Gas alarm impact performance test system

Abstract

The utility model relates to a gas alarm impact performance test system, and belongs to the technical field of gas alarm impact testing, the test system comprises an input gas pipe, one end of the input gas pipe is communicated with an input gas path, and the other end of the input gas pipe can be communicated with a steel cylinder externally storing test gas; one end of the output air pipe is communicated with the output air path, and the other end faces the detected alarm; the electromagnetic valve is respectively communicated with the input gas path and the output gas path and is used for conducting or cutting off test gas; and the main controller is in communication connection with the electromagnetic valve. The method has the beneficial effect of improving the test efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of gas alarm impact testing, and in particular to a gas alarm impact performance testing system. Background Art

[0002] As gas usage has become more widespread, so too has the increasing emphasis on gas alarm quality. The relevant standards have added numerous test items, including a "gas shock resistance test," which requires "a fixed concentration of test gas, depending on the type of gas monitored by the gas alarm, blown onto the alarm's sensitive element at a flow rate of 100 mL / min for 30 seconds, followed by a 1-minute pause, and repeated 1,000 times." Without the appropriate equipment, this test would be virtually impossible to perform manually. Existing equipment, however, is relatively inefficient and requires manual operation, which can lead to inaccurate timing and counting errors, resulting in low test efficiency. Utility Model Content

[0003] In order to improve the test efficiency, this application provides a gas alarm impact performance test system, which adopts the following technical solutions:

[0004] A gas alarm impact performance test system, comprising:

[0005] An input gas pipe, one end of which is connected to the input gas circuit, and the other end of which can be connected to an external cylinder storing test gas;

[0006] Output air pipe, one end of which is connected to the output air circuit and the other end of which is directed toward the alarm to be tested;

[0007] solenoid valves, respectively connected to the input gas path and the output gas path, for conducting or cutting off the test gas;

[0008] A main controller is communicatively connected with the solenoid valve.

[0009] By adopting the above technical solution, the solenoid valve can be directly controlled by the main controller to control the on and off of the solenoid valve, thereby realizing the control of the jet; the main controller can count the number of jets by counting the number of times the solenoid valve is turned on and off; and the main controller can display the start time according to the internal RTC clock, so that it is convenient to know when the test starts; display the expected stop time, so that it is convenient to know the end time of the test; display the test process time, so that it is convenient to know the progress of the test, and the timing of the solenoid valve cut-off / on time, so as to realize the control of the solenoid valve; thereby freeing up manpower, realizing timed gas filling, and improving the test efficiency.

[0010] Optionally, the testing system further includes:

[0011] A flow meter, installed on the output gas path, for detecting the flow rate of the output test gas;

[0012] A pressure detector, installed at the output end of the solenoid valve, for collecting the pressure of the output test gas;

[0013] The flow meter and the pressure detector are both communicatively connected to the main controller.

[0014] By adopting the above technical solution, the flow meter detects the flow of the output test gas, and the main controller collects the flow information and displays it. When the flow is abnormal, a prompt is given and it is adjusted by controlling the solenoid valve; the pressure detector collects the pressure of the output test gas and is monitored by the main controller. When the pressure is abnormal, a prompt is given to ensure the safety of the test.

[0015] Optionally, the testing system further includes:

[0016] The gas detector is installed in the test room and is used to collect the gas concentration in the test room; the gas detector is communicatively connected with the main controller.

[0017] By adopting the above technical solution, a prompt is given when the gas concentration in the test chamber is abnormal, thereby ensuring the safety of the test.

[0018] Optionally, the testing system further includes:

[0019] The fan is pre-installed in the test room and is communicatively connected with the controller.

[0020] By adopting the above technical solution, during the test, if the gas concentration in the test chamber exceeds the dangerous alarm value, the fan will be automatically started to discharge the gas outdoors to ensure the safety inside the test chamber.

[0021] Optionally, the testing system further includes:

[0022] The operating table adopts a fume hood structure and is used to place the alarm to be tested;

[0023] An exhaust device is built into the operating table and is connected to the fume hood for discharging the gas generated by the test to the outside; the exhaust device is communicatively connected to the controller.

[0024] By adopting the above technical solution, the gas generated by the test can be discharged outdoors in a timely manner.

[0025] Optionally, the testing system further includes:

[0026] A control box is provided in which the main controller, the solenoid valve, the flow meter and the pressure detector are assembled; the input gas circuit and the output gas circuit are opened on the control box; the control box is also provided with a working power input interface and an access interface for the gas detector.

