CN217586324U - Low-carbon-emission fire-fighting smoke exhaust fan high-temperature resistance performance test device - Google Patents
Low-carbon-emission fire-fighting smoke exhaust fan high-temperature resistance performance test device Download PDFInfo
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- CN217586324U CN217586324U CN202220316715.8U CN202220316715U CN217586324U CN 217586324 U CN217586324 U CN 217586324U CN 202220316715 U CN202220316715 U CN 202220316715U CN 217586324 U CN217586324 U CN 217586324U
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Abstract
The utility model relates to a fire control smoke exhaust fan high temperature resistance performance test device is discharged to low carbon, include the circulating line and locate heating furnace, mixed flow plate, thermocouple and the test area on the circulating line, heating furnace inner wall with one side be equipped with a plurality of nozzles. The utility model has the advantages that the problem of low heat-clearing efficiency and high cost of the traditional test device adopting resistance wires is effectively solved by heating the burner, and the test waiting time is reduced; the design of the sunken hidden type burner nozzle avoids the flame from being blown out by circulating hot air, so that the test process is more smooth and stable; the circulation pipeline is favorable for recycling hot air, heat loss is reduced through the heat insulation layer, the hot air which returns to the heating furnace again through the circulation pipeline still has high temperature, the required temperature can be reached through reheating, energy is saved, and the test efficiency is improved.
Description
Technical Field
The utility model relates to a low carbon emission fire control smoke exhaust fan high temperature resistance performance test device.
Background
The fire-fighting smoke exhaust fan is a fixed electric device used for exhausting smoke in a mechanical smoke exhaust system, plays an important role when smoke is exhausted in a fire disaster, and a high-temperature resistance test of the fire-fighting smoke exhaust fan is used for detecting the operation condition of the fire-fighting smoke exhaust fan in a high-temperature environment, and the test is a common detection means for ensuring the normal operation of the fire-fighting smoke exhaust fan in the fire disaster. The fire-fighting smoke exhaust fan high-temperature resistance test is to install the fire-fighting smoke exhaust fan on an air duct, then the fire-fighting smoke exhaust fan discharges hot air heated by a fire-fighting smoke exhaust fan high-temperature resistance test furnace through the air duct, and the high-temperature resistance of the fire-fighting smoke exhaust fan is measured.
Present fire control smoke exhaust fan high temperature resistance performance test stove, adopt the electrical heating mode to heat the air, thereby the resistance wire circular telegram in the test stove produces heat heated air, in order to support the resistance wire and to its insulation, a ceramic tube is established to the cover on the resistance wire, so the resistance wire need with air in the ceramic tube and ceramic tube heat back retransmission heat heated air, heating efficiency is extremely low, often need several hour just can be with the air heating in the pipeline to experimental required temperature, long-time electrical heating consumes a large amount of electric power, still there is high-tension electricity federation electricity, the potential safety hazard of electric leakage. Meanwhile, a large amount of hot air is needed for the high-temperature resistance test of the fire-fighting smoke exhaust fan, the test furnace is required to continuously circularly heat the air, a fan and a circulating pipeline are required to be matched to circulate and heat the air, the construction cost is high, the multi-path resistance wires and the porcelain tubes are required to be periodically replaced due to the complex pipeline, and the maintenance cost is high.
When the high-temperature resistance test furnace of the existing fire-fighting smoke exhaust fan is used for carrying out a high-temperature resistance test on the fire-fighting smoke exhaust fan, pipelines are divided into two types, wherein one type is open, namely, hot air is directly discharged into the air after passing through the fire-fighting smoke exhaust fan, so that a large amount of hot air is discharged in the surrounding environment and is not beneficial to environmental protection; the other type is a circulating pipeline, the air quantity of the fire-fighting smoke exhaust fan is large, and the circulated hot air returns to the furnace body to blow out the burner, so that the temperature in the furnace is reduced to generate adverse effect on the test.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned problem that exists among the prior art, the utility model discloses a main aim at provides an energy saving, efficient fire control smoke exhaust fan high temperature resistance performance test device.
