KR20170093513A - Refrigerant distributor and plate type heat exchanger for evaporator of air conditioning system having the same - Google Patents

Refrigerant distributor and plate type heat exchanger for evaporator of air conditioning system having the same Download PDF

Info

Publication number
KR20170093513A
KR20170093513A KR1020160015012A KR20160015012A KR20170093513A KR 20170093513 A KR20170093513 A KR 20170093513A KR 1020160015012 A KR1020160015012 A KR 1020160015012A KR 20160015012 A KR20160015012 A KR 20160015012A KR 20170093513 A KR20170093513 A KR 20170093513A
Authority
KR
South Korea
Prior art keywords
refrigerant
heat exchanger
plate
inlet port
type heat
Prior art date
Application number
KR1020160015012A
Other languages
Korean (ko)
Inventor
윤주영
Original Assignee
케이티씨 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 케이티씨 주식회사 filed Critical 케이티씨 주식회사
Priority to KR1020160015012A priority Critical patent/KR20170093513A/en
Publication of KR20170093513A publication Critical patent/KR20170093513A/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00—Component parts of trickle coolers
    • F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
    • F28F25/04—Distributing or accumulator troughs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

The present invention relates to a refrigerant distributor which allows a refrigerant introduced through a refrigerant inlet port of a plate-type heat exchanger used in an evaporator or the like in a refrigeration and air-conditioning system to be uniformly distributed to refrigerant flow channels formed in the heat exchanger and is able to prevent loss of the liquid refrigerant caused by a flashing phenomenon in which part of the liquid refrigerant is instantly vaporized in an expansion valve by adiabatic expansion, and to a plate-type heat exchanger for an evaporator of a refrigeration and air-conditioning system, having the refrigerant distributor. The plate-type heat exchanger for the evaporator of the refrigeration and air-conditioning system, according to the present invention, comprises the refrigerant inlet port and a refrigerant outlet port through which the refrigerant is introduced and discharged, and a plurality of channels communicating with the refrigerant inlet port and the refrigerant outlet port formed therein, wherein the refrigerant distributor is formed in the refrigerant inlet port. The refrigerant distributor is formed in a plate shape, and has a plurality of refrigerant distribution holes, which can reduce flashing of the refrigerant caused by the adiabatic expansion of the refrigerant while evenly distributing the refrigerant introduced through the refrigerant inlet port to each of the channels.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a refrigerant distribution plate, a plate type heat exchanger for the refrigerating and air conditioning system evaporator having the refrigerant distribution plate,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a plate type heat exchanger for a refrigerating and air-conditioning system evaporator, and more particularly, to a plate type heat exchanger used in an evaporator or the like, so that refrigerant flowing into a refrigerant inlet port is uniformly distributed to each refrigerant flow channel formed in a heat exchanger And a vaporization phenomenon of a part of the refrigerant due to flushing of the refrigerant which is thermally expanded at the expansion side is reduced, thereby improving the performance of the evaporator, and a plate heat exchanger having the same.

In general, when a plate heat exchanger is used as an evaporator in a vapor compression type refrigeration and air conditioning system, the amount of refrigerant flowing into the heat exchanger and the number of channels through which the refrigerant flows are distributed, It may not be distributed.

Particularly, when the number of channels through which the refrigerant flows and the flow rate of the refrigerant flowing therethrough is relatively small, the flow rate of the refrigerant supplied to each channel is increased in the channels disposed close to the refrigerant inlet portion of the heat exchanger, And the like.

In this case, when a large amount of refrigerant flows through the channel at the front end and a relatively small amount of refrigerant flows through the channel at the rear end, the heat exchanging area of the heat exchanger is not fully utilized, so that the evaporator capacity is decreased as a whole, .

In addition, flashing, which is a phenomenon in which a part of the liquid refrigerant vaporizes momentarily, is generated in the refrigerant that has been thermally expanded at the expansion side. Accordingly, when the piping length between the evaporator and the evaporator is short at the expansion side, the refrigerant can not recover the pressure, And the refrigerant flows into the evaporator, causing a loss of the liquid refrigerant amount, so that the performance of the evaporator may be deteriorated.

