CN210772897U

CN210772897U - Fin type condenser for industrial refrigeration

Info

Publication number: CN210772897U
Application number: CN201921641589.8U
Authority: CN
Inventors: 陈建元; 郑磊
Original assignee: Changzhou Changzheng Heat Exchanger Technology Co ltd
Current assignee: Changzhou Changzheng Heat Exchanger Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-16
Anticipated expiration: 2029-09-29

Abstract

The utility model belongs to the technical field of the condenser, in particular to refrigerated finned condenser of industry, including a plurality of fin bodies that range of range upon range of form with the interval, the condenser tube wears to establish through each fin body in proper order through the condenser tube hole on the fin body, condenser tube hole department is connected with a support section of thick bamboo, and the top week of a support section of thick bamboo forms the turn-ups along outside expansion, is close to on the fin body that the hoop upwards protruding formation step of department is followed to condenser tube hole week, between the fin body of upper and lower adjacent setting, in the turn-ups embedding of below fin is by the recess that the step on the fin body encloses.

Description

Fin type condenser for industrial refrigeration

Technical Field

The utility model belongs to the technical field of the condenser, in particular to refrigerated finned condenser of industry.

Background

The fin condenser mainly comprises fins and a cylindrical or approximately cylindrical condensing tube penetrating through the fins, a refrigerant flows in a cooling tube, hot fluid (hot gas) flows through the surfaces of the fins outside the condensing tube, in the process, the heat of the hot fluid is transferred to the condensing tube (most of the heat is transferred to the condensing tube through the fins), and the refrigerant in the condensing tube flows all the time, so that the refrigerant can take away the heat transferred to the condensing tube, and the heat exchange between the refrigerant and the hot fluid is completed. And the spacing between adjacent fins in a stacked arrangement greatly affects the heat exchange efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a finned condenser for industrial refrigeration, which comprises a plurality of finned bodies arranged in a laminated manner at intervals, wherein each finned body is distributed with condensing tube holes penetrating through the upper surface and the lower surface of the finned body, the condensing tubes are sequentially penetrated through each finned body through the condensing tube holes,

the upper surface of the fin body is connected with a supporting cylinder which is coaxial with the condensing pipe hole, has the same radial size and has two open ends along the axial direction of the fin body, the condensing pipe penetrates through the supporting cylinder, the top circumference of the supporting cylinder expands outwards to form a flange, the part of the fin body, which is close to the circumference of the condensing pipe hole, protrudes upwards to form a step,

between the fin body that upper and lower adjacent set up, the turn-ups of below fin is vertical upwards to be embedded into by the step on the fin body of top in the recess that this fin body lower surface of top encloses, and there is the inside and outside relation of cup jointing that matches just in the size relation of turn-ups open-top's external diameter and the internal diameter of recess.

Preferably, the method comprises the following steps: the flanging is obliquely arranged from bottom to top outwards;

preferably, the method comprises the following steps: the pipe body of the condensing pipe is outwards abutted against the inner cylindrical surface of the supporting cylinder through the expansion joint ring;

preferably, the method comprises the following steps: the step includes flat step face and side step face, and the side step face is vertical setting.

Drawings

Figure 1 is a schematic structural view (sectional view) of a fin in the industrial refrigeration fin-type condenser of the present invention,

fig. 2 is a schematic view (sectional view) of an assembly structure of the industrial refrigeration finned condenser of the present invention, in order to distinguish two fins more clearly, one of the two fins adjacent to each other up and down in the figure has hatching (oblique line) filled, the other does not have, the same as below,

FIG. 3 is a schematic diagram showing the relative positions of two adjacent fins pressed against each other without steps (grooves) and flanges on the fin body, for comparison,

fig. 4 is a schematic diagram showing the relative positions of two fins adjacent to each other up and down when the fin body has no step (groove), and by comparison,

FIG. 5 is a schematic diagram showing the relative positions of two adjacent fins when they are pressed together, and is an enlarged schematic diagram of the circled portion in FIG. 2,

the condenser comprises a fin body 1, a condenser hole 11, a support cylinder 12, a flanging 121, a step 13, a flat step surface 131, a side step surface 132 and a condenser pipe 2.

Detailed Description

It should be noted that the terms "upper", "lower", "vertical" and "horizontal" used in the description of the present invention refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a specific component, respectively. These are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

The industrial refrigeration finned condenser of the utility model comprises a plurality of fin bodies 1 which are arranged in a laminated manner at intervals, a plurality of condensing tube holes 11 (round holes) which run through the upper and lower surfaces of the fin bodies 1 are evenly distributed on each fin body 1, the condensing tubes 2 sequentially pass through each fin body 1 through the corresponding condensing tube holes 11 on the plurality of fin bodies 1 from top to bottom,

the upper surface of the fin body 1 and the position of the condensing tube hole 11 are connected with a supporting cylinder 12 which is coaxially arranged with the condensing tube hole 11, is mutually communicated, has the same radial size and shape, and has two open ends along the axial direction, the condensing tube 2 coaxially penetrates through the supporting cylinder 12, the tube body of the condensing tube 2 is outwards abutted against the inner cylindrical surface of the supporting cylinder 12 through expansion joint in the circumferential direction,

