CN211717249U - Connection structure of water inlet and outlet pipe assembly of V-shaped heat exchanger - Google Patents

Abstract

The utility model discloses a connection structure of a water inlet and outlet pipe assembly of a V-shaped heat exchanger, which comprises a water inlet collecting pipe and a water outlet collecting pipe. The water inlet collecting pipe is bent into a basic isosceles triangle and comprises a left water inlet inclined pipe, a right water inlet inclined pipe, a water inlet circular arc pipe connected between the upper ends of the left water inlet inclined pipe and the right water inlet inclined pipe and a horizontal straight water inlet pipe of which one end is connected with the lower end of the left water inlet inclined pipe; the other end of the water inlet horizontal straight pipe is a water inlet of the water inlet collecting pipe and is positioned on a vertex angle bisector of the water inlet collecting pipe; the water outlet collecting pipe is bent into a basic isosceles triangle and comprises a left water outlet inclined pipe, a right water outlet inclined pipe, a water outlet circular arc pipe and a water outlet horizontal straight pipe, wherein the water outlet circular arc pipe is connected between the upper ends of the left water outlet inclined pipe and the right water outlet inclined pipe, and one end of the water outlet horizontal straight pipe is connected with the lower end of the right water outlet inclined pipe; the other end of the water outlet horizontal straight pipe is a water outlet of the water outlet collecting pipe and is positioned on the vertex angle bisector of the water outlet collecting pipe. The utility model discloses a connection structure of business turn over water collector enables the medium flow distribution in each flow return circuit even to can obtain better heat transfer effect.

Description

Connection structure of water inlet and outlet pipe assembly of V-shaped heat exchanger

Technical Field

The utility model relates to a connection structure of business turn over water pipe assembly of V-arrangement heat exchanger.

Background

Based on economy, energy conservation and convenient maintenance, most of air conditioners of large-scale data center machine rooms adopt chilled water type machine room air conditioners. The air conditioner for freezing water machine room mainly includes fan, heat exchanger, water valve, control system and other fittings, and is characterized by that it mainly uses microprocessor to regulate the opening of two-way (or three-way) electric water valve and rotating speed of fan to regulate heat-exchange quantity of heat exchanger so as to match the change of indoor load. The V-shaped heat exchanger is a common structural mode of the air conditioner heat exchanger, and how to enable all branches of the V-shaped heat exchanger to be uniformly divided so as to obtain a better heat exchange effect is a technical problem which is worthy of attention. The technical research is also conducted in different forms by the industry scholars, equipment manufacturing enterprises and engineering technicians.

At present, aiming at the connection structure of a water inlet and outlet pipe assembly of a V-shaped heat exchanger, the industry adopts a mode that water is fed from the middle connection part of a water inlet collecting pipe 9 of a left heat exchanger 1 and a right heat exchanger 2 and water is discharged from the middle connection part of a water outlet collecting pipe 10, the structure is as shown in figure 1, the water inlet collecting pipe 9 and the water outlet collecting pipe 10 are both bent into an isosceles triangle structure, and the included angle between the vertex angle of the isosceles triangle and the included angle between the left heat exchanger 1 and the right heat exchanger 2 are the same; both ends of the water inlet collecting pipe 9 and both ends of the water outlet collecting pipe 10 are sealed by pipe caps and are positioned at the top end of the isosceles triangle, and the water inlet 8 of the water inlet collecting pipe 9 and the water outlet 7 of the water outlet collecting pipe 10 are both arranged in the middle of the bottom edge of the isosceles triangle. In the connection mode, the branch pipes 3 and 4 far away from the water inlet 8 and the water outlet 7 are longer than the branch pipes 6 and 5 near the water inlet 8 and the water outlet 7 in length, and the pressure drop generated under the same flow is larger, so that the heat exchange medium is unevenly distributed, the heat exchange effect of the heat exchanger is poorer, the water inlet collecting pipes 9 of the left heat exchanger 1 and the right heat exchanger 2 are gathered in the middle and the water outlet collecting pipes 10 in the middle through tee joints, the number of welding spots is more, and the hidden danger of leakage can be increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect and provide a connection structure of business turn over water pipe assembly of V-arrangement heat exchanger, it enables the medium flow distribution in each flow return circuit even to can obtain better heat transfer effect, and processing technology is simple.