[0027] Optionally, the testing system further includes:

[0028] a tracheal stent, placed at the end of the output trachea;

[0029] Two clamping plates are provided, and the two clamping plates are connected to the trachea bracket by sliding toward or away from each other, and are used to clamp the output trachea;

[0030] A locking component is installed on the trachea bracket and is used to lock the clamping plate.

[0031] By adopting the above technical solution, the clamping plate can clamp the output air pipe and play the role of fixing the output air pipe; by adjusting the distance between the two clamping plates, output air pipes of different diameters can be clamped to improve the scope of application.

[0032] Optionally, the locking component includes:

[0033] A locking fixing block, fixedly connected to the tracheal support;

[0034] A locking rod, one end of which is fixedly connected to the clamping plate and the other end of which is passed through the locking block;

[0035] A locking spring is coaxially sleeved on the locking rod and located between the locking block and the clamping plate;

[0036] A locking nut is threadedly connected to one end of the locking rod passing through the locking fixing block.

[0037] By adopting the above technical solution, the clamping plate can be adjusted by rotating the locking nut.

[0038] Optionally, the testing system further includes:

[0039] A rotating disk, rotatably connected to the trachea bracket, the clamping plate and the locking component being mounted on the rotating disk;

[0040] A rotating ring gear is coaxially sleeved on the rotating disk;

[0041] A limiting tooth is slidably connected to the tracheal support and can engage with the rotating gear ring;

[0042] A limit spring is installed on the tracheal support and is used to reset the limit tooth after it slides.

[0043] By adopting the above technical solution, the direction of the output air pipe can be easily adjusted to adapt to different positions of the alarm to be tested.

[0044] In summary, this application has at least the following beneficial effects:

[0045] 1. The purpose of setting up the input air pipe, output air pipe, solenoid valve and main controller is to directly control the on and off of the solenoid valve through the main controller, so as to realize the control of the air jet; the main controller can count the number of air jets by counting the number of times the solenoid valve is turned on and off; and the main controller can display the start time according to the internal RTC clock, so as to facilitate the understanding of when the test starts; display the expected stop time, so as to facilitate the understanding of the end time of the test; display the test process time, so as to facilitate the understanding of the progress of the test, and the timing of the solenoid valve cut-off / conduction time, so as to facilitate the control of the solenoid valve; thereby freeing up manual labor, realizing timed gas filling, and improving the test efficiency.

[0046] 2. The purpose of setting up the flow meter and pressure detector is that the flow meter detects the flow of the output test gas, and the main controller collects the flow information and displays it. When the flow is abnormal, a prompt is given and it is adjusted by controlling the solenoid valve; the pressure detector collects the pressure of the output test gas and is monitored by the main controller. When the pressure is abnormal, a prompt is given to ensure the safety of the test.

[0047] 3. The purpose of setting up a gas detector and linking it with the fan is that during the test, if the gas concentration in the test room exceeds the dangerous alarm value, the fan will be automatically started to discharge the gas outdoors to ensure the safety inside the test room.

[0048] 4. The purpose of setting up the tracheal stent is to facilitate the placement and fixation of the output trachea.

[0049] 5. The purpose of setting the rotating disk is to facilitate the adjustment of the direction of the output air pipe to adapt to the different positions of the alarm to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a structural block diagram of the control structure related to this application;

[0051] Figure 2 It is a structural diagram of the tracheal stent related structures.

[0052] Explanation of the accompanying drawings: 101, solenoid valve; 102, main controller; 103, flow meter; 104, pressure detector; 105, gas detector; 106, fan; 108, exhaust device; 200, trachea bracket; 210, output air pipe; 220, rotating disk; 221, rotating ring gear; 222, limiting tooth; 223, limiting spring; 230, clamping plate; 240, locking component; 241, locking fixing block; 242, locking rod; 243, locking spring; 244, locking nut. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the appended drawings of the embodiments of the present invention. Figure 1 -Attached Figure 2 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0054] This test system has the following functions: timing, counting, controlling jet, controlling flow, displaying gas pressure, monitoring gas concentration in the test room, linking the fan 106, operating buttons, etc.

[0055] In order to achieve the above functions, the present application discloses a gas alarm impact performance test system. Figure 1 As an embodiment of the test system, the test system may include a control box, an input air pipe, an output air pipe 210 , a solenoid valve 101 and a main controller 102 .

