Housing: Die-casting aluminum housing; stainless steel faceplate, corrosion-resistance coating; remarkable ventilation and heat radiation.
304 or 316 stainless steel material panel, superior quality, impact resistance and corrosion resistance.
This underground floor lamp has a very wide range of applications, and you can install it in swimming pools, ponds, pools, fountains and other places. It can also be installed in gardens, squares, bridges, streets and other outdoor areas to achieve decorative effects.IP65 Waterproof floor recessed lights deck inground spotlight outdoor landscape ground buried lamp led underground light
Led Inground Light,Waterproof Underground Light,Outdoor Led Inground Lighting,Led Waterproof Underground Light Shenzhen You&My Electronic Technology Co., Ltd , https://www1.nbyoumysolarlight.com
Key Feature of led underground lamps
Embedded parts: Aluminum alloy
Protection grade: IP67
Rated Power: 1-50W
Color Temperature: R,Y,G,B,W,WW, a variety of colors for you to choose.
CRI:>80(white)
Efficiency: 80lm/W (white)
Control: on/off /DMX512/Controller
Beam Angle: 8°/12.5°/20°/30°/ 45°/60°/15*30°/10*60°
Operating Temperature: -25℃-50℃
Life span: 50000h
Warranty: 2 years for whole light
Application of Testing Instrument in Sewage Treatment System
1 Introduction Automatic instrumentation is one of the most critical subsystems in a control system. The general automatic detection instrument is mainly composed of three parts: the sensor, the device that converts the non-power signal into the electrical signal; the transmitter converts the electrical signal converted by the sensor into a 4-20mA current signal that is easy to handle or a 0 ~ 5v voltage signal and sent to the programmable logic controller (plc) for analysis and processing; display, the measurement results visually displayed. These three parts organically together, the lack of any part of it, can not be called a complete instrumentation. Automatic measurement instrument with its measurement accuracy, clear display, simple operation and other characteristics, has been widely used in industrial production, and automated instrumentation with the computer's internal interface, it is an important part of the automated control system, known as "Automated control system eyes." With the development of science and technology, automated testing technology has also been greatly developed, automated instrumentation in the sewage treatment has also been widely used, so that sewage treatment plants not only save a lot of manpower, material resources, more importantly, can be timely Adjust the wastewater treatment process. This article will take Jiangsu Shagang Group Hongfa coking plant production workshop sewage treatment as an example to introduce the automatic detection instrumentation in the sewage treatment system. 2 sewage treatment process Jiangsu Shagang Group Hongfa coking plant production workshop sewage treatment section mainly from other sections of the ammonia wastewater and gas water seal water. First of all wastewater pretreatment, the waste water into the degreasing tank, the role of the two units of crude oil device to remove the sewage in the oil impurities; through the flotation device 2 sludge dregs to remove the surface of the bubble wipe, will Smaller float removed; followed by biochemical treatment. Mainly through anaerobic tanks, anaerobic tanks and aerobic pools for a series of chemical reactions. After a simple pretreatment of water in the anaerobic tank, anaerobic tank and aerobic tank denitrification reaction, carbonization and nitrification reaction to reduce the sewage cod, ammonia content and dissolved oxygen; followed by adding coagulant Precipitation of suspended impurities in sewage, and finally purification filter, the treated water discharge standards in the target, the treated sludge with a belt filter press can be used as a renewable resource. 3 sewage treatment instruments 3.1 Ultrasonic level meter sewage lifting wells and anaerobic feed wells were installed an ultrasonic level meter, through the well inside the front and rear level difference reflects the amount of gas water from other sections over an amount of water seal Degree and go to the anaerobic pond sewage situation, and transmitted to plc controller for analysis and calculation. When the liquid level exceeds the set value, the on-site pump operating column switch hit the automatic position can be automatically controlled well pump automatically open and stop. This can be based on external water accurately and timely adjustment of pump operation, reduce equipment fatigue; the same time, you can cancel the traditional pumping station three shifts of human resources consumption. 3.2 flowmeter and transmitter flow and capacity of real-time monitoring. For the operation of sewage treatment section management, water is an important control parameter. Accurate and timely grasp of the amount of water, the process control and improve the sewage section to withstand the impact of hydraulic load has an important role. The traditional water measurement using weir plate or venturi flow slot, there are not real-time monitoring, real-time display shortcomings. Hongfa Coking Plant of Jiangsu Shagang Group Sewage treatment plant production workshop In the return sludge pipeline and the remaining sludge pipeline and anaerobic tank installed five measuring range is 0 ~ 1200m3 / h imported electromagnetic flowmeter to measure the return sludge and the remaining Sludge flow. Electromagnetic flowmeter can not only display the water flow in the field, but also through the plc transmission real-time display in the host computer traffic and total processing capacity to achieve an accurate measurement of water treatment, and to provide real-time traffic management purposes. After the installation of electromagnetic flowmeter, on duty staff can display the flow is correct, so