KR102110891B1 - Quad-generation system having dehydrating structure and method for operating the system - Google Patents

Abstract

The present invention relates to a quadruple power generation system having a water removal structure and an operating method, and more specifically, to remove the water more effectively while improving the overall system efficiency in a quadruple power generation system that produces electricity, heating, cooling, and CO ₂ It relates to a quadruple power generation system and a method of operation having a water removal structure to enable.

Description

Quad-generation system having dehydrating structure and method for operating the system

The present invention relates to a quadruple power generation system having a water removal structure and an operating method, and more specifically, to remove the water more effectively while improving the overall system efficiency in a quadruple power generation system that produces electricity, heating, cooling, and CO ₂ It relates to a quadruple power generation system and a method of operation having a water removal structure to enable.

Gas engine generator refers to a device that generates electricity by rotating the generator using an internal combustion engine that uses clean low-carbon gas fuel (NG, LPG, synthetic gas). In general, a large amount of heat is generated in the internal combustion engine, and thus, the internal combustion engine is provided with a structure that cools the internal combustion engine by absorbing excessive heat while circulating coolant around the internal combustion engine. At this time, the coolant that has absorbed heat and became high temperature returns to the internal combustion engine again to dissipate heat to absorb heat. The waste heat may be used to perform heating, and also a cooling cycle including a heat pump. Cooling can also be performed. In this way, a gas engine generator can be used to produce electricity, cooling, and heating, not just electricity, but a system capable of producing electricity, cooling, and heating is called a tri-generation system. . The triple power generation system has been introduced to places such as small-scale residential areas and facility horticultural complexes of the village level, and is utilized to supply electricity, cooling, and heating in an environmentally friendly manner. This triple power generation system technology is well disclosed in Korean Patent Registration No. 1569677 ("Trizen system using high-heeled combustion and its control method", November 11, 2015).

Meanwhile, in recent years, mainly in large cities in developed countries such as North America and Europe, the introduction of urban type smart farms, in which greenhouses are installed directly on the roof of buildings to supply fresh crops to people quickly and easily, is spreading. Such facilities require electricity to supply various equipment for crop cultivation, heating and cooling to adjust the temperature to be suitable for crop growth, and also need to supply CO ₂ to promote crop growth.

Conventionally, a triple power generation system including a gas engine generator as described above in emergency power generation, distributed power generation, cogeneration, etc. has been used, and the exhaust gas discharged here includes carbon dioxide (CO ₂ ). Therefore, when a triple power generation system is applied to facilities such as facility gardening or an urban smart farm, attempts have been made to utilize CO ₂ in naturally occurring exhaust gas. At this time, since the harmful gases such as nitrogen oxide (NOx), carbon monoxide (CO), and unburned hydrocarbon (UHC), as well as CO ₂ are mixed in the exhaust gas generated by the internal combustion engine, the exhaust gas is passed through various catalyst devices. After removing the harmful gas, supply the remaining CO ₂ to the plant. In this way, in the case of producing CO ₂ in a triple power generation system, four types of electricity, heating, cooling, and CO ₂ are produced, so this can be called a quad power generation system.

However, it is known that the purified exhaust gas supplied from the currently used quadruple power generation system contains not only CO ₂ but also excessive moisture. When supplying purified exhaust gas discharged from a quadruple power generation system to supply CO ₂ in a greenhouse, the humidity in the greenhouse rises excessively due to moisture contained in the supplied exhaust gas unnecessarily, which is the growth of crops. Causing other adverse effects on the computer.

Humidity is also one of the control conditions for crop growth. If excessive moisture is supplied in the process of supplying CO ₂ , ventilation is required to control humidity in the greenhouse. However, when ventilation is performed, the concentration of CO ₂ in the greenhouse decreases to the atmospheric level, and then the dilemma of supplying CO ₂ is again caused. Accordingly, efforts have been made, such as placing a water absorbent in the path through which the purified exhaust gas is distributed, but there is a problem in that sufficient moisture removal cannot be achieved with the existing configuration.

1. Korean Patent Registration No. 1569677 ("Trizen system using Go Hee-bak combustion and control method thereof", Nov. 11, 2015)

Therefore, the present invention has been devised to solve the problems of the prior art as described above, and the object of the present invention is to improve overall system efficiency while improving overall system efficiency in a quadruple power generation system that produces electricity, heating, cooling, and CO ₂ . It is to provide a quadruple power generation system and a method of operation having a moisture removal structure, which can remove moisture. More specifically, a quadruple power generation system that produces electricity, heating, cooling, and CO ₂ that introduces an absorbing freezer for cooling but allows CO ₂ to cool through the evaporation part of the absorbing freezer to more effectively remove moisture. It is to provide a quadruple power generation system and a method of operation having a moisture removal structure, which is made to remove moisture while improving overall system efficiency.

