Solar Water Heater Accessories Copper Heat Tube Solar Vacuum Tube
- $6.00 /set
- 1 set
- Haining Sanneng Solar Water Heater Co., Ltd.
- Zhejiang, China
- Mr junjie Wang
size: | 47/1500,1600,1800mm 58/1800,2000,2100mm | greatest pressure: | 6 bar |
Origin: | Zhejiang, China | Delivery Details: | Within 7-15 working days after payment |
Solar absorption: | ≥0.96 (AM1.5) | payment terms: | L/C, T/T |
Heat pipe: | TU1 Copper | type: | Pressurize |
port: | Shanghai/Ningbo | Outer copper: | Aluminum plate |
Coating method: | Three target coating | Packaging Details: | Solar water heater accessories Copper heat pipe Solar vacuum tube Packaging: 1. Sample export wooden box packaging 2. Container export carton foam packaging |
Supply capacity: | 20000 sets per week | brand: | Serial number/OEM |
Heat Conduction: | Selectively coated sheet metal | Pipe material: | glass, glass |
model: | SN-HP58/1800 | Internal Vacuum Tube: | copper heat pipe |
application: | water heater | product name: | Solar Water Heater Accessories Copper Heat Tube Solar Vacuum Tube |
Solar Water Heater Accessories Copper Heat Tube Solar Vacuum Tube
Heat pipe solar vacuum tube technical data
Vacuum tube size | Φ58*1800mm / Φ47*1800mm |
Vacuum tube material | High borosilicate glass 3.3 |
selective coating | Copper/SS-ALN(H)/SS-ALN(L)/ALN |
heat pipe diameter | Condenser Φ14/24mm, lamp body Φ8mm |
Heat pipe material | TU1 Copper |
heat conductor | Aluminum edging |
Tube Sealing Material | Silicone stopper with stainless steel plate |
Vacuum | ≤4*10-3Pa |
Absorption coefficient | ≥90% |
Emission factor | ≤7.5% |
Heat transfer efficiency | ≥95% |
Heat transfer coefficient | (1.6~2)*104W/m |
Heat transfer power | 150 - 180W |
heat resistance | 0.01 - 0.02°C/W |
Isotherm | ≤2℃ |
Start temperature | ≤25℃ |
activation rate | 30 seconds |
Thermally sensible | From liquids to gases and particles |
Operating temperature | (-)40~260℃ |
Axial thermal conductivity | 27.2 MW/square meter |
Radial thermal conductivity | 145 kW/m |
Equivalent thermal conductivity | 6000-15000 times |
working angle | 15~90° |
Anti-hail ability | Φ25mm |
The duration of the element | ≥15 years |
model | Size/mm | Container Load Quantity (PCS) | ||
|
| 20GP | 40GP | 40 headquarters |
SN-HP47/1800 | Φ47*1800 | 4256 | 8511 | 10335 |
SN-HP58/1800 | Φ58*1800 | 2547 | 5094 | 6186 |
1 Solar heat pipe vacuum tube product description
Heat pipes may seem like a new concept, but you probably use them every day and
don't even know. Laptops typically use small heat pipes to move heat away
CPU and air conditioning systems generally use heat pipes for heat conduction.
The solar heat pipe tube is the heart of the SANENG heat pipe solar collector, responsible for
Absorb sunlight and convert it into usable heat. In SANENG heat pipe solar collector
They are used to transfer heat from inside the vacuum tubes to the headers
Housed in an insulated manifold box.
2Sanneng solar heat pipe vacuum tube features
structure and operation
The SANENG heat pipe design consists of a long hollow copper tube with a large diameter
The condenser is welded on one end. A small amount of high-purity water and special additives
Added to the heat pipe, then heated to high temperature to expel the air inside
space, resulting in a vacuum, similar to the space between evacuated glass walls
tube.
In a heat pipe, the vacuum is not used to insulate the heat, but to change the behavior of the heat pipe
liquidin. At sea level water boils at 100oC/212oF but if you climb to the topThe boiling temperature of the mountain will be lower. This is due to air pressure difference and vacuum
It is a state of very low stress. Based on the principle that water boils at lower temperatures
With lower air pressure, we can achieve the same result by venting the heat pipe.
The boiling point of the heat pipe used in SANENG solar collector is only about 25oC, so
When the heat pipe heats above this temperature, the water begins to evaporate (turn into steam). This steam quickly rises to the top of the heat pipe and carries a lot of heat.
