Corrosion resistance testing device for gas sensor

Abstract

The utility model discloses a corrosion resistance test device for a gas sensor, which relates to the technical field of gas sensor tests and comprises a test box, a mounting part, a spray head and a water supply component. The test box is used for accommodating to-be-tested gas; the mounting piece is arranged in the test box, and the mounting piece is used for mounting a gas sensor to be tested; the spray head is arranged in the test box and is used for spraying corrosive liquid to a gas sensor to be tested; and the water supply assembly is connected with the water inlet of the spray head and is used for supplying corrosive liquid to the spray head. According to the technical scheme, the corrosive liquid is sprayed to the gas sensor to be detected, so that the reading change of the gas sensor to be detected during corrosion is detected, and the problem that the influence on the operation of the gas sensor when the gas sensor is corroded is difficult to detect is solved on the whole.

Description

Technical Field

[0001] This utility model relates to the field of gas sensor testing technology, and in particular to a gas sensor corrosion resistance testing device. Background Technology

[0002] Some common gas sensors, such as combustible gas sensors, including hydrogen sensors and carbon monoxide sensors, are subjected to special operating conditions during operation. For example, if the gas sensor is installed in a coastal area or other areas with acid rain, it will be corroded during use. When testing the gas sensor, it is difficult to detect the effects of corrosion. Utility Model Content

[0003] The main purpose of this invention is to propose a corrosion resistance testing device for gas sensors, which aims to improve the problem of difficulty in detecting the impact of corrosion on the operation of gas sensors.

[0004] To achieve the above objectives, the gas sensor corrosion resistance testing device proposed in this utility model includes:

[0005] A test chamber is used to contain the gas to be tested.

[0006] A mounting component is provided inside the test chamber, and the mounting component is used to install the gas sensor to be tested.

[0007] A nozzle, located inside the test chamber, is used to spray a corrosive liquid onto the gas sensor under test; and,

[0008] A water supply assembly, connected to the water inlet of the nozzle, is used to supply corrosive liquid to the nozzle.

[0009] In one embodiment, the position of at least one of the mounting components and the nozzles is adjustable to change the corrosion location of the corrosive liquid on the gas sensor under test.

[0010] In one embodiment, the test chamber is provided with a rotating component, the rotating component having a rotating rod that rotates about a first horizontal axis, and the mounting component is fixedly connected to the rotating rod.

[0011] In one embodiment, the water supply assembly includes:

[0012] A water storage tank, said water storage tank being used to store corrosive liquid; and,

[0013] The water supply pipe is connected at one end to the water inlet of the nozzle and at the other end to the water storage tank.

[0014] In one embodiment, the water supply assembly further includes:

[0015] A water pump is installed inside the water storage tank; and,

[0016] The connecting pipe has one end connected to the outlet of the water pump and the other end connected to the water supply pipe.

[0017] In one embodiment, a temperature regulating component is also provided in the water storage tank, which is used to regulate the temperature of the corrosive liquid in the water storage tank.

[0018] In one embodiment, the test chamber is connected to a drain pipe, and a drain valve is provided on the drain pipe.

[0019] In one embodiment, the test chamber is connected to an air supply assembly; and / or,

[0020] The test chamber is connected to an exhaust assembly.

[0021] In one embodiment, a gas concentration detector is installed inside the test chamber.

[0022] In one embodiment, the gas sensor corrosion resistance testing device further includes a display control module, which is electrically connected to the gas concentration detector.

[0023] The technical solution of this utility model uses a test chamber to maintain a stable concentration of the gas to be tested in the gas sensor; then, the nozzle is activated to spray a corrosive liquid onto the gas sensor. By changing the position and time of contact between the gas sensor and the corrosive liquid, the corrosion state of the gas sensor can be changed, thereby detecting the change in the reading of the gas sensor during corrosion. Overall, this improves the problem of difficulty in detecting the impact of corrosion on the operation of the gas sensor. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of an embodiment of the gas sensor corrosion resistance testing device provided by this utility model.

[0026] Explanation of icon numbers:

[0027] 1. Test chamber; 11. Rotating component; 12. Connecting arm; 13. Drain pipe; 131. Drain valve; 14. Gas concentration detector; 2. Mounting component; 3. Nozzle; 4. Water supply assembly; 41. Water storage tank; 411. Temperature control component; 42. Water supply pipe; 421. Water supply valve; 43. Water pump; 44. Connecting pipe; 5. Display and control module; 6. Gas supply assembly; 61. Gas supply component; 62. Gas supply pipe; 63. Gas supply valve; 7. Exhaust assembly; 71. Exhaust pipe; 72. Exhaust valve.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] Some common gas sensors, such as combustible gas sensors, including hydrogen sensors and carbon monoxide sensors, are subjected to special operating conditions during operation. For example, if the gas sensor is installed in a coastal area or other areas with acid rain, it will be corroded during use. When testing the gas sensor, it is difficult to detect the impact of corrosion and to determine the accuracy of the gas sensor's detection when it is corroded.

[0033] This invention proposes a corrosion resistance testing device for gas sensors.