A quadruple power generation system having a water removal structure of the present invention for achieving the above object is made of an internal combustion engine, the engine 150 in which cooling water flows around; A generator 110 rotated by the engine 150 to perform power generation; A heating unit 120 that absorbs heat generated from the engine 150 and performs heating using coolant that has become hot; An air-conditioning unit 130 formed in the form of an absorption type refrigerator and absorbing heat generated from the engine 150 to perform cooling using coolant that has become hot; By discharging the exhaust gas discharged from the engine 150 to purify harmful substances, and cooling the exhaust gas by passing through the cooling unit 130 to remove moisture contained in the exhaust gas, CO as a form included in the exhaust gas CO ₂ unit 140 for supplying a _second; It may include.

At this time, the cooling unit 130 is formed in the form of a sealed container that accommodates water therein, and the inside is formed at a low pressure equivalent to vacuum, so that the evaporation unit 131 evaporates water to generate water vapor, and the refrigerant is inside. It is formed in the form of a circulating heat exchanger, and is provided in the evaporator 131 to provide evaporative heat for evaporating water in the evaporator 131, thereby evaporating the heat exchanger 131h to cool the refrigerant, and evaporating heat exchanger It is connected to the group (131h) is formed in the form of a heat exchanger in which the refrigerant circulates therein, and is cooled in the evaporation part heat exchanger (131h) to heat the refrigerant in a relatively lower temperature than the outside to perform external cooling. Cooling part heat exchanger (130h), is formed in the form of a sealed container to receive the absorbent liquid therein, absorber 132 to absorb water vapor generated from the evaporator 131 and absorb it as an absorbent liquid, absorbent liquid It is formed in the form of a sealed container accommodated therein, and absorbs the absorbent liquid from the absorbent portion 132 through the absorbent portion passage 132p, and heat is applied to regenerate the absorbent liquid by evaporating and separating the absorbent liquid from the absorbent liquid. The regeneration unit 133 supplied to the unit 132 is formed in the form of a heat exchanger that absorbs heat generated from the engine 150 and circulates inside the coolant that has become high temperature, and heats the heat to the regeneration unit 133. The regeneration unit heat exchanger (133h) to be supplied is formed in the form of a sealed container that accommodates water vapor therein, and the water vapor generated from the regeneration unit (133) is introduced to cool and condense to generate water to generate water. Cooling by absorbing condensation heat for condensing water vapor in the condensing unit 134, provided in the condensing unit 134, is formed in the form of a heat exchanger in which the refrigerant circulates, It is connected to the condensing part heat exchanger (134h) for heating, and is connected to the condensing part heat exchanger (134h) to form a heat exchanger in which a refrigerant circulates therein. The cooling tower 135 may perform cooling of the refrigerant by heat-exchanging the refrigerant in a high temperature state with the outside.

In addition, the CO ₂ part 140 is formed in the form of a heat exchanger through which exhaust gas discharged from the engine 150 flows inside, and is provided in the evaporation part 131 to supply water in the evaporation part 131. It may include a CO ₂ secondary heat exchanger (140h) for cooling the exhaust gas by providing the heat of evaporation for evaporation.

In addition, the CO ₂ unit 140 may include a drain unit 141 that discharges water condensed and removed from the exhaust gas to the outside as the saturated water vapor amount of the exhaust gas is reduced by cooling.

In addition, the CO ₂ part 140 is formed in the form of a container containing a hygroscopic agent, and is further provided in the rear end of the drain part 141, further comprising a moisture absorbing part 145 that absorbs and removes moisture remaining in the exhaust gas. can do.

In addition, the CO ₂ part 140 is provided on a flow path of the exhaust gas discharged from the engine 150 to remove at least one oxidation catalyst 142a, 142b, and the oxidation catalyst 142a ( 142b) may further include at least one oxygen sensor 143a, 143b provided at the front, and a NOx sensor 144 provided at the rear of the oxidation catalysts 142a, 142b.

In addition, the heating unit 120 is formed in the form of a heat exchanger that absorbs heat generated from the engine 150 and heats the coolant that has become high temperature to circulate inside, and is heated by the engine 150 to be relatively hotter than the outside. It may include a heating unit heat exchanger (120h) for performing external heating by heat exchange with the cooling water in the state.

In addition, the heating unit 120 may further include a hot water supply unit 121 that absorbs heat generated from the engine 150 and generates hot water using cooling water that has become hot.

