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Product DescriptionCompany Info.<>
- Model:
- WTH-A101
- Working current:
- 1A
- Working voltage:
- 24V
- Specifications:
- 340*250*132mm
- Applicable scope:
- cold storage
- Color:
- grey
- Volume ≧:
- 30DB
I. Product overview
Fires in rail transit, data centers, tobacco logistics warehouses, industrial plants, public buildings, enterprises, important places, large-scale venues and other places often become the focus of attention because they involve life safety, property safety and other issues.
At present, the commonly used fire alarm means include manual inspection, point smoke detector, linear beam, flame detector, image detector and so on. Among them, the manual inspection accuracy is high but the efficiency is low, and the inspector is easy to produce fatigue in the inspection process; the point-type smoke detector and linear beam are fixed sensitivity, which often requires a lot of smoke, and the fire will continue to burn for a certain time before sending out the alarm signal; the flame detector and image detector are often fire to a certain extent before they can identify and send out the alarm model.
The traditional fire alarm system can not perceive the potential danger in real time, dynamically and remotely, and can not meet the increasingly severe and complex fire warning needs. So is there a technology that can quickly eliminate potential fire threats and give people enough time to deal with them?
Waterwa-aspiratingsmoke detection early warning system sampling active detection technology, can send out fire warning signal 4 hours in advance; aspirating smoke detection early warning system uses LED broad spectrum high energy light source technology, using suction pump 7X24 hours uninterrupted air for effective analysis, the real smoke particles send out early warning signal, so that people have enough time to deal with the fire, at the same time is an important supplement to the current fire alarm system.
Industrial design, high performanceCPU, EMC three protection, surge protection, pulse burst, static electricity, network port, 485 serial port, power supply isolation, built-in watchdog, stable operation without downtime.
After comparing different technologies in the development stage, the Waterward series of very early smoke warning systems uses high-powerredLEDsas the detection light source. Its characteristics not only can meet the basic requirements of high brightness, long service life and the like for detecting light sources, but also are more sensitive to smoke particles with smaller size, so it can effectively detect smoke particles of all size.
Waterward's early warning system sends out early warning signals several hours in advance: most fires are not explosive, and the period from hidden danger to smoldering is5-60 minutes. From smoldering to open fire is 5-80 minutes, and once the loss of open fire is difficult to estimate. Take the fire caused by unextinguished cigarette butts as an example: 0:00 is the starting time of smoldering, and open fire occurs after 20 minutes. As time goes on, the loss increases gradually, the loss in the first 20 minutes is not obvious, but the fire loss increases in multiples after the open fire occurs.
System construction is simple and flexible:PCB main control board communication line/power line adopts spring terminal technology (safe, reliable and efficient), spring terminal advantages are as follows:
Fast connection speed: spring-type terminal connection speed is faster, only need to insert the wire into the terminal; and screw-type terminal need to use a screwdriver to tighten the screws one by one, the connection speed is slower;
Strong connection:The spring structure of the spring-loaded terminal can provide greater pressure, so that the wire can be more tightly fixed in the terminal, and the connection is stronger, while the tightening force of the screw-type terminal depends on the torque of the screw.
manufacturing technique
Product assembly:from raw materials to production, strictly in accordance withISO quality system standards to ensure product quality;
Function test:perform product function test including detection function, alarm function, display function, operation function, networking communication function, etc.;
Performance test:According to the requirements ofGB15631-2008 for special fire detectors, special test equipment is used to strictly test the sensitivity, alarm speed, detection range, three-proof spraying resistivity, shielding interference performance, LED detection light source parameters, photosensitive sensor and amplification circuit parameters, fan speed, etc. of the detection sensor;
Electromagnetic compatibility and electrical safety test:EMC (EMI, EMS) test, transient pulse test, conduction immunity test, insulation resistance test, leakage current test, lightning surge test and pulse burst test;
High and low temperature aging test:-40℃ to 70℃ high and low temperature test and full load aging test to ensure product quality.
Air flow test:adopt customized flowmeter to calibrate and test the air flow collection of equipment;
Other reliability tests:shock impact test, enclosure dust and water resistance test, power reverse connection protection test, port plug test.
