Oil smoke resistance test system for gas detector

By designing an anti-oil fume testing system, the performance of gas detectors in oil fume environments is evaluated, solving the problem that existing testing standards do not consider the impact of oil fumes. This enables reliability and safety assessment in oil fume environments, improving testing accuracy and safety.

CN223679153UActive Publication Date: 2025-12-16HEFEI INST FOR PUBLIC SAFETY RES TSINGHUA UNIV
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Patent Information

Application Number
CN202423220258.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2023-12-29
Filing Date
2024-12-24
Publication Date
2025-12-16
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

Existing gas detector testing standards do not take into account the impact of oil fume environments on their performance, which may lead to unreliable operation in oil fume environments and pose safety hazards.

Method used

An anti-oil fume testing system was designed, comprising a test chamber, an oil fume generator, a gas interface, a concentration detection device, and a gas analysis device. By simulating an oil fume environment, the system evaluates the response characteristics and sensitivity of the gas detector, and precisely controls the oil fume concentration and temperature through a power control module to ensure the accuracy and safety of the test.

Benefits of technology

Effectively assessing and improving the anti-interference capability of gas detectors in oil fume environments ensures their reliable operation in complex environments, enhances safety and testing accuracy, meets market demands, and promotes the improvement of standards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-lampblack test system for a gas detector. The oil smoke resistance test system comprises a test box, an oil smoke generation device, a gas interface, a concentration detection device and a gas analysis device, the test box is internally provided with a test space, a gas detector is suitable for being placed in the test space, the oil smoke generation device is communicated with the test space and used for generating oil smoke, the gas interface is communicated with the test space, and the concentration detection device is used for detecting the concentration of the oil smoke. The gas interface is suitable for accessing a gas source, a concentration detection interface of the concentration detection device is communicated with the test space, the concentration detection device is used for detecting the oil smoke concentration in the test space, a gas analysis interface of the gas analysis device is communicated with the test space, and the gas analysis device is used for detecting the gas concentration in the test space; oil fume and fuel gas can be introduced into the test space in the test box so as to test the oil fume resistance of the fuel gas detector and evaluate the response characteristic and sensitivity of the fuel gas detector in an oil fume environment.
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Description

[0001] Cross-reference to related applications

[0002] This utility model claims priority to Chinese Patent Application No. 202311872752.2, filed on December 29, 2023, entitled "Anti-Fume Testing System for Gas Detectors", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This utility model relates to the field of testing system technology, and more specifically, to an anti-oil fume testing system for gas detectors. Background Technology

[0004] Currently, various gas leak accidents occur frequently, seriously threatening people's lives and property. Gas detectors can detect leaked gas. When the gas concentration reaches a preset level, the gas detector's alarm system will sound an alarm to remind people to shut off the gas and avoid accidents. In order to ensure that the gas detector's alarm system can work reliably in complex environments, it must be comprehensively tested and verified.

[0005] In practical applications such as restaurant kitchens, the presence of a large amount of oily fumes may affect the performance of gas detectors. However, current testing standards for gas detectors do not consider the interference of oily fume gas environment on gas detectors. Utility Model Content

[0006] This invention aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, this invention proposes an oil fume resistance testing system for gas detectors, capable of conducting oil fume resistance tests on gas detectors.

[0007] An oil fume resistance testing system for a gas detector according to an embodiment of the present invention includes: a test chamber, an oil fume generating device, a gas interface, a concentration detection device, and a gas analysis device. The test chamber has a test space, and the gas detector is adapted to be placed in the test space. The oil fume generating device is connected to the test space and is used to generate oil fumes. The gas interface is connected to the test space and is adapted to be connected to a gas source. The concentration detection device's concentration detection interface is connected to the test space, and the concentration detection device is used to detect the oil fume concentration in the test space. The gas analysis device's gas analysis interface is connected to the test space, and the gas analysis device is used to detect the gas concentration in the test space.

[0008] The anti-oil fume testing system for the gas detector can test the anti-oil fume capability of the gas detector, and evaluate the response characteristics and sensitivity of the gas detector in the oil fume environment.

[0009] According to some embodiments of the present application, the oil fume generating device comprises an oil fume generating box, an oil container and a heater, the oil fume generating box has an installation space therein, the oil container is arranged in the installation space, the oil container is suitable for containing oil, and the heater is arranged in the installation space and used for heating the oil to generate the oil fume.

