Venttech Air Cooled Heat Exchanger Application

Air cooler (air cooled heat exchanger) is the use of air cooling heat fluid heat exchanger. The hot fluid in the tube is heat exchanged with the outside air through the tube wall and the fins, and the air is usually supplied by the fan. Air cooler can be used for cooling or condensation, widely used in: oil refining, petrochemical top vapor condensation; reflux oil, tower base oil cooling; various reaction products cooling; Condensation. Working pressure up to 69 MPa. But the power consumption, noise and floor area are large, the cooling effect by the impact of climate change.

1. Air Cooled Heat Exchanger can be used in air conditioner, cold room, freezer, refrigerator and other area.
2. Fin: flat or corrugated aluminum foils; hydrophilic or bare fin.
3. Tube: copper pipe
4. Φ7mm, φ7.94mm, φ9.52mm ,φ12.75mm, φ15.88 of tube O.D. available
5. Customized service is available according to customer's drawings to meet end user's specified requirements.
6. Materials of fin and tube per customer's need, it could be aluminum, copper or stainless steel
7. Leak test: 2.5Mpa water test
8. Producing process: tube bend, press fins, expand tube, welding, leak test, dry, inspect, pack.

COLD ROOM EVAPORATOR FOR SOUTH AFRICA CLIENT

Our condensers and plate fin evaporator can be widely used in air conditioners, heat pumps, fan coils, air handing units, drinking machines, ice makers, dehumidifiers, laser machines, welding machines and other area. We can not only manufacture copper pipe condensers and evaporators, but also manufacture stainless steel pipe and aluminum pipe condensers and evaporators.

1. Air cooled evaporator is widely used in AC industry.
2. Fin: flat or corrugated aluminum foils; hydrophilic or bare fin.
3. Tube: copper pipe
4. Φ7mm, φ7.94mm, φ9.52mm ,φ12.75mm, φ15.88 of tube O.D. available
5. Customized service is available according to customer's drawings to meet end user's specified requirements.
6. Materials of fin and tube per customer's need, it could be aluminum, copper or stainless steel
7. Leak test: 2.5Mpa water test
8. Producing process: tube bend, press fins, expand tube, welding, leak test, dry, inspect, pack.

UHF On-metal Tag (P/N: RI-U135)

A brief specification:
- Size: 135 L x34 Wx13Th mm (with tape)
- Material： ABS casing + 3M VHB adhesive tape
- Frequency: 860-960MHZ
- RFID IC: 128bit EPC ,512bit user memory,
32bit for kill password, 32 bit for lock password.
Reading range: >1.0m over concrete; >1.2m over metal
( using 2-3dbi handheld reader)

A Case Study For Building Service System


Abstract:
Many clients use our UHF anti-metal tag and readers with SDK to establish a building service RFID system.
- to monitor the assets and to smooth the maintenance for all types of building service equipment , like water pumps, water tanks, electricity generators, fire alarm systems, lift switch and CCTV systems, etc.


This mount-on-metal RFID tag contains the ID and information associates with the equipment for the maintenance service provider, who can easily use a PDA to read the information inside UHF RFID tag on metal, and then upload the useful maintenance records, such as who, when and what have/have been checked simultaneously.
This RFID system will link up with the ERP system for automatic contract renewal, order submission and invoice issuing.
This UHF rfid metal tag is engineered to provide up to 1.2m reading range over concrete and metal object.

This ultrasound welded ABS plastic casing, provides water-proof and dust proof protection and backed with a strong 3M VHB adhesive tape. It is suitable for outdoor (such as sunny or rainy situations) and indoor environment (such as oily dusty pump rooms). No battery and no maintenance is needed for this tag, it can last forever as long as the RFID chip inside is functioning (over 50 years).

Not just reducing the tremendous paper work, this system also improved the efficiency for the overall operation. Sometimes, efficient maintenance can help save life, for example, fire telephone link or lift generator set.

What are LED filaments?

LED filaments are an innovative technology, where a normal 3.0 V LED chip is adhered inside a leadframe cup with epoxy, and dispensers are used in the packaging process to make PLCC packages. LED filaments basically comprise of many LED chips placed next to each other in a series connection onto a glass substrate, and then are compressed into LED packages. The LED luminaires possess low current and high voltage features, which effectively lowers LED thermal dissipation and driver costs, giving it a competitive edge.
These LED filaments are a new type of LED packaging, and one of the most popular on the market because it can be used to make LED E27 bulbs similar to incandescent bulbs, which can easily achieve omnidirectional 360 degree lighting.
LED filaments usually are made with 28 pieces of 1016 LEDs that are 0.02W, these LED chips use series connection to be placed on sapphire substrates that are 38 mm long and 1.5 mm wide, before it is coated with phosphor. LED filaments tend to use 10 mA electric current to drive the devices, and use 84V and have a luminous efficiency of 0.84W and light output of 100 lm. The LEDs lumen efficiency can reach 120 lm/W, and combined with red LED chips the CRI can reach above 95, and possess excellent optoelectronic features.
By using LED filaments the companies can make small to mid-power LED bulbs or candle lights that usually comprise of four LED filaments. The filaments can be arranged in two series connections or two parallel connections to reach the power output of 3.6W LED bulb or LED candle light, or reach 400 lm luminous output that can be used to replace 40W incandescent bulbs.
Incandescent bulb manufacturers can use current technology and production lines to make LED filament bulbs, which use existing incandescent bulb glass leadframe designs to connect the LED filaments. By using special highly transmissivity incandescent bulb technology and automatic glass bulb blowing technology to make incandescent LED bulbs with high C/P ratio.

Application for Soal Tools

Now, which is mainly composed of cemented carbide cutting toolmaterial has entered the era, compared with the high speed steel, cementedcarbide has a better performance and higher cutting efficiency.
Nogood cutting tool material, cutting tool innovation and technological progressare lack the necessary material base, is just a castle in the air.
Modern, efficient cutting tools has become China's manyconditional powerful tool product main attack direction of the enterprise.
In the development of modern manufacturing ,and improve the machining quality and efficiency,is the eternal pursuit, Modern,efficient tool is to serve the demand of"high predision,high efficiency,high reliability and specialty"tool.