CN208620624U - A kind of direct insertion evacuated collector tube - Google Patents

Abstract

The utility model discloses direct insertion evacuated collector tubes a kind of in solar vacuum heat-collecting pipe technical field, including solar energy heating outer tube, solar energy heating inner tube and closing connection ring gate, the heat that solar energy heating inner tube is absorbed is transmitted to the lateral wall of outlet outer tube sleeve through heat transmission fin, heated liquid evaporation in outlet outer tube sleeve, steam enters in the vapor chamber of water tank, it is heated water in water tank, steam is subjected to that Water in Water Tanks is cooling to condense into liquid again and flow back into tube core along feed liquor inner tube, complete one cycle, it is staggeredly fixedly connected by arc convex with triangular hill, there is gap between the two, when tube core expands with heat and contract with cold, tube core can squeeze extrudable connection ring, there are extruding forces between extrudable connection ring and closing connection ring at this time, and the gap between arc convex and triangular hill can be with extruding force And change, it is thus compensated expanding with heat and contract with cold for tube core, direct insertion evacuated collector tube is effectively prevent to lose heat because of leakproofness difference.

Description

A kind of direct insertion evacuated collector tube

Technical field

The utility model relates to solar vacuum heat-collecting pipe technical field, specific field is a kind of direct insertion vacuum heat-collecting Pipe.

Background technique

Existing direct insertion thermal-collecting tube, due to easy for installation, technical process is simple and is widely used, it is true by full glass Empty solar energy heat collection pipe absorbs solar energy, it is all-glass construction to all glass vacuum heat collection tube of solar energy, mainly by inside and outside dual Pipe forms, and is in vacuum state between two pipes, plays the role of reducing heat loss, inner tube outer surface therein is plated with selective absorbing Film, for absorbing solar radiation thermal energy, thermal energy passes to the liquid inside superconduction tube core, working fluid moment by aluminum fin-stock Evaporation, communicates the temperature to tube core top, thus the water in water tank is heated, while tube core top boil-off gas is by water tank Middle water is cooling to condense into liquid again, completes one cycle, existing direct insertion thermal-collecting tube in heat transfer process, tube core with it is complete Easily there is thermal expansion and contraction in glass vacuum heat collection tube of solar energy junction, and direct insertion thermal-collecting tube is caused to lose because of leakproofness difference Heat.

Utility model content

The purpose of this utility model is to provide a kind of direct insertion evacuated collector tubes, to solve to propose in above-mentioned background technique The problem of.

To achieve the above object, the utility model provides the following technical solutions: a kind of direct insertion evacuated collector tube, including too Positive energy thermal-arrest outer tube, the inside of the solar energy heating outer tube are equipped with solar energy heating inner tube, the solar energy heating inner tube Lateral wall is coated with solar absorbing film, between the solar energy heating outer tube and the inner sidewall upper end of the solar energy heating inner tube It is fixedly connected with closing connection ring, is in vacuum state, institute between the solar energy heating outer tube and the solar energy heating inner tube The inside for stating solar energy heating inner tube, which is run through, is equipped with tube core, and the tube core includes outlet outer tube sleeve and feed liquor inner tube, the feed liquor Inner tube is located at the inside of the outlet outer tube sleeve, the inner sidewall of the lateral wall of the outlet outer tube sleeve and the closing connection ring it Between be equipped with extrudable connection ring, the inner sidewall of the closing connection ring is uniformly provided with arc convex, the extrudable connection ring Lateral wall is uniformly provided with the triangular hill being used cooperatively with the arc convex, the arc convex and the triangular hill It is staggeredly fixedly connected, is uniformly provided with and leads between the inner sidewall of the solar energy heating inner tube and the lateral wall of the outlet outer tube sleeve Hot fin, the heat transmission fin include left hollow annular fin and right hollow annular fin, the left hollow annular fin and institute The inner cavity for stating right hollow annular fin is uniformly provided with rectangular radiating fin respectively, and the left hollow annular fin and the right side are hollow The lateral wall of cyclic annular fin is contacted with the inner sidewall of the solar energy heating inner tube, the left hollow annular fin and the right side The inner sidewall of hollow annular fin is contacted with the lateral wall of the outlet outer tube sleeve.

Preferably, the arc convex and the triangular hill are made of high-temperature resistant rubber.

Preferably, the structure and shape of the left hollow annular fin and the right hollow annular fin are all the same.

