CN203215995U - Split-type solar water heating system of built-in serpentine enamel heat exchanger - Google Patents

Abstract

The utility model relates to a split-type solar water heating system with a built-in snake-shaped enamel heat exchanger, which includes a water tank and a heat collector, and is characterized in that: an inner tank is installed in the water tank, and one end of the inner tank is equipped with a built-in snake-shaped enamel The heat exchanger is equipped with a horizontal partition in the middle, and the outer end of the heat exchanger is respectively provided with an exhaust port, a medium circulation inlet and a medium circulation outlet, and the inner tank is provided with a water inlet pipe and a water outlet pipe. The hot and cold pipes and the heat collecting pipes, the heat collecting and cold pipes are connected at the tail of the heat collecting pipes, the ends of the two are equipped with a medium heat collecting outlet and a medium heat collecting inlet, the vacuum tube is connected with the heat collecting pipe through a sealing ring, and the glass heat absorbing pipe is passed through a metal The support is fixed inside the vacuum tube. The utility model increases the heat exchange area, accelerates the circulation speed of the medium, and improves the heat collection efficiency of the water heater.

Description

A split solar water heating system with a built-in serpentine enamel heat exchanger

technical field

The utility model relates to the field of solar water heaters, in particular to a split solar water heating system with a built-in serpentine enamel heat exchanger.

Background technique

At present, split solar water heaters all adopt a pressure-bearing structure, and the heat exchange structure is divided into built-in heat exchange and external heat exchange. The built-in heat exchanger is a stainless steel heat exchanger with high heat exchange efficiency, but it is usually made of stainless steel welding and has corrosion problems, which greatly reduces the service life of the water tank, and eventually the heat exchanger is damaged, resulting in the scrapping of the entire water tank; external heat exchange The water tank has a large heat exchange area, and the heat exchanger does not bear external pressure, but the heat exchange medium will also cause corrosion to the interlayer heat exchanger formed on the outside of the water tank liner and the inside of the heat exchanger, resulting in the scrapping of the entire water tank. The heat collection methods currently used are U-shaped tube collectors, vacuum heat pipe collectors, and flat plate collectors. U-shaped tube collectors have insufficient heat absorption due to the small external area of the U-shaped tubes, which causes the heat in the vacuum tube to be lost and the overall heat collection efficiency is low, and most of them are welded and have corrosion problems; The thermal efficiency is high, but with the increase of the service life, the vacuum degree gradually decreases, which makes the heat collection efficiency insufficient. The flat plate collector has a large heat loss and is not suitable for cold regions, and the overall thermal efficiency is not high.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a split solar hot water system with a built-in serpentine enamel heat exchanger that can greatly improve the heat gain efficiency of solar energy and the service life of the water tank.

The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a split type solar water heating system with a built-in serpentine enamel heat exchanger, including a water tank and a heat collector, and is characterized in that an inner tank is installed in the water tank One end of the liner is equipped with a built-in serpentine enamel heat exchanger, and a horizontal partition is arranged in the middle of the heat exchanger. The outer end of the heat exchanger is respectively equipped with an exhaust pipe, a medium circulation inlet and a medium circulation outlet, and the medium circulation inlet extends At the bottom of the heater, the exhaust pipe is provided with an exhaust port. The medium circulation inlet and medium circulation outlet respectively pass through the outer wall of the water tank to connect with the medium circulation pipe. The inner tank is provided with a water inlet pipe and a water outlet pipe. The atmosphere is connected; the heat collector is installed with a heat collecting cold pipe and a heat collecting pipe, and the heat collecting cold pipe is connected to the tail of the heat collecting pipe, and the ends of the heat collecting pipe and the heat collecting cold pipe are provided with a medium heat collecting outlet and a medium heat collecting inlet , the vacuum tube communicates with the heat collecting tube through a sealing ring, and the glass heat absorbing tube is fixed in the vacuum tube through a metal support.

