CN204346209U - A kind of new type heat exchanger - Google Patents

Abstract

The utility model discloses a novel heat exchanger, which comprises a collecting pipe and a distribution pipe inserted into the collecting pipe in the axial direction. The port of the collecting pipe is provided with an end cover, and the end cover is provided with a The end cover is provided with a distribution pipe positioning structure for positioning the axial and radial positions of the distribution pipe. The utility model prevents one side of the distribution pipe from being affected by axial and radial external influences, so the positioning direction of the distribution pipe of the heat exchanger can be obviously improved and the distribution pipe can be protected.

Description

A new type of heat exchanger

technical field

The utility model relates to refrigeration and air conditioning technology, in particular to a heat exchanger.

Background technique

The general form of the existing heat exchanger is shown in Figure 1, including a header 3 and a distribution pipe 2 inserted into the header 3 in the axial direction, and the end of the flat tube 4 is inserted into the header along the radial direction of the header 3, The refrigerant enters the heat exchanger and is separated into the flat tube 4 through the distribution tube 2 . Since the distribution pipe has no positioning protection structure, the distribution pipe is easily affected by the outside world.

Utility model content

The technical problem to be solved by the utility model is to provide a new type of heat exchanger to ensure the positioning of the distribution pipe and protect the distribution pipe from axial and radial external influences.

In order to solve the above technical problems, the utility model adopts the following technical solution: a new type of heat exchanger, including a header and a distribution pipe inserted into the header in the axial direction, the port of the header is provided with an end cover, the The end cover is provided with an insertion hole for the distribution pipe to pass through, and the end cover is provided with a distribution pipe positioning structure for positioning the axial and radial positions of the distribution pipe.

Preferably, the positioning structure of the distribution pipe includes a positioning groove provided on the outer port of the end cap, and the elbow of the distribution pipe is positioned in the positioning groove.

Preferably, the end cap is provided with a groove on the inner peripheral wall of the insertion hole, and the outer peripheral wall of the distribution pipe is provided with a protrusion matching the groove.

Preferably, the end cap is a cylindrical structure, and the small-diameter end of the end cap is inserted into the collector.

Preferably, the end cap is provided with a groove on the inner peripheral wall of the insertion hole, and the outer peripheral wall of the distribution pipe is provided with a protrusion matching the groove.

Preferably, the end cover is provided with a slot on the inner peripheral wall of the socket, the outer peripheral wall of the distribution pipe is provided with a T-shaped gasket, and the gasket is formed by an axial direction extending along the distribution pipe. The extension part is composed of a radial positioning part provided on the outer end of the axial extension part, the axial extension part is inserted into the collector through a slot, and the radial positioning part is against the outer end surface of the end cover.

Preferably, the cross-section of the slot is rectangular, and the cross-section of the axial extension of the gasket is also rectangular.

In the technical solution adopted by the utility model, the end cover is provided with a distribution pipe positioning structure for positioning the axial and radial positions of the distribution pipe, so that one side of the distribution pipe is not affected by the axial and radial external influences. Therefore, the positioning direction of the distribution pipe of the heat exchanger can be significantly improved, and the distribution pipe can be protected.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

Fig. 1 is the schematic diagram of existing heat exchanger;

Fig. 2 is the schematic diagram of heat exchanger in embodiment 1;

Fig. 3 is the schematic diagram of end cap structure in embodiment 1;

Fig. 4 is the structural representation of end cap in embodiment 2;

Fig. 5 is the schematic diagram of distribution pipe structure in embodiment 2;

Fig. 6 is the schematic diagram of end cap structure in embodiment 3;

Fig. 7 is the structural representation of end cap in embodiment 4;

Figure 8 is a schematic diagram of the gasket structure in Example 4.

Detailed ways

Embodiment 1, as shown in Figure 2 and Figure 3, a new type of heat exchanger, including a header 3 and a distribution pipe 2 inserted into the header in the axial direction, the port of the header 3 is provided with an end cover 1 , the end cover 1 is provided with an insertion hole 11 through which the distribution pipe 2 passes, and the end cover 1 is provided with a distribution pipe positioning structure for positioning the axial and radial positions of the distribution pipe 2 . Specifically, the positioning structure of the distribution pipe includes a positioning groove 12 provided on the outer port of the end cover 1 , and the elbow of the distribution pipe 2 is positioned in the positioning groove 12 .

