CN218915472U

CN218915472U - Pipeline evaporation type condensing coil and evaporation type condenser

Info

Publication number: CN218915472U
Application number: CN202222681528.2U
Authority: CN
Inventors: 杨洋; 孙清华; 桂林松; 顾海华
Original assignee: Schlee Nanjing Refrigeration Machinery Manufacturing Co ltd
Current assignee: Schlee Nanjing Refrigeration Machinery Manufacturing Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-04-25
Anticipated expiration: 2032-10-12

Abstract

The utility model discloses a pipeline evaporative condensing coil and an evaporative condenser, wherein the pipeline evaporative condensing coil comprises an inlet pipeline connected with a refrigerant inlet, an outlet pipeline serving as a refrigerant outlet and a plurality of intermediate pipelines connected in series and layered between the inlet pipeline and the outlet pipeline, the inlet pipeline and the outlet pipeline form a first plane, and the central axis of all or part of the intermediate pipelines is distant from the first plane. The utility model adopts the structure that all pipelines deviate from the reference plane in the vertical direction so as to form the condensation coil pipe in layered staggered arrangement, so that the circulation track of the refrigerant is downward in N shape, the spraying area is increased and the heat exchange effect is improved under the condition that the heat exchange area of the refrigerant is not reduced.

Description

Pipeline evaporation type condensing coil and evaporation type condenser

Technical Field

The utility model relates to a condenser, in particular to a pipeline evaporative condensing coil and an evaporative condenser.

Background

The condenser is one of the main heat exchange equipment in various industries such as food, chemical industry, pharmacy and the like, and has wide application. The evaporative air conditioning technology is energy-saving, environment-friendly and sustainable, and effectively solves the problems of high initial investment, high operation energy consumption and the like of traditional mechanical refrigeration. The evaporative condenser is one of the condensers, and is a high-power condensing device which takes away the heat of a refrigerant by utilizing forced convection circulation of air and evaporation of water. There is currently an increasing number of people beginning to study the use of evaporative condensers. The principle of the evaporative condenser is that a small flow of circulated cooled water evaporates on the outer surface of the condensing coil, and the refrigerant gas condenses into a liquid in the condensing coil. The condensation coil is formed by bending an internal tooth copper pipe, so that the existing evaporative condenser mostly adopts a coil which is slightly inclined downwards along the flowing direction of the refrigerant, but all tube passes of the coil are vertically and downwards bent and connected, and a barrier exists between an upper layer and a lower layer, so that the contact surface of cooling water spraying is limited, and the heat exchange effect is affected.

Disclosure of Invention

The utility model aims to: the utility model aims to overcome the defects in the prior art, and provides a novel pipeline evaporative condensing coil and an evaporative condenser, so that heat exchange is more uniform, the heat exchange effect is improved, and meanwhile, the difficulty of a processing technology is reduced.

The technical scheme is as follows: the utility model relates to a pipeline evaporation type condensing coil which comprises an inlet pipeline connected with a refrigerant inlet, an outlet pipeline serving as a refrigerant outlet and a plurality of intermediate pipelines connected in series and layered between the inlet pipeline and the outlet pipeline, wherein the inlet pipeline and the outlet pipeline form a first plane, and the central axis of all or part of the intermediate pipelines is distant from the first plane.

As a preferable structure of the present utility model, adjacent intermediate pipes are connected by a U-shaped connecting pipe, an outlet of an upper intermediate pipe is connected to an inlet of a U-shaped connecting pipe, an outlet of the U-shaped connecting pipe is connected to an inlet of a lower intermediate pipe, the U-shaped connecting pipe includes a first straight pipe, a second straight pipe, and an arc pipe for connecting the first straight pipe and the second straight pipe together, and the arc pipe is provided with two ends not in one plane so that central axes of the first straight pipe and the second straight pipe are not parallel.

As a preferable structure of the present utility model, the adjacent intermediate pipes include a first pipe and a second pipe, the first pipe and the second pipe are located on both sides of the first plane, respectively, and a distance between a central axis of the first pipe and the first plane and a distance between a central axis of the second pipe and the first plane are equal.

As a preferable structure of the present utility model, the distance between the central axes of the first pipe and the second pipe and the first plane is equal to the layer height between the upper and lower pipes.

As a preferable structure of the present utility model, the central axes of the odd-numbered intermediate pipes are equal in distance from the first plane in which the central axes of the even-numbered intermediate pipes are located and greater than zero, according to the sequential encoding of the layers of pipes from the inlet pipe to the outlet pipe from top to bottom.

As a preferable structure of the present utility model, the central axes of the even-numbered intermediate pipes are equal in distance from the first plane in which the central axes of the odd-numbered intermediate pipes are located and greater than zero, according to the sequential encoding of the layers of pipes from the inlet pipe to the outlet pipe from top to bottom.

The evaporative condenser comprises the pipeline evaporative condensing coil.

The beneficial effects are that: the utility model adopts the structure that each pipeline deviates from the reference plane in the vertical direction so as to form the condensation coil pipe in layered staggered arrangement, so that the refrigerant circulation track is downward in a 45-degree N shape, the shielding between the pipelines of the adjacent layers is greatly reduced under the condition that the heat exchange area of the refrigerant is not reduced, the spray area is increased, the heat exchange effect is improved, the spray water can be sprayed down to be more easily, quickly and uniformly wrapped on the surface of the coil pipe, the heat exchange is more uniform, the formation of surface dirt of the coil pipe is reduced, the processing difficulty of the coil pipe is greatly reduced during the manufacture of the coil pipe, and the subsequent cleaning is more convenient.

Drawings

FIG. 1 is an elevation view of a condenser coil tubing;

FIG. 2 is a side view of a conventional condenser coil piping;

FIG. 3 is a side view of a condenser coil piping of example 1 of the present utility model;

FIG. 4 is a side view of a condenser coil piping of example 2 of the present utility model;

fig. 5 is a schematic view of a U-shaped connection tube according to the present utility model.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1, the tube evaporative condensing coil according to the present utility model includes an inlet tube 10 connected to a refrigerant inlet, an outlet tube 30 as a refrigerant outlet, and a plurality of intermediate tubes 20 connected in series and layered between the inlet tube 10 and the outlet tube, each of the intermediate tubes 20 is connected by a U-shaped connection tube 28, the outlet of the inlet tube 10 is connected to the inlet of the first intermediate tube by a U-shaped connection tube, and the outlet of the lowermost intermediate tube is connected to the inlet of the outlet tube 30 by a U-shaped connection tube.

Referring to fig. 3 and 4, the inlet duct 10 and the outlet duct 30 are defined in the present utility model to form a first plane a, and all or part of the central axis of the intermediate duct 20 is spaced from the first plane a by a distance, thereby forming a layered staggered condensing coil structure. Compared with the common evaporative condensing coil shown in fig. 2, the pipeline of each layer is positioned in a plane in the vertical direction, the refrigerant circulation track is vertically Z-shaped downwards, and the problem that the spraying area is limited due to shielding between the upper layer and the lower layer exists. Shielding between the pipelines of adjacent layers is greatly reduced, so that spray water can be sprayed down to be more easily, quickly and uniformly wrapped on the surface of the coil pipe, heat exchange is more uniform, the formation of scale on the surface of the coil pipe can be reduced, and the subsequent cleaning is more convenient.

In one embodiment, referring to fig. 1 and 3, a first intermediate pipe 21 connected to an outlet of the inlet pipe 10 is disposed at a distance d1 from the plane a, a second intermediate pipe 22 connected to an outlet of the first intermediate pipe 21 is disposed directly under the outlet pipe 10, a third intermediate pipe 23 connected to an outlet of the second intermediate pipe 22 is disposed at a distance d3 from the plane a, a fourth intermediate pipe 24 connected to an outlet of the third intermediate pipe 23 is disposed directly under the second intermediate pipe 22, and a fifth intermediate pipe 25 connected to an outlet of the fourth intermediate pipe 24 is disposed at a distance d5 from the plane a. For clarity of illustration and ease of description, the U-shaped connection tube is not shown. That is, the intermediate pipe of the present utility model may be provided as: the central axes of the odd-numbered intermediate pipes are located at a distance from the first plane, the central axes of the even-numbered intermediate pipes being located in the first plane, according to the sequential encoding of the layers of intermediate pipes from the inlet pipe to the outlet pipe from top to bottom. The distances between the intermediate pipes and the plane a may be equal or different, and fig. 3 shows the case where the distances are equal.

In another embodiment, referring to fig. 1 and 4, a first intermediate pipe 21 connected to an outlet of the inlet pipe 10 is located directly under the outlet pipe 10, a second intermediate pipe 22 connected to an outlet of the first intermediate pipe 21 is located at a distance d2 from the plane a, a third intermediate pipe 23 connected to an outlet of the second intermediate pipe 22 is located directly under the second intermediate pipe 22, a fourth intermediate pipe 24 connected to an outlet of the third intermediate pipe 23 is located at a distance d4 from the plane a, a fifth intermediate pipe 25 connected to an outlet of the fourth intermediate pipe 24 is located directly under the fourth intermediate pipe 24, and a sixth intermediate pipe 26 connected to an outlet of the fifth intermediate pipe 25 is located at a distance d6 from the plane a. For clarity of illustration and ease of description, the U-shaped connection tube is not shown. That is, the intermediate pipe of the present utility model may be provided as: the central axes of the even numbered intermediate pipes are located at a distance from the first plane, the central axes of the odd numbered intermediate pipes lying in the first plane, according to the sequential encoding of the layers of intermediate pipes from the inlet pipe to the outlet pipe from top to bottom. The distances between the intermediate pipes and the plane a may be equal or different, and fig. 4 shows the case where the distances are equal.

The intermediate pipe of the present utility model may also be provided with: adjacent intermediate pipes are sequentially positioned on two sides of the plane A, and the distances from the plane A can be equal or different. In one example, the adjacent intermediate pipes include a first pipe 27 and a second pipe 29, the first pipe 27 and the second pipe 29 are located on two sides of the first plane a, respectively, and a distance between a central axis of the first pipe 27 and the first plane a and a distance between a central axis of the second pipe 29 and the first plane a are equal. The distance between the central axes of the first pipe 27 and the second pipe 29 and the first plane a is equal to the layer height between the upper and lower pipes.

As shown in fig. 5, the U-shaped connection pipe of the present utility model includes a first straight pipe 2801, a second straight pipe 2802, and an arc-shaped pipe 2803 for connecting the first straight pipe 2801 and the second straight pipe 2802 together, the arc-shaped pipe 2803 being disposed such that both ends are not in one plane, so that the central axis of the first straight pipe 2801 and the central axis of the second straight pipe 2802 are not parallel.

In yet another embodiment, the tube-in-line evaporative condensing coil of the present utility model is used in an evaporative condenser. The evaporative condenser comprises the evaporative condensing coil, a cooling water spraying device and a fan are arranged above the evaporative condensing coil, a refrigerant enters the condensing coil from an air inlet pipe and flows to a liquid outlet along a pipeline, cooling water is sprayed on the surface of the condensing coil, and the fan makes air convect, so that refrigeration is realized through evaporation.

Claims

1. The utility model provides a pipeline evaporation formula condensing coil, its characterized in that includes inlet tube (10) of connection refrigerant entry, as the export pipeline (30) of refrigerant export, and connect a plurality of intermediate pipeline (20) of layering between inlet tube (10) and export pipeline in series, inlet tube (10) and export pipeline (30) constitute first plane A, and whole or part intermediate pipeline (20)'s central axis and first plane A have the distance.

2. The tube-in-one evaporative condensing coil according to claim 1, characterized in that adjacent intermediate tubes (20) are connected by a U-shaped connecting tube (28), the outlet of the upper intermediate tube is connected to the inlet of the U-shaped connecting tube (28), the outlet of the U-shaped connecting tube (28) is connected to the inlet of the lower intermediate tube, the U-shaped connecting tube (28) comprises a first straight tube (2801), a second straight tube (2802) and an arc-shaped tube (2803) for connecting the first straight tube (2801) and the second straight tube (2802), the arc-shaped tube (2803) is arranged such that the two ends are not in one plane, such that the central axes of the first straight tube (2801) and the second straight tube (2802) are not parallel.

3. The tube evaporative condensing coil according to claim 1, characterized in that the adjacent intermediate tubes (20) comprise a first tube (27) and a second tube (29), the first tube (27) and the second tube (29) being located on either side of the first plane a, respectively, the distance of the central axis of the first tube (27) from the first plane a and the distance of the central axis of the second tube (29) from the first plane a being equal.

4. A pipe evaporative condensing coil according to claim 3, characterized by the fact that the central axis of the first (27) and second (29) pipes is equidistant from the first plane a as the layer height between the upper and lower pipes.

5. The tube-in-line evaporative condensing coil according to claim 1, characterized in that the central axes of the odd-numbered intermediate tubes (20) are equidistant from the first plane a and greater than zero, the central axes of the even-numbered intermediate tubes (20) lying in said first plane a, according to the sequential encoding of the layers of tubes from the inlet tube (10) to the outlet tube (30) from top to bottom.

6. The tube-in-line evaporative condensing coil according to claim 1, characterized in that the central axes of the even-numbered intermediate tubes (20) are equidistant from the first plane a and greater than zero, the central axes of the odd-numbered intermediate tubes (20) lying in said first plane a, according to the sequential encoding of the layers of tubes from the inlet tube (10) to the outlet tube (30) from top to bottom.

7. An evaporative condenser comprising an evaporative condensing coil as claimed in any one of claims 1 to 6.