KR101460250B1 - Plate Heat Exchanger including a 3-Piece Flow Path Layer - Google Patents

Abstract

A plate type heat exchanger including a three-piece flow channel layer includes a first plate having an outlet and an inlet to have fluid entered and exited; a second plate forming a flow channel groove to have the fluid flowed from the outlet position to the inlet position; and a third plate coupled to a lower portion of the second plate, wherein the first plate, the second plate, and the third plate are brazed and coupled.

Description

(Plate Heat Exchanger including a 3-Piece Flow Path Layer) including a 3-piece flow path layer,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate type heat exchanger including a 3-piece channel layer, and more particularly, to a plate type heat exchanger including a 3-piece channel layer having excellent durability.

Generally, a heat exchanger is a device that performs heat exchange between objects having different temperatures, and can indirectly transmit thermal energy without interfering with the physical properties of other objects. The heat exchanger is also used for heating purposes, such as heating and recovery of waste heat, and in a broad sense, for cooling purposes.

On the other hand, the flow path for flowing the internal fluid included in the heat exchanger is brazed (welded) to form a flow path.

Korean Patent Registration No. 10-0911158 relates to a welded plate type heat exchanger, and more particularly, to a heat exchanger for welded plate type heat exchanger which is formed by press working of a die for joining a heat transfer plate and heat- Plate type heat exchanger has been developed which can simplify the manufacturing process of the heat exchanger, reduce the production cost accordingly, and improve the productivity of the heat exchanger.

However, the flow path formed by brazing of the flow path has a problem that the joint portion or the brazed wall surface is weak in durability and is damaged due to pressure or impact, so that the inner fluid easily leaks to the outside.

Further, since the flow path of the heat exchanger is formed so as to flow from one surface to the opposite surface, there is a problem that the temperature difference between the heated fluid flowing into the heat exchanging device and the flowing fluid is extremely large.

Korean Patent Registration No. 10-0911158

In order to solve the above-mentioned problems, an object of the present invention is to provide a plate-type heat exchanger including a 3-piece channel layer having excellent durability by forming a channel with a 3-piece.

Another object of the present invention is to provide a plate-type heat exchanger including a 3-piece channel layer in which an inflow fluid and an outflow fluid are formed in an intersecting manner so that the temperature of the fluid is made uniform.

Another object of the present invention is to provide a plate-type heat exchanger including a 3-piece channel layer that provides a heating plate through which heat energy can be efficiently transferred.

In order to solve the above-described problems, the present invention provides a three-piece flow path layer comprising a first plate including an outlet and an inlet for a fluid to flow in and a flow path groove for flowing a fluid from the outlet position to the inlet position A second plate, and a third plate coupled to the second plate below, wherein the first plate, the second plate, and the third plate are brazed.

Also, the plate-type heat exchanger including the 3-piece channel layer of the present invention may include a first plate including a fluid outlet and an inlet, a second plate including a flow channel, a flow path layer formed by brazing a flat third plate, And a power supply layer including a heating layer including a heating element and a temperature sensor arranged along the flow path groove and a power supply terminal for supplying external power to the heating element and the temperature sensor.

The first plate of the 3-piece flow path layer of the present invention is further characterized by further comprising an inlet port unit including an outlet port for engaging with the fluid outflow path and an inlet port for engaging with the fluid feed path .

Further, the channel groove of the second plate of the channel layer composed of the 3-piece of the present invention is formed by laser machining.

Further, the flow channel of the second plate of the 3-piece flow path layer of the present invention is characterized by further comprising rib fins for fixing the flow channel.

Further, the flow channel of the second plate of the flow path layer composed of the 3-piece of the present invention is characterized in that the inflow fluid and the outflow fluid are formed so as to flow at an intersection.

In addition, the first plate of the 3-piece channel layer of the present invention further includes a plate guide protruding to fix the second plate and the third plate, and the second plate and the third plate And further comprises a guide groove.

Further, the third plate of the 3-piece channel layer of the present invention may further include a plate guide protruding to fix the first plate and the second plate, And further comprises a guide groove.

Further, the heating layer of the plate-type heat exchanger including the 3-piece passage layer of the present invention is characterized in that a region other than the region where the heat generating element is arranged is formed of a heat insulating material.

Also, the power supply terminal of the power supply layer of the plate type heat exchanger including the 3-piece channel layer of the present invention is characterized by supplying power in a contact connection manner.