In addition, the operating method of the quadruple power generation system having a water removal structure of the present invention is made of an internal combustion engine, and an engine operation step in which fuel is supplied to and operated by an engine 150 in which coolant flows around; A power generation performance step in which power generation is performed by rotating the power generation unit 110 by the engine 150; A heating performance step of heating by the heating unit 120 by using cooling water that has absorbed heat generated from the engine 150 and became hot; A cooling performing step in which cooling is performed by using cooling water which has absorbed heat generated from the engine 150 and has been heated by a cooling unit 130 made of an absorption type refrigerator; By the CO ₂ part 140, the exhaust gas discharged from the engine 150 is circulated to purify harmful substances, and through the cooling part 130, the exhaust gas is cooled to remove moisture contained in the exhaust gas. , CO ₂ supply step in which CO ₂ is supplied as the type included in the exhaust gas; It may include.

At this time, in the cooling step, the inside of the evaporator 131 is formed at a low pressure equivalent to vacuum to evaporate water to generate water vapor, and circulate inside the evaporator heat exchanger 131h provided in the evaporator 131 An evaporation step in which the refrigerant to be cooled is provided by providing evaporation heat for evaporating water in the evaporation unit 131; The cooling heat exchanger 130h, which is connected to the evaporation heat exchanger 131h and the refrigerant circulates therein, is cooled in the evaporation heat exchanger 131h and heats the refrigerant, which is relatively colder than the outside, to the outside. A cooling step of performing cooling; An absorption step in which water vapor generated from the evaporation unit 131 is introduced into the absorption unit 132 for receiving the absorption liquid and absorbed into the absorption liquid; The regeneration unit 133 receives the absorption liquid from the absorption unit 132 through the absorption unit flow path 132p, and absorbs heat generated from the engine 150, and the regeneration unit circulates cooling water having a high temperature inside. A regeneration step in which the heat supplied by the heat exchanger (133h) is applied and the water vapor is evaporated and separated from the absorption liquid to regenerate the absorption liquid; A condensation step in which the condensation unit 134 receives water vapor generated from the regeneration unit 133 and cools it to condense to generate water to supply it to the evaporation unit 131; It may include.

In addition, the CO ₂ supplying step is a cooling step in which the exhaust gas is cooled by passing through the cooling part 130, and as the saturated water vapor amount of the exhaust gas is reduced by cooling, moisture in the exhaust gas is condensed and discharged from the exhaust gas as water. It may include a dehydration step to be removed.

In this case, the cooling step may be performed such that the exhaust gas is cooled by providing evaporation heat for evaporating water in the evaporation part 131 while passing through the CO ₂ sub-heat exchanger 140h provided in the evaporation part 131. have.

In addition, the CO ₂ supply step, after the dehydration step, may further include a moisture absorption step in which the exhaust gas passes through the hygroscopic agent to further remove moisture remaining in the exhaust gas.

In addition, the CO ₂ supply step may further include a purification step in which harmful gas is purified by passing the exhaust gas discharged from the engine 150 through at least one oxidation catalyst 142a and 142b prior to the cooling step. have.

According to the present invention, in a quadruple power generation system that produces four types of electricity, heating, cooling, and CO ₂ , an absorption type air conditioner structure is introduced for cooling and CO ₂ is discharged in a portion where cooling of the absorption type air conditioner is performed. Cooling the exhaust gas by allowing the gas to pass, has a great effect of effectively removing moisture in the exhaust gas. More specifically, by reducing the amount of saturated water vapor by cooling in the process of discharging the discharged gas, and thus condensing and dropping off unnecessary moisture in the discharged gas, it is possible to obtain a discharged gas with much more moisture removed than before. Will be.

Conventionally, the exhaust gas generated from the quadruple power generation system has a problem that it is not directly supplied to the greenhouse for growing crops because it contains excessive moisture as well as CO _2. However, according to the present invention, the moisture in the exhaust gas is effectively removed. Accordingly, there is an effect capable of sufficiently supplying and utilizing CO ₂ generated from the quadruple power generation system in the greenhouse. That is, in the past, the quadruple power generation system was unsuitable for use in the actual field, but according to the present invention, by solving the problem of excessive moisture supply when supplying CO ₂ , as a result, the quadruple power generation system can be used very practically in practice. It has the effect of making it available.

1 is a quadruple power generation system of the present invention.
Figure 2 is a power generation unit of the quadruple power generation system of the present invention.
3 is a heating unit of the quadruple power generation system of the present invention.
4 is a cooling unit of the quadruple power generation system of the present invention.
5 is a part of CO ₂ of the quadruple power generation system of the present invention.

Hereinafter, a quadruple power generation system and a method of operation having a water removal structure according to the present invention having the above-described configuration will be described in detail with reference to the accompanying drawings.

Quadruple power generation system with water removal structure of the present invention

1 schematically shows a quadruple power generation system of the present invention, as shown, the quadruple power generation system 100 of the present invention includes a power generation unit 110, a heating unit 120, and a cooling unit 130. , CO ₂ part 140, the engine 150. The quadruple power generation system 100 of the present invention is basically made in the form of an internal combustion engine and is made to produce four types of electricity, heating, cooling, and CO ₂ by operating the engine 150 in which coolant flows around. Hereinafter, each part will be described in more detail.

