CN220556518U - Steel box girder ventilation alarm device - Google Patents
Steel box girder ventilation alarm device Download PDFInfo
- Publication number
- CN220556518U CN220556518U CN202322204659.6U CN202322204659U CN220556518U CN 220556518 U CN220556518 U CN 220556518U CN 202322204659 U CN202322204659 U CN 202322204659U CN 220556518 U CN220556518 U CN 220556518U
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- CN
- China
- Prior art keywords
- box girder
- steel box
- alarm device
- gas
- detection probe
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 38
- 239000010959 steel Substances 0.000 title claims abstract description 38
- 238000009423 ventilation Methods 0.000 title claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 68
- 239000000523 sample Substances 0.000 claims abstract description 59
- 238000001514 detection method Methods 0.000 claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000005070 sampling Methods 0.000 claims abstract description 17
- 238000010276 construction Methods 0.000 claims description 23
- 239000000779 smoke Substances 0.000 claims description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 239000002341 toxic gas Substances 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a ventilation alarm device for a steel box girder, which comprises a controller, a data transceiver, a plurality of gas detection probes and a plurality of gas sampling mechanisms. The data transceiver is respectively connected with the controller, the plurality of gas detection probes, the alarm device, the ventilation device and the plurality of gas sampling mechanisms; the gas sampling mechanisms are arranged in the steel box girder, and a plurality of gas detection probes are arranged in each gas sampling mechanism. The utility model has simple structure and convenient use, and when the harmful and toxic gas reaches the concentration which is harmful to human body, the utility model gives an alarm to inform the operator and opens ventilation along with the alarm, thereby ensuring the operation safety of the operator.
Description
Technical Field
The utility model relates to the technical field of steel box girder construction operation space monitoring, in particular to a ventilation alarm device for a steel box girder.
Background
The steel box girder, also called as steel plate box girder, is a common structural form of a large-span bridge, is generally used on a bridge with a large span, and is called as a steel box girder because of the appearance of a box. The steel box girder 1 is provided with a ventilation opening 12 at one side of the bridge deck, the ventilation opening 12 is provided with a ventilation device 2 (shown in fig. 1), specifically, as shown in fig. 2, the steel box girder 1 is formed by sequentially splicing and welding a plurality of blocks 13, wherein at least one block 13 is provided with the ventilation opening 12 at one side of the bridge deck, and a construction operation space 11 is positioned in the steel box girder 1. In the construction process of the on-site steel box girder, an operator adopts CO at the joint between the construction operation space 11 with a small space and the two adjacent blocks 13 2 Welding is carried out by the two-step welding, and toxic and harmful gas can be generated in the welding process.
CO in general 2 Harmful substances generated during gas shielded welding can be classified into two types: one type is a harmful gas, mainly carbon dioxide (CO 2 ) Carbon monoxide (CO), hydrogen dioxide (NO 2) and ozone (O) 3 ) The method comprises the steps of carrying out a first treatment on the surface of the The other is smoke dust, the main component of which is ferric oxide (Fe 20 3 ) Silicon dioxide (SiO) 2 ) And manganese oxide (MnO), etc., which negatively affect the health of the operator. Thus, there is a need for a ventilation alarm device.
Disclosure of Invention
The utility model aims to provide a steel box girder ventilation alarm device for effectively detecting harmful substances.
In order to solve the problems, the ventilation alarm device for the steel box girder is characterized in that: the device comprises a controller, a data transceiver, a plurality of gas detection probes and a plurality of gas sampling mechanisms; the data transceiver is respectively connected with the controller, the plurality of gas detection probes, the alarm device, the ventilation device and the plurality of gas sampling mechanisms; the gas sampling mechanisms are arranged in the steel box girder, and a plurality of gas detection probes are arranged in each gas sampling mechanism.
Each gas production mechanism comprises a base arranged at the bottom of a construction operation space in the steel box girder, a support rod arranged on the base and a collection cylinder arranged on the support rod; and the collection cylinder is respectively provided with a plurality of gas detection probes and exhaust fans, and the exhaust fans are connected with the data transceiver.
The gas detection probe consists of a harmful gas content detection probe and a smoke content detection probe; the harmful gas content detection probe and the smoke content detection probe are respectively connected with the controller through the data transceiver.
The harmful gas content detection probe comprises a hydrogen dioxide content detection probe, a carbon monoxide content detection probe, a carbon dioxide content detection probe and an ozone content detection probe.
The exhaust fan is arranged at one end of the collection cylinder.
The collection cylinders are arranged at different positions in the construction operation space.
The types of the harmful gas content detection probes assembled in each collection cylinder are different, and the number of the collection cylinders assembled with the harmful gas content detection probes of different types is at least two.
The alarm device is a mobile phone of an operator.
