KR100954439B1 - Multi effect plate heat exchanger - Google Patents

Abstract

PURPOSE: A mutil-purpose plate heat changer is provided to reduce installation space for the heat changer and increase thermal efficiency by reducing heat loss. CONSTITUTION: A mutil-purpose plate heat changer is composed of first heating plates(10) and second heating plates(20). The first heating plates comprise a first inlet(11), a second outlet port(12), and a first auxiliary inlet(13). A first heat exchange medium(T1) enters to one end of the first inlet and escapes through the other end of the first inlet. First supplement water(S1) flow into the first auxiliary inlet. The second heating plates comprise a second inlet(21), a second outlet(22), and a second auxiliary inlet port(23). Second supplement water(S2) mixed with the second heat exchange media(T2) flows into the second auxiliary inlet port.

Description

Multi Effect Plate Heat Exchanger

The present invention relates to a multi-effect plate heat exchanger by making a single heat exchanger to serve as two heat exchangers, thereby making cold water or hot water of two or more different temperatures.

A plate heat exchanger has a metal plate that is easily moved, allowing hot water and cold water to flow through both ends thereof, whereby the heat of the hot water is transferred to the cold water and heated, or vice versa. In order to improve the heat transfer efficiency, the flow path is formed in a certain direction on the plate to improve heat transfer efficiency, and by forming irregularities on the surface where cold water or hot water flows, the contact area between heat exchange media is increased to maximize the heat transfer efficiency. It is made.

Referring to FIG. 1, the structure of a conventional plate heat exchanger is a structure in which heat exchange is performed while hot water and cold water cross each hot plate 100, and a structure capable of responding to a load by controlling a large or small number of plates. . The directions of hot water and cold water flow in opposite directions to increase the mutual temperature difference, thereby increasing heat exchange efficiency.

FIG. 1 shows the case where the plate heat exchanger is used for district heating (heating-heating) and the case for the ice heat storage system (cooling-cooling). In the general plate heat exchanger as shown in the drawing, a high temperature fluid and a low temperature fluid flow in opposite directions, and are used for heating or cooling a fluid by use. At this time, the heat exchange medium is a temperature change in the plate-type heat exchanger of the general type to heat exchange in a single utility method using two kinds of heat medium of the high temperature side and the low temperature side.

In other words, when the existing heat exchanger was used as a district heating hot water heat exchanger that supplies the preheating and reheating method, a plurality of heat exchangers had to be used, which increased the installation space and increased the cost of initial equipment purchase. In addition, there was a problem that the maintenance and maintenance costs also doubled, and a single heat exchanger alone could not take two or more kinds of cooling temperatures different from each other such as beverage cooling.

The present invention has been made to solve the above problems, an object of the present invention is to enable preheating and reheating in the district heating hot water supply using a single heat exchanger without installing a separate heat exchanger, cooling of oil or milk Alternatively, as a single heat exchanger in cooling of beverages and the like, it is possible to produce cooling oils having different temperatures or more, and cooling beverages or cold water.

As a result, it is possible to increase the cooling and heating efficiency, and to increase the efficiency, thereby achieving the reflection benefits such as the compactness of the energy energy and heat exchange equipment, the construction cost, and the reduction of the life cycle cost. In addition, the present invention provides a multi-effect plate heat exchanger capable of increasing utilization due to a reduction in initial installation cost due to a reduction in production cost.

Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

The present invention as a means for solving the above problems, by allowing the hot water and cold water flow alternately between a plurality of overlapping metal plates, the heat of the hot water is transferred to the cold water to heat the cold water, or conversely cold water In the plate heat exchanger to take the water to cool the hot water, the first heat exchange medium is mixed with the first inlet and the first outlet and the first heat exchange medium so that the first heat exchange medium is introduced from one end to move in the longitudinal direction and discharged to the other end A plurality of first heat transfer plates for puncturing a first auxiliary inlet for introducing supplemental water; A second heat exchange medium in which the inlet / outlet direction is opposite to the first heat exchange medium is mixed with the second inlet, the second outlet, and the second heat exchange medium to be discharged from one end and moved in the longitudinal direction and then discharged to the other end; 2 consisting of a plurality of second heat transfer plate perforated to form a second auxiliary inlet for introducing the replenishment water, wherein the plurality of first heat transfer plate and the second heat transfer plate is made of an alternating mutually arranged, overlapping or stacked It features.

