FAQ
all
Production and Customization
Service Related
Trade Related

all

What is the use, composition and functional characteristics of explosion-proof junction box?

Explosion proof junction box is a kind of connector with strong explosion-proof and sealing property for circuit laying. From the appearance, it is a sealed box. It is used in chemical, pharmaceutical and other measurement applications with explosion-proof requirements. It can also be used in the explosive environment of petroleum, chemical and other enterprises as telephone cable wiring and branching. The explosion-proof weighing system is composed of explosion-proof digital instruments, explosion-proof sensors, etc.Explosion proof junction box is composed of cover, body, connecting terminal, diode, connecting wire and connector. The shell has strong anti-aging and UV resistance, which meets the use requirements under outdoor harsh environmental conditions. The self-locking function makes the connection more convenient and firm. It must have waterproof sealing design, scientific anti electric shock insulation protection, and better safety performance.Features and functions of explosion-proof junction box:1. Explosion proof junction box is generally composed of junction box cover, box body, connecting terminal, diode, connecting wire and connector. Compared with the ordinary junction box, the anti-aging and corrosion ability of its shell is  lengthen many times.2. The product is designed to adapt to various harsh environments.3. The special self-locking function makes the connection of the product faster and stronger.4. The structure is completely professional design, with waterproof sealing and anti electric shock function, which is very safe and reliable.

What is the use, composition and functional characteristics of explosion-proof junction box?

Explosion proof junction box is a kind of connector with strong explosion-proof and sealing property for circuit laying. From the appearance, it is a sealed box. It is used in chemical, pharmaceutical and other measurement applications with explosion-proof requirements. It can also be used in the explosive environment of petroleum, chemical and other enterprises as telephone cable wiring and branching. The explosion-proof weighing system is composed of explosion-proof digital instruments, explosion-proof sensors, etc.Explosion proof junction box is composed of cover, body, connecting terminal, diode, connecting wire and connector. The shell has strong anti-aging and UV resistance, which meets the use requirements under outdoor harsh environmental conditions. The self-locking function makes the connection more convenient and firm. It must have waterproof sealing design, scientific anti electric shock insulation protection, and better safety performance.Features and functions of explosion-proof junction box:1. Explosion proof junction box is generally composed of junction box cover, box body, connecting terminal, diode, connecting wire and connector. Compared with the ordinary junction box, the anti-aging and corrosion ability of its shell is  lengthen many times.2. The product is designed to adapt to various harsh environments.3. The special self-locking function makes the connection of the product faster and stronger.4. The structure is completely professional design, with waterproof sealing and anti electric shock function, which is very safe and reliable.

What is the development trend of explosion-proof surveillance camera technology?

Explosion proof monitoring camera shall be used in explosive gas or explosive dust environment. What is the development trend of explosion-proof surveillance camera technology? The professional analysis of ztkb ex manufacturer Shenzhen Zhongtian explosion proof Technology Co., Ltd. is as follows:1. From analog to digital, the earliest explosion-proof monitoring camera is closed-circuit television. CCTV is generally analog signal. In fact, digital explosion-proof surveillance camera or high-definition network explosion-proof surveillance camera is not a new thing, but since last year, the shipment of network explosion-proof surveillance camera has exceeded that of analog explosion-proof surveillance camera for the first time. This turning point occurred one or two years later than we expected. This reflects that the networking of network explosion-proof surveillance camera is very fast than we expected at the earliest.2. In terms of the resolution of explosion-proof surveillance cameras, there are more and more requirements from standard definition to HD and even 4K. It's not clear here. The biggest advantage is that after the resolution is improved, more and more digital information is provided. Just like the human eye, the human eye sees very high-definition things. So we capture a lot of information and images, if it is standard definition image 640 × Compared with the number of 480p pixels, it obtains relatively low information. Then, with the HD to 1080p to 4K, its amount of information is increasing. The advantage of large amount of information is that it can do more intelligent analysis. In addition to analyzing the color, it can analyze the license plate, the face, and some specific trends and specific patterns.3. The process from isolation to networking. In fact, this is closely related to the change from analog to digital. At the beginning, it is the same city cable. The transmission distance of optical cable in the same city may be very limited, which can not be transmitted for a long time, and the cost is relatively high. The first advantage of the network is that the wiring cost is very low, or the overall cost is very low, which promotes the development of explosion-proof surveillance cameras. The second is manageable and controllable. It is very convenient to manage explosion-proof surveillance cameras or front-end equipment through the network.4. From simple video recording to intelligent analysis. On the one hand, it is related to safe city or intelligent transportation, on the other hand, it is related to the emergence of new business models. In the original traditional mode, what was stored on the hard disk or tape? Now there are many analysis requirements in addition to storage.5. In addition to government projects, we can see that there are many demands for security or video surveillance in shopping malls and civil markets. I can't accurately say this data, but from the video data obtained from criminal investigation cases of public security, a considerable proportion has come from civil explosion-proof surveillance cameras. If you set up points in Tiananmen Square, of course, Tiananmen Square is a government explosion-proof surveillance camera. If there are many explosion-proof surveillance camera resources in downtown areas, such as retail stores, a community and so on, these actually provide a lot of data sources for the government to solve cases and do criminal investigation. But in essence, the increase of explosion-proof surveillance cameras in the commercial consumer market is not only helpful to the government's security work, but also to their own consumption and their own.

