Platform for testing spreading performance of fire extinguishing foam

Abstract

The utility model provides a platform for testing spreading performance of fire extinguishing foam. The platform comprises a test box body with an upper opening, a heating assembly and a test assembly, the test box body comprises a visual loading container and a hollow support located at the bottom of the visual loading container, and the visual loading container is used for loading target combustible liquid; the heating assembly comprises a heating plate, the heating plate is arranged between the bottom of the visible loading container and the hollow support, and the heating plate is used for heating the target combustible liquid in the visible loading container; a foam spray head is further arranged above the visible loading container; and the test assembly is used for recording corresponding data in the foam spreading performance test. The utility model aims to provide a spreadability test platform for different types of fuel oil surfaces and fire extinguishing foam spreadability tests for high-temperature fuel oil surfaces and different types of high-temperature fuel oil combustion surfaces, so as to improve the authenticity of simulating petrochemical fire scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting and fire extinguishing, in particular to a platform for testing the spreading performance of fire extinguishing foam. Background Art

[0002] Currently, foam firefighting technology is the most effective and commonly used method for controlling and extinguishing petrochemical fires. Firefighting foam spreads over the fuel surface, forming a blanket that cools the burning area and suffocates the fuel, ultimately extinguishing the fire. The foam's spreading properties are directly related to its ability to be smoothly applied and spread rapidly across the fuel surface, which in turn impacts the foam's firefighting effectiveness. However, existing testing equipment is primarily designed to study the spreading properties of firefighting foam on room-temperature fuel surfaces. It is unable to test the spreading properties of firefighting foam on high-temperature fuel surfaces or under fuel combustion at varying temperatures, and therefore cannot realistically simulate petrochemical fire combustion and extinguishing scenarios.

[0003] The existing invention patent, CN 116699055 A, discloses a foam spreading and fire extinguishing performance testing platform. The platform comprises a first container containing a firefighting foam solution; a third container, one end of which is connected to the first container and is used to receive and foam the firefighting foam solution from the first container; a fourth container for holding fuel; the firefighting foam solution in the third container is foamed and then transferred to the fourth container; a porous gas disc connected to an air supply device is provided in the third container, which foams the firefighting foam solution through the porous gas disc; and a camera device for recording the foam spreading process on the fuel surface. While the platform can test the spreading and fire extinguishing performance of different foams on the same fuel, as well as the spreading and fire extinguishing performance of the same foam on different fuels, and further test the effects of foaming multiple and foam size on spreading performance, the platform requires multiple containers and corresponding connecting pipes and components, resulting in high investment costs and inconvenient mobility. Utility Model Content

[0004] The main purpose of the utility model is to provide a platform for testing the spreading performance of fire extinguishing foam, aiming to solve the problem of low cost performance of existing fire extinguishing test devices.

[0005] To achieve the above-mentioned purpose, the utility model provides a platform for testing the spreading performance of fire extinguishing foam, the platform comprising a test box with an upper opening, a heating component and a test component;

[0006] The test box includes a visible loading container and a hollow bracket located at the bottom of the visible loading container, wherein the visible loading container is used to load the target flammable liquid;

[0007] The heating assembly includes a heating plate, which is placed between the bottom of the visual loading container and the hollow bracket, and is used to heat the target flammable liquid in the visual loading container;

[0008] A foam nozzle is also arranged above the visible loading container, and the foam nozzle is used to connect to an external fire foam solution storage tank;

[0009] The test assembly is used to record corresponding data in the foam spreading performance test.

[0010] Optionally, the visible loading container includes a visible side of high-temperature resistant transparent glass, and a fixed scale is arranged on the outer surface of the visible side of high-temperature resistant transparent glass, and the fixed scale is aligned with the upper edge of the visible side of high-temperature resistant transparent glass.

[0011] Optionally, the test assembly includes a high-definition camera for overhead shooting and a high-definition camera for front shooting, wherein the high-definition camera for overhead shooting is placed directly above the visible loading container, and the high-definition camera for front shooting is located in front of the visible side of the visible loading container.