The technical scheme of the utility model is like this:
the utility model provides a low carbon emission fire control smoke exhaust fan high temperature resistance performance test device, includes:
a circulation line;
the heating furnace is arranged on the circulating pipeline, and an air inlet and an air outlet are respectively arranged on two opposite surfaces of the heating furnace;
the test area is arranged on the circulating pipeline and used for installing a fire-fighting smoke exhaust fan;
the burners are arranged on the inner wall of the heating furnace, and the burners are arranged on the same side of the inner wall of the heating furnace, so that the heating efficiency is prevented from being influenced by the impact generated by flame;
the thermocouple is arranged on the circulating pipeline and is positioned in front of the test area and close to the test area along the air flowing direction in the circulating pipeline so as to measure the temperature of hot air entering the fire-fighting smoke exhaust fan;
the mixed flow plate is arranged on the circulating pipeline and is arranged at the air outlet of the heating furnace.
Preferably, along the air flowing direction in the circulating pipeline, the circulating pipeline section between the heating furnace and the test area is a first pipeline, the circulating pipeline section between the test area and the heating furnace is a second pipeline, and the length of the first pipeline is smaller than that of the second pipeline.
Preferably, the mixed flow plate comprises a plurality of layers of porous steel plates, the distribution density of the round holes on the porous steel plates is uneven, the gas pressure at the positions with fewer round holes is large, gas can move to the positions with more round holes, the plurality of layers of porous steel plates are sequentially connected through connecting rods, the round hole density on the two layers of porous steel plates adjacent to each other along the axial direction of the mixed flow plate is alternately distributed, namely, the distribution density of the round holes on the two layers of porous steel plates adjacent to each other along the air circulation direction is not corresponding, so that hot air flowing out of the air outlet can move for multiple times on the way through the plurality of layers of mixed flow plates to achieve the mixed effect.
Preferably, the circulation pipeline comprises an inner pipeline and a heat insulation layer, the inner pipeline is a steel pipe, and the heat insulation material is wrapped on the outer side of the steel pipe, so that heat dissipation of hot air in the circulation pipeline is reduced.
Preferably, one side of the inner wall of the heating furnace is provided with a plurality of grooves, and the bottom of each groove is provided with the burner, so that the flame of the burner is prevented from being blown out by hot air flowing circularly.
Preferably, the ports of the circulating pipelines close to the two sides of the test area are provided with flanges or reducing pipes, so that the fire-fighting smoke exhaust fan is connected with the circulating pipelines.
Preferably, six thermocouples are arranged on the circulating pipeline.
Preferably, the heating furnace is of a hollow cuboid structure.
The utility model has the advantages of it is following and beneficial effect:
a high-temperature resistance performance test device of a low-carbon-emission fire-fighting smoke exhaust fan effectively solves the problems of low heat-clearing efficiency and high cost of a traditional test device by adopting a resistance wire through heating of a burner, and reduces the test waiting time; the design of the hidden type burner recess avoids the flame from being blown out by the circulating hot air, so that the test process is more smooth and stable; the circulation pipeline is favorable for recycling hot air, heat loss is reduced through the heat insulation layer, the hot air which returns to the heating furnace again through the circulation pipeline still has high temperature, the required temperature can be reached through reheating, energy is saved, and the test efficiency is improved.
Drawings
Fig. 1 is a schematic view of a high temperature resistance test device of a low-carbon emission fire-fighting smoke exhaust fan according to an embodiment of the present invention;
fig. 2 is a schematic view of a mixed flow plate structure of a low-carbon emission fire-fighting smoke exhaust fan high-temperature resistance test device provided by the embodiment of the utility model;
fig. 3 is a top view of the low-carbon emission fire-fighting smoke exhaust fan high-temperature resistance test device provided by the embodiment of the utility model;
fig. 4 is a schematic view of the connection between the heating furnace provided by the embodiment of the present invention and the circulating pipeline in the test area;
fig. 5 is a schematic structural diagram of a burner of a heating furnace provided by an embodiment of the present invention.
