KR100454814B1 - Scroll-type heat exchange system applicable to stirling engine or refrigerator - Google Patents

Abstract

The present invention relates to a heat exchange system, and more particularly to a heat exchange system that can be utilized as a Stirling engine or a freezer by applying a scroll mechanism.

A scroll heat exchange system according to the present invention includes a scroll compressor having a fixed scroll and a swing scroll to compress and discharge a working fluid, a scroll expander having a fixed scroll and a swing scroll to expand and discharge the working fluid, And a regenerator provided therebetween, and a heat exchanger between the connecting fluid and the working fluid passing through the connecting part.

In such a scroll type heat exchange system, when the temperature of the scroll expander is higher than the temperature of the scroll compressor, it may function as a Stirling engine, and when the temperature of the scroll expander is lower than the temperature of the scroll compressor, it may function as a sterling refrigerator.

Description

SCROLL-TYPE HEAT EXCHANGE SYSTEM APPLICABLE TO STIRLING ENGINE OR REFRIGERATOR}

The present invention relates to a heat exchange system, and more particularly to a heat exchange system that can be utilized as a Stirling engine or a freezer by applying a scroll mechanism.

The Stirling engine is an external combustion engine which operates by heating and cooling a working gas sealed therein by installing a plurality of heat exchangers. Conventionally, a reciprocating piston type external combustion engine has been mainstream.

Since the Stirling engine is an external combustion engine, it can utilize various heat sources such as liquid fuel, gas fuel, solid fuel, industrial waste heat, solar heat and LNG cold heat, and in principle, the highest efficiency is achieved by the action of a regenerator installed between the heater and the cooler. Has In addition, since there is no valve and the pressure change is smooth, the noise and vibration are less than that of the internal combustion engine, and because of the continuous combustion, the combustion control is easy and the exhaust gas can be cleaned.

The basic configuration of a conventional reciprocating Stirling engine 100 is provided with an expansion piston 101 and a compression piston 103 to cooperate with each other while maintaining a phase difference of approximately 90 degrees, as shown in FIG. 105 and the compression space 107, and then connected therebetween by a regenerator 109 filled with a breathable heat storage material. At this time, since it is difficult to sufficiently heat and cool the working gas through the cylinder wall having a small heat transfer area, as shown in FIG. 7, a separate cooler 112 and a heater 114 are provided before and after the regenerator 109. Is installed.

In order to simplify the mechanical structure and reduce vibration of the conventional reciprocating Stirling engine, US Patent No. 6,109,040 uses two rotary Wankel rotors to give a phase difference as in a reciprocating Stirling engine. And inflation are alternating.

The characteristics of the conventional reciprocating (or Benkel rotary) sterling machine are that the compression and expansion process is discontinuous because the compression and expansion process is made by phase difference, and the working fluid reciprocates the regenerator between the compression chamber and the expansion chamber. Since a loss occurs, it is common for the torque to decrease with the increase of the rotational speed. In addition, since it is difficult to heat and cool the working gas through a cylinder wall having a small heat transfer area, a heater 114 and a cooler 112 are installed before and after the regenerator 109 as shown in FIG. For this purpose, a light-molecular gas such as hydrogen or helium, which has high heat transfer, should be used as the working gas. However, since the light molecular weight gas is easy to leak, high performance of the gas seal is very important.

8 is a conceptual diagram showing the operation of an ideal Stirling cycle step by step, FIG. 9 is a P-V diagram for an ideal Stirling cycle, and FIG. 10 is a P-V diagram for an actual Stirling cycle.

The ideal sterling cycle as shown in FIG. 8 is an isothermal compression (II-II) in the low temperature compression unit 123, the inlet heating (II-III), high temperature in principle as shown in FIG. It is composed of isothermal expansion (III-IV) and isothermal heat dissipation (IV-I) process while passing through isothermal expansion (III-IV) and regenerator 121 in the expansion portion 124, and has the highest efficiency such as carnocycle by the action of regenerator 121 do.

