Gas detection device
By using condensers and gas-liquid separators to handle water vapor in the gas detection device, the problems of pressure balance and accuracy of detection results under low-temperature and constant-temperature conditions are solved, thus achieving reliability and accuracy in gas detection.
Patent Information
- Application Number
- CN202422234049.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-09-12
AI Technical Summary
In existing climate environment simulation tests, the gas detection device cannot maintain the pressure balance inside the chamber, and the water vapor in the discharged gas affects the detection results.
The system uses a condenser inside the chamber to condense water vapor in the gas into liquid water, and then discharges the liquid water through a gas-liquid separator and a drain pump. Combined with the detection components, it detects the concentration of smoke particles and combustible gases, maintains pressure balance inside the chamber, and prevents water vapor from affecting the detection results.
It achieves pressure balance within the chamber under low-temperature constant temperature conditions, ensuring the accuracy of gas detection results and avoiding the influence of water vapor caused by the introduction of additional external air.
Smart Images
Figure CN223471014U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to climate environment simulation test technical field especially relates to a gas detection device. BACKGROUND
[0002] When using a test chamber to carry out climate environment simulation test, the sample to be tested needs to be placed in the sealed test chamber for relevant test. Some samples may leak, explode, etc. during the test. For example, during the process of simulating the influence of different environmental conditions on the battery in the environmental test chamber, the battery may be damaged, expanded, on fire, exploded, leaked, etc. and the test personnel need to handle the emergency to reduce the danger degree of the accident. However, the prior art judges the internal condition of the chamber by continuously discharging the gas in the test chamber to detect the combustible gas in the discharged gas. However, under low-temperature and constant-temperature conditions, continuously extracting the internal gas will cause the internal pressure of the chamber to decrease. To ensure pressure balance, the prior art uses a pipeline to transport gas from the outside to the chamber. However, as the moisture in the air is brought into the chamber, frost will form on the evaporator and the energy consumption and heat exchange efficiency will decrease. In addition, the water vapor in the gas will also affect the test result when the discharged gas is detected.
[0003] Therefore, there is an urgent need for a gas detection device that can maintain the pressure balance in the chamber and ensure that the water vapor in the discharged gas does not affect the test result. UTILITY MODEL CONTENT
[0004] The utility model aims to provide a kind of gas detection device, to can maintain the pressure balance in the chamber, again can guarantee that the water vapor in the discharged gas does not affect the test result.
[0005] To achieve this purpose, the utility model uses the following technical solutions:
[0006] A kind of gas detection device, comprising:
[0007] Chamber, internal formation has chamber, sample to be tested is placed in the chamber, the chamber is provided with the gas outlet hole and back gas hole that communicate with the chamber;
[0008] Detection component, one end is communicated with the gas outlet hole by pipeline, the other end is communicated with the back gas hole by the pipeline, the detection component can detect the smoke particle concentration and / or combustible gas concentration of the gas in the chamber;
[0009] Condensing piece, setting in the detection component upstream, to make the water vapor in the gas condense into liquid water.
[0010] As preferred, the gas detection device further comprises a gas-liquid separation member, which is arranged between the condensing member and the detection assembly, and a bottom end of the gas-liquid separation member is communicated with the water drainage pump, and the water drainage pump is used for draining the liquid water in the gas-liquid separation member.
[0011] As preferred, a one-way valve is further arranged between the gas-liquid separation member and the water drainage pump.
[0012] As preferred, a filter member is further arranged between the one-way valve and the water drainage pump.
[0013] As preferred, the detection assembly comprises a first detection member and a second detection member which are communicated in sequence, the first detection member is used for detecting the particulate matter concentration in the gas, and the second detection member is used for detecting the combustible gas concentration in the gas.
[0014] As preferred, the first detection member and the second detection member are both communicated with an alarm assembly.
[0015] As preferred, a pumping member is arranged between the first detection member and the second detection member, and the pumping member can pump the gas in the chamber.
[0016] As preferred, a filter member is arranged between the first detection member and the pumping member.
[0017] As preferred, a water drainage hole is further arranged at a bottom end of the box body.
[0018] As preferred, the box body is provided with a heat preservation layer.