In the figure: 100. a circulation line; 200. heating furnace; 300. a flow mixing plate; 400. a thermocouple;
500. a test zone; 600. burning a nozzle; 310. a porous steel plate; 320. a connecting rod; 330. a circular hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The invention will be further described with reference to the drawings and specific examples.
As shown in fig. 1 and 3: the utility model discloses fire control smoke exhaust fan high temperature resistance performance test device is discharged to low carbon, include circulation pipeline 100 and locate heating furnace 200, mixed flow plate 300, thermocouple 400 and test area 500 on the circulation pipeline 100.
A circulation line 100; the circulation pipeline 100 comprises an inner pipeline and a heat insulation layer, the inner pipeline is specifically a steel pipe, and the outer side of the steel pipe is wrapped with a heat insulation material, so that heat dissipation of hot air in the circulation pipeline 100 is reduced.
Referring to fig. 5, in the heating furnace 200, a plurality of burners 600 are arranged in the heating furnace 200, and the burners 600 are all located on the same side of the heating furnace 200, so that the heating efficiency is prevented from being influenced by the convection of flame;
the test area 500 is used for installing a fire-fighting smoke exhaust fan; the ports of the circulation pipeline 100 close to the two sides of the test area 500 are provided with flanges or variable diameters so as to connect the fire-fighting smoke exhaust fan with the circulation pipeline 100.
A thermocouple 400, wherein the thermocouple 400 is located at the front side of the test area 500 and close to the test area 500 along the air flowing direction in the circulation circuit 100, so as to measure the temperature of the hot air entering the fire-fighting smoke exhaust fan; preferably, six thermocouples 400 are provided on the circulation line 100.
Referring to fig. 2, the flow mixing plate 300 is located at the air outlet of the heating furnace 200 along the air flowing direction in the circular loop 100, the flow mixing plate 300 includes three layers of porous steel plates 310, the distribution density of the circular holes 330 on the porous steel plates 310 is not uniform, the air pressure at the positions with fewer circular holes 330 is large, the air can move to the positions with more circular holes 330, the three layers of porous steel plates 310 are sequentially connected through a connecting rod 320, the density of the circular holes 330 on two adjacent layers of porous steel plates 310 along the axial direction of the flow mixing plate 300 is alternately distributed, that is, the distribution density of the circular holes 330 on two adjacent layers of porous steel plates 310 along the air flowing direction is not corresponding, so that the hot air flowing out of the air outlet of the heating furnace 200 moves for multiple times on the way through the three layers of flow mixing plates 300 to achieve the mixing effect.
Preferably, referring to fig. 4, the heating furnace 200 is a hollow cuboid structure, a plurality of grooves are formed in an inner wall of one side of the heating furnace 200, and the burner 600 is installed at the bottom of the groove to prevent the flame of the burner 600 from being blown out by hot air flowing circularly.
Preferably, the length of the circulating pipeline 100 between the heating furnace 200 and the test area 500 is shorter than the length of the circulating pipeline 100 between the test area 500 and the heating furnace 200 along the flowing direction of the air in the circulating pipeline 100, that is, the path of the hot air flowing out of the air outlet of the heating furnace 200 entering the fire-fighting smoke exhaust fan is smaller than the path of the hot air flowing out of the fire-fighting smoke exhaust fan entering the heating furnace 200 again for heating.
According to the fire-fighting smoke exhaust fan high-temperature resistance performance test device, the problem of air heating is effectively solved by heating through the burner, the heating furnace is heated by using fuel gas, the heating efficiency is more than ten times higher than that of electric heating, the effect of being ready to use without waiting is achieved, and the experiment waiting time is effectively reduced. Simultaneously, the burner is sunken in the department, hidden design for the burner is not blown out by endless hot-air, and the process of the test is more stable, and abrupt temperature drop can not appear and lead to the experiment failure. The design of circulation pipeline is favorable to the recycling of hot-air, reduces thermal loss through the heat preservation, makes the hot-air that gets back to the heating furnace again through the pipeline circulation still have higher temperature, only needs a small amount of heating, can reach required temperature, has practiced thrift the energy, reduces energy such as experimental required gas, reduces use cost.
Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a low carbon emission fire control smoke exhaust fan high temperature resistance test device which characterized in that includes:
a circulation line (100);
the heating furnace (200) is arranged on the circulating pipeline (100), an air inlet and an air outlet are respectively arranged on two opposite surfaces of the heating furnace (200), and the circulating pipeline (100) is respectively connected with the air inlet and the air outlet;
the test area (500) is arranged on the circulating pipeline (100) and is used for installing a fire-fighting smoke exhaust fan;
the burners (600) are arranged on the inner wall of the heating furnace (200), and the burners (600) are arranged on the same side of the inner wall of the heating furnace (200);
the thermocouple (400) is arranged on the circulating pipeline (100), the thermocouple (400) is close to the test area (500), and the thermocouple (400) is used for measuring the temperature of hot air entering the fire-fighting smoke exhaust fan;
and the mixed flow plate (300) is arranged on the circulating pipeline (100), and the mixed flow plate (300) is close to the air outlet of the heating furnace (200), so that the hot air flowing out of the air outlet moves for multiple times on the way of passing through the mixed flow plate (300).
2. The test device for the high-temperature resistance of the low-carbon-emission fire-fighting smoke exhaust fan according to claim 1, wherein the section of the circulation pipeline (100) between the heating furnace (200) and the test area (500) is a first pipeline, the section of the circulation pipeline (100) between the test area (500) and the heating furnace (200) is a second pipeline, and the length of the first pipeline is smaller than that of the second pipeline.
3. The test device for the high-temperature resistance of the low-carbon-emission fire-fighting smoke exhaust fan according to claim 1, wherein the mixed flow plate (300) comprises a plurality of porous steel plates (310), the plurality of porous steel plates (310) are sequentially connected through connecting rods (320), and the distribution density of the round holes (330) on each porous steel plate (310) is uneven.
4. The low-carbon emission fire-fighting smoke exhaust fan high-temperature resistance test device according to claim 1, wherein the circulation pipeline (100) comprises an inner pipeline and a heat insulation layer, the heat insulation layer is made of heat insulation materials, the heat insulation layer is arranged on the outer side wall of the inner pipeline, and the inner pipeline is a steel pipe.
5. The device for testing the high-temperature resistance of the low-carbon-emission fire-fighting smoke exhaust fan as claimed in claim 4, wherein a plurality of grooves are formed in the same side of the inner wall of the heating furnace (200), and the burner (600) is mounted at the bottom of each groove.
6. The low-carbon-emission fire-fighting smoke exhaust fan high-temperature resistance test device according to claim 1, wherein flanges or reducing pipes are arranged at ports, close to two sides of the test area (500), of the circulating pipeline (100) so as to connect the fire-fighting smoke exhaust fan with the circulating pipeline (100).
7. The device for testing the high-temperature resistance of the low-carbon-emission fire-fighting smoke exhaust fan according to claim 1, wherein six thermocouples (400) are arranged on the circulating pipeline (100).
8. The device for testing the high-temperature resistance of the low-carbon-emission fire-fighting smoke exhaust fan according to claim 1, wherein the heating furnace (200) is of a hollow cuboid structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220316715.8U CN217586324U (en) | 2022-02-17 | 2022-02-17 | Low-carbon-emission fire-fighting smoke exhaust fan high-temperature resistance performance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220316715.8U CN217586324U (en) | 2022-02-17 | 2022-02-17 | Low-carbon-emission fire-fighting smoke exhaust fan high-temperature resistance performance test device |
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| Publication Number | Publication Date |
|---|---|
| CN217586324U true CN217586324U (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220316715.8U Active CN217586324U (en) | 2022-02-17 | 2022-02-17 | Low-carbon-emission fire-fighting smoke exhaust fan high-temperature resistance performance test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217586324U (en) |
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2022
- 2022-02-17 CN CN202220316715.8U patent/CN217586324U/en active Active
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