In addition, the first heat exchange plate is formed with a plurality of second flow holes connected to the second inlet, the second outlet, the second auxiliary inlet, respectively, the second heat exchange medium flowing through each of the plurality of second flow holes It is characterized by being interrupted by a gasket so as not to be mixed with one heat exchange medium.

In addition, the second heat transfer plate is formed with a plurality of first flow holes connected to the first inlet, the first outlet, and the first auxiliary inlet, respectively, the first heat exchange medium flowing through each of the plurality of first flow holes It is characterized in that it is interrupted by a gasket so as not to be mixed with the heat exchange medium.

The first heat exchanger plate is configured to heat the second heat exchange medium primarily when the second heat exchange medium using cold water is heated through the first heat exchange medium using hot water to supply hot water and hot water to a user. The first supplementary water is introduced into the heat exchange medium through the first supplementary inlet, and the second supplementary heat medium is heated secondly while the first supplementary water and the first heat exchange medium are mixed. According to the input or the temperature at the time of input, the second heat exchange medium used for hot water and hot water can be discharged to the second outlet by varying the temperature.

In addition, the second heat exchanger plate is used as hot water and hot water supply at the place of use, and the temperature of the second heat exchange medium is increased by inflowing the second replenishment water having a lowered temperature into the second auxiliary inlet and mixing with the second heat exchange medium. Characterized in that.

In addition, the second heat exchange plate is a second heat exchange medium that cools the first heat exchange medium primarily when cooling the first heat exchange medium in which hot water is used through a second heat exchange medium in which cold water is used to supply cooling water to the user. The second supplementary water is introduced at a low temperature through the second auxiliary inlet, and the second supplementary water is secondly cooled while the second supplementary water and the second heat exchange medium are mixed. Alternatively, the temperature of the first heat exchange medium, which is used as the cooling water, may be discharged to the first outlet, depending on the temperature at the time of input.

In addition, the first heat exchange plate is discharged through the first auxiliary inlet through the first auxiliary heat inlet cooling the first heat exchange medium before the second heat exchange medium and the second heat exchange medium is cooled secondly The first auxiliary inlet and the first outlet are characterized in that for discharging two kinds of cooling water having different temperatures.

As described above, the present invention has the following effects since a single heat exchanger plays a role of two conventional heat exchangers.

1. Heat loss is less than that of two heat exchangers, so the thermal efficiency is increased.

2. High utilization because it can produce two or more kinds of hot or cold water with different temperature.

3. It takes up less space in the machine room because it reduces the space taken up by the heat exchanger.

4. The initial manufacturing equipment cost is reduced because the manufacturing cost of the device is reduced.

5. The installation work is simpler than the installation of two heat exchangers, which saves installation labor costs.

6. The compact design of the heat exchange equipment makes it easy to design the machine room and arrange the machine room equipment.

7. Maintenance cost and life cycle cost are reduced.

8. Two kinds of heating (cooling) sources with different temperatures can be used in one heat exchanger.

Before describing the various embodiments of the present invention in detail, it will be appreciated that the application is not limited to the details of construction and arrangement of components described in the following detailed description or illustrated in the drawings. The invention can be implemented and carried out in other embodiments and can be carried out in various ways. In addition, device or element orientation (e.g., "front", "back", "up", "down", "top", "bottom" The expressions and predicates used herein with respect to terms such as "," "left", "right", "lateral", etc. are used merely to simplify the description of the present invention, and related apparatus. Or it will be appreciated that the element simply does not indicate or mean that it should have a certain direction. Also, terms such as "first", "second", and "third", "fourth" are used in the present specification and appended claims for purposes of illustration and are of relative importance. Or it is not intended to represent or mean.

The present invention has the following features to achieve the above object.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Hereinafter, a multi-effect plate heat exchanger according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 2 to 5.

As illustrated, the multi-effect plate heat exchanger according to the present invention includes a first heat transfer plate 10 and a second heat transfer plate 20.

The plurality of first heat transfer plates 10 are as shown in FIGS. 2 to 5,

The first inlet 11 is formed in the upper left corner, and the first outlet 12 is formed in the upper right corner, between the first inlet 11 and the first outlet 12, that is, the upper end of the interruption side. 1 Auxiliary inlet 13 is formed perforated.

The first heat exchange medium T1 flows into the first inlet 11, and the first heat exchange medium T1 flows along the longitudinal direction of the first heat exchanger plate 10, and then the first outlet 12. When the first supplementary water S1 of high temperature or low temperature flows into the first auxiliary inlet 13 formed in the middle portion, the first supplementary water S1 is introduced into the first outlet 12 through the first inlet 11. The first heat exchange medium T1 that flowed is mixed with the first supplemental water S1 and discharged through the first outlet 12.

In addition, second flow holes d, e, and f are respectively formed in the lower left side, the lower end side, and the lower right side of the first heat exchanger plate 10, and the three second flow holes d, e, and f are respectively formed. ) Are formed at the lower end of the first outlet 12, the first auxiliary inlet 13, and the first inlet 11.

In addition, the first heat exchange plate 10 is connected to the first inlet 11, the first outlet 12, and the first auxiliary inlet 13 to connect the internal space so that the first heat exchange medium T1 can flow. A gasket 30 to be interrupted is formed on one surface to form a first flow space α.

According to an embodiment of the user, the heat transfer area of the first heat exchange medium T1 is widened to the first flow space α, that is, the surface on which the first heat exchange medium T1 flows in the first heat exchange plate 10. To this end, it may be possible to form the unevenness toward the longitudinal direction, and may also determine the uneven direction along the flow direction of the first heat exchange medium (T1).

As the plurality of second heat transfer plate 20 is shown in Figures 2 to 5,

Having the same shape as the first heat transfer plate 10, by rotating the first heat transfer plate 10 by 180 degrees (180 degrees) to be coupled to the upper or lower surface to the first heat transfer plate 10,

The second inlet 21 is drilled at the lower left, and the second outlet 22 is drilled at the lower right, and between the second inlet 21 and the second outlet 22, i. The two auxiliary inlets 23 are formed perforated.

The second heat exchange medium T2 flows into the second inlet 21, and the second heat exchange medium T2 flows along the length direction of the second heat exchanger plate 20, and then the second outlet 22. When the second supplementary water (S2) of the high temperature or low temperature flows into the second auxiliary inlet (23) formed in the middle of the interruption, through the second inlet 21 to the second outlet (22) The second heat exchange medium T2 that has flowed is mixed with the second supplemental water S2 and discharged through the second outlet 22.

In addition, the first flow holes (c, b, a) are formed in the upper left, the middle, and the upper right of the second heat transfer plate 20, respectively, and the three first flow holes (c, b, a). ) Are formed at the upper end side of the second inlet 21, the second auxiliary inlet 23, and the second outlet 22.

In addition, the second inlet 21, the second inlet 21, and the second auxiliary inlet 23 are connected to each other in the same manner as the first plate 10, so that the second heat exchange medium ( A gasket 30 is formed on one surface to control the internal space so that T2) may flow to form the second flow space β.

According to an embodiment of the user, the heat transfer area of the second heat exchange medium T2 is widened on the surface where the second heat exchange medium T2 flows in the second flow space β, that is, the second heat exchange plate 20. For example, the unevenness may be formed in the longitudinal direction, and the unevenness may be determined along the flow direction of the second heat exchange medium T2.

