CN1186946A

CN1186946A - Heat exchanger

Info

Publication number: CN1186946A
Application number: CN97117009A
Authority: CN
Inventors: 曺泳枓
Original assignee: Mando Machinery Corp
Current assignee: Mando Machinery Corp
Priority date: 1996-12-31
Filing date: 1997-09-25
Publication date: 1998-07-08

Abstract

A heat exchanger includes a first and a second main pipes which are separated from each other and a pair of separators; a plurality of pipelines extend between the two main pipes; the pipelines are provided with a plurality of refrigerant channels; the refrigerant is distributed in the refrigerant channels. A separator is axially inserted into the internal cavity of the first main pipe; the amount of the refrigerant gas distributed into the refrigerant channel rightly opposite to the direction of the air flows is relatively more than that of other refrigerant channels; the other separator is symmetrically inserted into the inner cavity of the second main pipe to form mirror-image relationship with the first separator.

Description

Heat exchanger

The present invention relates to heat exchanger; More particularly, relate to a kind of heat exchanger that is equipped with a pair of house steward that separate and that be connected by parallel pipeline substantially.

At present the heat exchanger of many types of using uses two house stewards that separate and that be connected by parallel pipeline substantially.Each pipeline has an open-ended coolant channel that supplies cold-producing medium to flow through at least.In many cases, dull and stereotyped or crooked fin is horizontal being connected on the pipeline between the house steward.Although also use this heat exchanger in many other applications, this heat exchanger is generally as automobile-used condenser.

Figure 1 shows that an automobile-used condenser commonly used, it comprises first and

second house stewards

10,15, a plurality of adjacent flat pipelines 20, this flat pipeline has a plurality of a plurality of open-ended coolant channel 21 (see figure 3)s that supply cold-producing medium from then on to flow through, a plurality of radiator units 30 that are arranged in two bendings between the adjacent pipeline 20, and first and

second baffle plates

41,42.

Each cylindrical

shape house steward

10,15 has a plurality of elongated holes that separate 11, and with flat pipeline 20 vertical arrangement.In addition, first house steward 10 has an inlet tube 12 to link to each other with the outlet of compressor (not shown), and second house steward 15 has an outlet 16 to link to each other with the import of receiver or drier (not shown).

As Fig. 2 clearly showed, pipeline 20 was connected on the

house steward

10,15 securely by the hole 11 on the

house steward

10,15, and its coolant channel 21 and each house steward's 10,15 internal cavities are connected.

Get back to Fig. 1, first baffle plate 41 is placed in first house steward 10 regularly and airtightly, is positioned at the centre position of total length of tube substantially and first house steward 10 is divided into upper part 13 and following part 14, and lower part 14 completely cuts off with upper part 13.Equally, second baffle 42 quilts are gentle being placed among second house steward 15 hermetically regularly, substantially be positioned at 1/3rd positions of second house steward, 15 length and second house steward 15 is divided into upper part 17 and lower part 18, lower part 18 completely cuts off with upper part 17.The position of second baffle 42 is lower than the position of first plate washer 41.

In this device, when refrigerant compressed gas from the upper part 13 of inlet tube 12 via first house steward 10, second house steward's 15 upper part 17, first house steward's 10 lower part 14 and second house steward's 15 lower part 18, when flowing through the coolant channel 21 flow inlet and outlet pipes 16 of pipeline 20, the heat of refrigerant gas with carry out heat exchange along arrow " W " direction flow air on every side, as shown in Figure 3.

Yet, in this heat exchanger, owing to divide the flow of the cold-producing medium in each coolant channel flow into pipeline orientation independent the same, that flow with air, so that the cold-producing medium in air-flow direction coolant channel far away relatively and the cold-producing medium of other refrigerant lines are compared heat exchange is insufficient.

Therefore, main purpose of the present invention provides a kind of heat exchanger, and this heat exchanger has the pair of separated device to be used to control to be diverted to the flow of the cold-producing medium in the pipeline coolant channel.

According to an aspect of the present invention, provide a kind of heat exchanger, having comprised: first and second house stewards of space, each house steward have a plurality of isolated holes; The pipeline identical with first house steward's number of perforations, each pipeline has a plurality of coolant channels to flow through from here for cold-producing medium, pipeline links to each other with house steward by house steward's hole, refrigerant line is communicated with, wherein the direction of the coolant channel of the direction that relatively flows to towards air of the coolant channel of half and other this direction dorsad with each house steward's internal cavities; First and second separators are used to control the flow of cold-producing medium, and cold-producing medium is divided to towards the refrigerant line of air-flow direction and remaining refrigerant line.

