False alarm prevention detection device of gas alarm

Abstract

The utility model discloses a fuel gas alarm false alarm prevention detection device, which comprises a detection box and an evaporator, a housing inner cavity of the evaporator is communicated with the detection box through a hose, the detection box comprises a transparent sealing box body, a plurality of electricity-taking sockets and a clamping seat for installing a fuel gas alarm are arranged in the sealing box body, the side wall of the sealing box body is provided with a vent hole, and the vent hole is communicated with the evaporator. An air extractor is mounted on the air vent, a gas concentration detection sensor is mounted on the inner side wall or the bottom of the sealed box body, and the gas concentration detection sensor is in signal connection with a detector mounted on the outer wall of the sealed box body; the evaporator comprises a crucible and a housing, and the housing is buckled on the upper portion of the crucible. Aiming at the false alarm detection of the gas alarm, various substances which are easy to generate gas in a kitchen environment can be simulated to serve as detection sources; the gas alarm can cooperate with the second set of evaporator to realize mixed detection of two detection objects, so that the detection of the gas alarm is more suitable for the actual use scene, the false alarm can be reduced, and the gas use safety of residents can be improved.

Description

Technical Field

[0001] This utility model relates to the field of detection technology, and to the structural and performance improvement of alarm detection devices, specifically a gas alarm false alarm prevention detection device. Background Technology

[0002] Natural gas is mainly composed of methane and small amounts of ethane, propane, nitrogen, and butane. Due to its high calorific value and low environmental pollution, natural gas has become the main source of household energy that can be centrally supplied.

[0003] For ease of statistics and billing, a gas meter is installed after gas enters the home through the pipeline network, and then connected to the stove. Gas leaks can occur due to factors such as decreased sealing performance of the gas appliances connected after the gas meter or aging of the hoses. Currently, the common method is to use a gas alarm to monitor the indoor gas concentration in real time, triggering an alarm when the concentration exceeds a set range.

[0004] After production, gas alarms must pass inspection before leaving the factory. Gas companies also test the alarms before installation and during regular safety inspections of residential gas usage. According to technical standards, household gas alarms should only detect gas leaks. However, in a kitchen environment, the presence of mixed gases formed by heated cooking oil and seasonings can cause false alarms. Furthermore, if a gas alarm falsely alarms after installation, it will emit an audible alert, which is annoying, and users usually simply disconnect the power to the alarm. The lack of gas leak detection poses a greater safety hazard to residents.

[0005] Therefore, it is necessary to test and monitor the gas alarm before installation by simulating different gases that may be generated in a kitchen environment to ensure that it functions effectively. However, existing gas alarm detection systems or devices mainly target combustible gases such as natural gas as the detection gas source, and there are no suitable systems for detecting fumes or evaporating vapors from cooking oil or seasonings. Utility Model Content

[0006] The purpose of this invention is to provide a gas alarm false alarm detection device to solve the problem that existing gas alarm detection cannot be adapted to the actual conditions of the kitchen and therefore results in false alarms.

[0007] To achieve the purpose of this utility model, the following technical solution is adopted:

[0008] A gas alarm false alarm prevention detection device includes a detection box and an evaporator. The inner cavity of the evaporator's casing is connected to the detection box via a flexible hose. The detection box includes a transparent sealed housing with multiple power outlets and mounting brackets for the gas alarm inside. A vent is provided on the side wall of the sealed housing, and an extraction device is installed on the vent. A gas concentration detection sensor is installed on the inner side wall or bottom of the sealed housing, and the gas concentration detection sensor is connected to a detector mounted on the outer wall of the sealed housing. The evaporator includes a crucible and a casing, with the casing fastened to the upper part of the crucible.

[0009] To further achieve the objectives of this utility model, the following technical solutions may also be adopted:

[0010] As described above, in the gas alarm false alarm detection device, a spare hose is installed on the sealed housing, and the spare hose is used to connect to the second evaporator.

[0011] As described above, the gas alarm false alarm detection device has an openable top cover on the top of the sealed housing. One side of the top cover is hinged to the housing, and the other side of the top cover is connected to the housing by a latch. A handle is installed on the top cover.

[0012] As described above, the gas alarm false alarm detection device has at least two sets of gas concentration detection sensors, with multiple sets of gas concentration detection sensors located at the upper and lower parts of the inner wall of the sealed box.

[0013] The gas concentration detection sensor in the gas alarm false alarm prevention detection device described above is model YK-CSW.

[0014] As described above, the volume of the sealed housing in the gas alarm false alarm detection device is 0.4m³-0.8m³; and 6-15 sets of the card holder are provided.

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] To address false alarm detection in gas alarms, this invention can simulate various substances that readily produce gases in a kitchen environment as detection sources, such as the vapors generated by heating cooking oil, soy sauce, oil, and vinegar. In use, the test substance is added to the crucible of the evaporator, then heated and evaporated, and delivered to the detection chamber via a flexible hose. Furthermore, this invention includes a spare hose, which can be used with a second evaporator to achieve mixed detection of two different substances. This makes the gas alarm detection more closely resemble actual usage scenarios, thereby reducing false alarms and improving residential gas safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 yes Figure 1 Top view.

[0020] Figure label:

[0021] 1-Testing box; 11-Sealed box body; 12-Power socket; 13-Card holder; 14-Evacuation device; 15-Top cover; 16-Handle; 17-Lock;

[0022] 2-Evaporator, 21-Casing, 22-Crucible;

[0023] 3-Hose;

[0024] 4-Gas concentration detection sensor;

[0025] 5-Detector;

[0026] 6-Spare hose. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0028] In the description of the embodiments of this utility model, unless otherwise explicitly limited, terms such as setting, installing, and connecting should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] like Figure 1 , Figure 2 As shown in the figure, the gas alarm false alarm prevention detection device disclosed in this embodiment includes a detection box 1 and an evaporator 2. The inner cavity of the cover 21 of the evaporator 2 is connected to the detection box 1 through a hose 3.

