vacuum tube solar collectors Vacuum Tube Solar Collector

vacuum tube solar collector Feature: 1.Glass vacuum tube solar collector, high temperature,antifreeze,vacuum insulation. 2.Food-grade stainless-steel SUS304 2B inner tank,full-automat

vacuum tube solar collector

Feature:

1.Glass vacuum tube solar collector, high temperature,antifreeze,vacuum insulation.

2.Food-grade stainless-steel SUS304 2B inner tank,full-automatic welding technology,under

the protection of magnesium rod,it can increase of service life.

3.High pressure polyurethane foaming insulation,as the prefect density and

4.the thermal conductivity coefficient is small, so it can provide effective heat preservation

5.It can supply for several outlets at the same time, so it can fit for various requirement.

6.Non-pressure operation, can be used for natural circulation systems, large collector area, flexible installation.

7.Designed for commercial building design, suitable for schools, dormitories, hotels, bath centers and other public construction applications.

8Can be used for a large swimming pool heating, hot water and other large industrial water systems.

9The outer tank adopt color steel plate,and it has good double anti-corrosion function.

10.Investment only once,benifit forever. No harm,no pollution, saving and clean.

Working principle:

the vacuum tube absorbs solar radiation and transform into heat, heat the water in the vacuum tube. hot water flows upward due to the small density , cold water flows downward due to the bigger density, it forms a natural circulation in the vacuum tube. It repeatedly for heat exchange. thereby heat the water in the collector manifold. cold water entering the collector manifold, replacement of the hot water , ultimately, we get hot water.

Technical data:

Specification & model

SD-G2-15

SD-G2-18

SD-G2-20

SD-G2-24

SD-G2-25

SD-G2-30

Full system parameter

Tube QTY(pcs)

15

18

20

24

25

30

Tube spacing㎜)

75

Water tank 

Net Volume of Storage Tank(L)

120

140

155

185

195

230

Gross Capacity(L)

155

185

205

245

255

305

Diamater of inner/outer Tank(㎜)

φ360/φ470

length of outer tank L1(㎜)

1310

1535

1685

1985

2060

2435

length of inner tank L(㎜)

1170

1395

1545

1845

1920

2295

material and thickness of inner tank(㎜)

SUS304 /t0.41

material of outer tank

color steel plate  t0.45

material of insulation

polyurethane 

Size of electrical heater hole 

11/4″

Cold water inlet hole

1/2″

Hot water outlet hole

1/2″

Assistant tank hole

1/2″

Air vent hole

1/2″

Drain vent hole

1/2″

Sensor hole

1/2″

Vacuum Tube

Diameter/Length(㎜)

φ58/1800

Material

High boron and silicon glass 3.3 

Outside thickness(㎜)

1.8

Inside thickness(㎜)

1.6

Light transmission rate

≥0.90

Vacuum degree (Pa)

<10^-2

Coating absorption

≥0.90

Coating emittance

≤0.07

Average heat waste coefficient

≤0.75W/(㎡·℃)

Frame

2 feets ( left-to-right )

3 feets ( left-middle-right )

Material 

Galvanized steel t1.2

Galvanized steel t1.2

Angle 

45°

Tube support Specification/hole distance(㎜)

φ58/75

Accessories:

Tube sealing ring

Silicon rubber/φ58

Tube dusting rings

Silicon rubber/φ58

Tube holder

ABS/φ58

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Zhejiang Sidite New Energy Co.,Ltd

Jiaxing Sidite Import & Export Co.,Ltd

Address: Yuxin industrial park, Nanhu Region

City:jiaxing Province:Zhejiang

Tel: 86-573-83224422

Fax: 86-573-83225533

Mail: info@sidite.com

Web: www.sidite-solar.com

Zhejiang Sidite New Energy Co.,Ltd

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