Inflammable liquid combustion test system and triethyl aluminum combustion test system

Abstract

The utility model provides an inflammable liquid combustion test system and a triethyl aluminum combustion test system. The inflammable liquid combustion test system comprises a first inert gas storage tank, a three-way pipeline and a second inert gas storage tank, the first inert gas storage tank is communicated with the inflammable liquid storage tank through a pressurizing pipeline, and a control valve is arranged on the pressurizing pipeline; a first branch of the three-way pipeline is communicated with the flammable liquid storage tank, a second branch of the three-way pipeline is communicated with the combustion disc, and flammable liquid in the flammable liquid storage tank is guided into the combustion disc through the first branch and the second branch; the second inert gas storage tank is connected with a third branch of the three-way pipeline; each branch of the three-way pipeline is provided with a valve assembly. According to the utility model, residual flammable liquid in the pipeline can be guided into the combustion disc by using inert gas pressure, so that test equipment is prevented from being damaged by combustion of the residual liquid in the pipeline, and the safety risk of a combustion test is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of combustion testing, specifically relating to a flammable liquid combustion testing system and a triethylaluminum combustion testing system. Background Technology

[0002] Triethylaluminum is a special liquid metal with the chemical formula C6H. 15 Al or Al(C2H5)3, with a molecular weight of 114.16, is mainly used in organic synthesis and also as rocket fuel. Triethylaluminum is widely used in the chemical industry, primarily as a catalyst for polypropylene and polyethylene, and can also be used as a catalyst in synthetic rubber and organic synthesis. It is a component of Ziegler-Natta type catalysts. Triethylaluminum is highly chemically reactive; it will smoke and spontaneously combust upon contact with air. It is extremely sensitive to trace amounts of oxygen and moisture, easily causing combustion and explosion. It also reacts violently with acids, halogens, alcohols, and amines. Upon contact with water, it decomposes strongly, releasing flammable alkane gases. Its combustion produces harmful combustion products such as carbon monoxide, carbon dioxide, and aluminum oxide.

[0003] Given the reactive and unique properties of triethylaluminum, extinguishing fires involving it requires specialized equipment and methods. Therefore, extensive research is needed on the fire performance analysis and extinguishing methods for this metal. Existing combustion testing equipment requires pipelines to introduce flammable liquids from storage tanks into the combustion pan. After the test, the residual liquid in the pipelines often continues to burn for a prolonged period, easily damaging the testing equipment and posing significant safety hazards. Utility Model Content

[0004] The present invention aims to provide a flammable liquid combustion test system and a triethylaluminum combustion test system, which can safely recover residual flammable liquid in the tube and avoid damage to the test device by the combustion of residual flammable liquid.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a flammable liquid combustion test system for introducing flammable liquid from a flammable liquid storage tank into a combustion pan, characterized in that the system comprises:

[0006] The first inert gas storage tank is connected to the flammable liquid storage tank via a pressurization pipeline and is suitable for storing high-pressure inert gas for pressurizing the flammable liquid storage tank. A control valve is provided on the pressurization pipeline.

[0007] A three-way conduit is provided, wherein the first branch connects to the flammable liquid storage tank, and the second branch connects to the combustion plate; the flammable liquid in the flammable liquid storage tank is guided to the combustion plate through the first and second branches; and

[0008] The second inert gas storage tank is connected to the third branch of the three-way pipeline;

[0009] Each branch of the three-way pipeline is equipped with a valve assembly. When the flammable liquid in the flammable liquid storage tank is discharged to a preset amount, the first branch is closed, and the third branch is connected to the second branch to discharge the remaining flammable liquid in the pipeline.

[0010] In this embodiment, after a predetermined amount of flammable liquid is introduced into the combustion pan, the pressurization pipeline and the first branch are closed, and the third branch is opened. Inert gas is used to pressurize and introduce the remaining flammable liquid in the pipeline into the combustion pan, thereby avoiding the combustion of the remaining liquid in the pipeline and damaging the test equipment, and greatly reducing the safety risk of the combustion test.