As a refrigerant distributing device installed in a conventional heat exchanger, there are a pipe type refrigerant distributing device, a cone type refrigerant distributing device, a ring type refrigerant distributing device, and a hot plate forming distributing device.

Here, in the case of the pipe-type refrigerant distributor, the refrigerant distribution pipe is inserted into the refrigerant distribution header of the plate-type heat exchanger, and one side of the inserted refrigerant distribution pipe is machined with a micro- The refrigerant flowing into the refrigerant distribution pipe is filled into the inside of the pipe and then flows into the refrigerant flow channel through the fine holes formed in the refrigerant distribution pipe evenly at a certain pressure after the refrigerant flowing into the refrigerant distribution pipe is filled into the inside of the pipe. So that the refrigerant can be evenly distributed to each channel.

In the case of the cone type refrigerant distribution device, a porous structure in the form of a sintered cone having a plurality of fine holes is mounted in the refrigerant distribution header of the heat exchanger, and the refrigerant introduced into the porous structure is uniformly distributed in the porous structure, So that the refrigerant can flow out evenly through each of the channels through the plurality of microholes.

Further, in the case of the ring-type refrigerant distributor, it is also possible to provide a distribution ring in which fine holes are formed in the refrigerant inflow portions of the respective channels of the heat exchanger so that the inflow refrigerant flows uniformly through the fine holes formed in the distribution ring, . ≪ / RTI >

Further, in the case of the hot plate forming and distributing apparatus, a semicircular fine hole corresponding to the fine hole shape of the ring-shaped refrigerant distributor is formed in the heat plate (heat transfer plate) itself, and a semicircular fine hole corresponding thereto is formed on the adjacent heat plate Shaped fine holes formed on both side heat plates in the stacking direction are brought into contact with each other to form circular fine holes so that the refrigerant can be evenly distributed from the predetermined pressure to the respective channels through the fine holes.

However, the conventional refrigerant distribution devices mounted in the heat exchanger in various forms as described above have the same advantage that the refrigerant can be uniformly distributed to the respective refrigerant flow channels of the heat exchanger. However, in the refrigerant distribution header of the heat exchanger, It is necessary to install a long pipe for distributing the refrigerant or to install a plurality of distribution rings per each channel, such that the installation volume of the refrigerant distribution device becomes large and the number of the installation is large, so that the assembling property of the heat exchanger is deteriorated, There is a problem that it increases.

Korean Patent Publication No. 2010-0032198 (Mar. 25, 2010)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a heat exchanger in which refrigerant can be easily mounted on a refrigerant inflow port of a heat exchanger, A refrigerant distribution plate for preventing liquid refrigerant loss due to flushing generated at the expansion side when the pipe length between the expansion side and the evaporator is small, and a plate for the refrigeration and air conditioning system evaporator to which the refrigerant distribution plate is applied And to provide a heat exchanger.

According to an aspect of the present invention, there is provided a refrigerant distribution plate for a vaporizer in the form of a plate heat exchanger, the plate having a plate shape and being mounted in a refrigerant inlet port of the heat exchanger, And a plurality of refrigerant distribution holes are formed to uniformly distribute the refrigerant to each refrigerant flow channel of the refrigerant flow channel and to reduce the vaporization phenomenon of the refrigerant due to the thermal expansion of the refrigerant.

The refrigerant distribution plate has a shape corresponding to the cross-sectional shape of the refrigerant inlet port and can be fixedly installed inside the refrigerant inlet port.

Further, the refrigerant distribution holes may be formed to have different diameters.

At this time, the diameter of the refrigerant distribution hole can be obtained by repeated calculation so that the refrigerant flowing through the refrigerant inflow port has a refrigerant outflow rate and a refrigerant outflow rate that can be evenly distributed to each refrigerant flow channel in the heat exchanger.

