KR101315648B1 - Plate-type heat exchanger - Google Patents

Abstract

The present invention relates to a plate heat exchanger, the plate-shaped plate formed in which the fluid inlet and the fluid outlet are spaced apart from each other; Sevron portion formed on the surface of the central portion of the plate including a protrusion and a depression, and is provided in a V-shaped or wavy pattern repeated shape; A fluid guide part provided in a lattice pattern inclined from an end portion of the sebron part in a direction in which the fluid inlet port or the fluid outlet port is formed; And a linear connection portion formed between the fluid inlet port or the fluid outlet port at the end of the fluid guide part. The height of the cross section of the fluid guide portion is characterized in that the fluid guide portion is formed higher toward the fluid inlet or the fluid outlet direction.
As a result, it is possible to improve the flow path of the fluid to have high performance at low pressure loss, to improve heat exchange efficiency, and to increase durability of the apparatus.

Description

Plate Heat Exchanger {PLATE-TYPE HEAT EXCHANGER}

The present invention relates to a plate heat exchanger.

The heat exchanger generally comprises a pair of header tanks through which the heat exchange medium is introduced and discharged, and a tube connecting the header tanks to heat exchange medium while circulating the heat exchange medium therein.

At this time, the heat exchanger can be divided into two types. The fin-tube type heat exchanger is formed by inserting a plurality of tubes into a tank, and the plate type heat exchanger in which a plurality of plates are stacked to form a tube part and a tank part. It can be divided into a plate heat exchanger.

Among them, plate type heat exchangers are widely used because they are easier to assemble and require fewer parts than other fin-tube type heat exchangers.

In particular, the plate heat exchanger changes the shape of the plate to allow a more complicated and diversified flow path design than the fin-tube type heat exchanger.

Accordingly, the plate heat exchanger is preferably applied to heat exchange between two kinds of fluids such as a water-cooled oil cooler and causing heat exchange with each other.

Meanwhile, the conventional plate heat exchanger determines heat exchange efficiency by considering only the area and pitch of the Severon formed on the heat exchanger plate, and does not consider the direction or pressure loss of the fluid flowing in the plate heat exchanger.

In particular, a method of increasing the stacking amount of the plate heat exchanger was used as a method for releasing the pressure loss, which causes a problem of increasing the size and weight of the heat exchanger.

Related prior arts include Korean Patent Application Publication No. 10-1206858 (Registration Date 12.11.26.), Which is used to improve fluid flow by configuring a fluid distribution guide with a sebron portion. Although it described a method that can be, there was a problem in maximizing heat exchange efficiency and preventing corrosion and damage inside the flow path.

The present invention has been made to solve the above problems, and the object of the present invention is to improve the heat flow efficiency of the fluid by improving the flow path of the fluid, and at the same time to improve the heat exchange efficiency and increase the durability of the apparatus. It is to provide the technology that can be.

According to the present invention, the plate-shaped plate is formed in the corner, the fluid inlet and the fluid outlet are spaced from each other; Sevron portion formed on the surface of the central portion of the plate including a protrusion and a depression, and is provided in a V-shaped or wavy pattern repeated shape; A fluid guide part provided in a lattice pattern inclined from an end portion of the sebron part in a direction in which the fluid inlet port or the fluid outlet port is formed; And a linear connection portion formed between the fluid inlet port or the fluid outlet port at the end of the fluid guide part. The height of the cross section of the fluid guide portion may be achieved by a plate heat exchanger that is formed as the fluid guide portion toward the fluid inlet or the fluid outlet direction.

Here, the protrusion and the depression of the Sevron portion are formed to be round.

In addition, the sebron portion further includes one or more fine wrinkles protruding in the longitudinal direction of the sebron portion.

Alternatively, the sebron portion may further include at least one fine wrinkle portion protruding in the vertical direction in the longitudinal direction of the sebron portion.

Here, the first set plate and the second set plate provided by stacking the even number of the first plate and the second plate, and the second set plate of which the inclination of the Sevron portion is different from each other May be combined and combined with each other to have different heat transfer channels.

