KR20220109244A - Multiple waste heat recycling system - Google Patents

Abstract

The present invention relates to a multiple waste heat recycling system. The multiple waste heat recycling system according to an embodiment of the present invention comprises: a white smoke reducing device; an ORC power generation device; a Stirling engine; and an absorption chiller. The white smoke reducing device further includes a first heat exchanger for providing the waste heat water of the white smoke reducing device, which is either or both of hot water and condensed water, to either or both of the ORC power generation device and the Stirling engine, and the absorption chiller in parallel, and cooling the waste heat water used as a heat source in the ORC power generation device, the Stirling engine and the absorption chiller to supply the same as cold water to the white smoke reducing device. The first heat exchanger receives second strong cold water from the absorption chiller and cools the waste heat water. Therefore, provided is a multiple waste heat recycling system, wherein at least one waste heat water among hot water and condensed water discharged from a white smoke reducing device can be recycled.

Description

Multiple waste heat recycling system

The present invention relates to a multi-type waste heat recycling system, and more particularly, to a multi-type waste heat recycling system for recycling waste heat from a plume abatement device as a heat source for an ORC power generation device, a Stirling engine, and an absorption chiller.

In general, incinerators, metal melting furnaces, boilers, wet desulfurization facilities, etc., which are air pollutant discharge facilities, discharge high-temperature exhaust gas containing high-concentration pollutants into the atmosphere during operation.

Therefore, in order to remove pollutants contained in the exhaust gas, an absorption tower, which is a wet dust collection facility that removes harmful substances by spraying an aqueous solution, is installed and used.

Recently, when the exhaust gas is discharged into the atmosphere, a white smoke reduction device that uses a moisture absorbent to recover moisture and heat from the exhaust gas to minimize the generation of white smoke has been studied. At this time, since the plume abatement device recovers even the latent heat of water vapor contained in the exhaust gas, it can have high energy recyclability.

That is, the plume abatement device recovers the amount of heat from the absorbent liquid recovered up to the latent heat of the exhaust gas, discharges it as hot water, and discharges the high-temperature condensed water in which steam is condensed in the process of regenerating the absorbent liquid.

However, most of the hot water or condensed water discharged from the plume abatement device is discarded as it is, resulting in wastage of energy.

Korean Patent 10-2013-0118603

An object of the present invention is to provide a multi-type waste heat recycling system capable of recycling at least one of hot water and condensed water discharged from a plume abatement device.

The multi-type waste heat recycling system according to an example of the present invention absorbs moisture and heat of exhaust gas using a moisture absorbent, absorbs heat from the absorbent using cold water, then discharges hot water, and uses steam to absorb the moisture a plume reduction device for discharging condensed water after regenerating the liquid; an ORC power generation device that heats a first working fluid using a heat source and generates electricity according to an organic Rankine cycle (ORC) of the first working fluid; and an absorption refrigerator that cools the first strong cold water supplied from the outside using the latent heat of evaporation of the refrigerant and re-supply the second cold water to the outside, and regenerates the refrigerant using a heat source, wherein the white smoke reduction device comprises: The waste heat water of the plume abatement device, which is at least one of the hot water and the condensed water, is provided in parallel to the ORC power generation device and the absorption chiller, and the waste heat water used as a heat source in the ORC power generation device and the absorption chiller is cooled to said Further comprising; a first heat exchanger for supplying the cold water to the white smoke reduction device, wherein the first heat exchanger receives the second strong cold water from the absorption refrigerator to cool the waste heat water.

A multi-type waste heat recycling system according to another example of the present invention absorbs moisture and heat of exhaust gas using a moisture absorbent, absorbs heat from the absorbent liquid using cold water, then discharges hot water, and uses steam to White smoke reduction device for discharging condensed water after regenerating the moisture absorbent; a Stirling engine that uses a heat source to expand and compress a second working fluid in an enclosed space to generate electricity; and an absorption refrigerator that cools the first strong cold water supplied from the outside using the latent heat of evaporation of the refrigerant and re-supply the second cold water to the outside, and regenerates the refrigerant using a heat source, wherein the white smoke reduction device comprises: Waste heat water of the white smoke reduction device, which is at least one of the hot water and the condensed water, is provided in parallel to the Stirling engine and the absorption refrigerator, and the waste heat water used as a heat source in the Stirling engine and the absorption refrigerator is cooled to reduce the white smoke Further comprising a first heat exchanger for supplying the cold water to the apparatus, wherein the first heat exchanger receives the second strong cold water from the absorption refrigerator to cool the waste heat water.

A multi-type waste heat recycling system according to another example of the present invention absorbs moisture and heat of exhaust gas using a moisture absorbent, absorbs heat from the moisture absorbent using cold water, then discharges hot water, and uses steam a white smoke reduction device for discharging condensed water after regenerating the moisture absorbent; an ORC power generation device that heats a first working fluid using a heat source and generates electricity according to an organic Rankine cycle (ORC) of the first working fluid; a Stirling engine that uses a heat source to expand and compress a second working fluid in an enclosed space to generate electricity; and an absorption refrigerator that cools the first strong cold water supplied from the outside using the latent heat of evaporation of the refrigerant and re-supply the second cold water to the outside, and regenerates the refrigerant using a heat source, wherein the white smoke reduction device comprises: The waste heat water of the plume abatement device, which is at least one of the hot water and the condensate, is provided in series or parallel to the ORC power generation device and the Stirling engine, and the absorption chiller is provided in parallel with the ORC power generation device and the Stirling engine, the ORC power generation device, Stirling engine, and a first heat exchanger for cooling the waste heat water used as a heat source in the absorption chiller and supplying the cold water to the plume abatement device, wherein the first heat exchanger is The second cold water is supplied to cool the waste hot water.

Here, it may further include a first supply pipe connected to at least one of the hot water pipe for discharging the hot water and the condensed water pipe for discharging the condensed water.

The white smoke reduction device provides the waste heat water of the white smoke reduction device, which is at least one of the hot water and the condensed water, to the ORC power generation device and the Stirling engine in series, and the waste heat water of the white smoke reduction device is supplied through the first supply pipe. supplying to a first power generation device which is one of the ORC power generation device and the Stirling engine, wherein the first power generation device supplies the waste heat water of the first power generation device to the other power generation device of the ORC power generation device and the Stirling engine It can supply to a 2nd power generation device.

Further comprising a recovery pipe having one end connected to a cold water pipe for supplying the cold water to the plume reduction device and the other end connected to the second power generation device and the absorption refrigerator, wherein the first heat exchanger is provided on the recovery pipe can

In addition, the second power generation device may discharge the waste heat water of the second power generation device to the recovery pipe.

In addition, it further comprises a second supply pipe connected to at least one of the hot water pipe and the condensed water pipe separately from the first supply pipe, wherein the white smoke reduction device is a waste heat water of the white smoke reduction device through the second supply pipe. may be supplied to the absorption chiller.

Here, the absorption chiller may use the waste heat water of the white smoke reduction device supplied through the second supply pipe as a heat source for regenerating the refrigerant, and discharge the waste heat water of the absorption chiller to the recovery pipe.