why should we choose explosion proof cameras?

After knowing explosion proof cameras, many friends may have a doubt: why do we use explosion proof cameras? Do you have to use explosion-proof products? Can't ordinary cameras replace explosion-proof cameras? In this regard, we wants to say that all things have their own reasons. First of all, let's learn about the developing process of explosion-proof camera.The initial demand for explosion prevention requirements for electrical equipment  of coal mines, for there are gases under coal mines, which cause explosion or combustion earsily.With the development of industrialization, demandes for explosion-proof requirements of electrical equipment has expanded to various fields: Petroleum, chemical industry, medicine, navigation, aerospace, metallurgy, scientific research and military industry. The requirements are even greater and different,. In particular, the rapid development of global petrochemical industry has accelerated the development of explosion-proof industrial monitoring products, and a large number of electrical equipment are used in production.The electrical equipment, safety equipment and lighting fixtures used will inevitably produce electric sparks, arcs and high temperatures that are allowed under normal circumstances. However, due to site conditions and other factors, the concentration of explosive mixture may continue to rise. When it reaches a certain concentration, it will be detonated by the ignition source - Electric sparks, arcs and high temperatures, and the consequences will be unimaginable.During the process of experiment, production, processing, transportation and storage, many industrial enterprises or research departments such as petroleum, chemical industry, gunpowder and natural gas may often leak and spill all kinds of flammable and explosive gases, liquids and all kinds of dust and fibers. When these substances are mixed with air, they will become a mixture prone to explosion hazard, The places around it have also become explosion dangerous places to varying degrees. When the concentration of explosives reaches the critical point of explosion, once the explosion source appears, serious accidents such as explosion and fire will occur, resulting in casualties and property losses.Therefore, cameras, electric PTZ, junction boxes and other equipment installed in hazardous areas used in these places must be explosion-proof; The electrical explosion-proof type can be divided into explosion-proof type, intrinsically safe type, pouring and sealing type and so on. At present, most explosion-proof cameras on the market adopt explosion-proof type, and explosion-proof is the most direct and economical explosion-proof type. Explosion proof high-speed monitoring equipment, such as explosion-proof junction box and explosion-proof ball, are also explosion-proof.So in the industry mentioned above, do we have to use explosion-proof equipment in all links? The answer is No. In fact, as long as the front-end equipment selects high-level explosion-proof equipment to ensure safety to the greatest extent, the back-end problem doesn't matter.What are the front-end devices? For example, explosion-proof camera, explosion-proof ball machine, explosion-proof junction box and other equipment must be installed on site, which belongs to the front-end equipment. The monitoring room can be set in the safety zone, so the equipment in the monitoring room can choose conventional equipment, which can effectively reduce the cost.We still suggests that in high-risk environment, it is best to use explosion-proof products that meet national standards, which are safe, reliable and safe to use. STAN explosion camera is widely used in high-risk areas such as petroleum, chemical industry, natural gas and military industry. It is your assured choice.

