1. A fire smoke damage simulation system is characterized by comprising a smoke generating device (1), a smoke damage device (6) and a smoke purifying device (12); the smoke generating device (1) is connected with the smoke damage device (6) through a smoke inlet pipeline (14), and the smoke damage device (6) is connected with the smoke purification device (12) through a smoke outlet pipeline (15).

2. A fire smoke damage simulation system according to claim 1, wherein the test object is a material, a component, an electronic equipment facility or the like.

3. A fire smoke damage simulation system according to claim 1, wherein the smoke generating device (1) comprises a gas cylinder (2) filled with oxygen, nitrogen and air, a mass flow controller (3), a fuel boat (4), an ignition device (5), and the fire smoke composition, concentration and combustion mode can be adjusted.

4. A fire smoke damage simulation system according to claim 3, wherein said smoke generating device (1) simulates different smoke generating modes of fuel pyrolysis and ignition by changing ignition mode, and can mix fuels of different components and concentrations.

5. A fire smoke damage simulation system according to claim 1, wherein the smoke damage device (6) is provided with an observation window (8) and an automatic temperature and humidity control system (9), which can simulate conditions such as temperature and humidity of the environment after a fire and monitor the change condition of a test object.

6. A fire smoke damage simulation system according to claim 5, wherein the working chamber of the fire smoke damage device (6) is made of corrosion-resistant material such as PP, which can prevent the smoke from corroding and damaging the device, and the outer box is made of stainless steel, which can shield electromagnetic interference.

7. A fire smoke damage simulation system according to claim 5, wherein a detachable filter screen (7) is arranged at the air inlet of the fire smoke damage device (6), and the filter screen (7) can be provided with different meshes, so that fire smoke environments containing smoke particles with different sizes and fire smoke environments for removing the smoke particles can be simulated.

8. A fire smoke damage simulation system according to claim 1, wherein a spraying system (13) is provided in the smoke purification device (12) to treat the discharged fire smoke.

Background

The fire hazard increases along with the frequent production and living activities of human beings, and for materials, components and electronic equipment facilities far away from a fire scene, the materials, the components and the electronic equipment facilities are easily affected by the spread fire hazard smoke gas to cause corrosion damage, pollutant damage and the like, so that the service life of the electronic equipment facilities is reduced, and even the electronic equipment facilities completely fail. The electronic equipment facilities and the like are timely rescued after the fire disaster, so that the economic loss caused by the fire disaster can be effectively controlled. Based on this, the damage condition of the electronic equipment far away from the fire scene after the fire disaster needs to be evaluated so as to timely and effectively provide a rescue scheme.

The experiment of simulating the smoke damage of the fire in a laboratory is an important method for evaluating the damage degree of electronic equipment facilities far away from a fire scene after the fire. The fire smoke damage simulation system can simulate fire smoke environments generated by different smoke generation modes in a laboratory, and enables simulated fire smoke environments to be close to fire smoke environments far away from fire scene after actual fire as far as possible. In general, the laboratory simulation fire smoke damage test system can be used for carrying out fire smoke damage tests, and provides and perfects research means for evaluating fire smoke corrosion, pollutant damage and the like.

Disclosure of Invention

The invention aims to provide a fire smoke damage simulation system which can simulate fire smoke generated by different smoke production modes and reflect the change of environment temperature and humidity after a fire, so that the fire smoke environment is truly reproduced, and the reliability of materials, components, electronic equipment facilities and the like in the fire smoke is effectively evaluated.

In order to realize the above-mentioned inventive functions, the technical solution adopted by the invention to solve the technical problems is as follows: a fire smoke damage simulation experiment system comprises a smoke generating device 1, a smoke damage device 6 and a smoke purifying device 12 which are sequentially connected.

A fire smoke damage simulation system comprises a smoke generating device 1, a smoke damage device 6 and a smoke purifying device 12; the smoke generating device 1 is connected with the smoke damage device 6 through a smoke inlet pipeline 14, and the smoke damage device 6 is connected with the smoke purification device 12 through a smoke outlet pipeline 15.

According to the fire smoke damage simulation system, a test object is a material, a component or an electronic equipment facility and the like.