As described above, according to the plate-type heat exchanger including the 3-piece channel layer according to the present invention, it is possible to form a channel with 3-piece and provide a channel having excellent durability.

Further, according to the plate-type heat exchanger including the 3-piece channel layer according to the present invention, the temperature of the flow-in fluid is equalized.

Also, according to the plate-type heat exchanger including the 3-piece channel layer according to the present invention, heat energy is effectively transferred to the fluid flowing through the channel.

1 is a perspective view showing a configuration of a 3-piece flow path layer according to the present invention.
2 is a perspective view illustrating an access port unit coupled with a flow path layer composed of 3-pieces according to the present invention;
3 is a perspective view and a cross-sectional view showing a second plate of a 3-piece channel layer according to the present invention.
4 is a perspective view showing a configuration of a plate-type heat exchanger including a 3-piece channel layer according to the present invention.
FIG. 5 is a rear view of a plate-type heat exchanger including a 3-piece passage layer according to the present invention, as viewed from the rear; FIG.

Specific features and advantages of the present invention will be described in detail below with reference to the accompanying drawings. The detailed description of the functions and configurations of the present invention will be omitted if it is determined that the gist of the present invention may be unnecessarily blurred.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate type heat exchanger including a 3-piece channel layer, and more particularly, to a plate type heat exchanger including a 3-piece channel layer having excellent durability.

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

FIG. 1 is a perspective view showing the construction of a 3-piece flow path according to the present invention, FIG. 2 is a perspective view showing an access port unit coupled to a 3-piece flow path according to the present invention, FIG. 4 is a perspective view illustrating the configuration of a plate-type heat exchanger including a 3-piece flow path according to the present invention, and FIG. 5 is a perspective view of a plate- Fig. 3 is a rear view of a plate-type heat exchanger including a 3-piece flow path according to the invention, as viewed from the rear; Fig.

1, the 3-piece flow path layer 100 according to the present invention includes a first plate 110 including an outlet for entering and exiting a fluid and an inlet 111, A second plate (120) forming a groove (121) from the exit position to an entrance position; and a third plate (130) coupled under the second plate, wherein the first plate, The third edition is brazed.

The flow path layer 100 composed of the first, second, and third plates as described above is resistant to pressure and impact as compared with the flow path layer formed by brazing (welding) the flow path formed halfway through the conventional pressing process Low leakage rate of fluid and excellent durability.

The first plate 110 includes a predetermined outlet for entering and exiting the fluid and an inlet 111. The fluid inlet 111 is located at a position where the flow channel 121 of the second plate 120 starts and ends .

The fluid introduced through the fluid inlet circulates through the flow path layer along the flow path formed in the flow path layer and is heated and then flows out to the outside through the fluid outlet.

Further, the fluid inlet is connected to the fluid supply path to supply the fluid, and the fluid outlet is connected to the fluid outflow path, so that the heated fluid flows out to the outside.

The second plate 120 forms a flow path groove 121 through which the fluid flows from the outlet position to the inlet position. The width of the flow channel formed in the second plate and the height of the second plate can be adjusted in order to control the fluid heating efficiency or the like depending on the use by adjusting the diameter of the flow channel.

A detailed description of the structure of the second plate will be described in more detail with reference to FIG.

The third plate 130 is a flat plate having a size equal to the size of the first plate and the second plate and is connected to the second plate below. The inner fluid flowing along the flow path is connected to the fluid inlet / And is brazed to the first and second plates so as not to be leaked outside.

The first plate 110 of the channel layer of the plate type heat exchanger including the 3-piece channel layer according to the present invention is formed by a plate guide 120, which is protruded to fix the second plate 120 and the third plate 130, And a plate guide 140. The second plate 120 and the third plate 130 further include guide grooves 150. The guide grooves 150 may be formed of a metal plate.

The third plate 130 of the channel layer of the plate type heat exchanger including the 3-piece channel layer according to the present invention may have a plate guide 130 protruded to fix the first plate 110 and the flow plate 120, The first plate 110 and the flow path plate 120 further include guide grooves 150.

The protruding plate guide and groove formed guide grooves may be fixed to each other by aligning guide grooves with the plate guides at the time of joining because the positions of the guide grooves are the same in each plate.

It is preferable that the plate guide and the guide groove include at least one per side of each plate so that they are fixed to each other. The plate guides and the guide grooves shown in Fig. 1 are two on the long side and one on the short side.