FIG. 2 illustrates the power generation unit of the quadruple power generation system of the present invention with more emphasis, and the power generation unit 110 rotates by the engine 150 to perform power generation.

A generator is a device that converts mechanical energy into electrical energy, and consists of the principle of generating electromotive force using electromagnetic induction using a rotating rotor. In addition, in general, a generator using an internal combustion engine generates electricity by generating high-temperature and high-pressure water vapor by using heat generated from the internal combustion engine, and uses it to produce electric power by turning a steam turbine as a rotating machine. Since the specific configuration or principle of such a generator is generally well known, detailed descriptions thereof are omitted here.

FIG. 3 shows the heating part of the quadruple power generation system of the present invention with more emphasis, and the heating part 120 absorbs heat generated from the engine 150 and performs heating using cooling water that has become hot. Plays a role.

More specifically, the heating unit 120 may perform heating using the heating unit heat exchanger 120h as shown in FIG. 3. The heating part heat exchanger (120h) is formed in the form of a heat exchanger that absorbs heat generated from the engine 150 and heats the coolant that has become hot to circulate inside, and is heated by the engine 150 to be relatively hotter than the outside. The external cooling is performed by exchanging the cooling water in a state with the outside. That is, the heating unit heat exchanger (120h), for example, may be made in the form of a radiator, or may be made in the form of a hot water pipe on the floor of an ondol room, such as any device that performs heating using heat exchange of hot water. It can be done.

In addition, the heating unit 120 may further include a hot water supply unit 121 as shown in FIG. 3. The hot water supply unit 121 absorbs heat generated from the engine 150 to produce hot water using cooling water that has become hot. More specifically, it is as follows. Since the hot water itself that has passed through the engine 150 may contain harmful substances and foreign substances, it is difficult to directly supply it as living water for human use. Accordingly, a separate heat exchanger is provided in the hot water supply unit 121, and clean living water stored in the hot water supply unit 121 or supplied through a water pipe is heated using hot water passing through the separate heat exchanger. Thus, it is possible to supply heated living water.

FIG. 4 shows the cooling part of the quadruple power generation system according to the present invention with more emphasis, and the cooling part 130 is formed in the form of an absorption type refrigerator, and absorbs heat generated from the engine 150 to become high temperature cooling water. Use to serve to perform cooling. The cooling unit 130, as shown in FIG. 4, largely includes an evaporation unit 131, an absorption unit 132, a regeneration unit 133, and a condensation unit 134. The details of each part are as follows.

The evaporation unit 131 is formed in the form of a sealed container that accommodates water therein. In general, water is known to boil at 100 ° C under atmospheric pressure, but it is well known that the lower the pressure, the lower the boiling point of water. When the pressure is 6 ~ 7mmHg, the boiling point of water is about 5 ℃. Using this point, when the inside of the evaporator 131 is formed at a low pressure (for example, 5 mmHg) equivalent to a vacuum, the water contained in the evaporator 131 easily evaporates even at room temperature to turn into water vapor. do. That is, the evaporator 131 serves to generate water vapor by evaporating water by forming the inside at a low pressure equivalent to vacuum.

In the evaporation unit 131, an evaporation unit heat exchanger 131h formed in the form of a heat exchanger in which a refrigerant circulates is provided. The evaporation heat for evaporating water in the evaporation part 131 is provided from the refrigerant accommodated in the evaporation part heat exchanger 131h, and thus the refrigerant deprived of the evaporation heat is cooled accordingly. The evaporation part heat exchanger (131h) is connected to the cooling part heat exchanger (130h) to circulate the refrigerant. As described above, the refrigerant is cooled in the evaporation part heat exchanger (131h) and is relatively cooler than the outside. When is flowed to the cooling sub-heat exchanger (130h), the cooling sub-heat exchanger (130h) heats the refrigerant with the outside to perform external cooling. As such, the refrigerant absorbs heat from the outside while passing through the cooling part heat exchanger (130h), and the temperature rises, and the refrigerant whose temperature has risen flows back to the evaporation part heat exchanger (131h) to evaporate water in the evaporation part (131). The refrigerant is circulated while providing heat for evaporation.

The absorber 132 is formed in the form of a sealed container that receives the absorbent liquid therein, and serves to absorb water vapor generated from the evaporator 131 and absorb it into the absorbent liquid. If the evaporation continues in the evaporation unit 131, the partial pressure of water vapor gradually increases, and accordingly, an appropriate cooling capacity cannot be obtained as the boiling point rises. At this time, the absorbent liquid accommodated in the absorber 132 has a property of absorbing water vapor very well, so that the water vapor generated in the evaporator 131 flows into the absorber 132 and is absorbed into the absorbent liquid, thereby absorbing the vaporizer. The pressure and temperature in 131 can be properly maintained. At this time, the absorbent liquid accommodated in the absorber 132 may be a well-known LiBr aqueous solution having excellent water absorption performance.