Here, the first heat exchanger may cool the waste heat water of the second power generation device introduced through the recovery pipe and the waste heat water of the absorption refrigerator together.

In addition, a second heat exchanger located between the rear end of the second power generating device and the recovery pipe, receiving the second strong cold water supplied from the absorption refrigerator, cooling the waste heat water of the second power generating device, and supplying the second heat exchanger to the first heat exchanger. may include more.

Here, the white smoke reduction device absorbs moisture and heat from the exhaust gas by using the moisture absorption liquid and then discharges the exhaust gas to the atmosphere. A storage unit for storing, located between the storage unit and the moisture absorption unit, after recovering the amount of heat from the moisture absorption liquid using the cold water, the moisture absorption liquid from which the amount of heat has been lost is supplied to the moisture absorption unit, and the hot water is discharged a first heat exchanger that receives the absorbent liquid from the storage unit and regenerates the absorbent liquid using the steam, then supplies the regenerated absorbent liquid to the storage unit, and discharges the condensed water. may include wealth.

The first power generation device is the ORC power generation device, and the ORC power generation device includes an evaporator, a turbine, a generator, a condenser and a pump operating according to an organic Rankine cycle (ORC), wherein the evaporator is the waste heat water of the plume abatement device. is used as a heat source to change the state of the first working fluid into a high-temperature and high-pressure gas, discharge the waste heat water used as the heat source, and the turbine expands the first working fluid in a high-temperature and high-pressure gas state. rotating a rotating shaft, the generator is connected to the rotating shaft to generate electricity according to the rotation of the rotating shaft, and the condenser uses a first cooling water to cool the first working fluid, and the first working fluid in a gaseous state can be condensed into a liquid state.

In addition, it may further include a first main cooling unit for receiving the first cooling water from the condenser, cooling it and then re-supplying the first cooling water to the condenser.

A first pre-cooling unit disposed between the condenser and the first main cooling unit, receiving the second strong cold water from the absorption chiller, pre-cooling the first cooling water, and supplying the first main cooling unit to the first main cooling unit. can

The second power generation device is the Stirling engine, and the Stirling engine forms the jointly sealed space, and the high temperature part and the low temperature part located in opposite directions and each piston provided in the high temperature part and the low temperature part are reciprocated by reciprocating motion. a power generation unit generating electricity, wherein the high temperature unit expands the second working fluid inside the first cylinder forming the sealed space using the waste heat water of the first power generation device as a heat source to move the first piston to the outside and discharging the waste heat water used as a heat source, and the low-temperature part compresses the second working fluid inside the second cylinder forming the sealed space with the second cooling water to draw the second piston inward. have.

It may further include a second main cooling unit for receiving the second cooling water from the low-temperature unit, cooling it and then re-supplying the second cooling water to the low-temperature unit.

It is disposed between the low-temperature part and the second main cooling unit, receiving the second strong cold water from the absorption refrigerator to pre-cool the second cooling water and further include a second pre-cooling unit for supplying the second main cooling unit to the second main cooling unit can

The absorption refrigerator further includes a regenerator, a condenser, an evaporator and an absorber, wherein the regenerator uses the waste heat water of the plume abatement device to heat the diluted aqueous solution, and separates the refrigerant from the diluted aqueous solution in the form of water vapor, The condenser receives the refrigerant evaporated in the form of water vapor from the regenerator and condenses the refrigerant using a third cooling water, and the evaporator receives the refrigerant from the condenser and uses the latent heat of evaporation of the refrigerant to obtain the first Cooling the strong cold water with the second cold water, the absorber receives the concentrated aqueous solution from which the refrigerant is separated from the regenerator, and absorbs the refrigerant having a vapor form vaporized by the latent heat of evaporation using the concentrated aqueous solution Thus, the diluted aqueous solution may be supplied to the regenerator.

The white smoke reduction device provides the waste heat water of the white smoke reduction device, which is at least one of the hot water and the condensed water, to the ORC power generation device and the Stirling engine in parallel, and a hot water pipe for discharging the hot water and condensed water for discharging the condensed water It further comprises a plurality of supply pipes respectively connected to at least one of the pipes, wherein the plume abatement device is the waste heat water of the plume abatement device to the ORC power generation device, the Stirling engine and the absorption refrigerator through each of the plurality of supply pipes. can supply

The present invention provides at least one waste heat water of hot water and condensed water discharged from the plume abatement device as a heat source to an ORC power generation device, a Stirling engine, and an absorption chiller, so that the utilization of waste heat water such as hot water or condensed water can be further increased.

1 is a diagram for explaining the overall configuration of a multi-type waste heat recycling system according to a first embodiment of the present invention.
2 is a view for explaining an example of the white smoke reduction device shown in FIG.
3 is a view for explaining an example of the ORC power generation device shown in FIG.
FIG. 4 is a view for explaining an example of the Stirling engine shown in FIG. 1 .
5 is a view for explaining an example of the absorption refrigerator shown in FIG.
6 is a view for explaining a multi-type waste heat recycling system according to a modified example of the first embodiment of the present invention.
7 is a view for explaining a multi-type waste heat recycling system according to a second embodiment of the present invention.
8 is a view for explaining a multi-type waste heat recycling system according to a modified example of the second embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that adding a detailed description of a technique or configuration already known in the relevant field may obscure the gist of the present invention, it will be partially omitted from the detailed description. In addition, the terms used in this specification are terms used to properly express the embodiments of the present invention, which may vary according to a person or custom in the relevant field. Accordingly, definitions of these terms should be made based on the content throughout this specification.

The terminology used herein is for the purpose of referring to specific embodiments only, and is not intended to limit the invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. As used herein, the meaning of 'comprising' specifies a particular characteristic, region, integer, step, operation, element and/or component, and other specific characteristic, region, integer, step, operation, element, component, and/or group. It does not exclude the existence or addition of

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

1 is a diagram for explaining the configuration of a multi-type waste heat recycling system according to a first embodiment of the present invention.

As shown in FIG. 1, the multi-type waste heat recycling system according to the first embodiment of the present invention is a white smoke reduction device 100 (LHBS: Latent Heat Backstreaming System), an ORC (Organic Rankine Cycle) power generation device 200, a Stirling engine. 300 , an absorption chiller 400 and a first heat exchanger 510 .

In addition, in the multi-type waste heat recycling system according to the first embodiment of the present invention, the first main cooling unit 290 and the first preliminary cooling unit 280 for cooling the cooling water of the ORC power generation device 200, the cooling water of the Stirling engine It may further include a second main cooling unit 390 and a second preliminary cooling unit 380 and a third main cooling unit 490 for cooling.

The multi-type waste heat recycling system according to the present invention can be driven by providing the waste heat water discharged during operation from the white smoke abatement device 100 as a heat source to the ORC power generation device 200 and the Stirling engine 300, and the absorption chiller 400 ) as a heat source to drive the absorption chiller 400 .

The plume abatement device 100 receives exhaust gas generated in the process of burning fuel such as fossils in the boiler 1 through the exhaust gas supply pipe P1, and uses a moisture absorbent solution from the exhaust gas to moisture and heat (up to latent heat). included), it can perform a function of discharging the exhaust gas to the atmosphere through the chimney through the exhaust gas discharge pipe (P2, P3).