In conjunction with the accompanying drawings, from following description of preferred embodiments, above and other objects of the present invention and feature clearly, wherein:

Figure 1 shows that the front view of condenser commonly used;

Fig. 2 is the profile along Fig. 1 center line I-I;

Fig. 3 is the profile along Fig. 2 center line II-II;

Fig. 4 is the front view of condenser of the present invention;

Fig. 5 shows the sectional view of III-III along the line among Fig. 4;

Fig. 6 shows the profile of IV-IV along the line among Fig. 4;

Fig. 7 shows the sectional view of V-V along the line among Fig. 5;

Fig. 8 has provided the view that is arranged on a plurality of grooves on the separator of the present invention; And

Fig. 9 is the top view that has the baffle plate of groove of the present invention.

Figure 4 shows that the front elevation of condenser of the present invention.Condenser 50 of the present invention comprises apart from one another by first and

second house stewards

60,70 that open, a plurality of adjacent flat tubes 80, each flat tube has a plurality of coolant channel 81 (see figure 7)s, first and

second separators

90,93, be used to control the flow of the cold-producing medium in the coolant channel 81 that is diverted to pipeline 80, a plurality of radiator units 96 that are arranged in two bendings between the adjacent pipeline 80, and first and

second baffle plates

97,98.

First house steward 60 has first baffle plate to insert opening 61, and opening 61 is positioned at along near its length direction centre position, and with the elongated and spaced pipeline patchhole 62a of pipeline 80 similar numbers around it; Second house steward 70 has second baffle to insert opening 71, and opening 71 is positioned at along about 1/3rd places of its length direction, and with the elongated and isolated hole 72 of pipeline 80 similar numbers around it.It is low that opening 61 is inserted than first baffle plate in the position that second baffle inserts opening 71.In addition, first house steward 60 has an inlet tube 67 to link to each other with the outlet of compressor (not shown), and second house steward 70 has an outlet 77 to link to each other with the import of receiver or drier (not shown).

As shown in Figure 7, each pipeline 80 has a plurality of open-ended coolant channels 81 to flow through from here for cold-producing medium, wherein half coolant channel 82 opposite face to arrow " Z " (hereinafter, air flows to the coolant channel 82 of a side) shown in air-flow direction, and other coolant channels 83 are back to this direction (hereinafter, air flows out a side coolant channel 83).In addition, referring to Fig. 5 and 7, pipeline 80 is by

house steward

60,70 pipeline patchhole 62a, and 72 securely are connected on

house steward

60 and 70, and coolant channel 81 is linked to each other with each house steward's 60,70 internal cavities.

First separator 90 inserts first house steward's 60 internal cavities vertically, the air coolant channel 82 that flows to a side separates with the coolant channel 83 that air flows out a side in this way, divides to flow to flow-rate ratio air that air flows to the refrigerant gas in the side coolant channel to flow out the flow of the refrigerant gas in the side preparation passage 83 relatively large.In addition, first separator 90 is divided into first 63 and second portion 64 with first house steward's 60 inner chamber, and first 63 is connected with the coolant channel 82 that air flows into a side, and second portion 64 is connected with the coolant channel 83 that air flows out a side.Second separator 93 is inserted in second house steward's 70 the cavity vertically, and the coolant channel 82 that passes air into a side in this way and air flow out coolant channel 83 isolated the opening of a side.For example, second separator 93 is made 90 one-tenth mirror images of itself and first separator by symmetry insertion second house steward's 70 internal cavities.Similar to first separator 90, second separator 93 is divided into first 73 and second portion 74 with second house steward's 70 inner chamber, first 73 is connected with the coolant channel 82 that air flows into a side, and second portion 74 is connected with the coolant channel 83 that air flows out a side.In addition, as shown in Figure 8, first separator 90 has a plurality of pipeline insertion grooves 91 to insert for an end of each pipeline 80, and each groove 91 is arranged on each corresponding position of hole 62a with first house steward 60.The first baffle plate lock slots 92 is set on first separator 90, is positioned at first baffle plate insertion opening, 61 corresponding positions with first house steward 60.Equally, second separator 93 has a plurality of pipeline insertion grooves 94 to insert for the other end of each pipeline 80, and each groove 94 is arranged on each 72 corresponding position, hole with second house steward 70.On second separator 93 second baffle lock slots 95 is set, is positioned at second baffle insertion opening 71 corresponding positions with second house steward 70.On the other hand, on the above-mentioned inlet tube 67 groove 67a can be set, be used for fixing first separator 90, as shown in Figure 5, and groove 77a can be set on the above-mentioned outlet 77, be used for fixing second separator 93, as shown in Figure 6.

Get back to Fig. 4, first baffle plate 97 inserts opening 61 and the first baffle plate lock slots 92 by first baffle plate and is arranged on hermetically in first house steward 60 by fluid regularly, and first house steward 60 is divided into upper part 65 and lower part 66, and lower part 66 is isolated with upper part 65.Second baffle 98 inserts opening 71 and second baffle lock slots 95 by second baffle and is arranged on hermetically in second house steward 70 by fluid regularly, and second house steward 70 is divided into upper part 75 and lower part 76, and lower part 76 is isolated with upper part 75.As shown in Figure 9, first and

second baffle plates

97,98 are provided with a separator lock slots 99 respectively, be complementary with the first and second baffle

plate lock slots

92,95 on the

separator

90,93, first and

second baffle plates

97,98 mesh with first and second separators 9,93 respectively in this way.