As shown in FIG. 4 or 5, the first heat transfer plate 10 and the second heat transfer plate 20 are alternately coupled to each other to form one heat exchanger. In this case, the first inlet 11 is connected to the first flow hole (a), the first auxiliary inlet 13 is connected to the first flow hole (b), the first outlet 12 is the first flow hole (c), in the case of the second heat transfer plate 20, the second inlet 21 is connected to the second flow hole (d), the second auxiliary inlet 23 is the second flow hole ( e), the second outlet 22 is connected to the second flow hole (f), respectively.

In addition, when cold water is used as the first heat exchange medium T1, hot water is used as the second heat exchange medium T2, and when the hot water is used as the second heat exchange medium T2, the first heat exchange medium T1. Of course, cold water may be used, and it may be able to be used as cooling water by heating the cold water to be used as hot water and hot water through mutual heat exchange, or by taking away the heat of the hot water and cooling the first and second heat exchange media (T1, T2) The flow direction is different from each other.

Hereinafter will be described the operation and principle of the preferred embodiment of the present invention having the configuration and structure as described above.

When using the heat exchanger of the present invention having the configuration as described above, to supply hot water and hot water supply to the use of buildings, homes, etc., as shown in Figures 2 and 4 to 5,

(For convenience of description, hot water is used as the first heat exchange medium T1, and cold water is used for the second heat exchange medium T2. Of course, the first heat exchange medium T1 is used as cold water, and Naturally, the heat exchange medium T2 may be used as hot water, and the temperature described below is used for convenience of description and is not an absolute dimension.)

The second heat exchange plate 20 is a second heat exchange medium (T2) (15 ° C), which is cold water to be used as hot water and hot water supply to the user through the second inlet 21, the second heat exchange medium (T2) is introduced It is discharged through the second outlet 22.

At this time, the first heat exchange medium T1 (115 ° C.), which is hot water, flows into the first inlet 11 of the first heat exchanger plate 10 coupled to the front end or the rear end of the second heat exchanger plate 20. After moving along the longitudinal direction of the first heat transfer plate 10 is discharged through the first outlet (12). As described above, while the first heat exchange medium T1 moves, the second heat exchange medium T2, which is coupled to the first heat exchanger plate 10 and is cold water, is primarily heated to be discharged through the second outlet 22. After the temperature of the second heat exchange medium T2 is increased (55 ° C.), the temperature is lowered (50 ° C.) and discharged through the first outlet 12. At this time, the first supplementary water (S1) (ex: high temperature of the first supplementary inlet 13 of the first heat transfer plate 10 (ex: in the case of a home, the heating return after being used for heating can be reused) (75 ° C.), the temperature of the first heat exchange medium (T1) dropped while heating the second heat exchange medium (T2) is mixed with the first replenishment water (S1). In this case, the second heat exchange medium T2 heated by only the first heat exchange medium T1 may be used as hot water and hot water supply due to an increase in temperature due to secondary heating being reheated.

In other words, depending on whether the first supplementary water S1 is introduced or not introduced through the first auxiliary inlet 13, the temperature of the second heat exchange medium T2 used as hot water and hot water can be changed. In addition, the temperature of the second heat exchange medium T2 discharged to the second outlet 22 may be changed depending on the temperature of the first supplemental water S1 introduced.

In addition, the second heat exchange medium (2) (ex: the second heat exchange medium (2) (ex: the second heat exchange medium that is already used as a hot water and hot water at the place where the temperature is lowered, but is introduced through the first second inlet 21) When the hot bath (35 ° C.) having a temperature higher than T2) is introduced and mixed with the second heat exchange medium T2, the temperature of the second heat exchange medium T2 is increased than when it is first introduced. It may be to be heated by the one heat exchange medium (T1).

(As described above, if the first and second heat exchange media T1 and T2 are used at different temperatures, the second heat transfer plate 20 is used as the first heat transfer plate 10 and the first heat transfer plate 10 is used. ) Can be used as the second heat transfer plate (20).