The purpose of the utility model is realized like this: a connection structure of a water inlet and outlet pipe assembly of a V-shaped heat exchanger comprises a left heat exchanger, a right heat exchanger and the water inlet and outlet pipe assembly; the left heat exchanger and the right heat exchanger have the same structure and are connected in an inverted V shape; the left side heat exchanger and the right side heat exchanger comprise fin groups, and a front end plate, a rear end plate and a heat exchange tube which are respectively connected with the front end and the rear end of each fin group; the heat exchange tube comprises a plurality of straight tubes and a plurality of U-shaped elbows, the straight tubes are arranged in the through holes of the fin group in a penetrating manner, and the front ports and the rear ports penetrate through the through holes of the front end plate and the through holes of the rear end plate in a one-to-one correspondence manner; the U-shaped elbow is connected between the rear ports of the adjacent straight pipes and between the front ports of most adjacent straight pipes; the water inlet and outlet pipe assembly comprises a water inlet collecting pipe and a water outlet collecting pipe which are connected with the front ports of a small part of straight pipes, wherein,

the water inlet collecting pipe is bent into a basic isosceles triangle and comprises a water inlet left inclined pipe, a water inlet right inclined pipe, a water inlet circular arc pipe and a water inlet horizontal straight pipe, wherein the water inlet left inclined pipe and the water inlet right inclined pipe are symmetrically arranged, the water inlet circular arc pipe is connected between the upper end of the water inlet left inclined pipe and the upper end of the water inlet right inclined pipe, and one end of the water inlet horizontal straight pipe is connected with the lower end of the water inlet left inclined pipe; the included angle between the water inlet left inclined pipe and the water inlet right inclined pipe is the same as that between the left heat exchanger and the right heat exchanger; the other end of the water inlet horizontal straight pipe is a water inlet of the water inlet collecting pipe and is positioned on a vertex angle bisector of the water inlet collecting pipe; the lower end of the water inlet right inclined pipe is closed;

the water outlet collecting pipe is bent into a basic isosceles triangle and comprises a left water outlet inclined pipe, a right water outlet inclined pipe, a water outlet arc pipe and a horizontal water outlet straight pipe, wherein the left water outlet inclined pipe and the right water outlet inclined pipe are symmetrically arranged, the water outlet arc pipe is connected between the upper end of the left water outlet inclined pipe and the upper end of the right water outlet inclined pipe, and one end of the horizontal water outlet straight pipe is connected with the lower end of the right water outlet inclined pipe; the included angle between the left effluent inclined pipe and the right effluent inclined pipe is the same as that between the left heat exchanger and the right heat exchanger; the other end of the water outlet horizontal straight pipe is a water outlet of the water outlet collecting pipe and is positioned on a vertex angle bisector of the water outlet collecting pipe; the lower end of the water outlet left inclined pipe is closed.

The above connection structure of the water inlet and outlet pipe assembly of the V-shaped heat exchanger, wherein the water inlet manifold is arranged inside the water outlet manifold, and the water inlet is positioned right above the water outlet.

The utility model discloses a connection structure of business turn over water pipe assembly of V-arrangement heat exchanger has following characteristics: because the water inlet is arranged at the lower end of the water inlet collecting pipe and the water outlet is arranged at the lower end of the water outlet collecting pipe, the lengths of the pipes through which each branch far away from the water inlet and the water outlet flows are equivalent to those of the pipes through which each branch adjacent to the water inlet and the water outlet flows, the difference of water pressure drop of each branch is reduced, and then the flow distribution of the heat exchange medium in each flow circuit is uniform, so that a better heat exchange effect can be obtained; in addition, compare the middle junction business turn over water of the collector of left side heat exchanger and right side heat exchanger of prior art, still reduced tee junction, can reduce the solder joint, consequently reduced and revealed the hidden danger to processing technology is simple.