[0010] According to some embodiments of the present application, the oil fume generating device further comprises a power control module, the power control module is electrically connected with the heater, and the power control module is used for controlling the heating power and heating time of the heater.

[0011] According to some embodiments of the present application, the oil fume generating device further comprises an oil temperature detector, the oil temperature detector is arranged in the installation space, the oil temperature detector is communicatively connected with the power control module, the oil temperature detector is used for detecting the oil temperature of the oil to obtain corresponding oil temperature information, and the oil temperature information is sent to the power control module.

[0012] According to some embodiments of the present application, a communication pipe is arranged between the oil fume generating device and the testing box, the oil fume generating device communicates with the testing space through the communication pipe, a first air supply device is arranged in the communication pipe, and the air supply direction of the first air supply device is from the oil fume generating device to the testing space.

[0013] According to some embodiments of the present application, the gas interface communicates with the testing space through the communication pipe.

[0014] According to some embodiments of the present application, a one-way valve is arranged in the communication pipe, the one-way valve is unidirectionally open from the oil fume generating device to the testing space, and the gas interface is located downstream of the one-way valve in the flow direction of the oil fume.

[0015] According to some embodiments of the present application, the anti-oil fume testing system for the gas detector further comprises at least one second air supply device, and the second air supply device is arranged in the testing space.

[0016] According to some embodiments of the present application, the testing box is provided with a plurality of quick interfaces which communicate with the testing space, the concentration detection interface communicates with the testing space through a corresponding quick interface, and the gas analysis interface communicates with the testing space through a corresponding quick interface.

[0017] According to some embodiments of the present application, the oil fume resistance test system for the gas detector further comprises a first temperature detector and a second temperature detector, the first temperature detector is at least partially arranged in the test space, the first temperature detector is used for detecting the air temperature in the test space, and the second temperature detector is at least partially arranged in the oil fume generating device, and the second temperature detector is used for detecting the air temperature in the oil fume generating device.

[0018] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of the oil fume resistance test system according to the embodiments of the present application.

[0020] Reference signs:

[0021] Test box 1; first quick connector 11; second quick connector 12; third quick connector 13; fourth quick connector 14;

[0022] Oil fume generating device 2; oil fume generating box 21; oil container 22; heater 23; power supply control module 24; oil temperature detector 25; clamp 26;

[0023] Gas connector 3;

[0024] Concentration detection device 4; concentration detection connector 41; concentration detection inlet 411; concentration detection outlet 412; first hose 413; second hose 414;

[0025] Gas analysis device 5; gas analysis connector 51; gas analysis inlet 511; gas analysis outlet 512; third hose 513; fourth hose 514;

[0026] Communication pipe 6; first air supply device 61;

[0027] Second air supply device 7;

[0028] First temperature detector 8;

[0029] Second temperature detector 9;

[0030] Oil fume resistance test system 10. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0033] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0034] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, 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 or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] The following will be described in detail Figure 1 The anti-oil fume test system 10 for the gas detector according to the embodiments of the present application is described in detail.

[0036] Referring to Figure 1As shown, the anti-oil fume test system 10 for the gas detector according to the embodiment of the utility model, including: test box 1, oil fume generating device 2, gas interface 3, concentration detection device 4 and gas analysis device 5, test box 1 has test space inside, the gas detector is suitable for placing in test space, oil fume generating device 2 is communicated with test space, oil fume generating device 2 is used to generate oil fume, and oil fume can enter test space to make test space form oil fume environment, gas interface 3 is communicated with test space, and gas interface 3 is suitable for accessing gas source, and gas source can input gas into test space through gas interface 3, and the concentration detection interface 41 of concentration detection device 4 is communicated with test space, and concentration detection device 4 is used to detect the oil fume concentration in test space, and the gas analysis interface 51 of gas analysis device 5 is communicated with test space, and gas analysis device 5 is used to detect the gas concentration in test space, and the anti-oil fume test system 10 can carry out the anti-oil fume test of gas detector, to evaluate the response characteristic and sensitivity of gas detector under the oil fume environment, can take effective measures to improve the anti-oil fume interference ability of gas detector, and can be tested and verified through the anti-oil fume test system 10 multiple times. Wherein, the gas can be methane and other combustible gas.