When heat is transferred to a cooler liquid that circulates through the solar collector header
At the top of the pipe, the vapor condenses into liquid (water) and returns to the bottom
hotAgain piped toRepeat cycle.
During the operation cycle of the heat pipe, the process of condensate (water) flowing to the bottom depends on
gravity, so heat pipes of this design do not function when horizontal, and have
Reduce output when vertical. SANENG recommends that the installation angle range is 20-80o
Ensure optimal solar collector performance.
In the vacuum space, the water in the heat pipe forms a small ball shape. When the heat pipe is in
Shake it up and you can hear the rattle of the water balloon inside. It's just water, but it sounds like water
A piece of hard metal.
While it sounds simple, it takes more than 20 manufacturing steps to create a high-quality heat pipe
Strict quality control.
Performance
The role of the heat pipe in the vacuum tube is to transfer heat quickly. heat
Therefore the pipe capacity must be greater than the maximum output of the vacuum tube to avoid
Bottleneck in the heat transfer chain. The average heat transfer capacity of SANENG heat pipes is >110 watts. The maximum heat output of SANENG vacuum tubes is about 65 watts.
SANENG heat pipes also feature bulk condensers that provide sufficient surface area for optimal heat transfer.
longevity
Material quality and cleanliness are extremely important in making a good heat pipe. The copper itself must also be of very high purity, containing only trace amounts of oxygen
and other impurities. If there are too many impurities in the copper, they will leach into the copper.
Over time, the vacuum creates bubbles at the top of the heat pipe. This has the following effect
Move the hottest point of the heatpipe down, away from the heat-transferring bulb
needs to happen.
SANENG produces its own heat pipes in an ISO9001:2008 certified factory and strictly controls
And carry out quality inspection on every link of the production process.
Each heat pipe is tested for heat transfer performance and exposed to a temperature of 300°C before use
To be approved for use, so the copper heat pipe is relatively soft. Heat pipe
Very stiff not so rigorously tested for quality, may form air
Over time, pockets on the top develop, greatly reducing heat transfer performance.
frost protection
Although the inside of the heat pipe is a vacuum, the boiling point has dropped to 25°C, but
The freezing point is still the same as sea level water at 0C. Since the heat pipe is located in
Vacuum insulated glass tube, night temperature as low as -40°C will not cause the heat pipe to heat up
freeze. The water used in the heat pipe will still freeze under special cold conditions, but it will freeze at a certain temperature.
The controlled way will not cause the copper pipe to expand.
3advantageheat pipe solar collector
Comparison with Evacuated Tube Solar Collectors
1. Efficient heat pipe;
2. High pressure antifreeze collector;
3. Closed loop heat loss is less;
4. No risk of thermal shock rupture;
5. No risk of cracking due to freezing of water.
6. One or more pipes are broken, and the system still does not drain;
Comparison with Flat Panel Solar Collectors
1. The collector has higher efficiency, vacuum insulation, and lower heat loss;
2. The heat pipe has super antifreeze performance in cold weather conditions;
3. One or more pipes are broken, and the system still does not drain;
4. The system components are more convenient to carry and install;
4 Services of Haining Sanneng Solar Water Heater Co., Ltd.
fast reaction: Your inquiry will be replied within 24 hours by email or online chat tool;
technical support:You have more than 10 years of experience in product advice, installation guidance, market analysis, etc. in Sanneng Solar.
OEM & ODM: We welcome solar collectors, storage tanks,
Installing frameworks and even some outsourced equipment;
sample inspection: Despite quality control during production, samples are selected and
Installation inspection before shipment;
MOQ: We provide sample sample manufacture for customer checking
SANENG quality and service;
delivery service: SANENG company provides the service of arranging the shipment of goods to foreign ports
Or the inland station, if necessary, handle cargo insurance, customs clearance, etc.;
Import certificate: SANENG provides certificates of origin CO, FORM A, FORM E,
FORM F, customs certification, etc.
5 notes
1. Delivery time: 7-15 working days after payment received
2. Payment method: T/T, L/C, Western Union
3. Warranty: 5 years for the whole machine, 15 years for the vacuum tube, and 1 year for accessories
4. Trade terms: FOB, CFR and CIF
5. Contact: Ms. He Mobile: (00)86-13511390503 Skype: eva201423