According to another aspect of the present invention, there is provided a heat exchanger for a refrigeration and air conditioning system, including a refrigerant inlet port and a refrigerant outlet port through which refrigerant flows in and out, and a plurality of refrigerant A refrigerant circuit for a refrigerant and air conditioning system in which a flow channel is formed, the refrigerant inlet port having a plate shape, the refrigerant flowing through the refrigerant inlet port is uniformly distributed to each refrigerant flow channel in the heat exchanger, A refrigerant distribution plate having a plurality of refrigerant distribution holes capable of suppressing vaporization of a refrigerant due to thermal expansion is provided.

Here, the refrigerant distribution plate may be installed so as to be disposed in a direction perpendicular to the longitudinal direction of the refrigerant inflow port.

The refrigerant inlet port may have a fixing protrusion protruding at a predetermined distance from the central portion so that the refrigerant distribution plate may be fixed.

According to the present invention having the above-described configuration, the refrigerant distribution plate having a predetermined thickness can be easily mounted on the refrigerant inflow port portion of the heat exchanger into which the refrigerant flows, and the refrigerant distribution plate It is possible not only to uniformly distribute the refrigerant to each refrigerant flow channel but also to reduce the refrigerant flushing at the rear end of the expansion valve, so that the performance of the evaporator can be improved.

In addition, the refrigerant distributing means for distributing the refrigerant to each refrigerant flow channel in the evaporator of the plate-type heat exchanger is not a bulky, expensive and numbered type, The manufacturing cost of the evaporator can be greatly reduced, the assembling property can be improved, and the internal structure of the evaporator can be realized in a simpler form.

1 is a partial perspective view of a heat exchanger having a refrigerant distribution plate according to the present invention;
FIG. 2 is an assembly view showing a state in which a refrigerant distribution plate according to the present invention is assembled into a refrigerant inflow port. FIG.
3 is a partially cutaway perspective view showing a state in which the refrigerant distribution plate is fixed inside the refrigerant inflow port.
4 is a front view and a side view showing front and side views of a refrigerant distribution plate according to the present invention;
FIG. 5 conceptually illustrates a state in which refrigerant is evenly distributed into each refrigerant flow channel of a heat exchanger by a refrigerant distribution hole formed in a refrigerant distribution plate; FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 5, a planar heat exchanger 100 for an evaporator of a refrigeration and air conditioning system according to an embodiment of the present invention includes a plurality of plates, which are press-molded in a concavo-convex shape, A plurality of channels (flow paths) through which coolant and coolant flow alternately, and different fluids flow alternately to the respective channels, and heat exchange can take place between the fluids, and a heat exchanger The refrigerant outlet port 120 communicating with the refrigerant flow channel 104 in the apparatus 100 forms a refrigerant inlet port 110 through which the refrigerant flows and a refrigerant outlet port 120 through which the refrigerant discharged from the refrigerant flow channel 104 flows out .

A cold water inflow port 140 communicating with the cold water flow channel 106 in the heat exchanger 100 is formed at the other side of the heat exchanger 100 and a cold water outflow port 150 is formed at the other side .

In the heat exchanger 100 of the present invention, the coolant introduced into the coolant inlet port 110 through the coolant inlet port 110 is introduced into each coolant flow channel (not shown) formed in the heat exchanger 100, And a refrigerant distribution plate 130 capable of reducing the loss of liquid refrigerant due to flashing occurring in the expansion side when the length of piping between the expansion side and the evaporator is short is installed do.

The refrigerant distribution plate 130 is formed in the shape of a thin circular metal plate and has a plurality of refrigerant distribution holes for uniformly distributing the refrigerant to the respective refrigerant flow channels 104 formed inside the heat exchanger 100, (132, 134).

The refrigerant distribution plate 130 is inserted into the refrigerant inlet port 110 and is disposed perpendicular to the longitudinal direction of the refrigerant inlet port 110, As shown in Fig.

The coolant distribution plate 130 may be formed to have various shapes corresponding to the cross-sectional shape of the inner passage of the coolant inlet port 110.

The refrigerant distribution plate 130 is installed at an inner end of the refrigerant inlet port 110 so as to face the center of the refrigerant inlet port 110 so that one side of the refrigerant distributor plate 130 can be fixed A fixing jaw 112 protruding with a constant width is formed.

