CN203349538U

CN203349538U - Split-type solar water heater with U-shaped pipe heat collector and embedded heat exchanger

Info

Publication number: CN203349538U
Application number: CN2013203344115U
Authority: CN
Inventors: 陈安祥
Original assignee: WEIHAI AUUHA NEW ENERGY CO Ltd
Current assignee: WEIHAI AUUHA NEW ENERGY CO Ltd
Priority date: 2013-06-12
Filing date: 2013-06-12
Publication date: 2013-12-18
Anticipated expiration: 2023-06-12

Abstract

The utility model relates to a split-type solar water heater with a U-shaped pipe heat collector and an embedded heat exchanger. The split-type solar water heater comprises a water tank and the heat collector, an inner container is arranged in the water tank, the embedded heat exchanger comprises the inner container and a spherical sealing head, the outer end of the heat exchanger is provided with an air exhaust opening, a medium circulation inlet and a medium circulation outlet respectively, the air exhaust opening is connected with an air exhaust valve, the medium circulation inlet and the medium circulation outlet penetrate through the outer wall of the water tank and are connected with a medium circulation pipeline, the inner container is provided with a water inlet pipe and a water outlet pipe which penetrate through the water tank and are connected with an external pipe, a vacuum pipe is arranged in a heat collector frame and is connected with the heat collector frame through a sealing ring, a stainless steel U-shaped pipe is inserted into the vacuum pipe, the upper end of the U-shaped pipe is provided with a hot pipe section, the lower end of the U-shaped pipe is provided with a cold pipe section, the two ends are connected with a medium heat collecting outlet and a medium heat collecting inlet respectively, the medium heat collecting outlet and the medium heat collecting inlet are connected with the medium circulation inlet and the medium circulation outlet of the water tank respectively, and a circulation loop is formed. The U-shaped pipe is added, and media is arranged in the U-shaped pipe, water does not pass through the vacuum pipe, so that scaling is avoided, and heat collecting efficiency cannot be affected even after long-time use.

Description

The splitting solar of a kind of U-shaped pipe heat collector and embedded heat exchanger

Technical field

The utility model relates to the solar water heater field, specifically the splitting solar of a kind of U-shaped pipe heat collector and embedded heat exchanger.

Background technology

At present, the Solar Enercy Fission Geyser water tank is mostly to adopt the pressure-bearing type structure, and heat exchange structure is divided into built-in heat exchange and external heat exchanger.Built-in heat exchanger mostly is welded structure, though the thermal efficiency improves, weld seam is perishable because of high pressure, high heat capacity, causes the medium pollution water tank that leaks outside; External heat exchanger water tank heat exchange area is large, and heat exchanger does not bear ambient pressure, but interlayer is difficult to enamel, makes its antiseptic property be difficult to guarantee, final heat exchanger damages, thereby causes whole water tank to be scrapped.On market, heat collector mainly adopts the thermal-arrest modes such as U-shaped pipe thermal-arrest, vacuum heat-pipe thermal-arrest and flat heat collecting now.The collecting efficiency of energy vacuum heat pipe collector is high, but, along with the increase vacuum of service life descends gradually, makes its collecting efficiency deficiency, and the flat plate collector heat leakage is large and be not suitable for cold district, and overall thermal efficiency is not high.Though U-shaped copper pipe thermal conductivity factor is high, during the copper pipe welding, easily snap, and also the easy oxidation of copper, easily stop up circulating line, the hot strength of copper is low, also easily occurs that fatigue crack leaks the problems such as medium.

Summary of the invention

In order to solve above existing problems, we disclose the splitting solar of a kind of U-shaped pipe heat collector and embedded heat exchanger, can greatly improve the service life of the thermal efficiency and the water tank of solar energy.

The utility model for achieving the above object, be achieved through the following technical solutions: the splitting solar of a kind of U-shaped pipe heat collector and embedded heat exchanger, comprise water tank and heat collector, it is characterized in that: inner bag is installed in water tank, inner bag and dome head form embedded heat exchanger, the outer end of heat exchanger arranges respectively exhaust outlet, medium circulation import and medium circulation outlet, exhaust outlet connects air bleeding valve, with medium circulation, outlet all is connected with the medium circulation pipeline through tank outer wall in the medium circulation import, inner bag is provided with water inlet pipe and outlet pipe, water inlet pipe, outlet pipe is connected with external pipe through water tank, mounting vacuum tube in collector frame, vacuum tube is connected with collector frame by sealing ring, the U-shaped pipe of vacuum tube interpolation stainless steel, the upper end of U-shaped pipe is the heat pipe section, lower end is cold leg, with the outlet of medium thermal-arrest, with the medium thermal-arrest, import is connected respectively at two ends, and the outlet of medium thermal-arrest exports and is connected with medium circulation with the medium circulation import of water tank respectively with the import of medium thermal-arrest, forms closed circuit.

The heat exchanger of separated type solar water tank of the present utility model is embedded heat exchange structure, heat exchanger is comprised of dome head and inner bag, heat exchange area is large, improved greatly the heat exchange efficiency of water tank, the whole enamel of heat exchanger and inner bag has been avoided the etching problem of water tank, the service life of greatly having improved water tank; Medium circulation outlet afterbody is made as bend pipe, and the medium circulation import is deep into heat exchanger inside, has accelerated the circulation rate of medium, greatly improves the heat exchange efficiency of water tank.

