CN209947047U - Explosion-proof intrusion alarm detection device of underground utility tunnel natural gas cabin - Google Patents
Explosion-proof intrusion alarm detection device of underground utility tunnel natural gas cabin Download PDFInfo
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- CN209947047U CN209947047U CN201920344205.XU CN201920344205U CN209947047U CN 209947047 U CN209947047 U CN 209947047U CN 201920344205 U CN201920344205 U CN 201920344205U CN 209947047 U CN209947047 U CN 209947047U
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Abstract
The utility model provides an explosion-proof intrusion alarm detection device of a natural gas cabin of an underground comprehensive pipe gallery, which comprises an infrared correlation detector, wherein the infrared correlation detector consists of a transmitter and a receiver which are mutually matched, and the outsides of the transmitter and the receiver are respectively provided with an infrared correlation explosion-proof box; the transmitter and the receiver are both connected with a main control unit, and the main control unit is connected with an alarm device. And the transmitter and the receiver of the infrared correlation detector are respectively arranged at two ends of a protection area of the natural gas cabin of the underground comprehensive pipe gallery. The utility model provides a device has overcome prior art not enough, through multiple compound explosion-proof structure design, makes intrusion alert detection device have reliable explosion-proof function, is particularly useful for in this kind of space that has explosion-proof requirement in utility tunnel natural gas line cabin. The device has simple structure, convenient use and reliable performance.
Description
Technical Field
The utility model relates to an alarm device especially relates to an explosion-proof intrusion alert detection device in underground utility tunnel natural gas cabin.
Background
The city underground pipe gallery is also called as underground pipe gallery, integrates two or more than two municipal pipelines of electric power, communication, gas, water supply, reclaimed water and the like, is generally built in the city underground and is used for laying municipal public pipelines, which comprises a trunk underground pipe gallery, a branch underground pipe gallery and a cable trench, is intensively laid in the same building according to the planning requirement to implement municipal public tunnel space of unified design, construction and management, and also has the functions of drainage, illumination, communication, alarm and the like, the city underground pipe gallery generally adopts an intensive design concept to effectively utilize the space under the road, saves underground space resources, also avoids the influence on the road passage and the surrounding environment caused by respectively excavating the professional pipelines at irregular time, thoroughly solves the problem of 'zipper paths' and generates obvious social and environmental benefits, the urban pollution is reduced, and due energy is provided for urban operation, so that the high efficiency of the urban operation is ensured.
Common alarm objects of underground pipe galleries include: harmful gas concentration, environment temperature, humidity, ventilation, fire control, entrance guard, intrusion detection, video monitoring, night patrol and the like in the underground pipe gallery. The utility model discloses a safety protection system for underground pipe gallery, including the very important system of preventing invading, this is the indispensable partly in the middle of the underground pipe gallery safety protection system construction process, and only like this, just can prevent whole underground pipe gallery under the state that does not have any artificial control, can not invaded by other external personnel, carries out effectual control through burglar alarm equipment.
City gas generally includes natural gas, liquefied petroleum gas, and artificial gas. Along with the development of economy, natural gas gradually becomes the mainstream of town gas, and when the natural gas pipeline was brought into the utility tunnel, the intrusion prevention system just need set up explosion-proof type intrusion alarm detection device in underground utility tunnel's natural gas pipeline cabin. However, there is no prior art in which such a natural gas pipeline is incorporated into the alarm detection device of the utility tunnel.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: after the natural gas pipeline is brought into the comprehensive pipe gallery, how to realize the explosion-proof intrusion alarm detection of the natural gas cabin.
In order to solve the technical problem, the technical scheme of the utility model an explosion-proof intrusion alert detection device in underground utility tunnel natural gas cabin is provided, its characterized in that: the infrared correlation detector comprises a transmitter and a receiver which are matched with each other, and infrared correlation explosion-proof boxes are respectively arranged outside the transmitter and the receiver; the transmitter and the receiver are both connected with a main control unit, and the main control unit is connected with an alarm device.