[0019] The beneficial effects of the present application are as follows:
[0020] The utility model discloses a kind of gas detection devices. The device includes box body, detection assembly and condensing member. Chamber is formed in box body inside, and sample to be tested is placed in chamber, and box body is provided with gas outlet hole and back gas hole communicated with chamber;Detection assembly one end is communicated with gas outlet hole by pipeline, and the other end is communicated with back gas hole by pipeline, and detection assembly can detect the smoke particle concentration and / or combustible gas concentration of gas in chamber;Condensing member is arranged in the upstream of detection assembly, to make the water vapor in gas condense into liquid water. This device can not only maintain the pressure balance in box body, but also does not need to introduce air from outside to maintain pressure alone, and can also filter water vapor in gas in time, ensure that it does not affect the detection result of gas. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is the structure schematic view of the gas detection device provided by the utility model.
[0022] In the drawing:
[0023] 10, box; 11, chamber; 12, air outlet hole; 13, air return hole; 14, drain hole; 15, insulation layer; 16, movable door;
[0024] 20, detection assembly; 21, first detection piece; 22, second detection piece; 23, pump suction piece;
[0025] 30, pipeline;
[0026] 40, condensing piece;
[0027] 50, gas-liquid separation piece;
[0028] 60, drain pump;
[0029] 70, one-way valve;
[0030] 80, filtering piece. DETAILED DESCRIPTION
[0031] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.
[0032] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0033] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0034] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.
[0035] A gas detection device is provided in the present example, as shown in the figure, which comprises a box body 10, a detection assembly 20, and a condensing member 40. The box body 10 has a chamber 11 formed inside, in which the sample to be tested is placed. The box body 10 is provided with an air outlet hole 12 and an air return hole 13 which communicate with the chamber 11. The detection assembly 20 communicates with the air outlet hole 12 and the air return hole 13 through pipes 30 at one end and the other end, respectively. The detection assembly 20 can detect the concentration of smoke particles or / and the concentration of flammable gas in the chamber 11. The condensing member 40 is arranged upstream of the detection assembly 20 to condense the water vapor in the gas into liquid water. Figure 1 In this device, the gas in the chamber 11 can first enter the condensing member 40 through the air outlet hole 12, and the water vapor in the gas is condensed into liquid water in the condensing member 40, thereby ensuring that the gas entering the detection assembly 20 is not affected by water vapor, and further ensuring the accuracy of the detection results of the detection assembly 20. In addition, the detected gas can enter the air return hole 13 through the pipes 30, thereby returning to the chamber 11 again, thereby ensuring the constancy of the pressure in the chamber 11, and not bringing additional water vapor from the outside air into the chamber 11, thereby ensuring the heat exchange effect.
[0036] It is worth noting that in the present embodiment, the condensing member 40 can be a condenser or any other structure such as a condensing fan. Further, as shown in the figure, the side wall, top and bottom of the box body 10 are provided with a heat preservation layer 15, specifically, the inner and outer layers of the box body 10 and the movable door 16 are both sheet metal parts, and the two layers of sheet metal parts are filled with the heat preservation layer 15, which can be any structure such as foam or polyurethane. This arrangement can ensure the constancy of the temperature in the box body 10, reduce heat loss, and ensure the accuracy of the test results. In addition, in order to facilitate the taking and placing of the sample to be tested, a movable door 16 is provided on one side of the box body 10, which can open or close the chamber 11, thereby facilitating the taking and placing of the sample to be tested. In addition, the box body 10 is also connected with a compressor and other components to provide cold energy for the test, or a humidifier is provided to provide humidified air to the chamber 11, thereby ensuring that the chamber 11 can maintain a predetermined temperature and humidity.
