CN210441463U

CN210441463U - Novel slot type heat collecting pipe of high-speed joint formula

Info

Publication number: CN210441463U
Application number: CN201921471556.3U
Authority: CN
Inventors: 李强; 薛道荣; 章金国; 冯加龙; 唐永强
Original assignee: Hebei Daorong New Energy Technology Co Ltd
Current assignee: Hebei Daorong New Energy Technology Co Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-05-01
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses a novel slot type thermal-collecting tube of high-speed joint formula, including metal inner tube and glass outer tube, the inboard of glass outer tube is equipped with the cover and establishes the bellows subassembly at metal inner tube both ends, the glass outer tube is located on vertical direction the inboard of bellows subassembly, the outside of bellows subassembly through can cut down the alloy with the outside of glass outer tube is connected, can cut down the alloy with glass outer tube parallel arrangement, the bellows subassembly inboard of metal inner tube one end is equipped with the getter. The utility model adopts the above structure a novel slot type thermal-collecting tube of high-speed joint formula, simple to operate improves the installation effectiveness, reduces installation cost.

Description

Novel slot type heat collecting pipe of high-speed joint formula

Technical Field

The utility model relates to a thermal-collecting tube technical field especially relates to a novel slot type thermal-collecting tube of high-speed joint formula.

Background

The heat utilization of the medium-high temperature trough system is applied to various fields and enterprises, and the effect is obvious. The most critical component of the trough system, the evacuated collector tube, is the main component that converts solar energy into heat. The groove type heat collecting pipe mainly comprises a metal heat absorption inner pipe, a metal compensator and a glass outer pipe, wherein the metal heat absorption inner pipe and the glass outer pipe are connected together in a sealing mode through the metal compensator to form a closed cavity, and a heat conducting medium forms a loop in the whole system to enable absorbed heat to flow back and carry out heat energy conversion.

At present, the connection and installation process of the heat collecting pipe of the groove type system installation: (1) each heat collecting pipe is measured and placed on a horizontal line by a horizontal device; in the process, the position of the heat collecting tube needs to be adjusted repeatedly to enable the heat collecting tube to be horizontal, and the levelness of the heat collecting tube is difficult to ensure after the assembly is finished. (2) The method is characterized in that the welded points of the three heat collecting pipes are fixed and fully welded, welding seams are required to be uniform without defects such as spot leakage and sand holes in the welding process, the welding process has high requirements on a welder master and cannot ensure that each welding seam is free of defects, the port of each heat collecting pipe needs to be welded to form a loop, the welding seam quality requirements after welding are high, and welding is required to be smooth without defects such as spot leakage and sand holes. (3) After welding, assembling each group on the system and welding each group together; during the process, the assembly is heavy, hoisting equipment is required, and finally, each group is welded together because the welding openings worked aloft are difficult to ensure the quality and are dangerous. (4) If a single or a plurality of heat collecting pipes are damaged in the using process, the heat collecting pipes need to be replaced in time; the disadvantages are as follows: the cutting tool is needed during replacement, and the port is difficult to ensure the parallel and level after cutting, so that the secondary welding of the replaced heat collecting tube is more difficult.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel slot type thermal-collecting tube of high-speed joint formula, simple to operate improves the installation effectiveness, reduces installation cost.

In order to achieve the purpose, the utility model provides a novel groove type heat collecting pipe of quick connection type, which comprises a metal inner pipe and a glass outer pipe, wherein the inner side of the glass outer pipe is provided with a corrugated pipe assembly sleeved at two ends of the metal inner pipe, the glass outer pipe is positioned at the inner side of the corrugated pipe assembly in the vertical direction, the outer side of the corrugated pipe assembly is connected with the outer side of the glass outer pipe through kovar alloy, the kovar alloy is arranged in parallel with the glass outer pipe, and the inner side of the corrugated pipe assembly at one end of the metal inner pipe is provided with a getter;

the both ends of metal inner tube all are equipped with and are located the connector in the bellows subassembly outside, the connector is equipped with the high temperature sealing washer including the pressure-bearing formula flange that corresponds the setting in the notch of pressure-bearing formula flange, the outside cover of pressure-bearing formula flange is equipped with split type locking hoop.

Preferably, the glass outer tube is provided with a tail pipe, and the tail pipe and the glass outer tube are connected into an integral structure through high-temperature sealing.

Preferably, the kovar alloy is connected with the glass outer tube and the corrugated tube assembly in a high-temperature sealing mode, the getter is welded to the corrugated tube assembly, and the corrugated tube assembly and the metal inner tube are welded into a whole.

Preferably, the locking hoops are fixedly connected through bolts.

Therefore, the utility model adopts the above structure a novel slot type thermal-collecting tube of high-speed joint formula, the technological effect as follows:

(1) the utility model discloses a thermal-collecting tube can reduce installation period, realizes the modularization installation.

(2) The utility model discloses a thermal-collecting tube can install one by one, avoids utilizing large-scale hoisting equipment, reduces installation cost and equipment cost.

(3) The utility model discloses a position can not take place the displacement and change after the thermal-collecting tube installation is accomplished, and the installation focus is unified.