[0056] The control box is provided with an input gas circuit, an output gas circuit, an input interface for a working power supply, and an access interface for the gas detector 105. One end of the input gas pipe is connected to the input gas circuit, and the other end can be connected to an external cylinder storing test gas. In addition, the input gas circuit can be connected to multiple cylinders through the input gas pipe and a multi-way distributor. One end of the output gas pipe 210 is connected to the output gas circuit, and the other end faces the alarm under test. The input end of the solenoid valve 101 is connected to the input gas circuit, and the output end is connected to the output gas circuit; the main controller 102 is communicatively connected to the solenoid valve 101. The main controller 102 and the solenoid valve 101 are both assembled in the control box; the output gas pipe 210 can be a hose. The main controller 102 can be a microprocessor MCU with a built-in RTC clock, and has button operation, display function, and prompt function. The button operation is used to set operating parameters, such as the on / off time of the solenoid valve 101, the number of on and off times of the solenoid valve 101, starting / stopping the test, manually starting the fan 106, and other operations.

[0057] Furthermore, the control box is equipped with a flow meter 103 and a pressure detector 104. The flow meter 103 is installed on the output gas line to detect the flow rate of the output test gas. The pressure detector 104 is installed at the output end of the solenoid valve 101 to collect the pressure of the output test gas. Both the flow meter 103 and the pressure detector 104 are in communication with the controller.

[0058] The access port of gas detector 105 is used to connect gas detector 105, enabling communication between gas detector 105 and main controller 102 to monitor gas concentrations within the test chamber. Furthermore, main controller 102 is linked to blower 106 within the test chamber. When the gas concentration within the test chamber exceeds the danger alarm threshold, blower 106 is activated to exhaust the gas outside, ensuring safety within the test chamber. Gas detectors 105 may include at least natural gas detectors, liquefied gas detectors, carbon monoxide detectors, and hydrogen detectors, enabling detection of various gases within the test chamber.

[0059] Reference Figure 1 and Figure 2 As another embodiment of the test system, the test system may further include an operating table, an exhaust device 108 and a tracheal stent 200 .

[0060] The operating table is constructed as a fume hood, and the alarm to be tested is placed inside the fume hood. An exhaust device 108 is built into the operating table and communicates with the fume hood and the main controller 102. It is used to exhaust the gases generated by the test to the outside. Exhaust device 108 is a conventional exhaust structure and will not be described in detail.

[0061] A tracheal support 200 is placed at the end of the output tracheal tube 210. A rotating disk 220 is rotatably connected to the tracheal support 200. Two clamping plates 230 are provided on the rotating disk 220. The two clamping plates 230 are connected to the tracheal support 200 by sliding toward or away from each other to clamp the output tracheal tube 210. A locking component 240 is mounted on the rotating disk 220. The locking components 240 are correspondingly arranged with the clamping plates 230 to lock the corresponding clamping plates 230. Taking a set of locking components 240 as an example:

[0062] The locking component 240 may include a locking fixing block 241 , a locking rod 242 , a locking spring 243 and a locking nut 244 .

[0063] A locking block 241 is fixedly connected to the rotating disk 220. One end of a locking rod 242 is fixedly connected to the clamping plate 230, and the other end extends through the locking block 241. A locking spring 243 is coaxially sleeved on the locking rod 242 and positioned between the locking block 241 and the clamping plate 230. A locking nut 244 is threadedly connected to the end of the locking rod 242 that extends through the locking block 241.

[0064] Furthermore, to lock the rotating disk 220, a rotating gear ring 221 is coaxially sleeved on the rotating disk 220. A sliding groove and a limiting tooth 222 are provided on the tracheal support 200. The limiting tooth 222 is slidably connected to the rotating disk 220 through the sliding groove. A limiting spring 223 is placed in the sliding groove, with one end of the limiting spring 223 fixedly connected to the side wall of the sliding groove and the other end fixedly connected to the limiting tooth 222.

[0065] The implementation principle of this embodiment is:

[0066] The control box is placed in the test room. After the gas detector 105 is installed in a suitable position, it is connected to the interface of the gas detector 105 to monitor the ambient gas. Then, cylinders of different gases (such as natural gas, liquefied gas, manufactured gas, and carbon monoxide) are connected through a multiplexer. The input gas circuit is connected to the output port of the multiplexer through an input gas pipe. The output gas circuit is connected to the output gas pipe 210, and the output gas pipe 210 is fixed to the gas pipe bracket 200 to facilitate blowing gas to the product under test.

