Air-breathing smoke-sensing fire detector with explosion-proof function

Abstract

The utility model discloses an air-breathing smoke-sensing fire detector with an explosion-proof function, which relates to the field of smoke-sensing fire detectors and comprises an explosion-proof shell, an air-breathing sampling system module, a smoke detection module, a control unit module and an alarm module. An air suction sampling system module, a smoke detection module, a control unit module and an alarm module are arranged in the explosion-proof shell, the explosion-proof shell can be a stainless steel explosion-proof shell, the explosion-proof protection grade of the explosion-proof shell is IP66, and window glass is arranged on an upper cover of the explosion-proof shell. The pipeline cleaning system is stable, reliable and unique, long-time reliable operation is guaranteed, installation is flexible, a single pipe can be connected with a 120-meter pipeline at most, the pipeline cleaning system is intelligent and has automatic calibration and self-diagnosis functions, a shell does not need to be opened during debugging of wireless debugging equipment, and the pipeline cleaning system is convenient to operate and maintain. And debugging is directly carried out through Bluetooth wireless connection.

Description

Technical Field

[0001] This utility model relates to the field of smoke detectors, specifically an aspirating smoke detector with explosion-proof function. Background Technology

[0002] A smoke detector is a fire detector that responds to the smoke parameters around a narrow linear strip within a warning range. Its main difference from the two point-type smoke detectors mentioned earlier is that the linear smoke detector separates the beam emitter and photoelectric receiver into two independent parts, which are installed at opposite locations and connected by a beam. Infrared beam smoke detectors are further divided into through-beam and reflective types.

[0003] In industrial sectors such as petroleum, chemical, and mining, there are environments with large amounts of flammable and explosive gases or dust. These locations have special safety requirements for fire detection equipment. Traditional point-type fire detectors cannot effectively cover large areas, their electrical contacts are prone to sparks posing a risk of ignition, their response sensitivity is low, and they are difficult to provide early warnings. Conventional aspirating detectors do not have explosion-proof performance and are easily blocked by dust in explosive environments.

[0004] Therefore, those skilled in the art have provided an aspirating smoke detector with explosion-proof function to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide an explosion-proof aspirating smoke detector to address the problems mentioned in the background art, such as the presence of large amounts of flammable and explosive gases or dust in industrial fields like petroleum, chemical, and mining. These locations have special safety requirements for fire detection equipment. Traditional point-type fire detectors cannot effectively cover large areas, their electrical contacts are prone to sparking and ignition risks, their response sensitivity is low, making early warning difficult, and conventional aspirating detectors lack explosion-proof performance and are easily clogged by dust in explosive environments.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The utility model relates to an aspirating smoke fire detector with explosion -proof function, including explosion -proof shell, aspirating sampling system module, smoke detection module, control unit module and alarm module, the explosion -proof shell is equipped with aspirating sampling system module, smoke detection module, control unit module and alarm module in, the explosion -proof shell can select to adopt stainless steel explosion -proof shell, the explosion -proof protection level of explosion -proof shell is IP66, the upper cover of explosion -proof shell is equipped with window glass, the window glass can adopt toughened glass, the aspirating sampling system module selects a plurality of sampling pipe networks, the outer wall of explosion -proof shell is equipped with external power supply interface, one end of external power supply interface is fixedly connected with external power supply, the smoke detection module is equipped with detection module in, the alarm module is equipped with audible -visual alarm and wireless alarm in, the control unit module is equipped with central controller in, the control unit module can adopt hardware watchdog and software double check mechanism, the control unit module is equipped with self -diagnostic instrument in.

[0008] As a preferred embodiment of the utility model: the explosion -proof shell can select 304 stainless steel, the thickness can select 8mm, can adopt the plane flange explosion -proof joint surface, and the plane flann explosion -proof joint surface is less than 0.15mm.

[0009] As a preferred embodiment of the utility model: the sampling pipe network can select special support and fixing piece, and the sampling pipe network can select to install on the ceiling and wall.

[0010] As a preferred embodiment of the utility model: the connecting portion of sampling pipe network is equipped with sealing ring, one end of sampling pipe network is fixedly connected with aspirating pump through pipeline, and the connecting portion of sampling pipe network and aspirating pump is equipped with sealing glue and sealing ring.