The fixing jaw 112 is a portion where the inner diameter of the end of the refrigerant inlet port 110 is reduced to a predetermined width and the refrigerant distribution plate 130 is in close contact with the fixing jaw 112, And is fixed to the inner circumferential surface of the inflow port 110 through spot welding.

The end 114 of the refrigerant inlet port 110 formed to have the same inner diameter as that of the fixing jaw 112 is connected to each of the refrigerant flow channels 104 formed in the heat exchanger 100, And is coupled onto the outer surface of the cover plate 102.

As described above, in the refrigerant distribution plate 130 of the present invention, the refrigerant introduced through the refrigerant inlet port 110 flows out into the refrigerant distribution plate 130 of the present invention and flows into the respective refrigerant flow channels 104 inside the heat exchanger 100, A plurality of refrigerant distribution holes 132 and 134 functioning to distribute refrigerant can be formed.

Here, the plurality of refrigerant distribution holes 132 and 134 may have holes having the same diameter or may have different diameters. In this case, the diameter of each of the refrigerant distribution holes 132 and 134 may be determined by a predetermined calculation . ≪ / RTI >

For example, when the diameter of the refrigerant distribution plate 130 is 35 mm in the refrigerant distribution plate 130 configured as shown in FIG. 4, the large-diameter refrigerant distribution hole 132 located at the center is 10 mm, The small-diameter refrigerant distribution hole 134 disposed at the peripheral portion may be formed to have a size of 2.5 mm.

In this case, in the course of the refrigerant flowing into the refrigerant inlet port 110 through the refrigerant distribution holes 132 and 134 and flowing out to the respective refrigerant flow channels 104 inside the heat exchanger 100, The refrigerant flow pressure losses in the refrigerant distribution holes 132 and 134 positioned at the front and rear ends of the refrigerant distribution holes 130 and 130 are the same.

The flow rate of the refrigerant distributed and discharged to the respective refrigerant distribution holes 132 and 134 is determined under the precondition that the flow pressure loss in each of the refrigerant distribution holes 132 and 134 is the same as described above, Are also determined and thus distributed evenly within the refrigerant distribution header.

A method for calculating the refrigerant outflow pressure loss and the outflow amount of the other refrigerant in each of the refrigerant distribution holes 132 and 134 formed in the refrigerant distribution plate 130 is as follows.

That is, the pressure loss in each of the refrigerant distribution holes 132 and 134 formed in the refrigerant distribution plate 130 is reduced in order to flow into the refrigerant distribution holes 132 and 134 of the refrigerant distribution plate 130 in the refrigerant inlet port 110, And the expansion loss expanding to the refrigerant distribution header inside the heat exchanger 100 after passing through the refrigerant distribution holes 132 and 134 is present.

In this case, since the thickness of the refrigerant distribution plate 130 is very thin, the friction loss can be ignored.

In addition, the coefficients of the shrinkage loss and the expansion loss generated in the refrigerant distribution holes 132 and 134 formed in the refrigerant distribution plate 130 as described above can be obtained through experiments.

As a result, the pressure loss in each of the refrigerant distribution holes 132 and 134 formed in the refrigerant distribution plate 130 can be calculated through the following equation.

Figure pat00001

Here, dP is the pressure loss in the refrigerant distribution hole,

K con is the shrinkage loss coefficient, and K exp is the expansion loss coefficient.

Ρ ref is the density of the refrigerant, and V ref is the refrigerant velocity in the refrigerant distribution hole.

Since the pressure loss dP calculated in each of the refrigerant distribution holes 132 and 134 is the same in the refrigerant distribution holes 132 and 134, the refrigerant outflow velocity flowing out through the respective refrigerant distribution holes 132 and 134 can be obtained, The refrigerant flow rate divided by the refrigerant distribution holes 132 and 134 can be obtained by repeated calculation.

By varying the diameter of each of the refrigerant distribution holes 132 and 134, the refrigerant outflow rate and the refrigerant outflow rate are appropriately distributed to the respective refrigerant flow channels 104 of the heat exchanger 100, It is possible to distribute the refrigerant evenly to each of the refrigerant flow channels 104.

