CN213396710U

CN213396710U - Harmonica pipe and condenser based on harmonica pipe

Info

Publication number: CN213396710U
Application number: CN202021156773.6U
Authority: CN
Inventors: 刘家又; 王常凯; 郭寅斌
Original assignee: Guizhou Kaihong Huida Cooling System Co ltd
Current assignee: Guizhou Kaihong Huida Cooling System Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-06-08
Anticipated expiration: 2030-06-19

Abstract

The scheme discloses a harmonica tube in the field of heat exchange equipment, which comprises a tube body, wherein a plurality of flow channels are arranged in the tube body; the two ends of the pipe body are provided with necking in a surrounding way. When will the harmonica pipe welding in this application on the pressure manifold, be equipped with the both ends of throat with the pipe body and connect the connecting hole of pressure manifold respectively, because the setting of throat for the tip size of pipe body is less than the size of connecting hole, is convenient for manage quick being connected to on the pressure manifold with the harmonica. Meanwhile, the length of the extension of the necking to the tube body is set to be the length of the required harmonica tube extending into the collecting pipe connecting hole, when welding is conducted, the port of the tube body extends into the connecting hole until the connecting hole contacts with the tail end of the necking, and therefore positioning between the harmonica tube and the collecting pipe can be completed, and therefore the size of the condenser core body is guaranteed. In addition, this application still provides the condenser based on above-mentioned harmonica pipe.

Description

Harmonica pipe and condenser based on harmonica pipe

Technical Field

The utility model belongs to the indirect heating equipment field, in particular to harmonica pipe and because its condenser.

Background

The application range of the condenser is very wide, and particularly the condenser is applied to a refrigeration air-conditioning system. The performance of the condenser, which is one of the main heat transfer devices, directly affects the overall performance of the device. The harmonica tube has the characteristics of simple structure, light weight with the same volume, high material utilization rate and the like, and is widely used.

The harmonica tube is composed of a tube body and a plurality of flow passages arranged in the tube body. When the harmonica tube is applied to the condenser, the harmonica tube is mainly assembled with the collecting pipe, and then a condenser core body is obtained. When the condenser core body is assembled, a plurality of harmonica tubes are welded between the two collecting pipes, so that the collecting pipes are communicated with the harmonica tubes. Because the both ends of mouth organ pipe will weld in the connecting hole department of pressure manifold, and the port of mouth organ pipe and the drill way phase-match of connecting hole, when the welding, mouth organ pipe and pressure manifold junction are difficult to the location, hardly guarantee the length that the tip of mouth organ pipe enters into the connecting hole to make the size of condenser core be difficult to obtain guaranteeing, can lead to producing certain inclination between two pressure manifolds even. In addition, because the port of the harmonica tube is matched with the hole opening of the connecting hole, the port of the harmonica tube is difficult to be connected with the connecting hole, and the harmonica tube is difficult to be quickly connected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a harmonica pipe to solve the harmonica pipe among the prior art when welding the pressure manifold, be difficult to the high-speed joint and can't ensure the problem of condenser core size.

The harmonica tube comprises a tube body, wherein a plurality of flow channels are arranged in the tube body; the two ends of the pipe body are provided with necking in a surrounding way.

The working principle and the beneficial effects of the scheme are as follows: when welding the harmonica pipe on the pressure manifold, be equipped with the both ends of throat with the pipe body and connect the connecting hole of pressure manifold respectively, because the setting of throat for the tip size of pipe body is less than the size of connecting hole, be convenient for with the quick being connected to on the pressure manifold of harmonica pipe. Meanwhile, the length of the extension of the necking to the tube body is set to be the length of the required harmonica tube extending into the collecting pipe connecting hole, when welding is conducted, the port of the tube body extends into the connecting hole until the connecting hole contacts with the tail end of the necking, and therefore positioning between the harmonica tube and the collecting pipe can be completed, and therefore the size of the condenser core body is guaranteed.

Further, the necking comprises a width necking and a length necking, the width necking is positioned in the width direction of the pipe body, and the length necking is positioned in the length direction of the pipe body; the extension length of the length necking in the length direction of the pipe body is 6-7 mm. When welding harmonica pipe to the pressure manifold, the length that the pipe body entered into in the connecting hole generally is 6 ~ 7mm, sets up the length of length throat into 6 ~ 7mm, is favorable to maintaining the size of current condenser core, increases its commonality.