[0034] Please see Figure 1 In one embodiment of this utility model, the gas sensor corrosion resistance testing device includes the test chamber 1, the mounting component 2, the nozzle 3, and the water supply assembly 4. The test chamber 1 is used to contain the gas to be tested; the mounting component 2 is disposed inside the test chamber 1 and is used to install the gas sensor to be tested; the nozzle 3 is disposed inside the test chamber 1 and is used to spray corrosive liquid onto the gas sensor to be tested; the water supply assembly 4 is connected to the water inlet of the nozzle 3 and is used to supply corrosive liquid to the nozzle 3.

[0035] The technical solution of this utility model uses a test chamber 1 to maintain a stable concentration of the gas to be tested in the gas sensor; then, the nozzle 3 is activated to spray a corrosive liquid onto the gas sensor. By changing the position and time of contact between the gas sensor and the corrosive liquid, the corrosion state of the gas sensor can be changed, thereby detecting the change in the reading of the gas sensor during corrosion. Overall, this improves the problem of difficulty in detecting the impact of corrosion on the operation of the gas sensor.

[0036] In one embodiment of this application, the gas sensor to be measured is a hydrogen sensor, and the gas to be measured is a mixture containing a certain concentration of hydrogen.

[0037] The test chamber 1 can be any sealed container, and it can be equipped with a transparent observation window. Furthermore, the test chamber 1 can be a transparent container to facilitate observation of the corrosion of the gas sensor by the corrosive liquid. The corrosive liquid can be an acidic liquid.

[0038] The mounting component 2 is preferably a clamping component, which fixes the gas sensor to be tested by clamping and fixing, making it easy to fix and install hydrogen sensors of various sizes.

[0039] The position of at least one of the mounting component 2 and the nozzle 3 is adjustable to change the corrosion location of the corrosive liquid on the gas sensor under test. By adjusting the position of one or more of the mounting component 2 and the nozzle 3, the position where the gas sensor under test contacts the corrosive liquid can be changed, thereby changing the corrosion area of ​​the gas sensor under test.

[0040] Please see Figure 1 In one embodiment of this application, the nozzle 3 is disposed on the upper side of the mounting member 2, and the nozzle 3 is used to spray water downward. The mounting member 2 is disposed on the lower side of the nozzle 3, and the mounting member 2 is rotatably disposed along a horizontal rotation axis. By rotating the mounting member 2, the gas sensor to be tested can be rotated, thereby changing the position of the corrosive liquid sprayed on the gas sensor to be tested.

[0041] In one embodiment of this application, the test chamber 1 is provided with a rotating component 11, the rotating component 11 having a rotating rod that rotates about a first horizontal axis, and the mounting component 2 being fixedly connected to the rotating rod. By activating the rotating component 11, the mounting component 2 is driven to rotate.

[0042] The gas sensor corrosion resistance testing device also includes a display control module 5, which can be a computer. The rotating component 11 can be a motor, and the rotating rod is the output shaft of the motor. The rotating component 11 is electrically connected to the display control module 5, and the operation of the rotating component 11 can be controlled through the display control module 5.

[0043] Please see Figure 1 In one embodiment of this application, a horizontal connecting arm 12 is fixedly connected to the inner side wall of the test chamber 1. The connecting arm 12 is coaxial with the first horizontal axis, and the rotating component 11 is fixedly installed on the connecting arm 12.

[0044] The water supply assembly 4 includes the water storage tank 41 and the water supply pipe 42. The water storage tank 41 is used to store corrosive liquid; one end of the water supply pipe 42 is connected to the water inlet of the nozzle 3, and the other end is connected to the water storage tank 41.

[0045] The corrosive liquid in the water tank 41 can be delivered to the nozzle 3 through the water supply pipe 42, ensuring that the corrosive liquid sprays onto the gas sensor under test.

[0046] Please see Figure 1A water supply valve 421 is provided on the water supply pipe 42. By controlling the opening and closing of the water supply valve 421, the flow of the water supply pipe 42 can be controlled. The water supply valve 421 can be a solenoid valve. The water supply valve 421 is electrically connected to the display control module 5. The display control module 5 can control the opening and closing of the water supply valve 421.

[0047] The water supply assembly 4 also includes the water pump 43 and the connecting pipe 44. The water pump 43 is located inside the water storage tank 41; one end of the connecting pipe 44 is connected to the outlet of the water pump 43, and the other end is connected to the water supply pipe 42. Activating the water pump 43 pressurizes the corrosive liquid in the water storage tank 41 and sends it into the connecting pipe 44, and then through the connecting pipe 44 into the water supply pipe 42.

[0048] In one embodiment of this application, the water pump 43 is electrically connected to the display control module 5, and the water pump 43 can be controlled to start and stop through the display control module 5.

[0049] The water storage tank 41 is also equipped with a temperature regulating component 411, which is used to regulate the temperature of the corrosive liquid in the water storage tank 41. By means of the temperature regulating component 411, the temperature of the corrosive liquid in the water storage tank 41 can be adjusted, thereby regulating the temperature of the corrosive liquid during the corrosion of the gas sensor under test.