Accordingly, the white smoke reduction device 100 absorbs moisture and heat from the exhaust gas before the exhaust gas is discharged into the atmosphere and discharges the exhaust gas, so it is possible to minimize the occurrence of white smoke due to the moisture contained in the exhaust gas. have. In addition, it recovers even the latent heat of exhaust gas, greatly improving energy recyclability.

This white smoke reduction device 100 absorbs heat from the moisture absorption liquid using the cold water supplied through the cold water pipe P12, and discharges the hot water generated while absorbing the heat through the hot water pipe P14, and the steam pipe The moisture absorbent may be regenerated by using the steam supplied through (P15), and condensed water condensed while the steam discharges heat may be discharged through the condensed water pipe (P16).

Here, the temperature of the steam supplied to the white smoke reduction device 100 may be in any one of a temperature range between 140°C and 150°C, for example, the steam may be 150°C.

The temperature of the cold water supplied to the white smoke reduction device 100 may be any one of a temperature range between 35 °C and 45 °C, for example, the cold water may be 40 °C. In this way, when the cold water is supplied at 40 ℃, the efficiency of the white smoke reduction device 100 can be maximized.

The temperature of the condensed water discharged from the plume abatement device 100 may be any one of a temperature range between 90 °C and 150 °C, and the temperature of the hot water may be any one of a temperature range between 80 °C and 90 °C. For example, the temperature of the hot water may be about 85 ℃.

In this way, the white smoke reduction device 100 may discharge at least one of hot water and condensed water as waste heat water (ie, waste heat water of the white smoke reduction device 100).

Here, the first supply pipe SP1 may be connected to at least one of the hot water pipe P14 and the condensate pipe P16, and the waste heat water of the plume abatement device 100 may be discharged through the first supply pipe SP1. have.

The ORC power generation device 200 may use a heat source to heat the first working fluid for operating the ORC power generation device 200 and generate electricity according to the organic Rankine cycle (ORC). A detailed description of the ORC power generation device 200 will be described later with reference to FIG. 3 .

The Stirling engine 300 may generate electricity by expanding and compressing the second working fluid in the enclosed space using a heat source. A detailed description of the Stirling engine 300 will be described later with reference to FIG. 4 .

The absorption chiller 400 cools the first strong cold water supplied from the outside using the latent heat of evaporation of the refrigerant and re-supply it to the outside, but separates the refrigerant from the diluted aqueous solution in the form of water vapor using a heat source, Refrigerant can be regenerated. A detailed description of the absorption chiller 400 will be described with reference to FIG. 5 .

On the other hand, in the system of the present invention, the plume abatement device 100 converts waste heat water of the plume abatement device 100 generated in the process of treating the exhaust gas to the ORC power generation device 200, the Stirling engine 300 and the absorption chiller 400 ) can be provided as a heat source.

For example, the white smoke abatement device 100 may provide the waste heat water of the white smoke abatement device 100 to the ORC power generation device 200 and the Stirling engine 300 in series. The white smoke abatement device 100 primarily supplies the waste heat water of the white smoke abatement device 100 to the first power generation device which is any one of the ORC power generation device 200 and the Stirling engine 300, and the ORC power generation device 200 and Secondary power may be supplied to the second power generation device, which is the other one of the Stirling engines 300 .

1 shows that the waste heat water of the white smoke abatement device 100 is provided in series to both the ORC power generation device 200 and the Stirling engine 300, but the technical spirit of the present invention is not limited thereto, and the white smoke abatement device The waste heat water of 100 may be configured to be supplied only to any one of the ORC power generation device 200 and the Stirling engine 300 . That is, the configuration of the white smoke abatement device 100, the ORC power generation device 200 and the absorption chiller 400 or the configuration of the white smoke abatement device 100, the Stirling engine 300 and the absorption chiller 400 is also of the present invention. It will be included in the technical thought.

More specifically, the white smoke reduction device 100 is a first power generation device that is any one of the ORC power generation device 200 and the Stirling engine 300 through the first supply pipe SP1 of the waste heat water of the white smoke reduction device 100 . and the waste heat water discharged from the first power generation device may be supplied to the second power generation device through the first connection pipe CP1 connected to the rear end of the first power generation device.

In FIG. 1 , the white smoke reduction device 100 primarily supplies the waste heat water of the white smoke reduction device 100 to the ORC power generation device 200 , and the waste heat water of the ORC power generation device 200 through the first connection pipe CP1 . A case of secondary supply to the Stirling engine 300 is illustrated as an example. Here, the Stirling engine 300 is located at the rear end of the ORC power generation device 200 because the Stirling engine 300 can be driven even at a relatively low temperature compared to the ORC power generation device 200 .

However, the present invention is not limited thereto, and differently from FIG. 1 , the waste heat water of the white smoke abatement device 100 is primarily supplied to the Stirling engine 300 , and then is secondarily supplied to the ORC power generation device 200 . It is possible. Hereinafter, the example shown in FIG. 1 will be described as an example.

In addition, as shown in FIG. 1 , a second supply pipe SP2 may be further connected to at least one of the hot water pipe P14 and the condensate pipe P16 separately from the first supply pipe SP1 .

The white smoke reduction device 100 may supply the waste heat water of the white smoke reduction device 100 to the absorption chiller 400 in parallel through the second supply pipe SP2 . Accordingly, the white smoke reduction device 100 may supply the waste heat water of the white smoke reduction device 100 to the absorption chiller 400 through the second supply pipe SP2, which is a path different from the first supply pipe SP1.

In this way, when the white smoke reduction device 100 supplies the waste heat water of the white smoke reduction device 100 to the absorption chiller 400 in parallel to regenerate the refrigerant in the absorption chiller 400, the temperature of the most efficient heat source is the white smoke reduction device. This is because it is closest to the temperature of the waste hot water of the device 100 .

In addition, the present invention recovers the waste heat water of the ORC power generation device 200, the Stirling engine 300, and the absorption chiller 400, as shown in FIG. ) may be further provided.

The recovery pipe RP and the second power generation device may be connected through a second connection pipe CP2.

The recovery pipe RP may have one end connected to the cold water pipe P12 for supplying cold water to the plume abatement device 100 , and the other end connected to the second power generation device and the absorption chiller 400 . Here, a separate pipe may be further provided between the second power generation device and the recovery pipe RP.

Accordingly, the second power generation device discharges the waste heat water of the second power generation device to the recovery pipe (RP), and the absorption chiller 400 is the waste heat of the plume abatement device 100 supplied through the second supply pipe (SP2). Water may be used as a heat source, and waste heat water of the absorption refrigerator 400 used as a heat source may be discharged to the recovery pipe (RP).

A first heat exchanger 510 may be provided on the recovery pipe RP as described above.

The first heat exchanger 510 may cool the waste heat water used as a heat source in the ORC power generation device 200 , the Stirling engine 300 , and the absorption chiller 400 , and supply the cold water to the plume abatement device 100 .