[0011] As a preferred embodiment of the utility model: the outer wall of sampling pipe network is equipped with sampling hole, and the direction and position of sampling hole can be adapted to install on the ceiling and wall.

[0012] As a preferred embodiment of the utility model: the explosion -proof level in the gas environment of explosion -proof shell is higher than Exd IIB T4 Gb, and the detection sensitivity of the detection module in the smoke detection module is higher than 0.0001% obs / m.

[0013] As a preferred embodiment of the utility model:

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The utility model discloses a kind of aspirating smoke fire detectors with explosion-proof function, provide a reliable safety, detection sensitivity, long maintenance period explosion-proof aspirating smoke fire detector, specific target includes gas environment explosion-proof grade reaches Exd IIB T4 Gb, detection sensitivity reaches 0.0001% obs / m, sampling pipe laying length can reach 120 meters, maintenance period is not less than 2 years, high security dual explosion-proof design, avoid igniting surrounding explosive mixture, detection accurate multivariate analysis and detection direct 0.001% obs / m level, stable and reliable unique pipeline cleaning system ensures long time reliable operation, installation flexible single pipe longest can be connected 120 meters pipeline, intelligentization has automatic calibration and self-diagnosis function, wireless debugging equipment debugging does not need to open shell, directly through bluetooth wireless connection debugging, sampling pipe laying length can reach 120 meters, maintenance period can be higher than 2 years, service life is longer. BRIEF DESCRIPTION OF DRAWINGS

[0016] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Fig. 1 It is a kind of aspirating smoke fire detector with explosion-proof function's aspirating sampling system working principle's structural diagram;

[0018] Fig. 2 It is a kind of explosion-proof shell in aspirating smoke fire detector with explosion-proof function's structural diagram; DETAILED DESCRIPTION

[0019] Please refer to Figs. 1-2The utility model discloses an aspirating smoke fire detector with explosion -proof function, including explosion -proof shell, air -intaking sampling system module, smoke detection module, control unit module and alarm module, be equipped with air -intaking sampling system module, smoke detection module, control unit module and alarm module in explosion -proof shell, first to the place layout that needs monitoring, the laying path of planning sampling pipe network, use special support and fixed part and install sampling pipe network firmly on the ceiling or wall, ensure that the orientation and position of sampling hole meet the design requirement, and the connecting part of sampling pipe network is sealed well, prevent air leakage from affecting sampling effect, explosion -proof shell can select to adopt stainless steel explosion -proof shell, and the explosion -proof protection level of explosion -proof shell is IP66, and the upper cover of explosion -proof shell is equipped with window glass, and the window glass can adopt tempered glass, and air -intaking sampling system module selects several sampling pipe networks, and the outer wall of explosion -proof shell is equipped with external power supply interface, and one end of external power supply interface is fixedly connected with external power supply, and explosion -proof shell is fixed in the appropriate position, and air -intaking pump is connected with sampling pipe network through pipeline, when connecting, ensure that the pipeline is connected closely, and sealing treatment is carried out using sealing glue or sealing ring, prevent gas leakage, then correct line connection is carried out, check whether the installation of each part is firm, and whether line connection is correct and reliable, and the detection module is equipped in smoke detection module, and the sound -light alarm and wireless alarm are equipped in alarm module, and the central controller is equipped in control unit module, and the control unit module can adopt hardware watchdog and software double check mechanism, and the self -diagnostic instrument is equipped in control unit module.

[0020] The explosion -proof shell can select 304 stainless steel, and the thickness can select 8mm, and the plane flange explosion -proof joint surface can be used, and the interval of the plane flange explosion -proof joint surface is less than 0.15mm. The external power supply is connected through the external power supply interface, the detector is powered on for testing, whether the air -intaking pump is normal, whether the smoke detection module can accurately detect the smoke, whether the data processing unit can correctly process the data, whether the alarm device can normally send the sound and light alarm signal and the wireless alarm information, the sampling pipe network can select the special support and the fixed part, and the sampling pipe network can be installed on the ceiling and the wall. The connecting part of the sampling pipe network is provided with a sealing ring, one end of the sampling pipe network is fixedly connected with the air -intaking pump through a pipeline, and the connecting part of the sampling pipe network and the air -intaking pump is provided with sealing glue and a sealing ring. The single pipe can be connected with the pipeline of 120 meters at most, and the intelligent device has the functions of automatic calibration and self -diagnosis. The wireless debugging device is debugged without opening the shell, and is directly debugged through the Bluetooth wireless connection. The length of the sampling pipe can reach 120 meters, and the maintenance period can be more than 2 years. The outer wall of the sampling pipe network is provided with a sampling hole, and the orientation and position of the sampling hole can be matched with the ceiling and the wall. The explosion -proof level of the explosion -proof shell in the gas environment is higher than Exd IIB T4 Gb, and the detection sensitivity of the internal detection module of the smoke detection module is higher than 0.0001% obs / m.