Precautions for installation of explosion-proof camera

Now, with the increasing demand for security in our society, more and more surveillance cameras are applied in all walks of life, contributing a great deal to our security. However, in some special places, such as chemical plants, gas stations and other places where inflammables and explosives are produced, ordinary cameras can not adapt to this environment. At this time, the explosion-proof camera appears in people's line of sight, and its installation has always been a bother. What are the precautions for installing explosion-proof cameras? Let's have a look!1、 WiringWiring can take appropriate lines, generally mainly to establish the original network foundation Especially for the video signal transmitted by wire, the most noteworthy thing is not to let the signal line transmit in the same direction as the high-power line, let alone put them in the same transmission line tube for the convenience of construction. Even if the two cannot be separated due to environmental constraints, it is necessary to ensure an interval of at least half a meter.2、 Lighting environmentExplosion proof cameras may be afraid of backlight during installation. Side lighting is a good choice, but it is not always possible to install them in the position of side light. Therefore, sometimes the most taboo backlight irradiation is required. If the explosion-proof camera is used at night, in order to avoid reflection and shadow, lighting equipment is usually required. The explosion-proof camera is generally assisted by infrared light.3、 High performance terminalUnder the illumination of strong light, the direct strong light is easy to make the explosion-proof camera difficult to locate the accurate image normally, so that the explosion-proof camera appears stripes in the monitoring image. Therefore, in any case, we should avoid the direct stimulation of strong light to the explosion-proof camera lens for a long time.The above is the precautions for the installation of explosion-proof camera shared by Xiaobian. I hope it will be helpful to you.

What principles should be referred to in the monitoring planning of explosion-proof cameras

As a kind of video screen inspection equipment, explosion-proof cameras need to refer to what principles for planning. Do you know? The editor of HongBo Yatai will give you the following analysis on this issue:According to the characteristics of key areas, combined with existing monitoring points, and in accordance with actual combat needs, the planning ideas of "encirclement, supplement, connection, and integration" are proposed:1. Encirclement: As the name implies, enclose the target area to form a closed circle.One is to control all the intersections in and out of the market,The second is to control all entrances and exits in the main urban area.The third is to control the entrances and exits of local jurisdictions to ensure 100% effective coverage of main entrances and exits, so that any people, vehicles, objects, etc. entering and exiting can obtain clear images; strive to achieve effective coverage of all entrances and exits.2. Connection: control all key parts, key places, and the entrances and exits around key parts, and combine the surrounding camera distribution to connect them in lines and circles according to the main roads in the urban area to form multiple interconnected closed circles to ensure multiple captures of movement Target.3. Supplement: Supplement for various closed circles: ensure that the target must be able to achieve clear coverage when passing through the closed circles of each layer, and rationally plan the overlapped closed circles of each jurisdiction to avoid repeated construction and missing construction; for closed circles Internal replenishment points: mainly in the closed circle of the police station, re-establish monitoring points for the classified key units, key places, and key parts, especially for areas with high incidence of cases. Select the camera type to replenish the points according to the actual situation.4. Combine: Integrate social resources and give full play to the auxiliary role of social resources in the prevention and control of public security. In particular, the video resources at the entrances and exits of closed key units should be fully utilized to form a powerful supplement to all levels of closed circles.

Precautions for the installation of explosion-proof monitoring equipment

      1. The inlet of the explosion-proof camera must be sealed with a rubber sealing ring. It is forbidden to use other methods such as filling and sealing glue, asbestos rope, etc. to replace it; it is forbidden to fill the cavity with any substance. Loss of explosion-proof performance; oil stains on the rubber seal ring should be scrubbed to avoid aging and deterioration.  2. It is strictly forbidden to change the structure, parts and internal wiring of the explosion-proof camera casually. Fastening bolts must not be replaced or missing arbitrarily. The redundant elastic gaskets and metal gaskets of the inlet and outlet must be kept in the sealed state at the factory, and the compression nut should be tightened to seal the inlet.  3. The wiring is best to go with hidden wires. If there is no way to go with open wires, then you must ensure that the physical protection of the wiring part is the best.       4. When installing, pay attention to avoiding strong impact on the explosion-proof infrared camera. Before installation, you must confirm whether the power supply voltage is at the specified voltage to avoid burnout. The lens should not be aimed at strong lights, such as sunlight, lighting, etc., otherwise it will be prone to over-brightness. , It will also have a certain impact on the service life of the ccd. The installation location of the explosion-proof infrared camera should also avoid places such as humidity, dust, extreme heat, extreme cold, and strong electromagnetic radiation.  5. During routine operation, maintenance and inspection, try to avoid opening the explosion-proof camera housing, and cut off the power supply when you must open it. If the explosion-proof enclosure is opened, the explosion-proof surface shall be properly protected and shall not be damaged. The explosion-proof surface shall be placed upward during maintenance and shall not directly touch the ground. After cleaning, the explosion-proof surface shall be coated with phosphating paste or 204 anti-rust oil.