During work, the condensing agent gas of compression flows to first house steward's 60 upper part 65 by inflow pipe 67, first and second parts 63 via

first house steward

60,64 and the air of pipeline 80 flow into the coolant channel 82 of a side and the coolant channel 83 that air flows out a side, be diverted to second house steward 70 upper part 75 than top.In this case, as shown in Figure 5, because because first separator 90 is inserted in first house steward 60, first house steward's 60 first 63 is more more relatively than the amount of the refrigerant gas in the second portion 64, and flow out the refrigerant gas of coolant channel 83 shuntings of a side than air more relatively so be positioned at coolant channel 82 that the air of the pipeline 80 above first baffle plate 97 flows into a side.Thereafter, second house steward, 70 upper parts 75 flow to it downwards than the lower part than the refrigerant gas in the top, and shunted, so part of refrigerant is through first and second baffle plates 97, each pipeline 80 between 98, flow into first house steward 60 lower part 66 than top.Being shunted again than the cold-producing medium in the top of first house steward's 60 lower part 66 makes part of refrigerant through being arranged in a plurality of pipelines 80 below the second baffle 98, flows into second house steward's 70 lower part 76.Finally, refrigerant gas is discharged in recipient or the drier by outlet 77.In this operation, the heat of refrigerant gas with carry out heat exchange along arrow " Z " direction flow air on every side, as shown in Figure 7.

Pipeline insertion groove 91 on first separator 90 in first house steward's 60 the upper part 65 preferably has the length that differs from one another, and makes that in this way the refrigerant gas that flows into from inflow pipe 67 is diverted in each pipeline 80 unevenly.For example, as Fig. 8 clearly illustrated, the pipeline insertion groove 91 of first separator 90 in first house steward's 60 the upper part 65 was far away more from inflow pipe 67, and its length is just short more.

In this condenser,, therefore the heat exchange performance of cooler is improved because the refrigerant gas that is diverted in refrigerant gas that air flows into the coolant channel of a side flows out a side than air the coolant channel is more relatively.

Although the present invention illustrates and describes by preferred embodiment, yet will be appreciated by those skilled in the art that as long as, can carry out various changes and modifications without prejudice to claim of the present invention institute restricted portion.

Claims

1. heat exchanger comprises:

First and second house stewards that are spaced apart from each other, each house steward have a plurality of isolated holes;

With the identical pipeline of number of perforations on first house steward, each pipeline has a plurality of coolant channels to allow cold-producing medium to flow through from here, and the hole of passing through house steward links to each other with house steward, its coolant channel is communicated with each house steward's internal cavities, wherein half refrigerating channel face direction that air flows into and other coolant channel back to this direction; And

First and second separators are used to control the flow that branch flows to the cold-producing medium of the coolant channel that faces the air inflow direction and other coolant channels.

2. heat exchanger as claimed in claim 1, wherein said first separator inserts first house steward's internal cavities vertically, make coolant channel and remaining coolant channel face the air inflow direction separate in this way, make interior bigger of all the other coolant channels of flow-rate ratio of being diverted to the refrigerant gas in the coolant channel that faces the air inflow direction; And above-mentioned second separator inserts second house steward's inner chamber vertically, makes the coolant channel and remaining passage that face the air inflow direction relatively separate in this way.

3. heat exchanger as claimed in claim 2, wherein said second separator are inserted into second house steward's inner chamber symmetrically and are become mirror with first separator.

4. heat exchanger as claimed in claim 2 also comprises a pair of plate washer, and each plate washer is set in each house steward, in this way each house steward is divided into upper part and lower part.

5. heat exchanger as claimed in claim 4, wherein said first separator is provided with the first plate washer lock slots, described second separator is provided with the second baffle lock slots, and each described baffle plate is provided with the separator lock slots corresponding respectively with the first and second baffle plate lock slots of separator, makes first and second baffle plates mesh with first and second separators respectively in this way.

6. heat exchanger as claimed in claim 4, wherein said first separator has a plurality of grooves, and in the end insertion groove of each pipeline, each groove all is arranged on the corresponding position, each hole with first house steward.

7. heat exchanger as claimed in claim 6, wherein the described groove in first house steward's the upper part has different length each other, makes coolant gas be diverted to unevenly in the pipeline above first baffle plate in this way.

8. heat exchanger as claimed in claim 2, wherein said second separator has a plurality of grooves, and in the end insertion groove of each pipeline, each groove all is arranged on the corresponding position, each hole with second house steward.

9. heat exchanger as claimed in claim 2, wherein said first house steward has an inlet tube that is used to accept cold-producing medium, inlet tube is provided with a groove that is used for fixing first separator, and described second house steward has an outlet that is used to discharge the cold-producing medium in second house steward, outlet to be provided with a groove that is used for fixing second separator.