2, the first plate 110 of the 3-piece flow path layer 100 according to the present invention includes an outlet port for coupling with the fluid outflow path and an inlet port for coupling with the fluid feed path. (Not shown). The outlet port and the inlet port of the access port unit communicate with the fluid outlet and the inlet 111 of the first plate, respectively, so that the fluid enters and exits.

The outlet port unit 112 can be exchanged and an outlet port having various diameters and an inlet port unit including the inlet port can be combined with each other.

In order to prevent the fluid from flowing out to the outside from the fluid outlet of the first plate, the inlet 111 and the inlet port unit 112, an O-ring of elastic material is inserted into the first plate, As shown in FIG.

As shown in FIG. 3, the second plate 120 is a plate including a channel groove 121 for forming a channel between the first plate and the third plate.

The flow path groove 121 of the second plate 120 of the flow path layer composed of 3-pieces according to the present invention is formed by laser processing.

Further, the flow path groove 121 of the second plate 120 of the 3-piece flow path layer according to the present invention further includes a rib fingers 122 for fixing the flow path.

When the ribs 122 are formed as shown in the cross-sectional view of FIG. 3 during the process of forming the flow grooves through the laser processing device, the flow grooves may be fixed to each other to enhance the durability of the flow paths.

The flow grooves are completely opened from the upper surface to the bottom surface of the second plate, and the ribs are formed in a part of the flow grooves to connect the wall surfaces of the flow grooves to the wall surface. Since the rib flesh is an element that interferes with the flow of the fluid, it is formed only by the height having the minimum strength for fixing the flow path.

Also, when the second plate is manufactured in a compact size, the mold can be stably maintained. When the laser processing method is used, the flow path groove can be formed in a small size, so that the entire size of the flow path layer according to the present invention can be downsized.

In addition, the flow channel 121 of the second plate 120 of the flow path layer formed of the 3-piece of the present invention is formed such that the inflow fluid and the outflow fluid flow at an intersection.

When the flow grooves are formed so as to flow through the inflow fluid and the outflow fluid at an intersection, the temperature of the entire fluid is made uniform. As shown in FIG. 3, the starting and end portions of the flow path groove are formed near the outer surface of the second plate, and the fluid introduced into the starting portion of the flow path groove is formed in a spiral shape up to the center portion of the second plate. The fluid flowing along the groove and flowing to the central portion flows again along the flow channel formed in a spiral shape up to the end portion of the flow channel to be heated.

The fluid outlet and the fluid inlet are formed on one side of the first plate so that the flow path of the outflow fluid and the flow path of the inflow fluid are positioned adjacent to each other and the fluid paths adjacent to each other are formed so that the directions of the fluids flowing inside are opposite to each other. .

The inflow fluid and the outflow fluid flow through the adjacent flow path and mutual heat exchange is performed, so that the temperatures of the inflow fluid and the outflow fluid flowing through the inside will be equalized. The excessively heated effluent fluid flows through the adjacent flow path of the inflow fluid and transfers the excessive heat energy to the inflow fluid to properly control the temperature. The inflow fluid receives thermal energy from the outflow fluid to prevent rapid heating of the inflow fluid have.

As shown in FIG. 4, the plate type heat exchanger including the 3-piece channel layer according to the present invention includes a first plate including a fluid outlet and an inlet, a second plate including a channel groove, a flat third plate, A heating layer 200 including a heating element 210 and a temperature sensor 220 arranged along the flow path groove and a temperature sensor 220 and a power source for supplying external power to the heating element and the temperature sensor, And a power supply layer 300 including a terminal 310.

The flow path layer 100 includes a first plate including a fluid outlet and an inlet 111, a second plate including a flow path groove, and a flow path formed by brazing a flat third plate. And the second plate including the channel grooves is coupled between the first plate and the third plate to form a channel. The fluid introduced through the fluid inlet of the first plate flows along the flow path formed therein and flows out through the fluid outlet included in the first plate.

The heating layer 200 includes a heating element 210 and a temperature sensor 220 arranged along the flow channel. When the heating element is arranged along the flow path formed in the flow path layer, the fluid can be heated more efficiently than the structure including the heating element in the entire heating layer, and the energy loss can be reduced.

In addition, since the heating elements are included only in necessary areas, the overall surface temperature of the plate heat exchanger according to the present invention is lowered. This may be used for an electronic device including a heat-sensitive element.