Drawings

FIG. 1 is a schematic view of a connection structure of a water inlet and outlet pipe assembly of a prior art V-shaped heat exchanger;

fig. 2 is a schematic view of the connection structure of the water inlet and outlet pipe assembly of the V-shaped heat exchanger of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 2, the connection structure of the water inlet and outlet pipe assembly of the V-shaped heat exchanger of the present invention includes a left side heat exchanger 1, a right side heat exchanger 2, and a water inlet and outlet pipe assembly; the left heat exchanger 1 and the right heat exchanger 2 have the same structure and are connected in an inverted V shape; the left heat exchanger 1 and the right heat exchanger 2 both comprise fin groups, and a front end plate, a rear end plate and a heat exchange tube which are respectively connected with the front end and the rear end of each fin group; the heat exchange tube comprises a plurality of straight tubes and a plurality of U-shaped elbows, the straight tubes are arranged in the through holes of the fin group in a penetrating manner, and the front ports and the rear ports penetrate through the through holes of the front end plate and the through holes of the rear end plate in a one-to-one correspondence manner; the U-shaped elbow is connected between the rear ports of the adjacent straight pipes and between the front ports of most adjacent straight pipes; the water inlet and outlet pipe assembly comprises a water inlet collecting pipe 9 'and a water outlet collecting pipe 10' which are connected with the front end of a small part of straight pipe;

the total length of the water inlet manifold 9 ' is less than that of the water outlet manifold 10, so that the water inlet manifold 9 ' is embedded in the water outlet manifold 10 ';

the water inlet collecting pipe 9' is bent into a basic isosceles triangle and comprises a water inlet left inclined pipe, a water inlet right inclined pipe, a water inlet circular arc pipe and a water inlet horizontal straight pipe, wherein the water inlet left inclined pipe and the water inlet right inclined pipe are symmetrically arranged, the water inlet circular arc pipe is connected between the upper end of the water inlet left inclined pipe and the upper end of the water inlet right inclined pipe, one end of the water inlet horizontal straight pipe is connected with the lower end of the water inlet left inclined pipe, and the included angle between the water inlet left inclined pipe and the water inlet right inclined pipe is the same as the included angle between; the lower end of the water inlet right inclined pipe is sealed by a pipe cap; the other end of the water inlet horizontal straight pipe is a water inlet 8 of a water inlet collecting pipe 9 'and is positioned on a vertex angle bisector of the water inlet collecting pipe 9';

the water outlet collecting pipe 10' is bent into a basic isosceles triangle and comprises a left water outlet inclined pipe, a right water outlet inclined pipe, a water outlet arc pipe and a water outlet horizontal straight pipe, wherein the left water outlet inclined pipe and the right water outlet inclined pipe are symmetrically arranged, the water outlet arc pipe is connected between the upper end of the left water outlet inclined pipe and the upper end of the right water outlet inclined pipe, one end of the water outlet horizontal straight pipe is connected with the lower end of the right water outlet inclined pipe, and the included angle between the left water outlet inclined pipe and the right water outlet inclined pipe is the same as the included angle; the lower end of the left water outlet inclined pipe is sealed by a pipe cap; the other end of the water outlet horizontal straight pipe is a water outlet 7 of a water outlet collecting pipe 10 'and is positioned on the bisector of the vertex angle of the water outlet collecting pipe 10', and the water outlet 7 is positioned right below the water inlet 8.