[0012] Optionally, the test assembly further comprises a thermocouple tree and a temperature collector, the thermocouple tree and the temperature collector are electrically connected, and a measuring end of the thermocouple tree is placed in a preset area within the visual loading container.

[0013] Optionally, the overhead high-definition camera and the front-facing high-definition camera are both placed on corresponding tripods with adjustable heights.

[0014] Optionally, the thermocouple tree includes five first armored thermocouples arranged horizontally from bottom to top and one second armored thermocouple placed in the target flammable liquid.

[0015] Optionally, a measuring end of the first armored thermocouple is located on a central vertical axis of the visible loading container.

[0016] Optionally, a temperature-resistant insulation layer is attached to one side of the heating plate, and the insulation layer is close to the hollow bracket.

[0017] Optionally, the heating plate is further connected to a digital temperature controller, which is used to control the heating plate to heat up to a preset temperature, so as to heat the target flammable liquid in the visible loading container.

[0018] Optionally, a plurality of supporting wheels are arranged at the bottom of the hollow bracket; a drain port is arranged at the middle and lower part of the outer side of the visible loading container, and a selection valve is arranged on the drain port.

[0019] Beneficial effects:

[0020] The test platform of the present invention is equipped with a test box with an upper opening, a heating component, a test component and a foam nozzle located above the test box, so as to test the spreading performance of fire extinguishing foam on different types of fuel surfaces under normal temperature conditions. It can also be used to test the spreading performance of fire extinguishing foam on different types of high-temperature fuel surfaces and different types of high-temperature fuel combustion surfaces, so as to improve the authenticity of simulated petrochemical fire scenes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 The utility model is a structural schematic diagram of a platform for testing the spreading performance of fire extinguishing foam according to an embodiment of the present invention.

[0023] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0024] Description of Figure Numbers:

[0025] Label name Label name 101 Visible loading container 102 Hollow bracket 103 Support wheel 201 Heating plate 202 Digital thermostat 301 Overhead HD camera 302 High-definition camera 303 Thermocouple Tree 304 Temperature collector 400 Foam nozzle DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0030] See also Figure 1 The utility model provides a platform for testing the spreading performance of fire extinguishing foam, which includes a test box with an upper opening, a heating component and a test component.

[0031] Specifically, the test box includes a visible loading container 101 and a hollow bracket 102 located at the bottom of the visible loading container 101. The visible loading container 101 is used to hold the target flammable liquid. The visible loading container 101 is made of a high-temperature resistant material, and one side is a high-temperature resistant transparent glass viewing side. The visual setting facilitates observation and recording of corresponding changes during the test. Preferably, the visible loading container is a rectangular container with an open top, and the viewing side is one of the long sides of the container, which is made of high-temperature resistant transparent glass, and the remaining sides are hard stainless steel plates. This facilitates the testing of the fire extinguishing foam spreading performance on different types of high-temperature fuel surfaces and different types of high-temperature fuel combustion surfaces.

[0032] The heating assembly includes a heating plate 201 positioned between the bottom of the visible loading container 101 and the hollow support 102. The heating plate 201 is also connected to a digital temperature controller 202, which controls the temperature of the heating plate 201 to a preset temperature, thereby heating the target flammable liquid within the visible loading container 101. The digital temperature controller has a maximum temperature control range of -20°C to 200°C, with a display accuracy of 1°C. Preferably, the heating plate 201 is a silicone rubber heating sheet, shaped to substantially conform to the size of the bottom of the visible loading container 101, thereby facilitating uniform heating of the target flammable liquid within the visible loading container 101. More preferably, a heat-resistant insulation layer is affixed to one side of the heating plate 201, abutting the hollow support. The insulation layer is heat-resistant to temperatures exceeding 200°C and is preferably made of aluminum silicate.