Here, the first heat exchanger 510 receives the second cold water from the absorption chiller 400 , and cools the waste heat water discharged from the ORC power generation device 200 , the Stirling engine 300 and the absorption chiller 400 together. can do it

Specifically, the first heat exchanger 510 cools the waste heat water of the second power generation device introduced through the recovery pipe (RP) and the waste heat water of the absorption chiller 400 together, and then converts the cooled waste heat water into the plume abatement device. (100) can be supplied with cold water.

Such a first heat exchanger 510 cools the waste heat water of the ORC power generation device 200 , the Stirling engine 300 and the absorption chiller 400 , and supplies the cold water of the white smoke abatement device 100 to the waste heat water. Accordingly, it is possible to prevent the efficiency of the white smoke reduction device 100 from being lowered.

That is, the waste heat water discharged from the ORC power generation device 200, the Stirling engine 300 and the absorption chiller 400 without the first heat exchanger 510 is supplied as cold water to the plume abatement device 100 as it is. In this case, the temperature of the waste hot water is excessively high, and the efficiency of the white smoke reduction device 100 may be greatly reduced.

However, in the present invention, since waste heat water is cooled through the first heat exchanger 510 and supplied as cold water of the white smoke reduction device 100, the efficiency of the white smoke reduction device 100 is not reduced, and the white smoke reduction device 100. of waste heat water and the waste heat water of the ORC power generation device 200 , the Stirling engine 300 , and the absorption chiller 400 can be recycled. Accordingly, energy efficiency can be greatly increased.

In addition, the ORC power generation device 200, the Stirling engine 300 and the absorption chiller 400 according to the first embodiment of the present invention may use first, second, and third coolants for driving, respectively, the first, 2 and 3 cooling water may be cooled by the first, second, and third main cooling units 290 , 390 , and 490 , respectively.

Specifically, the ORC power generation device 200 may be connected to the first main cooling unit 290 provided in the form of a cooling tower. The first main cooling unit 290 may receive the first cooling water absorbing heat from the ORC power generation device 200 , cool it, and then re-supply it to the ORC power generation device 200 .

The first pre-cooling unit 280 is provided in the form of a heat exchanger between the ORC power generation device 200 and the first main cooling unit 290 , and receives the second strong cold water from the absorption chiller 400 , the second strong cold water may be used to pre-cool the first cooling water and then supply it to the first main cooling unit 290 .

The Stirling engine 300 may be connected to the second main cooling unit 390 provided in the form of a cooling tower. The second main cooling unit 390 may receive the second cooling water that has absorbed heat from the Stirling engine 300 , cool it, and then re-supply it to the Stirling engine 300 .

The second pre-cooling unit 380 is provided in the form of a heat exchanger between the Stirling engine 300 and the second main cooling unit 390 , and receives the second strong cold water from the absorption chiller 400 to receive the second strong cold water. The second cooling water may be pre-cooled by using it and then supplied to the second main cooling unit 390 .

The absorption chiller 400 may be connected to the third main cooling unit 490 provided in the form of a cooling tower. The third main cooling unit 490 may receive and cool the third cooling water that has absorbed heat from the absorption refrigerator 400 , and then re-supply it to the absorption refrigerator 400 .

Hereinafter, the white smoke reduction device 100 , the ORC power generation device 200 , the Stirling engine 300 and the absorption refrigerator 400 shown in FIG. 1 will be described.

FIG. 2 is a view for explaining an example of the white smoke reduction device 100 shown in FIG. 1 .

The white smoke reduction device 100 according to an example of the present invention has a moisture absorption unit 110, a storage unit 120, a first white smoke heat exchanger 131 and a moisture absorption liquid regeneration unit ( 132), and may optionally further include a second white smoke heat exchanger 133 and a gas-liquid separator 134. Hereinafter, a case in which the second white smoke heat exchanger 133 and the gas-liquid separator 134 are further provided will be described as an example, but the present invention is not necessarily limited thereto.

The moisture absorption unit 110 is provided in the form of a vertically long tower, and after absorbing moisture and heat from the exhaust gas using a moisture absorption liquid, the exhaust gas may be discharged into the atmosphere.

For example, the exhaust gas is supplied through the exhaust gas supply pipe P1 connected to the lower part of the moisture absorption unit 110 , moisture and heat are recovered by the moisture absorption liquid, and then the exhaust gas connected to the upper part of the moisture absorption unit 110 . It may be discharged to the chimney through the discharge pipe (P2, P3).

The moisture absorption liquid is supplied through the moisture absorption liquid supply pipes (P4, P5) connected to the upper part of the moisture absorption part 110, and may be supplied in the form of being sprayed from the upper part of the moisture absorption part 110, and exhaust gas from the moisture absorption part 110 By absorbing the amount of heat including moisture and latent heat of the absorbent liquid may be discharged to the storage unit 120 through the discharge pipe (P6).

Such a hygroscopic liquid may be a material that absorbs moisture and latent heat from the exhaust gas by causing a chemical heat recovery reaction when it is in contact with the exhaust gas as a solution containing salts with strong hygroscopicity.

In one example, the moisture absorbent is selected from the group consisting of calcium nitrate, ammonium nitrate, ammonium sulfate, barium nitrate, barium perchlorate, potassium formate, sodium chlorate, sodium nitrate, potassium nitrate, sodium chloride, and calcium chloride. The material selected above may be included, and the concentration of the absorbent liquid may be 40 to 80 wt%.

Such a hygroscopic liquid absorbs heat and moisture of the exhaust gas, so that the amount of heat may be high and the concentration may be low. As such, the moisture absorption liquid may be circulated through the moisture absorption unit 110 , the moisture absorption liquid discharge pipe P6 , the storage unit 120 , and the moisture absorption liquid supply pipes P4 and P5 .

The storage unit 120 may store the moisture absorption liquid discharged from the moisture absorption unit 110 after absorbing moisture and heat from the exhaust gas, and may be provided in the form of a tank. The storage unit 120 may include a first motor 121 and a second motor 122 .

The first motor 121 circulates the absorbent liquid through the absorbent liquid supply pipes P4 and P5 connecting the storage unit 120 and the absorbent portion 110 for circulation of the absorbent liquid, and the second motor 122 . may supply the absorbent liquid to the absorbent liquid regeneration unit 132 through the pipe (P7).

The first white smoke heat exchanger 131 is located on the moisture absorption liquid supply pipes P4 and P5 between the storage unit 120 and the moisture absorption unit 110, and after recovering the amount of heat from the absorption liquid using cold water, the amount of heat The lowered moisture absorption liquid may be supplied to the moisture absorption unit 110 . At this time, the cold water that has absorbed the amount of heat from the absorbent liquid is converted into hot water as the temperature rises, and the hot water may be supplied as a heat source of the absorption chillers 400 and 200 through the hot water pipes P14 (P13, P14).

Here, the temperature of the cold water may be, for example, between 30° C. and 50° C., for example, when the temperature of the cold water is 40° C., the white smoke reduction device 100 may be operated with optimum efficiency.

The absorbent liquid regeneration unit 132 may serve to improve the chemical properties of the absorbent liquid absorbing moisture.

To this end, the absorbent liquid regeneration unit 132 may receive the absorbent liquid from the storage unit 120 and heat the absorbent liquid using high-temperature steam to separate moisture from the absorbent liquid in the form of water vapor.