Preferably, the transmitter and the receiver of the infrared correlation detector are respectively arranged at two ends of a protection area of the natural gas cabin of the underground comprehensive pipe gallery.
Preferably, the transmitter and the receiver both use an ABS plastic housing.
Preferably, the outer shell of the infrared correlation explosion-proof box is made of carbon steel with the thickness of not less than 4 mm.
More preferably, a protective sleeve is arranged outside the outer shell of the infrared correlation explosion-proof box.
Preferably, the back of the infrared correlation explosion-proof box is provided with a long waist hole convenient for field installation.
Preferably, the system also comprises a signal display lamp for displaying whether an abnormal signal exists, and the signal display lamp is connected with the main control unit.
Preferably, the alarm device is an audible and visual alarm.
Preferably, the transmitter and the receiver are both fixed in the infrared correlation explosion-proof box through fasteners.
More preferably, the fasteners are all 304 stainless steel fasteners.
The utility model discloses utilize sensor technology and electronic information technique, set up the intrusion alert detection device of an explosion-proof type in this kind of space that has the explosion-proof requirement in utility tunnel natural gas line cabin, survey and instruct illegal entering or try illegal entering utility tunnel natural gas cabin to set up the regional action of seting up defences, handle alarm information, send alarm information to electronic system or network to bring in cities and towns utility tunnel control and alarm system.
The utility model provides a device has overcome prior art not enough, through multiple compound explosion-proof structure design, makes intrusion alert detection device have reliable explosion-proof function, is particularly useful for in this kind of space that has explosion-proof requirement in utility tunnel natural gas line cabin. The device has simple structure, convenient use and reliable performance.
Drawings
FIG. 1 is a schematic diagram of an underground pipe gallery intrusion detection alarm system;
FIG. 2 is a schematic diagram of an explosion-proof intrusion alarm detection device according to the present embodiment;
FIG. 3 is a front view of the infrared correlation explosion-proof box;
FIG. 4 is a schematic view of a protective sleeve;
fig. 5 is a back view of the infrared correlation explosion-proof box.
Detailed Description
The present invention will be further described with reference to the following specific examples.
The anti-intrusion alarm system utilizes sensor technology and electronic information technology to detect and indicate the behavior of illegal entering or trying to illegally enter a fortification area, process alarm information and send the alarm information out of an electronic system or a network. The system is provided with intrusion alarm detection devices (intelligent infrared detectors or infrared correlation detectors) at the positions of each passageway, each feeding port, each ventilation opening, each distribution room, each equipment room passageway and the like of a pipe gallery to realize intrusion alarm monitoring, and the conventional industrial-grade intrusion alarm detection devices are generally configured in non-explosion-proof areas such as a comprehensive cabin, an electric power cabin and the like, but the natural gas cabin has explosion-proof requirements and needs to be configured with the explosion-proof intrusion alarm detection devices. During the pipe gallery is closed, a defense area alarm function is started, once illegal invasion exists, data are automatically identified and judged by a system and then transmitted to an alarm control device, a command and dispatching center simulates a section which can display the invasion on a display screen, the time and the place of the invasion are recorded in time, an alarm signal is sent out through alarm equipment, the alarm signal is transmitted to a comprehensive pipe gallery control center, and a video signal of an invasion area is automatically popped up on a large screen of the control center. The infrared anti-intrusion system has no special requirements on illumination in a monitoring area, and can work normally in a completely dark environment, so that the alarm video linkage function can be completely realized.
