CN217443270U - Modularized liquefied petroleum gas diffusion burner test device - Google Patents

Abstract

The utility model discloses a modularization liquefied petroleum gas diffusion burner test device, the liquefied petroleum gas source is linked together through first air supply line and each combustor main part, and the nitrogen gas source communicates through first three-way valve and first air supply line. Through the modularized liquefied petroleum gas diffusion burner test device with the optimized design, the real fire scene with a plurality of fire sources and different arrangement modes of the fire sources can be simulated by changing the arrangement mode of each burner main body. After the supply of the liquefied petroleum gas is cut off after the test is finished, nitrogen can be blown into the gas supply pipeline and the combustor cavity through the nitrogen source, so that the residual liquefied petroleum gas can be thoroughly discharged to each combustor body for combustion and consumption, and the environmental pollution and the potential explosion danger can be avoided.

Description

Modularized liquefied petroleum gas diffusion burner test device

Technical Field

The utility model belongs to the technical field of the experimental technique of small-size conflagration and specifically relates to a modularization liquefied petroleum gas diffusion burner test device.

Background

The fire of many fires frequently appears in actual conflagration, and according to fire accident statistics in the past, the fire of many fires has stronger destructiveness, also is more difficult to control, thereby it often can be because the high temperature that produces of interaction between the burning things which can cause the surrounding object temperature to rise rapidly with the heat radiation, even ignite the object around, initiate regional conflagration. The fire hazard with multiple fires has high combustion intensity, greatly aggravates the damage to the whole building and internal facilities, increases the difficulty of fire extinguishing and rescue, and brings serious threat to the life and property safety of people. Therefore, the characteristics and the law of multi-fire combustion are deeply known and understood, and the method has extremely important theoretical significance and practical significance for improving the prevention and treatment capacity of forest and city fires and traffic tunnel fires and ensuring the life and property safety of fire scene personnel.

The research of multi-fire generally adopts small-size fire tests, the fire source generally adopts liquid oil fire, a plurality of fire sources can be used simultaneously in the tests, after the tests are finished, the fire sources are difficult to extinguish simultaneously, the development of the liquid oil fire is not controlled artificially, and when sudden conditions occur in the test process, the fire sources are difficult to control or extinguish in time. In addition, the test environment is polluted by partial combustion products generated in the liquid oil-fire combustion process. In view of the defects of the liquid oil fire and the solid fire, the fire source adopted in the test can be replaced by clean, easily-obtained and easily-controlled liquefied petroleum gas.

When the gas fire is in use, the power of the fire source can be controlled by controlling the flow, so that the control is convenient, and the combustion process of each fire source can be cut off by directly closing the combustible gas supply valve after the experiment is finished or when an emergency is met. Meanwhile, a large amount of polluting combustion products cannot be generated due to insufficient combustion in the combustion process, so that the gas fire has the advantages of easier control, no polluting combustion products and the like compared with liquid oil fire. In addition, some burners existing in the market have only one burner body, so that a multi-fire test cannot be performed by adjusting the arrangement and placement of the fire sources, and the combustible gas remaining in the burners after the test is finished may cause a risk of explosion. Therefore, the modularized liquefied petroleum gas diffusion burner is adopted to carry out the multi-fire test, so that the convenience of the test can be ensured, excessive polluting combustion products cannot be generated, and the safety of the test can be ensured.

SUMMERY OF THE UTILITY MODEL

For the technical problem who exists among the solution background art, the utility model provides a modularization liquefied petroleum gas diffusion combustor test device.

The utility model provides a pair of modularization liquefied petroleum gas diffusion combustor test device, include: the device comprises a liquefied petroleum gas source, a first gas supply pipeline, a nitrogen source, a second gas supply pipeline, a burner main body, a first three-way valve, a second three-way valve, a gas flow controller and an electronic ignition device;

the liquefied petroleum gas source is communicated with a first port of the first three-way valve through a first air supply pipeline, and the nitrogen source is communicated with a second port of the first three-way valve through a second air supply pipeline; the third port of the first three-way valve is communicated with the gas flow controller through a pipeline; the gas flow controller is communicated with a first port of the second three-way valve, and a second port and a third port of the second three-way valve are communicated with each burner body.

