JP2007010310A - Gas turbine-incorporated absorption refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide arts to improve refrigerating or air conditioning performance by incorporating a gas turbine into an absorption refrigerator. <P>SOLUTION: A gas turbine is incorporated into a double effect absorption type refrigerator, and exhaust gas is guided to a high temperature reproducer without a drop of gas temperature. Topping through a heat exchanger for gas turbine combustion gas is effected by absorption liquid (a weak solution). An absorption type refrigerator into which a gas turbine is incorporated is sound-proofed by a casing to surround the two devices. A generated power is supplied by a frequency necessary for operation of an auxiliary machine and an electric motor for a juxtaposition steam compression type refrigerator. The load control of a refrigeration facility is effected by the capacity control of the gas turbine. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for improving refrigeration or air conditioning performance by combining an absorption refrigeration machine used for air conditioning applications such as district cooling and heating and commercial buildings with a gas turbine.

  Absorption refrigerators used for air conditioning applications such as district cooling and heating and commercial buildings can take cold water directly from the thermal energy generated by fuel combustion, and are widely used as energy-saving and power-saving air conditioning equipment. ing.

  Recently, cogeneration, which generates electricity using a reciprocal local engine (reciprocating engine), a gas turbine, etc., and uses the waste heat to drive an absorption chiller, has begun to spread in large-scale facilities.

  Micro gas turbines with an output of less than 300 kW have also started to be marketed, and the waste heat is recovered for the purpose of supplying hot water for hot water supply, supplying cold / hot water for air conditioning in a single-effect absorption refrigerator, and the like.

However, the conventional absorption refrigerator and the cogeneration system using the same have the following problems to be solved.
(1) Absorption refrigeration machines include many auxiliary machines that consume electric power, such as solution pumps, refrigerant pumps, cold water pumps, cooling water pumps, cooling tower fans, and blowers for combustors. For this reason, auxiliary power including control power may reach 30% of the total air conditioning energy, and power saving may not be possible.
(2) In a conventional cogeneration system, components such as a gas engine, a gas turbine, a boiler, and an absorption chiller / heater are supplied as a single item, and are combined into a system by connecting them with ducts, piping, wiring, and the like. For this reason, the installation area is large, and the site construction cost is high. Further, since each component device is a single finished product, there is a waste of duplication in soundproofing measures, maintenance space, and the like.
(3) Electric power generated by cogeneration is usually used in a grid connection with commercial power, and the equipment cost for the grid linkage is high.
(4) In a cogeneration system using a micro gas turbine, a regenerator is required to improve power generation efficiency. However, the exhaust gas after leaving the regenerator has a low temperature of about 250 ° C., and it is difficult to drive the double effect absorption refrigerator.

  Accordingly, an object of the present invention is to provide a technique for solving the above problems in a cogeneration system using an absorption refrigerator. More specifically, the present invention provides a technique for solving the above-described problems particularly when the generated electricity and heat are used for refrigeration, air conditioning, etc. by using an absorption refrigerator and a gas turbine in combination. Is the main purpose.

[Configuration 1]
A gas turbine built-in absorption chiller according to the present invention is an absorption chiller using an absorption refrigeration cycle having at least a double utility number, as described in claim 1, wherein the absorption chiller has the highest temperature. In the heating gas introduction chamber of the regenerator (hereinafter referred to as “high temperature regenerator”) that regenerates the absorbing liquid, the outlet of the expansion turbine constituting the gas turbine or the outlet of the regenerator is connected without passing through the flue. Directly coupled to use gas turbine combustion exhaust gas for heating and regeneration of absorption liquid, and
(1) Absorption refrigerator casing,
(2) Gas introduction chamber for heating of the high-temperature regenerator of the absorption refrigerator,
(3) a gas turbine exposed from the heating gas introduction chamber and a soundproof box surrounding the generator, and (4) at least one selected from an absorption refrigerator, a gas turbine and a casing surrounding the entire generator, It is characterized by being used as a silencer facility.

  In this configuration, for example, a small micro gas turbine is suitable as the gas turbine. A generator driven by the power is directly connected to the gas turbine, and heat and electricity generated from the gas turbine and the generator can be used as all or part of heat and power consumed by the absorption chiller. .

[Function and effect]
In this configuration, the outlet of the expansion turbine constituting the gas turbine or the outlet of the regenerator is directly coupled to the heating gas introduction chamber of the high-temperature regenerator of the absorption refrigeration machine without passing through the flue. As a result, when the gas turbine combustion exhaust gas is used for heating and regeneration of the absorption liquid (dilute solution), there is no flue, so there is no heat loss, and there is no flue, so the system can be constructed economically.

  By the way, in particular, in an absorption refrigerator having a double effect or higher, regeneration of the absorbing liquid (dilute solution) requires 150 ° C. or higher at the liquid temperature. In a simple cycle gas turbine that does not have a regenerator, there is no problem because the exhaust gas temperature is 600 to 700 ° C., but in order to use the low temperature exhaust gas of the recycle cycle gas turbine (about 250 ° C. at the regenerator outlet), The thermal area needs to be expanded.

  However, if this configuration is adopted, the exhaust gas temperature to be used can be kept high, so even if the increase in the heat transfer area is reduced, the double-effect absorption chiller is driven by the regenerative cycle gas turbine exhaust gas. It is possible.

  And a gas turbine exposed from the casing of the absorption refrigerator, the heating gas introduction chamber of the high-temperature regenerator of the absorption refrigerator (the portion corresponding to the combustion chamber of the direct-fire absorption refrigerator), and the heating gas introduction chamber; A soundproof box surrounding the generator can be used as a silencer for the gas turbine. Further, an enclosure (soundproof casing) that surrounds the absorption chiller, gas turbine, and generator may be used. In this case, it is more economical than the case where soundproofing equipment is individually provided for each component device. It is.

[Configuration 2]
The gas turbine built-in absorption chiller of the present invention is an absorption chiller using an absorption refrigeration cycle having at least a double utility number, and heating and regeneration of an absorption liquid (dilute solution) of the absorption chiller, following;
(1) First-stage heat exchange with the combustion exhaust gas at the outlet of the expansion turbine or the outlet of the regenerator constituting the gas turbine,
(2) The second stage heat exchange with the combustion gas at the combustor outlet (or expansion turbine inlet) and (3) the absorption liquid that has become a gas-liquid mixed phase flow by heating is converted into water vapor using a gas-liquid separator. It is characterized by carrying out by a three-stage series operation consisting of a stage of separating into an absorbing liquid (medium concentration liquid).

  Also in this configuration, the gas turbine is directly connected to a generator driven by its power, and the heat and electricity generated from the gas turbine and the generator are all or part of the heat and power consumed by the absorption chiller. Can be used.

[Function and effect]
With this configuration, the second stage heat exchange with the high-temperature combustion gas at the combustor outlet (or expansion turbine inlet) is added, so the high temperature required for an absorption refrigeration machine with a utility number of two or more. The regeneration temperature (150 ° C.) can be secured with a margin, and the heat transfer area of the entire heat exchanger can be reduced.

  By the way, in a small gas turbine that is small and does not have a blade cooling structure, about 900 ° C. is the maximum allowable temperature at the inlet of the expansion turbine (hereinafter sometimes referred to as “TIT”) due to the temperature restriction of the metal material. . Therefore, the high temperature combustion gas is diluted and cooled with excess air to a temperature of about 900 ° C.

  Here, the pressure energy of the excess air is given by the compressor driven by the shaft output of the gas turbine, and is recovered by the expansion turbine, but only the value obtained by multiplying the efficiency of the compressor by the efficiency of the expansion turbine. It cannot be recovered. Since the efficiency of both the compressor and the expansion turbine in a small gas turbine is about 80%, even if the compression energy is recovered via heat, about 30% of the power for compressing excess air is wasted. It corresponds to being. Since the equivalent ratio of the gas turbine is about 0.3, it means that about three times the theoretical air amount is compressed, and if this can be reduced, the take-out shaft output can be increased.