Precautions for the selection of explosion-proof monitoring equipment

Because explosion-proof cameras can be used in places with relatively harsh environments, they have quickly become popular in gas station chemical plants, flour mills, coal mines and other fields. In order to make production safer, more and more engineering companies choose explosion-proof monitoring equipment to monitor daily production. So how to choose an explosion-proof camera? What should be paid attention to during the installation of explosion-proof cameras? How to choose an explosion-proof camera:   1. The alarm function, the self-check alarm of the explosion-proof camera is very important.  The self-check alarm is an important guarantee for the stable mechanical performance and smooth operation of the explosion-proof camera. Some explosion-proof cameras also have an alarm port, which is connected to other alarm devices. When an abnormal situation is encountered, the alarm linkage function can be realized. If the explosion-proof camera lens is artificially blocked, it will also alarm to ensure smooth monitoring. For example, explosion-proof cameras are used in oil fields and mines with extreme environments. In winter, it may be minus 30C, and the pivot of the pan/tilt may be frozen. If the explosion-proof cameras do not have a self-check, they may stop working. so,2. The most important thing in the selection of explosion-proof cameras is the complete set. In addition to the above two aspects, in order to enhance the environmental adaptability of explosion-proof cameras, it is usually necessary to add sunshades, heaters, filters, wipers, fans/semiconductor refrigeration devices, etc. Value-added accessories to ensure the stable operation of the equipment and the clarity of the monitoring screen.   3. The current international mainstream method of explosion-proof cameras is explosion-proof type.It is characterized in that the conventional ordinary camera is placed in a special shell, which has the function of isolating the sparks and arcs generated by the electrical components in the shell from the explosive mixture outside the shell, and can withstand the explosive mixture that enters the shell. The explosion pressure generated by sparks and arcs of electrical equipment when the shell is detonated, and the shell is not destroyed; at the same time, it can prevent the explosion products in the shell from transferring to the explosive mixture outside the shell, and will not cause the explosive mixture outside the shell to burn and explode. This kind of camera with a flameproof enclosure is a "flameproof explosion-proof camera". And this special enclosure is called "flameproof enclosure", we usually call it "flameproof camera protective cover".   In this case, as long as the size is right, the engineer can freely choose the built-in camera and lens, and the cost is also reduced. For future maintenance, it is also much more convenient. The camera and lens can be removed by opening the cover when the power is turned off.

Introduction of explosion-proof surveillance cameras and principle of explosion-proof Introduction

Many industrial enterprises or research departments in the petroleum, chemical, coal, scientific research, military and other countries often leak and spill a variety of inflammables and explosives during the various processes of experimentation, production, processing, transportation and storage. Gas, liquid and various powders and fibers. After these substances are mixed with air, they will become a mixture that is prone to explosion hazards, and the surrounding places have become explosion hazard places of different degrees. In this dangerous working environment In China, you need to use safer products.Explosion-proof cameras are such products.At present, the most common explosion-proof surveillance camera on the market is an "explosion-proof" type, which encloses all the parts of the camera that may ignite explosive gas mixtures in a shell, and its shell can withstand any joint surface or structural gap of the shell. The flammable mixture that penetrates into the shell will explode inside without being damaged, and will not cause the ignition of an explosive environment formed by one or more gases outside. Put the camera parts that may generate sparks, arcs and dangerous temperatures in a flameproof enclosure, which separates the internal space of the camera from the surrounding environment.There are gaps in the explosion-proof enclosure. Due to the respiration and gas penetration of electrical equipment, there may be explosive gas mixtures inside. When it explodes, the enclosure can withstand the explosion pressure generated without damage. At the same time, the structural gap of the enclosure can cool the flame and reduce The flame propagation speed or termination of the acceleration chain prevents flames or dangerous flame products from passing through the flameproof gap to ignite the external explosive environment, thereby achieving the purpose of flameproofing. Therefore, many security companies mainly produce such flameproof enclosures.