CN211785374U

CN211785374U - Tunnel fire test furnace

Info

Publication number: CN211785374U
Application number: CN201922066432.3U
Authority: CN
Inventors: 马世鹏; 郭兵; 韦彬
Original assignee: SHANDONG START MEASUREMENT CONTROL EQUIPMENT CO Ltd
Current assignee: SHANDONG START MEASUREMENT CONTROL EQUIPMENT CO Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-10-27
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a tunnel fire test stove, including upper cover plate, lower apron, bearing support platform and furnace body peripheral wall, be equipped with the regulation support column between upper cover plate and the bearing support platform, lower apron covers on bearing support platform, and bearing support platform is installed to the bottom of furnace body peripheral wall, and upper cover plate detachable installs at the top of furnace body peripheral wall, is formed with the furnace chamber between upper cover plate, bearing support platform and the furnace body peripheral wall, but the size of furnace chamber of furnace body peripheral wall independent assortment. Has the following advantages: the test member simple to operate, the test member can be by stable fixed, and the test data accuracy is high, and the error is little.

Description

Tunnel fire test furnace

Technical Field

The utility model relates to a tunnel fire test stove belongs to thermal engineering field flow, energy metering device.

Background

With the increasing number of building fires, there is an increasing interest in the change in the performance of tunnel building components under the effect of fires and the resulting hazards. In the case of building structures, fires are an external action, as are disasters such as wind and earthquakes. The external action is mainly embodied as the influence of high temperature on the structure, namely the high temperature causes the structure to generate internal temperature force and the strength and rigidity of the mechanism material to be reduced, so that the distribution of the indoor air temperature of the building and the change rule of the indoor air temperature along with time during fire disaster are accurately described, and the external action is the first problem to be solved in the research of structural fire resistance. The research on the fire resistance of building components by simulating actual fire by using a fire test furnace is one of the main means adopted at home and abroad.

At present, fire test furnaces are fixed integrated furnace bodies, fire combustion conditions cannot be effectively simulated when members are tested, test difficulty of the test pieces is high, installation process is complicated, and requirements on operators and hoisting equipment are high; meanwhile, the integrated furnace body enables the test member to be difficult to be stably fixed, so that the accuracy of the tested data is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to above not enough, provide a tunnel fire test stove, test component simple to operate, test component can be by stable fixed, and the test data accuracy is high, and the error is little.

For solving the technical problem, the utility model discloses a following technical scheme:

the utility model provides a tunnel fire test stove, includes upper cover plate, lower apron, bearing support platform and furnace body peripheral wall, is equipped with the regulation support column between upper cover plate and the bearing support platform, and the lower apron covers on bearing support platform, and the bottom of furnace body peripheral wall is installed at bearing support platform, and upper cover plate detachable installs the top at furnace body peripheral wall, is formed with the furnace chamber between upper cover plate, bearing support platform and the furnace body peripheral wall, and the size of furnace chamber can freely be made up to the furnace body peripheral wall.

Furthermore, the upper cover plate is circular, is made of high-quality refractory fiber modules, has the functions of fire resistance and heat preservation, and is covered with a layer of polycrystalline mullite fiber felt.

Furthermore, a plurality of hoisting noses are arranged at the top end of the upper cover plate, so that the upper cover plate is conveniently hoisted.

Furthermore, the lower cover plate is built on the bearing support platform by adopting refractory bricks with good temperature resistance and pressure resistance, and a test piece is arranged on the lower cover plate.

Furthermore, a plurality of upper burners are uniformly arranged on the upper cover plate, and the upper burners are connected with gas pipeline hoses;

and a plurality of lower burners are uniformly arranged on the bearing support platform, and the lower burners are connected with gas pipeline hoses.

Furthermore, a smoke exhaust pipeline is arranged at the center of the bearing support platform, an air outlet of the smoke exhaust pipeline extends into the furnace chamber, and high-temperature smoke in the furnace is exhausted to the spraying water tank through the smoke exhaust pipeline.

Furthermore, a plurality of supporting columns are installed at the bottom of the bearing support platform, and the supporting columns are of a bearing prefabricated concrete structure, so that the bearing support platform has a certain space height and is convenient for installing a smoke exhaust pipeline.

Furthermore, the height of the adjusting support column can be adjusted, the adjusting support column is used for supporting the upper cover plate, and the adjusting support column is detachable relative to the bearing support platform.