the top circumference of the supporting cylinder 12 is symmetrically expanded outwards to form a flange 121, and the flange 121 is obliquely arranged from bottom to top; the fin body 1 is symmetrically and annularly upwards protruded at the periphery close to the condensing tube hole 11 to form steps 13 (so as to correspondingly lift the support cylinder 12 connected to the condensing tube hole 11), the steps 13 comprise flat step surfaces 131 and side step surfaces 132, the side step surfaces 132 are vertically arranged, the flat step surfaces 131 are horizontally arranged, the fin body 1, the steps 13, the support cylinder 12 and the flanges 121 are integrally formed and are in smooth transition with each other (the smooth transition structure at the connection part of the fin body 1, the steps 13, the support cylinder 12 and the flanges 121 is of a conventional design and is not detailed in the attached figures 1 to 5,

between the fin body 1 that sets up adjacently from top to bottom, turn-ups 121 on the fin body 1 of below is upwards embedded in the recess that is enclosed on this fin body 1 lower surface by step 13 on the fin body 1 of top vertically, and turn-ups 121 top of fin body 1 of below supports the tank bottom of this recess (being the lower surface relative with this step 13 flat step 131 on the fin body 1) upwards vertically, and there is the inside and outside cup joint relation (this is very important) that matches just in the size relation of turn-ups 121 open-top's external diameter and the internal diameter of this recess.

For the wavy fin, the annular area on the fin body 1 close to the bottom peripheral edge of the annular step 13 is planar, so that the step 13 and the support cylinder 12 vertically extend upwards on the basis of the plane, and the annular planar area and the fin body 1 on the peripheral edge are connected integrally in a smooth transition mode.

When the multi-piece fin is actually assembled and used, the stacked fins are subjected to pressing forces from the upper part and the lower part towards the middle. In the attached drawing 3, the fin structure is a relatively conventional fin structure, and under the action of extrusion force, because the wall of the supporting cylinder 12 is very thin, the upper part of the lower supporting cylinder 12 is easily jacked upwards and inserted into the condensing tube hole 11 of the upper fin, the distance between the upper and lower adjacent fins is reduced, and the heat exchange effect is influenced;

the inclined flange 121 extends outwards from the top periphery of the support cylinder 12 in fig. 4, the existence of the flange 121 really plays a role of blocking, and prevents the support cylinder 12 from being inserted into the condenser tube hole 11 of the fin above when the support cylinder is acted by an upward jacking force, but it is not difficult to see that in this case, a circle of the flange 121 is stressed downwards, the material of the flange 121 is always in a hard state in the using process, so that the flange 121 is easily cracked by the pressure, namely, a crack which has a length direction basically consistent with the radius direction of the circle surrounded by the flange 121 appears on the surface of the flange 121, the crack is generally cracked from the top periphery of the flange 121, and the crack extends downwards quickly under the pressure to crack, so that the flange 121 and the cylinder wall of the support cylinder 12 appear,

in the design of the scheme, as shown in fig. 5, the turned-over edge 121 is embedded into the groove surrounded by the step 13, so that not only is the lower support cylinder 12 prevented from being inserted into the condenser tube hole 11 of the upper fin, but also the inner and outer sleeving relation which is just matched exists between the outer diameter of the top opening of the turned-over edge 121 and the inner diameter of the groove surrounded by the step 13 in the size relation, so that the inner surface of the circle corresponding to the step surface 132 of the step 13 on the fin body 1 above is just horizontally and inwards abutted against the top peripheral edge of the turned-over edge 121 on the lower fin, and the turned-over edge 121 is prevented from being expanded outwards after being subjected to downward pressure to crack.

Claims

1. The utility model provides a refrigerated finned condenser of industry, the condenser include a plurality of fin bodies (1) of range upon range of form arrangement with interval, each distribute on fin body (1) and offer and run through condenser hole (11) of surface about fin body (1), condenser pipe (2) pass through condenser hole (11) wear to establish in proper order through each fin body (1), its characterized in that:

the upper surface of the fin body (1) is connected with a supporting cylinder (12) which is coaxially arranged with the condensing tube hole (11), has the same radial size and is provided with openings at two ends along the axial direction of the fin body, the condensing tube (2) coaxially penetrates through the supporting cylinder (12), the periphery of the top of the supporting cylinder (12) is expanded outwards to form a flange (121), and the periphery of the fin body (1) close to the condensing tube hole (11) is annularly and upwards protruded to form a step (13),

between the fin bodies (1) which are arranged adjacently from top to bottom, the flanging (121) on the fin body (1) below is vertically and upwards embedded into a groove which is formed by surrounding the step (13) on the fin body (1) above in the lower surface of the fin body (1) above, and the outer diameter of the top opening of the flanging (121) and the inner diameter of the groove have an inner and outer sleeving relation which is just matched in size relation.

2. An industrial refrigeration finned condenser as set forth in claim 1 wherein: the turned-over edge (121) is arranged obliquely outwards from bottom to top.

3. An industrial refrigeration finned condenser as set forth in claim 1 wherein: the pipe body of the condensation pipe (2) is abutted outwards against the inner cylindrical surface of the support cylinder (12) through expansion joint in the circumferential direction.

4. An industrial refrigeration finned condenser as set forth in claim 1 wherein: the step (13) comprises a flat step surface (131) and a side step surface (132), and the side step surface (132) is vertically arranged.