Fire extinguishing performance testing device suitable for foam extinguishing agent
By designing a fire extinguishing performance test device for foam fire extinguishing agents, using heating pipes and temperature sensors to collect data in real time, the problems of inaccurate and dangerous experimental data are solved, and the credibility and safety of the test results are improved.
Patent Information
- Application Number
- CN202420764654.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-15
AI Technical Summary
During the development of foam fire extinguishing agents, the lack of professional experimental equipment leads to inaccurate and dangerous experimental data, which limits the development of fire extinguishing agents in the coal mine field.
A fire extinguishing performance testing device including an outer cylinder, an inner cylinder, a support net and a test element was designed to collect data in real time through heating pipes and temperature sensors to ensure the accuracy and safety of experimental results.
The safety inspection of the ability of foam fire extinguishing agents to eliminate coal fires has been achieved, the credibility and accuracy of the test results have been improved, and the safety of the experiment has been ensured.
Smart Images
Figure CN222232417U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fire extinguishing performance testing of fire fighting systems, and in particular relates to a fire extinguishing performance testing device suitable for a foam fire extinguishing agent for coal mine fire extinguishing. Background Art
[0002] Coal mines are an important industrial resource with huge mining volume. Mine fires are one of the main disasters in the coal mining process, posing a great threat to production safety. Therefore, it is particularly important to study foam fire extinguishing agents in the coal mining field. However, when developing foam fire extinguishing agents, the lack of professional experimental generation and detection equipment leads to inaccurate experimental data and dangerous experimental processes, which greatly limits the development of foam fire extinguishing agents. Utility Model Content
[0003] In order to solve the above problems, the utility model provides a fire extinguishing performance testing device suitable for foam fire extinguishing agent.
[0004] The utility model discloses a fire extinguishing performance testing device suitable for a foam fire extinguishing agent, comprising: an outer cylinder, a vent is provided at the lower part of the outer cylinder; an inner cylinder, the inner cylinder is detachably sleeved inside the outer cylinder, and the bottom of the inner cylinder is open; a first supporting net, the first supporting net is fixed to the bottom of the inner cylinder; a second supporting net, the second supporting net is fixed inside the outer cylinder, and the second supporting net is located above the vent; and a testing element, the testing element is mounted on the second supporting net.
[0005] Furthermore, the first support net and the second support net are both composed of a support ring and a plurality of parallel refractory rods located inside the support ring, there are gaps between the plurality of refractory rods, and the number of refractory rods on the second support net is less than the number of refractory rods on the first support net.
[0006] Furthermore, the test element includes a heating tube and a temperature sensor, and the heating tube and the temperature sensor are respectively located on different refractory rods of the second supporting network.
[0007] Furthermore, the heating tube and the temperature sensor can pass through the gaps between the refractory rods in the first supporting net.
[0008] Furthermore, the first supporting mesh and the second supporting mesh are both metal meshes, and the refractory rods are both metal rods.
[0009] Furthermore, the fire-resistant rods in the second supporting net are hollow rods, and the fire-resistant rods are provided with electric wires and connectors connected to the heating tubes and temperature sensors, and the electric wires and connectors are wrapped with heat-insulating and flame-retardant materials.
[0010] Furthermore, the thermal insulation and flame retardant material is a thermal insulation ceramic nanowire film.
[0011] Furthermore, the bottom of the outer cylinder has four legs, the outer surface of the outer cylinder is symmetrically provided with handles, and the outer wall of the outer cylinder is also installed with a power cord and a data transmission line, which are connected to the wire lines in the second supporting network inside the outer cylinder.
[0012] Furthermore, a handle is installed on the top of the inner tube, and the gap between the refractory rods of the first supporting net is less than 3 cm.
[0013] Furthermore, coal blocks are placed on the first support net, and the particle size of the coal blocks is 3-5 cm.
[0014] The beneficial effect of the utility model is that the utility model can realize the safety detection of coal safe combustion and the ability of foam fire extinguishing agent to extinguish coal fire by integrating the heating tube and the temperature sensor into the outer tube, and collect and transmit data in real time through the temperature sensor to ensure the accuracy and reliability of the experimental results. The method of measuring the temperature change of different foam fire extinguishing agents when extinguishing coal fire in real time by relying on the temperature sensor and determining the quality of the fire extinguishing ability of the foam fire extinguishing agent through the measured temperature change trend improves the credibility of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a structural schematic diagram of a fire extinguishing performance testing device suitable for a foam fire extinguishing agent.