The regeneration unit 133 is also formed in the form of a closed container for receiving the absorbent liquid therein, and receives the absorbent liquid from the absorbent unit 132 through the absorber passage 132p. Even if the absorbent liquid absorbs water vapor in the absorber 132 as described above, when water vapor is absorbed up to a limit of a capacity that the absorbent liquid can absorb over time, water vapor absorption can no longer occur. At this time, after the absorption liquid absorbing water vapor from the absorption unit 132 is flowed to the regeneration unit 133, heat is applied from the regeneration unit 133 to vaporize and separate the water vapor from the absorption liquid to regenerate the absorption liquid. By supplying to the absorber 132, the absorbent liquid in the absorber 132 can maintain sufficient absorption performance.

In the regeneration unit 133, a regeneration unit heat exchanger 133h is formed in the form of a heat exchanger that absorbs heat generated from the engine 150 and circulates inside the coolant that has become hot. As described above, the regeneration unit 133 applies heat to regenerate the absorbent liquid. Of course, this heat may be applied by a separate heater or the like, but in the present invention, the waste heat generated from the engine 150 is regenerated. By using for heating in), the overall efficiency of the system can be further improved. In addition, since there is no need to provide a separate heater or the like, the cost for configuring the equipment can also be reduced.

The condensation unit 134 is formed in the form of a sealed container that accommodates water vapor therein, receives the water vapor generated from the regeneration unit 133, cools it, condenses it, generates water, and supplies it to the evaporation unit 131. Plays a role. That is, in summary, the water accommodated in the evaporation unit 131 evaporates into water vapor, flows into the absorption unit 132 in a water vapor state, is absorbed as an absorption liquid, and flows into the regeneration unit 133 in a state absorbed by the absorption liquid. It is separated into water vapor by heating again, flows to the condensation unit 134 in a water vapor state, condenses, turns into water, and is supplied again to the evaporation unit 131, thereby circulating the entire cooling unit 130.

In the condensing unit 134, a condensing unit heat exchanger 134h formed in the form of a heat exchanger through which the refrigerant circulates is provided. The condensation unit heat exchanger 134h serves to absorb condensation heat for condensing water vapor in the condensation unit 134, whereby the refrigerant in the condensation unit heat exchanger 134h is heated. At this time, the condensation unit heat exchanger 134 is connected to the cooling tower 135 to circulate the refrigerant. In the cooling tower 135, the condensation unit heat exchanger 134h is cooled by the condensation unit heat exchanger 134h to externally cool the refrigerant having a relatively high temperature. And heat exchange with to cool the refrigerant.

FIG. 5 illustrates the emphasis only on the CO ₂ part of the quadruple power generation system of the present invention, and the CO ₂ part 140 distributes exhaust gas discharged from the engine 150 to purify harmful substances and cool the air. Cooling the exhaust gas by passing through the unit 130 removes moisture contained in the exhaust gas, and serves to supply CO ₂ as a form included in the exhaust gas.

More specifically, the CO ₂ unit 140 may include a CO ₂ sub-heat exchanger 140h formed in the form of a heat exchanger through which the exhaust gas discharged from the engine 150 flows. The CO ₂ sub-heat exchanger (140h) is provided in the evaporation unit 131, thus providing evaporation heat for evaporating water in the evaporation unit 131, thereby discharging the CO ₂ sub-heat exchanger (140h) The gas can be cooled.

The principle of removing moisture from the exhaust gas in the CO ₂ part 140 will be described in more detail as follows. As is well known, as the temperature increases, the amount of saturated water vapor increases. For example, when the air temperature is 45 ° C., the saturated water vapor amount is 65 g / m ³ , and when the air temperature is 10 ° C., the saturated water vapor amount is 9.5 g / m. It becomes ³ . As described above, the exhaust gas discharged from the engine 150 contains an excessive amount of moisture to be supplied to the greenhouse. For example, if the relative humidity of the exhaust gas is 100%, 65 g of water vapor will be contained in 1 m ³ of exhaust gas at 45 ° C. However, if the exhaust gas is cooled to 10 ° C by passing through the cooling unit 130 as described above, due to a decrease in the amount of saturated water vapor due to a decrease in temperature, the exhaust gas still maintains 100% of relative humidity. Since only 9.5 g of water vapor is contained in 1 m ³ of the exhaust gas, the remaining 55.5 g of moisture can be condensed into water and removed from the exhaust gas.