[0030] The detection box 1 in this embodiment includes a sealed box body 11 and a top cover 15. The sealed box body 11 is made of transparent plexiglass, with a wall thickness ranging from 4 to 10 mm and a volume of 0.4 m³ to 0.8 m³. The transparent structure of the sealed box body 11 facilitates quick visual identification of which gas alarm is activating when multiple gas alarms are being tested. Furthermore, the lightweight nature of the transparent plexiglass facilitates cleaning of the inner walls, and the sealing of the detection box 1 can be ensured by using gaskets or adhesive bonding.

[0031] The volume of the detection chamber 1 in this embodiment is reasonably designed to ensure that, during use, the concentration of the test substance provided by the evaporator 2 can typically reach 0.1-5 mg / m³ within 2-4 minutes.

[0032] See Figure 2 As shown, multiple power outlets 12 and gas alarm mounting brackets 13 are provided inside the sealed enclosure 11. In this embodiment, 6-15 sets of mounting brackets 13 are provided, and multiple sets of mounting brackets 13 can be used to test multiple gas alarms simultaneously. The mounting brackets 13 have a quick-release structure, which facilitates the installation and removal of the gas alarms under test and can improve testing efficiency.

[0033] See also Figure 1 As shown, in this embodiment, a vent is opened on the side wall of the sealed box 11, and an air extraction device 14 is installed on the vent. A gas concentration detection sensor 4 is installed on the inner side wall or bottom of the sealed box 11, and the gas concentration detection sensor 4 is connected to the detector 5 installed on the outer wall of the sealed box 11.

[0034] The air extraction port, through the air extraction device 14, can quickly discharge the test material inside the sealed chamber 11 after the test is completed, preventing the test material from sticking to the inner wall of the sealed chamber 11 after cooling, thus improving test accuracy.

[0035] In addition, to improve testing accuracy, an inert gas inlet is installed on the lower side opposite to the exhaust device 14 installed in the sealed chamber 11. That is, before starting the test, inert gas is first filled into the test chamber 1, and at the same time, the air in the test chamber 1 is discharged through the exhaust device 14. This ensures the accurate range of vapor concentration of the test substance and achieves more effective and accurate gas alarm detection.

[0036] In addition, an openable top cover 15 is provided to allow the sealed box 11 to open at the top. One side of the top cover 15 is hinged to the box body, and the other side of the top cover 15 is connected to the box body via a latch 17. A handle 16 is installed on the top cover 15. To ensure the sealing between the top cover 15 and the upper edge of the sealed box 11, sealing gaskets can be installed at corresponding locations on both.

[0037] A spare hose 6 is installed on the sealed housing 11, which is used to connect to the second evaporator 2. This enables mixed detection of two types of detectors, making the gas alarm detection more closely match actual usage scenarios, thereby reducing false alarms and improving the safety of residents using gas.

[0038] like Figure 1As shown, the evaporator 2 in this embodiment includes a crucible 22 and a casing 21, with the casing 21 fastened to the upper part of the crucible 22. The crucible 22 is bottom-heated. During use, the test substance is injected into the crucible 22, and then the crucible is heated by electricity or fuel. The test substance evaporates and is introduced into the sealed housing 11 through a hose 3. The casing 21 has a fastening structure, which facilitates opening for use and cleaning and maintenance of the crucible 22.

[0039] like Figure 2 As shown, this embodiment uses three sets of gas concentration detection sensors, located at the upper and lower parts of the sealed chamber's inner wall. Specifically, at least one pair of gas concentration detection sensors is installed at both the upper and lower parts of the sealed chamber to accommodate the varying densities of the evaporated gases from different test substances, ensuring accurate detection and preventing false alarms. Furthermore, the gas concentration detection sensor is model YK-CSW to accommodate the detection range of various test substances.

[0040] All technical contents not described in detail in this utility model are publicly known technologies.

Claims

1. A gas alarm false alarm detection device, comprising a detection chamber and an evaporator, wherein the inner cavity of the evaporator's casing is connected to the detection chamber via a flexible hose, characterized in that, The detection box includes a transparent sealed box, inside which are provided multiple power outlets and mounting brackets for gas alarms. A vent is opened on the side wall of the sealed box, and a suction device is installed on the vent. A gas concentration detection sensor is installed on the inner side wall or bottom of the sealed box, and the gas concentration detection sensor is connected to a detector installed on the outer wall of the sealed box. The evaporator includes a crucible and a cover, with the cover fastened to the upper part of the crucible.

2. The gas alarm false alarm detection device according to claim 1, characterized in that, A spare hose is installed on the sealed housing, which is used to connect to the second evaporator.

3. The gas alarm false alarm detection device according to claim 1, characterized in that, The top of the sealed box is an openable cover. One side of the cover is hinged to the box body, and the other side of the cover is connected to the box body by a latch. A handle is installed on the top of the cover.

4. The gas alarm false alarm detection device according to claim 1, characterized in that, At least two sets of gas concentration detection sensors are provided, with multiple sets of gas concentration detection sensors located on the upper and lower parts of the inner wall of the sealed box, respectively.

5. The gas alarm false alarm detection device according to claim 1, characterized in that, The gas concentration detection sensor is model YK-CSW.

6. The gas alarm false alarm detection device according to claim 1, characterized in that, The volume of the sealed box is 0.4m³-0.8m³; 6-15 sets of the card holders are provided.

Images