CN2856849Y

CN2856849Y - Freezing-proof solar water heater with shutter

Info

Publication number: CN2856849Y
Application number: CN 200520091862
Authority: CN
Inventors: 张寅啸; 张辛衡; 张烨; 孟策
Original assignee: 张寅啸
Priority date: 2005-07-18
Filing date: 2005-07-18
Publication date: 2007-01-10
Anticipated expiration: 2015-07-18

Abstract

A shutter anti-freezing solar water heater is composed of a water tank 1, a circular pump 2, a fixation bracket 5, a positive pressure safety valve 6, a hot water valve 7, a negative pressure balance valve 10, manifolds 11, a non-return valve 12, a cool water inlet 13, heat-accompany cables 14, active joints 16 and blades 17, wherein the blades forms a horizontal shutter heat collector which can be attached to the wall, the angle of the blades can be adjusted by the active joints, the water tank is disposed indoors, the outdoor pipeline and the blades are attached with the heat-accompany cables to prevent freezing by electric heating in winter, the positive pressure safety valve 6 is arranged in the lower part of the heat collector and the negative pressure balance valve is arranged in the upper part of the heat collector to render the shutter heat collector with an anti-freezing function.

Description

The shutter anti-freezing solar water heater

Technical field the utility model shutter anti-freezing solar water heater relates to a kind of heat collector that utilizes solar energy.

The present solar thermal collector of background technology has solar vacuum heat-collecting pipe water heater and plate-type solar water heater, and these two kinds of water heaters take up room bigger when installing and using.

The purpose of summary of the invention the utility model shutter anti-freezing solar water heater is to propose a kind of can the installation along wall, and it is little to take up room, can antifreeze freeze proof solar water heater.It is made up of band finned tube thermal-arrest bar, water tank, circulating pump, check-valves, accompanying-heat cable, malleation safety valve, negative-pressure balancing valve and water pipe.Band finned tube thermal-arrest bar is assembled into horizontal direction shutter heat collector, and the inclination angle of band finned tube thermal-arrest bar can be regulated according to actual conditions; The shutter heat collector is attached to roof or roofing wall, solved traditional water heater and taken up room and influence the problem of the appearance of the city greatly; The shutter heat collector separates with water tank, and heat collector is installed in outdoor, and water tank is placed on indoor, has solved the water heater problem overweight to the pressure on roof of heat collector and water tank one; In shutter heat collector lower end the malleation safety valve is set and prevents that heat collector is damaged by frost, in shutter heat collector upper end the negative-pressure balancing valve is set and damages heat collector, thereby solved freeze proof problem in case stagnant ice produces negative pressure in the heat collector when melting; On outdoor pipeline and band finned tube thermal-arrest bar, lay accompanying-heat cable to prevent that water heater freezes in the winter time.Circulating pump is set makes water carry out forced circulation, water is by Fast Heating; The use path of check-valves with the circulation heating circuit and the water of automatic switchover water is set.Band finned tube thermal-arrest bar is made by copper or aluminium, and each band finned tube thermal-arrest bar is arranged among the transparent shroud of insulation.

Description of drawings

Fig. 1 is a vane type shutter anti-freezing solar water heater structural representation

Fig. 2 Fig. 3 Fig. 4 is the blade construction schematic diagram, and Fig. 2 is the blade front view, and Fig. 3 is the blade left view, and Fig. 4 is blade section figure.

Fig. 5 Fig. 6 Fig. 7 is a vacuum tube thermal-collecting tube shutter anti-freezing solar water heater structural representation, Fig. 5 is a vacuum tube thermal-collecting tube shutter anti-freezing solar water heater front view, Fig. 6 is a vacuum tube thermal-collecting tube shutter anti-freeze solar heat collector profile, and Fig. 7 is the partial enlarged drawing of Fig. 6.

In Fig. 1,1 is that water tank, 2 is that circulating pump, 3 is that water pipe, 4 is that power switch, 5 is that fixed support, 6 is that malleation safety valve, 7 is that hot water valve, 8 is that hot water outlet, 9 is that power line, 10 is that negative-pressure balancing valve, 11 is that collecting pipe, 12 is that check-valves, 13 is that cooling water inlet, 14 is that accompanying-heat cable, 15 heat-insulation layers, 16 are that articulation, 17 is a blade.

In Fig. 2-Fig. 4,18 is that tube connector, 19 is that band finned tube thermal-arrest bar, 20 is that transparency cover, 21 is that insulation material, 22 is incubation chamber.

In Fig. 5-Fig. 7,19 is band finned tube thermal-arrest bar, and 23 is the transparent vacuum pipe, and 24 is end cap, and other structures are identical with Fig. 1.

The specific embodiment

Embodiment 1, present embodiment such as Fig. 1-and shown in Figure 4, blade 17 is made up of tube connector 18, band finned tube thermal-arrest bar 19, transparency cover 20, insulation material 21, incubation chamber 22.Lay insulation material 21 in the incubation chamber 22, band finned tube thermal-arrest bar is arranged on above the insulation material, covers with transparency cover 20 on the incubation chamber, and the two ends of band finned tube thermal-arrest bar are connected to tube connector 18 respectively.The tube connector 18 at blade two ends is connected to form the shutter heat collector by articulation 16 and collecting pipe 11.Because connect with articulation, the inclination angle of blade 17 can be regulated easily.In the upper end of collecting pipe 11 negative-pressure balancing valve 10 is set, malleation safety valve 6 is set below collecting pipe 11.Fixed support 5 is fixed on the wall, and the shutter heat collector is installed on the fixed support 5.Water tank 1 is installed in indoor, the installation site preferably is higher than the shutter heat collector, the delivery port of water tank 1 links to each other with hot water valve, and the delivery port of water tank 1 links to each other with the lower end of a collecting pipe 11 by check-valves 12, and cold water inlet 13 is connected on the pipeline between check-valves 12 and the collecting pipe 11.The upper end of another root collecting pipe 11 links to each other with the water inlet of water tank by circulating pump 2.

