CN215295407U

CN215295407U - Corrugated device with exhaust function

Info

Publication number: CN215295407U
Application number: CN202121419088.2U
Authority: CN
Inventors: 许维华; 张学娟; 石英利; 公丕明; 黄鸣
Original assignee: Himin Solar Co Ltd
Current assignee: Himin Solar Co Ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-12-24
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses a ripple device with exhausting function belongs to bellows technical field, installs metal exhaust duct additional on the buffering bellows, makes slot type evacuated collector tube's exhaust seal from becoming simple reliable, include: a bellows having at least one end opening; the connecting disc is connected with the opening on the end face of the corrugated pipe, the connecting disc is provided with a through hole, the hole wall of the through hole is separated from the outer side of the corrugated pipe, the metal pipe is inserted into the through hole, and one end of the metal pipe, which is far away from the connecting disc, is communicated with the outside; the outer glass tube, bellows, connection pad and outer glass tube between form the cavity, through-hole intercommunication cavity, the metal pipe can be used for taking out the air in the cavity.

Description

Corrugated device with exhaust function

Technical Field

The utility model belongs to the technical field of the bellows, concretely relates to ripple device with exhausting function.

Background

At present, in the field of solar energy medium-high temperature application, the exhaust mode of the groove type vacuum heat collecting pipe generally adopts a glass tail pipe with a tail waist connected with one side of a cover glass pipe for exhausting, and the inventor finds that the technology has the following defects in the aspects of production cost, production efficiency and the like: (1) the tail pipe at one side of the cover glass pipe needs higher glass processing skill, so that the mechanical batch production is difficult to realize, and the production efficiency is low; (2) the side surface of the cover glass tube is connected with an exhaust tail tube, so that stress annealing is not timely generated and the cover glass tube is easy to crack; (3) the tail tip of the finished product is left, so that the appearance is influenced, and the finished product is easy to collide with air and leak, thereby causing waste products; (4) difficult operations of air exhaust and sealing-off), which affects the product quality; (5) the exhaust process can be carried out only once, cannot be reworked, and has high rejection rate; (6) the packing box at the tail tip of the finished product adopts a heightened design to cause packing) and has high transportation cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a ripple device with exhausting function, install metal exhaust pipe additional on the buffering bellows, make slot type evacuated collector tube's exhaust seal from becoming simple reliable to the not enough of prior art existence. The device can avoid the processing damage to the groove type pipe cover glass, the sealing separation of the metal guide pipe can also become simple and reliable, the batch production can be realized, the unqualified products such as pipe explosion and gas leakage are reduced, the complicated process of exhausting and sealing separation is changed, the cost is reduced, and the production efficiency is improved.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

the technical scheme of the utility model a ripple device with exhausting function is provided, include:

a bellows having at least one end opening;

the connecting disc is connected with the opening on the end face of the corrugated pipe, the connecting disc is provided with a through hole, the hole wall of the through hole is separated from the outer side of the corrugated pipe, the metal pipe is inserted into the through hole, and one end of the metal pipe, which is far away from the connecting disc, is communicated with the outside;

the outer glass tube, bellows, connection pad and outer glass tube between form the cavity, through-hole intercommunication cavity, the metal pipe can be used for taking out the air in the cavity.

Above-mentioned the utility model discloses a technical scheme's beneficial effect as follows:

1) in the utility model, the metal pipe is used as the exhaust pipe, thereby improving the reliability; the blast pipe is changed into the terminal surface by the side butt fusion and is pegged graft, reduces the operation degree of difficulty coefficient, can realize mechanized batch production, improves production efficiency.

2) The utility model discloses in, compare in high borosilicate glass tail pipe side butt fusion after produce stress, the defect that the annealing is not in time very easily explodes and splits changes into and uses the tubular metal resonator, does not need annealing process, can not form stress and cause the thermal-collecting tube to explode and split.

3) The utility model discloses in, compare and seal the tail point from behind the exhaust of borosilicate glass tail pipe, bump the defect that bad leads to the fact the waste product easily in the use, use the metal pipe seal back, seal and can not bump badly from the department.

4) Compared with the exhaust process of a high borosilicate glass tail pipe, the exhaust process of the high borosilicate glass tail pipe belongs to a one-off process and has the defect of high cost; after the metal pipe is changed, the exhaust can be reworked for many times, the cost is reduced, and the product percent of pass is improved.