Because the utility model adopts the above structure, the heat exchanger is an enamel serpentine heat exchanger structure with a large heat exchange area; the inner and outer wall enamel solves the corrosion problem of long-term use; the medium circulation inlet pipe extends to the bottom of the heat exchanger, and the heat exchanger There is a horizontal partition in the middle, which increases the circulation area of the medium, and solves the problem of excessive temperature difference between the end and the middle of the water tank and the defect of small heat exchange area of ordinary built-in heat exchangers; the vacuum tube is equipped with medium and built-in glass heat-absorbing tube It can fully absorb the heat of the vacuum tube, and the heat-collecting cold pipe is connected to the end of the heat-collecting pipe, which greatly increases the temperature difference of the circulating medium, accelerates the circulation speed of the medium, and effectively transfers the heat of the heat collector to the water tank. Greatly improved the heat collection efficiency of the water heater.

Description of drawings

Fig. 1 is a structural representation of the utility model.

The marks in the figure are: 1. water tank, 2. liner, 3. exhaust pipe, 4. exhaust port, 5. heat exchanger, 6. medium circulation inlet, 7. medium circulation outlet, 8. medium circulation pipe, 9. Medium heat collector outlet, 10. Medium heat collector inlet, 11. Water inlet pipe, 12. Water outlet pipe, 13. Glass heat absorbing pipe, 14. Metal support, 15. Vacuum tube, 16. Heat collector, 17. Sealing ring , 18. heat collecting tube, 19. heat collecting cold pipe, 20. horizontal clapboard.

Detailed ways

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

As shown in Figure 1, the utility model relates to a split-type solar water heating system with a built-in serpentine enamel heat exchanger, which is provided with a water tank and a heat collector, and is characterized in that an inner tank 2 is installed in the water tank 1, One end of the liner 2 is equipped with a built-in serpentine enamel heat exchanger 5, and a horizontal partition 20 is arranged in the middle of the heat exchanger 5. The outer end of the heat exchanger 5 is respectively provided with an exhaust pipe 3, a medium circulation inlet 6 and a medium circulation outlet 7 , the medium circulation inlet 6 extends to the bottom of the heat exchanger, the exhaust pipe 3 is provided with an exhaust port 4, the medium circulation inlet 6 and the medium circulation outlet 7 respectively pass through the outer wall of the water tank 1 and are connected to the medium circulation pipe 8, and the inner tank 2 is provided with The water inlet pipe 11 and the water outlet pipe 12, the water inlet pipe 11 and the water outlet pipe 12 pass through the water tank 1 and communicate with the atmosphere; the heat collecting cold pipe 19 and the heat collecting pipe 18 are installed in the described heat collector 16, and the heat collecting cold pipe 19 is connected to the collector. The afterbody of heat pipe 18, the end of heat collecting pipe 18 and heat collecting cold pipe 19 are provided with medium heat collecting outlet 9 and medium heat collecting inlet 10, vacuum tube 15 is connected with heat collecting pipe 18 through sealing ring 17, and glass heat absorbing pipe 13 passes metal The support 14 is fixed inside the vacuum tube 15 .

When the utility model is used, the cold water is firstly input into the inner tank of the water tank through the water inlet pipe, and after the medium is heated by the heat collector, the circulation flow is carried out in the heat exchanger through the circulation inlet and the circulation outlet, and the heat exchanger passes the heat collection through the medium. The heat collected in the device is transferred to the cold water to heat the cold water. When the temperature reaches the set value, the medium stops circulating, and then the outlet pipe is opened to get the hot water that people need.

Claims (1)

1. the separated type solar hot-water heating system of a built-in snakelike enamel heat exchanger, comprise water tank and heat collector, it is characterized in that: inner bag is installed in the described water tank, inner bag one end is equipped with built-in snakelike enamel heat exchanger, be provided with horizontal baffle in the middle of the heat exchanger, the outer end of heat exchanger arranges blast pipe respectively, medium circulation import and medium circulation outlet, the medium circulation import reaches the heat exchanger bottom, blast pipe is provided with exhaust outlet, the outlet of medium circulation import and medium circulation is passed tank outer wall respectively and is connected with the medium circulation pipeline, inner bag is provided with water inlet pipe and outlet pipe, water inlet pipe, outlet pipe passes water tank and communicates with atmosphere; The cold pipe of thermal-arrest and thermal-collecting tube are installed in the described heat collector, the cold pipe of thermal-arrest is connected the afterbody of thermal-collecting tube, the cold tube end of thermal-collecting tube and thermal-arrest is provided with the outlet of medium thermal-arrest and the import of medium thermal-arrest, vacuum tube is connected with thermal-collecting tube by sealing ring, and glass heat absorbing pipe is fixed in the vacuum tube by metallic support.

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