CN114428100A - Experimental device for measuring influence of pool fire on pipeline - Google Patents
Experimental device for measuring influence of pool fire on pipeline Download PDFInfo
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- CN114428100A CN114428100A CN202210099939.2A CN202210099939A CN114428100A CN 114428100 A CN114428100 A CN 114428100A CN 202210099939 A CN202210099939 A CN 202210099939A CN 114428100 A CN114428100 A CN 114428100A
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- 239000012530 fluid Substances 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000004088 simulation Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 23
- 230000000694 effects Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 85
- 230000005855 radiation Effects 0.000 abstract description 4
- 239000000295 fuel oil Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Educational Technology (AREA)
- Educational Administration (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses an experimental device for measuring influence of a pool fire on a pipeline, which comprises an oil pool system, an oil supply system, a transverse air system and a pipeline simulation system. The oil pool system is used for simulating an oil pool fire disaster, the oil supply system is used for supplying oil to the oil pool system, and an air outlet of the transverse air system is opposite to the oil pool system and is used for simulating the interference of transverse air on the fire of the oil pool system; the pipeline simulation system is used for simulating the thermal radiation heating condition of the pipeline. The experimental device for determining the influence of the pool fire on the pipeline can simulate the influence of the pool fire on the pipeline, and can simulate the pipeline cooling protection situation when different fluids are introduced into the pipeline. In addition, after water is added into the oil pool, the burning oil product can be isolated from the fuel oil of the oil supply system, and the safety performance of the experimental device is improved.
Description
Technical Field
The invention relates to the technical field of fire safety, in particular to an experimental device for determining influence of a pool fire on a pipeline.
Background
The leakage of combustible liquids in the case of fire generally causes a pool fire which is mainly destroyed by radiating surrounding objects in the form of thermal radiation. In areas such as tank areas where a large amount of liquid fuel is stored, tank fires are likely to form in the fire protection system after oil leaks, which poses a great threat to surrounding pipelines.
At present, various experimental devices for researching the influence of a pool fire on surrounding equipment exist, for example, a device capable of measuring the influence of a multi-pool fire of any size on target equipment is disclosed in CN201911367848.7, CN202010317989.4 discloses a model device for researching the multi-pool fire of a liquid hydrocarbon storage tank and application thereof, and CN201510906813.1 discloses a wide water surface oil pool fire combustion simulation device under the action of environmental wind. The devices mainly consider the direct influence of pool fire on the heat radiation of surrounding fixed objects, the surrounding objects do not have heat transfer, however, for pipelines, media are arranged in the pipelines, the media are different in types and flow rates, and the media have the situations of phase change heat absorption, temperature rise heat absorption and the like and can transfer partial heat, so that the current experimental device cannot simulate the heat transfer process, and the result is not suitable for the influence of the pool fire on the pipelines.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides an experimental device for measuring the influence of the pool fire on the pipeline, which improves the Chinese application patent CN201510906813.1 and can be used for researching the influence of the pool fire on the pipeline.
An experimental device for measuring influence of a pool fire on a pipeline comprises an oil pool system, an oil supply system and a transverse air system, wherein the oil pool system is used for simulating the oil pool fire, the oil supply system is used for supplying oil to the oil pool system, and an air outlet of the transverse air system is opposite to the oil pool system and is used for simulating interference of transverse air on the oil pool system fire; the simulation pipeline is also provided with a fluid transmission system in a matching way and used for providing flowing fluid for the simulation pipeline so as to reduce the temperature.
As an embodiment of the present invention, the fluid transfer system includes a fluid storage tank a and a fluid pump a, an inlet of the fluid pump a is communicated with the fluid storage tank a, an outlet of the fluid pump a is communicated with one end of the simulation pipeline, and the other end of the simulation pipeline is communicated with the fluid storage tank a, so that a fluid circulation pipeline a is formed.
As an embodiment of the present invention, a temperature reducing device is disposed in the fluid circulation pipeline a for reducing the temperature of the fluid entering the simulation pipeline. So can simulate the operating mode that lets in different fluid cooling protection pipeline.
As an embodiment of the invention, the different fluid comprises water. The water has higher heat capacity, low vaporization temperature and high vaporization enthalpy, and can better take away the radiant heat obtained by the pipeline and protect the pipeline.
As an embodiment of the present invention, the oil sump system includes an oil sump, the oil supply system is a constant liquid level system, and the oil supply system is communicated with the oil sump, so that the liquid level of the oil sump is constant.
As an embodiment of the present invention, the constant liquid level system includes a head tank, a fluid pump B, and a storage tank B; the inlet of the fluid pump B is communicated with the storage tank B, and the outlet of the fluid pump B is communicated with the high-level tank; an oil discharge pipe is arranged at the upper part of the high-level tank and is used for automatically discharging oil to the storage tank B and controlling the liquid level in the high-level tank to be constant; the high-level tank is communicated with the oil pool, so that the liquid levels of the high-level tank and the oil pool are positioned on the same horizontal plane.
As an embodiment of the present invention, a communicating pipe between the head tank and the oil sump extends into the oil sump and vertically extends upward for a certain distance, a check valve is disposed on a section of the communicating pipe extending in the oil sump, a certain water level is disposed in the oil sump, and an outlet of the communicating pipe at one end of the oil sump is disposed in water. Thus, water is used as the isolation liquid for flame retardance, and the safety is ensured.
As an embodiment of the invention, the oil sump is also equipped with a constant level system for controlling the water level to be constant.
Compared with the prior art, the method has the following advantages:
(1) the experimental device for measuring the influence of the pool fire on the pipeline can simulate the influence of the pool fire on the pipeline, and can simulate the pipeline protection situation in the case of fire when different fluids are introduced into the pipeline.
(2) According to the invention, water is added into the oil pool to isolate the burning oil product from the fuel oil of the oil supply system, so that the safety performance of the experimental device is improved.
Drawings
FIG. 1 is a schematic structural diagram of an experimental apparatus for determining the influence of a fire in a cell on a pipeline according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
In the description of the present invention, it is to be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and should not be construed as limiting the present invention.
Examples
Referring to fig. 1, an experimental apparatus for determining the influence of a fire in a tank on a pipeline includes an oil tank system, an oil supply system, a transverse wind system, and a pipeline simulation system. The oil pool system is used for simulating an oil pool fire disaster, the oil supply system is used for supplying oil to the oil pool system, and an air outlet of the transverse air system is opposite to the oil pool system and is used for simulating the interference of transverse air on the oil pool system fire disaster; the pipeline simulation system is used for simulating the pipeline heat radiation situation.
The transverse wind system comprises a fairing 31, an axial flow fan 32 is arranged in the fairing 31, a filter screen 33 is arranged at a wind inlet of the axial flow fan 32 and used for filtering impurities and preventing the fan from being damaged, and a rectifying plate 34 and an anemoscope 35 are sequentially arranged at a wind outlet of the axial flow fan 32.
The oil pool system comprises a water pool 11 and an oil pool 12, wherein the oil pool 12 is positioned in the water pool 11, fuel is stored in the oil pool, the oil pool is ignited by an igniter to simulate a pool fire, the water pool 11 is filled with water, the peripheral side wall of the oil pool 11 is soaked in the water to reduce the temperature, and the oil pool is prevented from being damaged due to high temperature.
The oil supply system adopts a constant liquid level system and is communicated with the oil pool 12, so that the liquid level of the oil pool 12 is constant. Specifically, the constant level system includes a head tank 21, a fluid pump B22, and a reservoir B23; the inlet of the fluid pump B22 is communicated with the bottom of the storage tank B23, and the outlet is communicated with the bottom of the high-level tank 21, so that the fuel oil in the storage tank B23 is sent into the high-level tank 21; an oil drain pipe 211 is provided at an upper portion of the high tank 21, and the oil drain pipe 211 drains oil to the tank B23 by gravity for controlling a liquid level in the high tank 21 to be constant. The bottom of the high-level tank 21 is communicated with the bottom of the oil pool 12, so that the liquid levels of the high-level tank 21 and the oil pool 12 are located on the same horizontal plane, and the liquid level of the oil pool is controlled to be stable. In addition, in view of safety, the communicating pipe 5 between the high-level tank 21 and the oil sump 12 extends into the oil sump and vertically extends upwards for a certain distance, the communicating pipe 5 is provided with a check valve 51 at one section extending in the oil sump, a certain water level is arranged in the oil sump 12, an outlet of one end of the communicating pipe 5 located in the oil sump 12 is located in water, and water is used as isolation liquid to resist flame, so that safety is guaranteed. In order to prevent the water in the oil pool from being carried away by the oil and causing the outlet of the communicating pipe 5 to be positioned in the burning oil product, a constant liquid level system (not shown in the figure) is also matched for the water level, and of course, water circulation is adopted in the constant liquid level system.
The pipe simulation system includes a simulation pipe 41 and a fluid transfer system for supplying a flowing fluid to the simulation pipe. The simulation pipe 41 is provided with a plurality of temperature sensors (not shown) for measuring the temperature of the inner wall of the pipe, and the temperature sensors are arranged along the axial direction of the simulation pipe. The fluid transfer system comprises a fluid storage tank A42 and a fluid pump A43, wherein an inlet of the fluid pump A43 is communicated with the fluid storage tank A42, an outlet of the fluid pump A43 is communicated with one end of a simulation pipeline 41, and the other end of the simulation pipeline 41 is communicated with a fluid storage tank A42, so that a fluid circulation pipeline A is formed. Be provided with the heat exchanger in fluid storage tank A42 for lower the temperature to circulating fluid, so alright in order to simulate the operating mode that lets in different fluid cooling protection pipeline.
The experimental method comprises the following steps:
starting a constant liquid level system of the water level of the oil pool, and establishing a constant water level in the oil pool so that an outlet of a communicating pipe in the oil pool is soaked in water; starting a constant liquid level system of the oil level of the oil pool to keep the oil level of a certain liquid level height in the oil pool; activating the fluid delivery system; igniting the oil pool by using an igniter; starting a transverse wind system;
adjusting a transverse wind system to change the wind speed and simulating the influence of different wind speeds on a pipeline;
adjusting the fluid flow rate of a fluid transmission system, and determining the cooling effect of different fluid flow rates on a pipeline;
and adjusting the fluid property of the fluid transmission system, and determining the cooling effect of different fluid types on the pipeline.
As an embodiment of the present invention, the oil sump system includes an oil sump, as an embodiment of the present invention.
While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. An experimental device for determining influence of a pool fire on a pipeline comprises an oil pool system, an oil supply system and a transverse air system, wherein the oil pool system is used for simulating the oil pool fire, the oil supply system is used for providing a burning oil product for the oil pool system, and an air outlet of the transverse air system is opposite to the oil pool system and is used for simulating interference of transverse air on a flame of the oil pool system; the simulation pipeline is also provided with a fluid transmission system in a matching way and used for providing flowing fluid for cooling the simulation pipeline.
2. The experimental apparatus for determining the influence of the fire in the pool on the pipeline as claimed in claim 1, wherein the fluid transfer system comprises a fluid storage tank A and a fluid pump A, an inlet of the fluid pump A is communicated with the fluid storage tank A, an outlet of the fluid pump A is communicated with one end of the simulated pipeline, and the other end of the simulated pipeline is communicated with the fluid storage tank A, so as to form a fluid circulation pipeline A.
3. The experimental device for determining the influence of the fire in the cell on the pipeline as claimed in claim 2, wherein a temperature reduction device is disposed in the fluid circulation pipeline a for reducing the temperature of the fluid entering the simulation pipeline.
4. An experimental apparatus for determining the effect of a cell fire on a pipe according to claim 3, wherein said different fluids comprise water.
5. An experimental apparatus for determining the effect of a pool fire on a pipeline as claimed in claim 1, wherein said oil pool system comprises an oil pool, said oil supply system is a constant level system, and said oil supply system is in communication with said oil pool, so that the oil pool level is constant.
6. The experimental facility for determining the effect of a pool fire on a pipeline as claimed in claim 5, wherein the constant liquid level system comprises a high level tank, a fluid pump B and a storage tank B; the inlet of the fluid pump B is communicated with the storage tank B, and the outlet of the fluid pump B is communicated with the high-level tank; an oil discharge pipe is arranged at the upper part of the high-level tank and is used for automatically discharging oil to the storage tank B and controlling the liquid level in the high-level tank to be constant; the high-level tank is communicated with the oil pool, so that the liquid levels of the high-level tank and the oil pool are positioned on the same horizontal plane.
7. An experimental apparatus for determining the influence of a fire in a pool on a pipeline as claimed in claim 6, wherein the communicating pipe between the head tank and the oil pool extends into the oil pool and vertically and upwardly for a certain distance, and a section of the communicating pipe located in the oil pool is provided with a check valve, a certain water level is provided in the oil pool, and an outlet of one end of the communicating pipe located in the oil pool is located in water.
8. An experimental apparatus for determining the effect of a pool fire on a pipeline as claimed in claim 7, wherein said oil pool is also equipped with a constant level system for controlling the water level to be constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210099939.2A CN114428100A (en) | 2022-01-27 | 2022-01-27 | Experimental device for measuring influence of pool fire on pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210099939.2A CN114428100A (en) | 2022-01-27 | 2022-01-27 | Experimental device for measuring influence of pool fire on pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN114428100A true CN114428100A (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210099939.2A Pending CN114428100A (en) | 2022-01-27 | 2022-01-27 | Experimental device for measuring influence of pool fire on pipeline |
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| Country | Link |
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| CN (1) | CN114428100A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551361A (en) * | 2015-12-10 | 2016-05-04 | 中国石油大学(华东) | Wide-water-surface oil pool fire combustion simulation device under effect of environmental wind |
| CN205263045U (en) * | 2015-11-19 | 2016-05-25 | 清华大学 | Fuel trickling fire combustion experiment platform with adjustable concatenation type inclination |
| CN212780404U (en) * | 2020-07-07 | 2021-03-23 | 国网安徽省电力有限公司电力科学研究院 | Combustion and permeation characteristic test platform for oil pit flame-retardant fire-insulating layer of converter transformer |
| CN112557441A (en) * | 2020-11-30 | 2021-03-26 | 西南石油大学 | Experimental platform and method for influence of gas pipeline fire injection on safety of adjacent liquid hydrocarbon pipes |
-
2022
- 2022-01-27 CN CN202210099939.2A patent/CN114428100A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205263045U (en) * | 2015-11-19 | 2016-05-25 | 清华大学 | Fuel trickling fire combustion experiment platform with adjustable concatenation type inclination |
| CN105551361A (en) * | 2015-12-10 | 2016-05-04 | 中国石油大学(华东) | Wide-water-surface oil pool fire combustion simulation device under effect of environmental wind |
| CN212780404U (en) * | 2020-07-07 | 2021-03-23 | 国网安徽省电力有限公司电力科学研究院 | Combustion and permeation characteristic test platform for oil pit flame-retardant fire-insulating layer of converter transformer |
| CN112557441A (en) * | 2020-11-30 | 2021-03-26 | 西南石油大学 | Experimental platform and method for influence of gas pipeline fire injection on safety of adjacent liquid hydrocarbon pipes |
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Application publication date: 20220503 |