Hydrogen combustion test device

Abstract

The utility model discloses a hydrogen combustion test device, and particularly relates to the field of hydrogen combustion tests, the hydrogen combustion test device comprises a box body, a heat insulation plate is fixedly connected in the middle of an inner cavity of the box body, the inner cavity of the box body is divided into a combustion cavity and an equipment cavity through the heat insulation plate, and a gas inlet pipe is inserted in one side of the box body; one end of the air inlet pipe penetrates through the heat insulation plate and is fixedly connected with a nozzle, and a flow valve is arranged at the end, close to the nozzle, of the air inlet pipe. According to the utility model, firstly, through the scale marks on the surface of the transparent scale plate, the generated flame can be located right ahead of the transparent scale plate when gas sprayed by the spray head burns, and the flame can be detected through the scale marks on the surface of the transparent scale plate and the camera arranged on the rear side of the transparent scale plate; according to the hydrogen combustion flame detector, the length, width and color change of hydrogen combustion flames under different conditions can be visually seen, the specific length and width of the flames can be conveniently known, test use is facilitated, and the test process can be conveniently recorded and checked.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen combustion testing technology, and more specifically, to a hydrogen combustion testing device. Background Technology

[0002] Hydrogen combustion is an effective way to utilize hydrogen energy. When hydrogen comes into contact with oxygen, a chemical reaction occurs at the ignition point, producing a pale blue flame and generating water (gaseous). The characteristics of hydrogen combustion include high calorific value, rapid combustion speed, and almost no environmental pollution impact. Because the main product after combustion is water, the purity of hydrogen has an important impact on its flammability.

[0003] High-purity hydrogen contains fewer impurities, thus its flammability is relatively strong. However, hydrogen mixed with impurities, such as air, carbon dioxide, or other gases, may inhibit combustion. Pressure and temperature also affect the flammability of hydrogen. Under normal pressure, hydrogen burns slowly, but the combustion rate increases with increasing pressure or temperature. In order to know the flame conditions under different temperatures or pressures with the same purity of hydrogen or the same amount of oxygen, a hydrogen combustion test device has been developed to test the combustion process of hydrogen.

[0004] Existing hydrogen combustion test devices mostly test hydrogen combustion by controlling temperature and pressure values ​​and conducting combustion tests through a sealed combustion chamber. The length and width of the flame produced by combustion are inconvenient to measure directly, making it difficult to test the length, width, and color of the hydrogen flame under different conditions. This makes it difficult to obtain specific flame combustion data, thus affecting the effectiveness of use. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a hydrogen combustion test device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydrogen combustion test device, comprising a housing, wherein a heat insulation plate is fixedly connected to the middle of the inner cavity of the housing, the inner cavity of the housing is divided into a combustion chamber and an equipment chamber by the heat insulation plate, an air inlet pipe is inserted into one side of the housing, one end of the air inlet pipe passes through the heat insulation plate and is fixedly connected to a nozzle, and a flow valve is provided at the end of the air inlet pipe near the nozzle;

[0007] An ignition device is provided on the top of the nozzle, and an ignition head is provided on one side of the ignition device. An oxygen content detector is provided at the bottom of the nozzle. A temperature sensor is provided at the bottom of the combustion chamber of the housing. A pressure relief pipe and a gas collection pipe are provided on the top of the housing. A transparent scale plate is fixedly connected to the middle of the combustion chamber of the housing. A camera is provided at the rear of the combustion chamber of the housing.

[0008] An oxygen generator is installed at the top of the equipment cavity of the enclosure, and an oxygen supply pipe is installed on one side of the oxygen generator. A control box is installed at the bottom of the equipment cavity of the enclosure, and a control panel and an observation window are installed on the front of the enclosure.

[0009] Preferably, the flow valve is located in the middle of the equipment cavity of the housing, and the gas supply pipe passes through the heat insulation plate and is connected to the combustion chamber of the housing.

[0010] Preferably, one end of the ignition head corresponds to one end of the nozzle, and the ignition device, oxygen generator, flow valve, oxygen content detector, and temperature sensor are all electrically connected to the control main box.