Preferably, the gas flow meter is further included, and the gas flow meter is arranged on the first gas supply pipeline.

Preferably, a first pressure reducing valve and a first check valve are arranged on the first air supply pipeline, and a second pressure reducing valve and a second check valve are arranged on the second air supply pipeline.

Preferably, the first pressure reducing valve, the first check valve and the first three-way valve are arranged in this order from the liquefied petroleum gas source to the first three-way valve on the first gas supply line.

Preferably, the second pressure reducing valve, the second check valve, and the first three-way valve are provided in this order from the nitrogen gas source to the first three-way valve on the second gas supply line.

Preferably, a top-opening combustion chamber is arranged inside each burner body.

Preferably, an electronic ignition device is provided at a position 4mm above the combustion hole of each burner body for igniting the liquefied petroleum gas discharged from the combustion chamber.

Preferably, the lateral side of each burner main body is provided with a device similar to a buckle for fixedly connecting the burner main bodies when the burner main bodies are combined and arranged.

Preferably, the number of the burner bodies can be increased or decreased appropriately according to experimental needs, and various arrangement combinations can be performed to obtain the required fire source size and fire source spacing.

The utility model discloses in, the modularization liquefied petroleum gas diffusion burner test device that provides, the liquefied petroleum gas source is through first air supply line and each combustor main part intercommunication, and each combustor main part can suitably increase or reduce to can carry out fixed connection through the buckle device of combustor main part side, the nitrogen gas source passes through second air supply line and first air supply line intercommunication. Through above-mentioned optimally designed modularization liquefied petroleum gas diffusion burner test device, thereby the accessible changes the arrangement mode of each combustor main part and simulates the true fire scene that has many places fire sources and the different arrangement mode of each fire source, and at the end of the experiment, cut off liquefied petroleum gas's supply back, the accessible nitrogen gas source blows nitrogen gas in to air supply line and the main burner cavity, make the remaining liquefied petroleum gas of air supply line thoroughly discharge to main burner and burn the consumption, thereby can avoid environmental pollution and potential explosion danger.

Drawings

Fig. 1 is a schematic structural diagram of a modular lpg diffusion burner test apparatus provided by the present invention.

Fig. 2 is a top view of the burner body.

Fig. 3 is a schematic view of an arrangement in which the respective burner bodies can be combined.

Fig. 4 is a top view of the burner body in a snap-fit connection.

Fig. 5 is a schematic view of a snap fit.

Detailed Description

As shown in fig. 1, fig. 1 is a schematic structural diagram of a modular lpg diffusion burner test apparatus according to the present invention. Fig. 2 is a top view of the main burner, as shown in fig. two. Fig. 3 is a schematic view showing an arrangement manner in which the burner bodies can be combined, as shown in fig. three. As shown in fig. 4, fig. 4 is a top view of the burner body in a snap-fit connection manner. Fig. 5 is a schematic view of the installation of each guide rail, as shown in fig. five.

Referring to fig. 1, the utility model provides a modularization liquefied petroleum gas diffusion burner test device, include: liquefied petroleum gas source, first air supply pipeline, nitrogen source, second air supply pipeline, each combustor main part, first three-way valve, second three-way valve, gas flow controller, electron ignition.

The liquefied petroleum gas source is communicated with a first port of the first three-way valve through a first air supply pipeline, and the nitrogen source is communicated with a second port of the first three-way valve through a second air supply pipeline; the third port of the first three-way valve is communicated with the gas flow controller through a pipeline; the gas flow controller is communicated with a first port of a second three-way valve, and a second port and a third port of the second three-way valve are communicated with each burner body.