The utility model discloses a connection structure of inlet outlet pipe subassembly of V-arrangement heat exchanger, owing to establish water inlet 8 at the lower extreme of inlet manifold 9 ', establish delivery port 7 at the lower extreme of outlet manifold 10', make each branch road 3, 4 of keeping away from inlet outlet 8 equal with the pipe length that each branch road 5, 6 of neighbouring inlet outlet 8 flowed through, reduce the difference of each branch road water pressure drop, and then make the flow distribution of heat transfer medium in each flow circuit even, can obtain better heat transfer effect; in addition, compare the intermediate junction of the header of left side heat exchanger and right side heat exchanger of prior art and let in and out water, still reduced the tee bend and connected, can reduce the solder joint, consequently reduced and revealed the hidden danger.

The utility model discloses a connection structure of business turn over water pipe assembly of V-arrangement heat exchanger is applicable to modularization refrigerated water computer lab air conditioner, and processing technology is simple, and the connected mode, installation direction and the installation angle of business turn over water pipe assembly can be adjusted according to air conditioning unit's concrete requirement, and the form is nimble.

The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.

Claims (2)

1. A connection structure of a water inlet and outlet pipe assembly of a V-shaped heat exchanger comprises a left heat exchanger, a right heat exchanger and the water inlet and outlet pipe assembly; the left heat exchanger and the right heat exchanger have the same structure and are connected in an inverted V shape; the left side heat exchanger and the right side heat exchanger comprise fin groups, and a front end plate, a rear end plate and a heat exchange tube which are respectively connected with the front end and the rear end of each fin group; the heat exchange tube comprises a plurality of straight tubes and a plurality of U-shaped elbows, the straight tubes are arranged in the through holes of the fin group in a penetrating manner, and the front ports and the rear ports penetrate through the through holes of the front end plate and the through holes of the rear end plate in a one-to-one correspondence manner; the U-shaped elbow is connected between the rear ports of the adjacent straight pipes and between the front ports of most adjacent straight pipes; the water inlet and outlet pipe assembly comprises a water inlet collecting pipe and a water outlet collecting pipe which are connected with the front end opening of a small part of straight pipes,

the water inlet collecting pipe is bent into a basic isosceles triangle and comprises a water inlet left inclined pipe, a water inlet right inclined pipe, a water inlet circular arc pipe and a water inlet horizontal straight pipe, wherein the water inlet left inclined pipe and the water inlet right inclined pipe are symmetrically arranged, the water inlet circular arc pipe is connected between the upper end of the water inlet left inclined pipe and the upper end of the water inlet right inclined pipe, and one end of the water inlet horizontal straight pipe is connected with the lower end of the water inlet left inclined pipe; the included angle between the water inlet left inclined pipe and the water inlet right inclined pipe is the same as that between the left heat exchanger and the right heat exchanger; the other end of the water inlet horizontal straight pipe is a water inlet of the water inlet collecting pipe and is positioned on a vertex angle bisector of the water inlet collecting pipe; the lower end of the water inlet right inclined pipe is closed;

the water outlet collecting pipe is bent into a basic isosceles triangle and comprises a left water outlet inclined pipe, a right water outlet inclined pipe, a water outlet arc pipe and a horizontal water outlet straight pipe, wherein the left water outlet inclined pipe and the right water outlet inclined pipe are symmetrically arranged, the water outlet arc pipe is connected between the upper end of the left water outlet inclined pipe and the upper end of the right water outlet inclined pipe, and one end of the horizontal water outlet straight pipe is connected with the lower end of the right water outlet inclined pipe; the included angle between the left effluent inclined pipe and the right effluent inclined pipe is the same as that between the left heat exchanger and the right heat exchanger; the other end of the water outlet horizontal straight pipe is a water outlet of the water outlet collecting pipe and is positioned on a vertex angle bisector of the water outlet collecting pipe; the lower end of the water outlet left inclined pipe is closed.

2. The connection structure of the water inlet and outlet pipe assembly of the V-shaped heat exchanger as claimed in claim 1, wherein the water inlet header is provided inside the water outlet header, and the water inlet is positioned right above the water outlet.

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