Outdoor pipeline and shutter heat collector lay accompanying-heat cable 14, and accompanying-heat cable joins with power supply by power switch 4 and power line 9.Outdoor pipeline covering and heat insulating layer 15.

The course of work is as follows, loosening articulation, and the inclination angle of adjusting vane makes solar incident angle the best, fastening then articulation.Open hot water valve 7, cold water enters from cold water inlet 13, and this moment, check-valves 12 ended.Cold water enters the shutter heat collector, injects water tank by pipeline, closes hot water valve when hot water outlet 8 there are flowing out.

When water tank 1 was higher than the shutter heat collector, water can be realized natural circulation heating, and the water in the shutter heat collector is heated by daylight, and hot water rises and enters water tank, and water in water tank decline enters the shutter heat collector from the below.The circulating path of water is the shutter heat collector, and------------water tank 1 exports---check-valves 12---collecting pipe 11 lower ends---shutter heat collector to water tank 1 inlet to circulating pump 2 to collecting pipe 11.But if quicken circulation ON cycle pump 2.

When water tank 1 was lower than the shutter heat collector, ON cycle pump 2 carried out forced circulation.

In the winter time, if outdoor temperature is lower than zero centigrade, power turn-on switch 4, accompanying-heat cable 14 heatings prevent to freeze.

Being provided with malleation safety valve 6 and negative-pressure balancing valve 10 makes the shutter heat collector have antifreezing function.Pressure increases in the volumetric expansion when water freezing, shutter heat collector, and when pressure reached certain limit, the malleation safety valve was opened the step-down that discharges water, and the interior pressure of shutter heat collector is remained in the safe scope, and the shutter heat collector can not damage because of freezing.Pressure is lower than atmospheric pressure in volume-diminished during ice-out, shutter heat collector, negative-pressure balancing valve 10 unlatchings this moment, and air enters in the heat collector, makes the inside and outside pressure equilibrium of shutter heat collector, and the shutter heat collector can not damage when ice-out.

When hot water valve 7 was opened, cold water entered from cold water inlet 13, and this moment, check-valves 12 ended.Cold water enters the shutter heat collector, enters water tank by pipeline, and the hot water in the water tank is ejected, and hot water flows out from hot water outlet.When hot water valve 7 is closed, check-valves 12 conductings, system is in Natural Circulation or forced circulation state.

Embodiment 2, and as Fig. 5-shown in Figure 7, band finned tube thermal-arrest bar 19 is arranged in the transparent vacuum pipe 23, and with end cap 24 sealings, the tube connector 18 at band finned tube thermal-arrest bar 19 two ends passes the end cap center and links to each other with articulation at the two ends of transparent vacuum pipe 23.Band finned tube in each vacuum tube is connected to form the shutter heat collector by articulation and collecting pipe.Other structures and the course of work are identical with vane type shutter anti-freezing solar water heater shown in Figure 1.

Claims

1 one kinds of utility model shutter anti-freezing solar water heaters are by water tank (1), circulating pump (2), water pipe (3), power switch (4), fixed support (5), malleation safety valve (6), hot water valve (7), hot water outlet (8), power line (9), negative-pressure balancing valve (10), collecting pipe (11), check-valves (12), cooling water inlet (13), accompanying-heat cable (14), heat-insulation layer (15), articulation (16), blade (17), band finned tube thermal-arrest bar (19) and transparency cover (20), insulation material (21), incubation chamber (22) or transparent vacuum pipe (23), end cap (24) is formed, the tube connector that it is characterized in that the blade two ends is connected to form the shutter heat collector by articulation and collecting pipe, the shutter heat collector is installed on the fixed support, water outlet of water tank links to each other with hot water valve, water outlet of water tank links to each other by the lower end of check-valves with a collecting pipe, cold water inlet is connected on the pipeline between check-valves and the collecting pipe, and the upper end of another root collecting pipe links to each other with the water tank water inlet by circulating pump.

2 shutter anti-freezing solar water heaters according to claim 1, it is characterized in that described blade is made up of tube connector, band finned tube thermal-arrest bar, transparency cover, insulation material, incubation chamber, lay insulation material in the incubation chamber, band finned tube thermal-arrest bar is arranged on above the insulation material, cover with transparency cover on the incubation chamber, the two ends of band finned tube thermal-arrest bar are connected to tube connector respectively.

3 shutter anti-freezing solar water heaters according to claim 1 is characterized in that in the upper end of shutter heat collector the negative-pressure balancing valve being set, and in the lower end of shutter heat collector the malleation safety valve are set.

4 shutter anti-freezing solar water heaters according to claim 1, the conducting direction that it is characterized in that described check-valves are the direction of water outlet of water tank to cooling water inlet.

5 shutter anti-freezing solar water heaters according to claim 1 is characterized in that laying accompanying-heat cable on outdoor pipeline He in the thermal-arrest blade.

6 shutter anti-freezing solar water heaters according to claim 1 it is characterized in that described band finned tube thermal-arrest bar is arranged in the incubation chamber that is stamped transparency cover, or band finned tube thermal-arrest bar are arranged in the transparent vacuum pipe.