Furthermore, the upper cover plate and the bearing support platform are respectively provided with a positioning hole, and the positioning holes are used for positioning the upper cover plate and the lower cover plate so that the upper cover plate and the lower cover plate are consistent and symmetrical in position.

Furthermore, the test piece is cylindrical, an upper combustor and a lower combustor are arranged in the middle of the upper circumference and the lower circumference of the test piece, and the number of the combustors which can be matched with each other for use is increased when the diameter is larger.

The utility model adopts the above technical scheme, compare with prior art, have following technological effect:

tunnel fire test stove solved among the prior art technical problem that the test member installation is loaded down with trivial details, the measured data accuracy is poor, tunnel fire test stove test member simple to operate, the measured data accuracy is high, the error is little.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of a tunnel fire test furnace of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic structural view of the mounting member of FIG. 1;

in the figure, the position of the upper end of the main shaft,

10-upper combustor, 11-upper cover plate, 12-hoisting nose, 20-test piece, 21-adjusting support column, 30-lower cover plate, 31-bearing support platform, 32-lower combustor, 33-support column, 34-exhaust flue and 35-positioning hole.

Detailed Description

Embodiment 1, as shown in fig. 1 to 3, a tunnel fire test furnace includes an upper cover plate 11, a lower cover plate 30, a bearing support platform 31 and a furnace body peripheral wall, wherein an adjusting support column 21 is disposed between the upper cover plate 11 and the bearing support platform 31, the lower cover plate 30 covers the bearing support platform 31, the bottom of the furnace body peripheral wall is mounted on the bearing support platform 31, the upper cover plate 11 is detachably mounted on the top of the furnace body peripheral wall, a furnace chamber is formed between the upper cover plate 11, the bearing support platform 31 and the furnace body peripheral wall, and the furnace body peripheral wall can be freely combined with the size of the furnace chamber.

The shape of the upper cover plate 11 is circular, the upper cover plate 11 is made of high-quality refractory fiber modules, the upper cover plate 11 has the functions of fire resistance and heat preservation, and a layer of polycrystalline mullite fiber felt covers the upper cover plate 11.

The top end of the upper cover plate 11 is provided with a plurality of hoisting noses 12, so that the upper cover plate 11 is conveniently hoisted.

A plurality of upper burners 10 are uniformly arranged on the upper cover plate 11, and the upper burners 10 are connected with gas pipeline hoses.

The lower cover plate 30 is built on the bearing support platform 31 by adopting refractory bricks with good temperature resistance and pressure resistance, the lower cover plate 30 covers part of the bearing support platform 31, and the test piece 20 is installed on the lower cover plate 30.

A plurality of lower burners 32 are uniformly arranged on the bearing support platform 31, and the lower burners 32 are connected with gas pipeline hoses.

The bearing support platform 31 is provided with a smoke exhaust pipeline 34 at the center, an air outlet of the smoke exhaust pipeline 34 extends into the furnace chamber, high-temperature smoke in the furnace is exhausted to the spraying water tank through the smoke exhaust pipeline 34, and the smoke is exhausted to the outside after being cooled.

The bearing support platform 31 is made of steel structure, and supports the arrangement of the exhaust flue 34 and the arrangement of the lower combustor 32.

The bottom of the bearing support platform 31 is provided with a plurality of supporting upright posts 33, and the supporting upright posts 33 are of a bearing prefabricated concrete structure, so that the bearing support platform 31 has a certain space height and is convenient for the installation of the exhaust flue 34.

The height of the adjusting support column 21 can be adjusted, the adjusting support column 21 is detachable relative to the bearing support platform 31, the adjusting support column 21 can be detached and moved for different test pieces, the supporting connection between the bearing support platform 31 and the upper cover plate 11 is not limited to a stand column connection mode, and in practical application, a frame and other connection structures can be adopted.

The upper cover plate 11 and the bearing support platform 31 are both provided with positioning holes 35, the positioning holes 35 are used for positioning the upper cover plate 11 and the lower cover plate 30, so that the upper cover plate 11 and the lower cover plate 30 are consistent and symmetrical in upper and lower positions, the test piece 20 is conveniently positioned on the lower cover plate 30 and the upper cover plate 11, a good positioning effect can be achieved on the test piece 20, and the accuracy of a test result of the test piece 20 can be guaranteed.

