CN102331098A

CN102331098A - Light-collecting tube

Info

Publication number: CN102331098A
Application number: CN201110140273A
Authority: CN
Inventors: 张其明
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-18
Filing date: 2011-05-18
Publication date: 2012-01-25

Abstract

The invention discloses a light-collecting tube and belongs to the field of heat exchange parts of solar cookers. The light-collecting tube is a heat exchange part which exchanges heat with the sun. The light-collecting tube is designed into three modes: a vacuum insulation light-collecting tube, an argon insulation light-collecting tube and a lengthened vacuum insulation light-collecting tube. The light-collecting tube is formed by sleeving a light-collecting core tube and a vacuum glass tube. After the space between the light-collecting core tube and the vacuum glass tube is sealed and vacuumized, argon is poured into the space to protect the inner glass of the vacuum glass tube from being damaged by the back radiation of the light-collecting core tube so that sunlight can be effectively transmitted by the vacuum glass tube. Heat-transfer media circulated in a system are convected in the light-collecting core tube to produce thermal stratification so that high-temperature heat-transfer media are floated upwards and returned to the system from an exit for recirculation. The light-collecting tube has the advantages of rapid temperature rise, no heat transfer to the outside and strong thermal insulation property. The collected heat energy can be fully transmitted to the indoor.

Description

The light harvesting pipe

The invention of light harvesting pipe belongs to solar energy stove heat-exchanging piece field.

Background technology: solar energy vacuum tube, solar energy vacuum tube can only be gathered sunlight heat energy for water heater.Developing light harvesting pipe is in order to gather the high temperature heat more than 300 ℃, and shifts the heat energy of gathering, and transfers to heat energy and indoorly puies forward common high temperature heat for solar energy stove, and solar energy stove just can be cooked in the kitchen.

Design concept: the light harvesting pipe is a heat-exchanging piece of gathering sunlight, it and sun heat-shift, light harvesting pipe; When concentrator and solar tracking mechanism formed daylighting mechanism, the light harvesting pipe can be warmed up to more than 500 ℃ very soon, because of the light harvesting pipe is to be exposed to occurring in nature; With several Baidu of circumstance of temperature difference; The light harvesting pipe can produce antiradiation, and temperature is descended, and the light harvesting pipe is just gathered less than high temperature heat.Be transported to indoor in order to let the light harvesting pipe can gather high temperature heat.Will take insulation to handle to the light harvesting pipe.It also is the technical problem that will solve.

Technical scheme:

1 vacuum heat-preserving light harvesting pipe: the structure of vacuum heat-preserving light harvesting pipe is that (Fig. 1, Fig. 2) (Fig. 3 Fig. 4), is inserted in the light harvesting core barrel in the glass-vacuum tube processing light harvesting core barrel again, uses the organic siliconresin adhesive, the opening part of seal glass vacuum pipe with glass-vacuum tube earlier.Make the space sealing between light harvesting core barrel and the glass-vacuum tube.Become vacuum heat-preserving light harvesting pipe (Fig. 5, Fig. 6).Vacuum heat-preserving light harvesting pipe in use, the light harvesting core barrel is warmed up to more than 500 ℃ very soon, the light harvesting core barrel can produce antiradiation, adds the pull of vacuum in the glass-vacuum tube.Make the glass-vacuum tube inner layer tube wall, destroyed by high temperature, the technical scheme of employing is, the space between light harvesting core barrel and glass-vacuum tube is evacuated earlier, and argon gas reinjects.Because the thermal conductivity of argon gas is low, can stop the antiradiation of light harvesting core barrel.Can reach the purpose of cover glass vacuum tube inner layer glass tube.(Fig. 5) course of work of vacuum heat-preserving light harvesting pipe is: vacuum heat-preserving light harvesting pipe in use; The heat transfer medium that systemic circulation is come gets into the light harvesting core barrel; In the light harvesting core barrel, produce convection current; Heat transfer medium in the light harvesting core barrel produces thermally stratified layer, and the high-temperature heat-transfer medium come-up is from the exit entering system recirculation of light harvesting core barrel.

2 argon gas insulations light harvesting pipe: argon gas insulation light harvesting pipe and vacuum heat-preserving light harvesting pipe institute difference be glass-vacuum tube make into glass bushing (Fig. 7, Fig. 8), the use argon gas do heat-insulation layer (Fig. 9, Figure 10).All the other are identical with vacuum heat-preserving light harvesting pipe.