III. Basic functions
1. Highsensitivity range:0.0001– 20%OBS/m;
2. High performance fan (>800Pa vacuum wind),35 dBlow noise, meetISO11690-1;
3. One-click environmentself-learning/airflow self-learningfunction;
4. Wide temperature and wide voltage:-20℃ to 70℃,plus or minus20% wide voltage adaptation, tomeet various conditions;
5. No metal devices in the detection cavity are more corrosion resistant, and thefull channel shielding is resistant to high intensity electromagnetic interference;
6. Level 4 alarm output:early warning, action alarm, fire alarm1, fire alarm 2;
7. Alarm time response speed: 5-120S;
8. Good compatibility:fully compatible withconventional mainstreamfire alarm systems.
IV. Product Features
1. AI technology:with fault self-diagnosis function;
2. Networking intensity:local area network/wide area network breakthrough quantity/distance/geographical limit;
3. Industrial protection:IP66 protection level, built-in hardware watchdog, strong anti-interference ability;
4. Original wireless Bluetooth APP link;
5.Up to90000 event records in the aircraft;
6. The device supports RS485/Bluetooth BLE/TCP, and the monitoring software supports multi-region and multi-address access;
7. The main control board has three anti-spraying, waterproof/dustproof/corrosion resistance;
8. Multiple protection: overload protection, overvoltage protection, short circuit protection, overcurrent protection, flame retardant enclosure, lightning protection, interference protection, electrostatic protection;
9. Dust suppression/compensation technology can effectively reduce the sensitivity of sensors to dust andreduce false positives;
10. Original high and low temperature/high humidity environment compensation technology: low temperature-40℃ temperature 120℃, 95% humidity is not affected
Environmental impact,can effectively reduce the interference of sensors, ensure the operation of equipment.
Food processing workshophasthe characteristics of moisture condensation, a large amount of steam, multi-fat cleaning agent and corrosive liquid. Traditional fire detectors cannot work normally and reliably in this environment.Although it is in a low temperatureenvironment,the air in the cold storage is very dry, and various flammable materials such as insulation materials and packaging materials in the cold storage are still potential fire sources. Conveyors and lighting systems, as well as cables, ormaintenance workcan also increase the risk of fire.
According to the statistical results of the fire department, the main fire hazards in cold storage facilities come from the following factors:
· Electrical or mechanical failure of conveyor and other transport equipment;
· Electrical equipment, cables and other equipment in suspended ceiling mezzanine;
· Lighting systems;
· Heating caused by maintenance operations;
· discarded cigarette butts;
· Arson.& nbsp;
Because there are a lot of plastic products such as packaging materials in the refrigerator, the fire will produce a lot of toxic corrosive smoke, which will cause damage to the goods and endanger personal safety. There are also a large number of flammable materials in the cold storage, such as pallet racks and extremely flammable lightweight plywood and other structural materials of cold storage facilities, which will also cause fires to spread rapidly from one place to another. Insurance statistics show that fire is by far the largest threat to commercial and industrial properties,accounting for more than 75% of the total dollar damage suffered by commercial and industrial properties on average each year.
VI. Areas requiring special protection in cold storage
Freezer/cooling rooms, cold rooms, workshops and maintenance areas, return ducts under protected areas, loading docks and surrounding areas, office and monitored areas, ceiling/roof mezzanine, middle of shelves
Cold storage is more special than the general warehouse, the temperature of the cold storage is relatively low,but the air is extremely dry, the low temperature cold storageis usually below zero,-18℃,-25℃,-30℃, and some frozen warehouses are used in places up tominus-35℃.
Somecold storage shelves with large capacity, relatively high height, in the case of fire, smoke is difficult to rise to the top under the influence of airflow.
VII. Selection of cold storage fire detectors
Because the temperature of cold storage is usually -18℃,-25℃,-30℃, and some frozen warehouses are usedat-35℃,traditionalpoint-type smoke detectors, dual-band image detectors, flame detectors, optical cross-section detectors, infrared linear beam smoke detectors,etc.cannot work normally and reliably in this environment.
In view of the characteristics of food cold chain fire and the use of the environment, it is suitable to useArctic Foxaspirating smoke detector, due to the large temperature difference between the inside and outside of the cold storage, it is easy to produce condensed water and ice, so the design of the cold storage fire detector and the requirements for the installation process of the field detection host are extremely critical.
VIII. Detector installation requirements
1. If the detector is installed outside,thelargetemperature difference between inside and outside is easy to cause airflow failureandicing phenomenon, and the sampling tube will be deformed and bent,thus causing the machine to fail to work normally and causing equipment failure;
2,the detector is placed outdoors, need to perforate the insulation wall, destroy the structure of the cold storage, affect the insulation effect of the cold storage;
3,aspirating smoke detectorshould be installedin the cold storage, to avoid icing and failure due toexcessive temperature difference,no need to punch in the insulation wall, can reduce the amount of work to the maximum extent and ensure reliable and stable work of the detector.