Fig. 1 is a structural diagram of an underground pipe gallery intrusion detection alarm system, wherein the underground pipe gallery intrusion detection alarm system consists of a control center, a control machine room and a field detection and control part. The intrusion detection system realizes the personnel intrusion detection and alarm functions of important positions, an intrusion alarm communication host is arranged in a machine room of a control center of the comprehensive pipe gallery, infrared intrusion detectors or active infrared correlation detectors are arranged at important positions such as personnel entrances and exits, a feed port, a mechanical/natural ventilation opening and the like, when the personnel intrusion condition is generated, infrared radiation level received by equipment changes, infrared beams between infrared correlation emission and infrared correlation reception are blocked, an alarm state is generated and uploaded, and alarm response is driven. The information center management software system of the utility tunnel monitoring and alarming system matched with the control center shows the intrusion alarm conditions of the gas cabin (provided with the explosion-proof intrusion alarm detection device) and the comprehensive cabin, the electric cabin (provided with the non-explosion-proof intrusion alarm detection device) and other cabin sections of the utility tunnel in two modes of the utility tunnel electronic map and the control center management software upper defense area map.
With reference to fig. 2, the explosion-proof intrusion alarm detection device of the natural gas cabin of the underground comprehensive pipe gallery is composed of an infrared correlation explosion-proof box 1 and an infrared correlation detector 2. The infrared correlation detector 1 is used by matching a transmitter and a receiver. Namely, the set of anti-explosion intrusion alarm detection device consists of 1 infrared correlation detector transmitter, 1 infrared correlation detector receiver and 2 infrared correlation anti-explosion boxes matched with the infrared correlation detector transmitter and the infrared correlation detector receiver.
The infrared correlation detector is arranged at the positions of each passageway, a feeding port, a vent, a distribution room, an equipment room passageway and the like, the transmitter and the receiver of the correlation are arranged at two ends of each passageway to form an infrared warning line, and when an intrusion behavior occurs, an alarm signal is transmitted to the host or a rear-end management system, so that the intrusion behavior detection of important passageways is realized.
The working principle of the infrared correlation detector is as follows:
a transmitter is arranged at the beginning end of the protection area, a receiver is arranged at the tail end of the protection area, and infrared beams emitted by the receiver are directly emitted to a receiving end. The received optical signal is converted into a switching value signal through an optoelectronic device at a receiver and processed by a discriminator. When the signal is confirmed to be normal, the internal display lamp is turned off, and the monitoring state is kept; when the infrared light beam is interrupted, the signal display lamp is lighted, and an alarm signal is output.
The infrared correlation detector has the following characteristics:
(1) the infrared signal transmissivity is improved by 50%, and the detector works more stably.
(2) The low-power consumption design of automatic dormancy, normal operating condition complete machine electric current reduces half, and concentrated power supply transmission distance can prolong one time, economizes the line, energy-conservation, environmental protection.
(3) By adopting the high-power infrared transmitting and receiving assembly, the detector has stronger capability of resisting environmental interference and protecting overcurrent and overvoltage.
(4) By adopting a DSP digital processing and AGC automatic gain control circuit, the detector can automatically adjust the transmitting power under severe environments such as wind, frost, rain, snow, fog and the like, automatically adapt to environmental changes and ensure all-weather zero false alarm of the detector.
(5) By adopting a secondary strong light filtering design, strong light interference in nature is thoroughly filtered out through twice infrared light filtering.
(6) The ABS shell ensures no deformation at high and low temperatures, ensures that the ABS shell is not easy to age in outdoor environment, and has super impact resistance and external force damage capability!
(7) The peripheral hardware is made of stainless steel, so that the appearance is attractive and durable, and the stainless steel cannot rust.
The transmission and communication principle of the system is as follows:
networking has become the main trend of utility tunnel security applications, and with the establishment of informatization security systems, each security terminal will also take more and more complicated tasks, and under such a requirement, networking becomes very important in the process of realizing these functions, even the only support.
(1) Networking: the underground comprehensive pipe gallery generally adopts a self-built network or a local area network of an optical fiber redundant looped network to realize a 1000M bandwidth network, combines an anti-intrusion alarm system and a video monitoring system to share a communication line, has a networking mode of interconnection and intercommunication, is flexible and simple, and does not need special wiring.