The CO ₂ part 140 includes a drain part 141 that condenses and discharges water removed from the exhaust gas to the outside as the saturated water vapor amount of the exhaust gas is reduced by cooling as shown in FIG. 5. By doing so, moisture can be effectively removed from the exhaust gas. In addition, the CO ₂ part 140 may further include a moisture absorbing part 145 formed in a container shape containing an absorbent, and the moisture absorbing part 145 is provided at a rear end of the drain part 141 to cool the air. As it passes through the portion 130, it serves to absorb and remove the moisture that is still present in the exhaust gas from which the moisture has been removed to some extent. By doing this, the CO ₂ part 140 can very effectively remove moisture in the exhaust gas, and as a result, it is sufficiently dry and can supply the exhaust gas having a high CO ₂ content in the greenhouse.

The ultimate goal of the CO ₂ unit 140, as described above, is to supply the CO ₂ to the greenhouse for growing crops, where CO ₂ is supplied as the type included in the exhaust gas. At this time, if a harmful substance is mixed with the exhaust gas, it may adversely affect crop growth. Therefore, the CO ₂ part 140 is disposed on a distribution path of the exhaust gas discharged from the engine 150 to remove the harmful substance. Equipped with at least one oxidation catalyst (142a) (142b) for removing harmful substances, at least one oxygen sensor (143a) (143b) provided in front of the oxidation catalyst (142a) (142b), the oxidation catalyst (142a) It is preferable to further include a configuration for removing harmful substances such as the NOx sensor 144 provided at the rear of the (142b).

Method of operating a quadruple power generation system having a water removal structure of the present invention

As described above, the quadruple power generation system of the present invention produces four types of electricity, heating, cooling, and CO ₂ by operating the engine 150, and improves system efficiency by using an absorbing cooler for cooling in the process. In addition, it is possible to effectively remove the moisture contained in the exhaust gas by cooling the exhaust gas using an absorption type cooler, thereby ultimately supplying effectively removed CO ₂ to remove unnecessary causes of humidity increase in the greenhouse. It has been described to some extent while explaining the configuration of each part, but the operation method of the quadruple power generation system 100 will be described once again stepwise as follows.

The operation method of the quadruple power generation system of the present invention largely includes an engine operation step, a power generation performance step, a heating performance step, a cooling performance step, and a CO ₂ supply step.

In the engine operation step, an operation is performed by supplying fuel to the engine 150 in the form of an internal combustion engine and through which coolant flows. Accordingly, the cooling water circulating around the engine 150 is heated to a high temperature, and the following various steps can be performed by this energy.

In the power generation step, the power generation unit 110 is rotated by the engine 150 to generate power. More specifically, as described above, the power generation step generates a high temperature and high pressure steam by the high heat generated by the engine 150, and generates electricity by rotating the steam turbine connected to the generator with this steam. It can be made.

In the heating performance step, heating is performed by using the cooling water that has absorbed heat generated by the engine 150 and has become hot by the heating unit 120. In this case, the heating operation may be indoor heating using the heating unit heat exchanger 120h, or supplying hot water using the hot water supply unit 121.

In the cooling step, cooling is performed by using the cooling water that has absorbed heat generated from the engine 150 and has been heated by the cooling unit 130 in the form of an absorption type refrigerator.

In the CO ₂ supply step, the exhaust gas discharged from the engine 150 is circulated by the CO ₂ unit 140 to purify harmful substances, and the exhaust gas is cooled by passing through the cooling unit 130. By removing the moisture contained in, CO ₂ is supplied as a form included in the exhaust gas.

To describe the cooling performance step in more detail, the cooling performance step may include an evaporation step, a cooling step, an absorption step, a regeneration step, and a condensation step.

In the evaporation step, the inside of the evaporation unit 131 is formed at a low pressure equivalent to a vacuum to evaporate water to generate water vapor, and circulates inside the evaporation unit heat exchanger 131h provided in the evaporation unit 131. The refrigerant is cooled by providing evaporation heat for evaporating water in the evaporation unit 131.

In the cooling step, the cooling sub-heat exchanger 130h, which is connected to the evaporation sub-heat exchanger 131h and the refrigerant circulates therein, is cooled in the evaporation sub-heat exchanger 131h to cool the refrigerant having a relatively low temperature than the outside. The outside is cooled by heat exchange with the outside.

In the absorption step, water vapor generated from the evaporation unit 131 flows into the absorption unit 132 for receiving the absorption liquid therein and is absorbed into the absorption liquid.

In the regeneration step, the regeneration unit 133 receives the absorption liquid from the absorption unit 132 through the absorption unit passage 132p, and absorbs heat generated from the engine 150 to become high temperature cooling water. The heat supplied by the regeneration unit heat exchanger (133h) circulating therein is applied, so that water vapor evaporates and separates from the absorption liquid, thereby regenerating the absorption liquid.