The inner end of the end cover 1 is fixed to the collecting pipe 3, the outer end of the end cover 1 extends outward along the axial direction of the collecting pipe 3, the distribution pipe 2 is inserted into the end cover 1, and the end cover 1 has the above-mentioned positioning groove on the insertion side of the distribution pipe 2 12, so that the extension of the distribution pipe 2 and the end cover 1 does not interfere, the positioning groove 12 ensures that the distribution pipe 2 is inside the end cover 1, and at the same time ensures the positioning of the distribution pipe 2, so that the side of the distribution pipe 2 is not affected by axial and radial directions. external influences.

As shown in Figures 4 and 5, Embodiment 2 is based on the technical solution of Embodiment 1. The end cover 1 is provided with a groove 111 on the inner peripheral wall of the insertion hole 11, and a groove 111 is provided on the outer peripheral wall of the distribution pipe 2. The groove 111 matches the bump 21 . This makes the distribution pipe 2 inserted into the header 3 to enter through the groove 111 of the end cover, where the distribution pipe 2 is positioned, where the angle between the distribution pipe 2 and the fin surface can be adjusted from 0-360° and the distribution pipe Axial positioning.

As shown in FIG. 6 , in the technical solution of Embodiment 3, the end cap 1 has a cylindrical structure, and the small-diameter end of the end cap 11 is inserted into the header 3 . The diameter of the large-diameter end of the end cap 1 is larger than the outer diameter of the collecting pipe 3 , and the outer diameter of the end cap 1 is used to contact the surface of the collecting pipe 3 , thereby fixing the end cap 1 . Similarly, this embodiment can also adopt the technical solution in embodiment 2, that is, the end cover is provided with a groove on the inner peripheral wall of the socket, and the outer peripheral wall of the distribution pipe is provided with a protrusion matching the groove.

As shown in Figures 7 and 8, in the technical solution of Embodiment 4, the end cover 1 is provided with a slot 112 on the inner peripheral wall of the socket 11, and a T-shaped gasket is provided on the outer peripheral wall of the distribution pipe 2. 22. The gasket consists of an axial extension extending axially along the distribution pipe and a radial positioning portion provided at the outer end of the axial extension. The axial extension is inserted into the header 3 through the slot 112, The radial positioning portion abuts against the outer end surface of the end cover 1 . This can fix the position where the distribution pipe 2 enters the end cover 1, and limit the insertion depth of the distribution pipe 2. Also, the angle between the distribution pipe 2 and the fin surface can be adjusted from 0-360° and the axial positioning of the distribution pipe can be adjusted.

Wherein, the gasket 22 is fixed on the distribution pipe 2 by welding, the cross section of the slot 112 is a rectangular structure, and the cross section of the axial extension of the gasket 22 is also a rectangular structure.

Claims (7)

1. a new type heat exchanger, comprise header and insert the distributing pipe of header vertically, described header port is provided with end cap, described end cap is provided with a jack passed for distributing pipe, it is characterized in that: described end cap is provided with the distributing pipe location structure positioned distributing pipe axis and radial position.

2. a kind of new type heat exchanger according to claim 1, is characterized in that: described distributing pipe location structure comprises the locating slot be located in end cap external port, and the heel of described distributing pipe is positioned in locating slot.

3. a kind of new type heat exchanger according to claim 2, is characterized in that: described end cap is provided with a groove at jack internal perisporium, the periphery wall of described distributing pipe be provided with one with the salient point of this groove fit.

4. a kind of new type heat exchanger according to claim 2, is characterized in that: described end cap is round platform tubular construction, and the miner diameter end of end cap inserts header.

5. a kind of new type heat exchanger according to claim 4, is characterized in that: described end cap is provided with a groove at jack internal perisporium, the periphery wall of described distributing pipe be provided with one with the salient point of this groove fit.

6. a kind of new type heat exchanger according to claim 2, it is characterized in that: described end cap is provided with a flat recess at jack internal perisporium, the periphery wall of described distributing pipe is provided with the pad of T font, described pad forms by along the axially extended axial extension of distributing pipe and the radial location portion being located at axial extension outer end, described axial extension inserts header by flat recess, and described radial location portion is resisted against on end cap outer face.

7. a kind of new type heat exchanger according to claim 6, is characterized in that: the cross section of described flat recess is rectangular configuration, and the axial extension cross section of described pad is also rectangular configuration.