 16, electromagnet; 17, experiment box; 18, odor sensor; 19, lifting plate; 20, mounting plate; 21, electric push rod; 22, exhaust pipe; 23, fan; 24, mounting hole; 25, sealing door; 26, sliding rod; 27, electromagnetic valve; 28, air inlet channel; 29, box door. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0031] Please refer to Figures 1-7 The present application provides a technical solution: a gas interference simulation device for testing a gas alarm, comprising: an equipment box 1; a rotating seat 2 is arranged inside the equipment box 1, a driving part for driving the rotating seat 2 to rotate at a fixed angle is mounted on the inner wall of the equipment box 1, and a plurality of placement holes are equidistantly formed on the top of the rotating seat 2; an interference gas cylinder 7 is placed in the placement hole, and a sealing plug 11 for blocking the outlet of the interference gas cylinder 7 is arranged inside the interference gas cylinder 7; an experiment box 17 for installing a gas alarm is arranged above the rotating seat 2, the experiment box 17 is fixedly connected with the equipment box 1, and an air inlet channel 28 in communication with the experiment box 17 is mounted on the bottom of the experiment box 17; a pushing part is arranged below the rotating seat 2, and the pushing part comprises an electromagnet 16 arranged in a lifting manner, which is used to drive the sealing plug 11 to separate from the interference gas cylinder 7 while the interference gas cylinder 7 is lifted to cooperate with the air inlet channel 28.

[0032] It should be noted that in the present embodiment, the controller and the corresponding operation panel are provided, different interference gases are mixed with the fuel gas and injected into different interference gas storage bottles 7, so that the internal pressure of the interference gas storage bottles 7 is greater than the internal pressure of the experimental box 17, the gas in the interference gas storage bottles 7 is easily injected into the experimental box 17, the interference gas storage bottles 7 are placed in the placement holes, the fuel gas alarm to be detected is installed in the experimental box 17, the corresponding interference gas storage bottles 7 are rotated to the bottom of the experimental box 17 by rotating the rotating seat 2, the gas in the corresponding interference gas storage bottles 7 is injected into the experimental box 17 by the pushing part, and the reaction of the fuel gas alarm is observed in this way. After the detection is completed, the gas in the experimental box 17 is discharged, and the gas in the interference gas storage bottles 7 is injected into the experimental box 17 in sequence to detect whether false alarms occur, the response time and the recovery time, and the difference in alarm response to the target gas, so as to judge which gas will interfere with the use of the fuel gas alarm.

[0033] In one embodiment, one side of the equipment box 1 is rotatably provided with a box door 29, and an odor sensor 18 is installed in the equipment box 1, which is used to detect whether there is gas leakage. The equipment box 1 further comprises an exhaust assembly, which comprises an exhaust pipe 22. The exhaust pipe 22 has a Y-shaped structure, and two joints at one end of the exhaust pipe 22 are respectively connected with the equipment box 1 and the experimental box 17. The middle part of each joint is fixedly connected with an electromagnetic valve 27. The top of the equipment box 1 is fixedly connected with a fan 23, and the input end of the fan 23 is connected with the end of the exhaust pipe 22.

[0034] It should be noted that in the present embodiment, the output end of the fan 23 is provided with a gas storage tank, and the odor sensor 18 detects the space outside the experimental box 17. When the odor sensor 18 detects that the corresponding gas leaks, the fan 23 exhausts the gas in the equipment box 1 through the exhaust pipe 22 and the corresponding electromagnetic valve 27. When the gas experiment in the experimental box 17 is completed, the fan 23 exhausts the gas used in the experimental box 17 through the exhaust pipe 22 and the electromagnetic valve 27.

[0035] In one embodiment, the driving part comprises a rotating shaft 4 rotatably installed in the middle of the equipment box 1, and the rotating seat 2 is fixedly connected to the top of the rotating shaft 4. The inside of the equipment box 1 is fixedly connected with a servo motor 6, and the servo motor 6 is drivingly connected with the rotating shaft 4 through a straight gear set 5. The placement hole has a through hole structure, and the bottom of the rotating seat 2 and the position corresponding to the placement hole are fixedly connected with a support ring 3.

[0036] It should be noted that in the present embodiment, the servo motor 6 is provided with an encoder, the servo motor 6 drives the rotating shaft 4 to rotate at a fixed angle through the straight gear set 5, the rotating shaft 4 drives the placement hole to rotate through the rotating seat 2, so that the center of each support ring 3 corresponds to the electromagnet 16. The electromagnet 16 penetrates the support ring 3 to lift the interference gas storage bottle 7.