However, in the actual cycle, as shown in Fig. 10, the efficiency is much lower than the ideal case. As such, differences between the ideal sterling cycle and the actual sterling cycle and the difficulty of implementing the ideal sterling cycle are as follows.

First, in order to realize the ideal isothermal compression (I-II) and isothermal expansion (III-IV) processes of the ideal sterling cycle, fast heat transfer must occur through the inner wall of the cylinder. Due to the small area of the inner wall of the cylinder, fast heating and cooling of the internal working gas is difficult. In particular, as the engine speeds up and becomes larger, heat transfer becomes more difficult, and thus the inside of the cylinder becomes closer to the heat insulation process than to the isothermal process.

Therefore, in general, a separate heater 114 and a cooler 112 are installed before and after the regenerator 109 of the working gas for effective heating and cooling of the working gas, and thus most of the heat transfer is achieved.

However, while the heater 114 and the cooler 112 have a positive side to increase the specific power by enabling effective heating and cooling of the working gas, it has the following negative side.

In other words, the increase in the dead volume including the heater 114, the regenerator 109, the cooler 112, and the like rather than the compression / expansion space acts as a factor of reducing the output. In addition, after the working gas heated in the heater 114 expands in the cylinder and reheats through the heater 114 before storing heat in the regenerator 109, the working gas passing through the cooler 112 is compressed in the cylinder. Before recovering heat from the regenerator 109, a cycle defect occurs due to an unnecessary process of being recooled while passing through the cooler 112, thereby increasing flow resistance and decreasing thermal efficiency. In addition, the thermal stress of the component is increased, which is a significant constraint in the material selection and fabrication of the component.

Meanwhile, in the ideal sterling cycle as shown in FIG. 8, since the pistons 125 and 127 move discontinuously, only the compression process occurs in the low temperature part 123 and only the expansion process occurs in the high temperature part 124. However, in the actual reciprocating piston sterling engine as shown in FIG. 6, since the compression piston 103 and the expansion piston 101 move in conjunction with each other, the compression part by the low temperature piston 103 may also be slightly affected by the high temperature piston 101. Compression occurs and a slight expansion occurs by the low temperature piston 103 during the expansion process by the high temperature piston 101. This is also a major factor in the efficiency of the actual Stirling engine being significantly less than the efficiency of an ideal Carnot cycle.

Conventional Stirling engines are not easy to control the engine unlike internal combustion engines that react quickly according to the amount of fuel. Representative control methods include a change in the compression ratio by the pressure change, the dead body control, and the stroke control of the internal working gas. However, in the Stirling engine, the efficiency reduction and the fast load control method are both complicated and expensive.

The present invention has been made to solve the above problems, the object of which is to provide a high efficiency, low noise, low vibration, small size and light weight by being applied as a Stirling engine or a freezer capable of heat exchange by providing a scroll compressor and a scroll expander together It is to provide a scrollable heat exchange system that can be obtained.

1 is a block diagram showing a scroll heat exchange system according to a first embodiment of the present invention.

2 is a block diagram showing a heat exchange system further comprising a cooler and a heater in a scroll heat exchange system according to a first embodiment of the present invention.

3 is a cross-sectional view showing a scroll heat exchange system according to a second embodiment of the present invention.

4 is a block diagram showing a scroll heat exchange system according to a third embodiment of the present invention.

5 is a diagram illustrating a scroll mechanism provided with a bypass tube according to the present invention.

6 is a block diagram of a conventional reciprocating Stirling engine.

7 is a block diagram of a conventional reciprocating Stirling engine equipped with a heater and a cooler.

8 is a conceptual diagram illustrating the operation of an ideal stirling cycle step by step.

9 is a P-V diagram for an ideal sterling cycle.

10 is a P-V plot for the actual sterling cycle.