  In the configuration of the present invention, heat exchange between the dilute solution and the combustion gas is performed at the combustor outlet (or the expansion turbine inlet), so that the temperature of the combustion gas is lowered and the use of excessive cooling air can be reduced. Therefore, it is possible to secure the temperature necessary for the refrigerant regeneration of the multi-effect absorption refrigerator, and at the same time, it is possible to improve the output and efficiency of the gas turbine.

[Configuration 3]
The gas turbine built-in absorption chiller according to the present invention absorbs electric power generated by a gas turbine-driven generator in the gas turbine built-in absorption chiller according to Configuration 1 or 2, as described in claim 2. It is used for at least one application selected from the power and control power of a solution pump, a refrigerant pump, a cooling water pump, a cooling tower fan, an auxiliary fuel blower, and a gas turbine fuel compressor attached to the type refrigerator. .

[Function and effect]
With this configuration, it is possible to reduce complicated and expensive power control facilities such as system linkage with commercial power, and in some cases, it is possible to operate the absorption chiller separately from the commercial power system. That is, it can contribute to power saving of commercial power and can be operated even during a power failure.

  In addition, when the gas turbine drives a high-speed generator, the generated high-frequency power is converted into direct current, and the alternating current is not converted into a commercial frequency. These devices can be output-controlled by rotational speed control by supplying them to a DC motor to be driven or by converting them to a required frequency and supplying them to an AC synchronous motor. Thereby, not only can loss due to frequency conversion be reduced, but also energy saving can be achieved by controlling the auxiliary machine.

[Configuration 4]
The gas turbine built-in absorption refrigerator according to the present invention is the gas turbine built-in absorption refrigerator according to Configuration 1 or 2, wherein the vapor compression refrigerator is used as a part of the refrigeration equipment component. The electric power generated by the gas turbine driven generator is used as all or part of the electric power of the electric motor for driving the vapor compression refrigerator.

[Function and effect]
According to this configuration, when the power generation output of the generator driven by the gas turbine exceeds the power consumption of the auxiliary equipment of the absorption chiller, the attached steam compression chiller is used with the surplus power. It can be operated and refrigerated efficiently. According to this configuration, the surplus power is energy-saving (COP = 5) as compared with the case where the surplus power is used for the purpose of heating the high-temperature regenerator of the absorption refrigerator with a heater (COP = 1.1).

  Further, according to this configuration, as compared with the conventional configuration in which a vapor compression refrigerator is directly driven by a gas turbine-driven generator and the gas turbine exhaust gas is guided to an absorption refrigerator through a flue, It has the advantage that components can be connected with cheaper electric wires than insulated flues with high construction costs. It is also possible to supply power to the vapor compression refrigerator in preference to the auxiliary machine.

[Configuration 5]
According to the control method of the present invention, as described in claim 4, in the absorption refrigeration refrigerator with built-in gas turbine according to configuration 4, the temperature of the chilled water to be delivered is detected and fed back to detect the temperature of the generator driven by the gas turbine. By controlling the power output and gas turbine exhaust gas heat output simultaneously, the combined refrigeration output of the vapor compression refrigerator driven by the output power of the gas turbine driven generator and the absorption refrigerator driven by the gas turbine exhaust gas is controlled. It is the control method characterized by doing.

[Function and effect]
This control method is particularly effective in a range in which the three types of component devices of the gas turbine, the absorption chiller, and the vapor compression chiller operate in proportion (linearly) to the energy input by the fuel. Normally, when the load is reduced, the shaft output of the gas turbine, that is, the output of the vapor compression refrigerator is further reduced. However, the output loss of the vapor compression refrigerator can be offset to some extent by increasing the waste heat and increasing the output of the absorption refrigerator.

  In parts that deviate from the linear control range, the refrigerating machine of the absorption chiller can be replenished with auxiliary fuel, or power can be supplementarily supplied to the compression chiller from an external power source (by system linkage). Is possible.

According to the gas turbine built-in absorption chiller of the present invention and its control method, the following excellent effects are exhibited as compared with a cogeneration system in which a conventional gas turbine and absorption chiller are simply combined. Is done.
(1) There is almost no decrease in the temperature of the gas turbine exhaust gas, and when the absorption refrigeration machine has a double effect, the required temperature of the high temperature regenerator can be easily secured. Therefore, the gas turbine with a regenerator is particularly effective when the exhaust gas temperature is low.
(2) The construction of the flue and its heat insulation is unnecessary and economical.
(3) The high-temperature regenerator heating gas introduction chamber can be used as a soundproof partition wall for gas turbine noise.
(4) The external casing of the absorption refrigerator can be used as a soundproof partition in addition to the above (3).
(5) By covering the entire absorption refrigerator, gas turbine and generator with a common exterior, an enclosure having a soundproofing purpose can be constructed at low cost.
(6) The power generated by the gas turbine can be used with good controllability by converting the loss of frequency conversion to an optimum frequency with little loss. In particular, it is effective when the generated power is used for its own auxiliary equipment or a vapor compression refrigerator equipped therewith.
(7) By detecting the temperature of cold water supplied as a refrigeration facility, it is possible to control the refrigeration load capacity of a gas turbine built-in absorption chiller or a gas turbine built-in absorption chiller and a vapor compression chiller.

  Hereinafter, a gas turbine built-in absorption refrigerator according to the present invention and a control method thereof will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic plan view showing an embodiment of an absorption refrigerator incorporating a gas turbine of the present invention. The gas turbine 100 is directly coupled to the heating gas introduction chamber (“21” in FIG. 3) of the high-temperature regenerator (“20” in FIG. 3) of the absorption refrigerator 200 without passing through the flue. . The portion of the gas turbine 100 exposed from the heating gas introduction chamber (“21” in FIG. 3) and the generator 5 are insulated by a dedicated soundproof box 101.

  According to such a configuration, it is possible to achieve the exhaust gas temperature required for driving the double-effect absorption refrigerator and the noise reduction of the gas turbine at low cost.

  In FIG. 2, the configuration of the absorption chiller 200, the gas turbine 100, and the generator 5 is the same as that in FIG. 1. However, in FIG. 2, the sound insulation of the gas turbine is performed by the enclosure 102 (soundproof casing) that surrounds all of the absorption chiller 200, the gas turbine 100, and the generator 5 at the same time.

  According to this configuration, the soundproofing of the absorption refrigerator 200, the gas turbine 100, and the generator 5 can be achieved simultaneously by the enclosure 102. Further, by designing the structure of the enclosure 102, it is possible to configure the gas turbine intake air to be easily processed and maintained.

  FIG. 3 is a perspective view illustrating one embodiment of the gas turbine built-in absorption chiller without the gas turbine soundproof box (“101” in FIG. 1) and the gas turbine built-in absorption chiller enclosure (“102” in FIG. 2). FIG.

  The structure which attached the gas turbine 100 which consists of the compressor 1, the expansion turbine 2, the combustor 3, and the regenerator 4 to the gas introduction chamber 21 for the heating of the high temperature regenerator 20 of the double effect absorption refrigerating machine 200 is represented.

  The heating gas introduction chamber 21 of the high-temperature regenerator 20 is a portion corresponding to the combustion chamber of the high-temperature regenerator in the direct-fired double-effect absorption refrigerator, and the direct-fired double-effect absorption refrigerator is diverted to the present invention. In such a case, the burner of the refrigerator may be removed, and a part of the burner attachment port may be modified to a structure that can be attached to the gas turbine. In addition, since the exhaust gas temperature of the gas turbine is lower than the temperature of the direct combustion gas, in order to make the absorption refrigeration machine the same capacity as when direct combustion, heat transfer fins into the combustion chamber (heating gas introduction chamber) It is necessary to increase the heat transfer area by installing or adding a heat exchanger (heat transfer tube) 22 or the like.

  The gas turbine is accompanied by a generator 5, a fuel gas nozzle 6, an air duct 7 and the like that are driven by the output. The configuration in which the gas turbine is directly connected to the heating gas introduction chamber is possible only when the gas turbine is smaller and lighter than a reciprocating engine with the same output, and the waste heat is only exhaust gas.