5) The utility model discloses in, compare in the borosilicate glass tail pipe seal from the defect of department tail point in outer glass pipe outside department, the utility model provides a finished product need not increase the design at the packing box, and packing, cost of transportation reduce.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a schematic side view of the present disclosure according to one or more embodiments;

fig. 2 is a partial schematic end view of the present disclosure according to one or more embodiments;

fig. 3 is a prior art schematic.

In the figure: 1. the high-borosilicate glass tail pipe comprises a metal pipe, 2 a connecting disc, 3 a corrugated pipe, 4 an outer glass pipe, 5 a kovar alloy connecting part, 6 a galvanized steel pipe and 11 an existing high-borosilicate glass tail pipe tail tip.

The spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.

Detailed Description

It should be noted that any combination between the following embodiments is possible.

Example 1

The utility model discloses an among the typical implementation, this embodiment discloses a ripple device with exhausting function, include:

a bellows 3 body having at least one end opening; the exhaust pipe is changed from side surface welding to end surface splicing, so that the operation difficulty coefficient is reduced, the mechanical batch production can be realized, and the production efficiency is improved;

the main body of the bellows 3 is a section of bellows 3, and detailed structure thereof is not described herein, but it should be noted that one end of the bellows 3 in this embodiment is an opening to facilitate connection with the connection disc 2;

the connecting disc 2 is connected with the main body of the end face opening 3 of the main body of the corrugated pipe 3, the connecting disc 2 is provided with a through hole, the metal pipe 1 is inserted into the through hole, one end of the metal pipe 1, far away from the connecting disc 2, is communicated with the outside, the metal pipe 1 is used as an exhaust pipe to replace a welded glass pipe in the prior art, and the reliability can be improved;

the outer glass tube 4, the bellows 3 body, the connection disc 2 and the outer glass tube 4 form a cavity therebetween, and the metal tube 1 can be used for pumping out air in the cavity.

It can be understood that the external glass tube 4 of the present embodiment is no longer welded with the borosilicate glass tube, so that the phenomenon that the tail tip of the borosilicate glass tail tube is sealed off after exhausting is avoided, the tail tip is easily damaged in the using process to cause waste products, and meanwhile, the sealed off part cannot be damaged after the metal tube 1 is clamped and sealed; compared with the characteristic of high one-time cost of the high borosilicate glass tail pipe exhaust process, after the metal pipe 1 is changed into the high borosilicate glass tail pipe exhaust process, the high borosilicate glass tail pipe exhaust process can be reworked for multiple times to exhaust, the cost is reduced, the product percent of pass is improved, the tail tip of the sealing-off position is not positioned at the corrugated pipe 3, the packing box does not need to be designed to be heightened, and the packing and transportation cost is reduced.

It will be appreciated that in order to evacuate the air from the cavity, the outer end of the metal tube 1 (the end remote from the connecting disc 2) is connected to a negative pressure suction device, such as a vacuum device, which is well known to those skilled in the art and will not be described herein.

The land 2 in this embodiment is increased in size compared to the conventional land 2 so as to facilitate the through-holes formed in the land 2.

It can be understood that, the through hole is separated from the outer wall of the glass tube, when the metal tube 1 is used, the end of the metal tube close to the connection disc 2 is sealed with the connection disc 2 by a sealing means, for example, the metal tube 1 and the connection disc 2 are bonded by using a sealant, and after the connection, the metal tube 1 and the connection disc 2 are connected into a whole by the sealant, and the gas cannot escape through the gap between the metal tube and the connection disc 2, thereby facilitating the vacuum device to suck the air in the cavity.

The connection passage is formed between the cavity and the metal tube 1, and the specific vacuum pumping action of the metal tube 1 through the connection passage and the air in the cavity is that although the vacuum pumping position is changed in the embodiment, the air volume in the cavity is small, the air pressure change formed by the outer glass tube 4 and the corrugated tube 3 is balanced, and the tube explosion phenomenon is avoided.