* Description of the symbols for the main parts of the drawings *

10: scroll type heat exchange system 12: scroll compressor

13, 33: housing 14, 34: fixed scroll

16, 36: swing scroll 18: cooling section

20: player 21: first connection portion

23: second connection portion 25: cooler

27: heater 32: scroll inflator

38: heating unit

In order to achieve the above object, a scroll type heat exchange system according to the present invention includes a sealed housing having a heat dissipating surface on the outside and at least one working fluid entrance to each of the center and the outer circumference, and fixed to the inside of the housing. A fixed swing spirally extending from the center to the outer periphery of the housing and spirally extending from the center to the outer periphery of the housing to continuously compress the working fluid introduced into the housing; A scroll compressor having a radius and rotating pivot scroll; A sealed housing having a heating surface on the outside and at least one working fluid entrance to each of the center and the outer circumference, a fixed scroll fixed to the inside of the housing and spiraling from the center to the outer circumference; A scroll expander including a swing scroll which is pivoted from a central portion in engagement with a fixed scroll and extends to an outer circumferential portion to swing the working fluid introduced into the housing continuously; A driving unit connected to each of the turning scrolls of the compressor and the expander to drive the rotating scroll; A first connection part connecting the fluid fluid inlets formed in the outer circumference of each of the scroll compressor and the scroll expander; A second connection portion connecting the working fluid inlets formed at the center of each of the scroll compressor and the scroll expander; A regenerator for allowing heat exchange between working fluids while penetrating the inside of the first and second connecting portions so as to be adjacent to each other; And is compressed by the scroll compressor and discharged through an outlet of the scroll compressor center, and then flows through the second connecting portion, passes through the regenerator, through the scroll expander center inlet, expands in the scroll expander, and expands around the scroll expander. And a working fluid circulated by being discharged through an outlet of the inlet and flowing through the regenerator and through the inlet of the scroll compressor outer periphery while moving through the first connection unit.

The scroll type heat exchange system includes a cooling unit which is formed around the outer side of the housing of the scroll compressor to release heat generated when the working fluid is compressed, and is formed around the outer side of the housing of the scroll expander when the working fluid is expanded. It may further include a heating unit capable of supplying heat.

A cooler may be further formed at a working fluid inlet of an outer circumference of the scroll compressor to cool the working fluid flowing into the scroll compressor via the regenerator, and at the inlet of the working fluid at the center of the scroll expander via the regenerator to the scroll expander. A heater may be further formed to heat the working fluid flowing therein.

A scroll heat exchange system according to the present invention includes a bypass pipe formed to communicate between an intermediate compression part separated by a predetermined distance from a center part of the housing and a connection part connected to a working fluid outlet of the center part. By further including a control valve installed in the pipe, it is possible to change the compression capacity by adjusting the bypass amount by the control valve.

On the other hand, in the scroll type heat exchange system according to the present invention, the scroll expander is supplied with heat at a higher temperature than the scroll compressor, and power is output from a drive unit connected to the scroll expander and the scroll compressor to function as an engine. Power may be input to a driving unit connected to the scroll expander and the scroll compressor, and the scroll expander may absorb heat at a lower temperature than the scroll compressor to function as a freezer.

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

Referring to FIG. 1, the scroll heat exchange system 10 according to the first embodiment of the present invention is largely composed of a scroll compressor 12, a scroll expander 32, and a regenerator 20. The inflator 32 is connected via the first connecting portion 21 and the second connecting portion 23.

The scroll compressor 12 includes a fixed scroll 14 and a revolving scroll 16 inside the housing 13 to compress the working fluid introduced from the outer circumferential portion to the central part. For this purpose, the housing 13 is sealed from the outside with one working fluid inlet at the outer circumference and one working fluid outlet at the center, and the fixed scroll 14 is fixed inside the housing 13 to form a spiral from the center. Extends to the outer periphery. The swinging scroll 16 is formed in a spiral form from the center and extends to the outer circumference thereof in engagement with the fixed scroll 14 inside the housing 13, and has a predetermined turning radius and pivots in a space between the fixed scroll 14 and the fixed scroll 14. The working fluid introduced into the housing 13 is continuously compressed.