In addition, the plurality of plates may be stacked to face each other to form a plate heat exchanger.

According to the present invention, it is possible to improve the flow path of the fluid, to have high performance at low pressure loss, to improve heat exchange efficiency, and to increase the durability of the device.

1 is a front view of a first plate of the plate heat exchanger according to the present invention.
2 is a front view of a second plate of the plate heat exchanger according to the present invention.
Figure 3 is an enlarged cross-sectional view showing the height of the fluid guide portion of the plate heat exchanger according to the present invention.
4 is a front view and a partially enlarged perspective view showing a fine wrinkle portion of the plate heat exchanger according to the present invention.

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

In the following description of the embodiments of the present invention, descriptions of techniques which are well known in the technical field of the present invention and are not directly related to the present invention will be omitted. In addition, detailed description of components having substantially the same configuration and function will be omitted.

For the same reason, some of the elements in the accompanying drawings are exaggerated, omitted, or schematically shown, and the size of each element does not entirely reflect the actual size. Accordingly, the present invention is not limited by the relative size or spacing depicted in the accompanying drawings.

The plate heat exchanger of the present invention described below is formed by stacking a plurality of plate-shaped plates, and supports to induce and distribute the fluid flowing in or out through the fluid inlet and outlet provided on the plate to the front of the plate. By supporting such a function, the plate heat exchanger of the present invention has a fluid flow path similar to that of the cross type, thereby facilitating the location of the fluid inlet and outlet, and using the fluid guide formed in the lattice pattern at the fluid inlet or the fluid outlet. By distributing the pressure by the generated fluid, it is possible to perform effective heat exchange. In addition, the present invention forms a fine wrinkle portion on the sebron portion to realize the maximized heat exchange efficiency by increasing the heat exchange area.

1 is a front view of a first plate of the plate heat exchanger according to the present invention, FIG. 2 is a front view of a second plate of the plate heat exchanger according to the present invention, and FIG. 3 is a fluid guide part of the plate heat exchanger according to the present invention. 4 is an enlarged cross-sectional view showing a height, and FIG. 4 is a front view and a partially enlarged perspective view showing a fine wrinkle portion of the plate heat exchanger according to the present invention.

1 to 4, the plate heat exchanger according to the present invention has a plurality of plates 10 coupled to each other in a stacked form, and each of the fluid inlet 12 and the fluid outlet 14 is formed in a plate-shaped corners spaced apart from each other Plate 10; Sevron portion 20 is formed to include a protrusion and a depression on the surface of the central portion of the plate 10, V-shaped or wave pattern is repeated; A fluid guide part 30 provided in a lattice shape inclined in a direction in which the fluid inlet 12 or the fluid outlet 14 is formed from an end of the sebron portion 20; And a linear connection portion 40 formed between the fluid inlet 12 or the fluid outlet 14 at the end of the fluid guide part 30. The height of the cross section of the fluid guide portion 30 is formed as the fluid guide portion 30 is directed toward the fluid inlet 12 or the fluid outlet 14.

The plate heat exchanger according to the invention comprises a plurality of plates 10. The plurality of plates 10 are stacked and arranged at predetermined intervals to allow the working fluid to flow between them. On each surface of the plate 10 is formed a Sebron portion 20 consisting of a protrusion and a depression. The plurality of plates 10 are stacked and arranged at predetermined intervals to allow the working fluid to flow therebetween. The plurality of plates 10 are stacked to be coupled to each other so that the working fluid flows in and out between them. Form a flow path.

Here, the plate 10 forms a fluid inlet 12 and a fluid outlet 14 on both sides of the upper edge, respectively, as shown in FIG. 1, and the fluid inlet 12 and the fluid outlet 14 on both sides of the lower edge, respectively. Form.

Here, after the fluid is introduced through the fluid inlet 12, the fluid is supported to flow to the fluid outlet 14 through the sebron portion 20. Accordingly, the fluid passes through the sebron portion 20 and exchanges its own energy with the sebron portion 20. In particular, the plate 10 constituting the plate heat exchanger according to the present invention is provided with a fluid guide portion 30 and the connecting portion 40 formed at the end of the sebron portion 20 is connected to the fluid flow through the fluid inlet 12 After the 40 and the fluid guide portion 30 is evenly distributed throughout the Sebron portion 20, and back to the fluid outlet 14 through the fluid guide portion 30 and the connecting portion 40 to support As a result, the heat exchange efficiency can be improved.