Preferably, the setting number of the rectangular radiating fin is 3 to 5.

Compared with prior art, the utility model has the beneficial effects that a kind of direct insertion evacuated collector tube, convex by arc It rises and is staggeredly fixedly connected with triangular hill, there is gap between the two, when tube core expands with heat and contract with cold, tube core can squeeze can It is press-connected ring, is can extrude between connection ring and closing connection ring at this time there are extruding force, and arc convex and triangular hill Between gap can change with extruding force, thus compensated expanding with heat and contract with cold for tube core, effectively prevent direct insertion vacuum collection Heat pipe loses heat because of leakproofness difference.

Detailed description of the invention

Fig. 1 is the main structure main view sectional view of the utility model；

Fig. 2 is the arc convex and triangular hill main view sectional view of the utility model；

Fig. 3 is the solar energy heating outer tube, solar energy heating inner tube, tube core and heat transmission fin top view cross section of the utility model Figure.

In figure: 1- solar energy heating outer tube, 2- solar energy heating inner tube, 3- closing connection ring, 4- tube core, outside 41- outlet The extrudable connection ring of pipe sleeve, 42- feed liquor inner tube, 5-, 6- arc convex, 7- triangular hill, 8- heat transmission fin, the left side 81- are hollow The right hollow annular fin of cyclic annular fin, 82-, the rectangular radiating fin of 83-.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of direct insertion evacuated collector tube, including the sun The inside of energy thermal-arrest outer tube 1, the solar energy heating outer tube is equipped with solar energy heating inner tube 2, the solar energy heating inner tube Lateral wall is coated with solar absorbing film, between the solar energy heating outer tube and the inner sidewall upper end of the solar energy heating inner tube Be fixedly connected with closing connection ring 3, between the solar energy heating outer tube and the solar energy heating inner tube be in vacuum state, two It is in vacuum state between pipe, can plays the role of reducing heat loss, the heat of solar radiation is absorbed by the solar absorbing film Can, so that the solar energy heating inner tube is gathered more heats and transmitted, the inside of the solar energy heating inner tube is passed through Be equipped with tube core 4, the tube core includes outlet outer tube sleeve 41 and feed liquor inner tube 42, the feed liquor inner tube lower ending opening, it is described into Liquid inner tube is located at the inside of the outlet outer tube sleeve, the inner sidewall of the lateral wall of the outlet outer tube sleeve and the closing connection ring Between be equipped with extrudable connection ring 5, the closing connection ring is to the solar energy heating outer tube and the solar energy heating inner tube Between play sealing process, while connection function is played to the extrudable connection ring, the inner sidewall of the closing connection ring is equal Even to be equipped with arc convex 6, the lateral wall of the extrudable connection ring is uniformly provided with the triangle being used cooperatively with the arc convex Shape protrusion 7, the arc convex and the triangular hill are staggeredly fixedly connected, and there is gap between the two, when the tube core When expanding with heat and contract with cold, the tube core can squeeze the extrudable connection ring, the extrudable connection ring described at this time and the closing There are extruding forces between connection ring, and the gap between the arc convex and the triangular hill can become with extruding force Change, is thus compensated expanding with heat and contract with cold for the tube core, the inner sidewall of the solar energy heating inner tube and the outlet outer tube Heat transmission fin 8 is uniformly provided between the lateral wall of set, the heat transmission fin includes left hollow annular fin 81 and right hollow annular The inner cavity of fin 82, the left hollow annular fin and the right hollow annular fin is uniformly provided with rectangular radiating fin respectively 83, inside of the lateral wall of the left hollow annular fin and the right hollow annular fin with the solar energy heating inner tube Outside of the inner sidewall of wall contact, the left hollow annular fin and the right hollow annular fin with the outlet outer tube sleeve Wall contact, the heat that the solar energy heating inner tube is absorbed is through the left hollow annular fin and the right hollow annular fin Lateral wall be transmitted to the rectangular radiating fin, heat is in the left hollow annular fin and the right hollow annular fin The interior intracavitary inner sidewall through the left hollow annular fin and the right hollow annular fin is transmitted to the outlet outer tube sleeve Lateral wall, the heated liquid evaporation in the outlet outer tube sleeve, steam enter in the vapor chamber of water tank, make in water tank water by Heating, steam are subjected to that Water in Water Tanks is cooling to condense into liquid again and flow back into the tube core along the feed liquor inner tube, complete One cycle.