A cooling unit 18 is formed at the outer circumference of the housing 13 of the scroll compressor 12 to dissipate heat generated when the working fluid is compressed to the outside. Have

The scroll inflator 32 has a fixed scroll 34 and a pivoting scroll 36 inside the housing 33 to expand the working fluid introduced from the center and to send it out to the outer circumference. To this end, the housing 33 is sealed from the outside with one working fluid inlet at the center and one working fluid outlet at the outer circumference, and is fixed to the inside of the housing 33 by a fixed scroll 34 and spirals from the center. Extends to the outer periphery. The swinging scroll 36 is formed in the housing 33 by engaging with the fixed scroll 34 helically from the center and extending outwardly, and having a predetermined turning radius and pivoting in the space between the fixed scroll 34 and the fixed scroll 34. The working fluid introduced into the housing 33 is continuously expanded.

A heating unit 38 is formed around the outer side of the housing of the scroll expander 32 to supply heat when the working fluid is expanded. For this purpose, the housing 33 has a heating surface on the outside.

The turning scrolls 16 and 36 of the compressor 12 and the expander 32 are separately connected to a driving unit (not shown) to drive the turning scrolls 16 and 36.

The scroll compressor 12 and the scroll expander 32 are connected by the first connecting portion 21 and the second connecting portion 23, and the first connecting portion 21 is an outer circumferential portion of each of the compressor 12 and the expander 32. The working fluid inlet formed in the connection to each other, the second connecting portion 23 connects the working fluid inlet formed in the center of each of the compressor 12 and the expander (32).

The first connection part 21 and the second connection part 23 formed as described above are heat exchanged in the regenerator 20, and thus the first connection part 21 and the second connection part 23 are formed inside the regenerator 20. Heat is exchanged between working fluids while penetrating adjacent.

The working fluid is compressed by the scroll compressor 12, discharged through the outlet of the center portion, and then flows through the second connecting portion 23 and passes through the regenerator 20 through the center inlet of the scroll expander 32. The introduced working fluid is expanded in the scroll expander 32 and discharged through the outlet of the outer circumference, and then flows through the regenerator 20 through the regenerator 20 while moving through the first connecting portion 21 and is circulated again through the inlet of the outer circumference of the scroll compressor 12. Done.

Referring to FIG. 2, a cooler 25 and a heater 27 may be further installed in the scroll heat exchange system 10 according to the first embodiment of the present invention.

That is, the cooler 25 may be formed at the working fluid inlet of the outer circumference of the scroll compressor 12 to cool the working fluid flowing into the scroll compressor 12 through the regenerator 20. In addition, a heater 27 may be formed at the inlet of the working fluid at the center of the scroll expander 32 to heat the working fluid flowing into the scroll expander 32 via the regenerator 20.

In the scroll heat exchange system 10 according to the present invention, when the temperature of the scroll expander 32 is higher than the temperature of the scroll compressor 12, the scroll expander 32 receives heat from the scroll expander 32 by the Stirling engine method. Heat is output from the heat exchange between the working fluid after expansion and the working fluid after compression is made to operate as an engine that outputs power through the drive unit.

On the contrary, when the temperature of the scroll expander 32 is lower than the temperature of the scroll compressor 12, the external power is input through the driving unit in the Stirling freezer method to receive heat from the scroll expander 32 having a low temperature, and the scroll compressor 12 is operated. It outputs heat and operates as a refrigerator in which heat is exchanged between the working fluid after expansion and the working fluid after compression.

3 is a cross-sectional view showing a scroll heat exchange system according to a second embodiment of the present invention.

Referring to FIG. 3, the scroll heat exchange system 40 according to the second embodiment of the present invention is similar in structure to the scroll heat exchange system 10 according to the first embodiment, but has a compressor 41 and an expander. A pair of fixed scrolls 43 and 53 and pivoting scrolls 45 and 55 are provided in each of the housings 42 and 52 of the 51 so that the tipping moment is not generated.

In addition, a plurality of cooling fins 49 are formed on the outer surface of the compressor housing 42, and a plurality of heating fins 59 are formed on the outer surface of the inflator housing 52 to make the cooling or heating more smoothly. .