[0016] Figure 2 It is a structural schematic diagram of the inner cylinder of the utility model.
[0017] Figure 3 It is a structural schematic diagram of the outer cylinder of the utility model.
[0018] Figure 4 It is a structural schematic diagram of the second supporting net of the utility model.
[0019] Figure 5 It is a top view of the utility model.
[0020] Reference numerals:
[0021] Outer tube 1; vent 101; plug 102; leg 103; handle 104; inner tube 2; handle 201; first support net 3; second support net 4; temperature sensor 401; heating tube 402. DETAILED DESCRIPTION
[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.
[0023] like Figure 1-Figure 5As shown, the fire extinguishing performance test device of the utility model suitable for foam fire extinguishing agent includes: an outer tube 1, an inner tube 2, a first support net 3, a second support net 4 and a test element. A vent 101 is provided at the lower part of the outer tube 1. A plug 102 is detachably installed at the vent 101, and the vent 101 is embedded with the plug 102; the vent 101 is used for natural ventilation to the inside of the outer tube 1 or for air supply through a blower.
[0024] The inner cylinder 2 is detachably mounted inside the outer cylinder 1, that is, the inner cylinder 2 can be put into the outer cylinder 1 or taken out from the outer cylinder 1, so that the coal blocks and foam fire extinguishing agent after the test can be taken out together, which is convenient for cleaning the test device and the next test.
[0025] The bottom of the inner tube 2 is open, and the first support net 3 is fixed at the bottom of the inner tube 2; the second support net 4 is fixed inside the outer tube 1, and the second support net 4 is located above the ventilation port 101, so that when the coal blocks placed on the first support net 3 are burned, ventilation through the ventilation port 101 can accelerate the combustion of the coal blocks.
[0026] The first support net 3 and the second support net 4 are both composed of a support ring and a plurality of parallel refractory rods located inside the support ring, with gaps between the plurality of refractory rods. The number of refractory rods on the second support net 4 is less than the number of refractory rods on the first support net 3.
[0027] The outer diameter of the first support net 3 is smaller than that of the second support net 4 , so when the inner cylinder 2 is placed inside the outer cylinder 1 , the first support net 3 can be placed above the second support net 4 , and the refractory rods on the first support net 3 and the second support net 4 are parallel to each other.
[0028] like Figure 4 As shown, the test element is installed on the second support net 4. The test element includes a heating tube 402 and a temperature sensor 401, and the heater 402 and the temperature sensor 401 are respectively located on different refractory rods of the second support net 4. When the first support net 3 is placed on the second support net 4, since the refractory rods are parallel to each other, the heating tube 402 and the temperature sensor 401 can pass through the gaps between the refractory rods in the first support net 3, so that the heating tube 402 and the temperature sensor 401 can directly contact the coal blocks placed on the first support net 3, which is convenient for real-time data collection and transmission.
[0029] The first supporting net 3 and the second supporting net 4 are both metal nets, and the refractory rods are both metal rods.
[0030] The fire-resistant rods in the second support net 4 are hollow rods, and are provided with wires and connectors connected to the heating tube 402 and the temperature sensor 401. The wires and connectors are wrapped with heat-insulating flame-retardant materials, which are heat-insulating ceramic nanowire films.
[0031] like Figure 3 As shown, the bottom of the outer cylinder 1 has four legs 103, the outer surface of the outer cylinder 1 is symmetrically provided with handles 104, and the outer wall of the outer cylinder 1 is also installed with a power line and a data transmission line, which are connected to the wire line in the second support network 4 inside the outer cylinder 1.
[0032] like Figure 2 As shown, a handle 201 is installed on the top of the inner tube 2, and the gap between the refractory rods of the first support net 3 is less than 3 cm. Coal blocks with a particle size of 3-5 cm are placed on the first support net 3. That is, the spacing between the refractory rods in the first support net 3 is smaller than the particle size of the coal blocks, which is used to hold the coal blocks and allow the heating tube 402 and the temperature sensor 401 to pass through.