The heating layer (200) of the plate-type heat exchanger including the 3-piece channel layer according to the present invention comprises a region other than the region where the heat generating element is arranged, as a heat insulating material.

If the thermal energy dissipated through the conductor adjacent to the heating element is lost before the thermal energy emitted from the heating element is transmitted to the fluid flowing through the flow path, heat energy to be transferred to the fluid is lower than that of the emitted heat energy, .

Accordingly, it is preferable that a region other than the region in which the heat generating element is arranged is made of a heat insulating material so that heat energy is transferred to the fluid without being lost.

The temperature sensor 220 measures the temperature of the fluid and the temperature of the heating element to measure the temperature for automatically controlling the temperature of the heat exchanger so that the temperature of the fluid is adjusted to a preset temperature or the heating element is not overheated. The temperature sensor prevents damage to the heat exchanger due to overheating and the temperature of the discharged fluid can be appropriately adjusted.

The power supply layer 300 includes a power supply terminal 310 for supplying external power to the heating element and the temperature sensor.

Further, the power supply terminal 310 of the power supply layer of the plate type heat exchanger including the 3-piece channel layer according to the present invention supplies power in a contact connection manner.

An external power supply line is connected to the power terminal 310 so that external power can be supplied. In order to supply external power to the heating element of the heating layer 200 and the temperature sensor, a conductor connected to the power source of the heating element and the temperature sensor must be connected to the power terminal. The conductor connected to the power source of the heating element and the temperature sensor should be disposed on the rear surface of the heating layer 200 shown in FIG. 4 and may be in contact with the power terminal when the channel layer, the heating layer, Should be located in an area where

In addition, since the power is supplied by the contact connection method, it is preferable that the heating layer and the power supply layer are closely contacted to each other so as not to be disconnected from the power terminal.

As shown in FIG. 5, the channel layer 100, the heating layer 200, and the power supply layer 300 are coupled together. The helical shape shown at the rear of the power supply layer is a shape in which a heating element of the heating layer 200 is arranged.

The two objects shown in the central part of the heat exchanger according to the invention shown in Fig. 5 are identical to the objects shown in a protruding form between the heating and power supply layers of Fig. 4, ) Is a device for automatic temperature control. The thermostat performs the switching operation as the temperature rises and falls.

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 taken as a limitation of the scope of the present invention. Or modify it. The scope of the invention should, therefore, be construed in light of the claims set forth to cover many of such variations.

100:
110: First Edition
111: fluid inlet
112: access port unit
120: Second Edition
121: Euro home
122: Liv Living
130: Third Edition
140: Plate Guide
150: Guide Groove
200: heating layer
210: Heating element
220: Temperature sensor
300: power supply layer
310: Power terminal

Claims (10)

delete A first plate including an outlet and an inlet for fluid to be introduced and withdrawn, a second plate having a flow channel for flowing the fluid to the outlet and an inlet, and a flat third plate coupled under the second plate, A flow path layer formed by brazing;
A heating layer including a heating element arranged in a spiral shape along the flow path groove and a temperature sensor;
And a power supply layer including a power supply terminal for supplying external power to the heating element and the temperature sensor,
The flow channel of the second plate is formed in a spiral shape so that the inflow fluid and the outflow fluid intersect with each other and the direction of the fluid flowing in the adjacent flow path is opposite to each other,
Wherein the heating layer comprises a heat insulating material in a region other than a region where the heat generating element is arranged,
A thermostat is provided between the heating layer and the power supply layer for automatic temperature control,
The first plate further includes an inlet port unit including an outlet port for coupling with the fluid outlet path and an inlet port for coupling with the fluid feed path,
And the flow channel of the second plate further includes ribs for fixing the flow channel
Plate-type heat exchanger including a 3-piece channel layer.
delete 3. The method of claim 2,
And the flow channel of the second plate is formed by laser machining
Plate-type heat exchanger including a 3-piece channel layer.
delete delete 3. The method of claim 2,
The first plate may further include a plate guide protruded to fix the second plate and the third plate, and the second plate and the third plate may further include a guide groove To
Plate-type heat exchanger including a 3-piece channel layer.
3. The method of claim 2,
The third plate may further include a plate guide protruded to fix the first plate and the second plate, and the first plate and the second plate may further include a guide groove To
Plate-type heat exchanger including a 3-piece channel layer.
delete 3. The method of claim 2,
And the power supply terminal of the power supply layer supplies power in a contact connection manner
Plate-type heat exchanger including a 3-piece channel layer.

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