[0037] Figure 1 As shown in the figure, the side wall, top and bottom of the box body 10 are provided with a heat preservation layer 15, specifically, the inner and outer layers of the box body 10 and the movable door 16 are both sheet metal parts, and the two layers of sheet metal parts are filled with the heat preservation layer 15, which can be any structure such as foam or polyurethane. This arrangement can ensure the constancy of the temperature in the box body 10, reduce heat loss, and ensure the accuracy of the test results. In addition, in order to facilitate the taking and placing of the sample to be tested, a movable door 16 is provided on one side of the box body 10, which can open or close the chamber 11, thereby facilitating the taking and placing of the sample to be tested. In addition, the box body 10 is also connected with a compressor and other components to provide cold energy for the test, or a humidifier is provided to provide humidified air to the chamber 11, thereby ensuring that the chamber 11 can maintain a predetermined temperature and humidity.
[0038] As shown in the figure, the side wall, top and bottom of the box body 10 are provided with a heat preservation layer 15, specifically, the inner and outer layers of the box body 10 and the movable door 16 are both sheet metal parts, and the two layers of sheet metal parts are filled with the heat preservation layer 15, which can be any structure such as foam or polyurethane. This arrangement can ensure the constancy of the temperature in the box body 10, reduce heat loss, and ensure the accuracy of the test results. In addition, in order to facilitate the taking and placing of the sample to be tested, a movable door 16 is provided on one side of the box body 10, which can open or close the chamber 11, thereby facilitating the taking and placing of the sample to be tested. In addition, the box body 10 is also connected with a compressor and other components to provide cold energy for the test, or a humidifier is provided to provide humidified air to the chamber 11, thereby ensuring that the chamber 11 can maintain a predetermined temperature and humidity.Figure 1 As shown, in order to conveniently deal with the condensed liquid water, the gas detection device further comprises a gas-liquid separation member 50, which is arranged between the condensing member 40 and the detection assembly 20, the bottom end of the gas-liquid separation member 50 is communicated with a drainage pump 60, and the drainage pump 60 is used to drain the liquid water in the gas-liquid separation member 50. The arrangement can make the gas and liquid water in the condensing member 40 enter the gas-liquid separation member 50, the gas enters the detection assembly 20 due to the density, the detection is completed, the liquid water is gathered at the bottom of the gas-liquid separation member 50 under the action of gravity, and the liquid water is drained under the action of the drainage pump 60, so that the structure is simple, convenient to use, and high in practicability.
[0039] In addition, as shown in Figure 1 The gas-liquid separation member 50 and the drainage pump 60 are further provided with a one-way valve 70, the one-way valve 70 can ensure the one-way flow of the liquid water (without backflow), and can ensure that air is not extracted from the external environment of the box 10 into the detection assembly 20 through the pipeline, so that the smoke particle concentration and / or the combustible gas concentration of the gas in the detection assembly 20 can be normally detected, and a good detection result is ensured.
[0040] In addition, as shown in Figure 1 The one-way valve 70 and the drainage pump 60 are further provided with a filter 80. During the reaction process, particles may be generated, and larger particles may be settled in the liquid water during the condensation process, which may cause the drainage pump 60 to be blocked. The filter 80 arranged before the drainage pump 60 can filter out larger particles and related impurities, so as to ensure the normal operation of the drainage pump 60.
[0041] Considering that the gas component after the reaction is relatively large, as shown in Figure 1 The detection assembly 20 comprises a first detection member 21 and a second detection member 22 which are communicated in sequence, the first detection member 21 is used to detect the concentration of particulate matter in the gas, and the second detection member 22 is used to detect the concentration of combustible gas in the gas. This arrangement can sequentially detect the concentrations of particulate matter and combustible gas in the gas, so as to timely understand the actual situation of the reaction inside the box 10. It should be noted that the first detection member 21 is a smoke sensor, which is mainly used to detect the smoke particle concentration in the gas, and the second detection member 22 is a gas sensor, which is mainly used to detect the content of components such as hydrocarbons, carbon monoxide and hydrogen, so as to determine whether there is a burning or explosion situation in the box 10.
[0042] In order to know the abnormal situation in the box 10 in the first time, the first detection piece 21 and the second detection piece 22 are communicated with the alarm assembly. The setting can alarm immediately when the detection value of the first detection piece 21 or the second detection piece 22 is abnormal, so that the tester knows the situation. It should be pointed out that in the embodiment, the alarm assembly includes an information processor and an alarm, wherein the first detection piece 21 and the second detection piece 22 are electrically connected with the information processor, the information processor is electrically connected with the alarm, when the detection value of the first detection piece 21 or the second detection piece 22 exceeds a certain standard value, the signal processor receives the information and feeds back to the alarm to complete the alarm, so that the tester can know the actual situation in time and avoid time expansion.