Heat collector of the present utility model is to insert the U-shaped pipe of stainless steel in ordinary vacuum tube, and U-shaped pipe heat pipe section is in upper end near the vacuum tube inwall, and cold leg is in lower end, and height of formation is poor, accelerates the circulation rate of medium, improves the water tank heat exchange efficiency.

The utility model is owing to taking said structure, and U-shaped pipe adopts stainless steel that following advantage is arranged: the U-shaped pipe of stainless steel is the argon arc welding welding, is difficult for snapping; Stainless steel is difficult for oxidation; Stainless steel tensile strength, be not prone to fatigue crack; Stainless steel has superior heat-insulating property.

Heat exchanger in U-shaped tube and tube road system, water tank forms the loop of sealing, by the heat exchange that loops of medium.This system can also realize: indirect heat exchange, bearing operation, and water quality is much cleaner; Bombing is without leakage, and system is the most stable; Longest-lived, the thermal efficiency is higher.

The in-built medium of U-shaped pipe of the utility model heat collector, do not leak water in vacuum tube, so also non flouling behaviour, the long-term use also can not affect the efficiency of its thermal-arrest.Pressure-bearing and non-pressure two kinds of use are arranged, and what the damaged operational effect of its complete machine that also can not affect of vacuum tube appearance, and this system once in a while adopted is the connection of rigidity, can be by the problem of the aging and leakage brought without silica gel sealing ring.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is U-shaped pipe transverse cross-sectional view of the present utility model;

In figure, be labeled as: 1. water tank, 2. inner bag, 3. heat exchanger, 4. exhaust outlet, 5. air bleeding valve, 6. medium circulation import, 7. medium circulation outlet, 8. medium circulation pipeline, 9. medium thermal-arrest outlet, 10. medium thermal-arrest import, 11. sealing ring, 12.U type pipe, 13. water inlet pipes, 14. outlet pipe, 15. vacuum tubes, 16. collector frame, 17. dome head, 18. heat pipe sections, 19. cold legs.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described further:

As Fig. 1, shown in Fig. 2, the utility model relates to the splitting solar of a kind of U-shaped pipe heat collector and embedded heat exchanger, comprise water tank and heat collector, it is characterized in that: the interior installation inner bag 2 of water tank 1, inner bag 2 forms embedded heat exchanger 3 with dome head 18, the outer end of heat exchanger 3 arranges respectively exhaust outlet 4, medium circulation import 6 and medium circulation outlet 7, exhaust outlet 4 connects air bleeding valve 5, medium circulation import 6 all is connected with medium circulation pipeline 8 through water tank 1 outer wall with medium circulation outlet 7, inner bag 2 is provided with water inlet pipe 13 and outlet pipe 14, water inlet pipe 13, outlet pipe 14 is connected with external pipe through water tank 1, the interior mounting vacuum tube 15 of collector frame 16, vacuum tube 15 is connected with collector frame 16 by sealing ring 11, the U-shaped pipe 12 of vacuum tube 15 interpolation stainless steel, U-shaped pipe 12 two ends connecting media thermal-arrest outlet 9 and medium thermal-arrest imports 10, the outlet 9 of medium thermal-arrest is connected with medium circulation outlet 7 with the medium circulation import 6 of water tank with medium circulation pipeline 8 hot channels respectively with medium thermal-arrest import 10, forms closed circuit.

Medium circulation described in the utility model exports 7 afterbodys and is made as bend pipe, and medium circulation import 9 is deep into heat exchanger 3 inside.U-shaped pipe heat pipe section 18 is in upper end near vacuum tube 15 inwalls, and cold leg 19 is in lower end.

When the utility model is used, first by cold water, by water inlet pipe, input in the inner bag of water tank, medium is after the heat collector heating, through circulation import and loop exit, in heat exchanger, circulated, heat exchanger passes to cold water by medium by the heat of collecting in heat collector, and cold water is heated, when temperature reaches setting value, medium stops circulation, then opens outlet pipe, just can obtain the needed hot water of people.

Claims

1. the splitting solar of a U-shaped pipe heat collector and embedded heat exchanger, comprise water tank and heat collector, it is characterized in that: inner bag is installed in water tank, inner bag and dome head form embedded heat exchanger, the outer end of heat exchanger arranges respectively exhaust outlet, medium circulation import and medium circulation outlet, exhaust outlet connects air bleeding valve, with medium circulation, outlet all is connected with the medium circulation pipeline through tank outer wall in the medium circulation import, inner bag is provided with water inlet pipe and outlet pipe, and water inlet pipe, outlet pipe are connected with external pipe through water tank; Mounting vacuum tube in collector frame, vacuum tube is connected with collector frame by sealing ring, the U-shaped pipe of vacuum tube interpolation stainless steel, the upper end of U-shaped pipe is the heat pipe section, lower end is cold leg, with the outlet of medium thermal-arrest, with the medium thermal-arrest, import is connected respectively at two ends, and the outlet of medium thermal-arrest exports and is connected with medium circulation with the medium circulation import of water tank respectively with the import of medium thermal-arrest, forms closed circuit.