The swing scrolls 45 and 55 of the scroll compressor 41 and the scroll expander 51 are driven in connection with two drive shafts 65, and the drive shaft 65a and the swing of the expander are connected to the swing scroll 45 of the compressor. The drive shaft 65b connected to the scroll 55 may be formed to have a phase difference of 180 ° from each other, thereby reducing unbalancing due to rotational movement.

The two drive shafts 65 are connected together by a belt or a chain to be driven together, and the drive shafts 65 transmit power to the outside through the power shaft 67 extended to the outside. Bearings 69 are respectively provided at portions where the drive shaft 65 is fastened and rotated.

In the heat exchange system according to the second embodiment of the present invention, the working fluid is further cooled while passing through the regenerator 60 and passing through the cooling chamber 47 of the compression section, and the working fluid is further connected to the first connecting portion 61. Compressed into the scroll compressor 41 through the compression is caused by the swinging movement of the swinging scroll (45). During the compression process, cooling continues by the cooling fins 49 formed in the housing 42 in the cooling chamber 47.

The compressed working fluid is heated through heat exchange with a high temperature working fluid passing through the first connecting portion 61 through the regenerator 60 through the second connecting portion 62, and then passes through the heating chamber 57 of the expansion portion. And further heats up and expands into the scroll expander 51 and pushes the pivoting scroll 55 out. During the expansion process, heating continues by the heating fins 59 formed in the housing 52 in the heating chamber 57.

The expanded working fluid is cooled through heat exchange with the low temperature working fluid passing through the regenerator 60 through the first connecting portion 61 and passing through the second connecting portion 62 and then supplied into the scroll compressor 41. Cycle.

At this time, the upper and lower cooling chambers 47 of the scroll compressor 41 are connected to each other, and the upper and lower heating chambers 57 of the scroll expander 51 are also connected to each other. In addition, the working fluids discharged from the upper and lower centers of the scroll compressor 41 are combined with each other and supplied to the regenerator 60, and the working fluids supplied from the regenerator 60 into the scroll expander 51 are also connected to each other.

4 is a block diagram showing a scroll heat exchange system according to a third embodiment of the present invention.

Referring to FIG. 4, in the heat exchange system according to the present embodiment, the first scroll expander 74 having a higher temperature is connected to one side of the center scroll compressor 72 and the other side of the heat exchange system 72. The low temperature second scroll expander 76 is connected. The heat exchange system thus constructed acts as a Stirling engine driven chiller.

That is, the combination of the high temperature first scroll expander 74 and the scroll compressor 72 operates as a Stirling engine, and the combination of the low temperature second scroll expander 76 and the scroll compressor 72 operates as a Stirling refrigerator.

This configuration is made possible by sharing the working fluid entrance and exit of the scroll compressor 72 with the first scroll expander 74 and the second expander 76 provided on both sides. Thus, the working fluid is compressed in the scroll compressor 72 and discharged through the outlet of the center portion, and then a portion thereof moves through the second connection portion 82 and passes through the first regenerator 85 to the center portion of the first scroll expander 74. It enters through the inlet, expands, is discharged through the outlet of the outer peripheral portion, and then moves through the first connecting portion 81 and passes through the first regenerator 85 through the outer peripheral inlet of the scroll compressor 72 to circulate. The remaining portion of the working fluid flows through the fourth connecting portion 84, passes through the second regenerator 86 through the central inlet of the second scroll expander 76, expands and is discharged through the outlet of the outer peripheral portion, and then the third connecting portion. As it moves through 83, it passes through the second regenerator 86 and flows through the inlet of the outer peripheral portion of the scroll compressor 72 to circulate.

In this way, the compression unit of the Stirling engine and the compression unit of the Stirling freezer can be configured very compactly to configure the refrigerator of the Stirling engine. The remaining power outside the freezer drive can be produced by electric power through a generator, so the system can be heated and cooled simultaneously. Can be configured.

5 is a diagram illustrating a scroll mechanism provided with a bypass tube according to the present invention.