IX. Selection of sampling tube material
The material of the sampling tube depends on the installation site. For example, a sampling tube mounted on a ceiling may use a longer sampling tube suitable for a low temperature environment and an internal environment where the temperature fluctuates frequently. Such sampling tubes includeHFT halogen-free, fire-resistant, high-temperature resistant plastics, PP low-smoke halogen-free high-temperature resistant low-temperature environment-friendly high-density polyethylene plastics, etc.
X. Requirements for construction technology
Arctic Foxsampling tube systems should be installed as far away from the building structure as possible. Contact or close to the building structure, it is easy to condense or freeze. Although the working temperature in the cold storage is generally lower than0° C, there will still be a large temperature difference due to heat radiation, convection or conduction.
Freezers intermittently send cold air far below the design operating temperature of the refrigerator, about-35℃to-40℃. If the sampling tube is installed directly in this cold air stream, the temperature will become very low. When the freezing device is not working, the sampling tube takes a certain time to reach the cold storage temperature, so it may freeze. When installing the sampling tube, try to avoid this cold air flow.
The sampling hole should be punched on the side of the sampling tube, so that condensation or frost is not easy to accumulate. If it is punched at the bottom of the sampling tube, it is easy to be blocked.
Sampling tubes should be at least 300 mm from ceilings or wallsto reduce heat conduction from these surfaces.
XI. Daily maintenance of equipment
In low temperature environment, after using the pipeline for a period of time, some frost will be produced more or less at the suction hole. We have used special airflow deceleration diaphragm and antifreeze clamp when laying the equipment pipeline. It can produce vibration with the back blowing system to shake off the frost at the sampling hole, prevent the frost from blocking the sampling hole and the generation of bacteria stove, and ensure that the pipeline is normal and the airflow runs smoothly.
The size of refrigerated areas and ambient temperatures will vary, andArctic Foxfire detection must continue to operate in asensitive stateto protect risks and their contents at all times.
Whether in production, packaging, logistics or general refrigeration areas, Waterward cryogenic fire detection in these spaces must operate reliably despite low environmental conditions and the possibility of dew condensation.
Condensate accumulation will produce a high false alarm rateand affect the normal operation of social security, and significantly reduce the overall system reliability,WaterhuaArctic Fox (Arctic Fox)series of aspirating fire detection system can be in0℃ to–40℃ refrigerator for * fine smoke particles for efficient and reliablefire detection, very suitable for all sizes ofCold Stores storage space.
Of course, in addition to the use of advanced fire prevention technology, improve the level of operation management, increase the safety awareness of each post personnel is also not to be ignored, take precautions, prevent problems before they occur, in order to ensure the safety of cold storage.
- Name（chinese）
- Name（English）
- Shenzhen Waterhua Security Technology Co., Ltd.
- China credit code
- Identity Verification
- Product Category
- early warning system
- Address
-
Bao 'an District, Shenzhen, Guangdong, China
- Nearby port
- Shenzhen
Shenzhen Waterwa Security Technology Co., Ltd., a technology company focusing on the research and development of security and fire safety and emergency equipment, carries out smart fire protection, fire warning systems, fire fighting technology and equipment, emergency rescue technology and equipment, public safety Internet of Things monitoring technology and equipment research and manufacturing; It specializes in providing fire warning and detection systems and solutions for industrial sites, including: low-temperature cold storage, data centers, rail transit, tunnels, petrochemicals, airports and large scientific devices, etc. Protecting the safety of human life and property is our unswerving goal.- Name（chinese）
- Name（English）
- Shenzhen Waterhua Security Technology Co., Ltd.
- China credit code
- Identity Verification
- Product Category
- early warning system
- Address
-
Bao 'an District, Shenzhen, Guangdong, China
- Nearby port
- Shenzhen
Shenzhen Waterwa Security Technology Co., Ltd., a technology company focusing on the research and development of security and fire safety and emergency equipment, carries out smart fire protection, fire warning systems, fire fighting technology and equipment, emergency rescue technology and equipment, public safety Internet of Things monitoring technology and equipment research and manufacturing; It specializes in providing fire warning and detection systems and solutions for industrial sites, including: low-temperature cold storage, data centers, rail transit, tunnels, petrochemicals, airports and large scientific devices, etc. Protecting the safety of human life and property is our unswerving goal. -
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