At this time, the positions and diameters of the refrigerant distribution holes 132 and 134 may be appropriately changed according to the number of the refrigerant flow channels 104, the refrigerant inflow flow rate, and the like.

In addition, the liquid refrigerant loss due to the flaking phenomenon that a part of the liquid refrigerant vaporizes instantaneously due to the thermal expansion at the expansion side is maintained through the refrigerant distribution plate 130 at the inlet of the evaporator, thereby reducing the loss of the liquid refrigerant . That is, by making the pressure higher than that of the evaporator at the front end of the refrigerant distribution plate 130, the evaporated refrigerant vapor instantaneously vaporized at the expansion side is returned to the liquid refrigerant at a relatively higher pressure than the evaporator, So that the heat of vaporization can be secured in the evaporator. This is because it is easier to liquefy at relatively high pressures and the refrigerant distribution plate 130 ensures a relatively high pressure space in the piping between the expansion valve and the evaporator, rather than the evaporator. Particularly, when the piping length between the expansion side and the evaporator is short, the problem of flushing can be more serious. Therefore, the effect of reducing the liquid refrigerant loss due to the flushing generated in the expansion side through the refrigerant distribution plate 130 Can be obtained.

 The thin plate shaped refrigerant distribution plate 130 having the refrigerant distribution holes 132 and 134 formed therein is installed inside the refrigerant inlet port 110 of the heat exchanger 100 and flows through the refrigerant inlet port 110 It is possible to distribute the refrigerant evenly inside the respective refrigerant flow channels 104 in the heat exchanger 100 and to reduce the loss of the liquid refrigerant due to the flushing occurring in the expansion side when the pipe length between the expansion side and the evaporator is short, The heat exchange performance of the heat exchanger 100 can be improved because the uniform heat exchange with respect to the entire area of the heat exchanger 100 and the heat of vaporization of the liquid refrigerant can be maximized.

In addition, since the installation is completed by a simple operation of fixing the plate-shaped refrigerant distributor plate 130 having a predetermined thickness to the inside of the refrigerant inlet port 110, the assembling performance of the heat exchanger can be improved and the assembling time can be shortened There is an advantage.

In addition, since a refrigerant distribution device having a large and complicated structure is not required to be installed inside the heat exchanger for smooth refrigerant distribution effect, it is possible to simplify the structure of the heat exchanger and reduce the manufacturing cost.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. Will be possible.

100: heat exchanger
102: Cover plate
104: Refrigerant flow channel
106: cold water flow channel
110: Refrigerant inlet port
112: Fixed chin
120: Refrigerant outflow port
130: Refrigerant distribution plate
132, 134: Refrigerant distribution hole

Claims (7)