[0037] It can be understood that, in the oil fume-free environment, when the gas detector detects the preset gas concentration, the gas detector can alarm through sound and / or light, etc., the gas detector is usually used in the kitchen and other oil fume environment, in the oil fume environment, the oil fume may have an impact on the response characteristic and sensitivity of the gas detector, the oil fume generated by the oil fume generating device 2 can enter the test space to simulate the real oil fume environment, the concentration detection device 4 can detect the oil fume concentration in the test space in real time, when the oil fume concentration in the test space reaches the preset oil fume concentration, the gas is input into the test space through the gas interface 3, and the gas analysis device 5 can detect the actual gas concentration in the test space in real time, when the gas detector alarms, the test personnel can record the actual gas concentration in the test space measured by the gas analysis device 5 at this time, and compare the difference between the preset gas concentration and the actual gas concentration, to determine whether the difference is within the allowable range, if the difference is within the allowable range, it is judged that the anti-oil fume interference performance of the gas detector is qualified, if the difference is outside the allowable range, it is judged that the anti-oil fume interference performance of the gas detector is unqualified. Through the anti-oil fume performance test of the gas detector by the anti-oil fume test system 10, the anti-oil fume interference ability of the gas detector in the oil fume environment can be evaluated.

[0038] The anti-oil fume test system 10 for the gas detector according to the embodiment of the utility model, the test space in test box 1 can be ventilated with oil fume and gas to test the anti-oil fume ability of the gas detector, and evaluate the response characteristic and sensitivity of the gas detector in the oil fume environment.

[0039] It should be noted that the gas analysis device 5 can have a filtering device, when the oil fume, air and gas in the test space enter the gas analysis device 5, the filtering device can filter out the oil fume particles, so as to avoid the influence of the oil fume on the test accuracy of the gas analysis device 5, and ensure that the analysis device 5 can accurately measure the actual gas concentration in the test space. When the oil fume resistance test of the gas detector is carried out, the test personnel can record the data measured by the concentration detection device 4 and the data measured by the gas analysis device 5, and the gas analysis device 5 can also record the change of the actual gas concentration in the test space in each oil fume resistance test. The concentration detection device 4 can detect and record the oil fume concentration in the test space to construct a database, which can provide support for later test data.

[0040] In some embodiments of the present application, as shown in Figure 1 The oil fume generating device 2 includes an oil fume generating box 21, an oil container 22 and a heater 23. The oil fume generating box 21 has an installation space inside. The oil container 22 is arranged in the installation space. The oil container 22 is suitable for containing oil. The heater 23 is arranged in the installation space. The heater 23 is used for heating the oil to generate oil fume. The oil fume can enter the test space from the installation space to simulate the working scene of the gas detector in the oil fume environment. The oil container 22 can be a test pot. The heater 23 can be an electric stove. The oil can be cooking oil.

[0041] As shown in Figure 1 The volume of the installation space (the containing volume of the oil fume generating box 21) is A×B×C, wherein A=1.1m, B=0.8m and C=0.55m. When the oil fume resistance test of the gas detector is carried out, the oil fume generated by the heater 23 heating the oil can first fill the installation space. After the oil fume environment in the installation space reaches stability, the oil fume diffuses into the test space from the installation space, so as to reduce the fluctuation of the oil fume concentration in the test space, better simulate the oil fume environment of the test space, and thus facilitate to improve the accuracy of the oil fume resistance test system 10.

[0042] In some embodiments of the present application, as shown in Figure 1 The oil fume generating device 2 further includes a power control module 24. The power control module 24 is electrically connected with the heater 23. The power control module 24 is used for controlling the heating power and heating time of the heater 23. When the oil fume resistance test of the gas detector is carried out, the power control module 24 can control the heating power and heating time of the heater 23 according to the test requirements, so as to control the heating rate of the oil and the amount of the generated oil fume. The oil fume generating device 2 can generate oil fume with different concentrations. The test personnel can carry out the oil fume resistance test under different conditions according to the requirements, so as to facilitate to improve the universality of the oil fume resistance test system 10.

[0043] In some embodiments of the present application, as shown inFigure 1 As shown, the oil fume generating device 2 further comprises an oil temperature detector 25 arranged in the installation space, the oil temperature detector 25 is in communication connection with the power control module 24, the oil temperature detector 25 is used for detecting the oil temperature of the oil liquid to obtain corresponding oil temperature information, and the oil temperature information is sent to the power control module 24, so that the power control module 24 accurately controls the power of the heater 23, and the oil liquid in the oil liquid container 22 is heated to a set temperature to generate standard oil fume gas. The set temperature is the smoking point temperature of the oil liquid, and the oil temperature detector 25 can be a temperature sensor.

[0044] It can be understood that when the oil fume resistance test of the gas detector is carried out, the power control module 24 can control the heater 23 to heat the oil liquid in the oil liquid container 22, the oil temperature detector 25 detects the temperature of the oil liquid in real time, and the oil temperature information is sent to the power control module 24, when the oil temperature rises to the smoking point of the oil liquid before 42℃, the power control module 24 can adjust the power of the heater 23 to make the oil temperature rise steadily, the temperature rising speed is 5℃ / min~6℃ / min, until the oil temperature reaches the smoking point of the oil liquid and the allowable range, the oil liquid generates oil fume and fills the installation space, after maintaining the temperature range for 30s, the power control module 24 controls the heater 23 to stop heating the oil liquid, at this time, the oil fume gas in the installation space is the standard oil fume gas, wherein the temperature of the smoking point can be 205℃~220℃, and the tolerance is 10%. The effective use time of the standard oil fume gas prepared at one time is 10min, and when it is prepared again, the oil fume generating device 2 should be ventilated and purified.

[0045] The power control module 24 can control the power of the heater 23 to realize the heating and cooling of the oil liquid, when the temperature of the oil liquid is lower than the set temperature, the power control module 24 controls the heater to heat the oil liquid, when the temperature of the oil liquid is higher than the set temperature, the power control module 24 controls the heater to stop heating the oil liquid, so that the temperature of the oil liquid is cooled to the set temperature, the oil fume gas in the installation space is the standard oil fume gas, the power control module 24 can also control the time of standard oil fume generation through program setting, the time and temperature reservation function can be realized, and the power control module 24 can also realize the standard oil fume concentration setting, so that the oil fume concentration of the installation space reaches the preset oil fume concentration.

[0046] In some embodiments of the utility model, the power control module 24 can include a control panel, the control panel can include a display screen, a button and a control circuit and the like components, the display screen can display the current heating power, heating time, oil temperature of oil liquid and the like, the button can be used to set the heating power and heating time, and the control circuit can convert the set parameters (heating power, heating time) into control signals to control the heating power and heating time of the heater 23.

[0047] In some embodiments of the utility model, refer to Figure 1 As shown in the figure, the oil fume generating device 2 further comprises a clamp 26, which can be arranged in the mounting space and fixedly connected with the bottom wall of the mounting space, and the clamp 26 can be used for fixing the oil temperature detector 25.

[0048] In some embodiments of the utility model, refer to Figure 1 As shown in the figure, the oil fume generating device 2 and the test box 1 are provided with a communication pipe 6, the oil fume generating device 2 communicates with the test space through the communication pipe 6, the first air supply device 61 is arranged in the communication pipe 6, the air supply direction of the first air supply device 61 is from the oil fume generating device 2 to the test space, the first air supply device 61 can blow the oil fume in the oil fume generating device 2 into the test space through the communication pipe 6, so that the simulated kitchen environment containing standard oil fume gas is formed in the test box 1, so as to facilitate the anti-oil fume test of the gas detector.

[0049] In some embodiments of the utility model, refer to Figure 1 As shown in the figure, the gas interface 3 communicates with the test space through the communication pipe 6, and the gas output by the gas source can first enter the communication pipe 6 through the gas interface 3 and then be blown into the test space by the first air supply device 61.

[0050] In some embodiments of the utility model, the length of the communication pipe 6 is 1.5 m, and the inner diameter is 0.2 m.

[0051] In some embodiments of the utility model, a one-way valve is arranged in the communication pipe 6, the one-way valve is unidirectionally communicated from the oil fume generating device 2 to the test space, in the flow direction of the oil fume, the gas interface 3 is located downstream of the one-way valve, the one-way valve can prevent the gas from entering the oil fume generating device 2, so that the gas in the oil fume generating device 2 can be prevented from being heated, accidents can be prevented, and the safety of the anti-oil fume test system 10 can be improved.

[0052] In some embodiments of the utility model, refer to Figure 1 As shown in the figure, the anti-oil fume test system 10 for the gas detector further comprises at least one second air supply device 7, which is arranged in the test space, so that the gas in the test space circulates to form a circulating air flow, the gas detector can be tested in the environment with stable and uniform oil fume concentration and gas concentration, so that the accuracy of the anti-oil fume test can be improved.

[0053] In some embodiments of the utility model, refer to Figure 1As shown, the test space is a cubic space with a size of 0.3m*0.3m*0.3m, the oil fume resistance test system 10 comprises two second air supply devices 7, the two second air supply devices 7 are arranged at opposite corners of the test box 1 respectively, the air supply directions of the two second air supply devices 7 are opposite and not collinear, so as to improve the flow speed of the gas circulation flow in the test space, improve the effect of the gas circulation flow, and further improve the stability and uniformity of the oil fume concentration and the gas concentration in the test space.

[0054] In some embodiments of the utility model, refer to Figure 1 As shown, the test box 1 is provided with a plurality of quick interfaces in communication with the test space, the concentration detection interface 41 is in communication with the test space through a corresponding quick interface, the gas in the test space can enter the concentration detection device 4 in turn through the quick interface corresponding to the concentration detection interface 41 and the concentration detection interface 41, the concentration detection device 4 can detect the concentration of the oil fume in the test space in real time, the gas analysis interface 51 is in communication with the test space through a corresponding quick interface, the gas in the test space can enter the gas analysis device 5 in turn through the quick interface corresponding to the gas analysis interface 51 and the gas analysis interface 51, and the gas analysis device 5 can detect the concentration of the gas in the test space in real time.

[0055] Refer to Figure 1 As shown, the concentration detection interface 41 can comprise a concentration detection inlet 411 and a concentration detection outlet 412, the plurality of quick interfaces comprise a first quick interface 11 and a second quick interface 12, the first quick interface 11 corresponds to the concentration detection inlet 411, the second quick interface 12 corresponds to the concentration detection outlet 412, the first quick interface 11 can be in communication with the concentration detection inlet 411 through a first hose 413, the second quick interface 12 can be in communication with the concentration detection outlet 412 through a second hose 414, and the gas in the test space can enter the concentration detection device 4 in turn through the first quick interface 11, the first hose 413 and the concentration detection inlet 411, so that the concentration detection device 4 detects the concentration of the oil fume in the test space, and then the gas flows back into the test space in turn through the concentration detection outlet 412, the second hose 414 and the second quick interface 12, so as to reduce the change of the oil fume concentration of the gas in the test space, thereby facilitating the accuracy of the concentration detection device 4 in measuring the oil fume concentration, and further improving the accuracy of the oil fume resistance test.

[0056] The gas analysis interface 51 can include a gas analysis inlet 511 and a gas analysis outlet 512, and the plurality of quick interfaces further include a third quick interface 13 and a fourth quick interface 14, the third quick interface 13 corresponds to the gas analysis inlet 511, the fourth quick interface 14 corresponds to the gas analysis outlet 512, the third quick interface 13 can be in communication with the gas analysis inlet 511 through a third hose 513, and the fourth quick interface 14 can be in communication with the gas analysis outlet 512 through a fourth hose 514, the gas in the test space can enter the gas analysis device 5 in sequence through the third quick interface 13, the third hose 513 and the gas analysis inlet 511, so as to detect the concentration of the gas in the test space, and then the gas flows back into the test space in sequence through the gas analysis outlet 512, the fourth hose 514 and the fourth quick interface 14 by the gas analysis device 5, so as to reduce the concentration change of the gas in the test space, thereby facilitating the improvement of the accuracy of the gas analysis device 5 in measuring the concentration of the gas, and further improving the accuracy of the anti-oil smoke test.

[0057] In some embodiments of the utility model, the first quick interface 11, the second quick interface 12, the third quick interface 13 and the fourth quick interface 14 are all fixedly connected with the test box 1 in a welding manner, so as to ensure the sealing property of the test space, the caliber of each quick interface is 0.006 m, and the pipe diameter of the first hose 413, the second hose 414, the third hose 513 and the fourth hose 514 is respectively matched with the first quick interface 11, the second quick interface 12, the third quick interface 13 and the fourth quick interface 14.

[0058] In some embodiments of the utility model, referring to Figure 1 As shown in the figure, the anti-oil smoke test system 10 for the gas detector further includes a first temperature detector 8 and a second temperature detector 9, the first temperature detector 8 is at least partially arranged in the test space, and is used for detecting the air temperature in the test space, the second temperature detector 9 is at least partially arranged in the oil smoke generating device 2, and is used for detecting the air temperature in the oil smoke generating device 2, the test personnel can read the data measured by the first temperature detector 8 to obtain the air temperature in the test space, and the test personnel can read the data measured by the second temperature detector 9 to obtain the air temperature in the oil smoke generating device 2. Wherein, the first temperature detector 8 and the second temperature detector 9 can both be thermometers.