Specifically, the arc convex and the triangular hill are made of high-temperature resistant rubber, the arc convex It is staggeredly fixedly connected with the triangular hill, there is gap between the two, when the tube core expands with heat and contract with cold, the pipe Core can squeeze the extrudable connection ring, there are extruding force between the extrudable connection ring described at this time and the closing connection ring, And the gap between the arc convex and the triangular hill can change with extruding force, thus make the heat expansion of the tube core Shrinkage is compensated.

Specifically, the structure and shape of the left hollow annular fin and the right hollow annular fin are all the same, institute The inner sidewall for stating left hollow annular fin and the right hollow annular fin jointly surrounds the lateral wall of the outlet outer tube sleeve Firmly, the lateral wall of the left hollow annular fin and the right hollow annular fin jointly will be in the solar energy heating inner tube Side wall surrounds, and guarantees higher heat transfer efficiency.

Specifically, the setting number of the rectangular radiating fin is 3 to 5, the heat transmission fin heat transfer is further enhanced Efficiency, while avoiding the overall weight of the heat transmission fin excessively high as far as possible.

Working principle: it is in vacuum state between solar energy heating outer tube and solar energy heating inner tube, reduction heat waste can be played The effect of mistake is absorbed the thermal energy of solar radiation by solar absorbing film, solar energy heating inner tube is allow to gather more heat Amount is transmitted, lateral wall of the heat that solar energy heating inner tube is absorbed through left hollow annular fin and right hollow annular fin It is transmitted to rectangular radiating fin, heat is intracavitary through left hollow annular wing in left hollow annular fin and right hollow annular fin The inner sidewall of piece and right hollow annular fin is transmitted to the lateral wall of outlet outer tube sleeve, and the heated liquid in outlet outer tube sleeve steams Hair, steam enter in the vapor chamber of water tank, are heated water in water tank, and steam is subjected to Water in Water Tanks cooling and condenses again It is flow back into tube core at liquid along feed liquor inner tube, completes one cycle.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of direct insertion evacuated collector tube, including solar energy heating outer tube (1), it is characterised in that: outside the solar energy heating The inside for managing (1) is equipped with solar energy heating inner tube (2), and the lateral wall of the solar energy heating inner tube (2) is coated with solar absorption Film is fixedly connected with closing between the solar energy heating outer tube (1) and the inner sidewall upper end of the solar energy heating inner tube (2) Connection ring (3) is in vacuum state, the sun between the solar energy heating outer tube (1) and the solar energy heating inner tube (2) The inside that hot inner tube (2) can be collected, which is run through, is equipped with tube core (4), and the tube core (4) includes outlet outer tube sleeve (41) and feed liquor inner tube (42), the feed liquor inner tube (42) is located at the inside of the outlet outer tube sleeve (41), the lateral wall of the outlet outer tube sleeve (41) It is equipped with extrudable connection ring (5) between the inner sidewall of closing connection ring (3), the inner sidewall of closing connection ring (3) It is uniformly provided with arc convex (6), the lateral wall of the extrudable connection ring (5) is uniformly provided with to be cooperated with the arc convex (6) The triangular hill (7) used, the arc convex (6) are staggeredly fixedly connected with the triangular hill (7), the solar energy Collect and is uniformly provided with heat transmission fin (8) between the inner sidewall of hot inner tube (2) and the lateral wall of the outlet outer tube sleeve (41), it is described to lead Hot fin (8) includes left hollow annular fin (81) and right hollow annular fin (82), the left hollow annular fin (81) and The inner cavity of the right hollow annular fin (82) is uniformly provided with rectangular radiating fin (83) respectively, the left hollow annular fin (81) it is contacted with the inner sidewall of the solar energy heating inner tube (2) with the lateral wall of the right hollow annular fin (82), institute State the inner sidewall of left hollow annular fin (81) and the right hollow annular fin (82) with the outlet outer tube sleeve (41) Lateral wall contact.

2. a kind of direct insertion evacuated collector tube according to claim 1, it is characterised in that: the arc convex (6) and institute Triangular hill (7) is stated to be made of high-temperature resistant rubber.

3. a kind of direct insertion evacuated collector tube according to claim 1, it is characterised in that: the left hollow annular fin (81) and the structure of the right hollow annular fin (82) and shape it is all the same.

4. a kind of direct insertion evacuated collector tube according to claim 1, it is characterised in that: the rectangular radiating fin (83) Setting number be 3 to 5.