  FIG. 4 is a flow diagram for explaining an embodiment of an absorption chiller incorporating a gas turbine. FIG. 4 is broadly divided into a gas turbine on the left side, a high-temperature regenerator functional component on the center, and an absorption refrigeration machine on the right. Since the configuration of the gas turbine part is the same as that described above, the other parts will be described.

  The main part of the absorption refrigerator on the right side is composed of a low-temperature regenerator 23, a condenser 24, an absorber 25, and an evaporator 26, and includes a solution pump 27, a refrigerant pump 28, heat exchangers 10 and 13, and the like. .

  The feature of the configuration of the present invention is that the solution (dilute or dilute solution) exiting the heat exchanger 10 is heated by the heat exchanger (first stage) 8 with gas turbine exhaust gas, and further the gas turbine combustor combustion gas Before entering the expansion turbine at, the heat exchanger (second stage) 11 is heated, and the gas-liquid mixed phase flow is heated and gas-liquid separated by the gas-liquid separator 12, and the generated water vapor is removed. In addition to being sent to the low temperature regenerator 23, a medium concentration solution (medium solution or medium solution) is sent to the low temperature regenerator 23 via the heat exchanger 10.

  With such a configuration, the dilute solution is sufficiently heated to a temperature necessary for high-temperature regeneration, and the combustion gas generated in the combustor is cooled to a predetermined gas turbine inlet temperature (TIT: about 900 ° C.). At this time, when there is no heat exchanger (second stage) 11, the amount of air required to dilute and cool the combustion gas to TIT can be reduced.

  It is also possible to control the output of the absorption chiller in an increasing direction by introducing auxiliary fuel into the heat exchanger (first stage) 8. At this time, a part of the combustion air of the auxiliary fuel can be used as gas turbine combustion exhaust gas. Thus, if the gas turbine exhaust gas is used as combustion air, it can be burned with a low excess air ratio and is economical, and generation of nitrogen oxides (NOx) can be reduced.

  FIG. 5 shows a configuration similar to that of FIG. 4, except that the diluted solution that has passed through the heat exchanger (second stage) 11 can be replenished with auxiliary fuel. It is effective in energy saving because it is repulsed at a higher temperature. As in the configuration of FIG. 4, the gas turbine combustion exhaust gas can be used as a part of the combustion air.

  FIG. 6 has the same configuration as that of FIG. 5, except that the heat exchanger 14 (shown in FIG. 5) has a gas-liquid separation function to form a steam generator 15. The steam generator 15 can substantially follow the configuration of the high-temperature regenerator can body of the double-effect absorption refrigerator. However, in that case, it is necessary to appropriately increase and adjust the heat transfer area.

  If the gas turbine output is controlled in proportion to the refrigeration load, the power generation output generated by the gas turbine changes in proportion to the refrigeration load in a certain load range, and at the same time, an absorption type driven by the waste heat. The output of the refrigerator also changes proportionally. In addition, the power consumption of the absorption chiller and the auxiliaries constituting the refrigeration equipment using the same basically changes in proportion to the refrigeration load. Therefore, in the gas turbine built-in absorption refrigerator, supplying the electric power generated by the gas turbine to its own auxiliary equipment and consuming it can reasonably complete the refrigeration equipment.

  FIG. 7 shows the absorption refrigerator 200 and its auxiliary devices. The main auxiliary equipment includes solution pump 27, refrigerant pump 28, cold water pump 29, cooling water pump 32, cooling tower fan 31, auxiliary combustor blower 9, gas turbine fuel compressor power (not shown), control panel. 400 power and so on.

  When the gas turbine output power and the auxiliary device power consumption are not balanced, the following measures may be taken.

  When the generated power becomes excessive, an electric heater is provided in the regenerator of the absorption chiller or the function (heating of the absorption liquid) and consumed as a heat source. The generated energy can be effectively recovered for cooling.