[0043] In order to ensure that the gas in the chamber 11 can quickly enter the detection assembly 20, as shown, the first detection piece 21 and the second detection piece 22 are also provided with a pumping piece 23, which can pump the gas in the chamber 11. The pumping piece 23 can quickly extract the gas in the chamber 11, so as to ensure that the gas in the chamber 11 can be detected in time, so that the tester can know the reaction in the box 10 in time. Figure 1
[0044] In addition, as shown in the figure, the first detection piece 21 and the pumping piece 23 are provided with a filter 80. The filter 80 can filter out the particulate matter in the gas, so as to avoid affecting the detection of the second detection piece 22, and further ensure the accuracy of the detection result; in addition, the filter 80 can also avoid the particulate matter to block the pumping piece 23, so as to prolong the service life of the pumping piece 23. Figure 1
[0045] In order to solve the problem of water accumulation in the box 10, as shown in the figure, the bottom end of the box 10 is also provided with a drain hole 14. By setting the drain hole 14 at the bottom end, the accumulated water generated in the reaction in the box 10 can be discharged in time, so as to ensure the cleanliness of the box 10. Figure 1
[0046] Finally, the use process of the gas detection device in the embodiment is described in combination with the drawings:
[0047] Firstly, open the movable door 16, place the sample to be tested in the chamber 11, and close the movable door 16 for testing;
[0048] Secondly, open the drainage pump 60, the one-way valve 70 and the pumping piece 23 to discharge the gas in the chamber 11 in time;
[0049] Finally, according to the detection results of the first detection piece 21 and the second detection piece 22, the actual situation is judged.
[0050] As shown above, using the gas detection device of the embodiment, the constant of the pressure in the box 10 can be ensured, and the influence of the water vapor generated by the reaction on the detection result can be prevented.
[0051] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments need not and cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A gas detection device, characterized by, The application relates to a gas detection device. The device comprises: a box (10) internally formed with a chamber (11) in which a sample to be tested is placed, the box (10) being provided with an air outlet hole (12) and an air return hole (13) communicating with the chamber (11); a detection assembly (20) one end of which communicates with the air outlet hole (12) through a pipeline (30) and the other end of which communicates with the air return hole (13) through the pipeline (30), the detection assembly (20) being capable of detecting the smoke particle concentration and / or the combustible gas concentration of the gas in the chamber (11); a condensing member (40) arranged upstream of the detection assembly (20) to condense water vapor in the gas into liquid water; the detection assembly (20) comprises a first detection member (21) and a second detection member (22) which communicate in sequence, the first detection member (21) being used for detecting the particle concentration in the gas, and the second detection member (22) being used for detecting the combustible gas concentration in the gas; a pumping member (23) is arranged between the first detection member (21) and the second detection member (22), and the pumping member (23) is capable of pumping the gas in the chamber (11); 2. The gas detection device of claim 1, wherein, a filter member (80) is arranged between the first detection member (21) and the pumping member (23).
3. The gas detection device of claim 2, wherein, The gas detection device further comprises a gas-liquid separation member (50) arranged between the condensing member (40) and the detection assembly (20), and the bottom end of the gas-liquid separation member (50) communicates with a drainage pump (60) used for draining the liquid water in the gas-liquid separation member (50).
4. The gas detection device of claim 3, wherein, A one-way valve (70) is further arranged between the gas-liquid separation member (50) and the drainage pump (60).
5. The gas detection device of claim 1, wherein, A filter member (80) is further arranged between the one-way valve (70) and the drainage pump (60).
6. The gas detection device according to any one of claims 1 to 4, wherein The first detection member (21) and the second detection member (22) are both in communication connection with an alarm assembly.
7. The gas detection device according to any one of claims 1 to 4, wherein The bottom end of the box (10) is further provided with a drainage hole (14). The box (10) is provided with a heat preservation layer (15).