The sebron portion 20 includes a protrusion and a depression in the center portion of the plate 10 and is formed in a shape in which a wave pattern is repeated, and heat exchange between the fluids is performed in this area.

Here, the protrusions and the depressions are formed to be rounded, and the protrusions and the depressions are formed to be rounded by implementing the point contact of the recesses and the convex portions provided in the conventional angled shapes with a slight surface contact, thereby increasing the heat transfer efficiency, improving the strength, This is to expect the effect of minimizing deformation and stress concentration, increasing durability and corrosion resistance.

In addition, the sebron portion 20 further includes at least one micro wrinkle portion 22 protruding along the longitudinal direction of the sebron portion 20, as shown in FIG. 4.

Here, the fine wrinkle portion 22 is formed on the protrusions and depressions formed by the sebron portion 20, can maximize the heat transfer area per unit volume to realize the miniaturization of the device, round the fine wrinkle portion 22 It is formed so as to facilitate the formation of turbulent flow of the working fluid even at a low flow rate, and at the same time to prevent contact between the fluid and the air (sealing between the plates due to contact between the fine wrinkles) to prevent contamination of the plate 10 by the fluid It is effective.

In addition, the fine wrinkles 22 may be formed to protrude in the vertical direction in the longitudinal direction of the sebron portion 20, the direction of formation of such fine wrinkles 22 is applied differently depending on the installation environment of the heat exchanger Can be.

The fluid guide portion 30 is configured to guide the working fluid flowing in the turbulent flow form from the sebron portion 20 toward the fluid inlet 12 or the fluid outlet 14 and at the end of the sebron portion 20. It is provided in a grid pattern inclined toward the inlet 12 or the fluid outlet 14.

Here, the fluid guide portion 30 forms a protrusion and a depression like the sebron portion 20 and the overall shape forms a triangular triangular shape, and the fluid guide portion 30 formed on the upper side of the plate 10 is three The upper portion of the bronze portion 20 is provided in a triangular form with the bottom side, and the fluid guide portion 30 formed on the lower side of the plate 10 is provided in an inverted triangle form with the lower portion of the sebron portion 20 at the bottom side. .

In addition, by forming the fluid guide portion 30 in a grid pattern toward the fluid inlet or the fluid outlet, the fluid inlet and fluid outflow can be made quickly and accurately, by adjusting the height of the fluid guide portion to induce turbulent flow of the working fluid And promotion of inflow and outflow can be variously set.

Preferably, as shown in Figure 3, the height in the cross-section of the fluid guide portion 30 may be formed as the fluid guide portion 30 toward the fluid inlet 12 or the fluid outlet 14, Since the grid pattern is provided, the height of the fluid guide portion 30 may be higher than the central portion in both directions (fluid inlet and fluid outlet directions), thereby increasing heat transfer efficiency, improving strength, deformation, and stress. Minimize concentration, increase durability and corrosion resistance.

In addition, by changing the height of the fluid guide portion 30, it is possible to constantly adjust the flow rate of the fluid flow flow on the outflow and inflow path according to the length of the section of the movement path.

That is, as shown in Figure 3, the section having a long moving path (in order of V1-> V2-> V3-> V4), that is, the height of the V1 portion is increased, and the fluid guide in order (V2, V3, V4 order) By lowering the height of the part 30, the portion V1 of the fluid guide part 30 having the high height is formed with the highest flow rate, and as the flow rate is lowered sequentially, as a result, the entire sections V1 and V2. , V3, V4) fluid flow paths are different, but the inflow or outflow speed is set to be the same within the error range can be accurate and evenly spread of the fluid, thereby ensuring a high heat exchange efficiency.