In the specific working process of the modularized liquefied petroleum gas diffusion burner test device, the electronic ignition device is firstly turned on, then the liquefied petroleum gas source delivers the liquefied petroleum gas into each burner main body through the first gas supply pipeline, and the electronic ignition device ignites the liquefied petroleum gas released from each burner main body combustion hole; after the test is finished, the electronic ignition device is turned on again, the supply of the liquefied petroleum gas is cut off, then the nitrogen source is turned on, nitrogen is blown into the air supply pipeline and the main burner cavity, so that the residual liquefied petroleum gas is thoroughly discharged to each burner body for burning and consumption, the electronic ignition device and the nitrogen source are turned off after the fire is extinguished for 10s, and the residual liquefied petroleum gas is completely consumed.

In the specific embodiment, it also comprises an electronic ignition device 10, each burner body is provided with a combustion hole on the top, and the electronic ignition device is positioned on the upper part of the combustion hole and can simultaneously ignite the liquefied petroleum gas released from each burner body.

In the specific embodiment, the gas flow controller 8 is further included, and the gas flow controller is arranged on the first gas supply pipeline, and can adjust and monitor the flow of the liquefied petroleum gas, so that the combustion power can be conveniently calculated and adjusted.

In other specific embodiments, each burner body 9 is further included, the number of the burner bodies can be increased or decreased appropriately according to experimental needs, and the burner bodies are connected through the fasteners arranged on the burners to perform various arrangements and combinations, so as to obtain the required fire source size and fire source spacing.

In order to improve the safety of the gas pipeline, in a specific embodiment, a first pressure reducing valve and a first check valve are arranged on the first gas supply pipeline, and a second pressure reducing valve and a second check valve are arranged on the second gas supply pipeline.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A modular liquefied petroleum gas diffusion burner test apparatus, comprising: the device comprises a liquefied petroleum gas source (1), a first gas supply pipeline, a nitrogen source (2), a second gas supply pipeline, a burner main body (9), a first pressure reducing valve (3), a first check valve (4), a first three-way valve (5), a second pressure reducing valve (6), a second check valve (7), a gas flow controller (8) and an electronic ignition device (10);

the liquefied petroleum gas source (1) is communicated with a first port of the three-way valve (5) through a first gas supply pipeline, and the nitrogen source (2) is communicated with a second port of the three-way valve (5) through a second gas supply pipeline; a third port of the three-way valve (5) is communicated with the gas flow controller (8) through a pipeline; the gas flow rate controller (8) is communicated with a second three-way valve (11), and the second three-way valve (11) is communicated with each burner body (9).

2. The modular lpg diffusion burner test unit of claim 1, further comprising a gas flow controller (8), the first gas supply line being provided with a gas flow controller (8).

3. The modular lpg diffusion burner test unit according to claim 2, wherein a first pressure reducing valve (3) and a first check valve (4) are provided on the first air supply line, and a second pressure reducing valve (6) and a second check valve (7) are provided on the second air supply line.

4. A modular lpg diffusion burner test unit according to claim 2 or 3, c h a r a c t e r i z e d in that a first pressure reducing valve (3), a first non-return valve (4) and a first three-way valve (5) are arranged in succession on the first gas supply line from the lpg source (1) in the direction of the first three-way valve (5).

5. A modular lpg diffusion burner test unit as claimed in claim 1, characterized in that a second pressure reducing valve (6), a second non-return valve (7) and a first three-way valve (5) are arranged in succession on the second gas supply line from the nitrogen source (2) in the direction of the first three-way valve (5).

6. The modular lpg diffusion burner test unit according to claim 4, characterized in that inside each burner body (9) there is provided a combustion chamber with an open top.

7. The modular lpg diffusion burner test unit as set forth in claim 1, wherein an electronic ignition device (10) is provided at a position 4mm above the combustion hole of each burner body for igniting the lpg gas discharged from the combustion chamber.

8. The modular lpg diffusion burner test unit as set forth in claim 1, wherein each side of each burner body (9) is provided with a similar snap-fit means for fixedly connecting each burner body when they are arranged in combination.

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