[0021] The working principle of the utility model is: first, the place to be monitored is laid out, the laying path of the sampling pipe network is planned, the sampling pipe network is firmly installed on the ceiling or wall by using special support and fixing part, the orientation and position of the sampling hole are ensured to meet the design requirements, the connecting part of the sampling pipe network is well sealed to prevent air leakage from affecting the sampling effect, the explosion-proof shell is fixed at a suitable position, the air suction pump is connected with the sampling pipe network through the pipeline, when connected, the pipeline connection is ensured to be tight, sealing treatment is carried out by using sealing glue or sealing ring to prevent gas leakage, then correct line connection is carried out, whether the installation of each part is firm, whether the line connection is correct and reliable are checked, then the external power supply is connected through the external power supply interface, the detector is tested by electrifying, whether the air suction pump is normally operated, whether the smoke detection module can accurately detect smoke, whether the data processing unit can correctly process data, whether the alarm device can normally send out sound and light alarm signals and wireless alarm information are checked, the longest single pipe can be connected with 120m pipeline, the intelligentization has the functions of automatic calibration and self-diagnosis, wireless debugging equipment does not need to open the shell for debugging, is directly debugged through Bluetooth wireless connection, the laying length of the sampling pipe can reach 120m, the maintenance period can be higher than 2 years, and the service life is longer.

[0022] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An explosion-proof aspirating smoke detector, comprising an explosion-proof housing, an aspirating sampling system module, a smoke detection module, a control unit module, and an alarm module, characterized in that, The explosion-proof enclosure houses an air intake sampling system module, a smoke detection module, a control unit module, and an alarm module. The explosion-proof enclosure can be made of stainless steel and has an IP66 explosion-proof rating. The top cover of the enclosure has a viewing window, which can be made of tempered glass. The air intake sampling system module has several sampling pipe networks. The outer wall of the explosion-proof enclosure has an external power interface, one end of which is fixedly connected to an external power source. The smoke detection module contains a detection module. The alarm module contains an audible and visual alarm and a wireless alarm. The control unit module contains a central controller and can employ a hardware watchdog and software dual verification mechanism. The control unit module also includes a self-diagnostic device.

2. The aspirating smoke detector with explosion-proof function according to claim 1, characterized in that, The explosion-proof housing can be made of 304 stainless steel, with a thickness of 8mm. It can use a flat flange explosion-proof joint surface, and the gap between the flat flange explosion-proof joint surfaces is less than 0.15mm.

3. The aspirating smoke detector with explosion-proof function according to claim 1, characterized in that, The sampling pipeline network can be equipped with special brackets and fasteners, and can be installed on the ceiling or wall.

4. The aspirating smoke detector with explosion-proof function according to claim 1, characterized in that, The sampling pipeline is equipped with a sealing ring at the connection point. One end of the sampling pipeline is fixedly connected to the suction pump via a pipe. The connection point between the sampling pipeline and the suction pump is equipped with sealant and a sealing ring.

5. A suction-type smoke detector with explosion-proof function according to claim 1, characterized in that, The outer wall of the sampling pipeline is provided with sampling holes, and the orientation and position of the sampling holes can be adapted to the ceiling and wall for installation.

6. A smoke detector with explosion-proof function according to claim 1, characterized in that, The explosion-proof enclosure has an explosion-proof rating higher than Exd IIB T4 Gb in a gaseous environment, and the detection sensitivity of the internal detection module of the smoke detection module is higher than 0.0001% obs / m.

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