At this time, the steam used as a heat source for heating the absorbent liquid may be condensed into condensed water. Here, steam may be supplied through a steam pipe P15 connected to the boiler 1 . Here, the steam may have a first temperature of any one of 140°C to 180°C, for example, 150°C.

In the moisture absorption liquid regeneration unit 132, the moisture absorption liquid and steam flow through separate pipes, and each pipe crosses and contacts each other, so that heat can be exchanged with each other. In the absorbent liquid regenerating unit 132 , while the absorbent liquid is heated by high-temperature steam, moisture contained in the absorbent liquid may be separated and generated as water vapor. Accordingly, the hygroscopic liquid having a high moisture content in the hygroscopic liquid regenerating unit 132 may change chemical properties to a hygroscopic liquid having a relatively low moisture content while discharging water vapor by steam.

The moisture absorption liquid having a relatively low moisture content and water vapor generated in the absorbent liquid regeneration unit 132 may be discharged to the gas-liquid separator 134 through the separation and discharge pipe P8.

In addition, the steam in the absorbent liquid regenerating unit 132 is converted to condensed water by losing heat by the absorbent liquid, and the condensed water may be supplied as a heat source of the absorption chillers 400 and 200 through the condensed water pipe P16.

Here, the condensed water may have a second temperature lower than the first temperature of the steam. For example, the second temperature of the condensate may be any one temperature lower than the first temperature in a temperature range between 90°C and 150°C.

The gas-liquid separator 134 is provided in the form of a cylinder with a space therein, is connected to the absorbent liquid regeneration unit 132 through a separation discharge pipe P8 on the side, and a water vapor discharge pipe P10 for discharging water vapor at the upper side. is connected, and a moisture absorption liquid recovery pipe P9 through which the moisture absorption liquid separated from water vapor is recovered to the storage unit 120 may be connected to the lower side.

Accordingly, when the absorbent liquid and water vapor discharged from the absorbent liquid regenerating unit 132 are introduced through the separation discharge pipe P8, the absorbent liquid is located at the lower portion and the water vapor is located at the upper portion in the gas-liquid separator 134. .

Accordingly, the absorbent liquid located inside the gas-liquid separator 134 may be recovered to the storage unit 120 through the absorbent liquid recovery pipe P9 connected to the lower portion of the gas-liquid separator 134 , and the gas-liquid separator 134 inside The water vapor located in may be supplied to the second white smoke heat exchanger 133 through the water vapor discharge pipe P10 connected to the upper part.

The second plume heat exchanger 133 is provided on the hot water pipes P14 (P13, P14) connected to the first plume heat exchanger 131, and may be connected to the gas-liquid separator 134 through the water vapor discharge pipe P10. .

The second plume heat exchanger 133 heats the hot water flowing in through the hot water pipes P14 and P13 connected to one side to the high-temperature steam flowing in through the water vapor discharge pipe P10, and then, the hot water pipe P14 connected to the other side. ) can be released through As described above, the hot water discharged through the hot water pipe P14 may be supplied to the absorption chiller 400 , 200 .

The hot water discharged through the second white smoke heat exchanger 133 may have any one third temperature lower than the second temperature of the condensate in the range of 80 ° C to 95 ° C, for example, the temperature of the hot water may be 85.1 ° C. .

In this way, the white smoke reduction device 100 that absorbs moisture and heat from the exhaust gas may discharge hot water and condensed water as waste hot water, as shown in FIG. 2 .

As described above with reference to FIG. 1 , the white smoke reduction device 100 according to the first embodiment of the present invention converts at least one waste heat water of hot water and condensed water to the ORC power generation device 200 and the Stirling engine 300 . ) and the absorption chiller 400 may be provided as a heat source.

3 is a view for explaining an example of the ORC power generation device 200 shown in FIG.

The ORC power generation device 200 uses the waste heat water of the plume abatement device 100 as a heat source to heat the first working fluid to produce electricity according to the organic Rankine cycle (ORC), an evaporator 210, a turbine ( 220 ), a generator 230 , a condenser 240 , and a pump 250 .

The evaporator 210 receives the waste heat water of the plume abatement device 100 through the first supply pipe SP1 and uses it as a heat source to change the state of the first working fluid into a high-temperature and high-pressure gas, and waste heat water used as a heat source may be discharged through the first connection pipe CP1.

The turbine 220 can convert the thermal energy of the first working fluid into mechanical energy by rotating the rotation shaft provided therein while expanding the first working fluid in the high-temperature and high-pressure gas state, and the generator 230 is the turbine 220 . It can be connected to the rotating shaft of the to generate electricity according to the rotation of the rotating shaft.

The condenser 240 may use the first cooling water to cool the gaseous first working fluid exiting from the turbine 220 to condense it into a liquid state. Here, the first cooling water that has absorbed the amount of heat from the first working fluid is sequentially supplied from the condenser 240 to the first pre-cooling unit 280 and the first main cooling unit 290, and the first pre-cooling unit 280 ) and after being cooled again in the first main cooling unit 290 , it may be recovered to the condenser 240 .

The pump 250 may supply the first working fluid condensed in the liquid state in the condenser 240 to the evaporator 210 .

4 is a view for explaining an example of the Stirling engine 300 shown in FIG.

As shown in FIG. 4 , the Stirling engine 300 may generate electricity by expanding and compressing the second working fluid in the enclosed space using a heat source. To this end, the Stirling engine 300 may include a high temperature unit 310 , a low temperature unit 320 , and a power generation unit 330 .

The high temperature part 310 and the low temperature part 320 form a jointly sealed space, but may be located in opposite directions, and the second operation is performed in the closed space jointly formed by the high temperature part 310 and the low temperature part 320 . It may be filled with fluid. As the second working fluid, gas, air as a mixed gas, hydrogen, helium, or the like as pure gas may be mainly used.

The high temperature part 310 may include a first cylinder 310A forming a closed space and a first piston 310B provided inside the first cylinder 310A, and a heat source outside the first cylinder 310A. Supply piping may be enclosed. Here, the first piston 310B may be connected to the flywheel of the power generation unit 330 through the crankshaft.

Such a high temperature part 310 receives the waste heat water of the first power generation device (eg, the ORC power generation device 200) through the first connection pipe CP1 and uses it as a heat source, inside the first cylinder 310A. The second working fluid may be heated and expanded to push the first piston 310B to the outside, and waste heat water of the Stirling engine 300 used as a heat source may be discharged through the second connection pipe CP2.

The low temperature part 320 may include a second cylinder 320A forming a closed space and a second piston 320B provided inside the second cylinder 320A, and the second cylinder 320A outside the second cylinder 320A. The piping through which the coolant flows may be enclosed. Here, the second piston 320B may be connected to the flywheel of the power generation unit 330 through the crankshaft.

The low-temperature part 320 uses the second coolant to cool the high-temperature and high-pressure second working fluid introduced into the second cylinder 320A, and compresses the second working fluid, thereby forming the second piston 320B. can be pulled inward.