[0050] In one embodiment of this application, the temperature regulating element 411 is electrically connected to the display control module 5. By activating the display control module 5, the operation of the temperature regulating element 411 can be controlled. The temperature regulating element 411 is a heating element. By activating the heating element, the corrosive liquid can be heated to regulate its temperature.

[0051] Please see Figure 1 The test chamber 1 is connected to a drain pipe 13, and a drain valve 131 is installed on the drain pipe 13. Specifically, the drain valve 131 is a solenoid valve, and the drain valve 131 is electrically connected to the display control module 5. The display control module 5 controls the opening and closing of the drain valve 131, which controls the drainage of the drain pipe 13, and facilitates the discharge of the corrosive liquid in the test chamber 1 to the outside of the test chamber 1.

[0052] The test chamber 1 is connected to a gas supply assembly 6, which includes a gas supply component 61, a gas supply pipe 62, and a gas supply valve 63. The gas supply component 61 can be a gas cylinder. The gas supply pipe 62 connects the gas supply component 61 and the test chamber 1. The gas supply valve 63 is located on the gas supply pipe 62. By opening the gas supply valve 63, the gas supply component 61 can deliver the gas to be tested into the test chamber 1, thereby filling the test chamber 1 with the gas to be tested at the corresponding concentration.

[0053] The air supply valve 63 can be a solenoid valve. The air supply valve 63 is electrically connected to the display control module 5. The display control module 5 controls the opening and closing of the air supply valve 63, which can control the air intake of the test chamber 1.

[0054] Please see Figure 1 The test chamber 1 is connected to an exhaust assembly 7. After the test is completed, the gas to be tested is discharged outside the test chamber 1 through the exhaust assembly 7, which facilitates the next test.

[0055] The exhaust assembly 7 includes an exhaust pipe 71 and an exhaust valve 72. The exhaust pipe 71 is connected to the test chamber 1, and the exhaust valve 72 is located on the exhaust pipe 71. After the exhaust valve 72 is opened, the gas to be tested inside the test chamber 1 can be discharged to the outside of the test chamber 1 through the exhaust pipe 71.

[0056] The test chamber 1 is equipped with a gas concentration detector 14. The gas concentration detector 14 can detect the gas concentration in the test chamber 1 in real time.

[0057] To ensure the accuracy of the gas concentration detector 14, the gas concentration detector 14 can be set away from the nozzle 3, or the gas concentration detector 14 can be set on the upper side of the nozzle 3.

[0058] The display control module 5 is electrically connected to the gas concentration detector 14. The concentration of the gas to be tested within the test chamber 1 can be displayed in real time on the display control module 5.

[0059] The display control module 5 can communicate with the gas sensor under test, and can easily display the reading of the gas sensor under test on the display module.

[0060] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A gas sensor corrosion resistance test device characterized by comprising: The application relates to a corrosion-resistant test device for a gas sensor. The device comprises: a test box for containing a gas to be tested; a mounting member arranged in the test box, the mounting member being used for mounting a gas sensor to be tested; a spray head arranged in the test box, the spray head being used for spraying a corrosive liquid to the gas sensor to be tested; and 2. The corrosion resistance test device for gas sensor according to claim 1, characterized by a water supply assembly connected to a water inlet of the spray head, the water supply assembly being used for supplying the corrosive liquid to the spray head.

3. The corrosion resistance test device for gas sensor according to claim 2, characterized by The position of at least one of the mounting member and the spray head is adjustable so as to change the corrosion position of the corrosive liquid on the gas sensor to be tested.

4. The corrosion resistance test apparatus for a gas sensor according to claim 1, characterized in that, The test box is provided with a rotating member, the rotating member having a rotating rod rotating around a first horizontal axis, and the mounting member is fixedly connected to the rotating rod. The water supply assembly comprises: a water storage box used for storing the corrosive liquid; and 5. The corrosion resistance test apparatus for a gas sensor according to claim 4, characterized by a water supply pipe, one end of the water supply pipe being connected to the water inlet of the spray head, and the other end of the water supply pipe being connected to the water storage box. The water supply assembly further comprises: a water pump arranged in the water storage box; and 6. The corrosion resistance test apparatus for a gas sensor according to claim 4, wherein a connecting pipe, one end of the connecting pipe being connected to a water outlet of the water pump, and the other end of the connecting pipe being connected to the water supply pipe.

7. The corrosion resistance test apparatus for a gas sensor according to claim 1, wherein The water storage box is further provided with a temperature adjusting member, the temperature adjusting member being used for adjusting the temperature of the corrosive liquid in the water storage box.

8. The corrosion resistance test apparatus for a gas sensor according to claim 1, wherein The test box is connected with a drain pipe, and the drain pipe is provided with a drain valve. The test box is connected with a gas supply assembly; and / or 9. The corrosion resistance test apparatus for a gas sensor according to claim 1, wherein The test box is connected with a gas exhaust assembly.

10. The corrosion resistance test device for gas sensor according to claim 9, wherein The test box is provided with a gas concentration detector. The corrosion-resistant test device for the gas sensor further comprises a display control module, the display control module being electrically connected to the gas concentration detector.

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