[0011] In one embodiment, the valve assembly includes control valves respectively disposed on the first branch, the second branch, and the third branch;

[0012] When the first inert gas storage tank is connected to the flammable liquid storage tank, the second branch is connected to the combustion plate, and the second inert gas storage tank is closed.

[0013] In one embodiment, the valve assembly includes a three-way valve disposed on the three-way port of the three-way pipe;

[0014] When the first inert gas storage tank is connected to the flammable liquid storage tank, the second branch is connected to the combustion plate, and the second inert gas storage tank is closed.

[0015] In one embodiment, the system further includes a platform scale for measuring the discharge of flammable liquid, the flammable liquid storage tank being mounted on the platform scale;

[0016] The amount of flammable liquid discharged is calculated by measuring the mass difference using the platform scale.

[0017] In this embodiment of the application, when flammable liquid is introduced into the combustion pan, the reading of the observation platform scale can be used to observe the remaining liquid in the flammable liquid storage tank in real time, thereby accurately controlling the quantitative release of flammable liquid, ensuring the safety of the experiment, and guaranteeing the accuracy and authenticity of the test data.

[0018] In one embodiment, the combustion disc has an opening at the top and is provided with a top cover.

[0019] In one embodiment, the first inert gas storage tank and the second inert gas storage tank are filled with nitrogen.

[0020] In one embodiment, the system further includes a supporting combustion system.

[0021] This invention provides a triethylaluminum combustion test system, which employs the aforementioned flammable liquid combustion test system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the flammable liquid combustion test system of this utility model;

[0023] Figure 2 This utility model Figure 1 A magnified view of part A in the middle.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10 - Second inert gas storage tank;

[0026] 20 - T-junction; 21 - Third branch; 22 - Second branch; 23 - First branch;

[0027] 30 - Pressurization line;

[0028] 40 - Control valve;

[0029] 50 - Combustion disc; 51 - Top cover;

[0030] 60 - Flammable liquid storage tank;

[0031] 70-platform scale;

[0032] 80 - First inert gas storage tank. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In existing combustion tests, flammable liquids are introduced into the combustion pan from a flammable liquid storage tank via pipelines. Residual liquid in the pipelines is difficult to remove. During triethylaluminum testing, due to its extremely high flammability, it is highly susceptible to combustion and explosion upon contact with even trace amounts of oxygen. After the test, the residual triethylaluminum in the pipelines often burns for an extended period, damaging the testing equipment and posing significant safety hazards to personnel and laboratory property. The flammable liquid combustion testing system provided in this application uses a three-way pipeline connecting the flammable liquid storage tank, the second inert gas storage tank, and the combustion pan. By adjusting the valve components in the three-way pipeline and the control valves on the pressurization pipeline, the system switches the connections between the first inert gas storage tank, the flammable liquid storage tank and the combustion pan, and the second inert gas storage tank and the combustion pan. First, the flammable liquid is introduced into the combustion pan using inert gas. Then, the flammable liquid storage tank is closed, and the second inert gas storage tank and the combustion pan are connected, using inert gas to purge the residual flammable liquid from the pipelines. This eliminates the risk of residual liquid combustion damaging the equipment and ensures the safety of the test.

[0038] Please refer to the attached document as well. Figure 1 and attached Figure 2The flammable liquid combustion test system provided by this utility model will now be described. The flammable liquid combustion test system includes a first inert gas storage tank 80, a three-way pipe 20, and a second inert gas storage tank 10. The three branches of the three-way pipe 20 are respectively connected to the second inert gas storage tank 10, the flammable liquid storage tank 60, and the combustion plate 50. When flammable gas is introduced into the combustion plate 50, the pressurization pipe 30 between the first inert gas storage tank 80 and the flammable liquid storage tank 60, as well as the pipe between the flammable liquid storage tank 60 and the combustion plate 50, are connected. When residual liquid is removed from the pipe, the pipe between the second inert gas storage tank 10 and the combustion plate 50 is connected. Specifically, the first inert gas storage tank 80 is connected to the flammable liquid storage tank via the pressurization pipe 30 and is suitable for storing high-pressure inert gas used to pressurize the flammable liquid storage tank 60. A control valve 40 is installed on the pressurization pipe 30. In the three-way pipe 20, the first branch 23 is connected to the flammable liquid storage tank, and the second branch 22 is connected to the combustion plate 50. The flammable liquid in the flammable liquid storage tank is guided to the combustion plate 50 through the first branch 23 and the second branch 22. The second inert gas storage tank 10 is connected to the third branch 21 of the three-way pipe 20. Each branch of the three-way pipe 20 is equipped with a valve assembly. When the flammable liquid in the flammable liquid storage tank is discharged to a preset amount, the first branch 23 is closed, and the third branch 21 is connected to the second branch 22 to discharge the remaining flammable liquid in the pipe.