The second cooling water, which has absorbed heat from the second working fluid in the low-temperature unit 320 , is sequentially supplied from the low-temperature unit 320 to the second pre-cooling unit 380 and the second main cooling unit 390 , and the second pre-cooling After being cooled again in the unit 380 and the second main cooling unit 390 , it may be recovered to the low temperature unit 320 . Meanwhile, although not shown in FIG. 4 , the second strong cold water of the absorption refrigerator 400 shown in FIG. 5 may be used as a refrigerant for cooling the low temperature part 320 of the Stirling engine 300 .

The power generation unit 330 may generate electricity by rotating a flywheel that rotates by reciprocating motion of each piston provided in the high temperature unit 310 and the low temperature unit 320 . That is, the first piston 310B provided in the high temperature unit 310 and the second piston 320B provided in the cooling unit repeatedly expand and compress the second working fluid to rotate the flywheel of the power generation unit 330 . and, through this, electricity may be generated in the power generation unit 330 .

5 is a view for explaining an example of the absorption refrigerator 400 shown in FIG.

The absorption chiller 400 shown in FIG. 5 may serve to cool the first cold water supplied from the outside using the latent heat of evaporation of the refrigerant and re-supply it to the outside by cooling the second cold water. After cooling the building, the absorption chiller 400 may receive the first cold water having an increased temperature, cool it, convert it to the second cold water, and then re-supply it to the building.

Here, the first cold water may be between 10 °C and 20 °C, and the first cold water may be between 5 °C and 10 °C.

To this end, the absorption chiller 400 may include a refrigerant regenerator 420 , a condenser 430 , an evaporator 440 , an absorber 410 , and a third main cooling unit 490 .

The refrigerant regenerator 420 may serve to separate the refrigerant used when cooling the first cold water with the second cold water from the diluted aqueous solution. That is, the refrigerant regenerator 420 may receive waste heat water from the white smoke reduction device 100 of the absorption chiller 400 as a heat source, heat the diluted aqueous solution, and separate the refrigerant in the form of evaporated water from the diluted aqueous solution.

The concentrated aqueous solution in which the refrigerant is separated from the diluted aqueous solution in the refrigerant regenerator 420 may be re-supplied to the absorber 410 through the concentrated solution pipe P421.

The refrigerant regenerator 420 is a heat source used in the refrigerant regenerator 420 and may receive the waste heat water of the white smoke abatement device 100 through the second supply pipe SP2, and the absorption chiller 400 used as a heat source. Waste hot water can be discharged through a recovery pipe (RP).

The condenser 430 is connected to the refrigerant regenerator 420 through the connection passage P422, the cooling water flows through the pipe therein, and the condensed water discharge pipe P431 through which the condensed refrigerant is discharged may be connected to the lower portion.

The condenser 430 may receive the refrigerant in the form of water vapor generated from the refrigerant regenerator 420 , and convert the refrigerant in the form of vapor to a liquid state by using the third cooling water flowing therein. Here, the refrigerant condensed into a liquid may be discharged to the evaporator 440 through the condensed water discharge pipe P431 connected to the lower portion of the condenser 430 .

The evaporator 440 may have a condensate discharge pipe P431 connected to the condenser 430 connected to the upper side, and a pipe through which the first cold water flows may be provided, and a connection passage connected to the absorber 410 on the side side ( 440) may be provided.

The evaporator 440 may use the latent heat of evaporation of the refrigerant to cool the first cold water introduced through an internal pipe to the second cold water.

The evaporator 440 maintains the inside in a high vacuum state of about 6.5 mmHg so that the refrigerant evaporates, evaporates the liquid refrigerant, and uses the latent heat of evaporation when the refrigerant is evaporated. The cold water may be cooled with the second cold water.

The evaporator 440 may include a spray nozzle in order to facilitate evaporation of the refrigerant. The injection nozzle may be positioned above the evaporator 440 to inject the liquid refrigerant. Here, the liquid refrigerant accumulated in the lower side of the evaporator 440 may be moved upward in the evaporator 440 via the pipe P441 and may be sprayed.

The inside of the evaporator 440 is maintained in a high vacuum state, so that when the refrigerant is sprayed, it may be more easily evaporated in the form of vapor. At this time, due to the generated latent heat of evaporation, the inside of the evaporator 440 is maintained at approximately 5° C. by the evaporation temperature (eg, 5° C.) of the refrigerant, and the first strong cold water having a temperature between 10° C. and 20° C. is 5° C. It can be cooled with a second cold water having a temperature of ~ 10 °C.

The absorber 410 is connected to the evaporator 440 through the connection passage P442, receives the refrigerant in the vapor state generated inside the evaporator 440, and a concentrated solution pipe connected to the refrigerant regenerator 420 at the upper portion ( A concentrated aqueous solution can be supplied through P421).

The absorber 410 may inject the concentrated aqueous solution from the upper side in the absorber 410 so that the refrigerant having a vapor form is absorbed by the concentrated aqueous solution.

Here, the third cooling water flowing through the pipe in the absorber 410 lowers the temperature of the concentrated aqueous solution, thereby preventing the temperature in the absorber 410 and the evaporator 440 from rising.

This third cooling water absorbs heat while cooling the inside of the absorber 410 and the condenser 430 while circulating the absorber 410, the condenser 430, and the third main cooling unit 490 through the pipe, It may be cooled by the third main cooling unit 490 .

As described above, the multi-type waste heat recycling system according to the first embodiment of the present invention converts at least one waste heat water of hot water and condensate discharged from the plume abatement device 100 to the ORC power generation device 200, the Stirling engine 300 and the absorption type. By providing the refrigerator 400 as a heat source, the utilization of waste heat water such as hot water or condensed water can be further increased.

6 is a view for explaining a multi-type waste heat recycling system according to a modified example of the first embodiment of the present invention.

In FIG. 6 or less, the description of the same configuration as that described with reference to FIGS. 1 to 5 is replaced with the above description, and other parts will be mainly described.

As shown in FIG. 6 , in the multi-purpose waste heat recycling system according to a modification of the first embodiment of the present invention, the second heat exchanger 520 may be located between the rear end of the second power generation device and the recovery pipe RP. .

The second heat exchanger 520 receives the second cold water supplied from the absorption chiller 400, and uses the second cold water to cool the waste heat water of the second power generation device (eg, Stirling engine) to the first heat exchanger. 510 can be supplied.

Accordingly, the second heat exchanger 520 is the waste heat water of the plume abatement device 100 that has absorbed a relatively large amount of heat from the first power generation device (eg, ORC power generation device) and the second power generation device (eg Stirling engine). can be pre-cooled, and by cooling the waste heat water discharged from the second heat exchanger 520 in the first heat exchanger 510 and the waste heat water of the absorption chiller 400 together once again, A decrease in efficiency can be prevented.

In the first embodiment of the present invention so far, the case where the waste heat water of the white smoke reduction device 100 is supplied in series to the first power generation device and the second power generation device has been described as an example, but the present invention is not limited thereto. , the waste heat water of the white smoke reduction device 100 may be supplied in parallel to the first power generation device and the second power generation device.

This will be described in more detail as shown in FIG. 7 below.

7 is a view for explaining a multi-type waste heat recycling system according to a second embodiment of the present invention.