[0037] In one embodiment, the pushing part further comprises a support frame 13 fixedly connected to the inside of the equipment box 1, the middle part of the support frame 13 is fixedly connected with a double-shaft air cylinder 14, the top of the double-shaft air cylinder 14 is fixedly connected with a lifting rod 15, the lifting rod 15 is slidingly connected with the support frame 13, and an electromagnet 16 is fixedly connected to the top of the lifting rod 15.

[0038] It should be noted that in this embodiment, under the action of the encoder, when the interference gas cylinder 7 rotates to the lower side of the support ring 3, the double-shaft air cylinder 14 drives the lifting rod 15 to move upward, the lifting rod 15 drives the electromagnet 16 to penetrate the support ring 3 to lift the interference gas cylinder 7, so that the top of the interference gas cylinder 7 is inserted into the inside of the air inlet channel 28, thereby connecting the interference gas cylinder 7 with the experiment box 17, and a one-way valve is installed in the middle part of the air inlet channel 28.

[0039] In one embodiment, a limiting ring 8 is fixedly connected to one end of the inside of the interference gas cylinder 7, a pulling rod 9 is slidingly connected to the middle part of the limiting ring 8, a spring 10 is sleeved between the end of the pulling rod 9 and the limiting ring 8, a sealing plug 11 is fixedly connected to the outside of the pulling rod 9 and located below the limiting ring 8, and an iron sheet 12 matched with the electromagnet 16 is fixedly connected to the bottom of the pulling rod 9.

[0040] It should be noted that in this embodiment, when the double-shaft air cylinder 14 lifts the interference gas cylinder 7 to cooperate with the air inlet channel 28 through the lifting rod 15 and the electromagnet 16, the electromagnet 16 is powered, so that under the action of the suction force, the sealing plug 11 is pulled downward through the iron sheet 12 and the pulling rod 9, so that the gas enters the experiment box 17 through the top outlet of the interference gas cylinder 7, and when the electromagnet 16 is powered off, the spring 10 pushes the pulling rod 9 to reset upward, so that the interference gas cylinder 7 is blocked through the sealing plug 11.

[0041] In one embodiment, a lifting plate 19 is liftingly arranged in the inside of the experiment box 17, an electric push rod 21 for driving the lifting plate 19 to lift is fixedly connected to the top of the experiment box 17, a sliding rod 26 slidingly connected with the experiment box 17 is fixedly connected to the top of the lifting plate 19, an installation plate 20 is fixedly connected to the bottom of the lifting plate 19, an installation hole 24 is formed in one side of the experiment box 17 and corresponds to the position of the installation plate 20, and a sealing door 25 is rotatably connected to one side of the installation hole 24.

[0042] It should be noted that in this embodiment, the detected gas alarm is installed outside the installation plate 20 through the installation hole 24, the sealing door 25 is sealed with the experiment box 17 through the bolts, the lifting plate 19 is driven by the electric push rod 21 to move in the inside of the experiment box 17, so that the installation plate 20 is lifted by the lifting plate 19, and the sliding rod 26 is driven by the installation plate 20 to move in the inside of the experiment box 17, so that the height of the installation plate 20 can be adjusted, the gas alarm can be adjusted, and the inside space of the experiment box 17 can be adjusted.

[0043] A disturbance simulation method, applying the above-mentioned gas disturbance simulation device for gas alarm testing, comprising the following steps:

[0044] Mix different proportions and types of interference gas with gas, then load into the interference gas storage cylinder 7, place the interference gas storage cylinder 7 in the placing hole of the rotating seat 2; drive the different interference gas storage cylinders 7 to correspond with the gas inlet channel 28 at the bottom of the experimental box 17, place the air in the interference gas storage cylinder 7 in the gas inlet channel 28, and judge the performance of the alarm through the alarm reaction in the experimental box 17.

[0045] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] In addition, the terms "first", "second", "third", "fourth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, so that the features limited by "first", "second", "third", "fourth" can be explicitly or implicitly included at least one of the features.

[0047] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screwed" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited, the above-mentioned terms in the present application can be understood according to the specific meaning of the above-mentioned terms in the present application by those skilled in the art according to the specific circumstances.