Conventional control method of the reciprocating sterling machine includes internal operating gas pressure change, dead volume adjustment, compression ratio change due to stroke adjustment, etc., but the apparatus is complicated and expensive. In the control method of the Stirling cycle apparatus applying the scroll mechanism according to the present invention, as shown in FIG. 5, a bypass pipe 93 is installed in the intermediate compression section of the fixed scroll 91 of the scroll compressor to remove the compressed gas. By adjusting the bypass amount, the compression capacity can be easily adjusted. This makes engine control very fast and effective.

The intermediate compression unit is located at a portion away from the center of the scroll compressor by a predetermined distance, and the bypass pipe 93 is formed to communicate between the connection unit and the intermediate compression unit connected to the compressor center, and further includes a control valve 95 Allows adjustment of the bypass amount.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

As described above, according to the scroll type heat exchange system according to the present invention, since the mechanical structure is simple and the compression and expansion processes are continuously performed, there is almost no torque change and the flow direction of the working fluid is not changed, so the flow resistance is small. It is possible to configure the flow path and the regenerator.

In addition, the scroll wrap provides a very large heat transfer area in contact with the working fluid inside the compressor and inflator, enabling a highly efficient isothermal compression and expansion process close to the ideal sterling cycle and eliminating or minimizing the heater and cooler. It can be reduced to improve output, and manufacturing cost can be reduced by minimizing expensive component heaters.

In the scroll type heat exchange system according to the present invention, since the working fluid is moved in one-way, the working fluid heated in the heater is not reheated after expansion, and the working fluid heated in the cooler is not recooled after compression. Heat loss, flow resistance and thermal fatigue due to cycle failure can be minimized.

In addition, since the low temperature compression and the high temperature expansion are completely separated, high efficiency close to the ideal cycle can be obtained, and the compression ratio control by bypass in the compressor enables easy and effective engine control.

In addition, since the scroll heat exchange system according to the present invention is operated in a continuous steady state, there is almost no periodic temperature and pressure change in the component, thereby significantly reducing the constraints on the material selection and fabrication of the component. And, there is an effect that can achieve low noise, low vibration, small size, and light weight.

Claims (10)