In the above-mentioned multi-type waste heat recycling system according to the second embodiment of the present invention, the white smoke abatement device 100 converts the waste heat water of the white smoke abatement device 100, which is at least one of hot water and condensed water, to the ORC power generation device 200 and the Stirling engine ( 300) was supplied in series and parallel to the absorption chiller 400, but in the second embodiment of the present invention, differently from this, the white smoke abatement device 100 converts the waste heat water of the white smoke abatement device 100 into an ORC power generation device ( 200), the Stirling engine 300 and the absorption chiller 400 may be supplied in parallel.

To this end, a plurality of supply pipes connected to at least one of the hot water pipe P14 and the condensate pipe P16 of the plume abatement device 100 is connected to the ORC power generation device 200, the Stirling engine 300 and the absorption chiller 400, respectively. can be connected to

In FIG. 7 , as an example, a case in which each of the plurality of supply pipes is connected to the hot water pipe P14 and the condensed water pipe P16 of the white smoke reduction device 100 is illustrated as an example.

Accordingly, the white smoke reduction device 100 is provided to the ORC power generation device 200 , the Stirling engine 300 , and the absorption chiller 400 through each of a plurality of supply pipes connected in parallel to the white smoke reduction device 100 . The waste heat water of the device 100 may be supplied.

For example, as shown in FIG. 7 , the first supply pipe SP1 is connected between the plume reduction device 100 and the ORC power generation device 200 , and the plume reduction device 100 is connected to the first supply pipe SP1 through the first supply pipe SP1 . The waste heat water of the plume abatement device 100 may be supplied to the ORC power generation device 200 .

In addition, a second supply pipe (SP2) is connected between the plume reduction device 100 and the absorption chiller 400, so that the plume abatement device 100 is supplied to the absorption chiller 400 through the second supply pipe SP2. Waste heat water of the reduction device 100 may be supplied.

In addition, a third supply pipe SP3 is connected between the plume abatement device 100 and the Stirling engine 300, so that the plume abatement device 100 supplies the white smoke to the Stirling engine 300 through the third supply pipe SP3. Waste heat water of the reduction device 100 may be supplied.

In addition, the waste heat water of the ORC power generation device 200 may be discharged through the first connection pipe (CP1), the waste heat water of the Stirling engine 300 may be discharged through the second connection pipe (CP2), The first connection pipe CP1 and the second connection pipe CP2 may be connected to the recovery pipe RP together. In this case, the first connection pipe CP1 may be connected to the recovery pipe RP through the second connection pipe CP2 as shown in FIG. 7 , for example.

The first heat exchanger 510 heats and cools the waste heat water of the ORC power generation device 200, the waste heat water of the Stirling engine 300, and the waste heat water of the absorption chiller 400 together, and the white smoke through the recovery pipe (RP). The cold water of the reduction device 100 may be re-supplied.

8 is a view for explaining a multi-type waste heat recycling system according to a modified example of the second embodiment of the present invention.

As previously described with reference to FIG. 6 , the multi-type waste heat recycling system according to the modified example of the second embodiment of the present invention is also shown in FIG. 8 , the second heat exchanger 520 is the ORC generator 200 . And it may be located between the rear end of the Stirling engine 300 and the recovery pipe (RP).

The second heat exchanger 520 receives the second cold water from the absorption chiller 400 and uses the second cold water to cool the waste heat water discharged from the ORC power generation device 200 and the Stirling engine 300 , It may be supplied to the first heat exchanger 510 .

Accordingly, the second heat exchanger 520 may pre-cool the waste heat water of the plume abatement device 100 that has absorbed a relatively large amount of heat from the first power generation device and the second power generation device, and the first heat exchanger 510 ), by cooling the waste heat water discharged from the second heat exchanger 520 and the waste heat water of the absorption chiller 400 together once again, it is possible to prevent the efficiency of the plume abatement device 100 from being lowered.

As such, the multi-type waste heat recycling system according to the present invention converts at least one waste heat water of hot water and condensate discharged from the white smoke reduction device 100 to the ORC power generation device 200, the Stirling engine 300 and the absorption chiller 400. By providing it as a heat source, the utilization of waste heat water such as hot water or condensed water can be further increased.

The technical features disclosed in each embodiment of the present invention are not limited only to the embodiment, and unless they are incompatible with each other, the technical features disclosed in each embodiment may be combined and applied to different embodiments.

Accordingly, in each embodiment, each technical feature will be mainly described, but unless the technical features are incompatible with each other, they may be merged and applied.

The present invention is not limited to the above-described embodiments and the accompanying drawings, and various modifications and variations will be possible from the point of view of those of ordinary skill in the art to which the present invention pertains. Accordingly, the scope of the present invention should be defined not only by the claims of the present specification, but also by those claims and their equivalents.

1: Boiler 100: White smoke reduction device
200: ORC generator 300: Stirling engine
400: absorption chiller

Claims (20)