[0011] Preferably, both the pressure relief pipe and the gas collection pipe are connected to the combustion chamber of the housing, and both the pressure relief pipe and the gas collection pipe are provided with valves in the middle, with the valve in the middle of the pressure relief pipe being a pressure valve.

[0012] Preferably, the surface of the transparent scale plate is provided with two scale lines in different directions. The dividing line between the two scale lines is on the same horizontal plane as the axis of the nozzle. The scale line located at the bottom of the transparent scale plate surface is horizontally marked, and the scale line located at the top of the transparent scale plate surface is vertically marked.

[0013] Preferably, the temperature sensor is located on one side directly below the nozzle, the observation window corresponds to the combustion chamber of the housing, the control panel is electrically connected to the main control box, and corresponds to the equipment chamber of the housing.

[0014] Preferably, the combustion chamber walls of the box are provided with a fire-resistant and heat-insulating layer, and the glass at the observation window (16) position is set as high-temperature explosion-proof glass.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model firstly uses the scale lines on the surface of the transparent scale plate to indicate that when the gas is ejected from the nozzle and burns, the flame position generated is directly in front of the transparent scale plate. Through the scale lines on the surface of the transparent scale plate and the camera set on the back of the transparent scale plate, the changes in the length, width and color of the hydrogen combustion flame under different conditions can be seen intuitively. This makes it easy to know the specific flame length and width, which is convenient for experimental use and for recording and reviewing the experimental process.

[0017] 2. This utility model also facilitates the control of hydrogen delivery volume and delivery rate by setting a flow valve, and facilitates the control of oxygen content by cooperating with the oxygen generator and gas delivery pipe and in conjunction with the oxygen content detector. The pressure relief pipe and pressure valve facilitate the detection and control of pressure values. The temperature sensor can detect the flame temperature generated by combustion, which facilitates measurement and experimentation, and data collection and recording. The data can be viewed through the control panel. The gas collection pipe facilitates the collection of gases generated by combustion and subsequent testing, thereby improving the effectiveness of use.

[0018] In summary, through the interaction of the above-mentioned multiple functions, it is convenient to test the changes in flame length, width, and color of hydrogen combustion under different conditions, to easily determine the specific flame length and width, to facilitate experimental use, and to facilitate recording of the experimental process for later review. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of this utility model.

[0022] Figure 4 This is a frontal cross-sectional view of the present invention.

[0023] Figure 5 For this utility model Figure 1 Schematic diagram of the locally enlarged structure at point A in the middle.

[0024] The attached diagram is labeled as follows: 1. Housing; 2. Insulation plate; 3. Air inlet pipe; 4. Nozzle; 5. Flow valve; 6. Ignition device; 7. Ignition head; 8. Oxygen generator; 9. Gas supply pipe; 10. Main control box; 11. Oxygen content detector; 12. Temperature sensor; 13. Pressure relief pipe; 14. Gas collection pipe; 15. Transparent scale plate; 16. Observation window; 17. Control panel. Detailed Implementation

[0025] 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 protection scope of the present utility model.

[0026] As attached Figure 1-5The hydrogen combustion test device shown includes a housing 1. A heat insulation plate 2 is fixedly connected to the middle of the inner cavity of the housing 1 to improve the heat insulation effect and avoid affecting the normal use of the internal equipment. The inner cavity of the housing 1 is divided into a combustion chamber and an equipment chamber by the heat insulation plate 2. An air inlet pipe 3 is inserted into one side of the housing 1 to facilitate the injection of hydrogen. One end of the air inlet pipe 3 passes through the heat insulation plate 2 and is fixedly connected to a nozzle 4 to facilitate the spraying out for combustion. A flow valve 5 is provided at the end of the air inlet pipe 3 near the nozzle 4 to facilitate the control of the amount of hydrogen passing through.