[0039] The working principle of this embodiment is as follows: Open the control valve 40 on the pressurization pipeline 30 and adjust the valve assembly, open the first branch 23 and the second branch 22 of the three-way pipeline 20, release the gas in the first inert gas storage tank 80, and pressurize the flammable liquid storage tank 60, thereby guiding the flammable liquid into the combustion plate 50 along the second branch 22. After the preset amount of flammable liquid is discharged, close the control valve 40 on the pressurization pipeline 30 and adjust the valve assembly, close the pressurization pipeline 30 and the first branch 23, open the second branch 22 and the third branch 21, release the gas in the second inert gas storage tank 10, and use the inert gas to discharge all the flammable liquid remaining in the second branch 22 into the combustion plate 50.

[0040] The embodiments of this application allow for adjustment of pipeline access, and utilize the gas in the second inert gas storage tank 10 to purge the residual flammable liquid in the pipeline, preventing the residual liquid in the pipeline from coming into contact with air and burning after the test, thus eliminating damage to the test equipment, ensuring the safety of the test, and the test system is easy to operate and has low manufacturing cost.

[0041] In one optional embodiment, the present invention provides a valve assembly configuration: the valve assembly includes control valves 40 respectively disposed on a first branch 23, a second branch 22, and a third branch 21. When the first inert gas storage tank 80 is connected to the flammable liquid storage tank, the second branch 22 is connected to the combustion plate 50, and the second inert gas storage tank 10 is closed, after a certain amount of flammable liquid is discharged during the test, the control valve 40 on the first branch 23 is closed, and the control valve 40 on the third branch 21 is opened.

[0042] In one optional embodiment, the present invention also provides another valve assembly configuration: the valve assembly includes a three-way valve disposed on the three-way port of the three-way pipeline 20. When the first inert gas storage tank 80 is connected to the flammable liquid storage tank, the second branch 22 is connected to the combustion plate 50, and the second inert gas storage tank 10 is closed. After a certain amount of flammable liquid is discharged during the test, the knob of the three-way valve is adjusted to disconnect the first branch 23 and connect the second branch 22 and the third branch 21.

[0043] In an optional implementation, the system further includes a scale 70 for measuring the amount of flammable liquid discharged, with the flammable liquid storage tank mounted on the scale 70. The amount of flammable liquid discharged is calculated based on the mass difference measured by the scale 70.

[0044] In this embodiment of the application, the discharge volume of flammable liquid is determined based on the reading of the platform scale 70, thereby achieving precise control of the test parameters and improving the accuracy of the test data.

[0045] In one alternative embodiment, a specific structure of a combustion disc 50 is provided: the combustion disc 50 has an opening at the top and is provided with a top cover 51.

[0046] In one alternative embodiment, nitrogen is selected as the inert gas for pressurizing the flammable liquid storage tank 60 and venting residual flammable liquid from the pipeline. The first inert gas storage tank 80 and the second inert gas storage tank 10 in the system are used to fill with nitrogen.

[0047] In one alternative implementation, the system also includes a complementary combustion system.

[0048] In one optional embodiment, the flammable liquid combustion test system further includes a fire extinguishing device. During the test, the fire extinguishing device is activated to extinguish the fire after the flammable liquid in the combustion pan 50 reaches a certain pre-ignition time. During the fire extinguishing process, the test personnel record technical indicators such as fire control time and fire extinguishing time. Preferably, the fire extinguishing device is a wheeled fire extinguisher.