[0033] When the utility model is used, the inner cylinder 2 is first placed inside the outer cylinder 1, the test device is assembled, and then the coal blocks with a particle size of 3-5cm are screened out, the coal blocks are placed in the inner cylinder 2 in sequence, the plug 102 is taken out, the vent 101 is opened for ventilation, and the power is turned on at the same time, the heating tube 402 and the temperature sensor 401 are started, the coal blocks are continuously heated by the heating tube 402, and the data transmission line of the temperature sensor 401 is connected to the computer to obtain temperature data in real time, and the heating tube 402 is turned off after the coal blocks are burned, and the temperature of the coal blocks is detected. When the temperature of the coal blocks is stabilized at more than 800°C and can be maintained for 3-5 minutes, it is determined that the coal blocks are completely ignited, the vent 101 is closed, and then the foam fire extinguishing agent prepared in the experiment is quantitatively sprayed, and the temperature data after the use of the foam fire extinguishing agent is continuously received, and it is observed whether the coal blocks have a re-ignition phenomenon, and the performance test of the foam fire extinguishing agent is completed once; the experiment is repeated using foam fire extinguishing agents of the same quality but different types to detect the fire extinguishing performance of different foam fire extinguishing agents.
[0034] The plug 102 can close the vent 101 when ventilation is not needed, thereby blocking the air flow.
[0035] When the fan is used to ventilate the vent 101, different gears of the fan can be adjusted to achieve control of different wind speeds, thereby testing the fire extinguishing performance under different wind speeds.
[0036] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0039] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.
Claims
1. A fire extinguishing performance test device suitable for foam fire extinguishing agent, characterized in that: include: An outer cylinder, wherein a vent is provided at the lower portion of the outer cylinder; An inner cylinder, which is detachably sleeved inside the outer cylinder and has an opening at the bottom; A first supporting net, wherein the first supporting net is fixed to the bottom of the inner cylinder; A second supporting net, wherein the second supporting net is fixed inside the outer cylinder and is located above the vent; A test element is mounted on the second supporting net.
2. The fire extinguishing performance testing device for foam fire extinguishing agent according to claim 1, characterized in that: The first support net and the second support net are both composed of a support ring and a plurality of parallel refractory rods located inside the support ring, there are gaps between the plurality of refractory rods, and the number of refractory rods on the second support net is less than the number of refractory rods on the first support net.
3. The fire extinguishing performance testing device for foam fire extinguishing agent according to claim 2, characterized in that: The test element comprises a heating tube and a temperature sensor, and the heating tube and the temperature sensor are respectively located on different refractory rods of the second supporting network.
4. The fire extinguishing performance testing device for foam fire extinguishing agent according to claim 3, characterized in that: The heating tube and the temperature sensor can both pass through the gaps between the refractory rods in the first supporting mesh.
5. The fire extinguishing performance testing device for foam fire extinguishing agent according to claim 4, characterized in that: The first supporting mesh and the second supporting mesh are both metal meshes, and the fire-resistant rods are both metal rods.
6. The fire extinguishing performance testing device for foam fire extinguishing agent according to claim 5, characterized in that: The fire-resistant rods in the second supporting net are hollow rods, and are provided with electric wires and connectors connected to the heating tubes and the temperature sensors, and the electric wires and connectors are wrapped with heat-insulating and flame-retardant materials.
7. The fire extinguishing performance testing device for foam fire extinguishing agent according to claim 6, characterized in that: The heat-insulating flame-retardant material is a heat-insulating ceramic nanowire film.
8. The fire extinguishing performance testing device for foam fire extinguishing agent according to claim 7, characterized in that: The bottom of the outer cylinder has four legs, the outer surface of the outer cylinder is symmetrically provided with handles, the outer wall of the outer cylinder is also installed with a power line and a data transmission line, and the power line and the data transmission line are connected to the wire line in the second supporting network inside the outer cylinder.
9. The fire extinguishing performance testing device for foam fire extinguishing agent according to claim 5, characterized in that: A handle is installed on the top of the inner tube, and the gap between the refractory rods of the first supporting net is less than 3 cm.
10. The fire extinguishing performance testing device for foam fire extinguishing agent according to claim 9, characterized in that: The coal blocks are placed on the first supporting net, and the particle size of the coal blocks is 3-5 cm.