(2) Centralized hierarchical management: the underground pipe gallery alarm system is integrated and compatible with all security subsystem equipment, so that a unified management platform is formed, such as an intelligent three-technology detector, infrared correlation and the like. All alarm signals and state signals are connected into the subarea alarm host through the modules, the alarm host directly sends information to the control center of the comprehensive pipe gallery through the network, and workers can perform unified management and adjustment on the alarm signals by sitting in an office, such as alarm information management and remote control of the underground comprehensive pipe gallery, field monitoring picture display linkage after regional alarm and the like.
(3) Real-time management and control, timely response: the network/communication line of utility tunnel will report to the police and equipment information changes to and transmits to utility tunnel control center through net twine or optic fibre based on TCP/IP network standard's data package, can realize incessant real-time data acquisition and management and control in 24 hours. In case of emergency, the system can actively remind managers to implement treatment, so that the treatment efficiency is greatly improved, and the risk of loss expansion is reduced.
The main technical parameters when the infrared correlation detector is installed are as follows:
in this embodiment, adopt explosion-proof intrusion alert detection device in utility tunnel natural gas cabin, have following advantage:
(1) meet the explosion-proof requirement of the underground comprehensive pipe gallery gas cabin.
(2) The front-end detection intelligent three-technology infrared detector adopts microwave and passive infrared composite detection, only gives an alarm to the real human body action through fuzzy logic digital analysis, and the infrared correlation detection does not influence the normal indoor activities or work on the detection of the intrusion behaviors at the entrance and the exit.
(3) The defense deployment and withdrawal are flexible: automatic arming and disarming and remote arming and disarming functions.
(4) The anti-damage function: and when the intrusion detection alarm equipment receives the illegal damage, sending alarm information.
(5) The alarm linkage function is as follows: the alarm system can be linked with illumination, video (when intrusion alarm occurs, alarm information, alarm point maps and associated video images can be switched to an alarm interface foreground), and an audible and visual alarm.
In addition, the infrared correlation explosion-proof box has following characteristics:
(1) the explosive hazardous environment that is applicable to utility tunnel natural gas cabin: the method is suitable for dangerous places of explosive gas environments 1 and 2; the method is suitable for IIA, IIB and IIC level explosive gas environments; the method is suitable for combustible dust environments in 20, 21 and 22 areas; the method is suitable for environments with temperature groups of T1-T6;
(2) and (4) a composite explosion-proof structure.
The outer shell of the infrared correlation explosion-proof box 1 is formed by 4mm thick carbon steel seamless welding, the surface is subjected to powder electrostatic spraying after high-speed shot blasting, and the infrared correlation explosion-proof box is provided with a protective sleeve 11 (shown in figure 4), so that the infrared correlation explosion-proof box is attractive in appearance. The back is provided with 4 mounting long waist holes 12 (as shown in figure 5) for convenient field installation.
(3) The novel optimized operating mechanism has the advantages of compact and reasonable structure, strong universality, flexible and convenient operation and good hand feeling.
(4) All fasteners are made of 304 stainless steel which is resistant to strong corrosion.
(5) The wiring mode can be steel pipes, cables or explosion-proof hoses.
(6) Main technical parameters
Explosion-proof sign: exd IIC T6Gb
Rated voltage: AC220/380V
Non-standard voltage: 12V/24V/36V/127V/660V
Total switching current: 10A
Current of the branch switch: 1A
Protection grade: IP66
The thread specification is as follows: DN15-DN100/G1/2-G4 inches
Specification of the lead-in wire: the diameter is 6mm-80mm
Specification of outgoing lines: the diameter is 6mm-80 mm.