The support rod is in screwed connection with the collection cylinder and the base.
The supporting rod is a telescopic rod.
Compared with the prior art, the utility model has the following advantages:
1. according to the utility model, the gas detection probe is arranged in the construction operation space in the steel box girder, and the alarm device and the controller are used for detecting the gas in the limited construction operation space, so that when the harmful and toxic gas in the construction operation space reaches the concentration which is harmful to the human body, an alarm is sent out to inform an operator, and ventilation is opened accordingly, thereby ensuring the operation safety of the operator.
2. According to the utility model, the air sampling mechanism is arranged, so that the air in the construction operation space can be better sampled, and the data detected by the harmful gas content detection probe and the smoke dust content detection probe are more accurate.
3. The utility model has simple structure and convenient use.
Drawings
The following describes the embodiments of the present utility model in further detail with reference to the drawings.
FIG. 1 is a schematic diagram of the arrangement of a gas production mechanism in the present utility model.
Fig. 2 is a side view of the steel box girder of the present utility model.
Fig. 3 is a schematic structural diagram of the gas production mechanism in the present utility model.
Fig. 4 is a circuit signal control block diagram of the present utility model.
In the figure: 1-a steel box girder; 11-construction operation space; 12-a ventilation opening; 13-block; 2-a ventilation device; 3-a controller; 4-a data transceiver; 5-an alarm device; 6, a gas detection probe; 61-a harmful gas content detection probe; 62-smoke content detection probe; 7-a gas collection mechanism; 71-a collection cylinder; 72-an exhaust fan; 73-supporting rods; 74-base.
Detailed Description
As shown in fig. 1 to 4, the ventilation alarm device for the steel box girder comprises a controller 3, a data transceiver 4, a plurality of gas detection probes 6 and a plurality of gas sampling mechanisms 7. The data transceiver 4 is respectively connected with the controller 3, a plurality of gas detection probes 6, an alarm device 5, the ventilation device 2 and a plurality of gas sampling mechanisms 7; the gas sampling mechanisms 7 are arranged in the steel box girder 1, and a plurality of gas detection probes 6 are arranged in each gas sampling mechanism 7.
Wherein: the gas production mechanism 7 comprises a base 74 arranged at the bottom of the construction operation space 11 in the steel box girder 1, a supporting rod 73 arranged on the base 74 and a collection cylinder 71 arranged on the supporting rod 73; a plurality of gas detection probes 6 and exhaust fans 72 are respectively arranged in the collection cylinder 71, and the exhaust fans 72 are connected with the data transceiver 4.
The gas detection probe 6 is composed of a harmful gas content detection probe 61 and a smoke content detection probe 62; the harmful gas content detection probe 61 and the smoke content detection probe 62 are respectively connected with the controller 3 through the data transceiver 4.
The harmful gas content detection probe 61 includes a hydrogen dioxide content detection probe, a carbon monoxide content detection probe, a carbon dioxide content detection probe, and an ozone content detection probe.
The suction fan 72 is provided at one end of the collection cylinder 71.
The collection tube 71 is disposed at different locations within the construction work space 11.
The types of the harmful gas content-detecting probes 61 mounted in each of the collecting cylinders 71 are different, and there are at least two sets of collecting cylinders 71 mounted with the different types of the harmful gas content-detecting probes 61.
The alarm device 5 is a mobile phone of an operator.
The supporting rod 73 is screwed with the collecting cylinder 71 and the base 74.
In order to realize the adjustment of the space height of the collecting cylinder 71, the supporting rod 73 is a telescopic rod.
The steel box girder 1 is formed by sequentially splicing and welding a plurality of blocks 13, at least one block 13 is provided with a ventilation opening 12 at one side of a bridge deck, and the ventilation opening 12 is provided with a ventilation device 2; the construction space 11 is arranged in the steel box girder 1 and is used for performing welding operation on the joint between two adjacent blocks 13.
The utility model is suitable for air monitoring of the construction operation space 11 of the steel box girder 1, and when the harmful gas in the construction operation space 11 reaches the concentration which is harmful to human bodies, an alarm is given out, and an operator is informed of leaving, so that the operation safety and the physical health of the operator are ensured.