[0067] Place the alarm to be tested on the operating table and connect it to the exhaust device 108 to discharge the gas generated by the test to the outside in time; according to the test requirements, set the operating parameters on the main controller 102, such as ventilation time, stop time, and ventilation times;

[0068] Start the main controller 102, which controls the test gas according to a predetermined program and displays information such as the test start time, ventilation times, gas flow, and gas pressure. When an abnormality occurs, gas filling is stopped and an audible and visual alarm is issued to alert the test personnel.

[0069] During the test, if the gas concentration in the test room exceeds the dangerous alarm value, the fan 106 is controlled to start and discharge the gas outside to ensure the safety inside the test room; during the test, the button can be manually operated to pause at any time to facilitate handling other things; the main controller 102 has a reservation function, which is convenient for automatic start at the scheduled time; the main controller 102 has an automatic pause function, which is convenient for not conducting tests at non-scheduled times.

[0070] The above are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Unless otherwise specified, any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features. In other words, unless otherwise specified, each feature is merely an example of a series of equivalent or similar features.

Claims

1. A gas alarm impact performance test system, characterized in that: include: An input gas pipe, one end of which is connected to the input gas circuit, and the other end of which can be connected to an external cylinder storing test gas; An output air pipe (210), one end of which is connected to the output air path and the other end of which is directed toward the alarm to be tested; a solenoid valve (101), respectively connected to the input gas path and the output gas path, for conducting or cutting off the test gas; A main controller (102) is communicatively connected to the solenoid valve (101).

2. A gas alarm impact performance testing system according to claim 1, characterized in that: The test system further comprises: A flow meter (103), installed on the output gas path, for detecting the flow rate of the output test gas; A pressure detector (104), installed at the output end of the solenoid valve (101), for collecting the pressure of the output test gas; The flow meter (103) and the pressure detector (104) are both communicatively connected to the main controller (102).

3. A gas alarm impact performance testing system according to claim 2, characterized in that: The test system further comprises: A gas detector (105) is installed in the test room and is used to collect the gas concentration in the test room; the gas detector (105) is communicatively connected to the main controller (102).

4. A gas alarm impact performance testing system according to claim 3, characterized in that: The test system further comprises: The fan (106) is pre-installed in the test room and is in communication connection with the controller.

5. A gas alarm impact performance testing system according to claim 1, characterized in that: The test system further comprises: The operating table adopts a fume hood structure and is used to place the alarm to be tested; An exhaust device (108) is built into the operating table and is connected to the fume hood, and is used to discharge the gas generated by the test to the outside; the exhaust device (108) is in communication connection with the controller.

6. A gas alarm impact performance testing system according to claim 3, characterized in that: The test system further comprises: A control box is provided, wherein the main controller (102), the solenoid valve (101), the flow meter (103) and the pressure detector (104) are assembled in the control box; the input gas path and the output gas path are opened on the control box; and the control box is also provided with a working power input interface and an access interface for the gas detector (105).

7. A gas alarm impact performance testing system according to claim 1, characterized in that: The test system further comprises: A tracheal stent (200) is placed at the end of the output trachea (210); Two clamping plates (230) are provided, and the two clamping plates (230) are connected to the trachea support (200) by sliding toward or away from each other, and are used to clamp the output trachea (210); A locking component (240) is mounted on the tracheal support (200) and is used to lock the clamping plate (230).

8. A gas alarm impact performance testing system according to claim 7, characterized in that: The locking component (240) comprises: A locking and fixing block (241) fixedly connected to the tracheal support (200); A locking rod (242), one end of which is fixedly connected to the clamping plate (230) and the other end of which is passed through the locking block (241); A locking spring (243) is coaxially sleeved on the locking rod (242) and is located between the locking fixing block (241) and the clamping plate (230); A locking nut (244) is threadedly connected to one end of the locking rod (242) passing through the locking fixing block (241).

9. A gas alarm impact performance testing system according to claim 7, characterized in that: The test system further comprises: A rotating disk (220) is rotatably connected to the tracheal support (200), and the clamping plate (230) and the locking component (240) are mounted on the rotating disk (220); A rotating ring gear (221) is coaxially sleeved on the rotating disk (220); A limiting tooth (222) is slidably connected to the tracheal support (200) and is capable of meshing with the rotating gear ring (221); A limit spring (223) is mounted on the tracheal support (200) and is used to reset the limit tooth (222) after sliding.

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