[0027] An ignition device 6 is installed on the top of the nozzle 4, and an ignition head 7 is installed on one side of the ignition device 6. An oxygen content detector 11 is installed at the bottom of the nozzle 4. A temperature sensor 12 is installed at the bottom of the combustion chamber of the chamber 1. A pressure relief pipe 13 and a gas collection pipe 14 are installed on the top of the chamber 1. A transparent scale plate 15 is fixedly connected to the middle of the combustion chamber of the chamber 1. A camera is installed on the rear side of the combustion chamber of the chamber 1. The ignition device 6 and the ignition head 7 work together to facilitate ignition and combustion. The oxygen content detector 11 can be used to detect the oxygen content inside the combustion chamber. The temperature sensor 12 can be used to detect the temperature change of the combustion flame. The pressure relief pipe 13 and the gas collection pipe 14 can be used to release the gas inside the combustion chamber to achieve the function of pressure relief. The gas inside the combustion chamber after combustion can be collected for testing. The flame height and length can be observed through the transparent scale plate 15. The camera can be used to record the test process for later review.

[0028] An oxygen generator 8 is installed at the top of the equipment cavity of the chamber 1, and a gas supply pipe 9 is installed on one side of the oxygen generator 8. A control box 10 is installed at the bottom of the equipment cavity of the chamber 1. A control panel 17 and an observation window 16 are installed on the front of the chamber 1. When the oxygen generator 8 is started, oxygen can be supplied to the combustion chamber of the chamber 1 through the gas supply pipe 9, which is convenient for combustion testing. The control panel 17 is convenient for control, and the observation window 16 is convenient for observation.

[0029] As attached Figure 3-5 As shown, the flow valve 5 is located in the middle of the equipment cavity of the housing 1, and the gas supply pipe 9 passes through the heat insulation plate 2 and is connected to the combustion chamber of the housing 1. The flow valve 5 can be used to control the amount of hydrogen input, and the gas supply pipe 9 can be used to transport oxygen.

[0030] As attached Figure 2-5 As shown, one end of the ignition head 7 corresponds to one end of the nozzle 4. The ignition device 6, oxygen generator 8, flow valve 5, oxygen content detector 11, and temperature sensor 12 are all electrically connected to the control main box 10. The gas ejected from the nozzle 4 can be ignited through the ignition head 7, and the control main box 10 can be used for convenient control and information collection.

[0031] As attached Figure 1-4As shown, both the pressure relief pipe 13 and the gas collection pipe 14 are connected to the combustion chamber of the housing 1. Both the pressure relief pipe 13 and the gas collection pipe 14 are equipped with valves in the middle. The valve in the middle of the pressure relief pipe 13 is a pressure valve. The pressure relief pipe 13 and the gas collection pipe 14 facilitate pressure relief and gas collection, and at the same time detect internal pressure changes, thereby improving the performance.

[0032] As attached Figure 1-5 As shown, the surface of the transparent scale plate 15 is provided with two scale lines in different directions. The dividing line between the two scale lines is on the same horizontal plane as the axis of the nozzle 4. The scale line at the bottom of the surface of the transparent scale plate 15 is horizontally marked, and the scale line at the top of the surface of the transparent scale plate 15 is vertically marked. The transparent scale plate 15 facilitates the detection of flame length and width and makes it easy to observe.

[0033] As attached Figure 1-4 As shown, the temperature sensor 12 is located directly below the nozzle 4, the observation window 16 corresponds to the combustion chamber of the housing 1, and the control panel 17 is electrically connected to the main control box 10 and corresponds to the equipment cavity of the housing 1. The temperature sensor 12 can detect the flame temperature generated by combustion, and the observation window 16 facilitates observation of the combustion process.

[0034] As attached Figure 1 , 2 As shown, the combustion chamber walls of the housing 1 are all equipped with fire-resistant and heat-insulating layers, and the glass at the observation window 16 position is made of high-temperature explosion-proof glass to improve the fire-resistant and heat-insulating effect of the combustion chamber and prevent damage to the observation window 16.

[0035] Temperature sensor 12, oxygen content detector 11, and pressure values ​​are input into the control main chamber 10 for recording, and the oxygen generator 8 is started to keep the oxygen content inside the combustion chamber of chamber 1 stable, which is convenient for experimental use.