Absorbs moisture and heat from the exhaust gas using a moisture absorbent, but uses cold water to absorb heat from the absorbent, then discharges hot water, regenerates the absorbent using steam, and then discharges condensed water Device;
an ORC power generation device that heats a first working fluid using a heat source and generates electricity according to an organic Rankine cycle (ORC) of the first working fluid; and
An absorption type refrigerator for cooling the first strong cold water supplied from the outside using the latent heat of evaporation of the refrigerant and re-supplying it to the outside with the second cold water, and regenerating the refrigerant using a heat source,
The white smoke reduction device provides the waste heat water of the white smoke reduction device, which is at least one of the hot water and the condensed water, to the ORC power generation device and the absorption refrigerator in parallel,
A first heat exchanger for cooling the waste heat water used as a heat source in the ORC power generation device and the absorption chiller and supplying the cold water to the plume abatement device; further comprising,
The first heat exchanger receives the second strong cold water from the absorption chiller to cool the waste heat water. Absorbs moisture and heat from the exhaust gas using a moisture absorbent, but uses cold water to absorb heat from the absorbent, then discharges hot water, regenerates the absorbent using steam, and then discharges condensed water Device;
a Stirling engine that uses a heat source to expand and compress a second working fluid in an enclosed space to generate electricity; and
An absorption type refrigerator for cooling the first strong cold water supplied from the outside using the latent heat of evaporation of the refrigerant and re-supplying it to the outside with the second cold water, and regenerating the refrigerant using a heat source,
The white smoke reduction device provides the waste heat water of the white smoke reduction device, which is at least one of the hot water and the condensed water, to the Stirling engine and the absorption refrigerator in parallel;
A first heat exchanger for cooling the waste heat water used as a heat source in the Stirling engine and the absorption chiller and supplying the cold water to the white smoke reduction device;
The first heat exchanger receives the second strong cold water from the absorption chiller to cool the waste heat water. Absorbs moisture and heat from the exhaust gas using a moisture absorbent, but uses cold water to absorb heat from the absorbent, then discharges hot water, regenerates the absorbent using steam, and then discharges condensed water Device;
an ORC power generation device that heats a first working fluid using a heat source and generates electricity according to an organic Rankine cycle (ORC) of the first working fluid;
a Stirling engine that uses a heat source to expand and compress a second working fluid in an enclosed space to generate electricity; and
An absorption type refrigerator for cooling the first strong cold water supplied from the outside using the latent heat of evaporation of the refrigerant and re-supplying it to the outside with the second cold water, and regenerating the refrigerant using a heat source,
The white smoke abatement device provides waste heat water of the white smoke abatement device, which is at least one of the hot water and the condensed water, to the ORC power generation device and the Stirling engine in series or in parallel, and the absorption chiller includes the ORC power generation device and the Stirling engine in parallel. provided by
A first heat exchanger for cooling the waste heat water used as a heat source in the ORC power generation device, the Stirling engine, and the absorption chiller and supplying the cold water to the white smoke reduction device;
The first heat exchanger receives the second strong cold water from the absorption chiller to cool the waste heat water. 4. The method of claim 3,
The multi-purpose waste heat recycling system further comprising a first supply pipe connected to at least one of a hot water pipe for discharging the hot water and a condensate pipe for discharging the condensed water. 5. The method of claim 4,
The white smoke abatement device provides the waste heat water of the white smoke abatement device, which is at least one of the hot water and the condensed water, to the ORC power generation device and the Stirling engine in series,
The plume abatement device supplies the waste heat water of the plume abatement device to a first power generation device that is one of the ORC power generation device and the Stirling engine through the first supply pipe,
The first power generation device supplies the waste heat water of the first power generation device to a second power generation device that is the other power generation device among the ORC power generation device and the Stirling engine. 6. The method of claim 5,
One end is connected to the cold water pipe for supplying the cold water to the white smoke reduction device, the other end further comprises a recovery pipe connected to the second power generation device and the absorption refrigerator,
A multi-purpose waste heat recycling system in which the first heat exchanger is provided on the recovery pipe. 7. The method of claim 6,
The second power generation device is a multi-type waste heat recycling system for discharging the waste heat water of the second power generation device to the recovery pipe. 7. The method of claim 6,
Further comprising a second supply pipe connected to at least one of the hot water pipe and the condensed water pipe separately from the first supply pipe,
The white smoke reduction device is a multi-type waste heat recycling system for supplying the waste heat water of the white smoke reduction device to the absorption refrigerator through the second supply pipe. 9. The method of claim 8,
The absorption chiller
A multi-purpose waste heat recycling system for using the waste heat water of the plume abatement device supplied through the second supply pipe as a heat source for regenerating the refrigerant, and discharging the waste heat water of the absorption refrigerator to the recovery pipe. 10. The method of claim 9,
The first heat exchanger is a multi-type waste heat recycling system for cooling the waste heat water of the second power generation device introduced through the recovery pipe and the waste heat water of the absorption refrigerator together. 7. The method of claim 6,
A second heat exchanger located between the rear end of the second power generation device and the recovery pipe, receiving the second strong cold water from the absorption refrigerator, cooling the waste heat water of the second power generation device, and supplying the second heat exchanger to the first heat exchanger. Versatile waste heat recycling system. 4. The method according to any one of claims 1 to 3,
The white smoke reduction device is
a moisture absorption unit for absorbing moisture and heat from the exhaust gas using the moisture absorption liquid and then discharging the exhaust gas to the atmosphere;
a storage unit configured to store the moisture absorption liquid that has absorbed the moisture and heat from the exhaust gas;
A first heat exchanger located between the storage part and the moisture absorption part, recovering heat amount from the moisture absorption liquid using the cold water, and supplying the moisture absorption liquid from which the heat amount was taken to the moisture absorption part, and discharging the hot water ; and
Multi-species waste heat including; after receiving the absorbent liquid from the storage unit, regenerating the absorbent liquid using the steam, supplying the regenerated absorbent liquid to the storage unit, and discharging the condensed water recycling system. 6. The method of claim 5,
The first power generation device is the ORC power generation device,
The ORC power generation device includes an evaporator, a turbine, a generator, a condenser and a pump operating according to an organic Rankine cycle (ORC),
The evaporator uses the waste heat water of the plume abatement device as a heat source to change the state of the first working fluid into a high-temperature and high-pressure gas, and discharges the waste heat water used as the heat source,
The turbine rotates a rotating shaft provided therein while expanding the first working fluid in a high-temperature and high-pressure gas state,
The generator is connected to the rotating shaft to generate electricity according to the rotation of the rotating shaft,
The condenser cools the first working fluid by using the first cooling water, thereby condensing the first working fluid in a gaseous state into a liquid state. 14. The method of claim 13,
The multi-purpose waste heat recycling system further comprising a first main cooling unit receiving the first cooling water from the condenser, cooling it, and re-supplying the first cooling water to the condenser. 15. The method of claim 14,
A first pre-cooling unit disposed between the condenser and the first main cooling unit, receiving the second strong cold water from the absorption refrigerator, pre-cooling the first cooling water, and supplying the first main cooling unit to the first main cooling unit Versatile waste heat recycling system. 6. The method of claim 5,
The second power generation device is the Stirling engine,
The Stirling engine includes a power generation unit for generating electricity by reciprocating motion of each piston provided in the high temperature part and the low temperature part, and the high temperature part and the low temperature part, which forms the jointly sealed space, and is located in opposite directions,
The high temperature part uses the waste heat water of the first power generation device as a heat source to expand the second working fluid inside the first cylinder forming the sealed space to push the first piston outward, and waste heat used as a heat source drain the number,
The low-temperature part compresses the second working fluid inside a second cylinder forming the sealed space with a second coolant to draw a second piston inward. 17. The method of claim 16,
and a second main cooling unit receiving the second cooling water from the low temperature unit, cooling it, and then re-supplying the second cooling water to the low temperature unit. 18. The method of claim 17,
It is disposed between the low-temperature part and the second main cooling part, receiving the second strong cold water from the absorption chiller, pre-cooling the second cooling water and supplying the second main cooling part to the second main cooling part further comprising Versatile waste heat recycling system. 4. The method according to any one of claims 1 to 3,
The absorption refrigerator further includes a regenerator, a condenser, an evaporator and an absorber,
The regenerator uses the waste heat water of the plume abatement device to heat the diluted aqueous solution containing the coolant, and separates the coolant from the diluted aqueous solution in the form of water vapor,
The condenser receives the refrigerant evaporated in the form of water vapor from the regenerator and condenses the refrigerant using a third cooling water,
The evaporator receives the refrigerant from the condenser and uses the latent heat of evaporation of the refrigerant to cool the first cold water to the second cold water,
The absorber receives the concentrated aqueous solution from which the refrigerant is separated from the regenerator, absorbs the refrigerant having a vapor form vaporized by the latent heat of evaporation using the concentrated aqueous solution, and supplies the diluted aqueous solution to the regenerator. recycling system. 4. The method of claim 3,
The white smoke reduction device provides the waste heat water of the white smoke reduction device, which is at least one of the hot water and the condensed water, to the ORC power generation device and the Stirling engine in parallel,
Further comprising a plurality of supply pipes respectively connected to at least one of the hot water pipe for discharging the hot water and the condensed water pipe for discharging the condensed water,
The plume abatement device is a multi-type waste heat recycling system for supplying the waste heat water of the plume abatement device to the ORC power generation device, the Stirling engine, and the absorption refrigerator through each of the plurality of supply pipes.

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