(4) The utility model discloses a there is not cutting and welding when the thermal-collecting tube appears changing in the thermal-collecting tube in later stage use, changes simple and conveniently.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic view of an embodiment of a novel fast connection trough heat collecting tube of the present invention;

fig. 2 is a schematic diagram of an embodiment of a connector in a quick connection type novel groove type heat collecting tube of the present invention.

Reference numerals

1. A metal inner tube; 2. a glass outer tube; 3. a bellows assembly; 4. a kovar alloy; 5. a getter; 6. a connector; 7. a pressure-bearing flange; 8. a notch; 9. a seal ring; 10. a locking band; 11. and a tail pipe.

Detailed Description

The following describes embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 is the utility model relates to a schematic diagram of the novel slot type thermal-collecting tube of high-speed joint formula embodiment, fig. 2 is the utility model relates to a schematic diagram of connector embodiment in the novel slot type thermal-collecting tube of high-speed joint formula, as shown in the figure, a novel slot type thermal-collecting tube of high-speed joint formula, including metal inner tube 1 and glass outer tube 2, glass outer tube 2 is located the outside of metal inner tube 1. The glass outer tube 2 is provided with a tail pipe 11, and the tail pipe 11 and the glass outer tube 2 are connected into an integral structure through high-temperature sealing. And a getter 5 is arranged on the inner side of the corrugated pipe assembly 3 at one end of the metal inner pipe 1, the getter 5 is welded on the corrugated pipe assembly 3, and the getter 5 is used for absorbing residual air after exhaust so as to further improve the vacuum degree.

The inner side of the glass outer tube 2 is provided with a corrugated tube component 3 which is sleeved at the two ends of the metal inner tube 1, and the corrugated tube component 3 is used for compensating the expansion with heat and contraction with cold of the metal inner tube 1. The corrugated pipe assembly 3 and the metal inner pipe 1 are welded into a whole, and the metal inner pipe 1 and the corrugated pipe assembly 3 are welded into a whole in an argon arc welding mode. The outer glass tube 2 is located the inboard of bellows subassembly 3 on vertical direction, and the outside of bellows subassembly 3 is connected with the outside of outer glass tube 2 through kovar alloy 4, and wherein, kovar alloy 4 and outer glass tube 2 parallel arrangement guarantee the leakproofness of outer glass tube 2. The kovar alloy 4 and the corrugated pipe assembly 3 are connected through argon arc welding and girth welding, and the kovar alloy 4 and the glass outer pipe 2 are sealed together in a high-temperature fusion sealing mode, so that the sealing structure has good air tightness.

Both ends of metal inner tube 1 all are equipped with the connector 6 that is located the bellows subassembly 3 outside, and connector 6 is equipped with high temperature seal 9 including the pressure-bearing formula flange 7 that corresponds the setting in the notch 8 of the pressure-bearing formula flange 7 that corresponds the setting, and the outside cover of pressure-bearing formula flange 7 is equipped with split type locking hoop 10. The locking hoops 10 are fixedly connected through bolts, and the connection between the heat collecting pipes is tightly and tightly fixed through the closing of the upper locking hoop and the lower locking hoop and the fastening of a screw rod and a nut.

During production, the heat collecting pipe is vacuumized by a vacuum system at the tail pipe 11, and then the tail pipe 11 is fused by an electric sealing furnace-separating device, so that a closed vacuum chamber is formed by the tail pipe, the kovar alloy 4, the glass outer pipe 2, the metal inner pipe 1 and the corrugated pipe assembly 3. In addition, pressure-bearing flanges 7 in connectors 6 at two ends of the heat collecting pipe are sleeved into steel pipe ports at two ends of the metal inner pipe 1, and the position 5mm away from the ports is fixed; the inner edge and the outer edge are welded by an argon arc welding machine, and the welding requirement is attractive, and the defects of leakage points, sand holes and the like are avoided.

Therefore, the utility model adopts the above structure a novel slot type thermal-collecting tube of high-speed joint formula, simple to operate improves the installation effectiveness, reduces installation cost.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a novel slot type thermal-collecting tube of high-speed joint formula, includes metal inner tube and glass outer tube, its characterized in that: the inner side of the glass outer tube is provided with a corrugated tube assembly sleeved at two ends of the metal inner tube, the glass outer tube is positioned at the inner side of the corrugated tube assembly in the vertical direction, the outer side of the corrugated tube assembly is connected with the outer side of the glass outer tube through kovar alloy, the kovar alloy and the glass outer tube are arranged in parallel, and the inner side of the corrugated tube assembly at one end of the metal inner tube is provided with a getter;

2. The novel fast-connection trough type heat collecting pipe of claim 1, characterized in that: the glass outer tube is provided with a tail pipe, and the tail pipe and the glass outer tube are connected into an integral structure through high-temperature fusion sealing.

3. The novel fast-connection trough type heat collecting pipe of claim 1, characterized in that: the kovar alloy is connected with the glass outer tube and the corrugated tube assembly in a high-temperature sealing mode, the getter is welded to the corrugated tube assembly, and the corrugated tube assembly and the metal inner tube are welded into a whole.

4. The novel fast-connection trough type heat collecting pipe of claim 1, characterized in that: the locking hoops are fixedly connected through bolts.