A sealed housing having a heat dissipation surface on the outside and at least one working fluid entrance to each of the center and the outer circumference, a fixed scroll fixed to the inside of the housing and spiraling from the center to the outer circumference; A scroll compressor including a swinging scroll which has a predetermined turning radius to continuously compress the working fluid introduced into the housing helically from the center in a spiral form in engagement with the fixed scroll; A sealed housing having a heating surface on the outside and at least one working fluid entrance to each of the center and the outer circumference, a fixed scroll fixed to the inside of the housing and spiraling from the center to the outer circumference; A scroll expander including a swing scroll which pivots from a central portion and extends to an outer circumference thereof and engages with the fixed scroll and has a predetermined swing radius to continuously expand the working fluid introduced into the housing; A driving unit connected to each of the turning scrolls of the compressor and the expander to drive the same; A first connection part connecting the fluid fluid inlets formed in the outer circumference of each of the scroll compressor and the scroll expander; A second connection portion connecting the working fluid inlets formed in the centers of the scroll compressor and the scroll expander to each other; A regenerator for allowing heat exchange between working fluids while penetrating the inside of the first and second connecting portions so as to be adjacent to each other; And Compressed by the scroll compressor and discharged through the outlet of the scroll compressor center, and then flows through the second connection portion and flows through the regenerator through the scroll expander center inlet, is expanded in the scroll expander to the outer peripheral portion of the scroll expander A working fluid circulated by being discharged through an outlet and then flowing through the regenerator and through the inlet of the outer portion of the scroll compressor while moving through the first connection part. Scroll type heat exchange system comprising a. The method of claim 1, A cooling unit which is formed around a housing outer side of the scroll compressor to release heat generated when the working fluid is compressed, and a heating unit which is formed around the housing outer side of the scroll expander to supply heat when the working fluid is expanded A scroll heat exchange system further comprising a portion. The method of claim 1, The cooler is formed at the working fluid inlet of the outer peripheral portion of the scroll compressor to cool the working fluid flowing into the scroll compressor through the regenerator, and the scroll to heat the working fluid flowing into the scroll expander through the regenerator. And a heater formed at the inlet of the working fluid at the center of the expander. The method of claim 1, And the orbiting scrolls of the scroll compressor and the scroll expander are each connected to two drive shafts and driven. The method of claim 4, wherein And a drive shaft connected to the swing scroll of the scroll compressor and a drive shaft connected to the swing scroll of the scroll expander have a phase difference of 180 ° with each other. The method of claim 1, And a plurality of heat transfer fins formed on the housing of the scroll compressor and the outer surface of the housing of the scroll expander to facilitate heat absorption or heat dissipation. The method of claim 1, And a bypass pipe formed to communicate between the intermediate compression part separated by a predetermined distance from the center of the housing and a connection part connected to the working fluid entrance and exit of the center, and a control valve installed on the bypass pipe. And a compression capacity can be changed by adjusting the bypass amount by the control valve. The method of claim 1, The scroll expander is supplied with heat at a higher temperature than the scroll compressor, and power is output from a drive unit connected to the scroll expander and the scroll compressor to function as an engine. The method of claim 1, And power is supplied to a drive unit connected to the scroll expander and the scroll compressor, and the scroll expander absorbs heat at a lower temperature than the scroll compressor, thereby functioning as a freezer. A sealed housing having a heating surface on the outside and at least one working fluid entrance to each of the center and the outer circumference, a fixed scroll fixed to the inside of the housing and spiraling from the center to the outer circumference; A first scroll expander comprising a pivoting scroll which has a predetermined pivot radius to continuously expand the working fluid introduced into the housing helically from the central portion in a spiral form from a central portion in engagement with the fixed scroll; A sealed housing having a heat dissipation surface on the outside and at least one working fluid entrance to each of the center and the outer circumference, a fixed scroll fixed to the inside of the housing and spiraling from the center to the outer circumference; A scroll compressor including a swinging scroll which has a predetermined turning radius to continuously compress the working fluid introduced into the housing helically from the center in a spiral form in engagement with the fixed scroll; A sealed housing having a heating surface on the outside and at least one working fluid entrance to each of the center and the outer circumference, a fixed scroll fixed to the inside of the housing and spiraling from the center to the outer circumference; A second scroll expander including a swing scroll having a predetermined swing radius to continuously expand the working fluid introduced into the housing in a spiral form from a central portion in a spiral form with a fixed scroll; A driving unit connected to each of the turning scrolls of the compressor and the expander to drive the same; A first connection part connecting the hydraulic fluid inlet and the outer circumference of each of the scroll compressor and the first scroll expander; A second connection part connecting the working fluid entrance and exit formed in the center of each of the scroll compressor and the first scroll expander; A first regenerator for allowing heat exchange between working fluids while passing through the first and second connecting portions so as to be adjacent to each other; A third connection part connecting the fluid fluid inlets formed in the outer circumference of each of the scroll compressor and the second scroll expander; A fourth connection part connecting the fluid fluid inlets formed in the centers of the scroll compressor and the second scroll expander to each other; A second regenerator for allowing heat exchange between working fluids while passing through the third connection portion and the fourth connection portion so as to be adjacent to each other; And Compressed in the scroll compressor and discharged through the outlet of the scroll compressor center, and then a portion is passed through the first regenerator, through the first scroll inflator center inlet and expanded while moving through the second connection portion, the outlet of the outer peripheral portion Is discharged through the first regenerator while passing through the first regenerator and through the scroll compressor outer periphery inlet, and the other part is moved through the fourth receptacle while passing through the second regenerator and the second scroll. Working fluid circulated by flowing through the inlet of the expander, inflated and discharged through the outlet of the outer peripheral portion, and then flowing through the scroll compressor outer peripheral portion through the second regenerator while moving through the third connecting portion. Scroll type heat exchange system comprising a.