Further, the extension length of the width reducing mouth in the length direction of the pipe body is less than 6 mm. The width direction of the tube body is a key part for ensuring the connection strength between the harmonica tube and the collecting pipe; and the most welding material is consumed, the extension length of the width reducing port in the length direction of the tube body is set to be less than 6mm, on one hand, the strength of the joint of the tube body and the liquid collecting tube is ensured, and meanwhile, the extension length of the width reducing port in the length direction of the tube body is less than that of the length reducing port in the length direction of the tube body, so that the width direction of the tube body is completely attached to the welding part of the liquid collecting tube, a large amount of welding material can be saved, and the welding workload is reduced.

Further, the width reducing port gradually reduces from the port of the pipe body to the center. The width throat adopts the mode of reducing from the port of pipe body to the center gradually, is favorable to being connected between pipe body and the collector tube, avoids simultaneously causing adverse effect to the intensity of pipe body and collector tube welding department.

Further, condenser based on above-mentioned harmonica pipe. By adopting the condenser with the harmonica tube, the production cost of the condenser can be well reduced.

Drawings

FIG. 1 is a perspective view of a prior art harmonica tube;

fig. 2 is a perspective view of a harmonica tube of embodiment 1 of the present invention after being cut off therefrom;

fig. 3 is a front view of a harmonica tube welded on a collecting pipe in embodiment 1 of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the pipe comprises a pipe body 1, a flow passage 2, a width reducing opening 3, a length reducing opening 4, a collecting pipe 5 and a harmonica pipe A.

The harmonica tube in the prior art is shown in an attached figure 1 and comprises a tube body 1, wherein a plurality of flow passages 2 are arranged in the tube body 1.

Example 1 is substantially as shown in figure 2: a harmonica tube (namely a harmonica tube A in the attached figure 3) comprises a tube body 1, wherein a plurality of flow channels 2 are arranged in the tube body 1; the two ends of the pipe body 1 are provided with necking in a surrounding way; the necking comprises a width necking 3 positioned above and below the pipe body 1 and length necking 4 positioned at two sides of the pipe body 1, namely the width necking 3 is positioned in the width direction of the pipe body 1, and the length necking 4 is positioned in the length direction of the pipe body 1; the length of the length reducing mouth 4 in the length direction of the pipe body 1 is 6mm, the length of the width reducing mouth 3 in the length direction of the pipe body 1 is 3mm, and the width reducing mouth 3 is gradually reduced from the end of the pipe body 1 to the center.

The specific implementation mode is as follows: when the harmonica tube a in the embodiment 1 is welded on the collecting pipe 5, two ends of the harmonica tube a body 1 are respectively connected to the connecting holes of the collecting pipe 5 until the connecting holes contact with one side of the length reducing 4 far away from the end part of the tube body 1, the positioning between the tube body 1 and the collecting pipe 5 is completed at the moment, then the connecting parts of the tube body 1 and the collecting pipe 5 are welded, and the size of the welded condenser core body can be ensured to be consistent (as shown in the attached drawing 3). Due to the arrangement of the width reducing opening 3 and the length reducing opening 4, the end part of the pipe body 1 is more convenient to connect with the collecting pipe 5. In addition, the length reducing mouth 4 is arranged, so that the positioning between the pipe body 1 and the collecting pipe 5 can be well ensured, and the size consistency of the core body is ensured.

Harmonica pipe A in this application can extensively be used for in the production of condenser.

Claims

1. A harmonica tube comprises a tube body, wherein a plurality of flow passages are arranged in the tube body; the method is characterized in that: the two ends of the pipe body are provided with necking in a surrounding way; the necking comprises a width necking and a length necking, the width necking is positioned in the width direction of the pipe body, and the length necking is positioned in the length direction of the pipe body; the extension length of the length reducing mouth in the length direction of the pipe body is 6-7 mm; the extension length of the width necking in the length direction of the pipe body is less than 6 mm.

2. The harmonica tube of claim 1, wherein: the width reducing port gradually reduces from the port of the pipe body to the center.

3. A condenser, characterized by: comprising a harmonica tube as claimed in claim 1 or claim 2.