In the condensation step, the condensation unit 134 receives the water vapor generated from the regeneration unit 133, cools it, condenses it, generates water, and supplies water to the evaporation unit 131. 131) to allow water to circulate through the cooling unit 130.

To explain the CO ₂ supplying step in more detail, the CO ₂ supplying step may include a cooling step and a dehydration step, and may further include a purification step and a moisture absorption step.

In the cooling step, the exhaust gas is cooled by passing through the cooling unit 130. More specifically, the exhaust gas is preferably made to be cooled by providing evaporation heat for evaporating water in the evaporation part 131 while passing through the CO ₂ sub-heat exchanger 140h provided in the evaporation part 131. .

In the dehydration step, as the saturated water vapor amount of the exhaust gas is reduced by cooling, moisture in the exhaust gas is condensed and removed from the exhaust gas as water. The water thus removed can be completely removed by being discharged from the passage through which the exhaust gas flows through the drain portion 141 as described above.

In addition, the CO ₂ supply step, after the dehydration step, by further including a moisture absorption step in which the exhaust gas passes through the hygroscopic agent and the moisture remaining in the exhaust gas is further removed, it is possible to obtain a drier CO ₂ .

In addition, the CO ₂ supplying step further comprises, before the cooling step, a purification step in which the exhaust gas discharged from the engine 150 passes through at least one oxidation catalyst 142a and 142b to purify harmful substances, It is possible to remove harmful substances that adversely affect crop growth in the greenhouse.

The present invention is not limited to the above-described embodiments, and of course, the scope of application is diverse, and anyone who has ordinary knowledge in the field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, various modifications are possible.

100: quadruple power generation system
110: power generation department
120: heating unit 120h: heating unit heat exchanger
121: hot water supply unit
130: cooling section 130h: cooling section heat exchanger
131: evaporation section 131h: evaporation section heat exchanger
132: absorber 132p: absorber flow path
133: regeneration section 133h: regeneration section heat exchanger
134: condensation unit 134: condensation unit heat exchanger
135: cooling tower
140: CO ₂ part 140h: CO ₂ secondary heat exchanger
141: drain portion
142a, 142b: oxidation catalyst 143a, 143b: oxygen sensor
144: NOx sensor 145: water absorption unit

Claims (14)

