A light source (10) comprises a tubular glass heat pipe (12) having a given inside diameter ID. A tubular fiberglass wick (14) is positioned within the glass heat pipe (12). The fiberglass wick (14) has an outside diameter OD substantially equal to the given inside diameter ID and has a substantially centrally located open chamber (16) extending the length thereof. A quantity of an evaporable-condensable medium (17) is provided within the glass heat pipe (12) and a metal cap (18) selected from the group of glass-sealing metals and alloys is fixed to a proximal end (20) of the glass heat pipe (12). Heat dissipaters (22) are fixed to the distal end (24) of the heat pipe (12) and a light emitting diode (26) is fixed to the metal cap (18). Power conducting traces (28) are formed with the heat pipe (12) and are electrically connected to the light emitting diode (26). A lamp (40) can be formed with a plurality of the light sources (10).

Led source with an integrated heat pipe

The invention discloses a solar water heater collector pipe with high strength and high heat efficiency. The solar water heater collector pipe with high strength and high heat efficiency comprises a vacuum pipe and a collector pipe. The vacuum pipe comprises a polymethyl methacrylate pipeline; a flexible transparent protective film uniformly covers the outer side of the polymethyl methacrylate pipeline; the collector pipe comprises a metal heat conducting pipeline; support rods are fixedly connected between the metal heat conducting pipeline and the polymethyl methacrylate pipeline; a heat absorbing coating coats the outer side of the metal heat conducting pipeline; a tempered glass protective layer is arranged on the outer side of the heat absorbing coating; heat conducting shunting pipe pieces are arranged on the inner wall of the metal heat conducting pipeline; the vacuum pipe is arranged on a collector pipe installation base. The solar water heater collector pipe with high strength and high heat efficiency provided by the invention is simple in structure, selected materials are reasonable, and not only can the collector pipe be prevented from being damaged, but also the heat efficiency of the collector pipe can be improved.

Solar water heater collector pipe with high strength and high heat efficiency

LED light source having glass heat pipe with fiberglass wick

An all-glass evacuated rectangular planar heat collection and storage tube adopting dark liquid for heat absorption and storage comprises a cover glass tube, a heat collection and storage section of the rectangular planar heat collection and storage glass tube, a support fixed elastic card of a getter, an exhaust nozzle, a dark liquid heat transfer medium and a heat release section; the base tube of the rectangular planar heat collection and storage glass tube of the invention is a rectangular glass tube; tube heads at both ends of the rectangular glass tube are processed into round glass tube heads; the manufactured rectangular glass tube with both ends sealed is internally provided with an expansion chamber layer; the tube head at one end of the cover glass tube is uniformed and sintered and that at the other end is sealed; the cover glass tube is sheathed with the rectangular planar round glass collector tube; by annular reducing, soldering and sealing by glass, the cover glass tube mouth is necked and sealed with the mouth of the rectangular planar round glass collector tube as a whole to form a round sealed single-glass tube; after the interlayer of internal and external glass tubes is vacuumized, the exhaust nozzle is sealed by glass and the getter is evaporated to manufacture the all-glass evacuated rectangular planar heat collection and storage tube adopting the dark liquid for heat absorption and storage. The tube enjoys high heat absorption efficiency and long service life and can utilize scattered light.

All-glass evacuated rectangular planar heat collection and storage tube adopting dark liquid for heat absorption and storage

The invention relates to a structure for reducing flexibility deformation of an inner metal tube of a solar moderate-high-temperature heat collection tube.The structure is characterized in that at least one supporting device is arranged between the inner metal tube of the heat collection tube and an outer glass tube; each supporting device comprises a sleeve ring (1) and a plurality of elastic supports (2), wherein the sleeve ring (1) and the inner metal tube (3) are coaxially arranged, the sleeve ring (1) is fixed to the inner metal tube (3), the elastic supports (2) are supported by the inner wall of the outer glass tube (4), and the sleeve ring (1) is connected with the elastic supports (2).The structure has the advantages that manufacturing cost is low, deformation of the inner metal tube is reduced, and notable increase of heat collection efficiency of the heat collection tube is effectively guaranteed.

Structure for reducing flexibility deformation of inner metal pipe of solar moderate-high-temperature heat collection tube

This invention relates to a glass vacuum heat pipe type solar heat collection pipe, which belongs to the field of the use of solar energy. The invention includes a glass vacuum heat collection pipe, a joining pipe, an airtight space, and a liquid heat transfer medium, wherein the volume of liquid heat transfer medium takes up 0.03%-10% of airtight space. The length of the condenser section of glass vacuum heat pipe type solar heat collection pipe is 40mm-300mm. The joining pipe has a protrusion and a pressure-limit thin wall. A plural of annular support members are arranged between an inner glass pipe and a cover glass pipe in axial direction to decrease the relative length of inner glass pipe. The invention has features as follow: a simple manufacture process, security and safety of use, good antifreezing performance, low vacancy-shining temperature and good performance of heat transfer etc.

Glass vacuum heat pipe type solar heat collection pipe

The utility model relates to a vacuum solar heat collecting pipe of the full glass heat-pipe type, which belongs to the technical field of solar heat utilization The utility model comprises a full glass vacuum solar heat collecting pipe, a butted pipe, a closed space and a heat-transfer working medium, and is characterized in that the volume of the heat-transfer working medium takes over 003% and below 01% in the volume of the closed space The heat-transfer working medium is a propylene glycol aqueous solution of 0-30% or a mineral acid or brine solution of 0-20%; the mineral acid or brine solution is the aqueous solution of potassium dichromate, potassium sulfate, sulphuric acid and phosphoric acid, or the aqueous solution of potassium dichromate, potassium sulfate, ammonium sulfate and ammonium phosphate, or the aqueous solution of potassium dichromate, potassium sulfate, sulphuric acid, phosphoric acid, ammonium sulfate and ammonium phosphate The outer wall of the inner glass pipe of the full glass vacuum solar heat collecting pipe is provided with one or more metal support rings along the axial direction The utility model has the characteristics of safety and little damage in the process of installation and transport

Full glass heat-pipe type vacuum solar energy heat collector

Present invention relates to a all glass heat tube type vacuum solar heat collection pipe, belongs to solar energy heat utilization technology field. Said invention includes all glass vacuum solar heat collection pipe, opposite joint pipe, enclosed space heat transfer working medium. It features heat transfer working medium volume occupied enclosed space volume ratio greater than 0.03 per cent and less than 0.1 per cent, said heat transfer working medium being 0 to 30 per cent propylene glycol water solution or 0 to 20 per cent mineral acid, brine solution, said mineral acid, brine solution being potassium dichromate, potassium sulfate, sulfuric acid and phosphatic water solution, or potassium dichromate, potassium sulfate, ammonium sulfate and ammonium phosphate water solution, or potassium dichromate, potassium sulfate, sulfuric acid, phosphoric acid, ammonium sulfate and ammonium phosphate water solution, inner glass tube outer wall outer wall of said all glass solar heat collection tube having one or more than one support ring along axial direction. Said invention is safety, reliable, unease damage in installing and transportation process.

Chunmei Li

Papers

Glass vacuum heat pipe type solar heat collection pipe

Full glass heat-pipe type vacuum solar energy heat collector

Full-glass heat-pipe type vacuum solar heat-collecting pipe