The connection part 40 is configured to provide a path for guiding the fluid guided by the fluid guide part 30 directly to the fluid inlet 12 or the fluid outlet 14, and at the end of the fluid guide part 30. It is provided to form a straight fluid flow path between the 12 or the fluid outlet (14).

Here, the forming direction of the connecting portion 40 is formed in the direction toward the fluid inlet 12 or the fluid outlet 14, preferably as shown in Figure 1, each inlet or relative to the center line of the plate 10 or It may be formed in a direction opposite to the outlet.

Plate 10 provided in the above-described configuration is a plurality of large area is stacked to form a heat exchanger, according to the stacking Severon portion 20, the fluid guide portion 30 and the connection portion 40 is the path of fluid movement To form.

On the other hand, the heat exchanger according to the present invention may be configured by mutual coupling and combination of the first and second plates 10, the inclination of the sebron portion 20 is different from each other.

That is, after the first plate 10 of FIG. 1 is provided in even numbers, the first plate 10 in FIG. 2 is combined to form a first aggregate plate (not shown), and the second plate 10 of FIG. A second set plate (not shown) may be combined to form a stack, and the first set plate and the second set plate may be combined and combined with each other to form a plate heat exchanger having different heat transfer channels.

Here, in the case of the first plate, since the inclination of the sebron portion 20 is formed to be relatively lower than the second plate, there are advantages such as higher turbulent flow, higher heat transfer rate, and precise temperature control than the second plate, but high pressure loss. There is also a disadvantage that this occurs. In addition, in the case of the second plate, since the inclination of the sebron portion 20 is formed relatively higher than the first plate, there are disadvantages of low turbulent flow and low heat transfer rate compared to the first plate, but quick proximity and low setting temperature There is an advantage of pressure loss. Therefore, it is possible to implement a plate heat exchanger having different heat transfer channels by constructing an even number of plates having different characteristics as described above, which is composed of aggregate plates, and the aggregated plates are combined to suit the setting and requirements.

As described above, the plate heat exchanger according to the present invention improves the path flow by forming the path flow of the fluid into the sebron portion, the fluid guide portion and the connection portion provided in different shapes, and has high performance at low pressure loss. At the same time, the heat exchange efficiency can be improved, and the durability of the device can be increased.

As mentioned above, although the present invention has been described by way of limited embodiments and drawings, the technical idea of the present invention is not limited thereto, and a person having ordinary skill in the art to which the present invention pertains, Various modifications and variations may be made without departing from the scope of the appended claims.

Description of the Related Art [0002]
10: plate, first plate, second plate
12: fluid inlet 14: fluid outlet
20: Sebron
22: fine wrinkles
30: fluid guide part
40: connection part

Claims (6)

A plate-shaped plate formed at a corner such that the fluid inlet and the fluid outlet are spaced apart from each other;
Sevron portion formed on the surface of the central portion of the plate including a protrusion and a depression, and is provided in a V-shaped or wavy pattern repeated shape;
A fluid guide part provided in a lattice pattern inclined from an end portion of the sebron part in a direction in which the fluid inlet port or the fluid outlet port is formed; And
A linear connection portion formed between a fluid inlet port or a fluid outlet port at an end of the fluid guide part; Including;
The cross-sectional height of the fluid guide portion is formed as the fluid guide portion toward the fluid inlet or fluid outlet direction is formed higher
Plate heat exchanger. The method of claim 1,
The protruding portion and the recessed portion of the sebron portion are formed to be rounded.
Plate heat exchanger. The method of claim 1,
The sebron portion further comprises one or more fine wrinkles protruding along the longitudinal direction of the sebron portion
Plate heat exchanger. The method of claim 1,
The sebron portion further comprises at least one fine wrinkle portion protruding in the vertical direction in the longitudinal direction of the sebron portion
Plate heat exchanger. The method of claim 1,
The first and second plates of which the inclination of the Severon part is different from each other,
The first assembly plate provided by the stacking of the even numbered first plate and the second assembly plate provided by the stacking of the even numbered second plate are combined and combined with each other to have different heat transfer channels.
Plate heat exchanger. The method of claim 1,
Characterized in that the plurality of plates are stacked and provided so as to face each other.
Plate heat exchanger.

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