3 lengthening vacuum heat-preserving light harvesting pipes: be light harvesting pipe for the design of solar energy heat-storage storehouse.The light harvesting pipe that need use because of the heat accumulation storehouse is many, and daylighting area is big.The structure of lengthening vacuum heat-preserving light harvesting pipe is.(Figure 13's light harvesting core barrel (Figure 11) Figure 14) is nested, and (Figure 12) fastens glass-vacuum tube with baffle ring with glass-vacuum tube.Become lengthening vacuum heat-preserving light harvesting pipe (Figure 15).The organic siliconresin adhesive seal is used at two between light harvesting core barrel and glass-vacuum tube.After vacuumizing, inject argon gas.The course of work of lengthening vacuum heat-preserving light harvesting pipe is: the heat transfer medium that systemic circulation is come is the bottom entering light harvesting core barrel from the light harvesting core barrel.By the backspace system recirculation of sunlight heating back from the top.Design from two and system's purpose of connecting is: the passive type scope of application that enlarges free convection.Light harvesting pipe and heat exchanger also can adopt the installation of passive type under level condition, because of passive type is a mounting means at first.

Applicating example: the use (Figure 16) of light harvesting pipe in solar energy list kitchen range.The use (Figure 17) of light harvesting pipe in the two kitchen ranges of solar energy.The use (Figure 18) of light harvesting pipe in light-collected solar water heater.The use of light harvesting pipe in the solar energy heat-storage storehouse (Figure 19, Figure 20)

The Figure of description explanation:

Fig. 1; It is light harvesting core barrel front view.

Fig. 2; It is light harvesting core barrel left view.

Fig. 3; It is the glass-vacuum tube front view.

Fig. 4; It is the glass-vacuum tube left view.

Fig. 5; It is vacuum heat-preserving light harvesting pipe front view.

Fig. 6; It is vacuum heat-preserving light harvesting pipe left view.

Fig. 7; It is the glass bushing front view.

Fig. 8; It is the glass bushing left view.

Fig. 9; It is argon gas insulation light harvesting pipe front view.

Figure 10; It is argon gas insulation light harvesting pipe left view.

Figure 11; Be the light harvesting core barrel figure of lengthening vacuum heat-preserving light harvesting pipe.

Figure 12; Be the baffle ring figure of lengthening vacuum heat-preserving light harvesting pipe.

Figure 13; It is the glass-vacuum tube front view of lengthening vacuum heat-preserving light harvesting pipe.

Figure 14; It is the glass-vacuum tube left view of lengthening vacuum heat-preserving light harvesting pipe.

Figure 15; Be lengthening vacuum heat-preserving light harvesting pipe figure.

Figure 16; Be the application drawing of light harvesting pipe in solar energy list kitchen range.

Figure 17; Be the application drawing of light harvesting pipe in the two kitchen ranges of solar energy.

Figure 18; Be the application drawing of light harvesting pipe in light-collected solar water heater.

Figure 19; Be that the light harvesting pipe is used front view in the solar energy heat-storage storehouse.

Figure 20; Be that the light harvesting pipe is used vertical view in the solar energy heat-storage storehouse.

Claims

The light harvesting pipe

1. the light harvesting pipe is and the heat-exchanging piece of sun heat-shift, and the light harvesting pipe is exposed to occurring in nature, gathers high temperature heat.Adopted the vacuum heat-insulation processing.Be nested by light harvesting core barrel and glass-vacuum tube and form, the glass-vacuum tube inner layer glass has adopted argon shield, can not destroyed by the high temperature antiradiation of light harvesting core barrel.Three kinds of forms have been designed, vacuum heat-preserving light harvesting pipe.Argon gas insulation light harvesting pipe.Lengthening vacuum heat-preserving light harvesting pipe.Be used for solar energy stove, light-collected solar water heater, solar energy heat-storage storehouse.Light harvesting pipe product is characterized in that 1. the light harvesting core barrel has been gathered sunlight heat energy, produces convection current in the light harvesting core barrel, and the high temperature heat come-up of heat transfer medium recycles from outlet entering system.2. adopt the glass-vacuum tube insulation, made sunlight heat energy can only get into the light harvesting core barrel, do not had the antiradiation heat radiation.Can effectively gather the sunlight high temperature heat.3. adopted argon shield glass-vacuum tube inner layer glass.The antiradiation heat energy that can effectively stop the light harvesting core barrel is to the destruction of glass-vacuum tube inner layer glass.The multiple product that 4. can be used for solar energy is done and is gathered the high temperature heat use, like solar energy stove, and water heater.Products such as heat accumulation storehouse.
2. product as claimed in claim 1 is characterized in that, has designed lengthening vacuum heat-preserving light harvesting pipe, can enlarge the mounting condition of free convection circulation, has increased the installation environment of passive type.