CN201003872Y

CN201003872Y - Vacuum heat-collecting pipe of solar water heater

Info

Publication number: CN201003872Y
Application number: CNU2007200335994U
Authority: CN
Inventors: 吴际云
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-13
Filing date: 2007-01-13
Publication date: 2008-01-09
Anticipated expiration: 2017-01-13

Abstract

The utility model discloses a new vacuum heat tube of solar heaters. The heat tube(10) consists of an inner tube and an outside tube(1, 2), with a vacuum layer(3) arranged between the inner tube and outside tube(1, 2. The utility model is characterized in that: the heat tube consisting of an inner tube and an outside tube(1, 2) is an unsymmetrical U shape; the lower tube port of the U-type tube is a cold water inlet(4), and the high tube port of the U-type tube is a hot water outlet(5); a heat sinking layer is pasted on the wall of the inner tube(1), a lightreflecting layer is pasted on the sun-facing inner wall of outside tube(2). The unsymmetrical U-shaped tube of the utility model is beneficial to the convection of the cold water and hot water and the heating time is therefore shortened; the lightreflecting layer on the inner wall of the outside tube can increase the heat efficiency as well as saves the lightreflecting plate of the solar heater; the wind area is reduced and the installation safety factor is increased.

Description

The new-type vacuum heat collection pipe of solar water heater

Technical field

The utility model relates to vacuum heat collection pipe, is specifically related to the new-type vacuum heat collection pipe of solar water heater.

Background technology

At present, the vacuum heat collection pipe of solar water heater is commonly inner and outer pipes and constitutes, and applies heat-sink shell on the tube wall, and the thermal-collecting tube arranged type is installed on the water tank of solar water heater, this kind thermal-collecting tube hot and cold water with pipe during convection current mutual resistance long heat time heating time, the thermal-collecting tube no-reflection layer so that the thermal efficiency are not high.

Summary of the invention

The purpose of this utility model is: a kind of new-type vacuum heat collection pipe of solar water heater is provided, and cold water enters from an end of thermal-collecting tube, and hot water flows out from the other end of thermal-collecting tube, and hot and cold water flows but not mutual resistance with pipe, shortens heat time heating time, improves the thermal efficiency.

Technical solution of the present utility model is: this thermal-collecting tube is made of inner and outer pipes, it between the inner and outer pipes vacuum layer, it is characterized in that: the asymmetric U type of the whole one-tenth of the thermal-collecting tube that inner and outer pipes constitutes, the low mouth of pipe of U type pipe one side is a cold water inlet, the high mouth of pipe of U type pipe opposite side is the flow of hot water outlet, on the tube wall of interior pipe, apply heat-sink shell, at the inwall sunny slope coating reflector layer of outer tube.

Water tank bottom at solar water heater has two vacuum pumping thermal-collecting tube installing holes, the spacing of two row's installing holes is the width of U type pipe, peg graft respectively in every row's the respective aperture in the cold and hot mouth of a river of U type pipe, cold water inlet is positioned at the bottom of the water tank, and hot water outlet stretches into water tank and is arranged in water tank and is higher than cold water inlet; Or at the bottom of the water tank of solar water heater, open single installing hole, the installing hole spacing is the width of U type pipe, the cold water inlet of U type pipe is pegged graft wherein in the installing hole, the hot water outlet of U type pipe is pegged graft in another adjacent installing hole, and hot water outlet stretches into water tank and is arranged in water tank and is higher than cold water inlet; During use, cold water enters thermal-collecting tube from the cold water inlet of the low end of the mouth of pipe, and hot water flows out inlet water tank from the hot water outlet of the high end of the mouth of pipe.

The utlity model has following advantage: 1. asymmetric U type pipe helps the hot and cold water convection current, has shortened heat time heating time; 2. the inwall sunny slope of outer tube applies reflector layer, improves the thermal efficiency; 3. can save the reflector of solar water heater, reduce wind area and improve safety coefficient.

Description of drawings

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

Fig. 2 is the scheme of installation of Fig. 1.

Among the figure: 1. pipe, 2. outer tube, 3. vacuum layer, 4. cold water inlet, 5. hot water outlet, 6. heat-sink shell, 7. reflector layer, 8. water tank, 9. installing hole, 10. thermal-collecting tube in.

The specific embodiment

As shown in Figure 1, this thermal-collecting tube is made of inner and outer pipes 1,2, be vacuum layer 3 between the inner and outer pipes 1,2, it is characterized in that: the asymmetric U type of the whole one-tenth of the thermal-collecting tube that inner and outer pipes 1,2 constitutes, the low mouth of pipe of U type pipe one side is a cold water inlet 4, the high mouth of pipe of U type pipe opposite side is a hot water outlet 5, applies heat-sink shell 6 on the tube wall of interior pipe 1, at the inwall sunny slope coating reflector layer 7 of outer tube 2.

As shown in Figure 2, have two in the water tank 8 of solar water heater and bottom and arrange in a row heat pipe installing hole 9, the spacing of two row's installing holes is the width of U type pipe, peg graft respectively in the corresponding mounting hole of every row in the cold and hot mouth of a river of U type pipe, cold water inlet 4 is positioned at the bottom of water tank 8, and hot water outlet 5 stretches into water tank 8 and is arranged in water tank and is higher than cold water inlet 4; Or open single installing hole 9 in the bottom of the water tank 8 of solar water heater, the installing hole spacing is the width of U type pipe, the cold water inlet 4 of U type pipe is pegged graft wherein in the installing hole, the hot water outlet 5 of U type pipe is pegged graft in another adjacent installing hole, and hot water outlet 5 stretches into water tank 8 and is arranged in water tank and is higher than cold water inlet 4; During use, cold water enters thermal-collecting tube 10 from the cold water inlet 4 of the low end of the mouth of pipe, and hot water flows out inlet water tank 8 from the hot water outlet of the high end of the mouth of pipe.

Claims

1. the new-type vacuum heat collection pipe of solar water heater, this thermal-collecting tube (10) is made of inner and outer pipes (1,2), be vacuum layer (3) between the inner and outer pipes (1,2), it is characterized in that: the asymmetric U type of the whole one-tenth of the thermal-collecting tube that inner and outer pipes (1,2) constitutes, the low mouth of pipe of U type pipe one side is cold water inlet (4), the high mouth of pipe of U type pipe opposite side is hot water outlet (5), applies heat-sink shell (6) on the tube wall of interior pipe (1).

2. the new-type vacuum heat collection pipe of solar water heater according to claim 1 is characterized in that: at the inwall sunny slope coating reflector layer (7) of outer tube (2).