And the refrigerant flowing in the refrigerant flow channel 104 inside the heat exchanger 100 is inserted into the refrigerant inlet port 110 of the heat exchanger 100 and the refrigerant flowing into the refrigerant inlet port 110 through the inside of the heat exchanger 100, , And a plurality of refrigerant distribution holes (132, 134) capable of reducing the vaporization phenomenon of the refrigerant due to the thermal expansion of the refrigerant are formed in the refrigerant distribution plate for the plate type heat exchanger.
The heat exchanger according to claim 1, wherein the refrigerant distribution plate (130) has a shape corresponding to a cross-sectional shape of the refrigerant inlet port (110) and is fixedly installed inside the refrigerant inlet port (110) Refrigerant distribution plate.
The refrigerant distribution plate for a plate-type heat exchanger according to claim 1, wherein the refrigerant distribution holes (132, 134) have a partly the same diameter or different diameters.
The compressor according to claim 1, wherein a diameter of the refrigerant distribution holes (132, 134) is greater than a diameter of the refrigerant flowing through the refrigerant inflow port (110) Wherein the refrigerant distribution plate is obtained by repeated calculation so as to have an outlet velocity and a refrigerant flow rate.
A plurality of refrigerant flow channels 104 communicating with the refrigerant inlet port 110 and the refrigerant outlet port 120 are provided in the refrigerant inlet port 110 and the refrigerant outlet port 120 in which the refrigerant flows in and out, In the plate-type heat exchanger for a refrigeration and air conditioning system,
In the refrigerant inlet port 110, the refrigerant flowing through the refrigerant inlet port 110 is uniformly distributed to each of the refrigerant flow channels 104 in the heat exchanger 100, Wherein a refrigerant distribution plate (130) having a plurality of refrigerant distribution holes (132, 134) capable of reducing a vaporization phenomenon of a refrigerant due to a single thermal expansion is provided in the plate type heat exchanger for a refrigerating and air conditioning system evaporator.
The plate-type heat exchanger according to claim 5, wherein the refrigerant distribution plate (130) is disposed in a direction perpendicular to the longitudinal direction of the refrigerant inlet port (110).
The plate type heat exchanger of claim 5, wherein the coolant inlet port (110) is formed with a fixing protrusion (112) protruding with a certain width toward the center side so that the refrigerant distributor plate (130) can be fixed.
KR1020160015012A 2016-02-05 2016-02-05 Refrigerant distributor and plate type heat exchanger for evaporator of air conditioning system having the same KR20170093513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160015012A KR20170093513A (en) 2016-02-05 2016-02-05 Refrigerant distributor and plate type heat exchanger for evaporator of air conditioning system having the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160015012A KR20170093513A (en) 2016-02-05 2016-02-05 Refrigerant distributor and plate type heat exchanger for evaporator of air conditioning system having the same

Publications (1)

Publication Number Publication Date
KR20170093513A true KR20170093513A (en) 2017-08-16

Family

ID=59752345

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160015012A KR20170093513A (en) 2016-02-05 2016-02-05 Refrigerant distributor and plate type heat exchanger for evaporator of air conditioning system having the same

Country Status (1)

Country Link
KR (1) KR20170093513A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11333448B2 (en) 2018-09-18 2022-05-17 Doosan Heavy Industries & Construction Co., Ltd. Printed circuit heat exchanger and heat exchange device including the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11333448B2 (en) 2018-09-18 2022-05-17 Doosan Heavy Industries & Construction Co., Ltd. Printed circuit heat exchanger and heat exchange device including the same

Similar Documents

Publication Publication Date Title
KR101462176B1 (en) Heat exchanger
JP6202451B2 (en) Heat exchanger and air conditioner
JP4887213B2 (en) Refrigerant distributor and air conditioner
WO2012176336A1 (en) Plate heater and refrigeration cycle device
US10168083B2 (en) Refrigeration system and heat exchanger thereof
JP6214789B2 (en) Laminated header, heat exchanger, and air conditioner
JP2008528945A (en) Heat exchanger with perforated plate in header
MX2007009252A (en) Parallel flow heat exchangers incorporating porous inserts.
EP3059542B1 (en) Laminated header, heat exchanger, and air-conditioner
JP2008528942A (en) Heat exchanger for multistage expansion of fluid in header
KR20100103399A (en) In-line heat-exchangers and methods of forming the same
JP4358981B2 (en) Air conditioning condenser
JP2017044428A (en) Heat exchanger, split flow component and heat exchanging device
JP2009222366A (en) Refrigerant distributor
JP2013057426A (en) Plate-type heat exchanger and freezing cycle device with the same
JP6188926B2 (en) Laminated header, heat exchanger, and air conditioner
US11892206B2 (en) Heat exchanger and refrigeration cycle apparatus
EP3314191A1 (en) Two phase distributor evaporator
EP2980510B1 (en) Expansion valve and cooling cycle device using same
JP6678235B2 (en) Heat exchanger
KR20170093513A (en) Refrigerant distributor and plate type heat exchanger for evaporator of air conditioning system having the same
JP2012172918A (en) Refrigerant liquid forced circulation type refrigeration system
JP2003214727A (en) Fluid distributor and air conditioner with the same
JP2017003189A (en) Shell-and-tube type heat exchanger
JP2013185757A (en) Refrigerant distributor, and heat pump device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application