[0033] Furthermore, a foam nozzle 400 is positioned above the visible loading container 101. The foam nozzle 400 is used to connect to an external firefighting foam solution storage tank. Preferably, if the visible loading container 101 is a rectangular parallelepiped, the foam nozzle 400 is located on one short side, perpendicular to the center of the short side of the visible loading container 101 and 1 to 1.5 meters from the bottom of the visible loading container.

[0034] Furthermore, the test assembly is used to record data from the foam spreading performance test. A fixed scale is provided on the outer surface of the visible side of the heat-resistant transparent glass, aligned with the upper edge of the visible side of the heat-resistant transparent glass. This facilitates efficient recording of data changes by the test assembly.

[0035] Furthermore, a plurality of support wheels 103 are arranged at the bottom of the hollow bracket 102. Preferably, the support wheels 103 are universal wheels with brakes, so as to facilitate moving the test box to the target test environment to simulate the fire extinguishing foam spreading performance test in various environments.

[0036] Furthermore, a drain port is provided at the lower middle portion of the outer side of the visual loading container 101, and a selection valve is provided on the drain port to facilitate the effective discharge of waste materials remaining after the test so as to facilitate subsequent tests. The selection valve is a stainless steel faucet.

[0037] Furthermore, the test assembly includes an overhead HD camera 301 and a front-facing HD camera 302. The overhead HD camera 301 is placed directly above the visible loading container 101, while the front-facing HD camera 302 is located in front of the visible side of the visible loading container 101. Preferably, both the overhead HD camera 301 and the front-facing HD camera 302 are placed on corresponding height-adjustable tripods, thereby effectively adjusting the shooting height.

[0038] Furthermore, the test assembly also includes a thermocouple tree 303 and a temperature collector 304. The thermocouple tree 303 and the temperature collector 304 are electrically connected, with the measuring end of the thermocouple tree 303 positioned within a predetermined area within the visible loading container 101. Preferably, the thermocouple tree 303 comprises five first sheathed thermocouples arranged horizontally from bottom to top and one second sheathed thermocouple positioned within the target flammable liquid. More preferably, the measuring end of the first sheathed thermocouple is positioned along the central vertical axis of the visible loading container 101.

[0039] In addition, in order to better illustrate the structural arrangement of the present invention, the following is a detailed description through specific operations.

[0040] Example 1

[0041] The method for testing the spreading performance of fire extinguishing foam using the above-mentioned platform for testing the spreading performance of fire extinguishing foam comprises the following steps:

[0042] (1) Adjust the height and angle of the overhead HD camera and the front-facing HD camera, and start recording before the operation begins;

[0043] (2) Fill the visual loading container with diesel fuel of 2 cm thickness, adjust the digital thermostat to make the temperature of the heating plate reach 120°C, turn on the temperature acquisition instrument, and when the temperature of the diesel fuel layer reaches the corresponding temperature, turn off the digital thermostat and stop heating;

[0044] (3) Start recording data when the fire extinguishing foam is just sprayed into the visible loading container, and record the spreading time every 10 cm of the fire extinguishing foam front spreading distance;

[0045] (4) When the fire extinguishing foam covers the entire container, stop recording data, stop spraying foam, stop recording, save the recorded data of the temperature acquisition instrument, wait for the liquid in the container to cool for a period of time, open the stainless steel faucet and drain the liquid.

[0046] Example 2

[0047] The method for testing the spreading performance of fire extinguishing foam using the above-mentioned platform for testing the spreading performance of fire extinguishing foam comprises the following steps:

[0048] (1) Adjust the height and angle of the overhead HD camera and the front-facing HD camera, and start recording before the operation begins;

[0049] (2) A 1 cm thick layer of gasoline is placed in the visible loading container, the digital display thermostat is adjusted to make the temperature of the heating plate reach 50°C, and the temperature acquisition instrument is turned on. When the temperature of the gasoline layer reaches the corresponding temperature, the digital display thermostat is turned off, the heating is stopped, and the heating plate is removed from the sandwich formed by the hollow bracket and the bottom of the visible loading container, and the gasoline in the visible loading container is ignited;

[0050] (3) Start recording data when the fire extinguishing foam is just sprayed into the visible loading container, and record the spreading time every 10 cm of the fire extinguishing foam front spreading distance;

[0051] (4) When the fire extinguishing foam covers the entire container until the fire is extinguished, stop recording data, stop spraying foam, stop recording, save the recorded data of the temperature acquisition instrument, wait for the liquid in the container to cool for a period of time, open the stainless steel faucet and drain the liquid.