[0049] The combustion test using the flammable liquid combustion test system provided in the above embodiments includes the following steps:

[0050] S1. Connect the flammable liquid storage tank 60, the three-way pipe 20 to the combustion plate 50, and close the top cover 51 of the combustion plate 50;

[0051] S2. Open the control valve 40 on the pressurization pipeline 30 and close the third branch 21 of the three-way pipeline 20. Use the inert gas in the first inert gas storage tank 80 to pressurize the flammable liquid storage tank 60 and introduce the flammable liquid into the combustion plate 50.

[0052] S3. Calculate the discharge amount of flammable liquid based on the reading of the platform scale 70. When the discharge amount reaches the preset value, close the first branch 23 of the pressurization pipeline 30 and the three-way pipeline 20, open the first branch 23 and the second branch 22, and use the inert gas in the second inert gas storage tank 10 to pressurize the second branch 22 and discharge the residual liquid into the combustion plate 50.

[0053] S4. After a certain interval, close the second inert gas storage tank 10 and open the top cover 51 of the combustion plate 50 to expose the flammable liquid to the air for combustion.

[0054] S5. After a certain pre-combustion time is reached, activate the fire extinguishing device to extinguish the fire. During the fire extinguishing process, record technical indicators such as fire control time and fire extinguishing time. After the fire is extinguished, observe the combustion plate 50 and record whether reignition occurs. If reignition occurs, record the reignition situation and the use of extinguishing agent.

[0055] The present invention provides a triethylaluminum combustion test system, which adopts the flammable liquid combustion test system described in the above embodiments, wherein the flammable liquid storage tank 60 is used to hold triethylaluminum metal.

[0056] 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 and improvements 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 flammable liquid combustion test system for introducing flammable liquid from a flammable liquid storage tank into a combustion pan, characterized in that, The system includes: The first inert gas storage tank is connected to the flammable liquid storage tank via a pressurization pipeline and is suitable for storing high-pressure inert gas for pressurizing the flammable liquid storage tank. A control valve is provided on the pressurization pipeline. A three-way conduit is provided, wherein the first branch connects to the flammable liquid storage tank, and the second branch connects to the combustion plate; the flammable liquid in the flammable liquid storage tank is guided to the combustion plate through the first and second branches; and The second inert gas storage tank is connected to the third branch of the three-way pipeline; Each branch of the three-way pipeline is equipped with a valve assembly. When the flammable liquid in the flammable liquid storage tank is discharged to a preset amount, the first branch is closed, and the third branch is connected to the second branch to discharge the remaining flammable liquid in the pipeline.

2. The flammable liquid combustion test system as described in claim 1, characterized in that, The valve assembly includes control valves respectively disposed on the first branch, the second branch and the third branch; When the first inert gas storage tank is connected to the flammable liquid storage tank, the second branch is connected to the combustion plate, and the second inert gas storage tank is closed.

3. The flammable liquid combustion test system as described in claim 1, characterized in that, The valve assembly includes a three-way valve disposed on the three-way port of the three-way pipeline; When the first inert gas storage tank is connected to the flammable liquid storage tank, the second branch is connected to the combustion plate, and the second inert gas storage tank is closed.

4. The flammable liquid combustion test system as described in claim 1, characterized in that, The system also includes a platform scale for measuring the discharge of flammable liquids, with the flammable liquid storage tank mounted on the platform scale; The amount of flammable liquid discharged is calculated by measuring the mass difference using the platform scale.

5. The flammable liquid combustion test system as described in claim 1, characterized in that, The combustion disc has an opening at the top and is provided with a top cover.

6. The flammable liquid combustion test system as described in claim 1, characterized in that, The first inert gas storage tank and the second inert gas storage tank are filled with nitrogen.

7. The flammable liquid combustion test system as described in claim 1, characterized in that, The system also includes a supporting combustion system.

8. A triethylaluminum combustion test system, characterized in that... The flammable liquid combustion test system according to any one of claims 1-7 is adopted.

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