When using the heat exchanger of the present invention having the configuration as described above, to supply the cooling water having a different cooling temperature, as shown in Figure 3,

(For convenience of description, hot water is used as the first heat exchange medium T1, and cold water is used as the second heat exchange medium T2 in the same manner as in the above hot water and hot water supply. Naturally, the first heat exchange medium T1 may be used as cold water and the second heat exchange medium T2 may be applied as hot water.

In the case of the second heat exchanger plate 20, the second heat exchange medium T2, which is cold water, is introduced into the second inlet 21 (3 ° C.), and the second heat exchange medium T2 that is introduced is the second heat exchanger plate 20. After moving in the longitudinal direction of the, is discharged through the second outlet 22, in the case of the first heat transfer plate 10, the first heat exchange medium (T1) that is hot water is introduced into the first inlet (11) ( 30 ° C.), and the first heat exchange medium T1 introduced therein is moved along the longitudinal direction of the first heat exchanger plate 10, and then discharged through the first outlet 12.

In this case, the second heat exchange medium T2, which is cold water flowing through the second heat exchanger plate 20, flows from the second inlet 21 along the second outlet 22, and the front end of the second heat exchanger plate 20 or the like. The first heat exchanger plate 10 coupled to the rear end first cools the first heat exchange medium T1 to lower the temperature.

Of course, by cooling the first heat exchange medium T1, the temperature of the second heat exchange medium T2 is increased due to heat taken from the first heat exchange medium T1 (13 ° C.) and discharged to the second outlet 22. As will be appreciated, the first heat exchange medium T1 is reversely cooled (10 ° C.) and can be used as the desired cooling water for the user.

In addition, through the second auxiliary inlet 23 of the second heat exchanger plate 20, the second heat exchange medium T2 introduced into the low temperature second supplemental water S2 (the second inlet 21) may be replenished. (2 ° C.), the second supplemental water S2 is mixed with the second heat exchange medium T2, and the second temperature is increased by second cooling the first heat exchange medium T1. The temperature of the second heat exchange medium T2 may be lowered again to allow the first heat exchange medium T1 to be secondly cooled. Thus, whether the second supplement water S2 is added or the second supplement water S2 is supplied. ), The temperature of the first heat exchange medium T1 used as the cooling water may be varied and discharged to the first outlet 12 according to the temperature at the time of introduction of the c).

In addition, before the second supplemental water S2 and the second heat exchange medium T2 are mixed and the first heat exchange medium T1 is secondarily cooled, the first cooled heat exchange medium T1 is first cooled. By discharging through the first auxiliary inlet 13, two types of cooling water having different temperatures may be discharged through the first auxiliary inlet 13 (20 ° C.) and the first outlet 12 (10 ° C.).

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Various modifications and changes may be made without departing from the scope of the appended claims.

1 is a perspective view showing a conventional single-effect plate heat exchanger.

Figure 2 is an operation of one embodiment showing the flow of heat exchange medium in the first and second heat exchanger plate when used in the multi-effect plate-shaped heat exchanger shape and hot water and hot water according to the present invention.

Figure 3 is an operation of one embodiment showing the flow of heat exchange medium in the first and second heat exchanger plate when the multi-effect plate heat exchanger shape according to the present invention and the coolant is used when needed.

4 is a perspective view of FIG. 2;

Figure 5 is a perspective view of an embodiment showing a heat exchange medium flow when used for hot water and hot water using a multi-effect plate heat exchanger according to the present invention.

<Indication of symbols for main parts of drawing>

10: first heat transfer plate 11: first inlet

12: First Outlet 13: First Auxiliary Inlet

20: second heat transfer plate 21: second inlet

22: Second Outlet 23: Second Auxiliary Inlet

30: gasket S1: first supplementary water

S2: second supplementary water T1: first heat exchange medium

T2: second heat exchange medium a, b, c: first flow hole

d, e, f: second flow hole

Claims (7)

In a plate heat exchanger in which hot water and cold water alternately flow between a plurality of overlapping metal plates, the heat of the hot water is transferred to the cold water to heat the cold water, or conversely, the cold water takes heat away and cools the hot water. A first mixed with the first inlet 11 and the first outlet 12 and the first heat exchange medium (T1) to allow the first heat exchange medium (T1) is introduced from one end to move in the longitudinal direction and then discharged to the other end. A plurality of first heat transfer plates 10 for punching the first auxiliary inlet 13 through which supplemental water S1 is introduced; A second inlet 21 and a second outlet for allowing the second heat exchange medium T2 having an inflow / outflow direction opposite to the first heat exchange medium T1 to be discharged from one end and moved in the longitudinal direction to be discharged to the other end. And a plurality of second heat transfer plates 20 boring the second auxiliary inlet port 23 for introducing the second supplementary water S2 mixed with the second heat exchange medium T2. The plurality of first heat exchanger plate 10 and the second heat exchanger plate 20 forms an alternating mutually, the multi-effect plate-type heat exchanger, characterized in that the overlapping or stacked is made. The method of claim 1, The first heat transfer plate 10 is A plurality of second flow holes d, e, f connected to the second inlet 21, the second outlet 22, and the second auxiliary inlet 23, respectively, are formed in the perforations, and the plurality of second flows And the second heat exchange medium (T2) flowing through each of the balls (d, e, f) is interrupted by a gasket (30) so as not to be mixed with the first heat exchange medium (T1). The method of claim 1, The second heat transfer plate 20 A plurality of first flow holes (a, b, c) connected to the first inlet 11, the first outlet 12, and the first auxiliary inlet 13 are formed in a plurality of first flows, respectively. And the first heat exchange medium (T1) flowing through each of the balls (a, b, c) is interrupted by a gasket (30) so as not to be mixed with the second heat exchange medium (T2). The method of claim 1, The first heat transfer plate 10 is When the second heat exchange medium T2 in which cold water is used is heated through the first heat exchange medium T1 in which hot water is used to supply hot water and hot water to the user, The first supplementary water S1 is introduced into the first heat exchange medium T1 that primarily heats the second heat exchange medium T2 through the first auxiliary inlet 13, and the first supplement water ( S1) and the first heat exchange medium (T1) is mixed while the second heat exchange medium (T2) is heated secondly, depending on whether the first supplementary water (S1) or the temperature at the time of use, used as hot water and hot water supply Multi-effect plate heat exchanger characterized in that the second heat exchange medium (T2) to be discharged to the second outlet 22 by varying the temperature. The method of claim 4, wherein The second heat transfer plate 20 The second heat exchange medium T2 is introduced into the second auxiliary inlet 23 by mixing the second supplementary water S2 that has already been used as hot water and hot water at the place of use and lowered into the second auxiliary inlet 23. Multi-effect plate heat exchanger, characterized in that to increase the temperature of. The method of claim 1, The second heat transfer plate 20 When the first heat exchange medium (T1) using hot water is cooled through the second heat exchange medium (T2) using cold water to supply cooling water to the user, The second replenishment water S2 is introduced into the second heat exchange medium T2 that primarily cools the first heat exchange medium T1 through the second auxiliary inlet 23, and the second replenishment water ( The second heat exchange medium T2 is mixed with S2) and the first heat exchange medium T1 is secondly cooled, and the second supplemental water S2 is used as cooling water depending on whether the second supplementary water S2 is added or the temperature at the time of addition. A multi-effect plate heat exchanger characterized in that it can be discharged to the first outlet (12) by varying the temperature of the first heat exchange medium (T1). The method of claim 6, The first heat transfer plate 10 is Before cooling the first heat exchange medium T1 to the secondary while the second supplemental water S2 and the second heat exchange medium T2 are mixed, the first auxiliary heat exchange medium T1 that has been cooled first is first aided. By discharging through the inlet (13), through the first auxiliary inlet (13) and the first outlet (12) it is possible to discharge the two types of cooling water having a different temperature.

Images