  When the generated power is steadily insufficient in design, the design is made such that commercial power is used in order from an auxiliary device suitable for commercial power use. A device suitable for commercial power use is a device whose use frequency is preferably fixed to the commercial frequency, and examples thereof include a control panel 400 and a control device. When the generated power is insufficient due to the partial load characteristics of the gas turbine generator, the equipment that is suitable for commercial power use is sequentially switched to the commercial power and used.

  Auxiliary equipment (various pumps, etc.) that is more advantageous to perform load control is preferentially supplied with the power generated by the generator driven by the gas turbine. In general, when the gas turbine-driven generator is a high-speed generator, the generated high-frequency alternating current is usually converted into direct current by a converter and further converted into commercial frequency alternating current by an inverter.

  However, if a DC motor is used as the auxiliary motor, load control can be easily performed by controlling the rotational speed with DC by omitting an inverter, and at the same time, loss due to orthogonal transformation of power is reduced.

  When the auxiliary motor is an AC synchronous type, the rotational speed can be changed by controlling the AC frequency during orthogonal transformation (so-called inverter control). If each auxiliary device is distributed with direct current and converted to the required frequency by each device, each device can be individually controlled to the required rotational speed. By controlling the auxiliary device in this way, it is possible to control the auxiliary device power consumption so as to substantially follow the gas turbine power generation amount.

  As shown in FIG. 8, the refrigeration facility can also be configured with a gas turbine built-in absorption refrigerator 200 and an electric vapor compression refrigerator 300. Electric power generated by the gas turbine-driven generator 5 is consumed as electric motor driving power for the vapor compression refrigerator. In this case as well, the motor of the vapor compression refrigerator can be driven and controlled by direct current or frequency control as described above. Controllability can be improved while preventing loss associated with frequency conversion of electricity.

  In addition, when the generated power of the gas turbine is smaller than the power consumption of the vapor compression refrigerator, commercial power can be used together. In this case, if the commercial power is converted into direct current and linked with the gas turbine generated power (after direct current conversion), the above-described controllability improvement effect can be obtained.

  As shown in FIG. 8, in the case where the refrigeration facility is configured with the gas turbine built-in absorption refrigerator 200 and the electric steam compression refrigerator 300, the refrigeration load control is performed by the absorption refrigerator 200 and the steam. The temperature can be controlled by detecting the temperature of the cold water produced by the compression refrigerator 300 with the temperature sensor 401. The temperature is detected at a position after the cold water is mixed (for example, the cold water delivery header 402).

  Gas turbine capacity control is accomplished by adjusting the fuel flow rate inversely proportional to the cold water temperature. Thereby, the vapor compression refrigerator driven by the output power of the generator driven by the gas turbine and the absorption refrigerator driven by the gas turbine waste heat can change the output in proportion to the capacity of the gas turbine. . As a result, both refrigeration facilities are load-controlled in inverse proportion to the cold water temperature. The detected temperature may be a temperature difference between the return and return of the cold water. In this case, the gas turbine capacity control is performed in inverse proportion to the absolute value of the temperature difference.

  The operation of the vapor compression refrigeration machine 300 can also be performed by directly driving the compressor with the shaft power of the gas turbine 100 as shown in FIG. Also in this case, in the operation range where the output of the gas turbine is proportional to the fuel flow rate, the same control as described above can be performed.

[Another embodiment]
So far, the use of refrigeration and cooling of the gas turbine built-in absorption refrigerator of the present invention has been mainly described. However, the gas turbine built-in absorption refrigerator of the present invention can be applied to heating use by switching or replacing the absorption refrigerator with an absorption chiller / heater (using a heating circuit). It can also be used for air conditioning. Such use of air conditioning can also be achieved by switching or replacing an absorption heat pump or a vapor compression refrigerator with a vapor compression heat pump.