The smoke generating device 1 comprises a gas storage bottle 2 filled with oxygen, nitrogen and air, a mass flow controller 3, a fuel boat 4 and an ignition device 5; the smoke damage simulation device is used for simulating fire smoke generated by different smoke generation modes, the smoke is conveyed into the smoke damage device 6 through the smoke inlet pipeline 14, and a smoke environment is formed in the working cavity of the smoke damage device 6. The fire smoke components and concentration can be adjusted.

The flue gas damage device 6 comprises a flue gas damage device main box body 11, an automatic temperature and humidity control system 9, an observation window 8, a filter screen 7, a sample rack 10 and the like, provides a closed environment capable of controlling the environmental temperature and humidity, and realizes long-time damage testing on samples. The gas outlet of the flue gas damage device 6 is connected with the flue gas purification device 12 through a flue gas outlet pipeline 15.

The air inlet of the fire smoke damage device 6 is provided with a detachable filter screen 7, the filter screen 7 can be provided with different meshes, and the fire smoke environment containing smoke particles with different sizes and the fire smoke environment for removing the smoke particles can be simulated.

The invention also consists in that it is possible to simulate different smoke-producing modes of combustion and pyrolysis of the fuel, by varying the type of ignition device 5, and to mix fuels of different composition and concentration.

The invention also provides an observation window 8 and an automatic temperature and humidity control system 9 for the smoke damage device 6, which can simulate the conditions of temperature, humidity and the like of the environment after a fire and can monitor the change condition of a test object.

The working cavity of the smoke damage device 6 is made of corrosion-resistant materials such as PP and the like, so that the smoke damage device can be prevented from being corroded; the outer box is made of stainless steel, can shield electromagnetic interference, and provides a good monitoring environment for monitoring the damage change of the test object in real time.

The invention also discloses that a detachable filter screen 7 is arranged at the air inlet of the smoke damage device 6 to regulate and control the deposition size and the quantity of smoke particles on the sample.

The invention also provides a spraying system 13 arranged in the smoke purifying device 12 for treating the discharged fire smoke.

The invention has the beneficial effects that:

compared with the prior art, the device integrates different smoke production modes, smoke damage and environment temperature and humidity control functions, is small in occupied area, high in control precision and more convenient and concise to operate, greatly improves the automation degree, and reduces the influence of human factors on test results. The fire smoke damage simulation system truly simulates the damage of different fire smoke environments to materials, components, electronic equipment facilities and the like, and the synergistic influence of corrosive gas, polluting particulate matters, temperature, humidity and the like on the reliability of the materials, the components, the electronic equipment facilities and the like. And after the experiment is finished, the waste gas in the box can be forcibly discharged through full-automatic control, and the waste gas is purified through a spraying system, so that the experimental environment and the atmospheric environment are effectively prevented from being polluted by the waste gas.

Drawings

FIG. 1 is a schematic diagram of a fire smoke damage simulation system.

In the figure, 1-a smoke generating device, 2-a gas storage bottle, 3-a mass flow controller, 4-a fuel boat, 5-a ignition device, 6-a smoke damage device, 7-a filter screen, 8-an observation window, 9-an automatic temperature and humidity control system, 10-a sample rack, 11-a main box body, 12-a smoke purifying device, 13-a spraying system, 14-a smoke inlet pipeline and 15-a smoke outlet pipeline.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in figure 1, the invention designs a fire smoke damage simulation system, which comprises a smoke generating device 1, a smoke damage device 6, a smoke purification device 12 and a smoke inlet and outlet pipeline. The smoke generating device 1 is connected with the smoke damage device 6 through a smoke inlet pipeline 14. The flue gas damage device 6 is connected with the flue gas purification device 12 through a flue gas outlet pipeline 15.

The smoke generating device 1 comprises a gas storage bottle 2 filled with oxygen, nitrogen and air, a mass flow controller 3, a fuel boat 4 and an ignition device 5. The ignition means 5 comprise heating means and ignition means. The fire smoke components and concentration can be adjusted. The gas storage bottle 2 is connected with the ignition device 5 through an air inlet pipeline, and a mass flow controller 3 is arranged on the connecting pipeline of the gas storage bottle 2 and the ignition device 5. The fuel boat 4 is placed inside the ignition device 5. The smoke generating device 1 simulates different smoke generating modes such as fuel pyrolysis and ignition by changing an ignition mode, and can mix fuels with different components and concentrations.