In the embodiment, by developing the information construction of the underground comprehensive pipe rack, various underground facilities are introduced into the pipe rack, and the guarantee function is provided for the construction of a digital city; the pipeline accident can be reduced, the pipeline leakage rate is reduced, repeated construction and the like are avoided, the reasonable planning and utilization of urban underground space are facilitated, and the damage to adjacent pipelines caused by error reconnaissance and construction is avoided; the construction of the underground comprehensive pipe gallery can improve the phenomena of scattered urban underground pipeline information management, incomplete pipeline information and non-uniform data standard, and can standardize and unify the management of the urban underground pipeline information, so that the dynamic management of underground pipe network data and the resource sharing to the maximum extent are realized.
The utility model discloses an explosion-proof intrusion alert detection device in utility tunnel natural gas cabin combines utility tunnel engineering to use for the background, satisfies the explosion-proof requirement in natural gas cabin, has successfully passed through the experiment, has ensured utility tunnel's safe operation, to promoting novel municipal infrastructure construction, improves city modernization management level, will play good demonstration effect.
The foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any way and in any way, and it should be understood that modifications and additions may be made by those skilled in the art without departing from the method of the present invention, and such modifications and additions are also considered to be within the scope of the present invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent embodiments of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides an explosion-proof intrusion alert detection device in underground utility tunnel natural gas cabin which characterized in that: the device comprises an infrared correlation detector (2), wherein the infrared correlation detector (2) consists of a transmitter and a receiver which are matched with each other, and infrared correlation explosion-proof boxes (1) are respectively arranged outside the transmitter and the receiver; the transmitter and the receiver are both connected with a main control unit, and the main control unit is connected with an alarm device.
2. An explosion-proof intrusion alarm detection device for an underground utility tunnel natural gas cabin according to claim 1, wherein: and the transmitter and the receiver of the infrared correlation detector (2) are respectively arranged at two ends of a protection area of the natural gas cabin of the underground comprehensive pipe gallery.
3. An explosion-proof intrusion alarm detection device for an underground utility tunnel natural gas cabin according to claim 1, wherein: and the transmitter and the receiver both adopt ABS plastic shells.
4. An explosion-proof intrusion alarm detection device for an underground utility tunnel natural gas cabin according to claim 1, wherein: the shell of the infrared correlation explosion-proof box (1) is made of carbon steel with the thickness not less than 4 mm.
5. An explosion-proof intrusion alarm detection device for an underground utility tunnel natural gas cabin according to claim 4, wherein: and a protective sleeve (11) is arranged outside the shell of the infrared correlation explosion-proof box (1).
6. An explosion-proof intrusion alarm detection device for an underground utility tunnel natural gas cabin according to claim 1, wherein: the back of the infrared correlation explosion-proof box (1) is provided with a long waist hole (12) convenient for field installation.
7. An explosion-proof intrusion alarm detection device for an underground utility tunnel natural gas cabin according to claim 1, wherein: the intelligent monitoring system also comprises a signal display lamp for displaying whether an abnormal signal exists or not, and the signal display lamp is connected with the main control unit.
8. An explosion-proof intrusion alarm detection device for an underground utility tunnel natural gas cabin according to claim 1, wherein: the alarm device is an audible and visual alarm.
9. An explosion-proof intrusion alarm detection device for an underground utility tunnel natural gas cabin according to claim 1, wherein: the transmitter and the receiver are both fixed in the infrared correlation explosion-proof box (1) through fasteners.
10. An explosion-proof intrusion alarm detection device for an underground utility tunnel natural gas cabin according to claim 9, wherein: the fasteners are all 304 stainless steel fasteners.
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| CN201920344205.XU CN209947047U (en) | 2019-03-18 | 2019-03-18 | Explosion-proof intrusion alarm detection device of underground utility tunnel natural gas cabin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113936438A (en) * | 2021-10-12 | 2022-01-14 | 国家电网有限公司 | Underground cable operating environment monitoring and early warning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113936438A (en) * | 2021-10-12 | 2022-01-14 | 国家电网有限公司 | Underground cable operating environment monitoring and early warning device |
| CN113936438B (en) * | 2021-10-12 | 2022-12-13 | 国家电网有限公司 | Underground cable operating environment monitoring and early warning device |
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