FIG. 2 is a schematic plan view illustrating an example of a soundproof casing that surrounds the gas turbine and the generator in the gas turbine built-in absorption refrigerator according to the present invention. 1 is a schematic configuration plan view for explaining an example of a soundproof casing (enclosure) that surrounds the entire gas turbine built-in absorption refrigerator according to the present invention. It is a schematic perspective view explaining the principal part structure of the gas turbine built-in absorption refrigerator of this invention. It is a flowchart explaining the main components structure of the absorption refrigeration machine incorporating a gas turbine of the present invention. It is a flowchart explaining the other main components structure of the absorption chiller incorporating a gas turbine of the present invention. It is a flowchart explaining further another main components structure of the absorption refrigeration machine incorporating a gas turbine of the present invention. It is a schematic block diagram explaining the structure of the auxiliary machine of a gas turbine built-in absorption refrigerator. It is a schematic block diagram explaining the structure of the vapor compression refrigeration machine driven by the power generation output of the gas turbine built-in absorption refrigeration machine and the generator driven by the gas turbine. It is a schematic block diagram explaining the other structure of the vapor compression refrigeration machine driven by the power generation output of the gas turbine built-in absorption refrigeration machine and the generator driven by the gas turbine. It is a schematic block diagram explaining the conventional structure of the vapor compression refrigeration machine driven by the power generation output of a gas turbine, an absorption refrigeration machine, and a generator driven by a gas turbine.

Explanation of symbols

1 Compressor 2 Expansion turbine 3 Combustor 4 Regenerator (heat exchanger)
5 Generator 6 Fuel gas nozzle 7 Air duct 8 Heat exchanger (first stage)
9 Blower for auxiliary fuel 10 Heat exchanger 11 Heat exchanger (second stage)
12 Gas-liquid separator 13 Heat exchanger 14 Heat exchanger 15 Steam generator (heat exchanger with gas-liquid separator function)
20 High temperature regenerator 21 Gas introduction chamber for heating 22 Heat exchanger (heat transfer tube)
23 Low-temperature regenerator 24 Condenser 25 Absorber 26 Evaporator 27 Solution pump 28 Refrigerant pump 29 Chilled water pump 30 Cooling tower 31 Cooling tower fan 32 Cooling water pump 40 Heat insulation flue 100 Gas turbine 101 Soundproof box 102 Enclosure (soundproof casing)
200 Absorption type refrigerator 300 Vapor compression type refrigerator 400 Control panel 401 Temperature sensor 402 Cold water header (outward)
403 Cold water header (return)

Claims (4)

An absorption refrigeration machine using an absorption refrigeration cycle having at least a double utility number, wherein a regeneration cycle gas turbine is installed in a heating gas introduction chamber of a regenerator that regenerates an absorption liquid at the highest temperature of the absorption refrigeration The outlet of the regenerator that constitutes the engine is directly coupled without passing through the flue, and the combustion exhaust gas of the regeneration cycle gas turbine is used for heating regeneration of the absorption liquid, and the following:
(1) Absorption refrigerator casing,
(2) Gas introduction chamber for heating of the high-temperature regenerator of the absorption refrigerator,
(3) A soundproof box surrounding the regenerative cycle gas turbine and the generator exposed from the heating gas introduction chamber, and (4) at least one selected from an absorption refrigeration machine, a regenerative cycle gas turbine, and a casing surrounding the entire generator. Is used as a silencer for a regenerative cycle gas turbine.   The power generated by the generator driven by the gas turbine is derived from the power and control power of the solution pump, refrigerant pump, cooling water pump, cooling tower fan, auxiliary fuel blower and gas turbine fuel compressor attached to the absorption chiller. The gas turbine built-in absorption refrigerator according to claim 1, which is used for at least one selected application.   2. The gas turbine built-in absorption refrigeration unit according to claim 1, wherein the vapor compression refrigeration unit is provided as a part of a refrigeration equipment component, and the electric power generated by the gas turbine driven generator is driven by the vapor compression refrigeration unit. The absorption type refrigerator with a built-in gas turbine according to claim 1, which is used as all or part of electric power of a motor for an automobile.   Steam compression driven by the output power of the gas turbine-driven generator by detecting the temperature of the chilled water to be sent out and feeding it back to control the power output of the gas turbine-driven generator and the heat output of the gas turbine exhaust gas simultaneously 4. The control method for a gas turbine built-in absorption refrigerator according to claim 3, wherein the combined refrigeration output of the absorption refrigerator driven by the gas refrigerator and the gas turbine exhaust gas is controlled.

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