The smoke generating device 1 is used for simulating fire smoke generated by different smoke generating modes, the smoke is conveyed into the smoke damage device 6 through the smoke inlet pipeline 14, and a smoke environment is formed in a working cavity of the smoke damage device 6.

The flue gas damage device 6 comprises a flue gas damage device main box body 11, an automatic temperature and humidity control system 9, an observation window 8, a filter screen 7, a sample rack 10 and the like, provides a closed environment capable of controlling the environmental temperature and humidity, and realizes long-time damage test on samples; the conditions of temperature, humidity and the like of the environment after the fire disaster can be simulated. The test object can be monitored for changes.

The gas outlet of the flue gas damage device 6 is connected with the flue gas purification device 12 through a flue gas outlet pipeline 15. The inside working chamber that is of main tank 11, the working chamber is corrosion-resistant materials such as PP, can prevent flue gas corrosion damage device, and the outer container is stainless steel material, can shield electromagnetic interference. An air inlet is provided at one side of the main case 11. Ignition device 5 is connected to the air inlet of main tank 11 through flue gas inlet duct 14, air inlet department is provided with detachable filter screen 7. The filter screen 7 can be provided with different meshes and can simulate fire smoke environment containing smoke particles with different sizes and fire smoke environment for removing the smoke particles. The other side of the main box body 11 is provided with an air outlet which is connected with a flue gas outlet pipeline 15. An automatic temperature and humidity control system 9 and a sample holder 10 are provided in the main casing 11. An observation window 8 is provided on the top of the main casing 11.

The smoke purifier 12 is internally provided with a spraying system 13 which can treat the discharged fire smoke.

The sample holder 10 is used for holding fire smoke damage experiment samples. The test objects of the fire smoke damage experiment are materials, components, electronic equipment facilities and the like.

When the fire smoke damage simulation system is used, the atmosphere flow in the gas storage bottle 2 is regulated and controlled through the mass flow controller 3, atmospheres with different flow rates are provided for fuel in the fuel boat 4, the fuel in the fuel boat 4 can be pyrolyzed or ignited in different modes by the heating device and the ignition device to generate fire smoke, and the fire smoke damage simulation system enters the smoke damage device 6 through the smoke inlet pipeline 14 and the detachable filter screen 7 and forms smoke damage atmosphere in the working cavity of the fire smoke damage simulation system. Meanwhile, the temperature and the relative humidity in the smoke damage device 6 are controlled through the temperature and humidity automatic control system 9, the damage test of the sample is completed in the fire smoke environment with constant temperature and humidity in the working cavity, when the experiment is finished and the waste gas is discharged, the clean gas is input into the working cavity through the air inlet pipe, and the waste gas in the working cavity is forcibly discharged into the smoke purification device 12 through the smoke outlet pipeline 15. Flue gas purification device 12 is including advancing flue gas outlet duct and water mist spray system 13, and water mist spray system 13 carries out the purification treatment of flue gas, and the fire smoke unidirectional flow in flue gas purification device 12 discharges the flue gas damage analog system of fire after the purification treatment, prevents experiment waste gas pollution analog system internal environment and atmospheric environment.

The invention provides a fire smoke damage system capable of regulating and controlling a smoke generation mode, fire smoke components, concentration, smoke environment temperature and humidity and the like, and further describes the following for describing specific implementation modes and effects in detail.

The invention also consists in that it is possible to simulate different smoke-producing modes of combustion and pyrolysis of the fuel, by varying the type of ignition device 5, and to mix fuels of different composition and concentration.

The invention is to generate smoke components in an open flame combustion mode: the mass flow controller 3 can be used for adjusting the air flow and igniting the fuel by using an ignition device, so that the fuel generates smoke in an open flame combustion mode, and the damage of the smoke to materials, components and electronic equipment facilities in a combustion mode is simulated.

The invention aims to generate smoke components in a pyrolysis mode: the mass flow controller 3 can be used for adjusting the air flow and adjusting the temperature of the heating device to the thermal decomposition temperature of the fuel, so that the fuel can generate smoke in a pyrolysis mode, and the damage of the smoke to materials, components and electronic equipment facilities in the pyrolysis mode can be simulated.

It should be noted that the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same, and the invention should be applied more broadly for the damage simulation of fire smoke, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered in the technical solution of the present invention.