The controller 3 is provided by soft information technology limited company in Liaoning, and the main technical indexes are as follows:
the installation mode is wall-mounted installation in non-explosion-proof occasions;
working voltage is main power, AC220V 15%,50Hz 1%
Standby power 30VDC/2000mAh
The power consumption is less than or equal to 10 and 10W
The working temperature is-20 to +55C
Working humidity is less than or equal to 93% RH
Capacity +.15
Input signal 3-wire or 2-wire 4-2mA
The connecting cable is more than or equal to VR 3 x 1.5mm (with sheath cable)
The signal transmission distance is less than or equal to 1Km
Alarm mode, sound and light alarm
Sound alarm, namely fault alarm and concentration alarm;
light alarm, namely, displaying the system state (alarm and fault) and the power supply state (main power failure, standby power failure and charging failure) through the light emitting diode
One of the two groups of relay outputs (capacity: 5A/250VAC or 5A/30 VDC) is normally open and normally closed, and the other group of relay outputs is normally open and normally closed;
RS485 bus communication interface (optional)
Code and meaning that "EO" display panel and output panel do not communicate
"E1" current address detector sensor failure
'E2' current address detector communication fault
'E3' current address detector memory chip fault
"E6" clock chip failure
"E7" memory chip failure
Loop short circuit of E8 connection detector
Weight 4kg. External dimension of 347mmX250mmX84mm
Working principle:
when the harmful gas stored in the controller 3 reaches the concentration range value which is harmful to human bodies and the smoke dust reaches the concentration range value which is harmful to human bodies, and an operator performs welding operation on the spliced part between two adjacent blocks 13 in the construction operation space 11, the harmful gas content detection probe 61 detects the content of the harmful gas in the construction operation space 11 in real time and feeds back the content to the controller 3 through the data transceiver 4, and the smoke dust content detection probe 62 detects the content of the smoke dust in the construction operation space 11 in real time and feeds back the content to the controller 3 through the data transceiver 4. When the content of the detected harmful gas and/or the content of the smoke reaches a concentration range value which is harmful to human bodies, the controller 3 opens the alarm device 5 through the data transceiver 4 to remind an operator to leave the construction work space 11, and simultaneously, the controller 3 opens the ventilation device 2 through the data transceiver 4 to ventilate the construction work space 11.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A steel case roof beam ventilation alarm device, its characterized in that: the device comprises a controller (3), a data transceiver (4), a plurality of gas detection probes (6) and a plurality of gas sampling mechanisms (7); the data transceiver (4) is respectively connected with the controller (3), the plurality of gas detection probes (6), the alarm device (5), the ventilation device (2) and the plurality of gas sampling mechanisms (7); the gas sampling mechanisms (7) are arranged in the steel box girder (1), and a plurality of gas detection probes (6) are arranged in each gas sampling mechanism (7).
2. A steel box girder ventilation alarm device as claimed in claim 1, wherein: each gas production mechanism (7) comprises a base (74) arranged at the bottom of a construction operation space (11) in the steel box girder (1), a support rod (73) arranged on the base (74) and a collection cylinder (71) arranged on the support rod (73); a plurality of gas detection probes (6) and exhaust fans (72) are respectively arranged in the collection cylinder (71), and the exhaust fans (72) are connected with the data receiving and transmitting device (4).
3. A steel box girder ventilation alarm device as claimed in claim 2, wherein: the gas detection probe (6) consists of a harmful gas content detection probe (61) and a smoke content detection probe (62); the harmful gas content detection probe (61) and the smoke content detection probe (62) are respectively connected with the controller (3) through the data transceiver (4).
4. A steel box girder ventilation alarm device as claimed in claim 3, wherein: the harmful gas content detection probe (61) comprises a hydrogen dioxide content detection probe, a carbon monoxide content detection probe, a carbon dioxide content detection probe and an ozone content detection probe.
5. A steel box girder ventilation alarm device as claimed in claim 2, wherein: the exhaust fan (72) is arranged at one end of the collection cylinder (71).
6. A steel box girder ventilation alarm device as claimed in claim 2, wherein: the collection cylinders (71) are arranged at different positions in the construction work space (11).
7. A steel box girder ventilation alarm device as claimed in claim 6, wherein: the types of the harmful gas content detection probes (61) mounted in each of the collection tubes (71) are different, and the number of the collection tubes (71) mounted with the different types of the harmful gas content detection probes (61) is at least two.
8. A steel box girder ventilation alarm device as claimed in claim 1, wherein: the alarm device (5) is a mobile phone of an operator.
9. A steel box girder ventilation alarm device as claimed in claim 2, wherein: the support rod (73) is in screwed connection with the collection cylinder (71) and the base (74).
10. A steel box girder ventilation alarm device as claimed in claim 2, wherein: the supporting rod (73) is a telescopic rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322204659.6U CN220556518U (en) | 2023-08-16 | 2023-08-16 | Steel box girder ventilation alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322204659.6U CN220556518U (en) | 2023-08-16 | 2023-08-16 | Steel box girder ventilation alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220556518U true CN220556518U (en) | 2024-03-05 |
Family
ID=90051657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322204659.6U Active CN220556518U (en) | 2023-08-16 | 2023-08-16 | Steel box girder ventilation alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220556518U (en) |
-
2023
- 2023-08-16 CN CN202322204659.6U patent/CN220556518U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |