KR100591141B1 - Plate heat exchanger with condensed fluid separating function and its manufacturing method - Google Patents

Abstract

The present invention relates to an integrated plate heat exchanger having a cooling function and a separatoring function of condensate generated during cooling, and a method of manufacturing the same. More specifically, the separator is connected to the outside of the plate heat exchanger by a pipeline and is integrated inside the plate heat exchanger. As a result, the heat transfer loss due to the flow path connecting the separator to the Richter and the chiller as in the prior art is prevented, the discharge efficiency of the condensate is maximized, and the condensate separator function can reduce the size and weight of the refrigerated air dryer products. An integrated plate heat exchanger and a method for easily manufacturing the same.

According to the present invention, a plurality of corrugated heat transfer plates are stacked, and the inlet and outflow holes which differ in the compressed air flow path therein are formed; A chiller having a plurality of corrugated heat transfer plates stacked therein, a refrigerant inlet and a refrigerant outlet connected to the refrigerant passage, and a compressed air passage formed therein; In the plate heat exchanger consisting of a wall pipe for partitioning the Richter and the chiller while providing a conduit for communicating the compressed air to the Richter and the chiller; Separator is formed in the lower portion of the chiller, the compressed air cooled by the chiller on the channel to the Richter, a cohesive chamber is formed in the lower portion of the Richter connected to the adiabatic expansion chamber, the agglomeration network is installed in the coagulation chamber A plate heat exchanger having a rating function; Configuring a Richter to form agglomeration chamber and a conduit by stacking and brazing a plurality of heat transfer plates having holes for forming an agglomeration chamber and a hole for forming a conduit, and forming a hole and a channel for forming an adiabatic expansion chamber and a refrigerant inlet Integral plate heat exchange with condensate separating function including the step of configuring the chiller to form a heat insulation expansion chamber, a pipe, a refrigerant inlet pipe, and a refrigerant outlet pipe by stacking and brazing a plurality of heat transfer plates having holes for forming the pipe and the refrigerant outlet pipe. Methods of making groups are provided.

Plate Heat Exchanger, Separator, Aggregate Mesh, Heat Transfer Plate

Description

Plate heat exchanger with condensed fluid separating function and its manufacturing method

1 is a full exploded perspective view of the present invention

2 is a cross-sectional view of the present invention

Figure 3 is a flow diagram of the fluid according to the present invention

※ Explanation of codes for main parts of drawing

1a, 1b: heat transfer plate 2: inflow hole

3: outflow hole 4: Richter

5: refrigerant inlet 6: refrigerant outlet

7: chiller 8: heat insulation expansion chamber

9: aggregated network 10: wall tube

11: counter facing Richter 12: counter facing Chiller

13: Communication hole 14a, 14b, 14c, 14d, 14e: pipeline

15: refrigerant inlet pipe 16: refrigerant outlet pipe

17: drain hole 18: agglomeration chamber

100: plate heat exchanger

The present invention relates to a plate heat exchanger having a condensate separator function and a method for manufacturing the same, and more particularly, by forming a separator connected to the outside of the plate heat exchanger by a conduit integrally in the plate heat exchanger. Integrated plate heat exchanger with condensate separation function to prevent heat transfer loss due to flow path connecting the separator to chiller and chiller, maximize the discharge efficiency of condensate, miniaturize and lighten the refrigeration air dryer products and easily It relates to a method that can be manufactured.

Plate heat exchanger (plate heat exchanger) is used to convert hot compressed air into cold compressed air, it is used as a component of the air drier (air drier). The air dryer is a device for converting high temperature and high humidity saturated compressed air into compressed air in a low temperature dry state so that it can be used in various industrial equipment, and is composed of a plate heat exchanger and a separator.

Thus, the plate heat exchanger stacks a plurality of heat exchanger plates formed in an uneven shape in consideration of the type of fluid, the flow path, and strength, and the hot and humid compressed air, which is a hot side, between the layers, and the hydrothermal fluid ( It is a device that heat exchanges by alternately flowing a refrigerant such as cold side. That is, the interlayer flow path between the heat transfer plates is blocked from the atmosphere and the adjacent flow paths, and two different fluids are separated by the heat transfer plate and flow in counter flow. As they cross, heat exchange takes place.

The plate heat exchanger is partitioned into partitions of the reheater and the chiller by partition walls, and a separator connected to the chiller and the richter is connected to the outside of the plate heat exchanger. Here, the separator is a device that separates the condensed water condensed by heat exchange in the chiller from the compressed air of the low temperature drying, and sends only the compressed air of the low temperature drying to the Richter.

Therefore, the saturated compressed air of the high temperature and high humidity compressed by the compressor flows into the inlet hole of the plate heat exchanger and is primarily heat exchanged with the compressed air of the low temperature drying in the Richter to be cooled and transferred to the chiller to perform the second heat exchange with the refrigerant. It enters into the separator and separates moisture and compressed air of low temperature drying, and compressed air of low temperature drying enters Richter again and is discharged after 3rd heat exchange with compressed air of high temperature and high humidity.

Since the conventional plate heat exchanger has a structure in which condensate cannot be separated by itself, a separate separator is installed outside, and the separator is connected to the chiller and the richer of the plate heat exchanger by external piping. . Therefore, the conventional air dryer needs more space for the separator to be installed, and thus there is a problem that it cannot be miniaturized and reduced in weight, and there are problems such as heat transfer loss caused by the flow path connecting the separator to the richer and the chiller.

An object of the present invention is to prevent excessive installation space and heat transfer loss by the connection pipe between the separate condensate separator and the plate heat exchanger, which is a conventional problem as described above, and to significantly reduce the manufacturing cost.

In order to achieve the above object, the present invention provides a heat-insulating expansion chamber for separating the moisture from the high temperature and high humidity air in the chiller so that the internal structure of the plate heat exchanger has the function of a separator to make compressed air of low temperature drying. In order to re-extract the moisture remaining in the compressed air of the low temperature drying, a cohesive mesh is installed inside the Richter, so that the plate heat exchanger is compact and lightweight, and the integrated plate heat exchanger having a condensate separation function that reduces heat loss and easily. To provide a method for manufacturing the same.

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

1 is an exploded perspective view of the present invention, Figure 2 is a cross-sectional view of the present invention, Figure 3 is a flow diagram of the compressed air and the refrigerant according to the present invention.

As shown in FIGS. 1 and 2, the integrated plate heat exchanger having the condensate separator function according to the present invention has a plurality of corrugated heat exchangers 1a stacked therein, and two internal air flow paths are formed by the stacked heat transfer plates 1a. A Richter 4 formed to be connected to the inlet hole 2 and the outlet hole 3, respectively; A plurality of corrugated heat transfer plates 1b are stacked to form two internal flow paths, and a coolant inlet 5 and a coolant outlet 6 connected to a flow path through which a coolant flows are formed. In the plate heat exchanger 100 consisting of a chiller (7) formed to flow; In the lower part of the chiller 7 which is the air cooled by the chiller 7 to the Richter 4, the heat insulation expansion chamber 8 in which the multiple air flow paths formed in the chiller 7 are combined is formed, An agglomeration chamber 18 provided with an agglomerate network 9 is provided at a lower portion of the Richter 4 connected to the thermal expansion chamber 8.

Here, in each heat-transfer plate 1a which is laminated | stacked several times and comprises the richer 4, the hole which forms the cohesion chamber 18 and the conduits 14a, 14b, 14e is drilled, respectively. In addition, each of the heat transfer plates 1b constituting the chiller 7 also has holes for forming the heat insulation expansion chamber 8 and the pipe line 14c, and holes for forming the coolant inlet pipe 15 and the coolant outlet pipe 16. Each is perforated.

Between the Richter 4 and the chiller 7 is provided with a wall tube 10 partitioning it, the wall tube 10 is a Richter facing hole 11 through which compressed air passing through the Richter 4 flows in. ) And a chiller counter hole 12 through which compressed air is sent out to the chiller 7 and a communication hole 13 connecting the chiller 7 and the richer 4 to the lower part.

In addition, an inlet hole 2 through which hot and humid compressed air flows is formed in the upper portion of the richer 4, and a plurality of heat transfer plates 1a having a plurality of pipe lines 14a communicating with the inlet hole 2 are formed. It is formed so as to communicate with the flow path between the layers, and the pipe 14b for connecting the pipe 14a and the compressed air flow to communicate with the lower portion of the Richter 4 to communicate with the Richter facing hole of the wall pipe ( 11d is connected to the lower communication hole 13 of the wall pipe 10 so as to be connected to the compressed air flow path circulated through the chiller 7 as one. Agglomeration chamber 18 in which agglomeration nets 9 are installed is formed in the amplification chamber 18, which has a shape in which internal flow paths communicating with the outlet holes 3 of the richer 4 are combined into one, and on one side of the agglomeration chamber 18. The drain hole 17 is observed.

In addition, a pipe line 14c connected to the chiller facing hole 12 of the wall tube 10 and communicating with an interlayer flow path of the chiller 7 is formed at an upper portion of the chiller 7, and a lower portion of the chiller 7 is provided. ) And an insulated expansion chamber (8) communicating with the internal passage and communicating with the communication hole (13) of the wall tube (10) and the conduit (14d) of the richer (4), and the refrigerant inlet (5) into which the refrigerant flows. And a coolant inlet pipe 15 communicating with the coolant inlet 5, and the coolant inlet pipe 15 communicates with an internal flow path and is connected to a coolant outlet pipe 16 communicating with the coolant outlet 6. Has a structure (see FIGS. 1 to 2).

3 is a flow diagram of the compressed air and the refrigerant according to the present invention, the refrigerant flow by the dotted line, the hot and humid air represented by the thick solid line passing through the Richter 4 is changed to the low temperature dry air while passing through the chiller (7) The flow back to the Richter 4 is shown.

In the integrated plate heat exchanger 100 configured as described above, the compressed air of high temperature and high humidity flows into the Richter 4 into the inlet 2, and the inside of the Richter 4 along the pipe 14a connected to the inlet 2. Flows into the plurality of flow paths formed in the Richter 4.

The flow path formed inside the Richter 4 is formed by stacking a plurality of corrugated heat transfer plates 1a, and is divided into two parts. One is a flow path through which hot and humid compressed air flowed into the inlet hole 2 and the other. Is a flow path through which the low-temperature dry compressed air passed through the chiller 7 is connected to the outlet hole 3. Therefore, the Richter 4 has a plurality of heat transfer plates (1a) are stacked to form two flow paths are separated from each other, the fluid flowing through each of them does not mix only heat exchange.

Therefore, the compressed air of the high temperature and high humidity introduced through the inlet 2 and the conduit 14a is collected in the conduit 14b after passing through the inner flow path, and the wall tube 10 is provided through the Richter facing hole 11 of the wall tube 10. After flowing into the inside of the) through the chiller facing hole 12, the first heat exchange is made in the process of flowing into the pipe (14c) of the chiller (7).

The hot and humid compressed air of the conduit 14c formed on the top of the chiller 7 passes through the flow path formed inside the chiller 7 to the lower adiabatic expansion chamber 8, and the other flow path inside the chiller 7. Secondary heat exchange takes place with the refrigerant passing through. The coolant enters the lower coolant inlet 5 and exits through the coolant outlet pipe path 16 and the coolant outlet 6 through the coolant inlet pipe 15 and the plurality of chillers 7 connected therein.

Of course, the compressed air and the refrigerant flowing inside the chiller 7 are divided into a plurality of stacked heat transfer plates 1b and alternately flow, thereby performing only a full-scale secondary heat exchange without mixing.

As described above, the compressed air of the high temperature and high humidity passes through the chiller 7 and is separated from the moisture to change into compressed air of low temperature drying. At this time, the separated water falls down and is drained through the drain hole 17 formed in the lower side of the agglomeration chamber 18.

And the present invention brings the separation effect of the water due to the adiabatic expansion together with the separation of the water by the secondary heat exchange, for this purpose, the adiabatic expansion chamber (8) is widely formed in the lower portion of the chiller (7) of the present invention have. That is, the heat insulation expansion chamber 8 according to the present invention is formed by the lower ends of the plurality of heat transfer plates 1b constituting the chiller 7 and combines the flow paths through which the compressed air formed in the chiller 7 flows.

Therefore, when compressed air flows from the narrow passage into the wide adiabatic expansion chamber 8, it is adiabatic expanded due to a decrease in pressure, and at this time, the temperature is lowered due to the consumption of internal energy, and the excess moisture contained in the air is condensed and separated. .

The air from which water is removed again by the adiabatic expansion is introduced into the lower conduit 14d of the Richter 4 through the lower communication hole 13 of the wall tube 10. An agglomeration chamber 18 is formed in the pipe line 14d of the Richter 4, and an agglomeration mesh 9 is provided therein. The agglomeration mesh 9 is made of a dense net or a mesh-shaped mesh and is dried at low temperature. It has a structure for finally condensing and extracting the moisture remaining in the air. That is, in the adiabatic expansion chamber 8, the air in which most of the moisture is removed is contacted with the agglomeration network 9, and the remaining moisture adheres to and condenses.

In this way, the water separated by the agglomeration network 9 of the adiabatic expansion chamber 8 and the agglomeration chamber 18 is discharged to the outside through the drain hole 17.

Air passing through the agglomerated net 9 flows upward along the inner flow path of the richer 4 and is discharged through the upper pipe line 14e and the outlet hole 3. At this time, the air flowing along the inner flow path of the Richter 4 is introduced through the inlet hole 2 and the conduit 14a, and the third heat exchange with the compressed air of high temperature and high humidity flowing along the other flow path inside.

Plate heat exchanger of the present invention having the above-described configuration and action is simply manufactured integrally by laminating and brazing the heat transfer plates (1a, 1b). If the manufacturing method is clear, the hole for forming the cohesion chamber 18 in a certain plate body A hole forming the heat pipes 14a, 14b, and 14e to form the heat transfer plate 1a, and a hole and a coolant to form the heat-expanding chamber 8 in a predetermined plate and a pipe 14c. Forming a heat plate 1b by forming a hole forming the inlet pipe 15 and the refrigerant outlet pipe 16; Constructing the richer 4 such that the aggregation chamber 18 and the conduits 14a, 14b, 14e are formed by stacking and brazing a plurality of heat transfer plates 1a; Forming a chiller 7 such that a plurality of heat transfer plates 1b are laminated and brazed to form an adiabatic expansion chamber 8, a pipe line 14c, a coolant inlet pipe 15, and a coolant outlet pipe line 16; The wall tube 10 is attached between the Richter 4 and the chiller 7, but the Richter facing hole 11 communicates with the conduit 14b of the Richter 4 and the chiller facing hole 12 is the chiller 7. Communicating with the conduit 14c of the pipe), and the communicating hole 13 is attached to communicate with the adiabatic expansion chamber 8 of the chiller 7 and the agglomeration chamber 18 of the richer 4; Inserting the agglomerate network 9 into the agglomeration chamber 18; It comprises a step of finishing the outermost of the Richter 4 and the chiller (7).

As described above, the manufacturing method of the present invention can easily form an agglomeration chamber 18 or an adiabatic expansion chamber 8 by simply stacking and brazing heat transfer plates 1a and 1b having holes for forming a pipe line. There are features of the method. That is, as described above, the adiabatic expansion chamber 8 and the agglomerated mesh 9 are formed inside the plate heat exchanger 100 to serve to separate moisture like a separator, and the heat transfer plates 1a and 1b are laminated. As a result, when the Richter 4 and the chiller 7 are formed, an agglomeration chamber 18 in which the adiabatic expansion chamber 8 and the agglomerate network 9 are naturally formed is formed. In this way, the heat exchanger 100 which can achieve the object of the present invention can be easily manufactured by stacking holes and pipes 14a, which will form the agglomeration chamber 18 in the heat transfer plate 1a constituting the richer 4. Holes for forming the 14b and 14e are formed, holes for forming the heat-insulating expansion chamber 8 in the heat transfer plate 1b constituting the chiller 7, holes for forming the pipe line 14c, and refrigerant inlet pipe 15 ) And a hole for forming the refrigerant outlet pipe path 16.

As described above, the present invention forms an adiabatic expansion chamber 8 at the lower part of the chiller 7 and installs a cohesive network 9 at the lower part of the heater 4 to remove moisture from the compressed air of high temperature and high humidity. As it can replace the separator installed in the pipe, it is possible to minimize the heat transfer loss by the flow path such as the pipe for connecting the separator to the Richter 4 and the chiller 7, and to maximize the discharge efficiency of the condensate, In addition to reducing the size and weight of air dryer products, it is possible to increase manufacturing efficiency and reduce costs by not using various accessories such as separators and piping.

Claims (9)

A rich heater 4 having a plurality of corrugated heat transfer plates 1a stacked thereon and having an inlet hole 2 and an outlet hole 3 having different compressed air flow paths therein; A chiller 7 in which a plurality of corrugated heat transfer plates 1b are stacked, a coolant inlet 5 and a coolant outlet 6 connected to the coolant flow path are formed, and a compressed air flow path is formed therein; In the plate heat exchanger (100) consisting of a wall tube (10) for providing a conduit so that the compressed air is communicated to the Richter (4) and the chiller (7) while partitioning the Richter (4) and the chiller (7); An adiabatic expansion chamber (8) is formed at the lower portion of the chiller (7) in the compressed air cooled in the chiller (7) going to the rich heater (4), and is connected to the adiabatic expansion chamber (8). An integrated plate heat exchanger having a condensate separating function, characterized in that an agglomeration chamber (18) is formed in the lower portion, and an agglomeration network (9) and a drain hole (17) are installed in the agglomeration chamber (18). 2. The integrated plate heat exchanger according to claim 1, wherein the heat transfer plate (1a) has a condensate separating function having a hole for forming an agglomeration chamber (18) and a hole for forming a conduit (14a, 14b, 14e). 2. The heat transfer plate 1b is formed with a hole for forming the thermally insulated expansion chamber 8, a hole for forming the conduit 14c, and a hole for forming the coolant inlet pipe 15 and the coolant outlet pipe 16. Integral plate heat exchanger with condensate separation. The wall tube (10) is a chiller counter hole (12) and chiller (7) through which compressed air is sent out to the Richter counter hole (11) and the chiller (7) into which compressed air of the Richter (4) flows. Integrated plate heat exchanger having a condensate separator function formed in the lower portion of the communication hole (13) connecting to the Richter (4). The integrated plate heat exchanger according to claim 1, wherein the adiabatic expansion chamber (8) has a condensate separating function formed by combining a plurality of compressed air flow paths formed inside the chiller (7). According to claim 1, Richter 4 is a pipe 14a in communication with the inlet hole (2) is formed through the heat transfer plate (1a) to communicate with the flow path between the layers, the lower portion of the Richter (4) A pipe 14b communicating with 14a is formed to be connected to the Richter facing hole 11 of the wall tube 10, and the aggregation chamber 18 formed under the Richter 4 has a lower communication with the wall tube 10. An integrated plate heat exchanger having a condensate separating function formed in a conduit (14d) formed in communication with the ball (13). The upper portion of the chiller (7) is formed with a conduit (14c) connected to the chiller facing hole (12) of the wall tube (10) and communicating with the interlayer flow path of the chiller (7), and the refrigerant inlet (5). The refrigerant inlet pipe 15 is formed in communication with the refrigerant inlet (16) and the refrigerant outlet pipe (16) is formed in communication with the refrigerant outlet (6) and the refrigerant inlet pipe (15) and the refrigerant outlet pipe (16) are in communication with each other, The adiabatic expansion chamber (8) is an integrated plate heat exchanger having a condensate-separating function formed in communication with the communication hole (13) of the pipe line (14c) and the wall tube (10). 2. The integrated plate heat exchanger according to claim 1, wherein the agglomeration chamber (18) has a condensate separating function formed by combining internal flow paths communicating with the outlet holes (3) of the richer (4). The agglomeration chamber 18 and the conduits 14a, 14b, and 14e are formed by stacking and brazing a plurality of heat transfer plates 1a having holes for forming the agglomeration chamber 18 and holes for forming the conduits 14a, 14b, and 14e. Configuring the Richter 4 to be formed; By stacking and brazing a plurality of heat transfer plates 1b having holes for forming the adiabatic expansion chamber 8, holes for forming the conduit 14c, holes for forming the refrigerant inlet conduit 15, and the refrigerant outlet conduit 16, The chiller 7 is configured to form the adiabatic expansion chamber 8, the pipe line 14c, the coolant inlet pipe 15, and the coolant outlet pipe line 16. Method for producing plate heat exchanger.

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