[0052] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a..." does not exclude the presence of other identical elements in the process, method, article or system comprising the element. The serial numbers of the above-mentioned embodiments of the present invention are for description only and do not represent the advantages and disadvantages of the embodiments.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A platform for testing the spreading performance of fire extinguishing foam, characterized in that: The platform includes a test box with an upper opening, a heating component and a test component; The test box comprises a visible loading container (101) and a hollow bracket (102) located at the bottom of the visible loading container (101), wherein the visible loading container (101) is used to load a target flammable liquid; The heating assembly comprises a heating plate (201), the heating plate (201) being placed between the bottom of the visible loading container (101) and the hollow bracket (102), and the heating plate (201) being used to heat the target flammable liquid in the visible loading container (101); A foam nozzle (400) is also arranged above the visible loading container (101), and the foam nozzle (400) is used to connect to an external fire foam solution storage tank; The test assembly is used to record corresponding data in the foam spreading performance test.

2. The platform for testing the spreading performance of fire extinguishing foam according to claim 1, characterized in that: The visible loading container (101) comprises a high-temperature resistant transparent glass visible side surface, the outer surface of the high-temperature resistant transparent glass visible side surface is provided with a fixed scale, and the fixed scale is aligned with the upper edge of the high-temperature resistant transparent glass visible side surface.

3. The platform for testing the spreading performance of fire extinguishing foam according to claim 2, characterized in that: The test assembly comprises a high-definition camera (301) for shooting from above and a high-definition camera (302) for shooting from above. The high-definition camera (301) for shooting from above is placed directly above the visible loading container (101), and the high-definition camera (302) for shooting from above is located in front of the visible side of the visible loading container (101).

4. The platform for testing the spreading performance of fire extinguishing foam according to claim 1, characterized in that: The test assembly further comprises a thermocouple tree (303) and a temperature collector (304), wherein the thermocouple tree (303) and the temperature collector (304) are electrically connected, and a measuring end of the thermocouple tree (303) is placed in a preset area within the visual loading container (101).

5. The platform for testing the spreading performance of fire extinguishing foam according to claim 3, characterized in that: The overhead high-definition camera (301) and the front-facing high-definition camera (302) are both placed on corresponding tripods with adjustable heights.

6. The platform for testing the spreading performance of fire extinguishing foam according to claim 4, characterized in that: The thermocouple tree (303) comprises five first armored thermocouples arranged horizontally from bottom to top and one second armored thermocouple placed in the target flammable liquid.

7. The platform for testing the spreading performance of fire extinguishing foam according to claim 6, characterized in that: The measuring end of the first armored thermocouple is located on the central vertical axis of the visual loading container (101).

8. The platform for testing the spreading performance of fire extinguishing foam according to claim 1, characterized in that: A heat-resistant insulation layer is attached to one side of the heating plate (201), and the insulation layer is close to the hollow bracket.

9. The platform for testing the spreading performance of fire extinguishing foam according to claim 1, characterized in that: The heating plate (201) is further connected to a digital display temperature controller (202), and the digital display temperature controller (202) is used to control the heating plate (201) to heat up to a preset temperature, so as to heat the target flammable liquid in the visual loading container (101).

10. The platform for testing the spreading performance of fire extinguishing foam according to any one of claims 1 to 9, characterized in that: The bottom of the hollow bracket (102) is also provided with a plurality of supporting wheels (103); a liquid discharge port is provided at the middle and lower portion of the outer side of the visible loading container (101), and a selection valve is provided on the liquid discharge port.

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