[0048] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A gas interference simulation device for use in testing a gas alarm, characterised in that: Include: Equipment box (1); Rotary seat (2), rotary seat (2) is rotated in the interior of the equipment box (1), the inner wall of the equipment box (1) is installed with the drive part of driving the fixed angle rotation of the rotary seat (2), a plurality of placing holes are equidistantly arranged on the top of the rotary seat (2); Interference gas cylinder (7), interference gas cylinder (7) is placed in the placing hole, the interior of the interference gas cylinder (7) is provided with a sealing plug (11) for blocking the outlet of the interference gas cylinder (7); The experimental box (17) for gas installation alarm, the experimental box (17) is placed above the rotary seat (2), the bottom of the experimental box (17) is installed with the air inlet channel (28); The pusher is placed below the rotary seat (2), the pusher includes the electromagnet (16) arranged in the lifting, for driving the sealing plug (11) to separate from the interference gas cylinder (7) while driving the interference gas cylinder (7) to cooperate with the air inlet channel (28).

2. The gas interferer simulator for gas alarm testing according to claim 1, characterized in that: The side of the equipment box (1) is provided with a box door (29), and the interior of the equipment box (1) is installed with an odor sensor (18) for detecting whether there is gas leakage.

3. The gas interferer simulator for testing a gas alarm according to claim 1, characterized in that: It also includes an exhaust assembly, the exhaust pipe (22) is Y-shaped structure, one end of the exhaust pipe (22) is connected with the equipment box (1) and the experimental box (17) respectively, and the middle of the two joints is fixedly connected with an electromagnetic valve (27).

4. The gas interferer simulator for gas alarm testing according to claim 3, characterized in that: The top of the equipment box (1) is fixedly connected with a fan (23), and the input end of the fan (23) is connected with the end of the exhaust pipe (22).

5. The gas interference simulation device for testing a gas alarm according to claim 1, characterized in that: The drive part includes a rotating shaft (4) rotatably installed in the middle of the equipment box (1), the rotary seat (2) is fixedly connected with the top of the rotating shaft (4), the inside of the equipment box (1) is fixedly connected with a servo motor (6), and the servo motor (6) is in transmission connection with the rotating shaft (4) through a straight gear set (5).

6. The gas interferer simulator for gas alarm testing according to claim 1, wherein: The placing hole is a through hole structure, and the bottom of the rotary seat (2) and the position corresponding to the placing hole are fixedly connected with a support ring (3).

7. The gas alarm test gas interference simulation device of claim 1, wherein: The pusher further includes a support frame (13), the support frame (13) is fixedly connected with the inside of the equipment box (1), the middle of the support frame (13) is fixedly connected with a double shaft air cylinder (14), the top of the double shaft air cylinder (14) is fixedly connected with a lifting rod (15), the lifting rod (15) is in sliding connection with the support frame (13), and the electromagnet (16) is fixedly connected with the top of the lifting rod (15).

8. The gas alarm test gas interference simulation device of claim 1, wherein: One end of the interior of the interference gas cylinder (7) is fixedly connected with a limiting ring (8), the middle of the limiting ring (8) is in sliding connection with a pulling rod (9), the spring (10) is sleeved between the end of the pulling rod (9) and the limiting ring (8), the sealing plug (11) is fixedly connected with the outside of the pulling rod (9) and located below the limiting ring (8), and the bottom of the pulling rod (9) is fixedly connected with an iron sheet (12) matched with the electromagnet (16).

9. The gas alarm test gas interference simulation apparatus of claim 1, wherein: The inside of the experiment box (17) is provided with a lifting plate (19), the top of the experiment box (17) is fixedly connected with an electric push rod (21) for driving the lifting plate (19) to lift, the top of the lifting plate (19) is fixedly connected with a sliding rod (26) in sliding connection with the experiment box (17), the bottom of the lifting plate (19) is fixedly connected with a mounting plate (20), a mounting hole (24) is formed in one side of the experiment box (17) and corresponds to the position of the mounting plate (20), and one side of the mounting hole (24) is rotatably connected with a sealing door (25).

10. A method of simulating disturbance of a gas alarm test gas, using a gas disturbance simulation device according to any one of claims 1-9, characterized in that: The method comprises the following steps: Different proportions and types of interference gas are mixed with fuel gas and then loaded into the interference gas storage cylinder (7), and the interference gas storage cylinder (7) is placed in the placing hole of the rotating seat (2); The driving part drives different interference gas storage cylinders (7) to correspond to the air inlet channel (28) at the bottom of the experiment box (17), air in the interference gas storage cylinder (7) is placed in the air inlet channel (28), and the performance of the alarm is judged through the reaction of the alarm in the experiment box (17).

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