as to determine the return sludge pump and the remaining sludge pump is working properly to solve the submersible pump can not simply determine whether the normal work of the problem, and electromagnetic flowmeter also has Easy to install, easy to maintain. Sewage Phenol Cyanide Blower In the aerobic tank blasting, we directly installed in the air pipe between the two 4 0 ~ 4000m3 / h (standard conditions) gas flow meter, and then through the eja transmitter 4-20ma signal conversion to obtain the amount of air duct, and plc system real-time display and monitoring PC. 3.3 Dissolved oxygen meter and PH detector shop processing section is the traditional activated sludge process. Aerobic biological treatment is undoubtedly the most important part of the sewage treatment, through the biological treatment of aerobic tank, can effectively remove the sewage in a variety of organic pollutants. The phenol cyanide air blower used to aerate the aerobic pond is the main equipment for the electric energy consumption of the sewage treatment section. The consumption of electric energy accounts for more than the total energy consumption of the whole section. In order to reduce the electric energy caused by excessive unnecessary oxygenation waste. In the sewage treatment section of the biochemical treatment area were installed in the measurement range of 0.05 ~ 10mg / l dissolved oxygen meter, real-time dissolved oxygen concentration online testing, the detected concentration into a standard current signal and timely transmission to plc and super machine. When the test concentration is less than or greater than the specified range, plc immediately issued a control instruction to regulate the output of sewage phenol cyanide blower outlet valve, thus ensuring aerobic bacteria bacteria good biochemical capacity and enhance the decomposition of aerobic bacteria capacity, but also reduce the sewage Processing section of the power consumption. To have a better sewage treatment effect, we must effectively control the biochemical pool water acid-base concentration. The general requirements of acid-base concentration control between 7-8, in order to reduce the labor intensity of the operator, in the biochemical treatment area installed ph meter on-line detection device, real-time detection of biochemical pool water acid-base concentration. And plc control system through the organic combination of the field detected data transmission plc and PC, directly on the computer screen can be observed at any time into the water and biochemical pool of water acid-base concentration, to facilitate its timely Make adjustments. 3.4 Sludge concentration meter Sludge concentration tank sludge concentration control. Sludge concentration tank sludge concentration sewage treatment process is an important process parameters. In traditional sewage treatment plants, the sludge concentration is monitored by the laboratory using the old test method. There is a big flaw in the timeliness and accuracy of the data provided, which makes it difficult to timely return the sludge and the amount of remaining sludge Process adjustment, resulting in time and accuracy of the error. Jiangsu Sha Steel Group Hongfa coking plant production workshop sewage treatment section in each sludge concentration tank are installed on a measurement range is 0.5 ~ 10g / l online sludge concentration meter, the detected concentration signal is converted to 4 -20ma standard electrical signals and timely transmission to the plc and the host computer and the system set the parameters compared to make the appropriate control based on comparison results, it is a good solution to this problem. Sludge concentration meter installed at any time according to the precise measurement of the sludge concentration, timely adjustment of the sludge concentration tank process, while reducing the labor intensity of laboratory staff. 4 sewage treatment plant instrumentation Jiangsu Sha Steel Group Hongfa Coking Plant production workshop wastewater treatment plant since October 2003 formally run in more than two years of operation and management, summarizes the experience to ensure the normal operation of automated instrumentation. (1) Probe Cleaning Maintains the Automation Instrumentation Sensor. Regularly arranged to clean the probe, to ensure the accuracy of data collection. Because the instrument works in the sewage environment, the cleaning work of the instrument is very important, especially the direct contact with the sewage dissolved oxygen meter, oxidation-reduction potentiometer and sludge concentration meter and other analytical instruments, in order to ensure the normal operation of the instrument, we Periodic arrangements for cleaning the instrument probe, every 7 days to fully clean the instrument 1, cleaning requires the use of soft materials, so as to avoid damage to the instrument. (2) Meter calibration Regular calibration of various instruments. Instrument in the long run will inevitably produce measurement error, which requires regular calibration of the instrumentation to ensure the accuracy of instrumentation, instrumentation, we developed a regular calibration once every two months; and requires laboratory work Personnel use analysis methods to analyze the corresponding test items, and compared with the field instrument monitoring results, if the deviation is too large, then the instrument should be corrected in time to ensure that the test data is accurate. (3) Power supply protection to ensure that the instrument
LED Chips: cree epistar cob .
Input Voltage: DC24V/AC100-264V, 50/60Hz
Model
DC 12 24V A
C 85-265V
LED Brand
CREE
EPISTAR
LED Quantity
1-36PCS
OEM ODM
Rated Power
1W 3W 5W 7W 9W 12W 15W
14W
Input Voltage
DC24V/AC100-240V,50/60Hz
Color Temperature
RGB/Single
RGB/single
Beam Angle
5°/8°/12.5°/20°/30°/ 45°/60°/15*30°/10*60°
Contrl Mode
DMX512/CC
DMX512/CC
Protection Grade
IP67
IP67