An engine made of an internal combustion engine and in which coolant flows around;
A power generation unit rotated by the engine to perform power generation;
A heating unit that absorbs heat generated from the engine and performs heating using cooling water that has become hot;
An air-conditioning unit made of an absorbing type refrigerator and absorbing heat generated from the engine to perform cooling using cooling water that has become hot;
A CO ₂ part for supplying CO2 as a form contained in the exhaust gas by discharging the exhaust gas discharged from the engine to purify harmful substances and cooling the exhaust gas by passing through the cooling part;
Including, the cooling unit,
It is formed in the form of a closed container that accommodates water inside, and the inside is formed at a low pressure equivalent to a vacuum, thereby evaporating water to generate water vapor,
It is formed in the form of a heat exchanger in which the refrigerant circulates therein, and is provided in the evaporator to provide evaporative heat for evaporating water in the evaporator to cool the refrigerant,
It is formed in the form of a heat exchanger in which a refrigerant circulates therein in connection with the evaporation part heat exchanger. group,
It is formed in the form of a closed container that receives the absorbent liquid therein, and the absorber absorbs water generated from the evaporator and absorbs it into the absorbent liquid.
It is formed in the form of a closed container that accommodates the absorbent liquid therein, and receives the absorbent liquid from the absorbent portion through the absorber flow path, and regenerates the absorbent liquid by supplying heat to evaporate and separate the absorbent liquid, thereby regenerating the absorbent liquid and supplying it to the absorbent portion. ,
It is formed in the form of a heat exchanger that absorbs heat generated from the engine and becomes high temperature to circulate coolant therein, and a regeneration part heat exchanger that supplies heat to the regeneration part,
It is formed in the form of a sealed container that accommodates water vapor therein, and condenses by receiving water from the regeneration unit, cooling, condensing to generate water, and supplying it to the evaporation unit to circulate.
It is formed in the form of a heat exchanger in which the refrigerant circulates therein, and is provided in the condensing unit to condense heat exchanger for heating the refrigerant by absorbing condensation heat for condensing water vapor in the condensing unit.
A cooling tower connected to the condensation unit heat exchanger is formed in the form of a heat exchanger in which the refrigerant circulates therein, and the cooling tower cooled by the condensation unit heat exchanger exchanges heat with a relatively high temperature refrigerant to the outside to cool the refrigerant.
Quadruple power generation system comprising a.
delete According to claim 1, wherein the CO ₂ Part,
And the exhaust gas discharged from the engine formed of a heat exchanger type being distributed in the interior, is provided in the evaporator heat exchanger to cool the CO ₂ off-gas by providing the evaporation heat for evaporating the water in the evaporation unit group
Quadruple power generation system comprising a.
According to claim 1, wherein the CO ₂ Part,
Drain unit that condenses and discharges the water removed from the exhaust gas to the outside as the saturated water vapor amount of the exhaust gas decreases by cooling.
Quadruple power generation system comprising a.
The method of claim 4, wherein the CO ₂ part,
It is formed in the form of a container that accommodates a hygroscopic agent, and is provided at the rear end of the drain portion to absorb and remove moisture remaining in the exhaust gas, thereby absorbing and removing moisture.
Quadruple power generation system, characterized in that it further comprises.
The method of claim 4, wherein the CO ₂ part,
At least one oxidation catalyst that is provided on the flow path of the exhaust gas discharged from the engine to remove harmful substances,
At least one oxygen sensor provided in front of the oxidation catalyst,
NOx sensor provided at the rear of the oxidation catalyst
Quadruple power generation system, characterized in that it further comprises.
According to claim 1, wherein the heating unit,
Heating that absorbs heat generated from the engine and forms a heat exchanger in which cooling water that has become hot circulates inside, and heats the cooling water that is heated in the engine and is relatively hot, and heats the outside to perform external heating. Secondary heat exchanger
Quadruple power generation system comprising a.
The method of claim 7, wherein the heating unit,
A hot water supply unit that absorbs heat generated from the engine and produces hot water using cooling water that has become hot.
Quadruple power generation system, characterized in that it further comprises.
An engine operation step of an internal combustion engine and operated by supplying fuel to an engine in which coolant is distributed around;
A power generation step in which power generation is performed by rotating the power generation unit by the engine;
A heating performance step in which heating is performed by using cooling water that has been heated to absorb heat generated from the engine and has become hot;
A cooling performance step in which cooling is performed by using cooling water which has absorbed heat generated from the engine and has become high temperature by a cooling unit made of an absorption type refrigerator;
By the CO ₂ part, the exhaust gas discharged from the engine is circulated to purify harmful substances, and through the cooling part, the exhaust gas is cooled to remove moisture contained in the exhaust gas, and CO ₂ is included in the exhaust gas. CO ₂ supply step is supplied;
Including, and the cooling step,
The inside of the evaporator is formed at a low pressure equivalent to a vacuum to evaporate water to generate water vapor, and the refrigerant circulating inside the evaporator heat exchanger provided in the evaporator provides cooling by providing evaporation heat for evaporating the water in the evaporator Evaporation step;
A cooling step connected to the evaporation part heat exchanger and a cooling part heat exchanger in which a refrigerant circulates therein, is cooled in the evaporation part heat exchanger and heats a refrigerant having a relatively lower temperature than the outside to perform external cooling;
An absorption step in which water vapor generated from the evaporation portion flows into the absorption portion that receives the absorption liquid therein and is absorbed into the absorption liquid;
The regeneration unit receives the absorption liquid from the absorption unit through the absorption unit flow path, and the heat supplied by the regeneration unit heat exchanger that absorbs heat generated from the engine and circulates in the coolant that has become high temperature is applied, so that water vapor evaporates from the absorption liquid. Regeneration step in which the absorbent liquid is regenerated by being separated;
A condensation step in which the condensation unit receives water vapor generated from the regeneration unit, cools it, condenses it, generates water, and supplies it to the evaporation unit to circulate it;
Method of operating a quadruple power generation system comprising a.
delete The method of claim 9, wherein the CO ₂ supply step,
Cooling step in which the exhaust gas is cooled through the cooling unit 130,
Dehydration step in which the moisture in the exhaust gas is condensed and removed from the exhaust gas in the form of water as the saturated water vapor amount of the exhaust gas is reduced by cooling.
Method of operating a quadruple power generation system comprising a.
The method of claim 11, wherein the cooling step,
Quadruple power generation system characterized in that the exhaust gas is cooled by providing evaporative heat for evaporating water in the evaporator 131 while passing through the CO ₂ sub-heat exchanger 140h provided in the evaporator 131 How to operate.
The method of claim 11, wherein the CO ₂ supply step,
After the dehydration step,
Moisture absorption step in which the exhaust gas passes through the hygroscopic agent and the moisture remaining in the exhaust gas is further removed.
A method of operating a quadruple power generation system, further comprising a.
The method of claim 11, wherein the CO ₂ supply step,
Before the cooling step,
A purification step in which the exhaust gas discharged from the engine 150 passes through at least one oxidation catalyst 142a and 142b to purify harmful substances.
A method of operating a quadruple power generation system, further comprising a.

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