[0059] In some embodiments of the utility model, test box 1 and oil fume generating device 2 can be made of transparent glass, first temperature detector 8 and second temperature detector 9 are both mercury thermometer, the mercury ball of first temperature detector 8 is located in test space, the graduation line of first temperature detector 8 is located outside test space, the mercury ball of second temperature detector 9 is located in installation space, the graduation line of second temperature detector 9 is located outside installation space, the temperature in test space can be observed by test personnel through first temperature detector 8, the temperature in installation space can be observed by test personnel through second temperature detector 9, when the temperature in oil fume generating device 2 and / or the temperature in test space appears abnormal state of temperature being too high, test personnel can discover abnormal state in time through first temperature detector 8 and / or second temperature detector 9, and stop the anti-oil fume test of gas detector, so that the occurrence of accident can be avoided, and the safety of anti-oil fume test device is improved.

[0060] The anti-oil fume test system 10 for the gas detector according to the utility model embodiment can generate a standard oil fume environment, realize the anti-oil fume test of the gas detector, detect the alarm performance of the gas detector in the oil fume environment, evaluate the reliability and safety of the gas detector working in the oil fume environment, take effective measures to improve the environmental adaptability of the gas detector, has important practical value, can make up for the blank of the current national standard in this field, is conducive to promoting the perfection and development of the standard, meets the trend of the market demand for the anti-oil fume test of the gas detector, has broad market application prospect and popularization value.

[0061] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification.

[0062] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

Claims

1. An oil fume resistance test system for a gas detector, characterized by, The test box (1) has a test space inside, and the gas detector is adapted to be placed in the test space. An oil fume generating device (2) is in communication with the test space, and the oil fume generating device (2) is used to generate oil fume. A gas interface (3) is in communication with the test space, and the gas interface (3) is adapted to access a gas source. A concentration detection device (4) has a concentration detection interface (41) in communication with the test space, and the concentration detection device (4) is used to detect the oil fume concentration in the test space. A gas analysis device (5) has a gas analysis interface (51) in communication with the test space, and the gas analysis device (5) is used to detect the gas concentration in the test space. The oil fume generating device (2) comprises:

2. The anti-cooking test system for a gas detector of claim 1, wherein, An oil fume generating box (21) has an installation space inside. An oil container (22) is arranged in the installation space, and the oil container (22) is adapted to contain oil. A heater (23) is arranged in the installation space, and the heater (23) is used to heat the oil to generate the oil fume. The oil fume generating device (2) further comprises a power control module (24) electrically connected with the heater (23), and the power control module (24) is used to control the heating power and heating time of the heater (23).

3. The anti-cooking test system for a gas detector of claim 2, wherein, The oil fume generating device (2) further comprises an oil temperature detector (25) arranged in the installation space, and the oil temperature detector (25) is communicatively connected with the power control module (24), and the oil temperature detector (25) is used to detect the oil temperature of the oil to obtain corresponding oil temperature information and send the oil temperature information to the power control module (24).

4. The anti-cooking test system for a gas detector of claim 3, wherein, A communication pipe (6) is arranged between the oil fume generating device (2) and the test box (1), the oil fume generating device (2) is in communication with the test space through the communication pipe (6), and a first air supply device (61) is arranged in the communication pipe (6), and the air supply direction of the first air supply device (61) is from the oil fume generating device (2) to the test space.

5. The anti-cooking test system for a gas detector of any one of claims 1-4, wherein, The gas interface (3) is in communication with the test space through the communication pipe (6).

6. The anti-cooking test system for a gas detector of claim 5, wherein, A one-way valve is arranged in the communication pipe (6), the one-way valve is unidirectionally open from the oil fume generating device (2) to the test space, and in the flow direction of the oil fume, the gas interface (3) is located downstream of the one-way valve.

7. The anti-cooking test system for a gas detector of claim 6, wherein, Further comprising at least one second air supply device (7) arranged in the test space.

8. The anti-cooking test system for a gas detector of claim 1, wherein, The test box (1) is provided with a plurality of quick interfaces in communication with the test space, the concentration detection interface (41) is in communication with the test space through a corresponding quick interface, and the gas analysis interface (51) is in communication with the test space through a corresponding quick interface.

9. The anti-cooking test system for a gas detector of claim 1, wherein, ​ 10. The anti-cooking test system for a gas detector of claim 1, wherein, The first temperature detector (8) is arranged at least partially in the test space and is used to detect the air temperature in the test space, and the second temperature detector (9) is arranged at least partially in the oil fume generating device (2) and is used to detect the air temperature in the oil fume generating device (2).