The test piece 20 is cylindrical, burners are arranged in the middle of the upper circumference and the lower circumference of the test piece 20, the larger the diameter is, the larger the number of burners which can be used in a matched mode is, and the space of the furnace chamber and the number of burners can be reasonably selected according to the difference of the diameter and the weight of the test piece 20.

The utility model discloses tunnel fire test stove's upper and lower part detachable, can part the upper cover plate when the test component is installed, can follow top installation tunnel test component this moment, because of the furnace chamber is opened, it is more convenient consequently to test the component installation, also control the mounted position of test component very easily, the location is accurate, the test component can be by stable fixing in the furnace chamber, the test component that awaits measuring is installed and is accomplished the back, slowly to closing the upper cover plate and carry out test work, because of the test component can be by stable fixed, consequently, the data accuracy that measures is high, the error is little. Simultaneously the utility model discloses tunnel fire test stove can carry out the test that the single face received fire or two-sided receiving fire to the tunnel component according to the test requirement, and application scope is wider.

The utility model discloses tunnel fire test stove improves into mobilizable furnace body with the integrative fixed furnace body among the prior art, great simplification the installation of test component to can be fine form stable fixed to the test component, the data accuracy that measures is high, and the error is little.

The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A tunnel fire test furnace is characterized in that: including upper cover plate (11), lower cover plate (30), bearing support platform (31) and furnace body peripheral wall, be equipped with between upper cover plate (11) and bearing support platform (31) and adjust support column (21), lower cover plate (30) cover on bearing support platform (31), bearing support platform (31) are installed to the bottom of furnace body peripheral wall, upper cover plate (11) detachable installs the top at the furnace body peripheral wall, upper cover plate (11), be formed with the furnace chamber between bearing support platform (31) and the furnace body peripheral wall, but the size of furnace chamber is assembled freely to the furnace body peripheral wall.

2. The fire testing furnace for tunnels according to claim 1, wherein: the shape of the upper cover plate (11) is circular, the upper cover plate (11) is made of high-quality refractory fiber modules, the upper cover plate (11) has the functions of fire resistance and heat preservation, and a layer of polycrystalline mullite fiber felt covers the upper cover plate (11).

3. The fire testing furnace for tunnels according to claim 1, wherein: the top end of the upper cover plate (11) is provided with a plurality of hoisting noses (12), so that the upper cover plate (11) is conveniently hoisted.

4. The fire testing furnace for tunnels according to claim 1, wherein: the lower cover plate (30) is built on the bearing support platform (31) by adopting refractory bricks with good temperature resistance and pressure resistance, and the lower cover plate (30) is provided with a test piece (20).

5. The fire testing furnace for tunnels according to claim 4, wherein: a plurality of upper burners (10) are uniformly arranged on the upper cover plate (11), and the upper burners (10) are connected with a gas pipeline hose;

a plurality of lower portion combustors (32) are evenly installed on the bearing support platform (31), and the lower portion combustors (32) are connected with a gas pipeline hose.

6. The fire testing furnace for tunnels according to claim 1, wherein: a smoke exhaust pipeline (34) is arranged at the center of the bearing support platform (31), an air outlet of the smoke exhaust pipeline (34) extends into the furnace chamber, and high-temperature smoke in the furnace is exhausted to the spraying water tank through the smoke exhaust pipeline (34).

7. The fire testing furnace for tunnels according to claim 1, wherein: a plurality of supporting columns (33) are installed at the bottom of the bearing support platform (31), and the supporting columns (33) are of a bearing prefabricated concrete structure, so that the bearing support platform (31) has a certain space height and is convenient for installing a smoke exhaust pipeline (34).

8. The fire testing furnace for tunnels according to claim 1, wherein: the height of the adjusting support column (21) can be adjusted and is used for supporting the upper cover plate (11), and the adjusting support column (21) is detachable relative to the bearing support platform (31).

9. The fire testing furnace for tunnels according to claim 1, wherein: the upper cover plate (11) and the bearing support platform (31) are respectively provided with a positioning hole (35), and the positioning holes (35) are used for positioning the upper cover plate (11) and the lower cover plate (30) to enable the upper cover plate (11) and the lower cover plate (30) to be consistent and symmetrical in position.

10. The fire testing furnace for tunnels according to claim 5, wherein: the test piece (20) is cylindrical, an upper combustor (10) and a lower combustor (32) are arranged in the middle of the upper circumference and the lower circumference of the test piece (20), and the number of the combustors which can be matched with each other to use is increased when the diameter is larger.