[0036] The working principle of this utility model is as follows: When in use, the hydrogen is connected through the air inlet pipe 3 and the flow valve 5 is opened to allow the hydrogen to be sprayed out through the nozzle 4. At the same time, the hydrogen is ignited by the ignition device 6 and the ignition head 7, so that the hydrogen is burned to produce a flame. The flame length and height are easily observed through the scale lines of the transparent scale plate 15. The flame temperature is detected by the temperature sensor 12, the oxygen content inside the combustion chamber is detected by the oxygen content detector 11, and the test process is easily recorded by the camera.

[0037] When the oxygen content decreases, the oxygen generator 8 is activated to input oxygen through the gas supply pipe 9, which can keep the oxygen inside the combustion chamber stable, making it convenient for testing. The gas collection pipe 14 facilitates the collection of the gas after combustion inside the combustion chamber, which is convenient for later testing. The pressure relief pipe 13 and pressure valve facilitate the pressure relief of the combustion chamber of the housing 1, improving the performance.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydrogen combustion test apparatus, comprising a housing (1), characterized in that: A heat insulation plate (2) is fixedly connected to the middle of the inner cavity of the box (1). The inner cavity of the box (1) is divided into a combustion chamber and an equipment chamber by the heat insulation plate (2). An air inlet pipe (3) is inserted into one side of the box (1). One end of the air inlet pipe (3) passes through the heat insulation plate (2) and is fixedly connected to a nozzle (4). A flow valve (5) is provided at the end of the air inlet pipe (3) near the nozzle (4). An ignition device (6) is provided on the top of the nozzle (4), and an ignition head (7) is provided on one side of the ignition device (6). An oxygen content detector (11) is provided at the bottom of the nozzle (4). A temperature sensor (12) is provided at the bottom of the combustion chamber of the box (1). A pressure relief pipe (13) and a gas collection pipe (14) are provided on the top of the box (1). A transparent scale plate (15) is fixedly connected to the middle of the combustion chamber of the box (1). A camera is provided on the rear side of the combustion chamber of the box (1). An oxygen generator (8) is provided at the top of the equipment cavity of the housing (1), and an air supply pipe (9) is provided on one side of the oxygen generator (8). A control main box (10) is provided at the bottom of the equipment cavity of the housing (1), and a control panel (17) and an observation window (16) are provided on the front side of the housing (1).

2. The hydrogen combustion test apparatus according to claim 1, characterized in that: The flow valve (5) is located in the middle of the equipment cavity of the housing (1), and the gas supply pipe (9) passes through the heat insulation plate (2) and is connected to the combustion chamber of the housing (1).

3. The hydrogen combustion test apparatus according to claim 1, characterized in that: One end of the ignition head (7) corresponds to one end of the nozzle (4), and the ignition device (6), oxygen generator (8), flow valve (5), oxygen content detector (11), and temperature sensor (12) are all electrically connected to the control main box (10).

4. The hydrogen combustion test apparatus according to claim 1, characterized in that: The pressure relief pipe (13) and the gas collection pipe (14) are both connected to the combustion chamber of the housing (1). A valve is provided in the middle of both the pressure relief pipe (13) and the gas collection pipe (14). The valve in the middle of the pressure relief pipe (13) is a pressure valve.

5. The hydrogen combustion test apparatus according to claim 1, characterized in that: The surface of the transparent scale plate (15) is provided with two scale lines in different directions. The dividing line between the two scale lines is on the same horizontal plane as the axis of the nozzle (4). The scale line at the bottom of the transparent scale plate (15) is horizontally marked, and the scale line at the top of the transparent scale plate (15) is vertically marked.

6. The hydrogen combustion test apparatus according to claim 1, characterized in that: The temperature sensor (12) is located directly below the nozzle (4), the observation window (16) corresponds to the combustion chamber of the housing (1), and the control panel (17) is electrically connected to the control main box (10) and corresponds to the equipment cavity of the housing (1).

7. The hydrogen combustion test apparatus according to claim 1, characterized in that: The combustion chamber walls of the box (1) are all provided with fire-resistant and heat-insulating layers, and the glass at the observation window (16) position is set as high-temperature explosion-proof glass.

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