An internal channel is arranged at the center of the connecting disc 2, and the through hole is separated from the internal channel. In this embodiment, the passage is used for connecting the galvanized steel pipe 6, the galvanized steel pipe 6 is a material commonly used in the art, and is disposed in the corrugated pipe 3, the end of the galvanized steel pipe 6 passes through the internal passage, and the galvanized steel pipe 6 and the internal passage are sealed by a sealing means, for example, the galvanized steel pipe 6 and the connecting disc 2 are bonded by using a sealant, and after connection, the galvanized steel pipe 6 and the connecting disc 2 are connected into a whole by the sealant, and gas cannot escape through a gap between the galvanized steel pipe 6 and the connecting disc 2, so that the liquid in the galvanized steel pipe 6 cannot penetrate into the corrugated pipe 3 through the gap when flowing.

The end face of the corrugated pipe 3 main body is flush, and the end face of the connecting disc 2 is parallel to the end face of the corrugated pipe 3 main body. The end face of the main body of the corrugated pipe 3 is connected with the connecting disc 2, and in order to keep the connection tight, the end face of the main body of the corrugated pipe 3 is flush, and the end face of the main body of the corrugated pipe 3 is perpendicular to the central axis of the corrugated pipe 3 so as to be in contact with the connecting disc 2.

It can be understood that the connecting disc 2 is a part with a flat cylindrical main body and a circle of annular protrusions arranged on the outer side, so that when the central axis of the connecting disc coincides with the central axis of the corrugated pipe 3, the end face of the connecting disc is parallel to the end face of the corrugated pipe 3, and the tightness of the connection between the corrugated pipe 3 and the connecting disc 2 can be guaranteed.

The outer edge of the connecting disc 2 is attached to the inner edge of the corrugated pipe 3 main body; the specific shape of the connecting disc 2 is that a main body is in a flat cylindrical shape, a circle of annular bulge is arranged on the outer side of the main body, and the outer edge of the main body only refers to the outer edge of the flat cylindrical part of the connecting disc 2; and the outer edge of the annular protrusion is connected with the kovar alloy connecting part 5.

It will be appreciated that since the metal tube 1 serves to form a passage for evacuating the cavity, the metal tube 1 is necessarily separated from the bellows 3, and in this embodiment, the central axis of the metal tube 1 is parallel to the central axis of the connecting disc 2.

In this embodiment, the end of the metal tube 1 close to the connecting disc 2 is located inside the connecting disc 2, and in this case, air in the cavity is collected at the through hole during vacuum pumping.

In a further embodiment the metal tube 1 is passed through the connection disc 2 near the end of the connection disc 2, in which case, when a vacuum is drawn, air in the cavity collects at the inner end of the metal tube 1.

In the present embodiment, the outer glass tube 4 is connected to the annular projection of the connection plate 2 via the kovar alloy connection portion 5. Kovar alloys are also known as sealing alloys or expansion alloys. Alloys having relatively constant coefficients of expansion of low or medium degrees over a temperature range of-70 to 500 ℃. It is close to the expansion coefficient of the sealed material such as glass or ceramic, so as to achieve the effect of matching sealing. The main types are Fe-Ni, Fe-Ni-Co, Fe-Ni-Cr alloys. And oxygen-free copper, tungsten, molybdenum, alloys thereof, and composites thereof.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bellows device with an exhaust function, comprising:

a bellows having at least one end opening;

2. The exhaust bellows apparatus according to claim 1, wherein the central portion of the connecting plate further defines an internal passage for receiving a pipe, and the through hole is separated from the internal passage.

3. The exhaust corrugated apparatus according to claim 1, wherein end surfaces of the corrugated tube are flush, and end surfaces of the connection plate are parallel to the end surfaces of the corrugated tube.

4. The vented bellows apparatus of claim 1, wherein the outer edge of the connection plate and the inner edge of the bellows are in contact with each other.

5. The vented bellows apparatus of claim 1, wherein the land and the bellows are coaxial.

6. The exhaust corrugated apparatus according to claim 1, wherein the central axis of the metal pipe and the central axis of the connection plate are parallel.

7. The vented bellows apparatus of claim 1, wherein the metal tube is located inside the land proximate to an end of the land.

8. The vented bellows apparatus of claim 1, wherein the side of the land comprises a plurality of protrusions, at least one of the protrusions engaging an inner edge of the bellows.

9. The vent-enabled bellows device of claim 1, further comprising a kovar alloy connection portion through which the outer glass tube is connected to the connection pad.

10. The exhaust corrugated apparatus according to claim 1, further comprising a coated steel pipe, the coated steel pipe being disposed inside the corrugated pipe and passing through the connection plate.